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:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --quiet                  Suppress showing informative output
  67   --list-decoders          show all available decoders
  68   --list-encoders          show all available encoders
  69   --list-hwaccels          show all available hardware accelerators
  70   --list-demuxers          show all available demuxers
  71   --list-muxers            show all available muxers
  72   --list-parsers           show all available parsers
  73   --list-protocols         show all available protocols
  74   --list-bsfs              show all available bitstream filters
  75   --list-indevs            show all available input devices
  76   --list-outdevs           show all available output devices
  77   --list-filters           show all available filters
  78
  79 Standard options:
  80   --logfile=FILE           log tests and output to FILE [avbuild/config.log]
  81   --disable-logging        do not log configure debug information
  82   --prefix=PREFIX          install in PREFIX [$prefix_default]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
  86   --libdir=DIR             install libs in DIR [PREFIX/lib]
  87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  88   --incdir=DIR             install includes in DIR [PREFIX/include]
  89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  90   --enable-rpath           use rpath when linking programs (USE WITH CARE)
  91
  92 Licensing options:
  93   --enable-gpl             allow use of GPL code, the resulting libs
  94                            and binaries will be under GPL [no]
  95   --enable-version3        upgrade (L)GPL to version 3 [no]
  96   --enable-nonfree         allow use of nonfree code, the resulting libs
  97                            and binaries will be unredistributable [no]
  98
  99 Configuration options:
 100   --disable-static         do not build static libraries [no]
 101   --enable-shared          build shared libraries [no]
 102   --enable-small           optimize for size instead of speed
 103   --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
 104   --enable-gray            enable full grayscale support (slower color)
 105   --disable-swscale-alpha  disable alpha channel support in swscale
 106   --disable-all            disable building components, libraries and programs
 107
 108 Program options:
 109   --disable-programs       do not build command line programs
 110   --disable-avconv         disable avconv build
 111   --disable-avplay         disable avplay build
 112   --disable-avprobe        disable avprobe build
 113   --disable-avserver       deprecated, does nothing
 114
 115 Component options:
 116   --disable-doc            do not build documentation
 117   --disable-pod2man        do not build manual pages
 118   --disable-texi2html      do not build HTML documentation
 119   --disable-avdevice       disable libavdevice build
 120   --disable-avcodec        disable libavcodec build
 121   --disable-avformat       disable libavformat build
 122   --disable-avutil         disable libavutil build
 123   --disable-swscale        disable libswscale build
 124   --disable-avfilter       disable video filter support [no]
 125   --disable-avresample     disable libavresample build [no]
 126   --disable-pthreads       disable pthreads [auto]
 127   --disable-w32threads     disable Win32 threads [auto]
 128   --disable-network        disable network support [no]
 129   --disable-dct            disable DCT code
 130   --disable-error-resilience disable error resilience code
 131   --disable-lsp            disable LSP code
 132   --disable-lzo            disable LZO decoder code
 133   --disable-mdct           disable MDCT code
 134   --disable-rdft           disable RDFT code
 135   --disable-fft            disable FFT code
 136   --disable-faan           disable floating point AAN (I)DCT code
 137
 138 Individual component options:
 139   --disable-everything     disable all components listed below
 140   --disable-encoder=NAME   disable encoder NAME
 141   --enable-encoder=NAME    enable encoder NAME
 142   --disable-encoders       disable all encoders
 143   --disable-decoder=NAME   disable decoder NAME
 144   --enable-decoder=NAME    enable decoder NAME
 145   --disable-decoders       disable all decoders
 146   --disable-hwaccel=NAME   disable hwaccel NAME
 147   --enable-hwaccel=NAME    enable hwaccel NAME
 148   --disable-hwaccels       disable all hwaccels
 149   --disable-muxer=NAME     disable muxer NAME
 150   --enable-muxer=NAME      enable muxer NAME
 151   --disable-muxers         disable all muxers
 152   --disable-demuxer=NAME   disable demuxer NAME
 153   --enable-demuxer=NAME    enable demuxer NAME
 154   --disable-demuxers       disable all demuxers
 155   --enable-parser=NAME     enable parser NAME
 156   --disable-parser=NAME    disable parser NAME
 157   --disable-parsers        disable all parsers
 158   --enable-bsf=NAME        enable bitstream filter NAME
 159   --disable-bsf=NAME       disable bitstream filter NAME
 160   --disable-bsfs           disable all bitstream filters
 161   --enable-protocol=NAME   enable protocol NAME
 162   --disable-protocol=NAME  disable protocol NAME
 163   --disable-protocols      disable all protocols
 164   --enable-indev=NAME      enable input device NAME
 165   --disable-indev=NAME     disable input device NAME
 166   --disable-indevs         disable input devices
 167   --enable-outdev=NAME     enable output device NAME
 168   --disable-outdev=NAME    disable output device NAME
 169   --disable-outdevs        disable output devices
 170   --disable-devices        disable all devices
 171   --enable-filter=NAME     enable filter NAME
 172   --disable-filter=NAME    disable filter NAME
 173   --disable-filters        disable all filters
 174
 175 External library support:
 176
 177   Using any of the following switches will allow Libav to link to the
 178   corresponding external library. All the components depending on that library
 179   will become enabled, if all their other dependencies are met and they are not
 180   explicitly disabled. E.g. --enable-libwavpack will enable linking to
 181   libwavpack and allow the libwavpack encoder to be built, unless it is
 182   specifically disabled with --disable-encoder=libwavpack.
 183
 184   Note that only the system libraries are auto-detected. All the other external
 185   libraries must be explicitly enabled.
 186
 187   Also note that the following help text describes the purpose of the libraries
 188   themselves, not all their features will necessarily be usable by Libav.
 189
 190   --enable-avisynth          video frameserver
 191   --enable-avxsynth          Linux version of AviSynth
 192   --enable-bzlib             bzip2 compression [autodetect]
 193   --enable-frei0r            video filtering plugins
 194   --enable-gnutls            crypto
 195   --enable-libbs2b           Bauer stereophonic-to-binaural DSP
 196   --enable-libcdio           audio CD input
 197   --enable-libdc1394         IEEE 1394/Firewire camera input
 198   --enable-libdcadec         DCA audio decoding
 199   --enable-libfaac           AAC audio encoding
 200   --enable-libfdk-aac        AAC audio encoding/decoding
 201   --enable-libfontconfig     font configuration and management
 202   --enable-libfreetype       font rendering
 203   --enable-libgsm            GSM audio encoding/decoding
 204   --enable-libhdcd           HDCD decoding filter
 205   --enable-libilbc           ILBC audio encoding/decoding
 206   --enable-libkvazaar        HEVC video encoding
 207   --enable-libmp3lame        MP3 audio encoding
 208   --enable-libopencore-amrnb AMR-NB audio encoding/decoding
 209   --enable-libopencore-amrwb AMR-WB audio decoding
 210   --enable-libopencv         computer vision
 211   --enable-libopenh264       H.264 video encoding/decoding
 212   --enable-libopenjpeg       JPEG 2000 image encoding/decoding
 213   --enable-libopus           Opus audio encoding/decoding
 214   --enable-libpulse          Pulseaudio sound server
 215   --enable-librtmp           RTMP streaming
 216   --enable-libschroedinger   Dirac video encoding/decoding
 217   --enable-libsnappy         snappy compression
 218   --enable-libspeex          Speex audio encoding/decoding
 219   --enable-libtheora         Theora video encoding/decoding
 220   --enable-libtwolame        MP2 audio encoding
 221   --enable-libvo-aacenc      AAC audio encoding
 222   --enable-libvo-amrwbenc    AMR-WB audio encoding
 223   --enable-libvorbis         Vorbis audio encoding/decoding
 224   --enable-libvpx            VP* video encoding/decoding
 225   --enable-libwavpack        Wavpack audio encoding/decoding
 226   --enable-libwebp           WebP image encoding/decoding
 227   --enable-libx264           H.264 video encoding
 228   --enable-libx265           HEVC video encoding
 229   --enable-libxavs           Chinese AVS video encoding
 230   --enable-libxcb            X window system protocol communication
 231   --enable-libxcb-shm        X11 shm communication [auto]
 232   --enable-libxcb-xfixes     X11 mouse rendering [auto]
 233   --enable-libxvid           MPEG-4 ASP video encoding
 234   --enable-openssl           crypto
 235   --enable-zlib              compression [autodetect]
 236
 237   The following libraries provide various hardware acceleration features:
 238   --enable-cuda    Nvidia CUDA (dynamically linked)
 239   --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
 240   --enable-dxva2   Microsoft DirectX 9 video acceleration [auto]
 241   --enable-libmfx  Intel MediaSDK (AKA Quick Sync Video)
 242   --enable-libnpp  Nvidia CUDA processing
 243   --enable-mmal    Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
 244   --enable-nvenc   Nvidia video encoding
 245   --enable-omx     OpenMAX IL
 246   --enable-omx-rpi OpenMAX IL for Raspberry Pi
 247   --enable-vaapi   Video Acceleration API (mainly Unix/Intel)
 248   --enable-vda     Apple Video Decode Acceleration [auto]
 249   --enable-vdpau   Nvidia Video Decode and Presentation API for Unix [auto]
 250
 251 Toolchain options:
 252   --arch=ARCH              select architecture [$arch]
 253   --cpu=CPU                select the minimum required CPU (affects
 254                            instruction selection, may crash on older CPUs)
 255   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 256   --enable-cross-compile   assume a cross-compiler is used
 257   --sysroot=PATH           root of cross-build tree
 258   --sysinclude=PATH        location of cross-build system headers
 259   --target-os=OS           compiler targets OS [$target_os]
 260   --target-exec=CMD        command to run executables on target
 261   --target-path=DIR        path to view of build directory on target
 262   --target-samples=DIR     path to samples directory on target
 263   --toolchain=NAME         set tool defaults according to NAME
 264   --nm=NM                  use nm tool
 265   --ar=AR                  use archive tool AR [$ar_default]
 266   --as=AS                  use assembler AS [$as_default]
 267   --cc=CC                  use C compiler CC [$cc_default]
 268   --objcc=OCC              use ObjC compiler OCC [$cc_default]
 269   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 270   --ld=LD                  use linker LD
 271   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 272   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 273   --host-cc=HOSTCC         use host C compiler HOSTCC
 274   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 275   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 276   --host-ld=HOSTLD         use host linker HOSTLD
 277   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 278   --host-libs=HLIBS        use libs HLIBS when linking for host
 279   --host-os=OS             compiler host OS [$target_os]
 280   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 281   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
 282   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 283   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 284   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 285   --extra-version=STRING   version string suffix []
 286   --optflags=OPTFLAGS      override optimization-related compiler flags
 287   --enable-pic             build position-independent code
 288   --enable-thumb           compile for Thumb instruction set
 289   --enable-lto             use link-time optimization
 290   --env="ENV=override"     override the environment variables
 291
 292 Advanced options (experts only):
 293   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 294   --custom-allocator=NAME  use a supported custom allocator
 295   --disable-symver         disable symbol versioning
 296   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 297   --disable-safe-bitstream-reader
 298                            disable buffer boundary checking in bitreaders
 299                            (faster, but may crash)
 300   --enable-sram            allow use of on-chip SRAM
 301
 302 Optimization options (experts only):
 303   --disable-asm            disable all assembly optimizations
 304   --disable-altivec        disable AltiVec optimizations
 305   --disable-vsx            disable VSX optimizations
 306   --disable-power8         disable POWER8 optimizations
 307   --disable-amd3dnow       disable 3DNow! optimizations
 308   --disable-amd3dnowext    disable 3DNow! extended optimizations
 309   --disable-mmx            disable MMX optimizations
 310   --disable-mmxext         disable MMXEXT optimizations
 311   --disable-sse            disable SSE optimizations
 312   --disable-sse2           disable SSE2 optimizations
 313   --disable-sse3           disable SSE3 optimizations
 314   --disable-ssse3          disable SSSE3 optimizations
 315   --disable-sse4           disable SSE4 optimizations
 316   --disable-sse42          disable SSE4.2 optimizations
 317   --disable-avx            disable AVX optimizations
 318   --disable-xop            disable XOP optimizations
 319   --disable-fma3           disable FMA3 optimizations
 320   --disable-fma4           disable FMA4 optimizations
 321   --disable-avx2           disable AVX2 optimizations
 322   --disable-armv5te        disable armv5te optimizations
 323   --disable-armv6          disable armv6 optimizations
 324   --disable-armv6t2        disable armv6t2 optimizations
 325   --disable-vfp            disable VFP optimizations
 326   --disable-neon           disable NEON optimizations
 327   --disable-inline-asm     disable use of inline assembly
 328   --disable-yasm           disable use of nasm/yasm assembly
 329
 330 Developer options (useful when working on Libav itself):
 331   --disable-debug          disable debugging symbols
 332   --enable-debug=LEVEL     set the debug level [$debuglevel]
 333   --disable-optimizations  disable compiler optimizations
 334   --enable-extra-warnings  enable more compiler warnings
 335   --samples=PATH           location of test samples for FATE, if not set use
 336                            \$LIBAV_SAMPLES at make invocation time.
 337   --enable-neon-clobber-test check NEON registers for clobbering (should be
 338                            used only for debugging purposes)
 339   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 340                            should be used only for debugging purposes)
 341   --enable-random          randomly enable/disable components
 342   --disable-random
 343   --enable-random=LIST     randomly enable/disable specific components or
 344   --disable-random=LIST    component groups. LIST is a comma-separated list
 345                            of NAME[:PROB] entries where NAME is a component
 346                            (group) and PROB the probability associated with
 347                            NAME (default 0.5).
 348   --random-seed=VALUE      seed value for --enable/disable-random
 349   --disable-valgrind-backtrace do not print a backtrace under Valgrind
 350                            (only applies to --disable-optimizations builds)
 351   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
 352                            in the name) of tests whose result is ignored
 353
 354 NOTE: Object files are built at the place where configure is launched.
 355 EOF
 356   exit 0
 357 }
 358
 359 quotes='""'
 360
 361 log(){
 362     echo "$@" >> $logfile
 363 }
 364
 365 log_file(){
 366     log BEGIN $1
 367     i=1
 368     while read line; do
 369         printf '%5s   %s\n' "${i}" "${line}"
 370         i=$(($i+1))
 371     done < $1 >> $logfile
 372     log END $1
 373 }
 374
 375 echolog(){
 376     log "$@"
 377     echo "$@"
 378 }
 379
 380 warn(){
 381     log "WARNING: $*"
 382     WARNINGS="${WARNINGS}WARNING: $*\n"
 383 }
 384
 385 die(){
 386     echolog "$@"
 387     cat <<EOF
 388
 389 If you think configure made a mistake, make sure you are using the latest
 390 version from Git.  If the latest version fails, report the problem to the
 391 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
 392 EOF
 393     if disabled logging; then
 394         cat <<EOF
 395 Rerun configure with logging enabled (do not use --disable-logging), and
 396 include the log this produces with your report.
 397 EOF
 398     else
 399         cat <<EOF
 400 Include the log file "$logfile" produced by configure as this will help
 401 solving the problem.
 402 EOF
 403     fi
 404     exit 1
 405 }
 406
 407 # Avoid locale weirdness, besides we really just want to translate ASCII.
