git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # Libav configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken Libav."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --quiet                  Suppress showing informative output
  67   --list-decoders          show all available decoders
  68   --list-encoders          show all available encoders
  69   --list-hwaccels          show all available hardware accelerators
  70   --list-demuxers          show all available demuxers
  71   --list-muxers            show all available muxers
  72   --list-parsers           show all available parsers
  73   --list-protocols         show all available protocols
  74   --list-bsfs              show all available bitstream filters
  75   --list-indevs            show all available input devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [avbuild/config.log]
  80   --disable-logging        do not log configure debug information
  81   --prefix=PREFIX          install in PREFIX [$prefix_default]
  82   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  83   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  84   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
  85   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89   --enable-rpath           use rpath when linking programs (USE WITH CARE)
  90
  91 Licensing options:
  92   --enable-gpl             allow use of GPL code, the resulting libs
  93                            and binaries will be under GPL [no]
  94   --enable-version3        upgrade (L)GPL to version 3 [no]
  95   --enable-nonfree         allow use of nonfree code, the resulting libs
  96                            and binaries will be unredistributable [no]
  97
  98 Configuration options:
  99   --disable-static         do not build static libraries [no]
 100   --enable-shared          build shared libraries [no]
 101   --enable-small           optimize for size instead of speed
 102   --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
 103   --enable-gray            enable full grayscale support (slower color)
 104   --disable-swscale-alpha  disable alpha channel support in swscale
 105   --disable-all            disable building components, libraries and programs
 106
 107 Program options:
 108   --disable-programs       do not build command line programs
 109   --disable-avconv         disable avconv build
 110   --disable-avplay         disable avplay build
 111   --disable-avprobe        disable avprobe build
 112
 113 Component options:
 114   --disable-doc            do not build documentation
 115   --disable-pod2man        do not build manual pages
 116   --disable-texi2html      do not build HTML documentation
 117   --disable-avdevice       disable libavdevice build
 118   --disable-avcodec        disable libavcodec build
 119   --disable-avformat       disable libavformat build
 120   --disable-avutil         disable libavutil build
 121   --disable-swscale        disable libswscale build
 122   --disable-avfilter       disable video filter support [no]
 123   --disable-avresample     disable libavresample build [no]
 124   --disable-pthreads       disable pthreads [auto]
 125   --disable-w32threads     disable Win32 threads [auto]
 126   --disable-network        disable network support [no]
 127   --disable-dct            disable DCT code
 128   --disable-error-resilience disable error resilience code
 129   --disable-lsp            disable LSP code
 130   --disable-lzo            disable LZO decoder code
 131   --disable-mdct           disable MDCT code
 132   --disable-rdft           disable RDFT code
 133   --disable-fft            disable FFT code
 134   --disable-faan           disable floating point AAN (I)DCT code
 135
 136 Individual component options:
 137   --disable-everything     disable all components listed below
 138   --disable-encoder=NAME   disable encoder NAME
 139   --enable-encoder=NAME    enable encoder NAME
 140   --disable-encoders       disable all encoders
 141   --disable-decoder=NAME   disable decoder NAME
 142   --enable-decoder=NAME    enable decoder NAME
 143   --disable-decoders       disable all decoders
 144   --disable-hwaccel=NAME   disable hwaccel NAME
 145   --enable-hwaccel=NAME    enable hwaccel NAME
 146   --disable-hwaccels       disable all hwaccels
 147   --disable-muxer=NAME     disable muxer NAME
 148   --enable-muxer=NAME      enable muxer NAME
 149   --disable-muxers         disable all muxers
 150   --disable-demuxer=NAME   disable demuxer NAME
 151   --enable-demuxer=NAME    enable demuxer NAME
 152   --disable-demuxers       disable all demuxers
 153   --enable-parser=NAME     enable parser NAME
 154   --disable-parser=NAME    disable parser NAME
 155   --disable-parsers        disable all parsers
 156   --enable-bsf=NAME        enable bitstream filter NAME
 157   --disable-bsf=NAME       disable bitstream filter NAME
 158   --disable-bsfs           disable all bitstream filters
 159   --enable-protocol=NAME   enable protocol NAME
 160   --disable-protocol=NAME  disable protocol NAME
 161   --disable-protocols      disable all protocols
 162   --enable-indev=NAME      enable input device NAME
 163   --disable-indev=NAME     disable input device NAME
 164   --disable-indevs         disable input devices
 165   --disable-devices        disable all devices
 166   --enable-filter=NAME     enable filter NAME
 167   --disable-filter=NAME    disable filter NAME
 168   --disable-filters        disable all filters
 169
 170 External library support:
 171
 172   Using any of the following switches will allow Libav to link to the
 173   corresponding external library. All the components depending on that library
 174   will become enabled, if all their other dependencies are met and they are not
 175   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 176   libwavpack and allow the libwavpack encoder to be built, unless it is
 177   specifically disabled with --disable-encoder=libwavpack.
 178
 179   Note that only the system libraries are auto-detected. All the other external
 180   libraries must be explicitly enabled.
 181
 182   Also note that the following help text describes the purpose of the libraries
 183   themselves, not all their features will necessarily be usable by Libav.
 184
 185   --enable-avisynth          video frameserver
 186   --enable-avxsynth          Linux version of AviSynth
 187   --enable-bzlib             bzip2 compression [autodetect]
 188   --enable-frei0r            video filtering plugins
 189   --enable-gnutls            crypto
 190   --enable-libaom            AV1 video encoding/decoding
 191   --enable-libbs2b           Bauer stereophonic-to-binaural DSP
 192   --enable-libcdio           audio CD input
 193   --enable-libdc1394         IEEE 1394/Firewire camera input
 194   --enable-libdcadec         DCA audio decoding
 195   --enable-libfaac           AAC audio encoding
 196   --enable-libfdk-aac        AAC audio encoding/decoding
 197   --enable-libfontconfig     font configuration and management
 198   --enable-libfreetype       font rendering
 199   --enable-libgsm            GSM audio encoding/decoding
 200   --enable-libhdcd           HDCD decoding filter
 201   --enable-libilbc           ILBC audio encoding/decoding
 202   --enable-libjack           JACK audio sound server
 203   --enable-libkvazaar        HEVC video encoding
 204   --enable-libmp3lame        MP3 audio encoding
 205   --enable-libopencore-amrnb AMR-NB audio encoding/decoding
 206   --enable-libopencore-amrwb AMR-WB audio decoding
 207   --enable-libopencv         computer vision
 208   --enable-libopenh264       H.264 video encoding/decoding
 209   --enable-libopenjpeg       JPEG 2000 image encoding/decoding
 210   --enable-libopus           Opus audio encoding/decoding
 211   --enable-libpulse          Pulseaudio sound server
 212   --enable-librtmp           RTMP streaming
 213   --enable-libschroedinger   Dirac video encoding/decoding
 214   --enable-libsnappy         snappy compression
 215   --enable-libspeex          Speex audio encoding/decoding
 216   --enable-libtheora         Theora video encoding/decoding
 217   --enable-libtwolame        MP2 audio encoding
 218   --enable-libvo-aacenc      AAC audio encoding
 219   --enable-libvo-amrwbenc    AMR-WB audio encoding
 220   --enable-libvorbis         Vorbis audio encoding/decoding
 221   --enable-libvpx            VP* video encoding/decoding
 222   --enable-libwavpack        Wavpack audio encoding/decoding
 223   --enable-libwebp           WebP image encoding/decoding
 224   --enable-libx264           H.264 video encoding
 225   --enable-libx265           HEVC video encoding
 226   --enable-libxavs           Chinese AVS video encoding
 227   --enable-libxcb            X window system protocol communication
 228   --enable-libxcb-shm        X11 shm communication [auto]
 229   --enable-libxcb-xfixes     X11 mouse rendering [auto]
 230   --enable-libxvid           MPEG-4 ASP video encoding
 231   --enable-openssl           crypto
 232   --enable-zlib              compression [autodetect]
 233
 234   The following libraries provide various hardware acceleration features:
 235   --enable-amf     AMF video encoding code [auto]
 236   --enable-cuda    Nvidia CUDA (dynamically linked)
 237   --enable-cuvid   Nvidia CUVID video decode acceleration
 238   --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
 239   --enable-dxva2   Microsoft DirectX 9 video acceleration [auto]
 240   --enable-libmfx  Intel MediaSDK (AKA Quick Sync Video)
 241   --enable-libnpp  Nvidia CUDA processing
 242   --enable-mmal    Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
 243   --enable-nvenc   Nvidia video encoding
 244   --enable-omx     OpenMAX IL
 245   --enable-omx-rpi OpenMAX IL for Raspberry Pi
 246   --enable-vaapi   Video Acceleration API (mainly Unix/Intel)
 247   --enable-vda     Apple Video Decode Acceleration [auto]
 248   --enable-vdpau   Nvidia Video Decode and Presentation API for Unix [auto]
 249
 250 Toolchain options:
 251   --arch=ARCH              select architecture [$arch]
 252   --cpu=CPU                select the minimum required CPU (affects
 253                            instruction selection, may crash on older CPUs)
 254   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 255   --enable-cross-compile   assume a cross-compiler is used
 256   --sysroot=PATH           root of cross-build tree
 257   --sysinclude=PATH        location of cross-build system headers
 258   --target-os=OS           compiler targets OS [$target_os]
 259   --target-exec=CMD        command to run executables on target
 260   --target-path=DIR        path to view of build directory on target
 261   --target-samples=DIR     path to samples directory on target
 262   --toolchain=NAME         set tool defaults according to NAME
 263                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
 264                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
 265                            valgrind-massif, valgrind-memcheck,
 266                            msvc, icl, gcov, llvm-cov, hardened)
 267   --nm=NM                  use nm tool
 268   --ar=AR                  use archive tool AR [$ar_default]
 269   --as=AS                  use assembler AS [$as_default]
 270   --cc=CC                  use C compiler CC [$cc_default]
 271   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 272   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 273   --ld=LD                  use linker LD
 274   --x86asmexe=X86ASM       use x86 assembler X86ASM
 275   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 276   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 277   --host-cc=HOSTCC         use host C compiler HOSTCC
 278   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 279   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 280   --host-ld=HOSTLD         use host linker HOSTLD
 281   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 282   --host-libs=HLIBS        use libs HLIBS when linking for host
 283   --host-os=OS             compiler host OS [$target_os]
 284   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 285   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 286   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 287   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 288   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
 289   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 290   --extra-version=STRING   version string suffix []
 291   --optflags=OPTFLAGS      override optimization-related compiler flags
 292   --enable-pic             build position-independent code
 293   --enable-thumb           compile for Thumb instruction set
 294   --enable-lto             use link-time optimization
 295   --env="ENV=override"     override the environment variables
 296
 297 Advanced options (experts only):
 298   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 299   --custom-allocator=NAME  use a supported custom allocator
 300   --disable-symver         disable symbol versioning
 301   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 302   --disable-safe-bitstream-reader
 303                            disable buffer boundary checking in bitreaders
 304                            (faster, but may crash)
 305   --enable-sram            allow use of on-chip SRAM
 306
 307 Optimization options (experts only):
 308   --disable-asm            disable all assembly optimizations
 309   --disable-altivec        disable AltiVec optimizations
 310   --disable-vsx            disable VSX optimizations
 311   --disable-power8         disable POWER8 optimizations
 312   --disable-amd3dnow       disable 3DNow! optimizations
 313   --disable-amd3dnowext    disable 3DNow! extended optimizations
 314   --disable-mmx            disable MMX optimizations
 315   --disable-mmxext         disable MMXEXT optimizations
 316   --disable-sse            disable SSE optimizations
 317   --disable-sse2           disable SSE2 optimizations
 318   --disable-sse3           disable SSE3 optimizations
 319   --disable-ssse3          disable SSSE3 optimizations
 320   --disable-sse4           disable SSE4 optimizations
 321   --disable-sse42          disable SSE4.2 optimizations
 322   --disable-avx            disable AVX optimizations
 323   --disable-xop            disable XOP optimizations
 324   --disable-fma3           disable FMA3 optimizations
 325   --disable-fma4           disable FMA4 optimizations
 326   --disable-avx2           disable AVX2 optimizations
 327   --disable-armv5te        disable armv5te optimizations
 328   --disable-armv6          disable armv6 optimizations
 329   --disable-armv6t2        disable armv6t2 optimizations
 330   --disable-vfp            disable VFP optimizations
 331   --disable-neon           disable NEON optimizations
 332   --disable-inline-asm     disable use of inline assembly
 333   --disable-x86asm         disable use of standalone x86 assembly
 334
 335 Developer options (useful when working on Libav itself):
 336   --disable-debug          disable debugging symbols
 337   --enable-debug=LEVEL     set the debug level [$debuglevel]
 338   --disable-optimizations  disable compiler optimizations
 339   --enable-extra-warnings  enable more compiler warnings
 340   --samples=PATH           location of test samples for FATE, if not set use
 341                            \$LIBAV_SAMPLES at make invocation time.
 342   --enable-neon-clobber-test check NEON registers for clobbering (should be
 343                            used only for debugging purposes)
 344   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 345                            should be used only for debugging purposes)
 346   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 347                            (only applies to --disable-optimizations builds)
 348   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 349                            in the name) of tests whose result is ignored
 350
 351 NOTE: Object files are built at the place where configure is launched.
 352 EOF
 353   exit 0
 354 }
 355
 356 log(){
 357     echo "$@" >> $logfile
 358 }
 359
 360 log_file(){
 361     log BEGIN $1
 362     i=1
 363     while read line; do
 364         printf '%5s   %s\n' "${i}" "${line}"
 365         i=$(($i+1))
 366     done < $1 >> $logfile
 367     log END $1
 368 }
 369
 370 echolog(){
 371     log "$@"
 372     echo "$@"
 373 }
 374
 375 warn(){
 376     log "WARNING: $*"
 377     WARNINGS="${WARNINGS}WARNING: $*\n"
 378 }
 379
 380 die(){
 381     echolog "$@"
 382     cat <<EOF
 383
 384 If you think configure made a mistake, make sure you are using the latest
 385 version from Git.  If the latest version fails, report the problem to the
 386 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
 387 EOF
 388     if disabled logging; then
 389         cat <<EOF
 390 Rerun configure with logging enabled (do not use --disable-logging), and
 391 include the log this produces with your report.
 392 EOF
 393     else
 394         cat <<EOF
 395 Include the log file "$logfile" produced by configure as this will help
 396 solving the problem.
 397 EOF
 398     fi
 399     exit 1
 400 }
 401
 402 # Avoid locale weirdness, besides we really just want to translate ASCII.
 403 toupper(){
 404     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 405 }
 406
 407 tolower(){
 408     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 409 }
 410
 411 c_escape(){
 412     echo "$*" | sed 's/["\\]/\\\0/g'
 413 }
 414
 415 sh_quote(){
 416     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 417     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 418     echo "$v"
 419 }
 420
 421 cleanws(){
 422     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 423 }
 424
 425 filter(){
 426     pat=$1
 427     shift
 428     for v; do
 429         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
 430     done
 431 }
 432
 433 filter_out(){
 434     pat=$1
 435     shift
 436     for v; do
 437         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
 438     done
 439 }
 440
 441 map(){
 442     m=$1
 443     shift
 444     for v; do eval $m; done
 445 }
 446
 447 add_suffix(){
 448     suffix=$1
 449     shift
 450     for v; do echo ${v}${suffix}; done
 451 }
 452
 453 set_all(){
 454     value=$1
 455     shift
 456     for var in $*; do
 457         eval $var=$value
 458     done
 459 }
 460
 461 set_weak(){
 462     value=$1
 463     shift
 464     for var; do
 465         eval : \${$var:=$value}
 466     done
 467 }
 468
 469 sanitize_var_name(){
 470     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 471 }
 472
 473 set_sanitized(){
 474     var=$1
 475     shift
 476     eval $(sanitize_var_name "$var")='$*'
 477 }
 478
 479 get_sanitized(){
 480     eval echo \$$(sanitize_var_name "$1")
 481 }
 482
 483 pushvar(){
 484     for pvar in $*; do
 485         eval level=\${${pvar}_level:=0}
 486         eval ${pvar}_${level}="\$$pvar"
 487         eval ${pvar}_level=$(($level+1))
 488     done
 489 }
 490
 491 popvar(){
 492     for pvar in $*; do
 493         eval level=\${${pvar}_level:-0}
 494         test $level = 0 && continue
 495         eval level=$(($level-1))
 496         eval $pvar="\${${pvar}_${level}}"
 497         eval ${pvar}_level=$level
 498         eval unset ${pvar}_${level}
 499     done
 500 }
 501
 502 enable(){
 503     set_all yes $*
 504 }
 505
 506 disable(){
 507     set_all no $*
 508 }
 509
 510 enable_weak(){
 511     set_weak yes $*
 512 }
 513
 514 disable_weak(){
 515     set_weak no $*
 516 }
 517
 518 enable_sanitized(){
 519     for var; do
 520         enable $(sanitize_var_name $var)
 521     done
 522 }
 523
 524 disable_sanitized(){
 525     for var; do
 526         disable $(sanitize_var_name $var)
 527     done
 528 }
 529
 530 do_enable_deep(){
 531     for var; do
 532         enabled $var && continue
 533         eval sel="\$${var}_select"
 534         eval sgs="\$${var}_suggest"
 535         pushvar var sgs
 536         enable_deep $sel
 537         popvar sgs
 538         enable_deep_weak $sgs
 539         popvar var
 540     done
 541 }
 542
 543 enable_deep(){
 544     do_enable_deep $*
 545     enable $*
 546 }
 547
 548 enable_deep_weak(){
 549     for var; do