 408 toupper(){
 409     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 410 }
 411
 412 tolower(){
 413     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 414 }
 415
 416 c_escape(){
 417     echo "$*" | sed 's/["\\]/\\\0/g'
 418 }
 419
 420 sh_quote(){
 421     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 422     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 423     echo "$v"
 424 }
 425
 426 cleanws(){
 427     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 428 }
 429
 430 filter(){
 431     pat=$1
 432     shift
 433     for v; do
 434         eval "case $v in $pat) printf '%s ' $v ;; esac"
 435     done
 436 }
 437
 438 filter_out(){
 439     pat=$1
 440     shift
 441     for v; do
 442         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
 443     done
 444 }
 445
 446 map(){
 447     m=$1
 448     shift
 449     for v; do eval $m; done
 450 }
 451
 452 add_suffix(){
 453     suffix=$1
 454     shift
 455     for v; do echo ${v}${suffix}; done
 456 }
 457
 458 set_all(){
 459     value=$1
 460     shift
 461     for var in $*; do
 462         eval $var=$value
 463     done
 464 }
 465
 466 set_weak(){
 467     value=$1
 468     shift
 469     for var; do
 470         eval : \${$var:=$value}
 471     done
 472 }
 473
 474 sanitize_var_name(){
 475     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 476 }
 477
 478 set_safe(){
 479     var=$1
 480     shift
 481     eval $(sanitize_var_name "$var")='$*'
 482 }
 483
 484 get_safe(){
 485     eval echo \$$(sanitize_var_name "$1")
 486 }
 487
 488 pushvar(){
 489     for pvar in $*; do
 490         eval level=\${${pvar}_level:=0}
 491         eval ${pvar}_${level}="\$$pvar"
 492         eval ${pvar}_level=$(($level+1))
 493     done
 494 }
 495
 496 popvar(){
 497     for pvar in $*; do
 498         eval level=\${${pvar}_level:-0}
 499         test $level = 0 && continue
 500         eval level=$(($level-1))
 501         eval $pvar="\${${pvar}_${level}}"
 502         eval ${pvar}_level=$level
 503         eval unset ${pvar}_${level}
 504     done
 505 }
 506
 507 enable(){
 508     set_all yes $*
 509 }
 510
 511 disable(){
 512     set_all no $*
 513 }
 514
 515 enable_weak(){
 516     set_weak yes $*
 517 }
 518
 519 disable_weak(){
 520     set_weak no $*
 521 }
 522
 523 enable_safe(){
 524     for var; do
 525         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 526     done
 527 }
 528
 529 disable_safe(){
 530     for var; do
 531         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 532     done
 533 }
 534
 535 do_enable_deep(){
 536     for var; do
 537         enabled $var && continue
 538         eval sel="\$${var}_select"
 539         eval sgs="\$${var}_suggest"
 540         pushvar var sgs
 541         enable_deep $sel
 542         popvar sgs
 543         enable_deep_weak $sgs
 544         popvar var
 545     done
 546 }
 547
 548 enable_deep(){
 549     do_enable_deep $*
 550     enable $*
 551 }
 552
 553 enable_deep_weak(){
 554     for var; do
 555         disabled $var && continue
 556         pushvar var
 557         do_enable_deep $var
 558         popvar var
 559         enable_weak $var
 560     done
 561 }
 562
 563 enabled(){
 564     test "${1#!}" = "$1" && op== || op=!=
 565     eval test "x\$${1#!}" $op "xyes"
 566 }
 567
 568 disabled(){
 569     test "${1#!}" = "$1" && op== || op=!=
 570     eval test "x\$${1#!}" $op "xno"
 571 }
 572
 573 enabled_all(){
 574     for opt; do
 575         enabled $opt || return 1
 576     done
 577 }
 578
 579 disabled_all(){
 580     for opt; do
 581         disabled $opt || return 1
 582     done
 583 }
 584
 585 enabled_any(){
 586     for opt; do
 587         enabled $opt && return 0
 588     done
 589 }
 590
 591 disabled_any(){
 592     for opt; do
 593         disabled $opt && return 0
 594     done
 595     return 1
 596 }
 597
 598 set_default(){
 599     for opt; do
 600         eval : \${$opt:=\$${opt}_default}
 601     done
 602 }
 603
 604 is_in(){
 605     value=$1
 606     shift
 607     for var in $*; do
 608         [ $var = $value ] && return 0
 609     done
 610     return 1
 611 }
 612
 613 do_check_deps(){
 614     for cfg; do
 615         cfg="${cfg#!}"
 616         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 617         disabled ${cfg}_checking && continue
 618         enable ${cfg}_checking
 619         append allopts $cfg
 620
 621         eval dep_all="\$${cfg}_deps"
 622         eval dep_any="\$${cfg}_deps_any"
 623         eval dep_sel="\$${cfg}_select"
 624         eval dep_sgs="\$${cfg}_suggest"
 625         eval dep_ifa="\$${cfg}_if"
 626         eval dep_ifn="\$${cfg}_if_any"
 627
 628         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 629         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 630         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 631
 632         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 633         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 634         enabled_all  $dep_all || disable $cfg
 635         enabled_any  $dep_any || disable $cfg
 636         disabled_any $dep_sel && disable $cfg
 637
 638         if enabled $cfg; then
 639             enable_deep $dep_sel
 640             enable_deep_weak $dep_sgs
 641         fi
 642
 643         disable ${cfg}_checking
 644     done
 645 }
 646
 647 check_deps(){
 648     unset allopts
 649
 650     do_check_deps "$@"
 651
 652     for cfg in $allopts; do
 653         enabled $cfg || continue
 654         eval dep_extralibs="\$${cfg}_extralibs"
 655         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 656     done
 657 }
 658
 659 print_config(){
 660     pfx=$1
 661     files=$2
 662     shift 2
 663     map 'eval echo "$v \${$v:-no}"' "$@" |
 664     awk "BEGIN { split(\"$files\", files) }
 665         {
 666             c = \"$pfx\" toupper(\$1);
 667             v = \$2;
 668             sub(/yes/, 1, v);
 669             sub(/no/,  0, v);
 670             for (f in files) {
 671                 file = files[f];
 672                 if (file ~ /\\.h\$/) {
 673                     printf(\"#define %s %d\\n\", c, v) >>file;
 674                 } else if (file ~ /\\.asm\$/) {
 675                     printf(\"%%define %s %d\\n\", c, v) >>file;
 676                 } else if (file ~ /\\.mak\$/) {
 677                     n = -v ? \"\" : \"!\";
 678                     printf(\"%s%s=yes\\n\", n, c) >>file;
 679                 }
 680             }
 681         }"
 682 }
 683
 684 print_enabled(){
 685     suf=$1
 686     shift
 687     for v; do
 688         enabled $v && printf "%s\n" ${v%$suf}
 689     done
 690 }
 691
 692 append(){
 693     var=$1
 694     shift
 695     eval "$var=\"\$$var $*\""
 696 }
 697
 698 prepend(){
 699     var=$1
 700     shift
 701     eval "$var=\"$* \$$var\""
 702 }
 703
 704 unique(){
 705     var=$1
 706     uniq_list=""
 707     for tok in $(eval echo \$$var); do
 708         uniq_list="$(filter_out $tok $uniq_list) $tok"
 709     done
 710     eval "$var=\"${uniq_list}\""
 711 }
 712
 713 add_cppflags(){
 714     append CPPFLAGS "$@"
 715 }
 716
 717 add_cflags(){
 718     append CFLAGS $($cflags_filter "$@")
 719 }
 720
 721 add_cflags_headers(){
 722     append CFLAGS_HEADERS $($cflags_filter "$@")
 723 }
 724
 725 add_asflags(){
 726     append ASFLAGS $($asflags_filter "$@")
 727 }
 728
 729 add_objcflags(){
 730     append OBJCFLAGS $($objcflags_filter "$@")
 731 }
 732
 733 add_ldflags(){
 734     append LDFLAGS $($ldflags_filter "$@")
 735 }
 736
 737 add_ldexeflags(){
 738     append LDEXEFLAGS $($ldflags_filter "$@")
 739 }
 740
 741 add_stripflags(){
 742     append STRIPFLAGS "$@"
 743 }
 744
 745 add_extralibs(){
 746     prepend extralibs $($ldflags_filter "$@")
 747 }
 748
 749 add_host_cppflags(){
 750     append host_cppflags "$@"
 751 }
 752
 753 add_host_cflags(){
 754     append host_cflags $($host_cflags_filter "$@")
 755 }
 756
 757 add_host_ldflags(){
 758     append host_ldflags $($host_ldflags_filter "$@")
 759 }
 760
 761 add_compat(){
 762     append compat_objs $1
 763     shift
 764     map 'add_cppflags -D$v' "$@"
 765 }
 766
 767 check_cmd(){
 768     log "$@"
 769     "$@" >> $logfile 2>&1
 770 }
 771
 772 cc_o(){
 773     eval printf '%s\\n' $CC_O
 774 }
 775
 776 cc_e(){
 777     eval printf '%s\\n' $CC_E
 778 }
 779
 780 check_cc(){
 781     log check_cc "$@"
 782     cat > $TMPC
 783     log_file $TMPC
 784     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 785 }
 786
 787 check_objcc(){
 788     log check_objcc "$@"
 789     cat > $TMPC
 790     log_file $TMPC
 791     check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
 792 }
 793
 794 check_cpp(){
 795     log check_cpp "$@"
 796     cat > $TMPC
 797     log_file $TMPC
 798     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 799 }
 800
 801 as_o(){
 802     eval printf '%s\\n' $AS_O
 803 }
 804
 805 check_as(){
 806     log check_as "$@"
 807     cat > $TMPS
 808     log_file $TMPS
 809     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 810 }
 811
 812 check_inline_asm(){
 813     log check_inline_asm "$@"
 814     name="$1"
 815     code="$2"
 816     shift 2
 817     disable $name
 818     check_cc "$@" <<EOF && enable $name
 819 void foo(void){ __asm__ volatile($code); }
 820 EOF
 821 }
 822
 823 check_insn(){
 824     log check_insn "$@"
 825     check_inline_asm ${1}_inline "\"$2\""
 826     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 827 }
 828
 829 check_yasm(){
 830     log check_yasm "$@"
 831     echo "$1" > $TMPS
 832     log_file $TMPS
 833     shift 1
 834     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 835 }
 836
 837 ld_o(){
 838     eval printf '%s\\n' $LD_O
 839 }
 840
 841 check_ld(){
 842     log check_ld "$@"
 843     flags=$(filter_out '-l*' "$@")
 844     libs=$(filter '-l*' "$@")
 845     check_cc $($cflags_filter $flags) || return
 846     flags=$($ldflags_filter $flags)
 847     libs=$($ldflags_filter $libs)
 848     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 849 }
 850
 851 print_include(){
 852     hdr=$1
 853     test "${hdr%.h}" = "${hdr}" &&
 854         echo "#include $hdr"    ||
 855         echo "#include <$hdr>"
 856 }
 857
 858 check_code(){
 859     log check_code "$@"
 860     check=$1
 861     headers=$2
 862     code=$3
 863     shift 3
 864     {
 865         for hdr in $headers; do
 866             print_include $hdr
 867         done
 868         echo "int main(void) { $code; return 0; }"
 869     } | check_$check "$@"
 870 }
 871
 872 check_cppflags(){
 873     log check_cppflags "$@"
 874     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
 875 int x;
 876 EOF
 877 }
 878
 879 test_cflags(){
 880     log test_cflags "$@"
 881     set -- $($cflags_filter "$@")
 882     check_cc "$@" <<EOF
 883 int x;
 884 EOF
 885 }
 886
 887 check_cflags(){
 888     log check_cflags "$@"
 889     test_cflags "$@" && add_cflags "$@"
 890 }
 891
 892 test_objcflags(){
 893     log test_objcflags "$@"
 894     set -- $($objcflags_filter "$@")
 895     check_objcc "$@" <<EOF
 896 int x;
 897 EOF
 898 }
 899
 900 check_objcflags(){
 901     log check_objcflags "$@"
 902     test_objcflags "$@" && add_objcflags "$@"
 903 }
 904
 905 test_ldflags(){
 906     log test_ldflags "$@"
 907     check_ld "$@" <<EOF
 908 int main(void){ return 0; }
 909 EOF
 910 }
 911
 912 check_ldflags(){
 913     log check_ldflags "$@"
 914     test_ldflags "$@" && add_ldflags "$@"
 915 }
 916
 917 test_stripflags(){
 918     log test_stripflags "$@"
 919     # call check_cc to get a fresh TMPO
 920     check_cc <<EOF
 921 int main(void) { return 0; }
 922 EOF
 923     check_cmd $strip $STRIPFLAGS "$@" $TMPO
 924 }
 925
 926 check_stripflags(){
 927     log check_stripflags "$@"
 928     test_stripflags "$@" && add_stripflags "$@"
 929 }
 930
 931 check_header(){
 932     log check_header "$@"
 933     header=$1
 934     shift
 935     disable_safe $header
 936     check_cpp "$@" <<EOF && enable_safe $header
 937 #include <$header>
 938 int x;
 939 EOF
 940 }
 941
 942 check_func(){
 943     log check_func "$@"
 944     func=$1
 945     shift
 946     disable $func
 947     check_ld "$@" <<EOF && enable $func
 948 extern int $func();
 949 int main(void){ $func(); }
 950 EOF
 951 }
 952
 953 check_mathfunc(){
 954     log check_mathfunc "$@"
 955     func=$1
 956     narg=$2
 957     shift 2
 958     test $narg = 2 && args="f, g" || args="f"
 959     disable $func
 960     check_ld "$@" <<EOF && enable $func
 961 #include <math.h>
 962 float foo(float f, float g) { return $func($args); }
 963 int main(void){ return 0; }
 964 EOF
 965 }
 966
 967 check_func_headers(){
 968     log check_func_headers "$@"
 969     headers=$1
 970     funcs=$2
 971     shift 2
 972     {
 973         for hdr in $headers; do
 974             print_include $hdr
 975         done
 976         for func in $funcs; do
 977             echo "long check_$func(void) { return (long) $func; }"
 978         done
 979         echo "int main(void) { return 0; }"
 980     } | check_ld "$@" && enable $funcs && enable_safe $headers
 981 }
 982
 983 check_cpp_condition(){
 984     log check_cpp_condition "$@"
 985     header=$1
 986     condition=$2
 987     shift 2
 988     check_cpp "$@" <<EOF
 989 #include <$header>
 990 #if !($condition)
 991 #error "unsatisfied condition: $condition"
 992 #endif
 993 EOF
 994 }
 995
 996 test_cflags_cpp(){
 997     log test_cflags_cpp "$@"
 998     flags=$1
 999     condition=$2
1000     shift 2
1001     set -- $($cflags_filter "$flags")
1002     check_cpp "$@" <<EOF
1003 #if !($condition)
1004 #error "unsatisfied condition: $condition"
1005 #endif
1006 EOF
1007 }
1008
1009 check_lib(){
1010     log check_lib "$@"
1011     name="$1"
1012     headers="$2"
1013     funcs="$3"
1014     shift 3
1015     disable $name
1016     check_func_headers "$headers" "$funcs" "$@" &&
1017         enable $name && add_extralibs "$@"
1018 }
1019
1020 check_pkg_config(){
1021     log check_pkg_config "$@"
1022     pkg_version="$1"
1023     pkg="${1%% *}"
1024     headers="$2"
1025     funcs="$3"
1026     shift 3
1027     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1028     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1029     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1030     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1031         set_safe "${pkg}_cflags"    $pkg_cflags &&
1032         set_safe "${pkg}_extralibs" $pkg_libs
1033 }
1034
1035 check_exec(){
1036     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1037 }
1038
1039 check_exec_crash(){
1040     log check_exec_crash "$@"
1041     code=$(cat)
1042
1043     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1044     # are safe but may not be available everywhere.  Thus we use
1045     # raise(SIGTERM) instead.  The check is run in a subshell so we
1046     # can redirect the "Terminated" message from the shell.  SIGBUS
1047     # is not defined by standard C so it is used conditionally.
1048
1049     (check_exec "$@") >> $logfile 2>&1 <<EOF
1050 #include <signal.h>
1051 static void sighandler(int sig){
1052     raise(SIGTERM);
1053 }
1054 int foo(void){
1055     $code
1056 }
1057 int (*func_ptr)(void) = foo;
1058 int main(void){
1059     signal(SIGILL, sighandler);
1060     signal(SIGFPE, sighandler);
1061     signal(SIGSEGV, sighandler);
1062 #ifdef SIGBUS
1063     signal(SIGBUS, sighandler);
1064 #endif
1065     return func_ptr();
1066 }
1067 EOF
1068 }
1069
1070 check_type(){
1071     log check_type "$@"
1072     headers=$1
1073     type=$2
1074     shift 2
1075     disable_safe "$type"
1076     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1077 }
1078
1079 check_struct(){
1080     log check_struct "$@"
1081     headers=$1
1082     struct=$2
1083     member=$3
1084     shift 3
1085     disable_safe "${struct}_${member}"
1086     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1087         enable_safe "${struct}_${member}"
1088 }
1089
1090 check_builtin(){
1091     log check_builtin "$@"
1092     name=$1
1093     headers=$2
1094     builtin=$3
1095     shift 3
1096     disable "$name"
1097     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1098 }
1099
1100 check_compile_assert(){
1101     log check_compile_assert "$@"
1102     name=$1
1103     headers=$2
1104     condition=$3
1105     shift 3
1106     disable "$name"
1107     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1108 }
1109
1110 require(){
1111     log require "$@"
1112     name_version="$1"
1113     name="${1%% *}"
1114     headers="$2"
1115     func="$3"
1116     shift 3
1117     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1118 }
1119
1120 require_pkg_config(){
1121     log require_pkg_config "$@"
1122     pkg_version="$1"
1123     pkg="${1%% *}"
1124     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1125     add_cflags    $(get_safe "${pkg}_cflags")
1126     add_extralibs $(get_safe "${pkg}_extralibs")
1127 }
1128
1129 hostcc_e(){
1130     eval printf '%s\\n' $HOSTCC_E
1131 }
1132
1133 hostcc_o(){
1134     eval printf '%s\\n' $HOSTCC_O
1135 }
1136
1137 check_host_cc(){
1138     log check_host_cc "$@"
1139     cat > $TMPC
1140     log_file $TMPC
1141     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1142 }
1143
1144 check_host_cpp(){
1145     log check_host_cpp "$@"
1146     cat > $TMPC
1147     log_file $TMPC
1148     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1149 }
1150
1151 check_host_cppflags(){
1152     log check_host_cppflags "$@"
1153     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1154 int x;
1155 EOF
1156 }
1157
1158 check_host_cflags(){
1159     log check_host_cflags "$@"
1160     set -- $($host_cflags_filter "$@")
1161     check_host_cc "$@" <<EOF && append host_cflags "$@"
1162 int x;
1163 EOF
1164 }
1165
1166 check_host_cpp_condition(){
1167     log check_host_cpp_condition "$@"
1168     header=$1
1169     condition=$2
1170     shift 2
1171     check_host_cpp "$@" <<EOF
1172 #include <$header>
1173 #if !($condition)
1174 #error "unsatisfied condition: $condition"
1175 #endif
1176 EOF
1177 }
1178
1179 apply(){
1180     file=$1
1181     shift
1182     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1183 }
1184
1185 cp_if_changed(){
1186     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1187     mkdir -p "$(dirname $2)"
1188     cp -f "$1" "$2"
1189 }
1190
1191 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1192 # system-dependent things.