 550         disabled $var && continue
 551         pushvar var
 552         do_enable_deep $var
 553         popvar var
 554         enable_weak $var
 555     done
 556 }
 557
 558 enabled(){
 559     test "${1#!}" = "$1" && op="=" || op="!="
 560     eval test "x\$${1#!}" $op "xyes"
 561 }
 562
 563 disabled(){
 564     test "${1#!}" = "$1" && op="=" || op="!="
 565     eval test "x\$${1#!}" $op "xno"
 566 }
 567
 568 enabled_all(){
 569     for opt; do
 570         enabled $opt || return 1
 571     done
 572 }
 573
 574 disabled_all(){
 575     for opt; do
 576         disabled $opt || return 1
 577     done
 578 }
 579
 580 enabled_any(){
 581     for opt; do
 582         enabled $opt && return 0
 583     done
 584 }
 585
 586 disabled_any(){
 587     for opt; do
 588         disabled $opt && return 0
 589     done
 590     return 1
 591 }
 592
 593 set_default(){
 594     for opt; do
 595         eval : \${$opt:=\$${opt}_default}
 596     done
 597 }
 598
 599 is_in(){
 600     value=$1
 601     shift
 602     for var in $*; do
 603         [ $var = $value ] && return 0
 604     done
 605     return 1
 606 }
 607
 608 check_deps(){
 609     for cfg; do
 610         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 611         disabled ${cfg}_checking && continue
 612         enable ${cfg}_checking
 613
 614         eval dep_all="\$${cfg}_deps"
 615         eval dep_any="\$${cfg}_deps_any"
 616         eval dep_con="\$${cfg}_conflict"
 617         eval dep_sel="\$${cfg}_select"
 618         eval dep_sgs="\$${cfg}_suggest"
 619         eval dep_ifa="\$${cfg}_if"
 620         eval dep_ifn="\$${cfg}_if_any"
 621
 622         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
 623         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
 624         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
 625
 626         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 627         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 628         enabled_all  $dep_all || disable $cfg
 629         enabled_any  $dep_any || disable $cfg
 630         disabled_all $dep_con || disable $cfg
 631         disabled_any $dep_sel && disable $cfg
 632
 633         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
 634
 635         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
 636             # filter out library deps, these do not belong in extralibs
 637             is_in $dep $LIBRARY_LIST && continue
 638             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
 639         done
 640
 641         disable ${cfg}_checking
 642     done
 643 }
 644
 645 print_config(){
 646     pfx=$1
 647     files=$2
 648     shift 2
 649     map 'eval echo "$v \${$v:-no}"' "$@" |
 650     awk "BEGIN { split(\"$files\", files) }
 651         {
 652             c = \"$pfx\" toupper(\$1);
 653             v = \$2;
 654             sub(/yes/, 1, v);
 655             sub(/no/,  0, v);
 656             for (f in files) {
 657                 file = files[f];
 658                 if (file ~ /\\.h\$/) {
 659                     printf(\"#define %s %d\\n\", c, v) >>file;
 660                 } else if (file ~ /\\.asm\$/) {
 661                     printf(\"%%define %s %d\\n\", c, v) >>file;
 662                 } else if (file ~ /\\.mak\$/) {
 663                     n = -v ? \"\" : \"!\";
 664                     printf(\"%s%s=yes\\n\", n, c) >>file;
 665                 }
 666             }
 667         }"
 668 }
 669
 670 print_enabled(){
 671     suf=$1
 672     shift
 673     for v; do
 674         enabled $v && printf "%s\n" ${v%$suf}
 675     done
 676 }
 677
 678 append(){
 679     var=$1
 680     shift
 681     eval "$var=\"\$$var $*\""
 682 }
 683
 684 prepend(){
 685     var=$1
 686     shift
 687     eval "$var=\"$* \$$var\""
 688 }
 689
 690 unique(){
 691     var=$1
 692     uniq_list=""
 693     for tok in $(eval echo \$$var); do
 694         uniq_list="$(filter_out $tok $uniq_list) $tok"
 695     done
 696     eval "$var=\"${uniq_list}\""
 697 }
 698
 699 resolve(){
 700     var=$1
 701     tmpvar=
 702     for entry in $(eval echo \$$var); do
 703         tmpvar="$tmpvar $(eval echo \$${entry})"
 704     done
 705     eval "$var=\"${tmpvar}\""
 706 }
 707
 708 add_cppflags(){
 709     append CPPFLAGS "$@"
 710 }
 711
 712 add_cflags(){
 713     append CFLAGS $($cflags_filter "$@")
 714 }
 715
 716 add_cflags_headers(){
 717     append CFLAGS_HEADERS $($cflags_filter "$@")
 718 }
 719
 720 add_asflags(){
 721     append ASFLAGS $($asflags_filter "$@")
 722 }
 723
 724 add_objcflags(){
 725     append OBJCFLAGS $($objcflags_filter "$@")
 726 }
 727
 728 add_ldflags(){
 729     append LDFLAGS $($ldflags_filter "$@")
 730 }
 731
 732 add_ldexeflags(){
 733     append LDEXEFLAGS $($ldflags_filter "$@")
 734 }
 735
 736 add_ldsoflags(){
 737     append LDSOFLAGS $($ldflags_filter "$@")
 738 }
 739
 740 add_stripflags(){
 741     append STRIPFLAGS "$@"
 742 }
 743
 744 add_extralibs(){
 745     prepend extralibs $($ldflags_filter "$@")
 746 }
 747
 748 add_host_cppflags(){
 749     append host_cppflags "$@"
 750 }
 751
 752 add_host_cflags(){
 753     append host_cflags $($host_cflags_filter "$@")
 754 }
 755
 756 add_host_ldflags(){
 757     append host_ldflags $($host_ldflags_filter "$@")
 758 }
 759
 760 add_compat(){
 761     append compat_objs $1
 762     shift
 763     map 'add_cppflags -D$v' "$@"
 764 }
 765
 766 test_cmd(){
 767     log "$@"
 768     "$@" >> $logfile 2>&1
 769 }
 770
 771 cc_o(){
 772     eval printf '%s\\n' $CC_O
 773 }
 774
 775 cc_e(){
 776     eval printf '%s\\n' $CC_E
 777 }
 778
 779 test_cc(){
 780     log test_cc "$@"
 781     cat > $TMPC
 782     log_file $TMPC
 783     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 784 }
 785
 786 test_objcc(){
 787     log test_objcc "$@"
 788     cat > $TMPC
 789     log_file $TMPC
 790     test_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
 791 }
 792
 793 test_cpp(){
 794     log test_cpp "$@"
 795     cat > $TMPC
 796     log_file $TMPC
 797     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 798 }
 799
 800 as_o(){
 801     eval printf '%s\\n' $AS_O
 802 }
 803
 804 test_as(){
 805     log test_as "$@"
 806     cat > $TMPS
 807     log_file $TMPS
 808     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 809 }
 810
 811 check_cmd(){
 812     log check_cmd "$@"
 813     cmd=$1
 814     disabled $cmd && return
 815     disable $cmd
 816     test_cmd $@ && enable $cmd
 817 }
 818
 819 check_as(){
 820     log check_as "$@"
 821     name=$1
 822     code=$2
 823     shift 2
 824     disable $name
 825     test_as $@ <<EOF && enable $name
 826 $code
 827 EOF
 828 }
 829
 830 check_inline_asm(){
 831     log check_inline_asm "$@"
 832     name="$1"
 833     code="$2"
 834     shift 2
 835     disable $name
 836     test_cc "$@" <<EOF && enable $name
 837 void foo(void){ __asm__ volatile($code); }
 838 EOF
 839 }
 840
 841 check_insn(){
 842     log check_insn "$@"
 843     check_inline_asm ${1}_inline "$2"
 844     check_as ${1}_external "$2"
 845 }
 846
 847 x86asm_o(){
 848     eval printf '%s\\n' $X86ASM_O
 849 }
 850
 851 test_x86asm(){
 852     log test_x86asm "$@"
 853     echo "$1" > $TMPASM
 854     log_file $TMPASM
 855     shift 1
 856     test_cmd $x86asmexe $X86ASMFLAGS "$@" $(x86asm_o $TMPO) $TMPASM
 857 }
 858
 859 ld_o(){
 860     eval printf '%s\\n' $LD_O
 861 }
 862
 863 test_ld(){
 864     log test_ld "$@"
 865     flags=$(filter_out '-l*' "$@")
 866     libs=$(filter '-l*' "$@")
 867     test_cc $($cflags_filter $flags) || return
 868     flags=$($ldflags_filter $flags)
 869     libs=$($ldflags_filter $libs)
 870     test_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 871 }
 872
 873 check_ld(){
 874     log check_ld "$@"
 875     name=$1
 876     shift
 877     disable $name
 878     test_ld $@ && enable $name
 879 }
 880
 881 print_include(){
 882     hdr=$1
 883     test "${hdr%.h}" = "${hdr}" &&
 884         echo "#include $hdr"    ||
 885         echo "#include <$hdr>"
 886 }
 887
 888 test_code(){
 889     log test_code "$@"
 890     check=$1
 891     headers=$2
 892     code=$3
 893     shift 3
 894     {
 895         for hdr in $headers; do
 896             print_include $hdr
 897         done
 898         echo "int main(void) { $code; return 0; }"
 899     } | test_$check "$@"
 900 }
 901
 902 check_cppflags(){
 903     log check_cppflags "$@"
 904     test_cpp "$@" <<EOF && add_cppflags "$@"
 905 #include <stdlib.h>;
 906 EOF
 907 }
 908
 909 test_cflags(){
 910     log test_cflags "$@"
 911     set -- $($cflags_filter "$@")
 912     test_cc "$@" <<EOF
 913 int x;
 914 EOF
 915 }
 916
 917 check_cflags(){
 918     log check_cflags "$@"
 919     test_cflags "$@" && add_cflags "$@"
 920 }
 921
 922 test_objcflags(){
 923     log test_objcflags "$@"
 924     set -- $($objcflags_filter "$@")
 925     test_objcc "$@" <<EOF
 926 int x;
 927 EOF
 928 }
 929
 930 check_objcflags(){
 931     log check_objcflags "$@"
 932     test_objcflags "$@" && add_objcflags "$@"
 933 }
 934
 935 test_ldflags(){
 936     log test_ldflags "$@"
 937     set -- $($ldflags_filter "$@")
 938     test_ld "$@" <<EOF
 939 int main(void){ return 0; }
 940 EOF
 941 }
 942
 943 check_ldflags(){
 944     log check_ldflags "$@"
 945     test_ldflags "$@" && add_ldflags "$@"
 946 }
 947
 948 test_stripflags(){
 949     log test_stripflags "$@"
 950     # call test_cc to get a fresh TMPO
 951     test_cc <<EOF
 952 int main(void) { return 0; }
 953 EOF
 954     test_cmd $strip $STRIPFLAGS "$@" $TMPO
 955 }
 956
 957 check_stripflags(){
 958     log check_stripflags "$@"
 959     test_stripflags "$@" && add_stripflags "$@"
 960 }
 961
 962 check_header(){
 963     log check_header "$@"
 964     headers=$1
 965     shift
 966     disable_sanitized $headers
 967     {
 968         for hdr in $headers; do
 969             print_include $hdr
 970         done
 971         echo "int x;"
 972     } | test_cpp "$@" && enable_sanitized $headers
 973 }
 974
 975 check_func(){
 976     log check_func "$@"
 977     func=$1
 978     shift
 979     disable $func
 980     test_ld "$@" <<EOF && enable $func
 981 extern int $func();
 982 int main(void){ $func(); }
 983 EOF
 984 }
 985
 986 check_mathfunc(){
 987     log check_mathfunc "$@"
 988     func=$1
 989     narg=$2
 990     shift 2
 991     test $narg = 2 && args="f, g" || args="f"
 992     disable $func
 993     test_ld "$@" <<EOF && enable $func
 994 #include <math.h>
 995 float foo(float f, float g) { return $func($args); }
 996 int main(void){ return 0; }
 997 EOF
 998 }
 999
1000 check_func_headers(){
1001     log check_func_headers "$@"
1002     headers=$1
1003     funcs=$2
1004     shift 2
1005     {
1006         for hdr in $headers; do
1007             print_include $hdr
1008         done
1009         for func in $funcs; do
1010             echo "long check_$func(void) { return (long) $func; }"
1011         done
1012         echo "int main(void) { return 0; }"
1013     } | test_ld "$@" && enable $funcs && enable_sanitized $headers
1014 }
1015
1016 test_cpp_condition(){
1017     log test_cpp_condition "$@"
1018     header=$1
1019     condition=$2
1020     shift 2
1021     test_cpp "$@" <<EOF
1022 #include <$header>
1023 #if !($condition)
1024 #error "unsatisfied condition: $condition"
1025 #endif
1026 EOF
1027 }
1028
1029 check_cpp_condition(){
1030     log check_cpp_condition "$@"
1031     name=$1
1032     shift 1
1033     disable $name
1034     test_cpp_condition "$@" && enable $name
1035 }
1036
1037 test_cflags_cpp(){
1038     log test_cflags_cpp "$@"
1039     flags=$1
1040     condition=$2
1041     shift 2
1042     set -- $($cflags_filter "$flags")
1043     test_cpp "$@" <<EOF
1044 #if !($condition)
1045 #error "unsatisfied condition: $condition"
1046 #endif
1047 EOF
1048 }
1049
1050 check_lib(){
1051     log check_lib "$@"
1052     name="$1"
1053     headers="$2"
1054     funcs="$3"
1055     shift 3
1056     disable $name
1057     check_func_headers "$headers" "$funcs" "$@" &&
1058         enable $name && eval ${name}_extralibs="\$@"
1059 }
1060
1061 test_pkg_config(){
1062     log test_pkg_config "$@"
1063     name="$1"
1064     pkg_version="$2"
1065     pkg="${2%% *}"
1066     headers="$3"
1067     funcs="$4"
1068     shift 4
1069     disable $name
1070     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1071     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1072     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1073     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1074         enable $name &&
1075         set_sanitized "${name}_cflags"    $pkg_cflags &&
1076         set_sanitized "${name}_extralibs" $pkg_libs
1077 }
1078
1079 check_pkg_config(){
1080     log check_pkg_config "$@"
1081     name="$1"
1082     test_pkg_config "$@" &&
1083         eval add_cflags \$${name}_cflags
1084 }
1085
1086 test_exec(){
1087     log test_exec "$@"
1088     test_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1089 }
1090
1091 check_exec_crash(){
1092     log check_exec_crash "$@"
1093     code=$(cat)
1094
1095     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1096     # are safe but may not be available everywhere.  Thus we use
1097     # raise(SIGTERM) instead.  The check is run in a subshell so we
1098     # can redirect the "Terminated" message from the shell.  SIGBUS
1099     # is not defined by standard C so it is used conditionally.
1100
1101     (test_exec "$@") >> $logfile 2>&1 <<EOF
1102 #include <signal.h>
1103 static void sighandler(int sig){
1104     raise(SIGTERM);
1105 }
1106 int foo(void){
1107     $code
1108 }
1109 int (*func_ptr)(void) = foo;
1110 int main(void){
1111     signal(SIGILL, sighandler);
1112     signal(SIGFPE, sighandler);
1113     signal(SIGSEGV, sighandler);
1114 #ifdef SIGBUS
1115     signal(SIGBUS, sighandler);
1116 #endif
1117     return func_ptr();
1118 }
1119 EOF
1120 }
1121
1122 check_type(){
1123     log check_type "$@"
1124     headers=$1
1125     type=$2
1126     shift 2
1127     disable_sanitized "$type"
1128     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1129 }
1130
1131 check_struct(){
1132     log check_struct "$@"
1133     headers=$1
1134     struct=$2
1135     member=$3
1136     shift 3
1137     disable_sanitized "${struct}_${member}"
1138     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1139         enable_sanitized "${struct}_${member}"
1140 }
1141
1142 check_builtin(){
1143     log check_builtin "$@"
1144     name=$1
1145     shift
1146     disable "$name"
1147     test_code ld "$@" && enable "$name"
1148 }
1149
1150 check_compile_assert(){
1151     log check_compile_assert "$@"
1152     name=$1
1153     headers=$2
1154     condition=$3
1155     shift 3
1156     disable "$name"
1157     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1158 }
1159
1160 check_cc(){
1161     log check_cc "$@"
1162     name=$1
1163     shift
1164     disable "$name"
1165     test_code cc "$@" && enable "$name"
1166 }
1167
1168 require(){
1169     log require "$@"
1170     name_version="$1"
1171     name="${1%% *}"
1172     shift
1173     check_lib $name "$@" || die "ERROR: $name_version not found"
1174 }
1175
1176 require_cc(){
1177     log require_cc "$@"
1178     name="$1"
1179     shift
1180     test_code cc "$@" || die "ERROR: $name failed"
1181 }
1182
1183 require_header(){
1184     log require_header "$@"
1185     headers="$1"
1186     check_header "$@" || die "ERROR: $headers not found"
1187 }
1188
1189 require_cpp_condition(){
1190     log require_cpp_condition "$@"
1191     condition="$2"
1192     test_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1193 }
1194
1195 require_pkg_config(){
1196     log require_pkg_config "$@"
1197     pkg_version="$2"
1198     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1199 }
1200
1201 hostcc_e(){
1202     eval printf '%s\\n' $HOSTCC_E
1203 }
1204
1205 hostcc_o(){
1206     eval printf '%s\\n' $HOSTCC_O
1207 }
1208
1209 test_host_cc(){
1210     log test_host_cc "$@"
1211     cat > $TMPC
1212     log_file $TMPC
1213     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1214 }
1215
1216 test_host_cpp(){
1217     log test_host_cpp "$@"
1218     cat > $TMPC
1219     log_file $TMPC
1220     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1221 }
1222
1223 check_host_cppflags(){
1224     log check_host_cppflags "$@"
1225     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1226 #include <stdlib.h>;
1227 EOF
1228 }
1229
1230 check_host_cflags(){
1231     log check_host_cflags "$@"
1232     set -- $($host_cflags_filter "$@")
1233     test_host_cc "$@" <<EOF && append host_cflags "$@"
1234 int x;
1235 EOF
1236 }
1237
1238 test_host_cpp_condition(){
1239     log test_host_cpp_condition "$@"
1240     header=$1
1241     condition=$2
1242     shift 2
1243     test_host_cpp "$@" <<EOF
1244 #include <$header>
1245 #if !($condition)
1246 #error "unsatisfied condition: $condition"
1247 #endif
1248 EOF
1249 }
1250
1251 check_host_cpp_condition(){
1252     log check_host_cpp_condition "$@"
1253     name=$1
1254     shift 1
1255     disable $name
1256     test_host_cpp_condition "$@" && enable $name
1257 }
1258
1259 cp_if_changed(){
1260     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1261     mkdir -p "$(dirname $2)"
1262     cp -f "$1" "$2"
1263 }
1264
1265 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1266 # system-dependent things.
1267
1268 AVCODEC_COMPONENTS="
1269     bsfs
1270     decoders
1271     encoders
1272     hwaccels
1273     parsers
1274 "
1275
1276 AVDEVICE_COMPONENTS="
1277     indevs
1278 "
1279 AVFILTER_COMPONENTS="
1280     filters
1281 "
1282 AVFORMAT_COMPONENTS="
1283     demuxers
1284     muxers
1285     protocols
1286 "
1287
1288 COMPONENT_LIST="
1289     $AVCODEC_COMPONENTS
1290     $AVDEVICE_COMPONENTS
1291     $AVFILTER_COMPONENTS
1292     $AVFORMAT_COMPONENTS
1293 "
1294
1295 EXAMPLE_LIST="
1296     decode_audio_example
1297     decode_video_example
1298     encode_audio_example
1299     encode_video_example
1300     filter_audio_example
1301     metadata_example
1302     output_example
1303     qsvdec_example
1304     transcode_aac_example
1305 "
1306
1307 # catchall list of things that require external libs to link
1308 EXTRALIBS_LIST="
1309     cpu_init
1310     cws2fws
1311 "
1312
1313 HWACCEL_LIBRARY_NONFREE_LIST="
1314     cuda
1315     cuvid
1316     libnpp
1317 "
1318 HWACCEL_LIBRARY_LIST="
1319     $HWACCEL_LIBRARY_NONFREE_LIST
1320     amf
1321     d3d11va
1322     dxva2
1323     libmfx
1324     mmal
1325     nvenc
1326     omx
1327     vaapi
1328     vda
1329     vdpau
1330 "
1331
1332 EXTERNAL_LIBRARY_GPL_LIST="
1333     libcdio
1334     libx264
1335     libx265
1336     libxavs
1337     libxvid
1338 "
1339
1340 EXTERNAL_LIBRARY_NONFREE_LIST="
1341     libfaac
1342     libfdk_aac
1343     openssl
1344 "
1345
1346 EXTERNAL_LIBRARY_VERSION3_LIST="
1347     libopencore_amrnb
1348     libopencore_amrwb
1349     libvo_aacenc
1350     libvo_amrwbenc
1351 "
1352
1353 EXTERNAL_LIBRARY_LIST="
1354     $EXTERNAL_LIBRARY_GPL_LIST
1355     $EXTERNAL_LIBRARY_NONFREE_LIST
1356     $EXTERNAL_LIBRARY_VERSION3_LIST
1357     avisynth
1358     avxsynth
1359     frei0r
1360     gnutls
1361     libaom
1362     libbs2b
1363     libdc1394
1364     libdcadec
1365     libfontconfig
1366     libfreetype
1367     libgsm
1368     libhdcd
1369     libilbc
1370     libjack
1371     libkvazaar
1372     libmp3lame
1373     libopencv
1374     libopenh264
1375     libopenjpeg
1376     libopus
1377     libpulse
1378     librtmp
1379     libschroedinger
1380     libsnappy
1381     libspeex
1382     libtheora
1383     libtwolame
1384     libvorbis
1385     libvpx
1386     libwavpack
1387     libwebp
1388     libxcb
1389     libxcb_shm
1390     libxcb_xfixes
1391 "
1392
1393 SYSTEM_LIBRARY_LIST="
1394     bzlib
1395     zlib
1396 "
1397
1398 FEATURE_LIST="
1399     gray
1400     hardcoded_tables
1401     omx_rpi
1402     runtime_cpudetect
1403     safe_bitstream_reader
1404     shared
1405     small
1406     sram
1407     static
1408     swscale_alpha
1409 "
1410
1411 LIBRARY_LIST="
1412     avcodec
1413     avdevice
1414     avfilter
1415     avformat
1416     avresample
1417     avutil
1418     swscale
1419 "
1420
1421 LICENSE_LIST="
1422     gpl
1423     nonfree
1424     version3
1425 "
1426
1427 PROGRAM_LIST="
1428     avconv