1193
1194 AVCODEC_COMPONENTS="
1195     bsfs
1196     decoders
1197     encoders
1198     hwaccels
1199     parsers
1200 "
1201
1202 AVDEVICE_COMPONENTS="
1203     indevs
1204     outdevs
1205 "
1206 AVFILTER_COMPONENTS="
1207     filters
1208 "
1209 AVFORMAT_COMPONENTS="
1210     demuxers
1211     muxers
1212     protocols
1213 "
1214
1215 AVRESAMPLE_COMPONENTS=""
1216 AVUTIL_COMPONENTS=""
1217
1218 COMPONENT_LIST="
1219     $AVCODEC_COMPONENTS
1220     $AVDEVICE_COMPONENTS
1221     $AVFILTER_COMPONENTS
1222     $AVFORMAT_COMPONENTS
1223     $AVRESAMPLE_COMPONENTS
1224     $AVUTIL_COMPONENTS
1225 "
1226
1227 EXAMPLE_LIST="
1228     decode_audio_example
1229     decode_video_example
1230     encode_audio_example
1231     encode_video_example
1232     filter_audio_example
1233     metadata_example
1234     output_example
1235     qsvdec_example
1236     transcode_aac_example
1237 "
1238
1239 HWACCEL_LIBRARY_NONFREE_LIST="
1240     cuda
1241     libnpp
1242 "
1243 HWACCEL_LIBRARY_LIST="
1244     $HWACCEL_LIBRARY_NONFREE_LIST
1245     d3d11va
1246     dxva2
1247     libmfx
1248     mmal
1249     nvenc
1250     omx
1251     vaapi
1252     vda
1253     vdpau
1254 "
1255
1256 EXTERNAL_LIBRARY_GPL_LIST="
1257     libcdio
1258     libx264
1259     libx265
1260     libxavs
1261     libxvid
1262 "
1263
1264 EXTERNAL_LIBRARY_NONFREE_LIST="
1265     libfaac
1266     libfdk_aac
1267     openssl
1268 "
1269
1270 EXTERNAL_LIBRARY_VERSION3_LIST="
1271     libopencore_amrnb
1272     libopencore_amrwb
1273     libvo_aacenc
1274     libvo_amrwbenc
1275 "
1276
1277 EXTERNAL_LIBRARY_LIST="
1278     $EXTERNAL_LIBRARY_GPL_LIST
1279     $EXTERNAL_LIBRARY_NONFREE_LIST
1280     $EXTERNAL_LIBRARY_VERSION3_LIST
1281     avisynth
1282     avxsynth
1283     bzlib
1284     frei0r
1285     gnutls
1286     libbs2b
1287     libdc1394
1288     libdcadec
1289     libfontconfig
1290     libfreetype
1291     libgsm
1292     libhdcd
1293     libilbc
1294     libkvazaar
1295     libmp3lame
1296     libopencv
1297     libopenh264
1298     libopenjpeg
1299     libopus
1300     libpulse
1301     librtmp
1302     libschroedinger
1303     libsnappy
1304     libspeex
1305     libtheora
1306     libtwolame
1307     libvorbis
1308     libvpx
1309     libwavpack
1310     libwebp
1311     libxcb
1312     libxcb_shm
1313     libxcb_xfixes
1314     zlib
1315 "
1316
1317 FEATURE_LIST="
1318     gray
1319     hardcoded_tables
1320     omx_rpi
1321     runtime_cpudetect
1322     safe_bitstream_reader
1323     shared
1324     small
1325     sram
1326     static
1327     swscale_alpha
1328 "
1329
1330 LIBRARY_LIST="
1331     avcodec
1332     avdevice
1333     avfilter
1334     avformat
1335     avresample
1336     avutil
1337     swscale
1338 "
1339
1340 LICENSE_LIST="
1341     gpl
1342     nonfree
1343     version3
1344 "
1345
1346 PROGRAM_LIST="
1347     avconv
1348     avplay
1349     avprobe
1350 "
1351
1352 SUBSYSTEM_LIST="
1353     dct
1354     doc
1355     error_resilience
1356     faan
1357     fft
1358     lsp
1359     lzo
1360     mdct
1361     network
1362     rdft
1363 "
1364
1365 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1366 CONFIG_LIST="
1367     $EXAMPLE_LIST
1368     $EXTERNAL_LIBRARY_LIST
1369     $HWACCEL_LIBRARY_LIST
1370     $FEATURE_LIST
1371     $LICENSE_LIST
1372     $LIBRARY_LIST
1373     $PROGRAM_LIST
1374     $SUBSYSTEM_LIST
1375     neon_clobber_test
1376     pic
1377     pod2man
1378     texi2html
1379     thumb
1380     valgrind_backtrace
1381     xmm_clobber_test
1382     $COMPONENT_LIST
1383 "
1384
1385 THREADS_LIST="
1386     pthreads
1387     w32threads
1388 "
1389
1390 ATOMICS_LIST="
1391     atomics_gcc
1392     atomics_suncc
1393     atomics_win32
1394 "
1395
1396 ARCH_LIST="
1397     aarch64
1398     alpha
1399     arm
1400     avr32
1401     avr32_ap
1402     avr32_uc
1403     bfin
1404     ia64
1405     m68k
1406     mips
1407     mips64
1408     parisc
1409     ppc
1410     ppc64
1411     s390
1412     sh4
1413     sparc
1414     sparc64
1415     tilegx
1416     tilepro
1417     tomi
1418     x86
1419     x86_32
1420     x86_64
1421 "
1422
1423 ARCH_EXT_LIST_ARM="
1424     armv5te
1425     armv6
1426     armv6t2
1427     armv8
1428     neon
1429     vfp
1430     vfpv3
1431 "
1432
1433 ARCH_EXT_LIST_X86_SIMD="
1434     amd3dnow
1435     amd3dnowext
1436     avx
1437     avx2
1438     fma3
1439     fma4
1440     mmx
1441     mmxext
1442     sse
1443     sse2
1444     sse3
1445     sse4
1446     sse42
1447     ssse3
1448     xop
1449 "
1450
1451 ARCH_EXT_LIST_PPC="
1452     altivec
1453     dcbzl
1454     ldbrx
1455     power8
1456     ppc4xx
1457     vsx
1458 "
1459
1460 ARCH_EXT_LIST_X86="
1461     $ARCH_EXT_LIST_X86_SIMD
1462     cpunop
1463     i686
1464 "
1465
1466 ARCH_EXT_LIST_MIPS="
1467     loongson
1468     mips32r1
1469     mips64r1
1470     mips32r2
1471     mips64r2
1472     mips32r6
1473     mips64r6
1474 "
1475
1476 ARCH_EXT_LIST="
1477     $ARCH_EXT_LIST_ARM
1478     $ARCH_EXT_LIST_MIPS
1479     $ARCH_EXT_LIST_PPC
1480     $ARCH_EXT_LIST_X86
1481     vis
1482 "
1483
1484 ARCH_FEATURES="
1485     aligned_stack
1486     fast_64bit
1487     fast_clz
1488     fast_cmov
1489     local_aligned_8
1490     local_aligned_16
1491     local_aligned_32
1492     simd_align_16
1493     simd_align_32
1494 "
1495
1496 BUILTIN_LIST="
1497     atomic_cas_ptr
1498     machine_rw_barrier
1499     MemoryBarrier
1500     mm_empty
1501     rdtsc
1502     sem_timedwait
1503     sync_val_compare_and_swap
1504 "
1505 HAVE_LIST_CMDLINE="
1506     inline_asm
1507     symver
1508     yasm
1509 "
1510
1511 HAVE_LIST_PUB="
1512     bigendian
1513     fast_unaligned
1514 "
1515
1516 HEADERS_LIST="
1517     AVFoundation_AVFoundation_h
1518     alsa_asoundlib_h
1519     altivec_h
1520     arpa_inet_h
1521     cdio_paranoia_h
1522     cdio_paranoia_paranoia_h
1523     d3d11_h
1524     dispatch_dispatch_h
1525     dev_bktr_ioctl_bt848_h
1526     dev_bktr_ioctl_meteor_h
1527     dev_ic_bt8xx_h
1528     dev_video_bktr_ioctl_bt848_h
1529     dev_video_meteor_ioctl_meteor_h
1530     direct_h
1531     dlfcn_h
1532     dxva_h
1533     gsm_h
1534     io_h
1535     mach_mach_time_h
1536     machine_ioctl_bt848_h
1537     machine_ioctl_meteor_h
1538     malloc_h
1539     poll_h
1540     sndio_h
1541     soundcard_h
1542     stdatomic_h
1543     sys_mman_h
1544     sys_param_h
1545     sys_resource_h
1546     sys_select_h
1547     sys_soundcard_h
1548     sys_time_h
1549     sys_un_h
1550     sys_videoio_h
1551     unistd_h
1552     valgrind_valgrind_h
1553     windows_h
1554     winsock2_h
1555 "
1556
1557 INTRINSICS_LIST="
1558     intrinsics_neon
1559 "
1560
1561 MATH_FUNCS="
1562     atanf
1563     atan2f
1564     cbrtf
1565     cosf
1566     exp2
1567     exp2f
1568     expf
1569     isinf
1570     isnan
1571     ldexpf
1572     llrint
1573     llrintf
1574     log2
1575     log2f
1576     log10f
1577     lrint
1578     lrintf
1579     powf
1580     rint
1581     round
1582     roundf
1583     sinf
1584     trunc
1585     truncf
1586 "
1587
1588 SYSTEM_FUNCS="
1589     aligned_malloc
1590     clock_gettime
1591     closesocket
1592     CommandLineToArgvW
1593     CoTaskMemFree
1594     CryptGenRandom
1595     dlopen
1596     fcntl
1597     flt_lim
1598     fork
1599     getaddrinfo
1600     gethrtime
1601     getopt
1602     GetProcessAffinityMask
1603     GetProcessMemoryInfo
1604     GetProcessTimes
1605     getrusage
1606     GetSystemTimeAsFileTime
1607     gettimeofday
1608     gmtime_r
1609     inet_aton
1610     isatty
1611     jack_port_get_latency_range
1612     LoadLibrary
1613     localtime_r
1614     mach_absolute_time
1615     MapViewOfFile
1616     memalign
1617     mkstemp
1618     mmap
1619     mprotect
1620     nanosleep
1621     posix_memalign
1622     sched_getaffinity
1623     SetConsoleTextAttribute
1624     setmode
1625     setrlimit
1626     Sleep
1627     strerror_r
1628     sysconf
1629     sysctl
1630     usleep
1631     VirtualAlloc
1632 "
1633
1634 TOOLCHAIN_FEATURES="
1635     as_dn_directive
1636     as_fpu_directive
1637     as_func
1638     as_object_arch
1639     asm_mod_q
1640     attribute_may_alias
1641     attribute_packed
1642     blocks_extension
1643     ebp_available
1644     ebx_available
1645     gnu_as
1646     ibm_asm
1647     inline_asm_labels
1648     pragma_deprecated
1649     symver_asm_label
1650     symver_gnu_asm
1651     vfp_args
1652     xform_asm
1653     xmm_clobbers
1654 "
1655
1656 TYPES_LIST="
1657     CONDITION_VARIABLE_Ptr
1658     socklen_t
1659     struct_addrinfo
1660     struct_group_source_req
1661     struct_ip_mreq_source
1662     struct_ipv6_mreq
1663     struct_pollfd
1664     struct_rusage_ru_maxrss
1665     struct_sockaddr_in6
1666     struct_sockaddr_sa_len
1667     struct_sockaddr_storage
1668     struct_v4l2_frmivalenum_discrete
1669 "
1670
1671 HAVE_LIST="
1672     $ARCH_EXT_LIST
1673     $(add_suffix _external $ARCH_EXT_LIST)
1674     $(add_suffix _inline   $ARCH_EXT_LIST)
1675     $ARCH_FEATURES
1676     $BUILTIN_LIST
1677     $HAVE_LIST_CMDLINE
1678     $HAVE_LIST_PUB
1679     $HEADERS_LIST
1680     $INTRINSICS_LIST
1681     $MATH_FUNCS
1682     $SYSTEM_FUNCS
1683     $THREADS_LIST
1684     $TOOLCHAIN_FEATURES
1685     $TYPES_LIST
1686     dos_paths
1687     dxva2_lib
1688     libc_msvcrt
1689     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1690     sdl
1691     section_data_rel_ro
1692     threads
1693     vaapi_drm
1694     vaapi_x11
1695     vdpau_x11
1696 "
1697
1698 # options emitted with CONFIG_ prefix but not available on the command line
1699 CONFIG_EXTRA="
1700     aandcttables
1701     ac3dsp
1702     audio_frame_queue
1703     audiodsp
1704     blockdsp
1705     bswapdsp
1706     cabac
1707     dirac_parse
1708     dvprofile
1709     faandct
1710     faanidct
1711     fdctdsp
1712     flacdsp
1713     fmtconvert
1714     g722dsp
1715     gmp
1716     golomb
1717     gplv3
1718     h263dsp
1719     h264chroma
1720     h264dsp
1721     h264parse
1722     h264pred
1723     h264qpel
1724     hevc_ps
1725     hpeldsp
1726     huffman
1727     huffyuvdsp
1728     huffyuvencdsp
1729     idctdsp
1730     iirfilter
1731     imdct15
1732     intrax8
1733     iso_media
1734     ividsp
1735     jpegtables
1736     libx262
1737     lgplv3
1738     lpc
1739     lzf
1740     me_cmp
1741     mpeg_er
1742     mpegaudio
1743     mpegaudiodsp
1744     mpegaudioheader
1745     mpegvideo
1746     mpegvideoenc
1747     mss34dsp
1748     pixblockdsp
1749     qpeldsp
1750     qsv
1751     qsvdec
1752     qsvenc
1753     rangecoder
1754     riffdec
1755     riffenc
1756     rtpdec
1757     rtpenc_chain
1758     rv34dsp
1759     sinewin
1760     snappy
1761     srtp
1762     startcode
1763     texturedsp
1764     texturedspenc
1765     tpeldsp
1766     vaapi_encode
1767     vc1dsp
1768     videodsp
1769     vp3dsp
1770     vp56dsp
1771     vp8dsp
1772     wma_freqs
1773     wmv2dsp
1774 "
1775
1776 CMDLINE_SELECT="
1777     $ARCH_EXT_LIST
1778     $CONFIG_LIST
1779     $HAVE_LIST_CMDLINE
1780     $THREADS_LIST
1781     asm
1782     cross_compile
1783     debug
1784     extra_warnings
1785     logging
1786     lto
1787     optimizations
1788     rpath
1789 "
1790
1791 PATHS_LIST="
1792     bindir
1793     datadir
1794     docdir
1795     incdir
1796     libdir
1797     mandir
1798     prefix
1799     shlibdir
1800 "
1801
1802 CMDLINE_SET="
1803     $PATHS_LIST
1804     ar
1805     arch
1806     as
1807     cc
1808     objcc
1809     cpu
1810     cross_prefix
1811     custom_allocator
1812     dep_cc
1813     env
1814     extra_version
1815     host_cc
1816     host_cflags
1817     host_extralibs
1818     host_ld
1819     host_ldflags
1820     host_os
1821     ignore_tests
1822     ld
1823     logfile
1824     malloc_prefix
1825     nm
1826     optflags
1827     pkg_config
1828     pkg_config_flags
1829     random_seed
1830     samples
1831     sysinclude
1832     sysroot
1833     target_exec
1834     target_os
1835     target_path
1836     target_samples
1837     toolchain
1838 "
1839
1840 CMDLINE_APPEND="
1841     extra_cflags
1842     extra_objcflags
1843     host_cppflags
1844 "
1845
1846 # code dependency declarations
1847
1848 # architecture extensions
1849
1850 armv5te_deps="arm"
1851 armv6_deps="arm"
1852 armv6t2_deps="arm"
1853 armv8_deps="aarch64"
1854 neon_deps_any="aarch64 arm"
1855 intrinsics_neon_deps="neon"
1856 vfp_deps_any="aarch64 arm"
1857 vfpv3_deps="vfp"
1858
1859 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1860
1861 altivec_deps="ppc"
1862 ppc4xx_deps="ppc"
1863 vsx_deps="altivec"
1864 power8_deps="vsx"
1865
1866 cpunop_deps="i686"
1867 x86_64_select="i686"
1868 x86_64_suggest="fast_cmov"
1869
1870 amd3dnow_deps="mmx"
1871 amd3dnowext_deps="amd3dnow"
1872 i686_deps="x86"
1873 mmx_deps="x86"
1874 mmxext_deps="mmx"
1875 sse_deps="mmxext"
1876 sse2_deps="sse"
1877 sse3_deps="sse2"
1878 ssse3_deps="sse3"
1879 sse4_deps="ssse3"
1880 sse42_deps="sse4"
1881 avx_deps="sse42"
1882 xop_deps="avx"
1883 fma3_deps="avx"
1884 fma4_deps="avx"
1885 avx2_deps="avx"
1886
1887 mmx_external_deps="yasm"
1888 mmx_inline_deps="inline_asm"
1889 mmx_suggest="mmx_external mmx_inline"
1890
1891 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1892     eval dep=\$${ext}_deps
1893     eval ${ext}_external_deps='"${dep}_external"'
1894     eval ${ext}_inline_deps='"${dep}_inline"'
1895     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1896 done
1897
1898 aligned_stack_if_any="aarch64 ppc x86"
1899 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1900 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1901 fast_unaligned_if_any="aarch64 ppc x86"
1902 simd_align_16_if_any="altivec neon sse"
1903 simd_align_32_if_any="avx"
1904
1905 # system capabilities
1906 symver_if_any="symver_asm_label symver_gnu_asm"
1907 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1908
1909 # threading support
1910 atomics_gcc_if="sync_val_compare_and_swap"
1911 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1912 atomics_win32_if="MemoryBarrier"
1913 atomics_native_if_any="$ATOMICS_LIST"
1914 w32threads_deps="atomics_native"
1915 threads_if_any="$THREADS_LIST"
1916
1917 # subsystems
1918 dct_select="rdft"
1919 dirac_parse_select="golomb"
1920 error_resilience_select="me_cmp"
1921 faandct_deps="faan fdctdsp"
1922 faanidct_deps="faan idctdsp"
1923 h264dsp_select="startcode"
1924 hevc_ps_select="golomb"
1925 intrax8_select="blockdsp idctdsp"
1926 mdct_select="fft"
1927 rdft_select="fft"
1928 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1929 mpeg_er_select="error_resilience"
1930 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1931 mpegaudiodsp_select="dct"
1932 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1933 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1934 vc1dsp_select="h264chroma qpeldsp startcode"
1935
1936 # decoders / encoders
1937 aac_decoder_select="imdct15 mdct sinewin"
1938 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1939 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1940 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1941 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1942 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1943 adpcm_g722_decoder_select="g722dsp"
1944 adpcm_g722_encoder_select="g722dsp"
1945 aic_decoder_select="golomb idctdsp"
1946 alac_encoder_select="lpc"
1947 als_decoder_select="bswapdsp"
1948 amrnb_decoder_select="lsp"
1949 amrwb_decoder_select="lsp"
1950 amv_decoder_select="sp5x_decoder"
1951 ape_decoder_select="bswapdsp"
1952 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1953 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1954 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1955 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1956 atrac1_decoder_select="mdct sinewin"
1957 atrac3_decoder_select="mdct"
1958 atrac3p_decoder_select="mdct sinewin"
1959 bink_decoder_select="blockdsp hpeldsp"
1960 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1961 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1962 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1963 cllc_decoder_select="bswapdsp"
1964 comfortnoise_encoder_select="lpc"
1965 cook_decoder_select="audiodsp mdct sinewin"
1966 cscd_decoder_select="lzo"
1967 cscd_decoder_suggest="zlib"
1968 dca_decoder_select="fmtconvert mdct"
1969 dds_decoder_select="texturedsp"
1970 dnxhd_decoder_select="blockdsp idctdsp"
1971 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1972 dvvideo_decoder_select="dvprofile idctdsp"
1973 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1974 dxa_decoder_deps="zlib"
1975 dxv_decoder_select="lzf texturedsp"
1976 eac3_decoder_select="ac3_decoder"
1977 eac3_encoder_select="ac3_encoder"
1978 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1979 eatgq_decoder_select="aandcttables idctdsp"
1980 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1981 exr_decoder_deps="zlib"
1982 ffv1_decoder_select="rangecoder"
1983 ffv1_encoder_select="rangecoder"
1984 ffvhuff_decoder_select="huffyuv_decoder"
1985 ffvhuff_encoder_select="huffyuv_encoder"
1986 fic_decoder_select="golomb"
1987 flac_decoder_select="flacdsp"
1988 flac_encoder_select="bswapdsp flacdsp lpc"
1989 flashsv_decoder_deps="zlib"
1990 flashsv_encoder_deps="zlib"
1991 flashsv2_decoder_deps="zlib"
1992 flv_decoder_select="h263_decoder"
1993 flv_encoder_select="h263_encoder"
1994 fourxm_decoder_select="blockdsp bswapdsp"
1995 fraps_decoder_select="bswapdsp huffman"
1996 g2m_decoder_deps="zlib"
1997 g2m_decoder_select="blockdsp idctdsp jpegtables"
1998 h261_decoder_select="mpeg_er mpegvideo"
1999 h261_encoder_select="aandcttables mpegvideoenc"
2000 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2001 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2002 h263i_decoder_select="h263_decoder"
2003 h263p_encoder_select="h263_encoder"
2004 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2005 h264_decoder_suggest="error_resilience"
2006 hap_decoder_select="snappy texturedsp"
2007 hap_encoder_deps="libsnappy"
2008 hap_encoder_select="texturedspenc"
2009 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2010 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2011 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2012 iac_decoder_select="imc_decoder"
2013 imc_decoder_select="bswapdsp fft mdct sinewin"
2014 indeo3_decoder_select="hpeldsp"
2015 indeo4_decoder_select="ividsp"
2016 indeo5_decoder_select="ividsp"
2017 interplay_video_decoder_select="hpeldsp"
2018 jpegls_decoder_select="mjpeg_decoder"
2019 jv_decoder_select="blockdsp"
2020 lagarith_decoder_select="huffyuvdsp"
2021 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2022 magicyuv_decoder_select="huffyuvdsp"
2023 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2024 metasound_decoder_select="lsp mdct sinewin"
2025 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2026 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2027 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2028 mjpegb_decoder_select="mjpeg_decoder"
2029 mlp_decoder_select="mlp_parser"
2030 motionpixels_decoder_select="bswapdsp"
2031 mp1_decoder_select="mpegaudio"
2032 mp1float_decoder_select="mpegaudio"
2033 mp2_decoder_select="mpegaudio"
2034 mp2float_decoder_select="mpegaudio"
2035 mp3_decoder_select="mpegaudio"
2036 mp3adu_decoder_select="mpegaudio"
2037 mp3adufloat_decoder_select="mpegaudio"
2038 mp3float_decoder_select="mpegaudio"
2039 mp3on4_decoder_select="mpegaudio"
2040 mp3on4float_decoder_select="mpegaudio"
2041 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2042 mpc8_decoder_select="mpegaudiodsp"
2043 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2044 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2045 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2046 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2047 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2048 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2049 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2050 mpeg4_encoder_select="h263_encoder"
2051 msa1_decoder_select="mss34dsp"
2052 msmpeg4v1_decoder_select="h263_decoder"
2053 msmpeg4v2_decoder_select="h263_decoder"
2054 msmpeg4v2_encoder_select="h263_encoder"
2055 msmpeg4v3_decoder_select="h263_decoder"
2056 msmpeg4v3_encoder_select="h263_encoder"
2057 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2058 mts2_decoder_select="mss34dsp"
2059 mxpeg_decoder_select="mjpeg_decoder"
2060 nellymoser_decoder_select="mdct sinewin"
2061 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2062 nuv_decoder_select="idctdsp lzo"
2063 on2avc_decoder_select="mdct"
2064 opus_decoder_deps="avresample"
2065 opus_decoder_select="imdct15"
2066 png_decoder_deps="zlib"
2067 png_encoder_deps="zlib"
2068 png_encoder_select="huffyuvencdsp"
2069 prores_decoder_select="idctdsp"
2070 prores_encoder_select="fdctdsp"
2071 qcelp_decoder_select="lsp"
2072 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2073 ra_144_encoder_select="audio_frame_queue lpc"
2074 ralf_decoder_select="golomb"
2075 rscc_decoder_deps="zlib"
2076 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2077 rv10_encoder_select="h263_encoder"
2078 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2079 rv20_encoder_select="h263_encoder"
2080 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2081 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2082 screenpresso_decoder_deps="zlib"
2083 sipr_decoder_select="lsp"
2084 sp5x_decoder_select="mjpeg_decoder"
2085 svq1_decoder_select="hpeldsp"
2086 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2087 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2088 svq3_decoder_suggest="zlib"
2089 tak_decoder_select="audiodsp"
2090 tdsc_decoder_deps="zlib"
2091 tdsc_decoder_select="mjpeg_decoder"
2092 theora_decoder_select="vp3_decoder"
2093 thp_decoder_select="mjpeg_decoder"
2094 tiff_decoder_suggest="zlib"
2095 tiff_encoder_suggest="zlib"
2096 truehd_decoder_select="mlp_decoder"
2097 truemotion2_decoder_select="bswapdsp"
2098 truespeech_decoder_select="bswapdsp"
2099 tscc_decoder_deps="zlib"
2100 txd_decoder_select="texturedsp"
2101 twinvq_decoder_select="mdct lsp sinewin"
2102 utvideo_decoder_select="bswapdsp"
2103 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2104 vble_decoder_select="huffyuvdsp"
2105 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2106 vc1image_decoder_select="vc1_decoder"
2107 vorbis_decoder_select="mdct"
2108 vorbis_encoder_select="mdct"
2109 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2110 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2111 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2112 vp6a_decoder_select="vp6_decoder"
2113 vp6f_decoder_select="vp6_decoder"
2114 vp7_decoder_select="h264pred videodsp vp8dsp"
2115 vp8_decoder_select="h264pred videodsp vp8dsp"
2116 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2117 webp_decoder_select="vp8_decoder"
2118 wmapro_decoder_select="mdct sinewin wma_freqs"
2119 wmav1_decoder_select="mdct sinewin wma_freqs"
2120 wmav1_encoder_select="mdct sinewin wma_freqs"
2121 wmav2_decoder_select="mdct sinewin wma_freqs"
2122 wmav2_encoder_select="mdct sinewin wma_freqs"
2123 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2124 wmv1_decoder_select="h263_decoder"
2125 wmv1_encoder_select="h263_encoder"
2126 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2127 wmv2_encoder_select="h263_encoder wmv2dsp"
2128 wmv3_decoder_select="vc1_decoder"
2129 wmv3image_decoder_select="wmv3_decoder"
2130 zerocodec_decoder_deps="zlib"
2131 zlib_decoder_deps="zlib"
2132 zlib_encoder_deps="zlib"
2133 zmbv_decoder_deps="zlib"
2134 zmbv_encoder_deps="zlib"
2135
2136 # hardware accelerators
2137 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2138 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2139 dxva2_lib_deps="dxva2"
2140 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2141 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2142
2143 h263_vaapi_hwaccel_deps="vaapi"
2144 h263_vaapi_hwaccel_select="h263_decoder"
2145 h264_d3d11va_hwaccel_deps="d3d11va"
2146 h264_d3d11va_hwaccel_select="h264_decoder"
2147 h264_dxva2_hwaccel_deps="dxva2"
2148 h264_dxva2_hwaccel_select="h264_decoder"
2149 h264_mmal_hwaccel_deps="mmal"
2150 h264_qsv_hwaccel_deps="libmfx"
2151 h264_vaapi_hwaccel_deps="vaapi"
2152 h264_vaapi_hwaccel_select="h264_decoder"
2153 h264_vda_hwaccel_deps="vda"
2154 h264_vda_hwaccel_select="h264_decoder"
2155 h264_vda_old_hwaccel_deps="vda"
2156 h264_vda_old_hwaccel_select="h264_decoder"
2157 h264_vdpau_hwaccel_deps="vdpau"
2158 h264_vdpau_hwaccel_select="h264_decoder"
2159 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2160 hevc_d3d11va_hwaccel_select="hevc_decoder"
2161 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2162 hevc_dxva2_hwaccel_select="hevc_decoder"
2163 hevc_qsv_hwaccel_deps="libmfx"
2164 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2165 hevc_vaapi_hwaccel_select="hevc_decoder"
2166 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2167 hevc_vdpau_hwaccel_select="hevc_decoder"
2168 mpeg1_vdpau_hwaccel_deps="vdpau"
2169 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2170 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2171 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2172 mpeg2_dxva2_hwaccel_deps="dxva2"
2173 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2174 mpeg2_mmal_hwaccel_deps="mmal"
2175 mpeg2_qsv_hwaccel_deps="libmfx"
2176 mpeg2_vaapi_hwaccel_deps="vaapi"
2177 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2178 mpeg2_vdpau_hwaccel_deps="vdpau"
2179 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2180 mpeg4_vaapi_hwaccel_deps="vaapi"
2181 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2182 mpeg4_vdpau_hwaccel_deps="vdpau"
2183 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2184 vc1_d3d11va_hwaccel_deps="d3d11va"
2185 vc1_d3d11va_hwaccel_select="vc1_decoder"
2186 vc1_dxva2_hwaccel_deps="dxva2"
2187 vc1_dxva2_hwaccel_select="vc1_decoder"
2188 vc1_mmal_hwaccel_deps="mmal"
2189 vc1_qsv_hwaccel_deps="libmfx"
2190 vc1_vaapi_hwaccel_deps="vaapi"
2191 vc1_vaapi_hwaccel_select="vc1_decoder"
2192 vc1_vdpau_hwaccel_deps="vdpau"
2193 vc1_vdpau_hwaccel_select="vc1_decoder"
2194 vp8_qsv_hwaccel_deps="libmfx"
2195 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2196 vp8_vaapi_hwaccel_select="vp8_decoder"
2197 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2198 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2199 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2200 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2201
2202 # hardware-accelerated codecs
2203 nvenc_deps_any="dlopen LoadLibrary"
2204 nvenc_extralibs='$ldl'
2205 omx_deps="dlopen pthreads"
2206 omx_extralibs='$ldl'
2207 omx_rpi_select="omx"
2208 qsvdec_select="qsv"
2209 qsvenc_select="qsv"
2210 vaapi_encode_deps="vaapi"
2211
2212 hwupload_cuda_filter_deps="cuda"
2213 scale_npp_filter_deps="cuda libnpp"
2214
2215 h264_mmal_decoder_deps="mmal"
2216 h264_nvenc_encoder_deps="nvenc"
2217 h264_omx_encoder_deps="omx"
2218 h264_qsv_decoder_deps="libmfx"
2219 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2220 h264_qsv_encoder_deps="libmfx"
2221 h264_qsv_encoder_select="qsvenc"
2222 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2223 h264_vaapi_encoder_select="vaapi_encode golomb"
2224 hevc_nvenc_encoder_deps="nvenc"
2225 hevc_qsv_decoder_deps="libmfx"
2226 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2227 hevc_qsv_encoder_deps="libmfx"
2228 hevc_qsv_encoder_select="hevc_ps qsvenc"
2229 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2230 hevc_vaapi_encoder_select="vaapi_encode golomb"
2231 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2232 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2233 mpeg2_mmal_decoder_deps="mmal"
2234 mpeg2_qsv_decoder_deps="libmfx"
2235 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2236 mpeg2_qsv_encoder_deps="libmfx"
2237 mpeg2_qsv_encoder_select="qsvenc"
2238 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2239 mpeg2_vaapi_encoder_select="vaapi_encode"
2240 mpeg4_omx_encoder_deps="omx"
2241 vc1_mmal_decoder_deps="mmal"
2242 vc1_qsv_decoder_deps="libmfx"
2243 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2244 vp8_qsv_decoder_deps="libmfx"
2245 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2246 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2247 vp8_vaapi_encoder_select="vaapi_encode"
2248
2249 nvenc_h264_encoder_select="h264_nvenc_encoder"
2250 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2251
2252 # parsers
2253 h264_parser_select="golomb h264dsp h264parse"
2254 hevc_parser_select="hevc_ps"
2255 mpegaudio_parser_select="mpegaudioheader"
2256 mpegvideo_parser_select="mpegvideo"
2257 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2258 vc1_parser_select="vc1dsp"
2259
2260 # bitstream_filters
2261 mjpeg2jpeg_bsf_select="jpegtables"
2262
2263 # external libraries
2264 avisynth_deps="LoadLibrary"
2265 avxsynth_deps="dlopen"
2266 avisynth_demuxer_deps_any="avisynth avxsynth"
2267 avisynth_demuxer_select="riffdec"
2268 libdcadec_decoder_deps="libdcadec"
2269 libfaac_encoder_deps="libfaac"
2270 libfaac_encoder_select="audio_frame_queue"
2271 libfdk_aac_decoder_deps="libfdk_aac"
2272 libfdk_aac_encoder_deps="libfdk_aac"
2273 libfdk_aac_encoder_select="audio_frame_queue"
2274 libgsm_decoder_deps="libgsm"
2275 libgsm_encoder_deps="libgsm"
2276 libgsm_ms_decoder_deps="libgsm"
2277 libgsm_ms_encoder_deps="libgsm"
2278 libilbc_decoder_deps="libilbc"
2279 libilbc_encoder_deps="libilbc"
2280 libkvazaar_encoder_deps="libkvazaar"
2281 libmp3lame_encoder_deps="libmp3lame"
2282 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2283 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2284 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2285 libopencore_amrnb_encoder_select="audio_frame_queue"
2286 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2287 libopenh264_decoder_deps="libopenh264"
2288 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2289 libopenh264_encoder_deps="libopenh264"
2290 libopenjpeg_decoder_deps="libopenjpeg"
2291 libopenjpeg_encoder_deps="libopenjpeg"
2292 libopus_decoder_deps="libopus"
2293 libopus_encoder_deps="libopus"
2294 libopus_encoder_select="audio_frame_queue"
2295 libschroedinger_decoder_deps="libschroedinger"
2296 libschroedinger_encoder_deps="libschroedinger"
2297 libspeex_decoder_deps="libspeex"
2298 libspeex_encoder_deps="libspeex"
2299 libspeex_encoder_select="audio_frame_queue"
2300 libtheora_encoder_deps="libtheora"
2301 libtwolame_encoder_deps="libtwolame"
2302 libvo_aacenc_encoder_deps="libvo_aacenc"
2303 libvo_aacenc_encoder_select="audio_frame_queue"
2304 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2305 libvorbis_encoder_deps="libvorbis"
2306 libvorbis_encoder_select="audio_frame_queue"
2307 libvpx_vp8_decoder_deps="libvpx"
2308 libvpx_vp8_encoder_deps="libvpx"
2309 libvpx_vp9_decoder_deps="libvpx"
2310 libvpx_vp9_encoder_deps="libvpx"
2311 libwavpack_encoder_deps="libwavpack"
2312 libwavpack_encoder_select="audio_frame_queue"
2313 libwebp_encoder_deps="libwebp"
2314 libx262_encoder_deps="libx262"
2315 libx264_encoder_deps="libx264"
2316 libx265_encoder_deps="libx265"
2317 libxavs_encoder_deps="libxavs"
2318 libxvid_encoder_deps="libxvid mkstemp"
2319
2320 # demuxers / muxers
2321 ac3_demuxer_select="ac3_parser"
2322 asf_demuxer_select="riffdec"
2323 asf_muxer_select="riffenc"
2324 asf_stream_muxer_select="asf_muxer"
2325 avi_demuxer_select="iso_media riffdec"
2326 avi_muxer_select="riffenc"
2327 caf_demuxer_select="iso_media riffdec"
2328 dash_muxer_select="mp4_muxer"
2329 dirac_demuxer_select="dirac_parser"
2330 dv_demuxer_select="dvprofile"
2331 dv_muxer_select="dvprofile"
2332 dxa_demuxer_select="riffdec"
2333 eac3_demuxer_select="ac3_parser"
2334 f4v_muxer_select="mov_muxer"
2335 flac_demuxer_select="flac_parser"
2336 hds_muxer_select="flv_muxer"
2337 hls_muxer_select="mpegts_muxer"
2338 ipod_muxer_select="mov_muxer"
2339 ismv_muxer_select="mov_muxer"
2340 matroska_audio_muxer_select="matroska_muxer"
2341 matroska_demuxer_select="iso_media riffdec"
2342 matroska_demuxer_suggest="bzlib lzo zlib"
2343 matroska_muxer_select="iso_media riffenc"
2344 mmf_muxer_select="riffenc"
2345 mov_demuxer_select="iso_media riffdec"
2346 mov_demuxer_suggest="zlib"
2347 mov_muxer_select="iso_media riffenc rtpenc_chain"
2348 mp3_demuxer_select="mpegaudio_parser"
2349 mp3_muxer_select="mpegaudioheader"
2350 mp4_muxer_select="mov_muxer"
2351 mpegts_demuxer_select="iso_media"
2352 mpegts_muxer_select="adts_muxer latm_muxer"
2353 mpegtsraw_demuxer_select="mpegts_demuxer"
2354 mxf_d10_muxer_select="mxf_muxer"
2355 nut_muxer_select="riffenc"
2356 nuv_demuxer_select="riffdec"
2357 oga_muxer_select="ogg_muxer"
2358 ogg_demuxer_select="dirac_parse"
2359 opus_muxer_select="ogg_muxer"
2360 psp_muxer_select="mov_muxer"
2361 rtp_demuxer_select="sdp_demuxer"
2362 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2363 rtsp_demuxer_select="http_protocol rtpdec"
2364 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2365 sap_demuxer_select="sdp_demuxer"
2366 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2367 sdp_demuxer_select="rtpdec"
2368 smoothstreaming_muxer_select="ismv_muxer"
2369 spdif_muxer_select="aac_parser"
2370 spx_muxer_select="ogg_muxer"
2371 swf_demuxer_suggest="zlib"
2372 tak_demuxer_select="tak_parser"
2373 tg2_muxer_select="mov_muxer"
2374 tgp_muxer_select="mov_muxer"
2375 w64_demuxer_select="wav_demuxer"
2376 wav_demuxer_select="riffdec"
2377 wav_muxer_select="riffenc"
2378 webm_muxer_select="iso_media riffenc"
2379 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2380 wtv_demuxer_select="mpegts_demuxer riffdec"
2381 xmv_demuxer_select="riffdec"
2382 xwma_demuxer_select="riffdec"
2383
2384 # indevs / outdevs
2385 alsa_indev_deps="alsa"
2386 alsa_outdev_deps="alsa"
2387 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2388 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2389 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2390 dv1394_indev_deps="dv1394"
2391 dv1394_indev_select="dv_demuxer"
2392 fbdev_indev_deps="linux_fb_h"
2393 jack_indev_deps="jack"
2394 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2395 libcdio_indev_deps="libcdio"
2396 libdc1394_indev_deps="libdc1394"
2397 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2398 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2399 pulse_indev_deps="libpulse"
2400 sndio_indev_deps="sndio"
2401 sndio_outdev_deps="sndio"
2402 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2403 vfwcap_indev_deps="vfw32 vfwcap_defines"
2404 xcbgrab_indev_deps="libxcb"
2405
2406 # protocols
2407 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2408 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2409 ffrtmpcrypt_protocol_select="tcp_protocol"
2410 ffrtmphttp_protocol_deps="!librtmp_protocol"
2411 ffrtmphttp_protocol_select="http_protocol"
2412 gopher_protocol_select="network"
2413 http_protocol_select="tcp_protocol"
2414 httpproxy_protocol_select="tcp_protocol"
2415 https_protocol_select="tls_protocol"
2416 icecast_protocol_select="http_protocol"
2417 librtmp_protocol_deps="librtmp"
2418 librtmpe_protocol_deps="librtmp"
2419 librtmps_protocol_deps="librtmp"
2420 librtmpt_protocol_deps="librtmp"
2421 librtmpte_protocol_deps="librtmp"
2422 mmsh_protocol_select="http_protocol"
2423 mmst_protocol_select="network"
2424 rtmp_protocol_deps="!librtmp_protocol"
2425 rtmp_protocol_select="tcp_protocol"
2426 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2427 rtmps_protocol_deps="!librtmp_protocol"
2428 rtmps_protocol_select="tls_protocol"
2429 rtmpt_protocol_select="ffrtmphttp_protocol"
2430 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2431 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2432 rtp_protocol_select="udp_protocol"
2433 sctp_protocol_deps="struct_sctp_event_subscribe"
2434 sctp_protocol_select="network"
2435 srtp_protocol_select="rtp_protocol srtp"
2436 tcp_protocol_select="network"
2437 tls_gnutls_protocol_deps="gnutls"
2438 tls_gnutls_protocol_select="tcp_protocol"
2439 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2440 tls_openssl_protocol_select="tcp_protocol"
2441 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2442 udp_protocol_select="network"
2443 unix_protocol_deps="sys_un_h"
2444 unix_protocol_select="network"
2445
2446 # filters
2447 asyncts_filter_deps="avresample"
2448 blackframe_filter_deps="gpl"
2449 boxblur_filter_deps="gpl"
2450 bs2b_filter_deps="libbs2b"
2451 cropdetect_filter_deps="gpl"
2452 deinterlace_qsv_filter_deps="libmfx"
2453 deinterlace_vaapi_filter_deps="vaapi"
2454 delogo_filter_deps="gpl"
2455 drawtext_filter_deps="libfreetype"
2456 drawtext_filter_suggest="libfontconfig"
2457 frei0r_filter_deps="frei0r dlopen"
2458 frei0r_filter_extralibs='$ldl'
2459 frei0r_src_filter_deps="frei0r dlopen"
2460 frei0r_src_filter_extralibs='$ldl'
2461 hdcd_filter_deps="libhdcd"
2462 hqdn3d_filter_deps="gpl"
2463 interlace_filter_deps="gpl"
2464 movie_filter_deps="avcodec avformat"
2465 ocv_filter_deps="libopencv"
2466 resample_filter_deps="avresample"
2467 scale_filter_deps="swscale"
2468 scale_qsv_filter_deps="libmfx"
2469 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2470
2471 # examples
2472 decode_audio_example_deps="avcodec avutil"
2473 decode_video_example_deps="avcodec avutil"
2474 encode_audio_example_deps="avcodec avutil"
2475 encode_video_example_deps="avcodec avutil"
2476 filter_audio_example_deps="avfilter avutil"
2477 metadata_example_deps="avformat avutil"
2478 output_example_deps="avcodec avformat avresample avutil swscale"
2479 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2480 transcode_aac_example_deps="avcodec avformat avresample"
2481
2482 # libraries, in linking order
2483 avcodec_deps="avutil"
2484 avcodec_select="null_bsf"
2485 avdevice_deps="avformat avcodec avutil"
2486 avfilter_deps="avutil"
2487 avformat_deps="avcodec avutil"
2488 avformat_suggest="network"
2489 avresample_deps="avutil"
2490 swscale_deps="avutil"
2491
2492 # programs
2493 avconv_deps="avcodec avfilter avformat avresample swscale"
2494 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2495                fps_filter null_filter resample_filter scale_filter
2496                trim_filter"
2497 avplay_deps="avcodec avfilter avformat avresample sdl"
2498 avplay_extralibs='$sdl_extralibs'
2499 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2500 avprobe_deps="avcodec avformat"
2501
2502 # documentation
2503 pod2man_deps="doc"
2504 texi2html_deps="doc"
2505
2506 # default parameters
2507
2508 logfile="avbuild/config.log"
2509
2510 # installation paths
2511 prefix_default="/usr/local"
2512 bindir_default='${prefix}/bin'
2513 datadir_default='${prefix}/share/avconv'
2514 docdir_default='${prefix}/share/doc/libav'
2515 incdir_default='${prefix}/include'
2516 libdir_default='${prefix}/lib'
2517 mandir_default='${prefix}/share/man'
2518 shlibdir_default="$libdir_default"
2519
2520 # toolchain
2521 ar_default="ar"
2522 cc_default="gcc"
2523 host_cc_default="gcc"
2524 ln_s="ln -s -f"
2525 nm_default="nm -g"
2526 objformat="elf"
2527 pkg_config_default=pkg-config
2528 ranlib="ranlib"
2529 strip="strip"
2530 version_script='--version-script'
2531 yasmexe="yasm"
2532
2533 # machine
2534 arch_default=$(uname -m)
2535 cpu="generic"
2536 intrinsics="none"
2537
2538 # OS
2539 target_os_default=$(tolower $(uname -s))
2540 host_os=$target_os_default
2541
2542 # configurable options
2543 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2544
2545 enable asm
2546 enable debug
2547 enable doc
2548 enable faan faandct faanidct
2549 enable optimizations
2550 enable safe_bitstream_reader
2551 enable static
2552 enable swscale_alpha
2553 enable valgrind_backtrace
2554
2555 # By default, enable only those hwaccels that have no external dependencies.