1429     avplay
1430     avprobe
1431 "
1432
1433 SUBSYSTEM_LIST="
1434     dct
1435     doc
1436     error_resilience
1437     faan
1438     fft
1439     lsp
1440     lzo
1441     mdct
1442     network
1443     rdft
1444 "
1445
1446 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1447 CONFIG_LIST="
1448     $EXAMPLE_LIST
1449     $EXTERNAL_LIBRARY_LIST
1450     $HWACCEL_LIBRARY_LIST
1451     $FEATURE_LIST
1452     $LICENSE_LIST
1453     $LIBRARY_LIST
1454     $PROGRAM_LIST
1455     $SUBSYSTEM_LIST
1456     $SYSTEM_LIBRARY_LIST
1457     neon_clobber_test
1458     pic
1459     pod2man
1460     texi2html
1461     thumb
1462     valgrind_backtrace
1463     xmm_clobber_test
1464     $COMPONENT_LIST
1465 "
1466
1467 THREADS_LIST="
1468     pthreads
1469     w32threads
1470 "
1471
1472 ATOMICS_LIST="
1473     atomics_gcc
1474     atomics_suncc
1475     atomics_win32
1476 "
1477
1478 ARCH_LIST="
1479     aarch64
1480     alpha
1481     arm
1482     avr32
1483     avr32_ap
1484     avr32_uc
1485     bfin
1486     ia64
1487     m68k
1488     mips
1489     mips64
1490     parisc
1491     ppc
1492     ppc64
1493     s390
1494     sh4
1495     sparc
1496     sparc64
1497     tilegx
1498     tilepro
1499     tomi
1500     x86
1501     x86_32
1502     x86_64
1503 "
1504
1505 ARCH_EXT_LIST_ARM="
1506     armv5te
1507     armv6
1508     armv6t2
1509     armv8
1510     neon
1511     vfp
1512     vfpv3
1513 "
1514
1515 ARCH_EXT_LIST_X86_SIMD="
1516     amd3dnow
1517     amd3dnowext
1518     avx
1519     avx2
1520     fma3
1521     fma4
1522     mmx
1523     mmxext
1524     sse
1525     sse2
1526     sse3
1527     sse4
1528     sse42
1529     ssse3
1530     xop
1531 "
1532
1533 ARCH_EXT_LIST_PPC="
1534     altivec
1535     dcbzl
1536     ldbrx
1537     power8
1538     ppc4xx
1539     vsx
1540 "
1541
1542 ARCH_EXT_LIST_X86="
1543     $ARCH_EXT_LIST_X86_SIMD
1544     cpunop
1545     i686
1546 "
1547
1548 ARCH_EXT_LIST_MIPS="
1549     loongson
1550     mips32r1
1551     mips64r1
1552     mips32r2
1553     mips64r2
1554     mips32r6
1555     mips64r6
1556 "
1557
1558 ARCH_EXT_LIST="
1559     $ARCH_EXT_LIST_ARM
1560     $ARCH_EXT_LIST_MIPS
1561     $ARCH_EXT_LIST_PPC
1562     $ARCH_EXT_LIST_X86
1563     vis
1564 "
1565
1566 ARCH_FEATURES="
1567     aligned_stack
1568     fast_64bit
1569     fast_clz
1570     fast_cmov
1571     local_aligned_8
1572     local_aligned_16
1573     local_aligned_32
1574     simd_align_16
1575     simd_align_32
1576 "
1577
1578 BUILTIN_LIST="
1579     atomic_cas_ptr
1580     machine_rw_barrier
1581     MemoryBarrier
1582     mm_empty
1583     rdtsc
1584     sem_timedwait
1585     sync_val_compare_and_swap
1586 "
1587 HAVE_LIST_CMDLINE="
1588     inline_asm
1589     symver
1590     x86asm
1591 "
1592
1593 HAVE_LIST_PUB="
1594     bigendian
1595     fast_unaligned
1596 "
1597
1598 HEADERS_LIST="
1599     AVFoundation_AVFoundation_h
1600     arpa_inet_h
1601     cdio_paranoia_h
1602     cdio_paranoia_paranoia_h
1603     dispatch_dispatch_h
1604     dev_bktr_ioctl_bt848_h
1605     dev_bktr_ioctl_meteor_h
1606     dev_ic_bt8xx_h
1607     dev_video_bktr_ioctl_bt848_h
1608     dev_video_meteor_ioctl_meteor_h
1609     direct_h
1610     dxgidebug_h
1611     dxva_h
1612     io_h
1613     machine_ioctl_bt848_h
1614     machine_ioctl_meteor_h
1615     malloc_h
1616     poll_h
1617     sys_param_h
1618     sys_resource_h
1619     sys_select_h
1620     sys_soundcard_h
1621     sys_time_h
1622     sys_un_h
1623     sys_videoio_h
1624     unistd_h
1625     valgrind_valgrind_h
1626     windows_h
1627     winsock2_h
1628 "
1629
1630 INTRINSICS_LIST="
1631     intrinsics_neon
1632 "
1633
1634 MATH_FUNCS="
1635     atanf
1636     atan2f
1637     cbrtf
1638     cosf
1639     exp2
1640     exp2f
1641     expf
1642     isinf
1643     isnan
1644     ldexpf
1645     llrint
1646     llrintf
1647     log2
1648     log2f
1649     log10f
1650     lrint
1651     lrintf
1652     powf
1653     rint
1654     round
1655     roundf
1656     sinf
1657     trunc
1658     truncf
1659 "
1660
1661 SYSTEM_FEATURES="
1662     dos_paths
1663     libc_msvcrt
1664     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1665     section_data_rel_ro
1666     threads
1667     uwp
1668 "
1669
1670 SYSTEM_FUNCS="
1671     aligned_malloc
1672     clock_gettime
1673     closesocket
1674     CommandLineToArgvW
1675     fcntl
1676     getaddrinfo
1677     gethrtime
1678     getopt
1679     GetProcessAffinityMask
1680     GetProcessMemoryInfo
1681     GetProcessTimes
1682     getrusage
1683     GetSystemTimeAsFileTime
1684     gettimeofday
1685     gmtime_r
1686     inet_aton
1687     isatty
1688     localtime_r
1689     mach_absolute_time
1690     MapViewOfFile
1691     memalign
1692     mmap
1693     mprotect
1694     nanosleep
1695     posix_memalign
1696     sched_getaffinity
1697     SetConsoleTextAttribute
1698     setmode
1699     setrlimit
1700     Sleep
1701     strerror_r
1702     sysconf
1703     sysctl
1704     usleep
1705     VirtualAlloc
1706 "
1707
1708 SYSTEM_LIBRARIES="
1709     sdl
1710     vaapi_1
1711     vaapi_drm
1712     vaapi_x11
1713     vdpau_x11
1714     wincrypt
1715 "
1716
1717 TOOLCHAIN_FEATURES="
1718     as_arch_directive
1719     as_fpu_directive
1720     as_func
1721     as_object_arch
1722     asm_mod_q
1723     blocks_extension
1724     ebp_available
1725     ebx_available
1726     gnu_as
1727     ibm_asm
1728     inline_asm_labels
1729     pragma_deprecated
1730     symver_asm_label
1731     symver_gnu_asm
1732     vfp_args
1733     xform_asm
1734     xmm_clobbers
1735 "
1736
1737 TYPES_LIST="
1738     CONDITION_VARIABLE_Ptr
1739     CUVIDDECODECREATEINFO_bitDepthMinus8
1740     socklen_t
1741     struct_addrinfo
1742     struct_group_source_req
1743     struct_ip_mreq_source
1744     struct_ipv6_mreq
1745     struct_pollfd
1746     struct_rusage_ru_maxrss
1747     struct_sockaddr_in6
1748     struct_sockaddr_sa_len
1749     struct_sockaddr_storage
1750     struct_v4l2_frmivalenum_discrete
1751 "
1752
1753 HAVE_LIST="
1754     $ARCH_EXT_LIST
1755     $(add_suffix _external $ARCH_EXT_LIST)
1756     $(add_suffix _inline   $ARCH_EXT_LIST)
1757     $ARCH_FEATURES
1758     $BUILTIN_LIST
1759     $HAVE_LIST_CMDLINE
1760     $HAVE_LIST_PUB
1761     $HEADERS_LIST
1762     $INTRINSICS_LIST
1763     $MATH_FUNCS
1764     $SYSTEM_FEATURES
1765     $SYSTEM_FUNCS
1766     $SYSTEM_LIBRARIES
1767     $THREADS_LIST
1768     $TOOLCHAIN_FEATURES
1769     $TYPES_LIST
1770 "
1771
1772 # options emitted with CONFIG_ prefix but not available on the command line
1773 CONFIG_EXTRA="
1774     aandcttables
1775     ac3dsp
1776     adts_header
1777     audio_frame_queue
1778     audiodsp
1779     blockdsp
1780     bswapdsp
1781     cabac
1782     cbs
1783     cbs_h264
1784     cbs_h265
1785     cbs_mpeg2
1786     dirac_parse
1787     dvprofile
1788     faandct
1789     faanidct
1790     fdctdsp
1791     flacdsp
1792     fmtconvert
1793     g722dsp
1794     gmp
1795     golomb
1796     gplv3
1797     h263dsp
1798     h264chroma
1799     h264dsp
1800     h264parse
1801     h264pred
1802     h264qpel
1803     hevcparse
1804     hpeldsp
1805     huffman
1806     huffyuvdsp
1807     huffyuvencdsp
1808     idctdsp
1809     iirfilter
1810     imdct15
1811     intrax8
1812     iso_media
1813     ividsp
1814     jpegtables
1815     lgplv3
1816     libx262
1817     libxcb_shape
1818     lpc
1819     lzf
1820     me_cmp
1821     mpeg_er
1822     mpegaudio
1823     mpegaudiodsp
1824     mpegaudioheader
1825     mpegvideo
1826     mpegvideoenc
1827     mss34dsp
1828     pixblockdsp
1829     qpeldsp
1830     qsv
1831     qsvdec
1832     qsvenc
1833     qsvvpp
1834     rangecoder
1835     riffdec
1836     riffenc
1837     rtpdec
1838     rtpenc_chain
1839     rv34dsp
1840     sinewin
1841     snappy
1842     srtp
1843     startcode
1844     texturedsp
1845     texturedspenc
1846     tpeldsp
1847     vaapi_encode
1848     vc1dsp
1849     videodsp
1850     vp3dsp
1851     vp56dsp
1852     vp8dsp
1853     wma_freqs
1854     wmv2dsp
1855 "
1856
1857 CMDLINE_SELECT="
1858     $ARCH_EXT_LIST
1859     $CONFIG_LIST
1860     $HAVE_LIST_CMDLINE
1861     $THREADS_LIST
1862     asm
1863     cross_compile
1864     debug
1865     extra_warnings
1866     logging
1867     lto
1868     optimizations
1869     rpath
1870 "
1871
1872 PATHS_LIST="
1873     bindir
1874     datadir
1875     docdir
1876     incdir
1877     libdir
1878     mandir
1879     prefix
1880     shlibdir
1881 "
1882
1883 CMDLINE_SET="
1884     $PATHS_LIST
1885     ar
1886     arch
1887     as
1888     cc
1889     objcc
1890     cpu
1891     cross_prefix
1892     custom_allocator
1893     dep_cc
1894     env
1895     extra_version
1896     host_cc
1897     host_cflags
1898     host_extralibs
1899     host_ld
1900     host_ldflags
1901     host_os
1902     ignore_tests
1903     ld
1904     logfile
1905     malloc_prefix
1906     nm
1907     optflags
1908     pkg_config
1909     pkg_config_flags
1910     samples
1911     sysinclude
1912     sysroot
1913     target_exec
1914     target_os
1915     target_path
1916     target_samples
1917     toolchain
1918     x86asmexe
1919 "
1920
1921 CMDLINE_APPEND="
1922     extra_cflags
1923     extra_objcflags
1924     host_cppflags
1925 "
1926
1927 # code dependency declarations
1928
1929 # architecture extensions
1930
1931 armv5te_deps="arm"
1932 armv6_deps="arm"
1933 armv6t2_deps="arm"
1934 armv8_deps="aarch64"
1935 neon_deps_any="aarch64 arm"
1936 intrinsics_neon_deps="neon"
1937 vfp_deps_any="aarch64 arm"
1938 vfpv3_deps="vfp"
1939
1940 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1941
1942 altivec_deps="ppc"
1943 dcbzl_deps="ppc"
1944 ldbrx_deps="ppc"
1945 ppc4xx_deps="ppc"
1946 vsx_deps="altivec"
1947 power8_deps="vsx"
1948
1949 loongson_deps="mips"
1950 mips32r1_deps="mips32"
1951 mips32r2_deps="mips32"
1952 mips32r6_deps="mips32"
1953 mips64r1_deps="mips64"
1954 mips64r2_deps="mips64"
1955 mips64r6_deps="mips64"
1956
1957 vis_deps="sparc"
1958
1959 cpunop_deps="i686"
1960 x86_64_select="i686"
1961 x86_64_suggest="fast_cmov"
1962
1963 amd3dnow_deps="mmx"
1964 amd3dnowext_deps="amd3dnow"
1965 i686_deps="x86"
1966 mmx_deps="x86"
1967 mmxext_deps="mmx"
1968 sse_deps="mmxext"
1969 sse2_deps="sse"
1970 sse3_deps="sse2"
1971 ssse3_deps="sse3"
1972 sse4_deps="ssse3"
1973 sse42_deps="sse4"
1974 avx_deps="sse42"
1975 xop_deps="avx"
1976 fma3_deps="avx"
1977 fma4_deps="avx"
1978 avx2_deps="avx"
1979
1980 mmx_external_deps="x86asm"
1981 mmx_inline_deps="inline_asm x86"
1982 mmx_suggest="mmx_external mmx_inline"
1983
1984 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1985     eval dep=\$${ext}_deps
1986     eval ${ext}_external_deps='"${dep}_external"'
1987     eval ${ext}_inline_deps='"${dep}_inline"'
1988     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1989 done
1990
1991 aligned_stack_if_any="aarch64 ppc x86"
1992 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1993 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1994 fast_unaligned_if_any="aarch64 ppc x86"
1995 simd_align_16_if_any="altivec neon sse"
1996 simd_align_32_if_any="avx"
1997
1998 # system capabilities
1999 symver_if_any="symver_asm_label symver_gnu_asm"
2000 valgrind_backtrace_conflict="optimizations"
2001 valgrind_backtrace_deps="valgrind_valgrind_h"
2002
2003 # threading support
2004 atomics_gcc_if="sync_val_compare_and_swap"
2005 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2006 atomics_win32_if="MemoryBarrier"
2007 atomics_native_if_any="$ATOMICS_LIST"
2008 w32threads_deps="atomics_native"
2009 threads_if_any="$THREADS_LIST"
2010
2011 # subsystems
2012 cbs_h264_select="cbs golomb"
2013 cbs_h265_select="cbs golomb"
2014 cbs_mpeg2_select="cbs"
2015 dct_select="rdft"
2016 dirac_parse_select="golomb"
2017 error_resilience_select="me_cmp"
2018 faandct_deps="faan"
2019 faandct_select="fdctdsp"
2020 faanidct_deps="faan"
2021 faanidct_select="idctdsp"
2022 h264dsp_select="startcode"
2023 hevcparse_select="golomb"
2024 intrax8_select="blockdsp idctdsp"
2025 mdct_select="fft"
2026 rdft_select="fft"
2027 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2028 mpeg_er_select="error_resilience"
2029 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2030 mpegaudiodsp_select="dct"
2031 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
2032 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2033 vc1dsp_select="h264chroma qpeldsp startcode"
2034
2035 # decoders / encoders
2036 aac_decoder_select="adts_header imdct15 mdct sinewin"
2037 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2038 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2039 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2040 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2041 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2042 adpcm_g722_decoder_select="g722dsp"
2043 adpcm_g722_encoder_select="g722dsp"
2044 aic_decoder_select="golomb idctdsp"
2045 alac_encoder_select="lpc"
2046 als_decoder_select="bswapdsp"
2047 amrnb_decoder_select="lsp"
2048 amrwb_decoder_select="lsp"
2049 amv_decoder_select="sp5x_decoder"
2050 ape_decoder_select="bswapdsp"
2051 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2052 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2053 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2054 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2055 atrac1_decoder_select="mdct sinewin"
2056 atrac3_decoder_select="mdct"
2057 atrac3p_decoder_select="mdct sinewin"
2058 bink_decoder_select="blockdsp hpeldsp"
2059 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2060 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2061 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2062 clearvideo_decoder_select="idctdsp"
2063 cllc_decoder_select="bswapdsp"
2064 comfortnoise_encoder_select="lpc"
2065 cook_decoder_select="audiodsp mdct sinewin"
2066 cscd_decoder_select="lzo"
2067 cscd_decoder_suggest="zlib"
2068 dca_decoder_select="fmtconvert mdct"
2069 dds_decoder_select="texturedsp"
2070 dnxhd_decoder_select="blockdsp idctdsp"
2071 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2072 dvvideo_decoder_select="dvprofile idctdsp"
2073 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2074 dxa_decoder_deps="zlib"
2075 dxv_decoder_select="lzf texturedsp"
2076 eac3_decoder_select="ac3_decoder"
2077 eac3_encoder_select="ac3_encoder"
2078 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2079 eatgq_decoder_select="aandcttables idctdsp"
2080 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2081 exr_decoder_deps="zlib"
2082 ffv1_decoder_select="rangecoder"
2083 ffv1_encoder_select="rangecoder"
2084 ffvhuff_decoder_select="huffyuv_decoder"
2085 ffvhuff_encoder_select="huffyuv_encoder"
2086 fic_decoder_select="golomb"
2087 flac_decoder_select="flacdsp"
2088 flac_encoder_select="bswapdsp flacdsp lpc"
2089 flashsv_decoder_deps="zlib"
2090 flashsv_encoder_deps="zlib"
2091 flashsv2_decoder_deps="zlib"
2092 flv_decoder_select="h263_decoder"
2093 flv_encoder_select="h263_encoder"
2094 fourxm_decoder_select="blockdsp bswapdsp"
2095 fraps_decoder_select="bswapdsp huffman"
2096 g2m_decoder_deps="zlib"
2097 g2m_decoder_select="blockdsp idctdsp jpegtables"
2098 h261_decoder_select="mpeg_er mpegvideo"
2099 h261_encoder_select="aandcttables mpegvideoenc"
2100 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2101 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2102 h263i_decoder_select="h263_decoder"
2103 h263p_encoder_select="h263_encoder"
2104 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2105 h264_decoder_suggest="error_resilience"
2106 hap_decoder_select="snappy texturedsp"
2107 hap_encoder_deps="libsnappy"
2108 hap_encoder_select="texturedspenc"
2109 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2110 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2111 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2112 iac_decoder_select="imc_decoder"
2113 imc_decoder_select="bswapdsp fft mdct sinewin"
2114 indeo3_decoder_select="hpeldsp"
2115 indeo4_decoder_select="ividsp"
2116 indeo5_decoder_select="ividsp"
2117 interplay_video_decoder_select="hpeldsp"
2118 jpegls_decoder_select="mjpeg_decoder"
2119 jv_decoder_select="blockdsp"
2120 lagarith_decoder_select="huffyuvdsp"
2121 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2122 magicyuv_decoder_select="huffyuvdsp"
2123 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2124 metasound_decoder_select="lsp mdct sinewin"
2125 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2126 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2127 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2128 mjpegb_decoder_select="mjpeg_decoder"
2129 mlp_decoder_select="mlp_parser"
2130 motionpixels_decoder_select="bswapdsp"
2131 mp1_decoder_select="mpegaudio"
2132 mp1float_decoder_select="mpegaudio"
2133 mp2_decoder_select="mpegaudio"
2134 mp2float_decoder_select="mpegaudio"
2135 mp3_decoder_select="mpegaudio"
2136 mp3adu_decoder_select="mpegaudio"
2137 mp3adufloat_decoder_select="mpegaudio"
2138 mp3float_decoder_select="mpegaudio"
2139 mp3on4_decoder_select="mpegaudio"
2140 mp3on4float_decoder_select="mpegaudio"
2141 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2142 mpc8_decoder_select="mpegaudiodsp"
2143 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2144 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2145 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2146 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2147 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2148 mpeg4_encoder_select="h263_encoder"
2149 msa1_decoder_select="mss34dsp"
2150 msmpeg4v1_decoder_select="h263_decoder"
2151 msmpeg4v2_decoder_select="h263_decoder"
2152 msmpeg4v2_encoder_select="h263_encoder"
2153 msmpeg4v3_decoder_select="h263_decoder"
2154 msmpeg4v3_encoder_select="h263_encoder"
2155 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2156 mts2_decoder_select="mss34dsp"
2157 mxpeg_decoder_select="mjpeg_decoder"
2158 nellymoser_decoder_select="mdct sinewin"
2159 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2160 nuv_decoder_select="idctdsp lzo"
2161 on2avc_decoder_select="mdct"
2162 opus_decoder_deps="avresample"
2163 opus_decoder_select="imdct15"
2164 png_decoder_deps="zlib"
2165 png_encoder_deps="zlib"
2166 png_encoder_select="huffyuvencdsp"
2167 prores_decoder_select="idctdsp"
2168 prores_encoder_select="fdctdsp"
2169 qcelp_decoder_select="lsp"
2170 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2171 ra_144_encoder_select="audio_frame_queue lpc"
2172 ralf_decoder_select="golomb"
2173 rscc_decoder_deps="zlib"
2174 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2175 rv10_encoder_select="h263_encoder"
2176 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2177 rv20_encoder_select="h263_encoder"
2178 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2179 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2180 screenpresso_decoder_deps="zlib"
2181 sipr_decoder_select="lsp"
2182 sp5x_decoder_select="mjpeg_decoder"
2183 svq1_decoder_select="hpeldsp"
2184 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2185 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2186 svq3_decoder_suggest="zlib"
2187 tak_decoder_select="audiodsp"
2188 tdsc_decoder_deps="zlib"
2189 tdsc_decoder_select="mjpeg_decoder"
2190 theora_decoder_select="vp3_decoder"
2191 thp_decoder_select="mjpeg_decoder"
2192 tiff_decoder_suggest="zlib"
2193 tiff_encoder_suggest="zlib"
2194 truehd_decoder_select="mlp_decoder"
2195 truemotion2_decoder_select="bswapdsp"
2196 truespeech_decoder_select="bswapdsp"
2197 tscc_decoder_deps="zlib"
2198 txd_decoder_select="texturedsp"
2199 twinvq_decoder_select="mdct lsp sinewin"
2200 utvideo_decoder_select="bswapdsp huffyuvdsp"
2201 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2202 vble_decoder_select="huffyuvdsp"
2203 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2204 vc1image_decoder_select="vc1_decoder"
2205 vorbis_decoder_select="mdct"
2206 vorbis_encoder_select="mdct"
2207 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2208 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2209 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2210 vp6a_decoder_select="vp6_decoder"
2211 vp6f_decoder_select="vp6_decoder"
2212 vp7_decoder_select="h264pred videodsp vp8dsp"
2213 vp8_decoder_select="h264pred videodsp vp8dsp"
2214 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2215 webp_decoder_select="vp8_decoder"