2556 enable d3d11va dxva2 vda vdpau
2557
2558 # build settings
2559 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2560 LIBPREF="lib"
2561 LIBSUF=".a"
2562 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2563 SLIBPREF="lib"
2564 SLIBSUF=".so"
2565 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2566 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2567 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2568 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2569 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2570 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2571 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2572
2573 asflags_filter=echo
2574 cflags_filter=echo
2575 ldflags_filter=echo
2576
2577 AS_C='-c'
2578 AS_O='-o $@'
2579 CC_C='-c'
2580 CC_E='-E -o $@'
2581 CC_O='-o $@'
2582 OBJCC_C='-c'
2583 OBJCC_E='-E -o $@'
2584 OBJCC_O='-o $@'
2585 LD_O='-o $@'
2586 LD_LIB='-l%'
2587 LD_PATH='-L'
2588 HOSTCC_C='-c'
2589 HOSTCC_E='-E -o $@'
2590 HOSTCC_O='-o $@'
2591 HOSTLD_O='-o $@'
2592
2593 host_extralibs='-lm'
2594 host_cflags_filter=echo
2595 host_ldflags_filter=echo
2596
2597 target_path='$(CURDIR)'
2598
2599 # since the object filename is not given with the -MM flag, the compiler
2600 # is only able to print the basename, and we must add the path ourselves
2601 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2602 DEPFLAGS='-MM'
2603
2604 # find source path
2605 if test -f configure; then
2606     source_path=.
2607 else
2608     source_path=$(cd $(dirname "$0"); pwd)
2609     echo "$source_path" | grep -q '[[:blank:]]' &&
2610         die "Out of tree builds are impossible with whitespace in source path."
2611     test -e "$source_path/config.h" &&
2612         die "Out of tree builds are impossible with config.h in source dir."
2613 fi
2614
2615 for v in "$@"; do
2616     r=${v#*=}
2617     l=${v%"$r"}
2618     r=$(sh_quote "$r")
2619     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2620 done
2621
2622 find_things(){
2623     thing=$1
2624     pattern=$2
2625     file=$source_path/$3
2626     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2627 }
2628
2629 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2630 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2631 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2632 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2633 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2634 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2635 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2636 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2637 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2638
2639 find_things_extern(){
2640     thing=$1
2641     pattern=$2
2642     file=$source_path/$3
2643     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2644 }
2645
2646 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2647 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2648
2649 ALL_COMPONENTS="
2650     $BSF_LIST
2651     $DECODER_LIST
2652     $DEMUXER_LIST
2653     $ENCODER_LIST
2654     $FILTER_LIST
2655     $HWACCEL_LIST
2656     $INDEV_LIST
2657     $MUXER_LIST
2658     $OUTDEV_LIST
2659     $PARSER_LIST
2660     $PROTOCOL_LIST
2661 "
2662
2663 for n in $COMPONENT_LIST; do
2664     v=$(toupper ${n%s})_LIST
2665     eval enable \$$v
2666     eval ${n}_if_any="\$$v"
2667 done
2668
2669 enable $ARCH_EXT_LIST
2670
2671 die_unknown(){
2672     echo "Unknown option \"$1\"."
2673     echo "See $0 --help for available options."
2674     exit 1
2675 }
2676
2677 print_3_columns() {
2678     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2679 }
2680
2681 show_list() {
2682     suffix=_$1
2683     shift
2684     echo $* | sed s/$suffix//g | print_3_columns
2685     exit 0
2686 }
2687
2688 rand_list(){
2689     IFS=', '
2690     set -- $*
2691     unset IFS
2692     for thing; do
2693         comp=${thing%:*}
2694         prob=${thing#$comp}
2695         prob=${prob#:}
2696         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2697         echo "prob ${prob:-0.5}"
2698         printf '%s\n' $comp
2699     done
2700 }
2701
2702 do_random(){
2703     action=$1
2704     shift
2705     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2706     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2707 }
2708
2709 for opt do
2710     optval="${opt#*=}"
2711     case "$opt" in
2712         --extra-ldflags=*)
2713             add_ldflags $optval
2714         ;;
2715         --extra-ldexeflags=*)
2716             add_ldexeflags $optval
2717         ;;
2718         --extra-libs=*)
2719             add_extralibs $optval
2720         ;;
2721         --disable-devices)
2722             disable $INDEV_LIST $OUTDEV_LIST
2723         ;;
2724         --enable-debug=*)
2725             debuglevel="$optval"
2726         ;;
2727         --disable-programs)
2728             disable $PROGRAM_LIST
2729         ;;
2730         --disable-everything)
2731             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2732         ;;
2733         --disable-all)
2734             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2735             disable $LIBRARY_LIST $PROGRAM_LIST doc
2736         ;;
2737         --enable-random|--disable-random)
2738             action=${opt%%-random}
2739             do_random ${action#--} $COMPONENT_LIST
2740         ;;
2741         --enable-random=*|--disable-random=*)
2742             action=${opt%%-random=*}
2743             do_random ${action#--} $optval
2744         ;;
2745         --enable-*=*|--disable-*=*)
2746             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2747             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2748             eval list=\$$(toupper $thing)_LIST
2749             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2750             $action $(filter "$name" $list)
2751         ;;
2752         --enable-avserver|--disable-avserver*)
2753             warn "avserver has been removed, the ${opt} option is only"\
2754                  "provided for compatibility and will be removed in the future"
2755         ;;
2756         --enable-?*|--disable-?*)
2757             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2758             if is_in $option $COMPONENT_LIST; then
2759                 test $action = disable && action=unset
2760                 eval $action \$$(toupper ${option%s})_LIST
2761             elif is_in $option $CMDLINE_SELECT; then
2762                 $action $option
2763             else
2764                 die_unknown $opt
2765             fi
2766         ;;
2767         --list-*)
2768             NAME="${opt#--list-}"
2769             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2770             NAME=${NAME%s}
2771             eval show_list $NAME \$$(toupper $NAME)_LIST
2772         ;;
2773         --help|-h) show_help
2774         ;;
2775         --quiet|-q) quiet=yes
2776         ;;
2777         *)
2778             optname="${opt%%=*}"
2779             optname="${optname#--}"
2780             optname=$(echo "$optname" | sed 's/-/_/g')
2781             if is_in $optname $CMDLINE_SET; then
2782                 eval $optname='$optval'
2783             elif is_in $optname $CMDLINE_APPEND; then
2784                 append $optname "$optval"
2785             else
2786                 die_unknown $opt
2787             fi
2788         ;;
2789     esac
2790 done
2791
2792 for e in $env; do
2793     eval "export $e"
2794 done
2795
2796 disabled logging && logfile=/dev/null
2797
2798 # Die early if licensing-related configure options are incompatible.
2799 die_license_disabled() {
2800     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2801 }
2802
2803 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2804 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2805 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2806
2807 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2808
2809 # Disable all the library-specific components if the library itself
2810 # is disabled, see AVCODEC_LIST and following _LIST variables.
2811
2812 disable_components(){
2813     disabled ${1} && disable $(
2814         eval components="\$$(toupper ${1})_COMPONENTS"
2815         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2816     )
2817 }
2818
2819 map 'disable_components $v' $LIBRARY_LIST
2820
2821 mkdir -p avbuild
2822 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2823 set >> $logfile
2824
2825 case "$toolchain" in
2826     *-asan)
2827         cc_default="${toolchain%-asan}"
2828         add_cflags  -fsanitize=address
2829         add_ldflags -fsanitize=address
2830     ;;
2831     *-msan)
2832         cc_default="${toolchain%-msan}"
2833         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2834         add_ldflags -fsanitize=memory
2835     ;;
2836     *-tsan)
2837         cc_default="${toolchain%-tsan}"
2838         add_cflags  -fsanitize=thread -fPIE
2839         add_ldflags -fsanitize=thread -pie
2840         case "$toolchain" in
2841             gcc-tsan)
2842                 add_cflags  -fPIC
2843                 add_ldflags -fPIC
2844                 ;;
2845         esac
2846     ;;
2847     *-usan)
2848         cc_default="${toolchain%-usan}"
2849         add_cflags  -fsanitize=undefined
2850         add_ldflags -fsanitize=undefined
2851         case "$toolchain" in
2852             clang-usan)
2853                 add_cflags -O1
2854                 ;;
2855         esac
2856     ;;
2857     valgrind-*)
2858         target_exec_default="valgrind"
2859         case "$toolchain" in
2860             valgrind-massif)
2861                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2862                 ;;
2863             valgrind-memcheck)
2864                 target_exec_args="--track-origins=yes --leak-check=full"
2865                 ;;
2866         esac
2867     ;;
2868     msvc)
2869         # Check whether the current MSVC version needs the C99 converter.
2870         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2871         # support enough of C99 to build libav. Default to the new
2872         # behaviour if the regexp was unable to match anything, since this
2873         # successfully parses the version number of existing supported
2874         # versions that require the converter (MSVC 2010 and 2012).
2875         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2876         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2877             cc_default="cl"
2878         else
2879             cc_default="c99wrap cl"
2880         fi
2881         ld_default="$source_path/compat/windows/mslink"
2882         nm_default="dumpbin -symbols"
2883         ar_default="lib"
2884         case "$arch" in
2885         arm*)
2886             as_default="armasm"
2887             ;;
2888         esac
2889         target_os_default="win32"
2890         # Use a relative path for TMPDIR. This makes sure all the
2891         # ffconf temp files are written with a relative path, avoiding
2892         # issues with msys/win32 path conversion for MSVC parameters
2893         # such as -Fo<file> or -out:<file>.
2894         TMPDIR=.
2895     ;;
2896     icl)
2897         cc_default="icl"
2898         ld_default="xilink"
2899         nm_default="dumpbin -symbols"
2900         ar_default="xilib"
2901         target_os_default="win32"
2902         TMPDIR=.
2903     ;;
2904     gcov)
2905         add_cflags  -fprofile-arcs -ftest-coverage
2906         add_ldflags -fprofile-arcs -ftest-coverage
2907     ;;
2908     llvm-cov)
2909         add_cflags -fprofile-arcs -ftest-coverage
2910         add_ldflags --coverage
2911     ;;
2912     hardened)
2913         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2914         add_cflags   -fno-strict-overflow -fstack-protector-all
2915         add_ldflags  -Wl,-z,relro -Wl,-z,now
2916     ;;
2917     ?*)
2918         die "Unknown toolchain $toolchain"
2919     ;;
2920 esac
2921
2922 test -n "$cross_prefix" && enable cross_compile
2923
2924 if enabled cross_compile; then
2925     test -n "$arch" && test -n "$target_os" ||
2926         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2927 fi
2928
2929 ar_default="${cross_prefix}${ar_default}"
2930 cc_default="${cross_prefix}${cc_default}"
2931 occ_default="${cross_prefix}${occ_default}"
2932 nm_default="${cross_prefix}${nm_default}"
2933 pkg_config_default="${cross_prefix}${pkg_config_default}"
2934 ranlib="${cross_prefix}${ranlib}"
2935 strip="${cross_prefix}${strip}"
2936
2937 sysinclude_default="${sysroot}/usr/include"
2938
2939 set_default arch cc pkg_config sysinclude target_exec target_os
2940 enabled cross_compile || host_cc_default=$cc
2941 set_default host_cc
2942
2943 if ! $pkg_config --version >/dev/null 2>&1; then
2944     warn "$pkg_config not found, library detection may fail."
2945     pkg_config=false
2946 fi
2947
2948 exesuf() {
2949     case $1 in
2950         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2951     esac
2952 }
2953
2954 EXESUF=$(exesuf $target_os)
2955 HOSTEXESUF=$(exesuf $host_os)
2956
2957 # set temporary file name
2958 : ${TMPDIR:=$TEMPDIR}
2959 : ${TMPDIR:=$TMP}
2960 : ${TMPDIR:=/tmp}
2961
2962 if ! check_cmd mktemp -u XXXXXX; then
2963     # simple replacement for missing mktemp
2964     # NOT SAFE FOR GENERAL USE
2965     mktemp(){
2966         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2967         echo "$tmpname"
2968         mkdir "$tmpname"
2969     }
2970 fi
2971
2972 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
2973     die "Unable to create temporary directory in $TMPDIR."
2974
2975 tmpfile(){
2976     tmp="${AVTMPDIR}/test"$2
2977     (set -C; exec > $tmp) 2> /dev/null ||
2978         die "Unable to create temporary file in $AVTMPDIR."
2979     eval $1=$tmp
2980 }
2981
2982 trap 'rm -rf -- "$AVTMPDIR"' EXIT
2983 trap 'exit 2' INT
2984
2985 tmpfile TMPASM .asm
2986 tmpfile TMPC   .c
2987 tmpfile TMPE   $EXESUF
2988 tmpfile TMPH   .h
2989 tmpfile TMPO   .o
2990 tmpfile TMPS   .S
2991 tmpfile TMPSH  .sh
2992 tmpfile TMPV   .ver
2993
2994 unset -f mktemp
2995
2996 chmod +x $TMPE
2997
2998 # make sure we can execute files in $TMPDIR
2999 cat > $TMPSH 2>> $logfile <<EOF
3000 #! /bin/sh
3001 EOF
3002 chmod +x $TMPSH >> $logfile 2>&1
3003 if ! $TMPSH >> $logfile 2>&1; then
3004     cat <<EOF
3005 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3006 variable to another directory and make sure that it is not mounted noexec.
3007 EOF
3008     die "Sanity test failed."
3009 fi
3010
3011 armasm_flags(){
3012     for flag; do
3013         case $flag in
3014             # Filter out MSVC cl.exe options from cflags that shouldn't
3015             # be passed to gas-preprocessor
3016             -M[TD]*)                                            ;;
3017             *)                  echo $flag                      ;;
3018         esac
3019    done
3020 }
3021
3022 ccc_flags(){
3023     for flag; do
3024         case $flag in
3025             -std=c99)           echo -c99                       ;;
3026             -mcpu=*)            echo -arch ${flag#*=}           ;;
3027             -mieee)             echo -ieee                      ;;
3028             -O*|-fast)          echo $flag                      ;;
3029             -fno-math-errno)    echo -assume nomath_errno       ;;
3030             -g)                 echo -g3                        ;;
3031             -Wall)              echo -msg_enable level2         ;;
3032             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3033             -Wl,*)              echo $flag                      ;;
3034             -f*|-W*)                                            ;;
3035             *)                  echo $flag                      ;;
3036         esac
3037    done
3038 }
3039
3040 cparser_flags(){
3041     for flag; do
3042         case $flag in
3043             -Wno-switch)             echo -Wno-switch-enum ;;
3044             -Wno-format-zero-length) ;;
3045             -Wdisabled-optimization) ;;
3046             -Wno-pointer-sign)       echo -Wno-other ;;
3047             *)                       echo $flag ;;
3048         esac
3049     done
3050 }
3051
3052 msvc_common_flags(){
3053     for flag; do
3054         case $flag in
3055             # In addition to specifying certain flags under the compiler
3056             # specific filters, they must be specified here as well or else the
3057             # generic catch all at the bottom will print the original flag.
3058             -Wall)                ;;
3059             -Wextra)              ;;
3060             -std=c99)             ;;
3061             # Common flags
3062             -fomit-frame-pointer) ;;
3063             -g)                   echo -Z7 ;;
3064             -fno-math-errno)      ;;
3065             -fno-common)          ;;
3066             -fno-signed-zeros)    ;;
3067             -fPIC)                ;;
3068             -mthumb)              ;;
3069             -march=*)             ;;
3070             -lz)                  echo zlib.lib ;;
3071             -lx264)               echo libx264.lib ;;
3072             -l*)                  echo ${flag#-l}.lib ;;
3073             -L*)                  echo -libpath:${flag#-L} ;;
3074             *)                    echo $flag ;;
3075         esac
3076     done
3077 }
3078
3079 msvc_flags(){
3080     msvc_common_flags "$@"
3081     for flag; do
3082         case $flag in
3083             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3084                                        -wd4554 ;;
3085             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3086                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3087                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3088                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3089         esac
3090     done
3091 }
3092
3093 icl_flags(){
3094     msvc_common_flags "$@"
3095     for flag; do
3096         case $flag in
3097             # Despite what Intel's documentation says -Wall, which is supported
3098             # on Windows, does enable remarks so disable them here.
3099             -Wall)                echo $flag -Qdiag-disable:remark ;;
3100             -std=c99)             echo -Qstd=c99 ;;
3101         esac
3102     done
3103 }
3104
3105 pgi_flags(){
3106     for flag; do
3107         case $flag in
3108             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3109             -fomit-frame-pointer) echo -Mnoframe ;;
3110             -g)                   echo -gopt ;;
3111             *)                    echo $flag ;;
3112         esac
3113     done
3114 }
3115
3116 suncc_flags(){
3117     for flag; do
3118         case $flag in
3119             -march=*|-mcpu=*)
3120                 case "${flag#*=}" in
3121                     native)                   echo -xtarget=native       ;;
3122                     v9|niagara)               echo -xarch=sparc          ;;
3123                     ultrasparc)               echo -xarch=sparcvis       ;;
3124                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3125                     i586|pentium)             echo -xchip=pentium        ;;
3126                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3127                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3128                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3129                     pentium4*)          echo -xtarget=pentium4           ;;
3130                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3131                     *-sse3)             echo -xarch=sse3                 ;;
3132                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3133                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3134                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3135                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3136                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3137                     k8|opteron|athlon64|athlon-fx)
3138                                                echo -xarch=sse2a         ;;
3139                     athlon*)                   echo -xarch=pentium_proa  ;;
3140                 esac
3141                 ;;
3142             -std=c99)             echo -xc99              ;;
3143             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3144             -fPIC)                echo -KPIC -xcode=pic32 ;;
3145             -W*,*)                echo $flag              ;;
3146             -f*-*|-W*|-mimpure-text)                      ;;
3147             -shared)              echo -G                 ;;
3148             *)                    echo $flag              ;;
3149         esac
3150     done
3151 }
3152
3153 tms470_flags(){
3154     for flag; do
3155         case $flag in
3156             -march=*|-mcpu=*)
3157                 case "${flag#*=}" in
3158                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3159                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3160                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3161                     armv6*|arm11*)          echo -mv=6   ;;
3162                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3163                                             echo -mv=5e  ;;
3164                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3165                 esac
3166                 ;;
3167             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3168             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3169             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3170             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3171             -msoft-float)   echo --float_support=vfplib       ;;
3172             -O[0-3]|-mf=*)  echo $flag                        ;;
3173             -g)             echo -g -mn                       ;;
3174             -pds=*)         echo $flag                        ;;
3175             -D*|-I*)        echo $flag                        ;;
3176             --gcc|--abi=*)  echo $flag                        ;;
3177             -me)            echo $flag                        ;;
3178         esac
3179     done
3180 }
3181
3182 probe_cc(){
3183     pfx=$1
3184     _cc=$2
3185
3186     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3187     unset _ld_o _ldflags _ld_lib _ld_path
3188     unset _depflags _DEPCMD _DEPFLAGS
3189     _flags_filter=echo
3190
3191     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3192         _type=llvm_gcc
3193         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3194         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3195         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3196         _cflags_speed='-O3'
3197         _cflags_size='-Os'
3198     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3199         _type=gcc
3200         gcc_version=$($_cc --version | head -n1)
3201         gcc_basever=$($_cc -dumpversion)
3202         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3203         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3204         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3205         if ! $_cc -dumpversion | grep -q '^2\.'; then
3206             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3207         fi
3208         _cflags_speed='-O3'
3209         _cflags_size='-Os'
3210     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3211         _type=icc
3212         _ident=$($_cc --version | head -n1)
3213         _depflags='-MMD'
3214         _cflags_speed='-O3'
3215         _cflags_size='-Os'
3216         _cflags_noopt='-O1'
3217     elif $_cc -v 2>&1 | grep -q xlc; then
3218         _type=xlc
3219         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3220         _cflags_speed='-O5'
3221         _cflags_size='-O5 -qcompact'
3222     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3223         _type=ccc
3224         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3225         _DEPFLAGS='-M'
3226         _cflags_speed='-fast'
3227         _cflags_size='-O1'
3228         _flags_filter=ccc_flags
3229     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3230         test -d "$sysroot" || die "No valid sysroot specified."