2216 wmapro_decoder_select="mdct sinewin wma_freqs"
2217 wmav1_decoder_select="mdct sinewin wma_freqs"
2218 wmav1_encoder_select="mdct sinewin wma_freqs"
2219 wmav2_decoder_select="mdct sinewin wma_freqs"
2220 wmav2_encoder_select="mdct sinewin wma_freqs"
2221 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2222 wmv1_decoder_select="h263_decoder"
2223 wmv1_encoder_select="h263_encoder"
2224 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2225 wmv2_encoder_select="h263_encoder wmv2dsp"
2226 wmv3_decoder_select="vc1_decoder"
2227 wmv3image_decoder_select="wmv3_decoder"
2228 zerocodec_decoder_deps="zlib"
2229 zlib_decoder_deps="zlib"
2230 zlib_encoder_deps="zlib"
2231 zmbv_decoder_deps="zlib"
2232 zmbv_encoder_deps="zlib"
2233
2234 # hardware accelerators
2235 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2236 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2237 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2238 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2239
2240 h263_vaapi_hwaccel_deps="vaapi"
2241 h263_vaapi_hwaccel_select="h263_decoder"
2242 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2243 h264_cuvid_hwaccel_select="h264_decoder"
2244 h264_d3d11va_hwaccel_deps="d3d11va"
2245 h264_d3d11va_hwaccel_select="h264_decoder"
2246 h264_d3d11va2_hwaccel_deps="d3d11va"
2247 h264_d3d11va2_hwaccel_select="h264_decoder"
2248 h264_dxva2_hwaccel_deps="dxva2"
2249 h264_dxva2_hwaccel_select="h264_decoder"
2250 h264_vaapi_hwaccel_deps="vaapi"
2251 h264_vaapi_hwaccel_select="h264_decoder"
2252 h264_vda_hwaccel_deps="vda"
2253 h264_vda_hwaccel_select="h264_decoder"
2254 h264_vda_old_hwaccel_deps="vda"
2255 h264_vda_old_hwaccel_select="h264_decoder"
2256 h264_vdpau_hwaccel_deps="vdpau"
2257 h264_vdpau_hwaccel_select="h264_decoder"
2258 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2259 hevc_cuvid_hwaccel_select="hevc_decoder"
2260 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2261 hevc_d3d11va_hwaccel_select="hevc_decoder"
2262 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2263 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2264 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2265 hevc_dxva2_hwaccel_select="hevc_decoder"
2266 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2267 hevc_vaapi_hwaccel_select="hevc_decoder"
2268 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2269 hevc_vdpau_hwaccel_select="hevc_decoder"
2270 mpeg1_vdpau_hwaccel_deps="vdpau"
2271 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2272 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2273 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2274 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2275 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2276 mpeg2_dxva2_hwaccel_deps="dxva2"
2277 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2278 mpeg2_vaapi_hwaccel_deps="vaapi"
2279 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2280 mpeg2_vdpau_hwaccel_deps="vdpau"
2281 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2282 mpeg4_vaapi_hwaccel_deps="vaapi"
2283 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2284 mpeg4_vdpau_hwaccel_deps="vdpau"
2285 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2286 vc1_d3d11va_hwaccel_deps="d3d11va"
2287 vc1_d3d11va_hwaccel_select="vc1_decoder"
2288 vc1_d3d11va2_hwaccel_deps="d3d11va"
2289 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2290 vc1_dxva2_hwaccel_deps="dxva2"
2291 vc1_dxva2_hwaccel_select="vc1_decoder"
2292 vc1_vaapi_hwaccel_deps="vaapi"
2293 vc1_vaapi_hwaccel_select="vc1_decoder"
2294 vc1_vdpau_hwaccel_deps="vdpau"
2295 vc1_vdpau_hwaccel_select="vc1_decoder"
2296 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2297 vp8_vaapi_hwaccel_select="vp8_decoder"
2298 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2299 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2300 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2301 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2302 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2303
2304 # hardware-accelerated codecs
2305 amf_deps_any="libdl LoadLibrary"
2306 nvenc_deps_any="libdl LoadLibrary"
2307 omx_deps="libdl pthreads"
2308 omx_rpi_select="omx"
2309 qsv_deps="libmfx"
2310 qsvdec_select="qsv"
2311 qsvenc_select="qsv"
2312 qsvvpp_select="qsv"
2313 vaapi_encode_deps="vaapi"
2314
2315 hwupload_cuda_filter_deps="cuda"
2316 scale_npp_filter_deps="cuda libnpp"
2317
2318 h264_amf_encoder_deps="amf"
2319 h264_mmal_decoder_deps="mmal"
2320 h264_nvenc_encoder_deps="nvenc"
2321 h264_omx_encoder_deps="omx"
2322 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2323 h264_qsv_encoder_select="qsvenc"
2324 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2325 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2326 hevc_amf_encoder_deps="amf"
2327 hevc_nvenc_encoder_deps="nvenc"
2328 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2329 hevc_qsv_encoder_select="hevcparse qsvenc"
2330 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2331 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2332 mjpeg_qsv_encoder_deps="libmfx"
2333 mjpeg_qsv_encoder_select="qsvenc"
2334 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2335 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2336 mpeg2_mmal_decoder_deps="mmal"
2337 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2338 mpeg2_qsv_encoder_select="qsvenc"
2339 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2340 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2341 mpeg4_omx_encoder_deps="omx"
2342 vc1_mmal_decoder_deps="mmal"
2343 vc1_qsv_decoder_select="qsvdec vc1_parser"
2344 vp8_qsv_decoder_select="qsvdec vp8_parser"
2345 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2346 vp8_vaapi_encoder_select="vaapi_encode"
2347 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2348 vp9_vaapi_encoder_select="vaapi_encode"
2349
2350 nvenc_h264_encoder_select="h264_nvenc_encoder"
2351 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2352
2353 # parsers
2354 aac_parser_select="adts_header"
2355 h264_parser_select="golomb h264dsp h264parse"
2356 hevc_parser_select="hevcparse"
2357 mpegaudio_parser_select="mpegaudioheader"
2358 mpegvideo_parser_select="mpegvideo"
2359 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2360 vc1_parser_select="vc1dsp"
2361
2362 # bitstream_filters
2363 aac_adtstoasc_bsf_select="adts_header"
2364 h264_metadata_bsf_select="cbs_h264"
2365 h264_redundant_pps_bsf_select="cbs_h264"
2366 hevc_metadata_bsf_select="cbs_h265"
2367 mjpeg2jpeg_bsf_select="jpegtables"
2368 mpeg2_metadata_bsf_select="cbs_mpeg2"
2369 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2370
2371 # external libraries
2372 avisynth_deps="LoadLibrary"
2373 avxsynth_deps="libdl"
2374 avisynth_demuxer_deps_any="avisynth avxsynth"
2375 avisynth_demuxer_select="riffdec"
2376 libaom_av1_decoder_deps="libaom"
2377 libaom_av1_encoder_deps="libaom"
2378 libdcadec_decoder_deps="libdcadec"
2379 libfaac_encoder_deps="libfaac"
2380 libfaac_encoder_select="audio_frame_queue"
2381 libfdk_aac_decoder_deps="libfdk_aac"
2382 libfdk_aac_encoder_deps="libfdk_aac"
2383 libfdk_aac_encoder_select="audio_frame_queue"
2384 libgsm_decoder_deps="libgsm"
2385 libgsm_encoder_deps="libgsm"
2386 libgsm_ms_decoder_deps="libgsm"
2387 libgsm_ms_encoder_deps="libgsm"
2388 libilbc_decoder_deps="libilbc"
2389 libilbc_encoder_deps="libilbc"
2390 libkvazaar_encoder_deps="libkvazaar"
2391 libmp3lame_encoder_deps="libmp3lame"
2392 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2393 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2394 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2395 libopencore_amrnb_encoder_select="audio_frame_queue"
2396 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2397 libopenh264_decoder_deps="libopenh264"
2398 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2399 libopenh264_encoder_deps="libopenh264"
2400 libopenjpeg_decoder_deps="libopenjpeg"
2401 libopenjpeg_encoder_deps="libopenjpeg"
2402 libopus_decoder_deps="libopus"
2403 libopus_encoder_deps="libopus"
2404 libopus_encoder_select="audio_frame_queue"
2405 libschroedinger_decoder_deps="libschroedinger"
2406 libschroedinger_encoder_deps="libschroedinger"
2407 libspeex_decoder_deps="libspeex"
2408 libspeex_encoder_deps="libspeex"
2409 libspeex_encoder_select="audio_frame_queue"
2410 libtheora_encoder_deps="libtheora"
2411 libtwolame_encoder_deps="libtwolame"
2412 libvo_aacenc_encoder_deps="libvo_aacenc"
2413 libvo_aacenc_encoder_select="audio_frame_queue"
2414 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2415 libvorbis_encoder_deps="libvorbis"
2416 libvorbis_encoder_select="audio_frame_queue"
2417 libvpx_vp8_decoder_deps="libvpx"
2418 libvpx_vp8_encoder_deps="libvpx"
2419 libvpx_vp9_decoder_deps="libvpx"
2420 libvpx_vp9_encoder_deps="libvpx"
2421 libwavpack_encoder_deps="libwavpack"
2422 libwavpack_encoder_select="audio_frame_queue"
2423 libwebp_encoder_deps="libwebp"
2424 libx262_encoder_deps="libx262"
2425 libx264_encoder_deps="libx264"
2426 libx265_encoder_deps="libx265"
2427 libxavs_encoder_deps="libxavs"
2428 libxvid_encoder_deps="libxvid mkstemp"
2429
2430 # demuxers / muxers
2431 ac3_demuxer_select="ac3_parser"
2432 asf_demuxer_select="riffdec"
2433 asf_muxer_select="riffenc"
2434 asf_stream_muxer_select="asf_muxer"
2435 avi_demuxer_select="iso_media riffdec"
2436 avi_muxer_select="riffenc"
2437 caf_demuxer_select="iso_media riffdec"
2438 dash_muxer_select="mp4_muxer"
2439 dirac_demuxer_select="dirac_parser"
2440 dv_demuxer_select="dvprofile"
2441 dv_muxer_select="dvprofile"
2442 dxa_demuxer_select="riffdec"
2443 eac3_demuxer_select="ac3_parser"
2444 f4v_muxer_select="mov_muxer"
2445 flac_demuxer_select="flac_parser"
2446 hds_muxer_select="flv_muxer"
2447 hls_muxer_select="mpegts_muxer"
2448 ipod_muxer_select="mov_muxer"
2449 ismv_muxer_select="mov_muxer"
2450 matroska_audio_muxer_select="matroska_muxer"
2451 matroska_demuxer_select="iso_media riffdec"
2452 matroska_demuxer_suggest="bzlib lzo zlib"
2453 matroska_muxer_select="iso_media riffenc"
2454 mmf_muxer_select="riffenc"
2455 mov_demuxer_select="iso_media riffdec"
2456 mov_demuxer_suggest="zlib"
2457 mov_muxer_select="iso_media riffenc rtpenc_chain"
2458 mp3_demuxer_select="mpegaudio_parser"
2459 mp3_muxer_select="mpegaudioheader"
2460 mp4_muxer_select="mov_muxer"
2461 mpegts_demuxer_select="iso_media"
2462 mpegts_muxer_select="adts_muxer latm_muxer"
2463 mpegtsraw_demuxer_select="mpegts_demuxer"
2464 mxf_d10_muxer_select="mxf_muxer"
2465 nut_muxer_select="riffenc"
2466 nuv_demuxer_select="riffdec"
2467 oga_muxer_select="ogg_muxer"
2468 ogg_demuxer_select="dirac_parse"
2469 opus_muxer_select="ogg_muxer"
2470 psp_muxer_select="mov_muxer"
2471 rtp_demuxer_select="sdp_demuxer"
2472 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2473 rtsp_demuxer_select="http_protocol rtpdec"
2474 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2475 sap_demuxer_select="sdp_demuxer"
2476 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2477 sdp_demuxer_select="rtpdec"
2478 smoothstreaming_muxer_select="ismv_muxer"
2479 spdif_demuxer_select="adts_header"
2480 spdif_muxer_select="adts_header"
2481 spx_muxer_select="ogg_muxer"
2482 swf_demuxer_suggest="zlib"
2483 tak_demuxer_select="tak_parser"
2484 tg2_muxer_select="mov_muxer"
2485 tgp_muxer_select="mov_muxer"
2486 w64_demuxer_select="wav_demuxer"
2487 wav_demuxer_select="riffdec"
2488 wav_muxer_select="riffenc"
2489 webm_muxer_select="iso_media riffenc"
2490 wtv_demuxer_select="mpegts_demuxer riffdec"
2491 xmv_demuxer_select="riffdec"
2492 xwma_demuxer_select="riffdec"
2493
2494 # indevs
2495 alsa_indev_deps="alsa"
2496 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2497 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2498 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2499 fbdev_indev_deps="linux_fb_h"
2500 jack_indev_deps="libjack"
2501 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2502 libcdio_indev_deps="libcdio"
2503 libdc1394_indev_deps="libdc1394"
2504 oss_indev_deps_any="sys_soundcard_h"
2505 pulse_indev_deps="libpulse"
2506 sndio_indev_deps="sndio"
2507 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2508 vfwcap_indev_deps="vfw32 vfwcap_defines"
2509 xcbgrab_indev_deps="libxcb libxcb_shape"
2510 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2511
2512 # protocols
2513 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2514 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2515 ffrtmpcrypt_protocol_select="tcp_protocol"
2516 ffrtmphttp_protocol_conflict="librtmp_protocol"
2517 ffrtmphttp_protocol_select="http_protocol"
2518 gopher_protocol_select="network"
2519 http_protocol_select="tcp_protocol"
2520 http_protocol_suggest="zlib"
2521 httpproxy_protocol_select="tcp_protocol"
2522 httpproxy_protocol_suggest="zlib"
2523 https_protocol_select="tls_protocol"
2524 https_protocol_suggest="zlib"
2525 icecast_protocol_select="http_protocol"
2526 librtmp_protocol_deps="librtmp"
2527 librtmpe_protocol_deps="librtmp"
2528 librtmps_protocol_deps="librtmp"
2529 librtmpt_protocol_deps="librtmp"
2530 librtmpte_protocol_deps="librtmp"
2531 mmsh_protocol_select="http_protocol"
2532 mmst_protocol_select="network"
2533 rtmp_protocol_conflict="librtmp_protocol"
2534 rtmp_protocol_select="tcp_protocol"
2535 rtmp_protocol_suggest="zlib"
2536 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2537 rtmpe_protocol_suggest="zlib"
2538 rtmps_protocol_conflict="librtmp_protocol"
2539 rtmps_protocol_select="tls_protocol"
2540 rtmps_protocol_suggest="zlib"
2541 rtmpt_protocol_select="ffrtmphttp_protocol"
2542 rtmpt_protocol_suggest="zlib"
2543 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2544 rtmpte_protocol_suggest="zlib"
2545 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2546 rtmpts_protocol_suggest="zlib"
2547 rtp_protocol_select="udp_protocol"
2548 sctp_protocol_deps="struct_sctp_event_subscribe"
2549 sctp_protocol_select="network"
2550 srtp_protocol_select="rtp_protocol srtp"
2551 tcp_protocol_select="network"
2552 tls_protocol_deps_any="gnutls openssl"
2553 tls_protocol_select="tcp_protocol"
2554 udp_protocol_select="network"
2555 unix_protocol_deps="sys_un_h"
2556 unix_protocol_select="network"
2557
2558 # filters
2559 asyncts_filter_deps="avresample"
2560 blackframe_filter_deps="gpl"
2561 boxblur_filter_deps="gpl"
2562 bs2b_filter_deps="libbs2b"
2563 cropdetect_filter_deps="gpl"
2564 deinterlace_qsv_filter_deps="libmfx"
2565 deinterlace_vaapi_filter_deps="vaapi"
2566 delogo_filter_deps="gpl"
2567 drawtext_filter_deps="libfreetype"
2568 drawtext_filter_suggest="libfontconfig"
2569 frei0r_filter_deps="frei0r libdl"
2570 frei0r_src_filter_deps="frei0r libdl"
2571 hdcd_filter_deps="libhdcd"
2572 hqdn3d_filter_deps="gpl"
2573 interlace_filter_deps="gpl"
2574 movie_filter_deps="avcodec avformat"
2575 ocv_filter_deps="libopencv"
2576 overlay_qsv_filter_deps="libmfx"
2577 overlay_qsv_filter_select="qsvvpp"
2578 resample_filter_deps="avresample"
2579 scale_filter_deps="swscale"
2580 scale_qsv_filter_deps="libmfx"
2581 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2582 vpp_qsv_filter_deps="libmfx"
2583 vpp_qsv_filter_select="qsvvpp"
2584
2585 # examples
2586 decode_audio_example_deps="avcodec avutil"
2587 decode_video_example_deps="avcodec avutil"
2588 encode_audio_example_deps="avcodec avutil"
2589 encode_video_example_deps="avcodec avutil"
2590 filter_audio_example_deps="avfilter avutil"
2591 metadata_example_deps="avformat avutil"
2592 output_example_deps="avcodec avformat avresample avutil swscale"
2593 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2594 transcode_aac_example_deps="avcodec avformat avresample"
2595
2596 # EXTRALIBS_LIST
2597 cpu_init_extralibs="pthreads_extralibs"
2598 cws2fws_extralibs="zlib_extralibs"
2599
2600 # libraries, in linking order
2601 avcodec_deps="avutil"
2602 avcodec_select="null_bsf"
2603 avdevice_deps="avformat avcodec avutil"
2604 avfilter_deps="avutil"
2605 avformat_deps="avcodec avutil"
2606 avformat_suggest="network"
2607 avresample_deps="avutil"
2608 swscale_deps="avutil"
2609
2610 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2611 avdevice_extralibs="libm_extralibs"
2612 avformat_extralibs="libm_extralibs"
2613 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2614 avresample_extralibs="libm_extralibs"
2615 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2616 swscale_extralibs="libm_extralibs"
2617
2618 # programs
2619 avconv_deps="avcodec avfilter avformat avresample swscale"
2620 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2621                fps_filter null_filter resample_filter scale_filter
2622                trim_filter"
2623 avconv_suggest="psapi shell32"
2624 avplay_deps="avcodec avfilter avformat avresample sdl"
2625 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2626 avplay_suggest="shell32"
2627 avprobe_deps="avcodec avformat"
2628 avprobe_suggest="shell32"
2629
2630 # documentation
2631 pod2man_deps="doc"
2632 texi2html_deps="doc"
2633
2634 # default parameters
2635
2636 logfile="avbuild/config.log"
2637
2638 # installation paths
2639 prefix_default="/usr/local"
2640 bindir_default='${prefix}/bin'
2641 datadir_default='${prefix}/share/avconv'
2642 docdir_default='${prefix}/share/doc/libav'
2643 incdir_default='${prefix}/include'
2644 libdir_default='${prefix}/lib'
2645 mandir_default='${prefix}/share/man'
2646 shlibdir_default="$libdir_default"
2647
2648 # toolchain
2649 ar_default="ar"
2650 cc_default="gcc"
2651 host_cc_default="gcc"
2652 x86asmexe_default="nasm"
2653 ln_s="ln -s -f"
2654 nm_default="nm -g"
2655 pkg_config_default=pkg-config
2656 ranlib="ranlib"
2657 strip="strip"
2658 version_script='--version-script'
2659 objformat="elf32"
2660
2661 # machine
2662 arch_default=$(uname -m)
2663 cpu="generic"
2664 intrinsics="none"
2665
2666 # OS
2667 target_os_default=$(tolower $(uname -s))
2668 host_os=$target_os_default
2669
2670 # configurable options
2671 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2672
2673 enable asm
2674 enable debug
2675 enable doc
2676 enable faan faandct faanidct
2677 enable optimizations
2678 enable safe_bitstream_reader
2679 enable static
2680 enable swscale_alpha
2681 enable valgrind_backtrace
2682
2683 # By default, enable only those hwaccels that have no external dependencies.
2684 enable d3d11va dxva2 vda vdpau
2685
2686 # internal components are enabled by default
2687 enable $EXTRALIBS_LIST
2688
2689 # Avoid external, non-system, libraries getting enabled by dependency resolution
2690 disable $EXTERNAL_LIBRARY_LIST
2691
2692 # build settings
2693 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2694 LIBPREF="lib"
2695 LIBSUF=".a"
2696 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2697 SLIBPREF="lib"
2698 SLIBSUF=".so"
2699 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2700 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2701 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2702 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2703 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2704 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2705 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2706
2707 asflags_filter=echo
2708 cflags_filter=echo
2709 ldflags_filter=echo
2710
2711 AS_C='-c'
2712 AS_O='-o $@'
2713 CC_C='-c'
2714 CC_E='-E -o $@'
2715 CC_O='-o $@'
2716 OBJCC_C='-c'
2717 OBJCC_E='-E -o $@'
2718 OBJCC_O='-o $@'
2719 X86ASM_O='-o $@'
2720 LD_O='-o $@'
2721 LD_LIB='-l%'
2722 LD_PATH='-L'
2723 HOSTCC_C='-c'
2724 HOSTCC_E='-E -o $@'
2725 HOSTCC_O='-o $@'
2726 HOSTLD_O='-o $@'
2727
2728 host_extralibs='-lm'
2729 host_cflags_filter=echo
2730 host_ldflags_filter=echo
2731
2732 target_path='$(CURDIR)'
2733
2734 # since the object filename is not given with the -MM flag, the compiler
2735 # is only able to print the basename, and we must add the path ourselves
2736 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2737 DEPFLAGS='-MM'
2738
2739 mkdir -p avbuild
2740
2741 # find source path
2742 if test -f configure; then
2743     source_path=.
2744 else
2745     source_path=$(cd $(dirname "$0"); pwd)
2746     echo "$source_path" | grep -q '[[:blank:]]' &&
2747         die "Out of tree builds are impossible with whitespace in source path."
2748     test -e "$source_path/config.h" &&
2749         die "Out of tree builds are impossible with config.h in source dir."
2750 fi
2751
2752 for v in "$@"; do
2753     r=${v#*=}
2754     l=${v%"$r"}
2755     r=$(sh_quote "$r")
2756     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2757 done
2758
2759 find_things(){
2760     thing=$1
2761     pattern=$2
2762     file=$source_path/$3
2763     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2764 }
2765
2766 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2767 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2768 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2769 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2770 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2771 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2772 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2773
2774 find_things_extern(){
2775     thing=$1
2776     pattern=$2
2777     file=$source_path/$3
2778     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2779 }
2780
2781 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2782 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
2783 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2784
2785 AVCODEC_COMPONENTS_LIST="
2786     $BSF_LIST
2787     $DECODER_LIST
2788     $ENCODER_LIST
2789     $HWACCEL_LIST
2790     $PARSER_LIST
2791 "
2792
2793 AVDEVICE_COMPONENTS_LIST="
2794     $INDEV_LIST
2795 "
2796
2797 AVFILTER_COMPONENTS_LIST="
2798     $FILTER_LIST
2799 "
2800
2801 AVFORMAT_COMPONENTS_LIST="
2802     $DEMUXER_LIST
2803     $MUXER_LIST
2804     $PROTOCOL_LIST
2805 "
2806
2807 ALL_COMPONENTS="
2808     $AVCODEC_COMPONENTS_LIST
2809     $AVDEVICE_COMPONENTS_LIST
2810     $AVFILTER_COMPONENTS_LIST
2811     $AVFORMAT_COMPONENTS_LIST
2812 "
2813
2814 for n in $COMPONENT_LIST; do
2815     v=$(toupper ${n%s})_LIST
2816     eval enable \$$v
2817     eval ${n}_if_any="\$$v"
2818 done
2819
2820 enable $ARCH_EXT_LIST
2821
2822 die_unknown(){
2823     echo "Unknown option \"$1\"."
2824     echo "See $0 --help for available options."
2825     exit 1
2826 }
2827
2828 print_3_columns() {
2829     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2830 }
2831
2832 show_list() {
2833     suffix=_$1
2834     shift
2835     echo $* | sed s/$suffix//g | print_3_columns
2836     exit 0
2837 }
2838
2839 for opt do
2840     optval="${opt#*=}"
2841     case "$opt" in
2842         --extra-ldflags=*)
2843             add_ldflags $optval
2844         ;;
2845         --extra-ldexeflags=*)
2846             add_ldexeflags $optval
2847         ;;
2848         --extra-ldsoflags=*)
2849             add_ldsoflags $optval
2850         ;;
2851         --extra-libs=*)
2852             add_extralibs $optval
2853         ;;
2854         --disable-devices)
2855             disable $INDEV_LIST
2856         ;;
2857         --enable-debug=*)
2858             debuglevel="$optval"
2859         ;;
2860         --disable-programs)
2861             disable $PROGRAM_LIST
2862         ;;
2863         --disable-everything)
2864             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2865         ;;
2866         --disable-all)
2867             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2868             disable $LIBRARY_LIST $PROGRAM_LIST doc
2869         ;;
2870         --enable-*=*|--disable-*=*)
2871             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2872             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2873             eval list=\$$(toupper $thing)_LIST
2874             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2875             $action $(filter "$name" $list)
2876         ;;
2877         --enable-yasm|--disable-yasm)
2878             warn "The ${opt} option is only provided for compatibility and will be\n"\
2879                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2880             test $opt = --enable-yasm && x86asm=yes || x86asm=no
2881         ;;
2882         --enable-?*|--disable-?*)
2883             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2884             if is_in $option $COMPONENT_LIST; then
2885                 test $action = disable && action=unset
2886                 eval $action \$$(toupper ${option%s})_LIST
2887             elif is_in $option $CMDLINE_SELECT; then
2888                 $action $option
2889             else
2890                 die_unknown $opt
2891             fi
2892         ;;
2893         --list-*)
2894             NAME="${opt#--list-}"
2895             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2896             NAME=${NAME%s}
2897             eval show_list $NAME \$$(toupper $NAME)_LIST
2898         ;;
2899         --help|-h) show_help
2900         ;;
2901         --quiet|-q) quiet=yes
2902         ;;
2903         *)
2904             optname="${opt%%=*}"
2905             optname="${optname#--}"
2906             optname=$(echo "$optname" | sed 's/-/_/g')
2907             if is_in $optname $CMDLINE_SET; then
2908                 eval $optname='$optval'
2909             elif is_in $optname $CMDLINE_APPEND; then
2910                 append $optname "$optval"
2911             else
2912                 die_unknown $opt
2913             fi
2914         ;;
2915     esac
2916 done
2917
2918 for e in $env; do
2919     eval "export $e"
2920 done
2921
2922 disabled logging && logfile=/dev/null
2923
2924 # command line configuration sanity checks
2925
2926 # we need to build at least one lib type
2927 if ! enabled_any static shared; then
2928     cat <<EOF
2929 At least one library type must be built.
2930 Specify --enable-static to build the static libraries or --enable-shared to
2931 build the shared libraries as well. To only build the shared libraries specify
2932 --disable-static in addition to --enable-shared.
2933 EOF
2934     exit 1
2935 fi
2936
2937 # Die early if licensing-related configure options are incompatible.
2938 die_license_disabled() {
2939     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2940 }
2941
2942 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2943 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2944 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2945
2946 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2947
2948 if enabled nonfree; then
2949     license="nonfree and unredistributable"
2950 elif enabled gplv3; then
2951     license="GPL version 3 or later"
2952 elif enabled lgplv3; then
2953     license="LGPL version 3 or later"
2954 elif enabled gpl; then
2955     license="GPL version 2 or later"
2956 else
2957     license="LGPL version 2.1 or later"
2958 fi
2959
2960 enabled_all gnutls openssl &&
2961     die "GnuTLS and OpenSSL must not be enabled at the same time."
2962
2963 # Disable all the library-specific components if the library itself
2964 # is disabled, see AVCODEC_LIST and following _LIST variables.
2965
2966 disable_components(){
2967     disabled ${1} && disable $(
2968         eval components="\$$(toupper ${1})_COMPONENTS"
2969         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2970     )
2971 }
2972
2973 map 'disable_components $v' $LIBRARY_LIST
2974
2975 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2976 set >> $logfile
2977
2978 case "$toolchain" in
2979     *-asan)
2980         cc_default="${toolchain%-asan}"
2981         add_cflags  -fsanitize=address
2982         add_ldflags -fsanitize=address
2983     ;;
2984     *-msan)
2985         cc_default="${toolchain%-msan}"
2986         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2987         add_ldflags -fsanitize=memory
2988     ;;
2989     *-tsan)
2990         cc_default="${toolchain%-tsan}"
2991         add_cflags  -fsanitize=thread -fPIE
2992         add_ldflags -fsanitize=thread -pie
2993         case "$toolchain" in
2994             gcc-tsan)
2995                 add_cflags  -fPIC
2996                 add_ldflags -fPIC
2997                 ;;
2998         esac
2999     ;;
3000     *-usan)
3001         cc_default="${toolchain%-usan}"
3002         add_cflags  -fsanitize=undefined
3003         add_ldflags -fsanitize=undefined
3004         case "$toolchain" in
3005             clang-usan)
3006                 add_cflags -O1
3007                 ;;
3008         esac
3009     ;;
3010     valgrind-*)
3011         target_exec_default="valgrind"
3012         case "$toolchain" in
3013             valgrind-massif)
3014                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
3015                 ;;
3016             valgrind-memcheck)
3017                 target_exec_args="--track-origins=yes --leak-check=full"
3018                 ;;
3019         esac
3020     ;;
3021     msvc)
3022         # Check whether the current MSVC version needs the C99 converter.
3023         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3024         # support enough of C99 to build libav. Default to the new
3025         # behaviour if the regexp was unable to match anything, since this
3026         # successfully parses the version number of existing supported
3027         # versions that require the converter (MSVC 2010 and 2012).
3028         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3029         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3030             cc_default="cl"
3031         else
3032             cc_default="c99wrap cl"
3033         fi
3034         ld_default="$source_path/compat/windows/mslink"
3035         nm_default="dumpbin -symbols"
3036         ar_default="lib"
3037         case "$arch" in
3038         aarch64|arm64)
3039             as_default="armasm64"
3040             ;;
3041         arm*)
3042             as_default="armasm"
3043             ;;
3044         esac
3045         target_os_default="win32"
3046         # Use a relative path for TMPDIR. This makes sure all the
3047         # ffconf temp files are written with a relative path, avoiding
3048         # issues with msys/win32 path conversion for MSVC parameters
3049         # such as -Fo<file> or -out:<file>.
3050         TMPDIR=.
3051     ;;
3052     icl)
3053         cc_default="icl"
3054         ld_default="xilink"
3055         nm_default="dumpbin -symbols"
3056         ar_default="xilib"
3057         target_os_default="win32"
3058         TMPDIR=.
3059     ;;
3060     gcov)
3061         add_cflags  -fprofile-arcs -ftest-coverage
3062         add_ldflags -fprofile-arcs -ftest-coverage
3063     ;;
3064     llvm-cov)
3065         add_cflags -fprofile-arcs -ftest-coverage
3066         add_ldflags --coverage
3067     ;;
3068     hardened)
3069         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3070         add_cflags   -fno-strict-overflow -fstack-protector-all
3071         add_ldflags  -Wl,-z,relro -Wl,-z,now
3072     ;;
3073     ?*)
3074         die "Unknown toolchain $toolchain"
3075     ;;
3076 esac
3077
3078 if test -n "$cross_prefix"; then
3079     test -n "$arch" && test -n "$target_os" ||
3080         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3081     enable cross_compile
3082 fi
3083
3084 ar_default="${cross_prefix}${ar_default}"
3085 cc_default="${cross_prefix}${cc_default}"
3086 objcc_default="${cross_prefix}${objcc_default}"
3087 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3088 nm_default="${cross_prefix}${nm_default}"
3089 pkg_config_default="${cross_prefix}${pkg_config_default}"
3090 ranlib="${cross_prefix}${ranlib}"
3091 strip="${cross_prefix}${strip}"
3092
3093 sysinclude_default="${sysroot}/usr/include"
3094
3095 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3096 enabled cross_compile || host_cc_default=$cc
3097 set_default host_cc
3098
3099 if ! $pkg_config --version >/dev/null 2>&1; then
3100     warn "$pkg_config not found, library detection may fail."
3101     pkg_config=false
3102 fi
3103
3104 exesuf() {
3105     case $1 in
3106         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3107     esac
3108 }
3109
3110 EXESUF=$(exesuf $target_os)
3111 HOSTEXESUF=$(exesuf $host_os)
3112
3113 # set temporary file name
3114 : ${TMPDIR:=$TEMPDIR}
3115 : ${TMPDIR:=$TMP}
3116 : ${TMPDIR:=/tmp}
3117
3118 if ! test_cmd mktemp -u XXXXXX; then
3119     # simple replacement for missing mktemp
3120     # NOT SAFE FOR GENERAL USE
3121     mktemp(){
3122         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3123         echo "$tmpname"
3124         mkdir "$tmpname"
3125     }
3126 fi
3127
3128 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3129     die "Unable to create temporary directory in $TMPDIR."
3130
3131 tmpfile(){
3132     tmp="${AVTMPDIR}/test"$2
3133     (set -C; exec > $tmp) 2> /dev/null ||
3134         die "Unable to create temporary file in $AVTMPDIR."
3135     eval $1=$tmp
3136 }
3137
3138 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3139 trap 'exit 2' INT
3140
3141 tmpfile TMPASM .asm
3142 tmpfile TMPC   .c
3143 tmpfile TMPE   $EXESUF
3144 tmpfile TMPH   .h
3145 tmpfile TMPO   .o
3146 tmpfile TMPS   .S
3147 tmpfile TMPSH  .sh
3148 tmpfile TMPV   .ver
3149
3150 unset -f mktemp
3151
3152 chmod +x $TMPE
3153
3154 # make sure we can execute files in $TMPDIR
3155 cat > $TMPSH 2>> $logfile <<EOF
3156 #! /bin/sh
3157 EOF
3158 chmod +x $TMPSH >> $logfile 2>&1
3159 if ! $TMPSH >> $logfile 2>&1; then
3160     cat <<EOF
3161 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3162 variable to another directory and make sure that it is not mounted noexec.
3163 EOF
3164     die "Sanity test failed."
3165 fi
3166
3167 armasm_flags(){
3168     for flag; do
3169         case $flag in
3170             # Filter out MSVC cl.exe options from cflags that shouldn't
3171             # be passed to gas-preprocessor
3172             -M[TD]*)                                            ;;
3173             *)                  echo $flag                      ;;
3174         esac
3175    done
3176 }
3177
3178 cparser_flags(){
3179     for flag; do
3180         case $flag in
3181             -Wno-switch)             echo -Wno-switch-enum ;;
3182             -Wno-format-zero-length) ;;
3183             -Wdisabled-optimization) ;;
3184             -Wno-pointer-sign)       echo -Wno-other ;;
3185             *)                       echo $flag ;;
3186         esac
3187     done
3188 }
3189
3190 msvc_common_flags(){
3191     for flag; do
3192         case $flag in
3193             # In addition to specifying certain flags under the compiler
3194             # specific filters, they must be specified here as well or else the
3195             # generic catch all at the bottom will print the original flag.
3196             -Wall)                ;;
3197             -Wextra)              ;;
3198             -std=c99)             ;;
3199             # Common flags
3200             -fomit-frame-pointer) ;;
3201             -g)                   echo -Z7 ;;
3202             -fno-math-errno)      ;;
3203             -fno-common)          ;;
3204             -fno-signed-zeros)    ;;
3205             -fPIC)                ;;
3206             -mthumb)              ;;
3207             -march=*)             ;;
3208             -lz)                  echo zlib.lib ;;
3209             -lx264)               echo libx264.lib ;;
3210             -l*)                  echo ${flag#-l}.lib ;;
3211             -L*)                  echo -libpath:${flag#-L} ;;
3212             *)                    echo $flag ;;
3213         esac
3214     done
3215 }
3216
3217 msvc_flags(){
3218     msvc_common_flags "$@"
3219     for flag; do
3220         case $flag in
3221             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3222                                        -wd4554 ;;
3223             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3224                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3225                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3226                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3227         esac
3228     done
3229 }
3230
3231 icl_flags(){
3232     msvc_common_flags "$@"
3233     for flag; do
3234         case $flag in
3235             # Despite what Intel's documentation says -Wall, which is supported
3236             # on Windows, does enable remarks so disable them here.
3237             -Wall)                echo $flag -Qdiag-disable:remark ;;
3238             -std=c99)             echo -Qstd=c99 ;;
3239         esac
3240     done
3241 }
3242
3243 suncc_flags(){
3244     for flag; do
3245         case $flag in
3246             -march=*|-mcpu=*)
3247                 case "${flag#*=}" in
3248                     native)                   echo -xtarget=native       ;;
3249                     v9|niagara)               echo -xarch=sparc          ;;
3250                     ultrasparc)               echo -xarch=sparcvis       ;;
3251                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3252                     i586|pentium)             echo -xchip=pentium        ;;
3253                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3254                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3255                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3256                     pentium4*)          echo -xtarget=pentium4           ;;
3257                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3258                     *-sse3)             echo -xarch=sse3                 ;;
3259                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3260                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3261                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3262                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3263                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3264                     k8|opteron|athlon64|athlon-fx)
3265                                                echo -xarch=sse2a         ;;
3266                     athlon*)                   echo -xarch=pentium_proa  ;;
3267                 esac
3268                 ;;
3269             -std=c99)             echo -xc99              ;;
3270             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3271             -fPIC)                echo -KPIC -xcode=pic32 ;;
3272             -W*,*)                echo $flag              ;;
3273             -f*-*|-W*|-mimpure-text)                      ;;
3274             -shared)              echo -G                 ;;
3275             *)                    echo $flag              ;;
3276         esac
3277     done
3278 }
3279
3280 probe_cc(){
3281     pfx=$1
3282     _cc=$2
3283
3284     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3285     unset _ld_o _ldflags _ld_lib _ld_path
3286     unset _depflags _DEPCMD _DEPFLAGS
3287     _flags_filter=echo
3288
3289     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3290         _type=llvm_gcc
3291         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3292         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3293         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3294         _cflags_speed='-O3'
3295         _cflags_size='-Os'
3296     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3297         _type=gcc
3298         gcc_version=$($_cc --version | head -n1)
3299         gcc_basever=$($_cc -dumpversion)
3300         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3301         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3302         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3303         if ! $_cc -dumpversion | grep -q '^2\.'; then
3304             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3305         fi
3306         _cflags_speed='-O3'
3307         _cflags_size='-Os'
3308     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3309         _type=icc
3310         _ident=$($_cc --version | head -n1)
3311         _depflags='-MMD'
3312         _cflags_speed='-O3'
3313         _cflags_size='-Os'
3314         _cflags_noopt='-O1'
3315     elif $_cc -v 2>&1 | grep -q xlc; then
3316         _type=xlc
3317         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3318         _cflags_speed='-O5'
3319         _cflags_size='-O5 -qcompact'
3320     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3321         test -d "$sysroot" || die "No valid sysroot specified."
3322         _type=armcc
3323         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3324         armcc_conf="$PWD/armcc.conf"
3325         $_cc --arm_linux_configure                 \
3326              --arm_linux_config_file="$armcc_conf" \
3327              --configure_sysroot="$sysroot"        \
3328              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3329              die "Error creating armcc configuration file."
3330         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3331         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3332         as_default="${cross_prefix}gcc"
3333         _depflags='-MMD'
3334         _cflags_speed='-O3'
3335         _cflags_size='-Os'
3336     elif $_cc -v 2>&1 | grep -q clang; then
3337         _type=clang
3338         _ident=$($_cc --version 2>/dev/null | head -n1)
3339         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3340         _cflags_speed='-O3'
3341         _cflags_size='-Os'
3342     elif $_cc -V 2>&1 | grep -q Sun; then
3343         _type=suncc
3344         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3345         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3346         _DEPFLAGS='-xM1 -xc99'
3347         _ldflags='-std=c99'
3348         _cflags_speed='-O5'
3349         _cflags_size='-O5 -xspace'
3350         _flags_filter=suncc_flags
3351     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3352         _type=pathscale
3353         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3354         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3355         _cflags_speed='-O2'
3356         _cflags_size='-Os'
3357         _flags_filter='filter_out -Wdisabled-optimization'
3358     elif $_cc -v 2>&1 | grep -q Open64; then
3359         _type=open64
3360         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3361         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3362         _cflags_speed='-O2'
3363         _cflags_size='-Os'
3364         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3365     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3366         _type=armasm
3367         _ident=$($_cc | head -n1)
3368         # 4509: "This form of conditional instruction is deprecated"
3369         _flags="-nologo -ignore 4509"
3370         _flags_filter=armasm_flags
3371     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3372         _type=msvc
3373         _ident=$($_cc 2>&1 | head -n1)
3374         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3375         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3376         _cflags_speed="-O2"
3377         _cflags_size="-O1"
3378         _cflags_noopt="-O1"
3379         if $_cc -nologo- 2>&1 | grep -q Linker; then
3380             _ld_o='-out:$@'
3381         else
3382             _ld_o='-Fe$@'
3383         fi
3384         _cc_o='-Fo$@'
3385         _cc_e='-P -Fi$@'
3386         _flags_filter=msvc_flags
3387         _ld_lib='lib%.a'
3388         _ld_path='-libpath:'
3389         _flags='-nologo'
3390     elif $_cc 2>&1 | grep -q Intel; then
3391         _type=icl
3392         _ident=$($_cc 2>&1 | head -n1)
3393         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3394         # Not only is O3 broken on 13.x+ but it is slower on all previous
3395         # versions (tested) as well.
3396         _cflags_speed="-O2"
3397         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3398         if $_cc 2>&1 | grep -q Linker; then
3399             _ld_o='-out:$@'
3400         else
3401             _ld_o='-Fe$@'
3402         fi
3403         _cc_o='-Fo$@'
3404         _cc_e='-P'
3405         _flags_filter=icl_flags
3406         _ld_lib='lib%.a'
3407         _ld_path='-libpath:'
3408         # -Qdiag-error to make icl error when seeing certain unknown arguments
3409         _flags='-nologo -Qdiag-error:4044,10157'
3410         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3411         # with MSVC which enables it by default.
3412         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3413     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3414         # lld can emulate multiple different linkers; in ms link.exe mode,
3415         # the -? parameter gives the help output which contains an identifyable
3416         # string, while it gives an error in other modes.
3417         _type=lld-link
3418         # The link.exe mode doesn't have a switch for getting the version,
3419         # but we can force it back to gnu mode and get the version from there.