3231         _type=armcc
3232         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3233         armcc_conf="$PWD/armcc.conf"
3234         $_cc --arm_linux_configure                 \
3235              --arm_linux_config_file="$armcc_conf" \
3236              --configure_sysroot="$sysroot"        \
3237              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3238              die "Error creating armcc configuration file."
3239         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3240         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3241         as_default="${cross_prefix}gcc"
3242         _depflags='-MMD'
3243         _cflags_speed='-O3'
3244         _cflags_size='-Os'
3245     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3246         _type=tms470
3247         _ident=$($_cc -version | head -n1 | tr -s ' ')
3248         _flags='--gcc --abi=eabi -me'
3249         _cc_e='-ppl -fe=$@'
3250         _cc_o='-fe=$@'
3251         _depflags='-ppa -ppd=$(@:.o=.d)'
3252         _cflags_speed='-O3 -mf=5'
3253         _cflags_size='-O3 -mf=2'
3254         _flags_filter=tms470_flags
3255     elif $_cc -v 2>&1 | grep -q clang; then
3256         _type=clang
3257         _ident=$($_cc --version 2>/dev/null | head -n1)
3258         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3259         _cflags_speed='-O3'
3260         _cflags_size='-Os'
3261     elif $_cc -V 2>&1 | grep -q Sun; then
3262         _type=suncc
3263         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3264         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3265         _DEPFLAGS='-xM1 -xc99'
3266         _ldflags='-std=c99'
3267         _cflags_speed='-O5'
3268         _cflags_size='-O5 -xspace'
3269         _flags_filter=suncc_flags
3270     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3271         _type=pathscale
3272         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3273         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3274         _cflags_speed='-O2'
3275         _cflags_size='-Os'
3276         _flags_filter='filter_out -Wdisabled-optimization'
3277     elif $_cc -v 2>&1 | grep -q Open64; then
3278         _type=open64
3279         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3280         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3281         _cflags_speed='-O2'
3282         _cflags_size='-Os'
3283         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3284     elif $_cc -V 2>&1 | grep -q Portland; then
3285         _type=pgi
3286         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3287         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3288         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3289         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3290         _cflags_noopt="-O1"
3291         _flags_filter=pgi_flags
3292     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3293         _type=armasm
3294         _ident=$($_cc | head -n1)
3295         # 4509: "This form of conditional instruction is deprecated"
3296         _flags="-nologo -ignore 4509"
3297         _flags_filter=armasm_flags
3298     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3299         _type=msvc
3300         _ident=$($_cc 2>&1 | head -n1)
3301         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3302         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3303         _cflags_speed="-O2"
3304         _cflags_size="-O1"
3305         _cflags_noopt="-O1"
3306         if $_cc -nologo- 2>&1 | grep -q Linker; then
3307             _ld_o='-out:$@'
3308         else
3309             _ld_o='-Fe$@'
3310         fi
3311         _cc_o='-Fo$@'
3312         _cc_e='-P -Fi$@'
3313         _flags_filter=msvc_flags
3314         _ld_lib='lib%.a'
3315         _ld_path='-libpath:'
3316         _flags='-nologo'
3317     elif $_cc 2>&1 | grep -q Intel; then
3318         _type=icl
3319         _ident=$($_cc 2>&1 | head -n1)
3320         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3321         # Not only is O3 broken on 13.x+ but it is slower on all previous
3322         # versions (tested) as well.
3323         _cflags_speed="-O2"
3324         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3325         if $_cc 2>&1 | grep -q Linker; then
3326             _ld_o='-out:$@'
3327         else
3328             _ld_o='-Fe$@'
3329         fi
3330         _cc_o='-Fo$@'
3331         _cc_e='-P'
3332         _flags_filter=icl_flags
3333         _ld_lib='lib%.a'
3334         _ld_path='-libpath:'
3335         # -Qdiag-error to make icl error when seeing certain unknown arguments
3336         _flags='-nologo -Qdiag-error:4044,10157'
3337         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3338         # with MSVC which enables it by default.
3339         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3340     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3341         # lld can emulate multiple different linkers; in ms link.exe mode,
3342         # the -? parameter gives the help output which contains an identifyable
3343         # string, while it gives an error in other modes.
3344         _type=lld-link
3345         # The link.exe mode doesn't have a switch for getting the version,
3346         # but we can force it back to gnu mode and get the version from there.
3347         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3348         _ld_o='-out:$@'
3349         _flags_filter=msvc_flags
3350         _ld_lib='lib%.a'
3351         _ld_path='-libpath:'
3352     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3353         _type=cparser
3354         _ident=$($_cc --version | head -n1)
3355         _depflags='-MMD'
3356         _cflags_speed='-O4'
3357         _cflags_size='-O2'
3358         _flags_filter=cparser_flags
3359     fi
3360
3361     eval ${pfx}_type=\$_type
3362     eval ${pfx}_ident=\$_ident
3363 }
3364
3365 set_ccvars(){
3366     eval ${1}_C=\${_cc_c-\${${1}_C}}
3367     eval ${1}_E=\${_cc_e-\${${1}_E}}
3368     eval ${1}_O=\${_cc_o-\${${1}_O}}
3369
3370     if [ -n "$_depflags" ]; then
3371         eval ${1}_DEPFLAGS=\$_depflags
3372     else
3373         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3374         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3375         eval DEP${1}FLAGS=\$_flags
3376     fi
3377 }
3378
3379 probe_cc cc "$cc"
3380 cflags_filter=$_flags_filter
3381 cflags_speed=$_cflags_speed
3382 cflags_size=$_cflags_size
3383 cflags_noopt=$_cflags_noopt
3384 add_cflags $_flags $_cflags
3385 cc_ldflags=$_ldflags
3386 set_ccvars CC
3387
3388 probe_cc hostcc "$host_cc"
3389 host_cflags_filter=$_flags_filter
3390 host_cflags_speed=$_cflags_speed
3391 add_host_cflags  $_flags $_cflags
3392 set_ccvars HOSTCC
3393
3394 test -n "$cc_type" && enable $cc_type ||
3395     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3396
3397 : ${as_default:=$cc}
3398 : ${objcc_default:=$cc}
3399 : ${dep_cc_default:=$cc}
3400 : ${ld_default:=$cc}
3401 : ${host_ld_default:=$host_cc}
3402 set_default ar as objcc dep_cc ld host_ld
3403
3404 probe_cc as "$as"
3405 asflags_filter=$_flags_filter
3406 add_asflags $_flags $_cflags
3407 set_ccvars AS
3408
3409 probe_cc objcc "$objcc"
3410 objcflags_filter=$_flags_filter
3411 add_objcflags $_flags $_cflags
3412 set_ccvars OBJC
3413
3414 probe_cc ld "$ld"
3415 ldflags_filter=$_flags_filter
3416 add_ldflags $_flags $_ldflags
3417 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3418 LD_O=${_ld_o-$LD_O}
3419 LD_LIB=${_ld_lib-$LD_LIB}
3420 LD_PATH=${_ld_path-$LD_PATH}
3421
3422 probe_cc hostld "$host_ld"
3423 host_ldflags_filter=$_flags_filter
3424 add_host_ldflags $_flags $_ldflags
3425 HOSTLD_O=${_ld_o-$HOSTLD_O}
3426
3427 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3428     probe_cc depcc "$dep_cc"
3429     CCDEP=${_DEPCMD:-$DEPCMD}
3430     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3431     DEPCCFLAGS=$_flags
3432 fi
3433
3434 if $ar 2>&1 | grep -q Microsoft; then
3435     arflags="-nologo"
3436     ar_o='-out:$@'
3437 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3438     arflags="rq"
3439     ar_o='$@'
3440 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3441     arflags='-Xany -r -c'
3442     ar_o='$@'
3443 else
3444     arflags="rc"
3445     ar_o='$@'
3446 fi
3447
3448 add_cflags $extra_cflags
3449 add_objcflags $extra_objcflags
3450 add_asflags $extra_cflags
3451
3452 if test -n "$sysroot"; then
3453     case "$cc_type" in
3454         gcc|llvm_gcc|clang)
3455             add_cppflags --sysroot="$sysroot"
3456             add_ldflags --sysroot="$sysroot"
3457         ;;
3458         tms470)
3459             add_cppflags -I"$sysinclude"
3460             add_ldflags  --sysroot="$sysroot"
3461         ;;
3462     esac
3463 fi
3464
3465 if test "$cpu" = host; then
3466     enabled cross_compile &&
3467         die "--cpu=host makes no sense when cross-compiling."
3468
3469     case "$cc_type" in
3470         gcc|llvm_gcc)
3471             check_native(){
3472                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3473                 sed -n "/cc1.*$1=/{
3474                             s/.*$1=\\([^ ]*\\).*/\\1/
3475                             p
3476                             q
3477                         }" $TMPE
3478             }
3479             cpu=$(check_native -march || check_native -mcpu)
3480         ;;
3481     esac
3482
3483     test "${cpu:-host}" = host &&
3484         die "--cpu=host not supported with compiler $cc"
3485 fi
3486
3487 # Deal with common $arch aliases
3488 case "$arch" in
3489     aarch64|arm64)
3490         arch="aarch64"
3491     ;;
3492     arm*)
3493         arch="arm"
3494     ;;
3495     mips*|IP*)
3496         case "$arch" in
3497         *el)
3498             add_cppflags -EL
3499             add_ldflags -EL
3500         ;;
3501         *eb)
3502             add_cppflags -EB
3503             add_ldflags -EB
3504         ;;
3505         esac
3506         arch="mips"
3507     ;;
3508     parisc*|hppa*)
3509         arch="parisc"
3510     ;;
3511     "Power Macintosh"|ppc*|powerpc*)
3512         arch="ppc"
3513     ;;
3514     s390|s390x)
3515         arch="s390"
3516     ;;
3517     sh4|sh)
3518         arch="sh4"
3519     ;;
3520     sun4u|sparc*)
3521         arch="sparc"
3522     ;;
3523     tilegx|tile-gx)
3524         arch="tilegx"
3525     ;;
3526     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3527         arch="x86"
3528     ;;
3529 esac
3530
3531 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3532 enable $arch
3533
3534 # Add processor-specific flags
3535 if enabled aarch64; then
3536
3537     case $cpu in
3538         armv*)
3539             cpuflags="-march=$cpu"
3540         ;;
3541         *)
3542             cpuflags="-mcpu=$cpu"
3543         ;;
3544     esac
3545
3546 elif enabled alpha; then
3547
3548     cpuflags="-mcpu=$cpu"
3549
3550 elif enabled arm; then
3551
3552     check_arm_arch() {
3553         check_cpp_condition stddef.h \
3554             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3555             $cpuflags
3556     }
3557
3558     probe_arm_arch() {
3559         if   check_arm_arch 4;        then echo armv4
3560         elif check_arm_arch 4T;       then echo armv4t
3561         elif check_arm_arch 5;        then echo armv5
3562         elif check_arm_arch 5E;       then echo armv5e
3563         elif check_arm_arch 5T;       then echo armv5t
3564         elif check_arm_arch 5TE;      then echo armv5te
3565         elif check_arm_arch 5TEJ;     then echo armv5te
3566         elif check_arm_arch 6;        then echo armv6
3567         elif check_arm_arch 6J;       then echo armv6j
3568         elif check_arm_arch 6K;       then echo armv6k
3569         elif check_arm_arch 6Z;       then echo armv6z
3570         elif check_arm_arch 6ZK;      then echo armv6zk
3571         elif check_arm_arch 6T2;      then echo armv6t2
3572         elif check_arm_arch 7;        then echo armv7
3573         elif check_arm_arch 7A  7_A;  then echo armv7-a
3574         elif check_arm_arch 7S;       then echo armv7-a
3575         elif check_arm_arch 7R  7_R;  then echo armv7-r
3576         elif check_arm_arch 7M  7_M;  then echo armv7-m
3577         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3578         elif check_arm_arch 8A  8_A;  then echo armv8-a
3579         fi
3580     }
3581
3582     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3583
3584     case $cpu in
3585         armv*)
3586             cpuflags="-march=$cpu"
3587             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3588         ;;
3589         *)
3590             cpuflags="-mcpu=$cpu"
3591             case $cpu in
3592                 cortex-a*)                               subarch=armv7a  ;;
3593                 cortex-r*)                               subarch=armv7r  ;;
3594                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3595                 arm11*)                                  subarch=armv6   ;;
3596                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3597                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3598                 *)                             subarch=$(probe_arm_arch) ;;
3599             esac
3600         ;;
3601     esac
3602
3603     case "$subarch" in
3604         armv5t*)    enable fast_clz                ;;
3605         armv[6-8]*) enable fast_clz fast_unaligned ;;
3606     esac
3607
3608 elif enabled avr32; then
3609
3610     case $cpu in
3611         ap7[02]0[0-2])
3612             subarch="avr32_ap"
3613             cpuflags="-mpart=$cpu"
3614         ;;
3615         ap)
3616             subarch="avr32_ap"
3617             cpuflags="-march=$cpu"
3618         ;;
3619         uc3[ab]*)
3620             subarch="avr32_uc"
3621             cpuflags="-mcpu=$cpu"
3622         ;;
3623         uc)
3624             subarch="avr32_uc"
3625             cpuflags="-march=$cpu"
3626         ;;
3627     esac
3628
3629 elif enabled bfin; then
3630
3631     cpuflags="-mcpu=$cpu"
3632
3633 elif enabled mips; then
3634
3635     cpuflags="-march=$cpu"
3636
3637 elif enabled ppc; then
3638
3639     disable ldbrx
3640
3641     case $(tolower $cpu) in
3642         601|ppc601|powerpc601)
3643             cpuflags="-mcpu=601"
3644             disable altivec
3645         ;;
3646         603*|ppc603*|powerpc603*)
3647             cpuflags="-mcpu=603"
3648             disable altivec
3649         ;;
3650         604*|ppc604*|powerpc604*)
3651             cpuflags="-mcpu=604"
3652             disable altivec
3653         ;;
3654         g3|75*|ppc75*|powerpc75*)
3655             cpuflags="-mcpu=750"
3656             disable altivec
3657         ;;
3658         g4|745*|ppc745*|powerpc745*)
3659             cpuflags="-mcpu=7450"
3660             disable vsx
3661         ;;
3662         74*|ppc74*|powerpc74*)
3663             cpuflags="-mcpu=7400"
3664             disable vsx
3665         ;;
3666         g5|970|ppc970|powerpc970)
3667             cpuflags="-mcpu=970"
3668             disable vsx
3669         ;;
3670         power[3-6]*)
3671             cpuflags="-mcpu=$cpu"
3672             disable vsx
3673         ;;
3674         power[7-8]*)
3675             cpuflags="-mcpu=$cpu"
3676             enable ldbrx
3677         ;;
3678         cell)
3679             cpuflags="-mcpu=cell"
3680             enable ldbrx
3681             disable vsx
3682         ;;
3683         e500mc)
3684             cpuflags="-mcpu=e500mc"
3685             disable altivec
3686         ;;
3687         e500v2)
3688             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3689             disable altivec
3690             disable dcbzl
3691         ;;
3692         e500)
3693             cpuflags="-mcpu=8540 -mhard-float"
3694             disable altivec
3695             disable dcbzl
3696         ;;
3697     esac
3698
3699 elif enabled sparc; then
3700
3701     case $cpu in
3702         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3703             cpuflags="-mcpu=$cpu"
3704         ;;
3705         ultrasparc*|niagara[234])
3706             cpuflags="-mcpu=$cpu"
3707         ;;
3708     esac
3709
3710 elif enabled x86; then
3711
3712     case $cpu in
3713         i[345]86|pentium)
3714             cpuflags="-march=$cpu"
3715             disable i686
3716             disable mmx
3717         ;;
3718         # targets that do NOT support nopl and conditional mov (cmov)
3719         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3720             cpuflags="-march=$cpu"
3721             disable i686
3722         ;;
3723         # targets that do support nopl and conditional mov (cmov)
3724         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3725             cpuflags="-march=$cpu"
3726             enable i686
3727             enable fast_cmov
3728         ;;
3729         # targets that do support conditional mov but on which it's slow
3730         pentium4|pentium4m|prescott|nocona)
3731             cpuflags="-march=$cpu"
3732             enable i686
3733             disable fast_cmov
3734         ;;
3735     esac
3736
3737 fi
3738
3739 if [ "$cpu" != generic ]; then
3740     add_cflags  $cpuflags
3741     add_asflags $cpuflags
3742     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3743 fi
3744
3745 # compiler sanity check
3746 check_exec <<EOF
3747 int main(void){ return 0; }
3748 EOF
3749 if test "$?" != 0; then
3750     echo "$cc is unable to create an executable file."
3751     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3752         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3753         echo "Only do this if you know what cross compiling means."
3754     fi
3755     die "C compiler test failed."
3756 fi
3757
3758 add_cppflags -D_ISOC99_SOURCE
3759
3760 # some compilers silently accept -std=c11, so we also need to check that the
3761 # version macro is defined properly
3762 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3763     add_cflags -std=c11
3764 else
3765     check_cflags -std=c99
3766 fi
3767
3768 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3769 #include <stdlib.h>
3770 EOF
3771 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3772 #include <stdlib.h>
3773 EOF
3774
3775 add_host_cppflags -D_ISOC99_SOURCE
3776 check_host_cflags -std=c99
3777 check_host_cflags -Wall
3778 check_host_cflags $host_cflags_speed
3779
3780 check_64bit(){
3781     arch32=$1
3782     arch64=$2
3783     expr=$3
3784     check_code cc "" "int test[2*($expr) - 1]" &&
3785         subarch=$arch64 || subarch=$arch32
3786 }
3787
3788 case "$arch" in
3789     aarch64|alpha|ia64)
3790         spic=$shared
3791     ;;
3792     mips)
3793         check_64bit mips mips64 '_MIPS_SIM > 1'
3794         spic=$shared
3795     ;;
3796     parisc)
3797         check_64bit parisc parisc64 'sizeof(void *) > 4'
3798         spic=$shared
3799     ;;
3800     ppc)
3801         check_64bit ppc ppc64 'sizeof(void *) > 4'
3802         spic=$shared
3803     ;;
3804     s390)
3805         check_64bit s390 s390x 'sizeof(void *) > 4'
3806         spic=$shared
3807     ;;
3808     sparc)
3809         check_64bit sparc sparc64 'sizeof(void *) > 4'
3810         spic=$shared
3811     ;;
3812     x86)
3813         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3814         if test "$subarch" = "x86_64"; then
3815             spic=$shared
3816         fi
3817     ;;
3818 esac
3819
3820 enable $subarch
3821 enabled spic && enable_weak pic
3822
3823 # OS specific
3824 case $target_os in
3825     aix)
3826         SHFLAGS=-shared
3827         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3828         enabled shared && add_ldflags -Wl,-brtl
3829         ;;
3830     android)
3831         disable symver
3832         enable section_data_rel_ro
3833         SLIB_INSTALL_NAME='$(SLIBNAME)'
3834         SLIB_INSTALL_LINKS=
3835         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3836         ;;
3837     haiku)
3838         prefix_default="/boot/common"
3839         network_extralibs="-lnetwork"
3840         host_extralibs=
3841         ;;
3842     sunos)
3843         SHFLAGS='-shared -Wl,-h,$$(@F)'
3844         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3845         network_extralibs="-lsocket -lnsl"
3846         # When using suncc to build, the Solaris linker will mark
3847         # an executable with each instruction set encountered by
3848         # the Solaris assembler.  As our libraries contain their own
3849         # guards for processor-specific code, instead suppress
3850         # generation of the HWCAPS ELF section on Solaris x86 only.