3420         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3421         _ld_o='-out:$@'
3422         _flags_filter=msvc_flags
3423         _ld_lib='lib%.a'
3424         _ld_path='-libpath:'
3425     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3426         _type=cparser
3427         _ident=$($_cc --version | head -n1)
3428         _depflags='-MMD'
3429         _cflags_speed='-O4'
3430         _cflags_size='-O2'
3431         _flags_filter=cparser_flags
3432     fi
3433
3434     eval ${pfx}_type=\$_type
3435     eval ${pfx}_ident=\$_ident
3436 }
3437
3438 set_ccvars(){
3439     eval ${1}_C=\${_cc_c-\${${1}_C}}
3440     eval ${1}_E=\${_cc_e-\${${1}_E}}
3441     eval ${1}_O=\${_cc_o-\${${1}_O}}
3442
3443     if [ -n "$_depflags" ]; then
3444         eval ${1}_DEPFLAGS=\$_depflags
3445     else
3446         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3447         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3448         eval DEP${1}FLAGS=\$_flags
3449     fi
3450 }
3451
3452 probe_cc cc "$cc"
3453 cflags_filter=$_flags_filter
3454 cflags_speed=$_cflags_speed
3455 cflags_size=$_cflags_size
3456 cflags_noopt=$_cflags_noopt
3457 add_cflags $_flags $_cflags
3458 cc_ldflags=$_ldflags
3459 set_ccvars CC
3460
3461 probe_cc hostcc "$host_cc"
3462 host_cflags_filter=$_flags_filter
3463 host_cflags_speed=$_cflags_speed
3464 add_host_cflags  $_flags $_cflags
3465 set_ccvars HOSTCC
3466
3467 test -n "$cc_type" && enable $cc_type ||
3468     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3469
3470 : ${as_default:=$cc}
3471 : ${objcc_default:=$cc}
3472 : ${dep_cc_default:=$cc}
3473 : ${ld_default:=$cc}
3474 : ${host_ld_default:=$host_cc}
3475 set_default ar as objcc dep_cc ld host_ld
3476
3477 probe_cc as "$as"
3478 asflags_filter=$_flags_filter
3479 add_asflags $_flags $_cflags
3480 set_ccvars AS
3481
3482 probe_cc objcc "$objcc"
3483 objcflags_filter=$_flags_filter
3484 add_objcflags $_flags $_cflags
3485 set_ccvars OBJC
3486
3487 probe_cc ld "$ld"
3488 ldflags_filter=$_flags_filter
3489 add_ldflags $_flags $_ldflags
3490 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3491 LD_O=${_ld_o-$LD_O}
3492 LD_LIB=${_ld_lib-$LD_LIB}
3493 LD_PATH=${_ld_path-$LD_PATH}
3494
3495 probe_cc hostld "$host_ld"
3496 host_ldflags_filter=$_flags_filter
3497 add_host_ldflags $_flags $_ldflags
3498 HOSTLD_O=${_ld_o-$HOSTLD_O}
3499
3500 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3501     probe_cc depcc "$dep_cc"
3502     CCDEP=${_DEPCMD:-$DEPCMD}
3503     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3504     DEPCCFLAGS=$_flags
3505 fi
3506
3507 if $ar 2>&1 | grep -q Microsoft; then
3508     arflags="-nologo"
3509     ar_o='-out:$@'
3510 else
3511     arflags="rc"
3512     ar_o='$@'
3513 fi
3514
3515 add_cflags $extra_cflags
3516 add_objcflags $extra_objcflags
3517 add_asflags $extra_cflags
3518
3519 if test -n "$sysroot"; then
3520     case "$cc_type" in
3521         gcc|llvm_gcc|clang)
3522             add_cppflags --sysroot="$sysroot"
3523             add_ldflags --sysroot="$sysroot"
3524         ;;
3525     esac
3526 fi
3527
3528 if test "$cpu" = host; then
3529     enabled cross_compile &&
3530         die "--cpu=host makes no sense when cross-compiling."
3531
3532     case "$cc_type" in
3533         gcc|llvm_gcc)
3534             check_native(){
3535                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3536                 sed -n "/cc1.*$1=/{
3537                             s/.*$1=\\([^ ]*\\).*/\\1/
3538                             p
3539                             q
3540                         }" $TMPE
3541             }
3542             cpu=$(check_native -march || check_native -mcpu)
3543         ;;
3544     esac
3545
3546     test "${cpu:-host}" = host &&
3547         die "--cpu=host not supported with compiler $cc"
3548 fi
3549
3550 # Deal with common $arch aliases
3551 case "$arch" in
3552     aarch64|arm64)
3553         arch="aarch64"
3554     ;;
3555     arm*)
3556         arch="arm"
3557     ;;
3558     mips*|IP*)
3559         case "$arch" in
3560         *el)
3561             add_cppflags -EL
3562             add_ldflags -EL
3563         ;;
3564         *eb)
3565             add_cppflags -EB
3566             add_ldflags -EB
3567         ;;
3568         esac
3569         arch="mips"
3570     ;;
3571     parisc*|hppa*)
3572         arch="parisc"
3573     ;;
3574     "Power Macintosh"|ppc*|powerpc*)
3575         arch="ppc"
3576     ;;
3577     s390|s390x)
3578         arch="s390"
3579     ;;
3580     sh4|sh)
3581         arch="sh4"
3582     ;;
3583     sun4u|sparc*)
3584         arch="sparc"
3585     ;;
3586     tilegx|tile-gx)
3587         arch="tilegx"
3588     ;;
3589     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3590         arch="x86"
3591     ;;
3592 esac
3593
3594 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3595 enable $arch
3596
3597 # Add processor-specific flags
3598 if enabled aarch64; then
3599
3600     case $cpu in
3601         armv*)
3602             cpuflags="-march=$cpu"
3603         ;;
3604         *)
3605             cpuflags="-mcpu=$cpu"
3606         ;;
3607     esac
3608
3609 elif enabled alpha; then
3610
3611     cpuflags="-mcpu=$cpu"
3612
3613 elif enabled arm; then
3614
3615     check_arm_arch() {
3616         test_cpp_condition stddef.h \
3617             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3618             $cpuflags
3619     }
3620
3621     probe_arm_arch() {
3622         if   check_arm_arch 4;        then echo armv4
3623         elif check_arm_arch 4T;       then echo armv4t
3624         elif check_arm_arch 5;        then echo armv5
3625         elif check_arm_arch 5E;       then echo armv5e
3626         elif check_arm_arch 5T;       then echo armv5t
3627         elif check_arm_arch 5TE;      then echo armv5te
3628         elif check_arm_arch 5TEJ;     then echo armv5te
3629         elif check_arm_arch 6;        then echo armv6
3630         elif check_arm_arch 6J;       then echo armv6j
3631         elif check_arm_arch 6K;       then echo armv6k
3632         elif check_arm_arch 6Z;       then echo armv6z
3633         elif check_arm_arch 6ZK;      then echo armv6zk
3634         elif check_arm_arch 6T2;      then echo armv6t2
3635         elif check_arm_arch 7;        then echo armv7
3636         elif check_arm_arch 7A  7_A;  then echo armv7-a
3637         elif check_arm_arch 7S;       then echo armv7-a
3638         elif check_arm_arch 7R  7_R;  then echo armv7-r
3639         elif check_arm_arch 7M  7_M;  then echo armv7-m
3640         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3641         elif check_arm_arch 8A  8_A;  then echo armv8-a
3642         fi
3643     }
3644
3645     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3646
3647     case $cpu in
3648         armv*)
3649             cpuflags="-march=$cpu"
3650             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3651         ;;
3652         *)
3653             cpuflags="-mcpu=$cpu"
3654             case $cpu in
3655                 cortex-a*)                               subarch=armv7a  ;;
3656                 cortex-r*)                               subarch=armv7r  ;;
3657                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3658                 arm11*)                                  subarch=armv6   ;;
3659                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3660                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3661                 *)                             subarch=$(probe_arm_arch) ;;
3662             esac
3663         ;;
3664     esac
3665
3666     case "$subarch" in
3667         armv5t*)    enable fast_clz                ;;
3668         armv[6-8]*) enable fast_clz fast_unaligned ;;
3669     esac
3670
3671 elif enabled avr32; then
3672
3673     case $cpu in
3674         ap7[02]0[0-2])
3675             subarch="avr32_ap"
3676             cpuflags="-mpart=$cpu"
3677         ;;
3678         ap)
3679             subarch="avr32_ap"
3680             cpuflags="-march=$cpu"
3681         ;;
3682         uc3[ab]*)
3683             subarch="avr32_uc"
3684             cpuflags="-mcpu=$cpu"
3685         ;;
3686         uc)
3687             subarch="avr32_uc"
3688             cpuflags="-march=$cpu"
3689         ;;
3690     esac
3691
3692 elif enabled bfin; then
3693
3694     cpuflags="-mcpu=$cpu"
3695
3696 elif enabled mips; then
3697
3698     cpuflags="-march=$cpu"
3699
3700 elif enabled ppc; then
3701
3702     disable ldbrx
3703
3704     case $(tolower $cpu) in
3705         601|ppc601|powerpc601)
3706             cpuflags="-mcpu=601"
3707             disable altivec
3708         ;;
3709         603*|ppc603*|powerpc603*)
3710             cpuflags="-mcpu=603"
3711             disable altivec
3712         ;;
3713         604*|ppc604*|powerpc604*)
3714             cpuflags="-mcpu=604"
3715             disable altivec
3716         ;;
3717         g3|75*|ppc75*|powerpc75*)
3718             cpuflags="-mcpu=750"
3719             disable altivec
3720         ;;
3721         g4|745*|ppc745*|powerpc745*)
3722             cpuflags="-mcpu=7450"
3723             disable vsx
3724         ;;
3725         74*|ppc74*|powerpc74*)
3726             cpuflags="-mcpu=7400"
3727             disable vsx
3728         ;;
3729         g5|970|ppc970|powerpc970)
3730             cpuflags="-mcpu=970"
3731             disable vsx
3732         ;;
3733         power[3-6]*)
3734             cpuflags="-mcpu=$cpu"
3735             disable vsx
3736         ;;
3737         power[7-8]*)
3738             cpuflags="-mcpu=$cpu"
3739             enable ldbrx
3740         ;;
3741         cell)
3742             cpuflags="-mcpu=cell"
3743             enable ldbrx
3744             disable vsx
3745         ;;
3746         e500mc)
3747             cpuflags="-mcpu=e500mc"
3748             disable altivec
3749         ;;
3750         e500v2)
3751             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3752             disable altivec
3753             disable dcbzl
3754         ;;
3755         e500)
3756             cpuflags="-mcpu=8540 -mhard-float"
3757             disable altivec
3758             disable dcbzl
3759         ;;
3760     esac
3761
3762 elif enabled sparc; then
3763
3764     case $cpu in
3765         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3766             cpuflags="-mcpu=$cpu"
3767         ;;
3768         ultrasparc*|niagara[234])
3769             cpuflags="-mcpu=$cpu"
3770         ;;
3771     esac
3772
3773 elif enabled x86; then
3774
3775     case $cpu in
3776         i[345]86|pentium)
3777             cpuflags="-march=$cpu"
3778             disable i686
3779             disable mmx
3780         ;;
3781         # targets that do NOT support nopl and conditional mov (cmov)
3782         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3783             cpuflags="-march=$cpu"
3784             disable i686
3785         ;;
3786         # targets that do support nopl and conditional mov (cmov)
3787         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3788             cpuflags="-march=$cpu"
3789             enable i686
3790             enable fast_cmov
3791         ;;
3792         # targets that do support conditional mov but on which it's slow
3793         pentium4|pentium4m|prescott|nocona)
3794             cpuflags="-march=$cpu"
3795             enable i686
3796             disable fast_cmov
3797         ;;
3798     esac
3799
3800 fi
3801
3802 if [ "$cpu" != generic ]; then
3803     add_cflags  $cpuflags
3804     add_asflags $cpuflags
3805     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3806 fi
3807
3808 # compiler sanity check
3809 test_exec <<EOF
3810 int main(void){ return 0; }
3811 EOF
3812 if test "$?" != 0; then
3813     echo "$cc is unable to create an executable file."
3814     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3815         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3816         echo "Only do this if you know what cross compiling means."
3817     fi
3818     die "C compiler test failed."
3819 fi
3820
3821 add_cppflags -D_ISOC99_SOURCE
3822
3823 # some compilers silently accept -std=c11, so we also need to check that the
3824 # version macro is defined properly
3825 test_cpp_condition stdlib.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
3826     add_cflags -std=c11 ||
3827     check_cflags -std=c99
3828
3829 check_cppflags -D_FILE_OFFSET_BITS=64
3830 check_cppflags -D_LARGEFILE_SOURCE
3831
3832 add_host_cppflags -D_ISOC99_SOURCE
3833 check_host_cflags -std=c99
3834 check_host_cflags -Wall
3835 check_host_cflags $host_cflags_speed
3836
3837 check_64bit(){
3838     arch32=$1
3839     arch64=$2
3840     expr=${3:-'sizeof(void *) > 4'}
3841     test_code cc "" "int test[2*($expr) - 1]" &&
3842         subarch=$arch64 || subarch=$arch32
3843     enable $subarch
3844 }
3845
3846 case "$arch" in
3847     aarch64|alpha|ia64)
3848         enabled shared && enable_weak pic
3849     ;;
3850     mips)
3851         check_64bit mips mips64 '_MIPS_SIM > 1'
3852         enabled shared && enable_weak pic
3853     ;;
3854     parisc)
3855         check_64bit parisc parisc64
3856         enabled shared && enable_weak pic
3857     ;;
3858     ppc)
3859         check_64bit ppc ppc64
3860         enabled shared && enable_weak pic
3861     ;;
3862     s390)
3863         check_64bit s390 s390x
3864         enabled shared && enable_weak pic
3865     ;;
3866     sparc)
3867         check_64bit sparc sparc64
3868         enabled shared && enable_weak pic
3869     ;;
3870     x86)
3871         check_64bit x86_32 x86_64
3872         if enabled x86_64; then
3873             enabled shared && enable_weak pic
3874             objformat=elf64
3875         fi
3876     ;;
3877 esac
3878
3879 # OS specific
3880 case $target_os in
3881     aix)
3882         SHFLAGS=-shared
3883         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3884         enabled shared && add_ldflags -Wl,-brtl
3885         arflags='-Xany -r -c'
3886         ;;
3887     android)
3888         disable symver
3889         enable section_data_rel_ro
3890         SLIB_INSTALL_NAME='$(SLIBNAME)'
3891         SLIB_INSTALL_LINKS=
3892         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3893         ;;
3894     haiku)
3895         prefix_default="/boot/common"
3896         network_extralibs="-lnetwork"
3897         host_extralibs=
3898         ;;
3899     sunos)
3900         SHFLAGS='-shared -Wl,-h,$$(@F)'
3901         enabled x86 && append SHFLAGS -mimpure-text
3902         network_extralibs="-lsocket -lnsl"
3903         # When using suncc to build, the Solaris linker will mark
3904         # an executable with each instruction set encountered by
3905         # the Solaris assembler.  As our libraries contain their own
3906         # guards for processor-specific code, instead suppress
3907         # generation of the HWCAPS ELF section on Solaris x86 only.
3908         enabled_all suncc x86 &&
3909             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3910             add_ldflags -Wl,-M,mapfile
3911         nm_default='nm -P -g'
3912         version_script='-M'
3913         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3914         ;;
3915     netbsd)
3916         disable symver
3917         oss_indev_extralibs="-lossaudio"
3918         ;;
3919     openbsd|bitrig)
3920         disable symver
3921         SHFLAGS='-shared'
3922         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3923         SLIB_INSTALL_LINKS=
3924         oss_indev_extralibs="-lossaudio"
3925         ;;
3926     dragonfly)
3927         disable symver
3928         ;;
3929     freebsd)
3930         ;;
3931     bsd/os)
3932         add_extralibs -lpoll -lgnugetopt
3933         ;;
3934     darwin)
3935         enabled ppc && add_asflags -force_cpusubtype_ALL
3936         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3937         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3938         add_ldflags -Wl,-dynamic,-search_paths_first
3939         check_cflags -Werror=partial-availability
3940         SLIBSUF=".dylib"
3941         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3942         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3943         enabled x86_64 && objformat="macho64" || objformat="macho32"
3944         enabled_any pic shared ||
3945             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3946         check_header dispatch/dispatch.h &&
3947             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3948         if test -n "$sysroot"; then
3949             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3950             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
3951         fi
3952         ;;
3953     msys*)
3954         die "Native MSYS builds are discouraged, please use the MINGW environment."
3955         ;;
3956     mingw32*|mingw64*)
3957         target_os=mingw32
3958         LIBTARGET=i386
3959         if enabled x86_64; then
3960             LIBTARGET="i386:x86-64"
3961         elif enabled arm; then
3962             LIBTARGET="arm"
3963         elif enabled aarch64; then
3964             LIBTARGET="arm64"
3965         fi
3966         if enabled shared; then
3967             # Cannot build both shared and static libs when using dllimport.
3968             disable static
3969         fi
3970         check_ldflags -Wl,--nxcompat
3971         check_ldflags -Wl,--dynamicbase
3972         shlibdir_default="$bindir_default"
3973         SLIBPREF=""
3974         SLIBSUF=".dll"
3975         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3976         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3977         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3978         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3979         SLIB_INSTALL_LINKS=
3980         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3981         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3982         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3983         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
3984         enabled x86_64 && objformat="win64" || objformat="win32"
3985         dlltool="${cross_prefix}dlltool"
3986         ranlib=:
3987         enable dos_paths
3988         ;;
3989     win32|win64)
3990         disable symver
3991         if enabled shared; then
3992             # Link to the import library instead of the normal static library
3993             # for shared libs.
3994             LD_LIB='%.lib'
3995             # Cannot build both shared and static libs with MSVC or icl.
3996             disable static
3997         fi
3998         shlibdir_default="$bindir_default"
3999         SLIBPREF=""
4000         SLIBSUF=".dll"
4001         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4002         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4003         SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4004         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4005         SLIB_INSTALL_LINKS=
4006         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4007         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4008         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4009         enabled x86_64 && objformat="win64" || objformat="win32"
4010         ranlib=:
4011         enable dos_paths
4012         ;;
4013     cygwin*)
4014         target_os=cygwin
4015         shlibdir_default="$bindir_default"
4016         SLIBPREF="cyg"
4017         SLIBSUF=".dll"
4018         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4019         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4020         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4021         SLIB_INSTALL_LINKS=
4022         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4023         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4024         enabled x86_64 && objformat="win64" || objformat="win32"
4025         enable dos_paths
4026         ;;
4027     *-dos|freedos|opendos)
4028         network_extralibs="-lsocket"
4029         objformat="coff"
4030         enable dos_paths
4031         add_cppflags -U__STRICT_ANSI__
4032         ;;
4033     linux)
4034         enable section_data_rel_ro
4035         ;;
4036     irix*)
4037         target_os=irix
4038         ranlib="echo ignoring ranlib"
4039         ;;
4040     os/2*)
4041         ln_s="cp -f"
4042         objformat="aout"
4043         add_cppflags -D_GNU_SOURCE
4044         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4045         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4046         LIBSUF="_s.a"
4047         SLIBPREF=""
4048         SLIBSUF=".dll"
4049         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4050         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4051         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4052             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4053             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4054             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4055             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4056         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4057             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4058         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4059         enable dos_paths
4060         ;;
4061     gnu/kfreebsd)
4062         add_cppflags -D_BSD_SOURCE
4063         ;;
4064     gnu)
4065         ;;
4066     qnx)
4067         add_cppflags -D_QNX_SOURCE
4068         network_extralibs="-lsocket"
4069         ;;
4070     symbian)
4071         SLIBSUF=".dll"
4072         enable dos_paths
4073         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4074         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4075         add_ldflags -Wl,--target1-abs,--no-undefined \
4076                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4077                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4078         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4079                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4080                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4081         ;;
4082     minix)
4083         ;;
4084     none)
4085         ;;
4086     *)
4087         die "Unknown OS '$target_os'."
4088         ;;
4089 esac
4090
4091 # determine libc flavour
4092
4093 probe_libc(){
4094     pfx=$1
4095     pfx_no_=${pfx%_}
4096     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4097     if test_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4098         eval ${pfx}libc_type=uclibc
4099         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4100     elif test_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4101         eval ${pfx}libc_type=glibc
4102         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4103     # MinGW headers can be installed on Cygwin, so check for newlib first.
4104     elif test_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4105         eval ${pfx}libc_type=newlib
4106         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4107     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4108     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4109         eval ${pfx}libc_type=mingw64
4110         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4111         eval test \$${pfx_no_}cc_type = "gcc" &&
4112             add_${pfx}cppflags -D__printf__=__gnu_printf__
4113     elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4114          test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4115         eval ${pfx}libc_type=mingw32
4116         test_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4117             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4118             die "ERROR: MinGW32 runtime version must be >= 3.15."
4119         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4120         test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4121             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4122         test_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4123             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4124         eval test \$${pfx_no_}cc_type = "gcc" &&
4125             add_${pfx}cppflags -D__printf__=__gnu_printf__
4126     elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4127         eval ${pfx}libc_type=msvcrt
4128         if test_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4129             if [ "$pfx" = host_ ]; then
4130                 add_host_cppflags -Dsnprintf=_snprintf
4131             else
4132                 add_compat strtod.o strtod=avpriv_strtod
4133                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4134                                              _snprintf=avpriv_snprintf  \
4135                                              vsnprintf=avpriv_vsnprintf
4136             fi
4137         fi
4138         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4139         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4140         # 0x601 by default unless something else is set by the user.
4141         # This can easily lead to us detecting functions only present
4142         # in such new versions and producing binaries requiring windows 7.0.
4143         # Therefore explicitly set the default to XP unless the user has
4144         # set something else on the command line.
4145         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4146         # family. For these cases, configure is free to use any functions
4147         # found in the SDK headers by default. (Alternatively, we could force
4148         # _WIN32_WINNT to 0x0602 in that case.)
4149         test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4150             { test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4151 #ifdef WINAPI_FAMILY
4152 #include <winapifamily.h>
4153 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4154 #error not desktop
4155 #endif
4156 #endif
4157 EOF
4158         if [ "$pfx" = "" ]; then
4159             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4160         fi
4161     elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4162         eval ${pfx}libc_type=klibc
4163     elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4164         eval ${pfx}libc_type=bionic
4165     elif test_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4166         eval ${pfx}libc_type=solaris
4167         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4168     else
4169         eval ${pfx}libc_type=default
4170         add_${pfx}cppflags -D_DEFAULT_SOURCE
4171     fi
4172     eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
4173 }
4174
4175 probe_libc
4176 probe_libc host_
4177
4178 # hacks for compiler/libc/os combinations
4179
4180 case $libc_type in
4181     bionic)
4182         add_compat strtod.o strtod=avpriv_strtod
4183         ;;
4184 esac
4185
4186 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4187     add_cppflags '-I\$(SRC_PATH)/compat/float'
4188
4189 test_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4190
4191 set_default $PATHS_LIST
4192 set_default nm
4193
4194 disabled optimizations || check_cflags -fomit-frame-pointer
4195
4196 enable_weak_pic() {
4197     disabled pic && return
4198     enable pic
4199     add_cppflags -DPIC
4200     case "$target_os" in
4201     mingw*|cygwin*|win*)
4202         ;;
4203     *)
4204         add_cflags -fPIC
4205         add_asflags -fPIC
4206         ;;
4207     esac
4208 }
4209
4210 enabled pic && enable_weak_pic
4211
4212 test_cc <<EOF || die "Symbol mangling check failed."
4213 int ff_extern;
4214 EOF
4215 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4216 extern_prefix=${sym%%ff_extern*}
4217
4218 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4219
4220 for restrict_keyword in restrict __restrict__ __restrict ""; do
4221     test_code cc "" "char * $restrict_keyword p" && break
4222 done
4223
4224 check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
4225
4226 # The global variable ensures the bits appear unchanged in the object file.
4227 test_cc <<EOF || die "endian test failed"
4228 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4229 EOF
4230 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4231
4232 check_gas() {
4233     log "check_gas using '$as' as AS"
4234     # :vararg is used on aarch64, arm and ppc altivec
4235     test_as <<EOF || return 1
4236 .macro m n, y:vararg=0
4237 \n: .int \y
4238 .endm
4239 m x
4240 EOF
4241     # .altmacro is only used in arm asm
4242     ! enabled arm || check_as gnu_as ".altmacro"
4243 }
4244
4245 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4246     nogas=:
4247     enabled_any arm aarch64 && nogas=die
4248     enabled_all ppc altivec && nogas=warn
4249     as_noop=-v
4250
4251     case $as_type in
4252         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4253         gcc)  gaspp_as_type=gas ;;
4254         *)    gaspp_as_type=$as_type ;;
4255     esac
4256
4257     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4258
4259     test_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4260         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4261
4262     if ! check_gas ; then
4263         as=${gas:=$as}
4264         check_gas || \
4265             $nogas "GNU assembler not found, install/update gas-preprocessor"
4266     fi
4267
4268     check_as as_func ".func test
4269                       .endfunc"
4270 fi
4271
4272 check_inline_asm inline_asm_labels '"1:\n"'
4273
4274 if enabled aarch64; then
4275     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4276     # internal assembler in clang 3.3 does not support this instruction
4277     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4278     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4279
4280     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4281
4282 elif enabled alpha; then
4283
4284     check_cflags -mieee
4285
4286 elif enabled arm; then
4287
4288     enabled msvc && check_cpp_condition thumb stddef.h "defined _M_ARMT"
4289     test_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4290     enabled thumb && check_cflags -mthumb || check_cflags -marm
4291
4292     if check_cpp_condition vfp_args stddef.h "defined __ARM_PCS_VFP"; then
4293         :
4294     elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4295         :
4296     elif ! test_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4297         case "${cross_prefix:-$cc}" in
4298             *hardfloat*) enable vfp_args; fpabi=vfp ;;
4299             *) check_ld vfp_args <<EOF && fpabi=vfp || fpabi=soft ;;
4300 __asm__ (".eabi_attribute 28, 1");
4301 int main(void) { return 0; }
4302 EOF
4303         esac
4304         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4305     fi
4306
4307     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4308     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4309     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4310     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4311     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4312     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4313
4314     [ $target_os = linux ] || [ $target_os = android ] ||
4315         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4316             $ARCH_EXT_LIST_ARM
4317
4318     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4319
4320     check_as as_arch_directive ".arch armv7-a"
4321     check_as as_fpu_directive  ".fpu neon"
4322
4323     # llvm's integrated assembler supports .object_arch from llvm 3.5
4324     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4325         check_as as_object_arch ".object_arch armv4"
4326
4327     # MS armasm fails to assemble our PIC constructs
4328     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4329
4330 elif enabled mips; then
4331
4332     # make sure that only one instruction set is enabled
4333     disable $ARCH_EXT_LIST_MIPS
4334
4335     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4336
4337     if enabled mips64; then
4338         check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4339             check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4340                 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4341     else
4342         check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4343             check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4344                 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4345     fi
4346
4347 elif enabled parisc; then
4348
4349     if enabled gcc; then
4350         case $($cc -dumpversion) in
4351             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4352         esac
4353     fi
4354
4355 elif enabled ppc; then
4356
4357     enable local_aligned_8 local_aligned_16 local_aligned_32
4358
4359     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4360     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4361     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4362     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4363
4364     if enabled altivec; then
4365         check_cflags -maltivec -mabi=altivec
4366
4367         # check if our compiler supports Motorola AltiVec C API
4368         check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
4369                                     vector signed int v2 = (vector signed int) { 1 };
4370                                     v1 = vec_add(v1, v2);"
4371
4372         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4373     fi
4374
4375     if enabled vsx; then
4376         check_cflags -mvsx &&
4377         check_cc vsx altivec.h "int v[4] = { 0 };
4378                                 vector signed int v1 = vec_vsx_ld(0, v);"
4379     fi
4380
4381     if enabled power8; then
4382         check_cpp_condition power8 altivec.h "defined(_ARCH_PWR8)"
4383     fi
4384
4385 elif enabled x86; then
4386
4387     check_builtin rdtsc    intrin.h   "__rdtsc()"
4388     check_builtin mm_empty mmintrin.h "_mm_empty()"
4389
4390     enable local_aligned_8 local_aligned_16 local_aligned_32
4391
4392     # check whether EBP is available on x86
4393     # As 'i' is stored on the stack, this program will crash
4394     # if the base pointer is used to access it because the
4395     # base pointer is cleared in the inline assembly code.
4396     check_exec_crash <<EOF && enable ebp_available
4397 volatile int i=0;
4398 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4399 return i;
4400 EOF
4401
4402     # check whether EBX is available on x86
4403     check_inline_asm ebx_available '""::"b"(0)' &&
4404         check_inline_asm ebx_available '"":::"%ebx"'
4405
4406     # check whether xmm clobbers are supported
4407     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4408
4409     # check whether binutils is new enough to compile SSSE3/MMXEXT
4410     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4411     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4412
4413     probe_x86asm(){
4414         x86asmexe_probe=$1
4415         if test_cmd $x86asmexe_probe -v; then
4416             x86asmexe=$x86asmexe_probe
4417             x86asm_type=nasm
4418             x86asm_debug="-g -F dwarf"
4419             X86ASMDEP=
4420             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4421         elif test_cmd $x86asmexe_probe --version; then
4422             x86asmexe=$x86asmexe_probe
4423             x86asm_type=yasm
4424             x86asm_debug="-g dwarf2"
4425             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4426             X86ASM_DEPFLAGS=
4427         fi
4428         test_x86asm "movbe ecx, [5]" && enable x86asm
4429     }
4430
4431     if ! disabled_any asm mmx x86asm; then
4432         disable x86asm
4433         for program in $x86asmexe nasm yasm; do
4434             probe_x86asm $program && break
4435         done
4436         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4437         X86ASMFLAGS="-f $objformat"
4438         enabled pic               && append X86ASMFLAGS "-DPIC"
4439         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
4440         case "$objformat" in
4441             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4442         esac
4443
4444         test_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4445         test_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4446         test_x86asm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4447         test_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4448         test_x86asm "CPU amdnop"                      || disable cpunop
4449     fi
4450
4451     case "$cpu" in
4452         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4453             disable fast_clz
4454         ;;
4455     esac
4456
4457 fi
4458
4459 check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
4460
4461 check_ldflags -Wl,--as-needed
4462
4463 if ! disabled network; then
4464     check_func getaddrinfo $network_extralibs
4465     check_func inet_aton $network_extralibs
4466
4467     check_type netdb.h "struct addrinfo"
4468     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4469     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4470     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4471     check_type poll.h "struct pollfd"
4472     check_type netinet/sctp.h "struct sctp_event_subscribe"
4473     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4474     check_type netinet/in.h "struct sockaddr_in6"
4475     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4476     check_type "sys/types.h sys/socket.h" socklen_t
4477
4478     # Prefer arpa/inet.h over winsock2
4479     if check_header arpa/inet.h ; then
4480         check_func closesocket
4481     elif check_header winsock2.h ; then
4482         check_func_headers winsock2.h closesocket -lws2 &&
4483             network_extralibs="-lws2" ||
4484         { check_func_headers winsock2.h closesocket -lws2_32 &&
4485             network_extralibs="-lws2_32"; } || disable winsock2_h network
4486         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4487
4488         check_type ws2tcpip.h socklen_t
4489         check_type ws2tcpip.h "struct addrinfo"
4490         check_type ws2tcpip.h "struct group_source_req"
4491         check_type ws2tcpip.h "struct ip_mreq_source"
4492         check_type ws2tcpip.h "struct ipv6_mreq"
4493         check_type winsock2.h "struct pollfd"
4494         check_struct winsock2.h "struct sockaddr" sa_len
4495         check_type ws2tcpip.h "struct sockaddr_in6"
4496         check_type ws2tcpip.h "struct sockaddr_storage"
4497     else
4498         disable network
4499     fi
4500 fi
4501
4502 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4503 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4504 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4505 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4506
4507 case "$custom_allocator" in
4508     jemalloc)
4509         # jemalloc by default does not use a prefix
4510         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4511     ;;
4512     tcmalloc)
4513         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
4514         malloc_prefix=tc_
4515     ;;
4516 esac
4517
4518 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4519 check_func  ${malloc_prefix}memalign            && enable memalign
4520 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4521
4522 test_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4523     { check_lib clock_gettime time.h clock_gettime ||
4524       check_lib clock_gettime time.h clock_gettime -lrt; }
4525
4526 check_func  fcntl
4527 check_func  gethrtime
4528 check_func  getopt
4529 check_func  getrusage
4530 check_func  gettimeofday
4531 check_func  gmtime_r
4532 check_func  isatty
4533 check_func  localtime_r
4534 check_func  mkstemp
4535 check_func  mmap
4536 check_func  mprotect
4537 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4538 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4539 check_func  sched_getaffinity
4540 check_func  setrlimit
4541 check_func  strerror_r
4542 check_func  sysconf
4543 check_func  sysctl
4544 check_func  usleep
4545
4546 check_func_headers io.h setmode
4547 check_func_headers mach/mach_time.h mach_absolute_time
4548 check_func_headers stdlib.h getenv
4549
4550 check_func_headers windows.h GetProcessAffinityMask
4551 check_func_headers windows.h GetProcessTimes
4552 check_func_headers windows.h GetSystemTimeAsFileTime
4553 check_func_headers windows.h LoadLibrary
4554 check_func_headers windows.h MapViewOfFile
4555 check_func_headers windows.h SetConsoleTextAttribute
4556 check_func_headers windows.h Sleep
4557 check_func_headers windows.h VirtualAlloc
4558 check_struct windows.h "CONDITION_VARIABLE" Ptr
4559
4560 check_header direct.h
4561 check_header dxgidebug.h
4562 check_header dxva.h
4563 check_header dxva2api.h
4564 check_header io.h
4565 check_header malloc.h
4566 check_header poll.h
4567 check_header sys/param.h
4568 check_header sys/resource.h
4569 check_header sys/select.h
4570 check_header sys/time.h
4571 check_header sys/un.h
4572 check_header unistd.h
4573 check_header valgrind/valgrind.h
4574 check_header VideoDecodeAcceleration/VDADecoder.h
4575 check_header windows.h
4576
4577 # it seems there are versions of clang in some distros that try to use the
4578 # gcc headers, which explodes for stdatomic
4579 # so we also check that atomics actually work here
4580 check_builtin stdatomic stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4581
4582 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
4583 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
4584 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
4585 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
4586
4587 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4588
4589 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
4590 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
4591 check_struct "cuviddec.h" "CUVIDDECODECREATEINFO" bitDepthMinus8
4592
4593 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4594 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4595 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4596
4597 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4598 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4599 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4600 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4601 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4602 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4603 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4604 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
4605 check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
4606
4607 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4608
4609 if ! disabled w32threads && ! enabled pthreads; then
4610     check_lib w32threads "windows.h process.h" _beginthreadex
4611 fi
4612
4613 # check for some common methods of building with pthread support
4614 # do this before the optional library checks as some of them require pthreads
4615 if ! disabled pthreads && ! enabled w32threads; then
4616     if check_lib pthreads pthread.h pthread_join -pthread; then
4617         add_cflags -pthread
4618     elif check_lib pthreads pthread.h pthread_join -pthreads; then
4619         add_cflags -pthreads
4620     elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4621         :
4622     elif check_lib pthreads pthread.h pthread_join -lpthread; then
4623         :
4624     elif check_func pthread_join; then
4625         enable pthreads
4626     fi
4627     enabled pthreads &&
4628         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
4629 fi
4630
4631 disabled  zlib || check_lib  zlib  zlib.h      zlibVersion -lz
4632 disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4633
4634 # On some systems dynamic loading requires no extra linker flags
4635 check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
4636
4637 check_lib libm math.h sin -lm
4638
4639 atan2f_args=2
4640 ldexpf_args=2
4641 powf_args=2
4642
4643 for func in $MATH_FUNCS; do
4644     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
4645 done
4646
4647 # these are off by default, so fail if requested and not available
4648 enabled amf               && require_cpp_condition AMF/core/Version.h "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"
4649 enabled avisynth          && require_header avisynth/avisynth_c.h
4650 enabled avxsynth          && require_header avxsynth/avxsynth_c.h
4651 enabled cuda              && require cuda cuda.h cuInit -lcuda
4652 enabled cuvid             && require cuvid cuviddec.h cuvidCreateDecoder -lnvcuvid
4653 enabled frei0r            && require_header frei0r.h
4654 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init &&
4655                              check_lib gmp gmp.h mpz_export -lgmp
4656 enabled libaom            && require_pkg_config libaom "aom >= 0.1.0" aom/aom_codec.h aom_codec_version
4657 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
4658 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
4659 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4660 enabled libfaac           && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4661 enabled libfdk_aac        && require_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4662 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
4663 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4664 enabled libgsm            && require libgsm gsm.h gsm_create -lgsm
4665 enabled libhdcd           && require_pkg_config libhdcd libhdcd "hdcd/hdcd_simple.h" hdcd_new
4666 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4667 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4668 enabled libmfx            && require_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit
4669 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4670 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4671 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4672 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4673 enabled libopencv         && require_pkg_config libopencv opencv opencv/cv.h cvCreateImageHeader
4674 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
4675 enabled libopenjpeg       && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4676                                require_pkg_config libopenjpeg libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4677 enabled libopus           && require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
4678 enabled libpulse          && require_pkg_config libpulse libpulse-simple pulse/simple.h pa_simple_new
4679 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
4680 enabled libschroedinger   && require_pkg_config libschroedinger schroedinger-1.0 schroedinger/schro.h schro_init
4681 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy
4682 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
4683 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4684 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4685 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4686 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4687 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4688 enabled libvpx            && require_pkg_config libvpx "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version &&
4689                              { enabled libvpx_vp8_decoder &&
4690                                    check_pkg_config libvpx_vp8_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx
4691                                enabled libvpx_vp8_encoder &&
4692                                    check_pkg_config libvpx_vp8_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx
4693                                enabled libvpx_vp9_decoder &&
4694                                    check_pkg_config libvpx_vp9_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx
4695                                enabled libvpx_vp9_encoder &&
4696                                    check_pkg_config libvpx_vp9_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx
4697                                disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder &&
4698                                    die "libvpx enabled but no supported decoders/encoders found"
4699                              }
4700 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4701 enabled libwebp           && require_pkg_config libwebp libwebp webp/encode.h WebPGetEncoderVersion
4702 enabled libx264           && require_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
4703                              require_cpp_condition x264.h "X264_BUILD >= 118" &&
4704                              check_cpp_condition libx262 x264.h "X264_MPEG2"
4705 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
4706                              require_cpp_condition x265.h "X265_BUILD >= 57"
4707 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4708 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4709 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4710                                { ! enabled cross_compile &&
4711                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4712                                  add_ldflags -L/opt/vc/lib/ &&
4713                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4714                                die "ERROR: mmal not found" &&
4715                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4716 enabled nvenc             && require_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6"
4717 enabled omx               && require_header OMX_Core.h
4718 enabled omx_rpi           && { check_header OMX_Core.h ||
4719                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4720                                die "ERROR: OpenMAX IL headers not found"; } && enable omx
4721 enabled openssl           && { { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
4722                                  check_pkg_config openssl openssl openssl/ssl.h SSL_library_init; } ||
4723                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4724                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4725                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4726                                die "ERROR: openssl not found"; }
4727
4728 # SDL adds some CFLAGS that should not be part of the general CFLAGS.
4729 enabled avplay &&
4730     test_pkg_config sdl "sdl >= 1.2.1 sdl < 1.3.0" SDL_events.h SDL_PollEvent
4731
4732 check_header linux/fb.h
4733 check_header linux/videodev2.h
4734 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4735
4736 check_header AVFoundation/AVFoundation.h
4737
4738 check_header sys/videoio.h
4739
4740 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
4741 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
4742 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4743 # w32api 3.12 had it defined wrong
4744 check_cpp_condition vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
4745
4746 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4747 check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h"                   ||
4748     check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h"                 ||
4749     check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
4750     check_header "dev/ic/bt8xx.h"
4751
4752 check_header sys/soundcard.h
4753
4754 enabled alsa_indev &&
4755     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
4756
4757 enabled libjack &&
4758     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
4759
4760 enabled sndio_indev && check_lib sndio sndio.h sio_open -lsndio
4761
4762 if enabled libcdio; then
4763     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4764     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4765     die "ERROR: No usable libcdio/cdparanoia found"
4766 fi
4767
4768 if enabled libxcb; then
4769     require_pkg_config libxcb xcb xcb/xcb.h xcb_connect
4770     require_pkg_config libxcb_shape xcb-shape xcb/shape.h xcb_shape_rectangles
4771     disabled libxcb_shm ||
4772         check_pkg_config libxcb_shm xcb-shm xcb/shm.h xcb_shm_attach
4773     disabled libxcb_xfixes ||
4774         check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
4775 fi
4776
4777 # d3d11va requires linking directly to dxgi and d3d11 if not building for
4778 # the desktop api partition
4779 test_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
4780 #ifdef WINAPI_FAMILY
4781 #include <winapifamily.h>
4782 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4783 #error desktop, not uwp
4784 #else
4785 // WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
4786 #endif
4787 #else
4788 #error no family set
4789 #endif
4790 EOF
4791
4792 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4793
4794 if enabled vaapi; then
4795      require_cc vaapi "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)"
4796      check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm
4797      check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11
4798 fi
4799
4800 enabled vaapi &&
4801     test_cpp_condition "va/va.h" "VA_CHECK_VERSION(1, 0, 0)" &&
4802     enable vaapi_1
4803
4804 enabled vdpau &&
4805     check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
4806
4807 enabled vdpau &&
4808     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
4809
4810 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4811
4812 # add some useful compiler flags if supported
4813 check_cflags -Wdeclaration-after-statement
4814 check_cflags -Wall
4815 check_cflags -Wdisabled-optimization
4816 check_cflags -Wpointer-arith
4817 check_cflags -Wredundant-decls
4818 check_cflags -Wwrite-strings
4819 check_cflags -Wtype-limits
4820 check_cflags -Wundef
4821 check_cflags -Wmissing-prototypes
4822 check_cflags -Wstrict-prototypes
4823
4824 if enabled extra_warnings; then
4825     check_cflags -Wcast-qual
4826     check_cflags -Wextra
4827     check_cflags -Wpedantic
4828 fi
4829
4830 check_disable_warning(){
4831     warning_flag=-W${1#-Wno-}
4832     test_cflags $warning_flag && add_cflags $1
4833 }
4834
4835 check_disable_warning -Wno-parentheses
4836 check_disable_warning -Wno-switch
4837 check_disable_warning -Wno-format-zero-length
4838 check_disable_warning -Wno-pointer-sign
4839
4840 check_disable_warning_headers(){
4841     warning_flag=-W${1#-Wno-}
4842     test_cflags $warning_flag && add_cflags_headers $1
4843 }
4844
4845 check_disable_warning_headers -Wno-deprecated-declarations
4846 check_disable_warning_headers -Wno-unused-variable
4847
4848 check_objcflags -fobjc-arc && enable objc_arc
4849
4850 check_cc blocks_extension "" "void (^block)(void)"
4851
4852 # add some linker flags
4853 check_ldflags -Wl,--warn-common
4854 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4855 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -Wl,-rpath,$libdir
4856 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4857
4858 # add some strip flags
4859 # -wN '..@*' is more selective than -x, but not available everywhere.