3851         enabled_all suncc x86 &&
3852             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3853             add_ldflags -Wl,-M,mapfile
3854         nm_default='nm -P -g'
3855         version_script='-M'
3856         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3857         ;;
3858     netbsd)
3859         disable symver
3860         oss_indev_extralibs="-lossaudio"
3861         oss_outdev_extralibs="-lossaudio"
3862         ;;
3863     openbsd|bitrig)
3864         disable symver
3865         SHFLAGS='-shared'
3866         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3867         SLIB_INSTALL_LINKS=
3868         oss_indev_extralibs="-lossaudio"
3869         oss_outdev_extralibs="-lossaudio"
3870         ;;
3871     dragonfly)
3872         disable symver
3873         ;;
3874     freebsd)
3875         ;;
3876     bsd/os)
3877         add_extralibs -lpoll -lgnugetopt
3878         ;;
3879     darwin)
3880         enabled ppc && add_asflags -force_cpusubtype_ALL
3881         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3882         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3883         add_ldflags -Wl,-dynamic,-search_paths_first
3884         SLIBSUF=".dylib"
3885         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3886         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3887         objformat="macho"
3888         enabled x86_64 && objformat="macho64"
3889         enabled_any pic shared ||
3890             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3891         check_header dispatch/dispatch.h &&
3892             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3893         ;;
3894     msys*)
3895         die "Native MSYS builds are discouraged, please use the MINGW environment."
3896         ;;
3897     mingw32*|mingw64*)
3898         if test $target_os = "mingw32ce"; then
3899             disable network
3900         else
3901             target_os=mingw32
3902         fi
3903         LIBTARGET=i386
3904         if enabled x86_64; then
3905             LIBTARGET="i386:x86-64"
3906         elif enabled arm; then
3907             LIBTARGET=arm-wince
3908         fi
3909         check_ldflags -Wl,--nxcompat
3910         check_ldflags -Wl,--dynamicbase
3911         shlibdir_default="$bindir_default"
3912         SLIBPREF=""
3913         SLIBSUF=".dll"
3914         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3915         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3916         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3917         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3918         SLIB_INSTALL_LINKS=
3919         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3920         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3921         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3922         objformat="win32"
3923         dlltool="${cross_prefix}dlltool"
3924         ranlib=:
3925         enable dos_paths
3926         ;;
3927     win32|win64)
3928         disable symver
3929         if enabled shared; then
3930             # Link to the import library instead of the normal static library
3931             # for shared libs.
3932             LD_LIB='%.lib'
3933             # Cannot build both shared and static libs with MSVC or icl.
3934             disable static
3935         fi
3936         shlibdir_default="$bindir_default"
3937         SLIBPREF=""
3938         SLIBSUF=".dll"
3939         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3940         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3941         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3942         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3943         SLIB_INSTALL_LINKS=
3944         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3945         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3946         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3947         objformat="win32"
3948         ranlib=:
3949         enable dos_paths
3950         ;;
3951     cygwin*)
3952         target_os=cygwin
3953         shlibdir_default="$bindir_default"
3954         SLIBPREF="cyg"
3955         SLIBSUF=".dll"
3956         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3957         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3958         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3959         SLIB_INSTALL_LINKS=
3960         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3961         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3962         objformat="win32"
3963         enable dos_paths
3964         ;;
3965     *-dos|freedos|opendos)
3966         network_extralibs="-lsocket"
3967         objformat="coff"
3968         enable dos_paths
3969         add_cppflags -U__STRICT_ANSI__
3970         ;;
3971     linux)
3972         enable dv1394
3973         enable section_data_rel_ro
3974         ;;
3975     irix*)
3976         target_os=irix
3977         ranlib="echo ignoring ranlib"
3978         ;;
3979     os/2*)
3980         ln_s="cp -f"
3981         objformat="aout"
3982         add_cppflags -D_GNU_SOURCE
3983         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
3984         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3985         LIBSUF="_s.a"
3986         SLIBPREF=""
3987         SLIBSUF=".dll"
3988         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3989         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3990         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3991             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3992             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3993             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3994             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3995         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3996             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3997         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3998         enable dos_paths
3999         ;;
4000     gnu/kfreebsd)
4001         add_cppflags -D_BSD_SOURCE
4002         ;;
4003     gnu)
4004         ;;
4005     qnx)
4006         add_cppflags -D_QNX_SOURCE
4007         network_extralibs="-lsocket"
4008         ;;
4009     symbian)
4010         SLIBSUF=".dll"
4011         enable dos_paths
4012         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4013         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4014         add_ldflags -Wl,--target1-abs,--no-undefined \
4015                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4016                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4017         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4018                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4019                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4020         ;;
4021     osf1)
4022         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4023         ;;
4024     minix)
4025         ;;
4026     none)
4027         ;;
4028     *)
4029         die "Unknown OS '$target_os'."
4030         ;;
4031 esac
4032
4033 # determine libc flavour
4034
4035 probe_libc(){
4036     pfx=$1
4037     pfx_no_=${pfx%_}
4038     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4039     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4040         eval ${pfx}libc_type=uclibc
4041         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4042     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4043         eval ${pfx}libc_type=glibc
4044         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4045     # MinGW headers can be installed on Cygwin, so check for newlib first.
4046     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4047         eval ${pfx}libc_type=newlib
4048         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4049     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4050     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4051         eval ${pfx}libc_type=mingw64
4052         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4053         eval test \$${pfx_no_}cc_type = "gcc" &&
4054             add_${pfx}cppflags -D__printf__=__gnu_printf__
4055     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4056          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4057         eval ${pfx}libc_type=mingw32
4058         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4059             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4060             die "ERROR: MinGW32 runtime version must be >= 3.15."
4061         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4062         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4063             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4064         eval test \$${pfx_no_}cc_type = "gcc" &&
4065             add_${pfx}cppflags -D__printf__=__gnu_printf__
4066     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4067         eval ${pfx}libc_type=msvcrt
4068         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4069             if [ "$pfx" = host_ ]; then
4070                 add_host_cppflags -Dsnprintf=_snprintf
4071             else
4072                 add_compat strtod.o strtod=avpriv_strtod
4073                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4074                                              _snprintf=avpriv_snprintf  \
4075                                              vsnprintf=avpriv_vsnprintf
4076             fi
4077         fi
4078         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4079         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4080         # 0x601 by default unless something else is set by the user.
4081         # This can easily lead to us detecting functions only present
4082         # in such new versions and producing binaries requiring windows 7.0.
4083         # Therefore explicitly set the default to XP unless the user has
4084         # set something else on the command line.
4085         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4086         # family. For these cases, configure is free to use any functions
4087         # found in the SDK headers by default. (Alternatively, we could force
4088         # _WIN32_WINNT to 0x0602 in that case.)
4089         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4090             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4091 #ifdef WINAPI_FAMILY
4092 #include <winapifamily.h>
4093 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4094 #error not desktop
4095 #endif
4096 #endif
4097 EOF
4098         if [ "$pfx" = "" ]; then
4099             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4100         fi
4101     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4102         eval ${pfx}libc_type=klibc
4103     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4104         eval ${pfx}libc_type=bionic
4105     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4106         eval ${pfx}libc_type=solaris
4107         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4108     else
4109         eval ${pfx}libc_type=default
4110         add_${pfx}cppflags -D_DEFAULT_SOURCE
4111     fi
4112 }
4113
4114 probe_libc
4115 test -n "$libc_type" && enable libc_$libc_type
4116 probe_libc host_
4117 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4118
4119 # hacks for compiler/libc/os combinations
4120
4121 case $libc_type in
4122     bionic)
4123         add_compat strtod.o strtod=avpriv_strtod
4124         ;;
4125     glibc)
4126         if enabled tms470; then
4127             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4128             add_cppflags -D__USER_LABEL_PREFIX__=
4129             add_cppflags -D__builtin_memset=memset
4130             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4131             add_cflags   -pds=48    # incompatible redefinition of macro
4132         elif enabled ccc; then
4133             add_ldflags -Wl,-z,now  # calls to libots crash without this
4134         fi
4135         ;;
4136 esac
4137
4138 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4139     add_cppflags '-I\$(SRC_PATH)/compat/float'
4140
4141 esc(){
4142     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4143 }
4144
4145 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4146
4147 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4148
4149 set_default $PATHS_LIST
4150 set_default nm
4151
4152 # we need to build at least one lib type
4153 if ! enabled_any static shared; then
4154     cat <<EOF
4155 At least one library type must be built.
4156 Specify --enable-static to build the static libraries or --enable-shared to
4157 build the shared libraries as well. To only build the shared libraries specify
4158 --disable-static in addition to --enable-shared.
4159 EOF
4160     exit 1
4161 fi
4162
4163 disabled optimizations || check_cflags -fomit-frame-pointer
4164
4165 enable_weak_pic() {
4166     disabled pic && return
4167     enable pic
4168     add_cppflags -DPIC
4169     case "$target_os" in
4170     mingw*|cygwin*)
4171         ;;
4172     *)
4173         add_cflags -fPIC
4174         ;;
4175     esac
4176     add_asflags  -fPIC
4177 }
4178
4179 enabled pic && enable_weak_pic
4180
4181 check_cc <<EOF || die "Symbol mangling check failed."
4182 int ff_extern;
4183 EOF
4184 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4185 extern_prefix=${sym%%ff_extern*}
4186
4187 check_inline_asm inline_asm '"" ::'
4188
4189 _restrict=
4190 for restrict_keyword in restrict __restrict__ __restrict; do
4191     check_cc <<EOF && _restrict=$restrict_keyword && break
4192 void foo(char * $restrict_keyword p);
4193 EOF
4194 done
4195
4196 check_cc <<EOF && enable pragma_deprecated
4197 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4198 EOF
4199
4200 check_cc <<EOF && enable attribute_packed
4201 struct { int x; } __attribute__((packed)) x;
4202 EOF
4203
4204 check_cc <<EOF && enable attribute_may_alias
4205 union { int x; } __attribute__((may_alias)) x;
4206 EOF
4207
4208 check_cc <<EOF || die "endian test failed"
4209 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4210 EOF
4211 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4212
4213 check_gas() {
4214     log "check_gas using '$as' as AS"
4215     # :vararg is used on aarch64, arm and ppc altivec
4216     check_as <<EOF || return 1
4217 .macro m n, y:vararg=0
4218 \n: .int \y
4219 .endm
4220 m x
4221 EOF
4222     # .altmacro is only used in arm asm
4223     ! enabled arm || check_as <<EOF || return 1
4224 .altmacro
4225 EOF
4226     enable gnu_as
4227     return 0
4228 }
4229
4230 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4231     nogas=:
4232     enabled_any arm aarch64 && nogas=die
4233     enabled_all ppc altivec && nogas=warn
4234     as_noop=-v
4235
4236     case $as_type in
4237         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4238         gcc)  gaspp_as_type=gas ;;
4239         *)    gaspp_as_type=$as_type ;;
4240     esac
4241
4242     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4243
4244     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4245         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4246
4247     if ! check_gas ; then
4248         as=${gas:=$as}
4249         check_gas || \
4250             $nogas "GNU assembler not found, install/update gas-preprocessor"
4251     fi
4252
4253     check_as <<EOF && enable as_func
4254 .func test
4255 .endfunc
4256 EOF
4257 fi
4258
4259 check_inline_asm inline_asm_labels '"1:\n"'
4260
4261 if enabled aarch64; then
4262     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4263     # internal assembler in clang 3.3 does not support this instruction
4264     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4265     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4266
4267     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4268
4269 elif enabled alpha; then
4270
4271     check_cflags -mieee
4272
4273 elif enabled arm; then
4274
4275     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4276     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4277     enabled thumb && check_cflags -mthumb || check_cflags -marm
4278
4279     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4280         enable vfp_args
4281     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4282         enable vfp_args
4283     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4284         case "${cross_prefix:-$cc}" in
4285             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4286             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4287 __asm__ (".eabi_attribute 28, 1");
4288 int main(void) { return 0; }
4289 EOF
4290         esac
4291         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4292     fi
4293
4294     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4295     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4296     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4297     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4298     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4299     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4300
4301     [ $target_os = linux ] || [ $target_os = android ] ||
4302         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4303             $ARCH_EXT_LIST_ARM
4304
4305     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4306
4307     check_as <<EOF && enable as_dn_directive
4308 ra .dn d0.i16
4309 .unreq ra
4310 EOF
4311     check_as <<EOF && enable as_fpu_directive
4312 .fpu neon
4313 EOF
4314
4315     # llvm's integrated assembler supports .object_arch from llvm 3.5
4316     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4317 .object_arch armv4
4318 EOF
4319
4320     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4321
4322 elif enabled mips; then
4323
4324     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4325
4326     # make sure that only an instruction set is enabled
4327     disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4328
4329     if enabled mips64; then
4330         check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4331             check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4332                 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4333     else
4334         check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4335             check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4336                 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4337     fi
4338
4339 elif enabled parisc; then
4340
4341     if enabled gcc; then
4342         case $($cc -dumpversion) in
4343             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4344         esac
4345     fi
4346
4347 elif enabled ppc; then
4348
4349     enable local_aligned_8 local_aligned_16 local_aligned_32
4350
4351     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4352     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4353     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4354     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4355
4356     # AltiVec flags: The FSF version of GCC differs from the Apple version
4357     if enabled altivec; then
4358         check_cflags -maltivec -mabi=altivec &&
4359         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4360         check_cflags -faltivec
4361
4362         # check if our compiler supports Motorola AltiVec C API
4363         check_cc <<EOF || disable altivec
4364 $inc_altivec_h
4365 int main(void) {
4366     vector signed int v1 = (vector signed int) { 0 };
4367     vector signed int v2 = (vector signed int) { 1 };
4368     v1 = vec_add(v1, v2);
4369     return 0;
4370 }
4371 EOF
4372
4373         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4374     fi
4375
4376     if enabled vsx; then
4377         check_cflags -mvsx &&
4378         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4379     fi
4380
4381     if enabled power8; then
4382         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
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     if ! disabled_any asm mmx yasm; then
4414         if check_cmd $yasmexe --version; then
4415             enabled x86_64 && yasm_extra="-m amd64"
4416             yasm_debug="-g dwarf2"
4417         elif check_cmd nasm -v; then
4418             yasmexe=nasm
4419             yasm_debug="-g -F dwarf"
4420             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4421         fi
4422
4423         YASMFLAGS="-f $objformat $yasm_extra"
4424         enabled pic               && append YASMFLAGS "-DPIC"
4425         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4426         case "$objformat" in
4427             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4428         esac
4429
4430         check_yasm "movbe ecx, [5]" && enable yasm ||
4431             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4432         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4433         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4434         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4435         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4436         check_yasm "CPU amdnop" || disable cpunop
4437     fi
4438
4439     case "$cpu" in
4440         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4441             disable fast_clz
4442         ;;
4443     esac
4444
4445 fi
4446
4447 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4448
4449 check_ldflags -Wl,--as-needed
4450
4451 if check_func dlopen; then
4452     ldl=
4453 elif check_func dlopen -ldl; then
4454     ldl=-ldl
4455 fi
4456
4457 if ! disabled network; then
4458     check_func getaddrinfo $network_extralibs
4459     check_func inet_aton $network_extralibs
4460
4461     check_type netdb.h "struct addrinfo"
4462     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4463     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4464     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4465     check_type poll.h "struct pollfd"
4466     check_type netinet/sctp.h "struct sctp_event_subscribe"
4467     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4468     check_type netinet/in.h "struct sockaddr_in6"
4469     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4470     check_type "sys/types.h sys/socket.h" socklen_t
4471
4472     # Prefer arpa/inet.h over winsock2
4473     if check_header arpa/inet.h ; then
4474         check_func closesocket
4475     elif check_header winsock2.h ; then
4476         check_func_headers winsock2.h closesocket -lws2 &&
4477             network_extralibs="-lws2" ||
4478         { check_func_headers winsock2.h closesocket -lws2_32 &&
4479             network_extralibs="-lws2_32"; } || disable winsock2_h network
4480         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4481
4482         check_type ws2tcpip.h socklen_t
4483         check_type ws2tcpip.h "struct addrinfo"
4484         check_type ws2tcpip.h "struct group_source_req"
4485         check_type ws2tcpip.h "struct ip_mreq_source"
4486         check_type ws2tcpip.h "struct ipv6_mreq"
4487         check_type winsock2.h "struct pollfd"
4488         check_struct winsock2.h "struct sockaddr" sa_len
4489         check_type ws2tcpip.h "struct sockaddr_in6"
4490         check_type ws2tcpip.h "struct sockaddr_storage"
4491     else
4492         disable network
4493     fi
4494 fi
4495
4496 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4497 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4498 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4499 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4500
4501 case "$custom_allocator" in
4502     jemalloc)
4503         # jemalloc by default does not use a prefix
4504         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4505     ;;
4506     tcmalloc)
4507         require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4508         malloc_prefix=tc_
4509     ;;
4510 esac
4511
4512 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4513 check_func  ${malloc_prefix}memalign            && enable memalign
4514 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4515
4516 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4517     check_func_headers time.h clock_gettime ||
4518         { check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }
4519
4520 check_func  fcntl
4521 check_func  fork
4522 check_func  gethrtime
4523 check_func  getopt
4524 check_func  getrusage
4525 check_func  gettimeofday
4526 check_func  gmtime_r
4527 check_func  isatty
4528 check_func  localtime_r
4529 check_func  mach_absolute_time
4530 check_func  mkstemp
4531 check_func  mmap
4532 check_func  mprotect
4533 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4534 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4535 check_func  sched_getaffinity
4536 check_func  setrlimit
4537 check_func  strerror_r
4538 check_func  sysconf
4539 check_func  sysctl
4540 check_func  usleep
4541
4542 check_func_headers io.h setmode
4543 check_func_headers stdlib.h getenv
4544
4545 check_func_headers windows.h GetProcessAffinityMask
4546 check_func_headers windows.h GetProcessTimes
4547 check_func_headers windows.h GetSystemTimeAsFileTime
4548 check_func_headers windows.h LoadLibrary
4549 check_func_headers windows.h MapViewOfFile
4550 check_func_headers windows.h SetConsoleTextAttribute
4551 check_func_headers windows.h Sleep
4552 check_func_headers windows.h VirtualAlloc
4553 check_struct windows.h "CONDITION_VARIABLE" Ptr
4554
4555 check_header d3d11.h
4556 check_header direct.h
4557 check_header dlfcn.h
4558 check_header dxva.h
4559 check_header dxva2api.h
4560 check_header io.h
4561 check_header mach/mach_time.h
4562 check_header malloc.h
4563 check_header poll.h
4564 check_header sys/mman.h
4565 check_header sys/param.h
4566 check_header sys/resource.h
4567 check_header sys/select.h
4568 check_header sys/time.h
4569 check_header sys/un.h
4570 check_header unistd.h
4571 check_header valgrind/valgrind.h
4572 check_header VideoDecodeAcceleration/VDADecoder.h
4573 check_header windows.h
4574 check_header X11/extensions/XvMClib.h
4575
4576 # it seems there are versions of clang in some distros that try to use the
4577 # gcc headers, which explodes for stdatomic
4578 # so we also check that atomics actually work here
4579 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4580
4581 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
4582 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
4583 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
4584
4585 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4586
4587 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4588 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4589 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4590
4591 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4592 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4593 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4594 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4595 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4596 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4597 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4598 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
4599
4600 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4601
4602 if ! disabled w32threads && ! enabled pthreads; then
4603     check_lib w32threads "windows.h process.h" _beginthreadex
4604 fi
4605
4606 # check for some common methods of building with pthread support
4607 # do this before the optional library checks as some of them require pthreads
4608 if ! disabled pthreads && ! enabled w32threads; then
4609     if check_lib pthreads pthread.h pthread_join -pthread; then
4610         add_cflags -pthread
4611     elif check_lib pthreads pthread.h pthread_join -pthreads; then
4612         add_cflags -pthreads
4613     elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4614         :
4615     elif check_lib pthreads pthread.h pthread_join -lpthread; then
4616         :
4617     elif check_func pthread_join; then
4618         enable pthreads
4619     fi
4620 fi
4621
4622 enabled pthreads &&
4623     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4624
4625 disabled  zlib || check_lib  zlib  zlib.h      zlibVersion -lz
4626 disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4627
4628 check_lib libm math.h sin -lm && LIBM="-lm"
4629
4630 atan2f_args=2
4631 ldexpf_args=2
4632 powf_args=2
4633
4634 for func in $MATH_FUNCS; do
4635     eval check_mathfunc $func \${${func}_args:-1} $LIBM
4636 done
4637
4638 # these are off by default, so fail if requested and not available
4639 enabled avisynth          && { check_header avisynth/avisynth_c.h || die "ERROR: avisynth/avisynth_c.h header not found"; }
4640 enabled avxsynth          && require avxsynth "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl
4641 enabled cuda              && require cuda cuda.h cuInit -lcuda
4642 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4643 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4644 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4645 enabled libdc1394         && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
4646 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4647 enabled libfaac           && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4648 enabled libfdk_aac        && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4649 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4650 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4651 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4652                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
4653                                done || die "ERROR: libgsm not found"; }
4654 enabled libhdcd           && require_pkg_config libhdcd "hdcd/hdcd_simple.h" hdcd_new
4655 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4656 enabled libkvazaar        && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4657 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4658 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4659 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4660 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4661 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4662 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4663 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4664 enabled libopenjpeg       && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4665                                require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4666 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4667 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4668 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4669 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4670 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy
4671 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4672 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4673 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4674 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4675 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4676 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4677 enabled libvpx            && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4678     enabled libvpx_vp8_decoder && {
4679         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4680             disable libvpx_vp8_decoder;
4681     }
4682     enabled libvpx_vp8_encoder && {
4683         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4684             disable libvpx_vp8_encoder;
4685     }
4686     enabled libvpx_vp9_decoder && {
4687         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4688             disable libvpx_vp9_decoder;
4689     }
4690     enabled libvpx_vp9_encoder && {
4691         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4692             disable libvpx_vp9_encoder;
4693     }
4694     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4695         die "libvpx enabled but no supported decoders found"
4696     fi
4697 }
4698 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4699 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4700 enabled libx264           && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4701                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4702                                die "ERROR: libx264 version must be >= 0.118."; } &&
4703                              { check_cpp_condition x264.h "X264_MPEG2" &&
4704                                enable libx262; }
4705 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
4706                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4707                                die "ERROR: libx265 version must be >= 57."; }
4708 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4709 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4710 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4711                                { ! enabled cross_compile &&
4712                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4713                                  add_ldflags -L/opt/vc/lib/ &&
4714                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4715                                die "ERROR: mmal not found" &&
4716                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4717 enabled omx_rpi           && { check_header OMX_Core.h ||
4718                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4719                                die "ERROR: OpenMAX IL headers not found"; }
4720 enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }
4721 enabled openssl           && { { check_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||
4722                                  check_pkg_config openssl openssl/ssl.h SSL_library_init; } && {
4723                                add_cflags $openssl_cflags && add_extralibs $openssl_extralibs; } ||
4724                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4725                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4726                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4727                                die "ERROR: openssl not found"; }
4728
4729 enabled gnutls            && check_lib gmp gmp.h mpz_export -lgmp
4730
4731 if enabled nvenc; then
4732     check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."