4860 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4861
4862 enabled neon_clobber_test &&
4863     check_ldflags -Wl,--wrap,avcodec_open2              \
4864                   -Wl,--wrap,avcodec_decode_audio4      \
4865                   -Wl,--wrap,avcodec_decode_video2      \
4866                   -Wl,--wrap,avcodec_decode_subtitle2   \
4867                   -Wl,--wrap,avcodec_encode_audio2      \
4868                   -Wl,--wrap,avcodec_encode_video2      \
4869                   -Wl,--wrap,avcodec_encode_subtitle    \
4870                   -Wl,--wrap,avcodec_send_packet        \
4871                   -Wl,--wrap,avcodec_receive_packet     \
4872                   -Wl,--wrap,avcodec_send_frame         \
4873                   -Wl,--wrap,avcodec_receive_frame      \
4874                   -Wl,--wrap,avresample_convert ||
4875     disable neon_clobber_test
4876
4877 enabled xmm_clobber_test &&
4878     check_ldflags -Wl,--wrap,avcodec_open2              \
4879                   -Wl,--wrap,avcodec_decode_audio4      \
4880                   -Wl,--wrap,avcodec_decode_video2      \
4881                   -Wl,--wrap,avcodec_decode_subtitle2   \
4882                   -Wl,--wrap,avcodec_encode_audio2      \
4883                   -Wl,--wrap,avcodec_encode_video2      \
4884                   -Wl,--wrap,avcodec_encode_subtitle    \
4885                   -Wl,--wrap,avcodec_send_packet        \
4886                   -Wl,--wrap,avcodec_receive_packet     \
4887                   -Wl,--wrap,avcodec_send_frame         \
4888                   -Wl,--wrap,avcodec_receive_frame      \
4889                   -Wl,--wrap,avresample_convert         \
4890                   -Wl,--wrap,sws_scale ||
4891     disable xmm_clobber_test
4892
4893 check_ld proper_dce <<EOF
4894 extern const int array[512];
4895 static inline int func(void) { return array[0]; }
4896 int main(void) { return 0; }
4897 EOF
4898
4899 if enabled proper_dce; then
4900     echo "X { local: *; };" > $TMPV
4901     if test_ldflags -Wl,${version_script},$TMPV; then
4902         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4903         quotes='""'
4904         check_cc symver_asm_label "" "void ff_foo(void) __asm__ ("av_foo@VERSION");
4905                                       void ff_foo(void) { ${inline_asm+__asm__($quotes);} }"
4906         check_cc symver_gnu_asm   "" "__asm__(".symver ff_foo,av_foo@VERSION");
4907                                       void ff_foo(void) {}"
4908     fi
4909 fi
4910
4911 if [ -z "$optflags" ]; then
4912     if enabled small; then
4913         optflags=$cflags_size
4914     elif enabled optimizations; then
4915         optflags=$cflags_speed
4916     else
4917         optflags=$cflags_noopt
4918     fi
4919 fi
4920
4921 check_optflags(){
4922     check_cflags "$@"
4923     enabled lto && check_ldflags "$@"
4924 }
4925
4926 check_optflags $optflags
4927 check_optflags -fno-math-errno
4928 check_optflags -fno-signed-zeros
4929
4930 if enabled lto; then
4931     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4932     check_cflags  -flto
4933     check_ldflags -flto $cpuflags
4934 fi
4935
4936 if enabled icc; then
4937     # Just warnings, no remarks
4938     check_cflags -w1
4939     # -wd: Disable following warnings
4940     # 144, 167, 556: -Wno-pointer-sign
4941     # 1292: attribute "foo" ignored
4942     # 1419: external declaration in primary source file
4943     # 10006: ignoring unknown option -fno-signed-zeros
4944     # 10148: ignoring unknown option -Wno-parentheses
4945     # 10156: ignoring option '-W'; no argument required
4946     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4947     # 11030: Warning unknown option --as-needed
4948     # 10156: ignoring option '-export'; no argument required
4949     check_ldflags -wd10156,11030
4950     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4951     enable ebp_available
4952     if enabled x86_32; then
4953         icc_version=$($cc -dumpversion)
4954         test ${icc_version%%.*} -ge 11 &&
4955             check_cflags -falign-stack=maintain-16-byte ||
4956             disable aligned_stack
4957     fi
4958 elif enabled gcc; then
4959     check_optflags -fno-tree-vectorize
4960     check_cflags -Werror=implicit-function-declaration
4961     check_cflags -Werror=missing-prototypes
4962     check_cflags -Werror=return-type
4963     check_cflags -Werror=declaration-after-statement
4964     check_cflags -Werror=vla
4965     check_cflags -Werror=format-security
4966     check_cflags -fdiagnostics-color=auto
4967     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4968     if enabled x86_32; then
4969         case $target_os in
4970         *bsd*)
4971             # BSDs don't guarantee a 16 byte aligned stack, but we can
4972             # request GCC to try to maintain 16 byte alignment throughout
4973             # function calls. Library entry points that might call assembly
4974             # functions align the stack. (The parameter means 2^4 bytes.)
4975             check_cflags -mpreferred-stack-boundary=4
4976             ;;
4977         esac
4978     fi
4979 elif enabled llvm_gcc; then
4980     check_cflags -mllvm -stack-alignment=16
4981 elif enabled clang; then
4982     if enabled x86_32; then
4983         # Clang doesn't support maintaining alignment without assuming the
4984         # same alignment in every function. If 16 byte alignment would be
4985         # enabled, one would also have to either add attribute_align_arg on
4986         # every single entry point into the libraries or enable -mstackrealign
4987         # (doing stack realignment in every single function).
4988         case $target_os in
4989         mingw32|win32|*bsd*)
4990             disable aligned_stack
4991             ;;
4992         *)
4993             check_cflags -mllvm -stack-alignment=16
4994             ;;
4995         esac
4996     else
4997         check_cflags -mllvm -stack-alignment=16
4998     fi
4999     check_cflags -Qunused-arguments
5000     check_cflags -Werror=implicit-function-declaration
5001     check_cflags -Werror=missing-prototypes
5002     check_cflags -Werror=return-type
5003 elif enabled cparser; then
5004     add_cflags -Wno-missing-variable-declarations
5005     add_cflags -Wno-empty-statement
5006 elif enabled armcc; then
5007     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5008     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5009     # 2523: use of inline assembly is deprecated
5010     add_cflags -W${armcc_opt},--diag_suppress=2523
5011     add_cflags -W${armcc_opt},--diag_suppress=1207
5012     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5013     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5014     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5015     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5016 elif enabled pathscale; then
5017     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5018     disable inline_asm
5019 elif enabled_any msvc icl; then
5020     enabled x86_32 && disable aligned_stack
5021     enabled_all x86_32 debug && add_cflags -Oy-
5022     enabled debug && add_ldflags -debug
5023     enable pragma_deprecated
5024     if enabled icl; then
5025         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5026         # (correctly) on icl 13.x.
5027         test_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5028             add_cflags -Qansi-alias
5029         # icl will pass the inline asm tests but inline asm is currently
5030         # not supported (build will fail)
5031         disable inline_asm
5032     fi
5033     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5034     check_cpp_condition log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
5035     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5036     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5037     # (as it ends up if the restrict redefine is done before including stdlib.h), while
5038     # MSVC 2013 and newer can handle it fine.
5039     # If this declspec fails, force including stdlib.h before the restrict redefinition
5040     # happens in config.h.
5041     if [ $restrict_keyword != restrict ]; then
5042         test_cc <<EOF || add_cflags -FIstdlib.h
5043 __declspec($restrict_keyword) void *foo(int);
5044 EOF
5045     fi
5046 fi
5047
5048 for pfx in "" host_; do
5049     varname=${pfx%_}cc_type
5050     eval "type=\$$varname"
5051     if [ "$type" = "msvc" ]; then
5052         test_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5053 static inline int foo(int a) { return a; }
5054 EOF
5055     fi
5056 done
5057
5058 case $as_type in
5059     clang)
5060         add_asflags -Qunused-arguments
5061     ;;
5062 esac
5063
5064 case $ld_type in
5065     clang)
5066         check_ldflags -Qunused-arguments
5067     ;;
5068 esac
5069
5070 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5071
5072 check_cmd pod2man --help
5073 check_cmd texi2html -version
5074
5075 check_deps $CONFIG_LIST       \
5076            $CONFIG_EXTRA      \
5077            $HAVE_LIST         \
5078            $ALL_COMPONENTS    \
5079
5080 flatten_extralibs(){
5081     unset nested_entries
5082     list_name=$1
5083     eval list=\$${1}
5084     for entry in $list; do
5085         entry_copy=$entry
5086         resolve entry_copy
5087         append nested_entries $(filter '*_extralibs' $entry_copy)
5088         flat_entries=$(filter_out '*_extralibs' $entry_copy)
5089         eval $entry="\$flat_entries"
5090     done
5091     append $list_name "$nested_entries"
5092
5093     resolve nested_entries
5094     if test -n "$(filter '*_extralibs' $nested_entries)"; then
5095         flatten_extralibs $list_name
5096     fi
5097 }
5098
5099 for linkunit in $LIBRARY_LIST; do
5100     unset current_extralibs
5101     eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
5102     for comp in ${components}; do
5103         enabled $comp || continue
5104         comp_extralibs="${comp}_extralibs"
5105         append current_extralibs $comp_extralibs
5106     done
5107     eval prepend ${linkunit}_extralibs $current_extralibs
5108 done
5109
5110 for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
5111     flatten_extralibs ${linkunit}_extralibs
5112     unique  ${linkunit}_extralibs
5113     resolve ${linkunit}_extralibs
5114     eval ${linkunit}_extralibs=\$\(\$ldflags_filter \$${linkunit}_extralibs\)
5115 done
5116
5117 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5118
5119 for thread in $THREADS_LIST; do
5120     if enabled $thread; then
5121         test -n "$thread_type" &&
5122             die "ERROR: Only one thread type must be selected." ||
5123             thread_type="$thread"
5124     fi
5125 done
5126
5127 if disabled stdatomic; then
5128     if enabled atomics_gcc; then
5129         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
5130     elif enabled atomics_win32; then
5131         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
5132     elif enabled atomics_suncc; then
5133         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
5134     elif enabled pthreads; then
5135         add_compat atomics/pthread/stdatomic.o
5136         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
5137     else
5138         enabled threads && die "Threading is enabled, but no atomics are available"
5139         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
5140     fi
5141 fi
5142
5143 enabled zlib && add_cppflags -DZLIB_CONST
5144
5145 # conditional library dependencies, in linking order
5146 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5147 enabled_any asyncts_filter resample_filter &&
5148                            prepend avfilter_deps "avresample"
5149 enabled scale_filter    && prepend avfilter_deps "swscale"
5150
5151 enabled opus_decoder    && prepend avcodec_deps "avresample"
5152
5153 expand_deps(){
5154     lib_deps=${1}_deps
5155     eval "deps=\$$lib_deps"
5156     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5157     unique $lib_deps
5158 }
5159
5160 map 'expand_deps $v' $LIBRARY_LIST
5161
5162 if test "$quiet" != "yes"; then
5163
5164 echo "install prefix            $prefix"
5165 echo "source path               $source_path"
5166 echo "C compiler                $cc"
5167 echo "C library                 $libc_type"
5168 if test "$host_cc" != "$cc"; then
5169     echo "host C compiler           $host_cc"
5170     echo "host C library            $host_libc_type"
5171 fi
5172 echo "ARCH                      $arch ($cpu)"
5173 if test "$extra_version" != ""; then
5174     echo "version string suffix     $extra_version"
5175 fi
5176 echo "big-endian                ${bigendian-no}"
5177 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5178 if enabled x86; then
5179     echo "standalone assembly       ${x86asm-no}"
5180     echo "x86 assembler             ${x86asmexe}"
5181     echo "MMX enabled               ${mmx-no}"
5182     echo "MMXEXT enabled            ${mmxext-no}"
5183     echo "3DNow! enabled            ${amd3dnow-no}"
5184     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5185     echo "SSE enabled               ${sse-no}"
5186     echo "SSSE3 enabled             ${ssse3-no}"
5187     echo "AVX enabled               ${avx-no}"
5188     echo "XOP enabled               ${xop-no}"
5189     echo "FMA3 enabled              ${fma3-no}"
5190     echo "FMA4 enabled              ${fma4-no}"
5191     echo "i686 features enabled     ${i686-no}"
5192     echo "CMOV is fast              ${fast_cmov-no}"
5193     echo "EBX available             ${ebx_available-no}"
5194     echo "EBP available             ${ebp_available-no}"
5195 fi
5196 if enabled aarch64; then
5197     echo "NEON enabled              ${neon-no}"
5198     echo "VFP enabled               ${vfp-no}"
5199 fi
5200 if enabled arm; then
5201     echo "ARMv5TE enabled           ${armv5te-no}"
5202     echo "ARMv6 enabled             ${armv6-no}"
5203     echo "ARMv6T2 enabled           ${armv6t2-no}"
5204     echo "VFP enabled               ${vfp-no}"
5205     echo "NEON enabled              ${neon-no}"
5206 fi
5207 if enabled ppc; then
5208     echo "AltiVec enabled           ${altivec-no}"
5209     echo "VSX enabled               ${vsx-no}"
5210     echo "POWER8 enabled            ${power8-no}"
5211     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5212     echo "dcbzl available           ${dcbzl-no}"
5213 fi
5214 echo "debug symbols             ${debug-no}"
5215 echo "optimize for size         ${small-no}"
5216 echo "optimizations             ${optimizations-no}"
5217 echo "static                    ${static-no}"
5218 echo "shared                    ${shared-no}"
5219 echo "network support           ${network-no}"
5220 echo "threading support         ${thread_type-no}"
5221 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5222
5223 echo "External libraries:"
5224 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5225 echo
5226 echo "External libraries providing hardware acceleration:"
5227 print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5228 echo
5229
5230 echo "Libraries:"
5231 print_enabled '' $LIBRARY_LIST | print_3_columns
5232 echo
5233
5234 echo "Programs:"
5235 print_enabled '' $PROGRAM_LIST | print_3_columns
5236 echo
5237
5238 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev; do
5239     echo "Enabled ${type}s:"
5240     eval list=\$$(toupper $type)_LIST
5241     print_enabled '_*' $list | print_3_columns
5242     echo
5243 done
5244
5245 if test -n "$ignore_tests"; then
5246     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
5247     echo "Ignored FATE tests:"
5248     echo $ignore_tests | print_3_columns
5249     echo
5250 fi
5251
5252 echo "License: $license"
5253
5254 fi # test "$quiet" != "yes"
5255
5256 test -n "$WARNINGS" && printf "\n$WARNINGS"
5257
5258 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5259
5260 esc(){
5261     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
5262 }
5263
5264 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
5265
5266 config_files="$TMPH avbuild/config.mak"
5267
5268 cat > avbuild/config.mak <<EOF
5269 # Automatically generated by configure - do not modify!
5270 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5271 prefix=$prefix
5272 LIBDIR=\$(DESTDIR)$libdir
5273 SHLIBDIR=\$(DESTDIR)$shlibdir
5274 INCDIR=\$(DESTDIR)$incdir
5275 BINDIR=\$(DESTDIR)$bindir
5276 DATADIR=\$(DESTDIR)$datadir
5277 DOCDIR=\$(DESTDIR)$docdir
5278 MANDIR=\$(DESTDIR)$mandir
5279 SRC_PATH=$source_path
5280 CC_IDENT=$cc_ident
5281 ARCH=$arch
5282 INTRINSICS=$intrinsics
5283 EXTERN_PREFIX=$extern_prefix
5284 CC=$cc
5285 AS=$as
5286 OBJCC=$objcc
5287 LD=$ld
5288 DEPCC=$dep_cc
5289 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5290 DEPAS=$as
5291 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5292 X86ASM=$x86asmexe
5293 DEPX86ASM=$x86asmexe
5294 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
5295 AR=$ar
5296 ARFLAGS=$arflags
5297 AR_O=$ar_o
5298 AR_CMD=$ar
5299 NM_CMD=$nm
5300 RANLIB=$ranlib
5301 STRIP=$strip
5302 LN_S=$ln_s
5303 CPPFLAGS=$CPPFLAGS
5304 CFLAGS=$CFLAGS
5305 OBJCFLAGS=$OBJCFLAGS
5306 ASFLAGS=$ASFLAGS
5307 AS_C=$AS_C
5308 AS_O=$AS_O
5309 OBJCC_C=$OBJCC_C
5310 OBJCC_E=$OBJCC_E
5311 OBJCC_O=$OBJCC_O
5312 CC_C=$CC_C
5313 CC_E=$CC_E
5314 CC_O=$CC_O
5315 X86ASM_O=$X86ASM_O
5316 LD_O=$LD_O
5317 LD_LIB=$LD_LIB
5318 LD_PATH=$LD_PATH
5319 DLLTOOL=$dlltool
5320 LDFLAGS=$LDFLAGS
5321 LDEXEFLAGS=$LDEXEFLAGS
5322 LDSOFLAGS=$LDSOFLAGS
5323 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5324 STRIPFLAGS=$STRIPFLAGS
5325 X86ASMFLAGS=$X86ASMFLAGS
5326 LIBPREF=$LIBPREF
5327 LIBSUF=$LIBSUF
5328 LIBNAME=$LIBNAME
5329 SLIBPREF=$SLIBPREF
5330 SLIBSUF=$SLIBSUF
5331 EXESUF=$EXESUF
5332 EXTRA_VERSION=$extra_version
5333 CCDEP=$CCDEP
5334 CCDEP_FLAGS=$CCDEP_FLAGS
5335 ASDEP=$ASDEP
5336 ASDEP_FLAGS=$ASDEP_FLAGS
5337 X86ASMDEP=$X86ASMDEP
5338 X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
5339 CC_DEPFLAGS=$CC_DEPFLAGS
5340 AS_DEPFLAGS=$AS_DEPFLAGS
5341 X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
5342 HOSTCC=$host_cc
5343 HOSTLD=$host_ld
5344 HOSTCFLAGS=$host_cflags
5345 HOSTCPPFLAGS=$host_cppflags
5346 HOSTEXESUF=$HOSTEXESUF
5347 HOSTLDFLAGS=$host_ldflags
5348 HOSTEXTRALIBS=$host_extralibs
5349 DEPHOSTCC=$host_cc
5350 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5351 HOSTCCDEP=$HOSTCCDEP
5352 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5353 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5354 HOSTCC_C=$HOSTCC_C
5355 HOSTCC_O=$HOSTCC_O
5356 HOSTLD_O=$HOSTLD_O
5357 TARGET_EXEC=$target_exec $target_exec_args
5358 TARGET_PATH=$target_path
5359 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5360 CFLAGS-avplay=$sdl_cflags
5361 CFLAGS_HEADERS=$CFLAGS_HEADERS
5362 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5363 EXTRALIBS=$extralibs
5364 COMPAT_OBJS=$compat_objs
5365 INSTALL=install
5366 LIBTARGET=${LIBTARGET}
5367 SLIBNAME=${SLIBNAME}
5368 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5369 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5370 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5371 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5372 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5373 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5374 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5375 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5376 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5377 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5378 IGNORE_TESTS=$ignore_tests
5379 EOF
5380
5381 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> avbuild/config.mak' $LIBRARY_LIST
5382
5383 for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
5384     eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> avbuild/config.mak
5385 done
5386
5387 cat > $TMPH <<EOF
5388 /* Automatically generated by configure - do not modify! */
5389 #ifndef LIBAV_CONFIG_H
5390 #define LIBAV_CONFIG_H
5391 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5392 #define LIBAV_LICENSE "$(c_escape $license)"
5393 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5394 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5395 #define EXTERN_PREFIX "${extern_prefix}"
5396 #define EXTERN_ASM ${extern_prefix}
5397 #define SLIBSUF "$SLIBSUF"
5398 EOF
5399
5400 test $restrict_keyword != restrict &&
5401     echo "#define restrict $restrict_keyword" >> $TMPH
5402
5403 test -n "$malloc_prefix" &&
5404     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5405
5406 if enabled x86asm; then
5407     append config_files $TMPASM
5408     cat > $TMPASM <<EOF
5409 ; Automatically generated by configure - do not modify!
5410 EOF
5411 fi
5412
5413 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5414
5415 print_config ARCH_   "$config_files" $ARCH_LIST
5416 print_config HAVE_   "$config_files" $HAVE_LIST
5417 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5418                                      $CONFIG_EXTRA      \
5419                                      $ALL_COMPONENTS    \
5420
5421 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5422
5423 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5424 cp_if_changed $TMPH config.h
5425 touch avbuild/.config
5426
5427 enabled x86asm && cp_if_changed $TMPASM config.asm
5428
5429 cat > $TMPH <<EOF
5430 /* Generated by libav configure */
5431 #ifndef AVUTIL_AVCONFIG_H
5432 #define AVUTIL_AVCONFIG_H
5433 EOF
5434
5435 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5436
5437 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5438
5439 cp_if_changed $TMPH libavutil/avconfig.h
5440
5441 # generate the lists of enabled components
5442 print_enabled_components(){
5443     file=$1
5444     struct_name=$2
5445     name=$3
5446     shift 3
5447     echo "static const $struct_name * const $name[] = {" > $TMPH
5448     for c in $*; do
5449         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH
5450     done
5451     echo "    NULL };" >> $TMPH
5452     cp_if_changed $TMPH $file
5453 }
5454
5455 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5456 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5457
5458 # Settings for pkg-config files
5459
5460 cat > $TMPH <<EOF
5461 # Automatically generated by configure - do not modify!
5462 shared=$shared
5463 prefix=$prefix
5464 libdir=$libdir
5465 incdir=$incdir
5466 source_path=${source_path}
5467 LIBPREF=${LIBPREF}
5468 LIBSUF=${LIBSUF}
5469 extralibs_avutil="$avutil_extralibs"
5470 extralibs_avcodec="$avcodec_extralibs"
5471 extralibs_avformat="$avformat_extralibs"
5472 extralibs_avdevice="$avdevice_extralibs"
5473 extralibs_avfilter="$avfilter_extralibs"
5474 extralibs_avresample="$avresample_extralibs"
5475 extralibs_swscale="$swscale_extralibs"
5476 EOF
5477
5478 for lib in $LIBRARY_LIST; do
5479     lib_deps="$(eval echo \$${lib}_deps)"
5480     echo ${lib}_deps=\"$lib_deps\" >> $TMPH
5481 done
5482
5483 cp_if_changed $TMPH avbuild/config.sh