4733     check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
4734         die "ERROR: NVENC API version 5 or older is not supported"
4735 fi
4736
4737 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4738     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4739     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4740     enable sdl
4741 fi
4742
4743 ! disabled pod2man   && check_cmd pod2man --help     && enable pod2man   || disable pod2man
4744 ! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
4745
4746 check_header linux/fb.h
4747 check_header linux/videodev2.h
4748 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4749
4750 check_header AVFoundation/AVFoundation.h
4751
4752 check_header sys/videoio.h
4753
4754 check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
4755 check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
4756 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4757 # w32api 3.12 had it defined wrong
4758 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4759
4760 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4761 { check_header dev/bktr/ioctl_meteor.h &&
4762   check_header dev/bktr/ioctl_bt848.h; } ||
4763 { check_header machine/ioctl_meteor.h &&
4764   check_header machine/ioctl_bt848.h; } ||
4765 { check_header dev/video/meteor/ioctl_meteor.h &&
4766   check_header dev/video/bktr/ioctl_bt848.h; } ||
4767 check_header dev/ic/bt8xx.h
4768
4769 check_header sys/soundcard.h
4770 check_header soundcard.h
4771
4772 enabled_any alsa_indev alsa_outdev &&
4773     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
4774
4775 enabled jack_indev && check_lib jack jack/jack.h jack_client_open -ljack &&
4776     check_func jack_port_get_latency_range -ljack
4777
4778 enabled_any sndio_indev sndio_outdev && check_lib sndio sndio.h sio_open -lsndio
4779
4780 if enabled libcdio; then
4781     check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4782     check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4783     die "ERROR: No usable libcdio/cdparanoia found"
4784 fi
4785
4786 if enabled libxcb; then
4787     check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4788         enabled libxcb && die "ERROR: libxcb not found";
4789     } && enable libxcb
4790
4791     disabled libxcb_shm ||
4792         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4793             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4794         } && check_header sys/shm.h && enable libxcb_shm
4795
4796     disabled libxcb_xfixes ||
4797         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4798             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4799         } && enable libxcb_xfixes
4800
4801     add_cflags "$xcb_shape_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4802     add_extralibs "$xcb_shape_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs"
4803 fi
4804
4805 enabled dxva2 &&
4806     check_lib dxva2_lib windows.h CoTaskMemFree -lole32
4807
4808 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4809
4810 enabled vaapi &&
4811     check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4812     disable vaapi
4813
4814 enabled vaapi &&
4815     check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm
4816
4817 enabled vaapi &&
4818     check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11
4819
4820 enabled vdpau &&
4821     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4822     disable vdpau
4823
4824 enabled vdpau &&
4825     check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
4826
4827 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4828
4829 # add some useful compiler flags if supported
4830 check_cflags -Wdeclaration-after-statement
4831 check_cflags -Wall
4832 check_cflags -Wdisabled-optimization
4833 check_cflags -Wpointer-arith
4834 check_cflags -Wredundant-decls
4835 check_cflags -Wwrite-strings
4836 check_cflags -Wtype-limits
4837 check_cflags -Wundef
4838 check_cflags -Wmissing-prototypes
4839 check_cflags -Wstrict-prototypes
4840
4841 if enabled extra_warnings; then
4842     check_cflags -Wcast-qual
4843     check_cflags -Wextra
4844     check_cflags -Wpedantic
4845 fi
4846
4847 check_disable_warning(){
4848     warning_flag=-W${1#-Wno-}
4849     test_cflags $warning_flag && add_cflags $1
4850 }
4851
4852 check_disable_warning -Wno-parentheses
4853 check_disable_warning -Wno-switch
4854 check_disable_warning -Wno-format-zero-length
4855 check_disable_warning -Wno-pointer-sign
4856
4857 check_disable_warning_headers(){
4858     warning_flag=-W${1#-Wno-}
4859     test_cflags $warning_flag && add_cflags_headers $1
4860 }
4861
4862 check_disable_warning_headers -Wno-deprecated-declarations
4863 check_disable_warning_headers -Wno-unused-variable
4864
4865 check_objcflags -fobjc-arc && enable objc_arc
4866
4867 check_cc <<EOF && enable blocks_extension
4868 void (^block)(void);
4869 EOF
4870
4871 # add some linker flags
4872 check_ldflags -Wl,--warn-common
4873 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4874 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4875 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4876
4877 # add some strip flags
4878 # -wN '..@*' is more selective than -x, but not available everywhere.
4879 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4880
4881 enabled neon_clobber_test &&
4882     check_ldflags -Wl,--wrap,avcodec_open2              \
4883                   -Wl,--wrap,avcodec_decode_audio4      \
4884                   -Wl,--wrap,avcodec_decode_video2      \
4885                   -Wl,--wrap,avcodec_decode_subtitle2   \
4886                   -Wl,--wrap,avcodec_encode_audio2      \
4887                   -Wl,--wrap,avcodec_encode_video2      \
4888                   -Wl,--wrap,avcodec_encode_subtitle    \
4889                   -Wl,--wrap,avcodec_send_packet        \
4890                   -Wl,--wrap,avcodec_receive_packet     \
4891                   -Wl,--wrap,avcodec_send_frame         \
4892                   -Wl,--wrap,avcodec_receive_frame      \
4893                   -Wl,--wrap,avresample_convert ||
4894     disable neon_clobber_test
4895
4896 enabled xmm_clobber_test &&
4897     check_ldflags -Wl,--wrap,avcodec_open2              \
4898                   -Wl,--wrap,avcodec_decode_audio4      \
4899                   -Wl,--wrap,avcodec_decode_video2      \
4900                   -Wl,--wrap,avcodec_decode_subtitle2   \
4901                   -Wl,--wrap,avcodec_encode_audio2      \
4902                   -Wl,--wrap,avcodec_encode_video2      \
4903                   -Wl,--wrap,avcodec_encode_subtitle    \
4904                   -Wl,--wrap,avcodec_send_packet        \
4905                   -Wl,--wrap,avcodec_receive_packet     \
4906                   -Wl,--wrap,avcodec_send_frame         \
4907                   -Wl,--wrap,avcodec_receive_frame      \
4908                   -Wl,--wrap,avresample_convert         \
4909                   -Wl,--wrap,sws_scale ||
4910     disable xmm_clobber_test
4911
4912 check_ld <<EOF && enable proper_dce
4913 extern const int array[512];
4914 static inline int func(void) { return array[0]; }
4915 int main(void) { return 0; }
4916 EOF
4917
4918 if enabled proper_dce; then
4919     echo "X { local: *; };" > $TMPV
4920     if test_ldflags -Wl,${version_script},$TMPV; then
4921         append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4922         check_cc <<EOF && enable symver_asm_label
4923 void ff_foo(void) __asm__ ("av_foo@VERSION");
4924 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4925 EOF
4926         check_cc <<EOF && enable symver_gnu_asm
4927 __asm__(".symver ff_foo,av_foo@VERSION");
4928 void ff_foo(void) {}
4929 EOF
4930     fi
4931 fi
4932
4933 if [ -z "$optflags" ]; then
4934     if enabled small; then
4935         optflags=$cflags_size
4936     elif enabled optimizations; then
4937         optflags=$cflags_speed
4938     else
4939         optflags=$cflags_noopt
4940     fi
4941 fi
4942
4943 check_optflags(){
4944     check_cflags "$@"
4945     enabled lto && check_ldflags "$@"
4946 }
4947
4948 check_optflags $optflags
4949 check_optflags -fno-math-errno
4950 check_optflags -fno-signed-zeros
4951
4952 if enabled lto; then
4953     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4954     check_cflags  -flto
4955     check_ldflags -flto $cpuflags
4956 fi
4957
4958 if enabled icc; then
4959     # Just warnings, no remarks
4960     check_cflags -w1
4961     # -wd: Disable following warnings
4962     # 144, 167, 556: -Wno-pointer-sign
4963     # 1292: attribute "foo" ignored
4964     # 1419: external declaration in primary source file
4965     # 10006: ignoring unknown option -fno-signed-zeros
4966     # 10148: ignoring unknown option -Wno-parentheses
4967     # 10156: ignoring option '-W'; no argument required
4968     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4969     # 11030: Warning unknown option --as-needed
4970     # 10156: ignoring option '-export'; no argument required
4971     check_ldflags -wd10156,11030
4972     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4973     enable ebp_available
4974     if enabled x86_32; then
4975         icc_version=$($cc -dumpversion)
4976         test ${icc_version%%.*} -ge 11 &&
4977             check_cflags -falign-stack=maintain-16-byte ||
4978             disable aligned_stack
4979     fi
4980 elif enabled ccc; then
4981     # disable some annoying warnings
4982     add_cflags -msg_disable bitnotint
4983     add_cflags -msg_disable mixfuncvoid
4984     add_cflags -msg_disable nonstandcast
4985     add_cflags -msg_disable unsupieee
4986 elif enabled gcc; then
4987     check_optflags -fno-tree-vectorize
4988     check_cflags -Werror=implicit-function-declaration
4989     check_cflags -Werror=missing-prototypes
4990     check_cflags -Werror=return-type
4991     check_cflags -Werror=declaration-after-statement
4992     check_cflags -Werror=vla
4993     check_cflags -Werror=format-security
4994     check_cflags -fdiagnostics-color=auto
4995     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4996 elif enabled llvm_gcc; then
4997     check_cflags -mllvm -stack-alignment=16
4998 elif enabled clang; then
4999     check_cflags -mllvm -stack-alignment=16
5000     check_cflags -Qunused-arguments
5001     check_cflags -Werror=implicit-function-declaration
5002     check_cflags -Werror=missing-prototypes
5003     check_cflags -Werror=return-type
5004 elif enabled cparser; then
5005     add_cflags -Wno-missing-variable-declarations
5006     add_cflags -Wno-empty-statement
5007 elif enabled armcc; then
5008     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5009     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5010     # 2523: use of inline assembly is deprecated
5011     add_cflags -W${armcc_opt},--diag_suppress=2523
5012     add_cflags -W${armcc_opt},--diag_suppress=1207
5013     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5014     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5015     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
5016     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
5017 elif enabled tms470; then
5018     add_cflags -pds=824 -pds=837
5019     disable inline_asm
5020 elif enabled pathscale; then
5021     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5022 elif enabled_any msvc icl; then
5023     enabled x86_32 && disable aligned_stack
5024     enabled_all x86_32 debug && add_cflags -Oy-
5025     enabled debug && add_ldflags -debug
5026     enable pragma_deprecated
5027     if enabled icl; then
5028         # -Qansi-alias is basically -fstrict-aliasing, but does not work
5029         # (correctly) on icl 13.x.
5030         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5031             add_cflags -Qansi-alias
5032         # icl will pass the inline asm tests but inline asm is currently
5033         # not supported (build will fail)
5034         disable inline_asm
5035     fi
5036     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5037     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5038     # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5039     # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5040     # (as it ends up if the restrict redefine is done before including stdlib.h), while
5041     # MSVC 2013 and newer can handle it fine.
5042     # If this declspec fails, force including stdlib.h before the restrict redefinition
5043     # happens in config.h.
5044     if [ $_restrict != restrict ]; then
5045         check_cc <<EOF || add_cflags -FIstdlib.h
5046 __declspec($_restrict) void* foo(int);
5047 EOF
5048     fi
5049 fi
5050
5051 for pfx in "" host_; do
5052     varname=${pfx%_}cc_type
5053     eval "type=\$$varname"
5054     if [ "$type" = "msvc" ]; then
5055         check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5056 static inline int foo(int a) { return a; }
5057 EOF
5058     fi
5059 done
5060
5061 case $as_type in
5062     clang)
5063         add_asflags -Qunused-arguments
5064     ;;
5065 esac
5066
5067 case $ld_type in
5068     clang)
5069         check_ldflags -Qunused-arguments
5070     ;;
5071 esac
5072
5073 case $target_os in
5074     osf1)
5075         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5076     ;;
5077 esac
5078
5079 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5080
5081 check_deps $CONFIG_LIST       \
5082            $CONFIG_EXTRA      \
5083            $HAVE_LIST         \
5084            $ALL_COMPONENTS    \
5085
5086 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5087
5088 for thread in $THREADS_LIST; do
5089     if enabled $thread; then
5090         test -n "$thread_type" &&
5091             die "ERROR: Only one thread type must be selected." ||
5092             thread_type="$thread"
5093     fi
5094 done
5095
5096 if disabled stdatomic_h; then
5097     if enabled atomics_gcc; then
5098         add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
5099     elif enabled atomics_win32; then
5100         add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
5101     elif enabled atomics_suncc; then
5102         add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
5103     elif enabled pthreads; then
5104         add_compat atomics/pthread/stdatomic.o
5105         add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
5106     else
5107         enabled threads && die "Threading is enabled, but no atomics are available"
5108         add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
5109     fi
5110 fi
5111
5112 enabled zlib && add_cppflags -DZLIB_CONST
5113
5114 # conditional library dependencies, in linking order
5115 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
5116 enabled_any asyncts_filter resample_filter &&
5117                            prepend avfilter_deps "avresample"
5118 enabled scale_filter    && prepend avfilter_deps "swscale"
5119
5120 enabled opus_decoder    && prepend avcodec_deps "avresample"
5121
5122 expand_deps(){
5123     lib_deps=${1}_deps
5124     eval "deps=\$$lib_deps"
5125     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5126     unique $lib_deps
5127 }
5128
5129 map 'expand_deps $v' $LIBRARY_LIST
5130
5131 if test "$quiet" != "yes"; then
5132
5133 echo "install prefix            $prefix"
5134 echo "source path               $source_path"
5135 echo "C compiler                $cc"
5136 echo "C library                 $libc_type"
5137 if test "$host_cc" != "$cc"; then
5138     echo "host C compiler           $host_cc"
5139     echo "host C library            $host_libc_type"
5140 fi
5141 echo "ARCH                      $arch ($cpu)"
5142 if test "$extra_version" != ""; then
5143     echo "version string suffix     $extra_version"
5144 fi
5145 echo "big-endian                ${bigendian-no}"
5146 echo "runtime cpu detection     ${runtime_cpudetect-no}"
5147 if enabled x86; then
5148     echo "${yasmexe}                      ${yasm-no}"
5149     echo "MMX enabled               ${mmx-no}"
5150     echo "MMXEXT enabled            ${mmxext-no}"
5151     echo "3DNow! enabled            ${amd3dnow-no}"
5152     echo "3DNow! extended enabled   ${amd3dnowext-no}"
5153     echo "SSE enabled               ${sse-no}"
5154     echo "SSSE3 enabled             ${ssse3-no}"
5155     echo "AVX enabled               ${avx-no}"
5156     echo "XOP enabled               ${xop-no}"
5157     echo "FMA3 enabled              ${fma3-no}"
5158     echo "FMA4 enabled              ${fma4-no}"
5159     echo "i686 features enabled     ${i686-no}"
5160     echo "CMOV is fast              ${fast_cmov-no}"
5161     echo "EBX available             ${ebx_available-no}"
5162     echo "EBP available             ${ebp_available-no}"
5163 fi
5164 if enabled aarch64; then
5165     echo "NEON enabled              ${neon-no}"
5166     echo "VFP enabled               ${vfp-no}"
5167 fi
5168 if enabled arm; then
5169     echo "ARMv5TE enabled           ${armv5te-no}"
5170     echo "ARMv6 enabled             ${armv6-no}"
5171     echo "ARMv6T2 enabled           ${armv6t2-no}"
5172     echo "VFP enabled               ${vfp-no}"
5173     echo "NEON enabled              ${neon-no}"
5174 fi
5175 if enabled ppc; then
5176     echo "AltiVec enabled           ${altivec-no}"
5177     echo "VSX enabled               ${vsx-no}"
5178     echo "POWER8 enabled            ${power8-no}"
5179     echo "PPC 4xx optimizations     ${ppc4xx-no}"
5180     echo "dcbzl available           ${dcbzl-no}"
5181 fi
5182 echo "debug symbols             ${debug-no}"
5183 echo "optimize for size         ${small-no}"
5184 echo "optimizations             ${optimizations-no}"
5185 echo "static                    ${static-no}"
5186 echo "shared                    ${shared-no}"
5187 echo "network support           ${network-no}"
5188 echo "threading support         ${thread_type-no}"
5189 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
5190 test -n "$random_seed" &&
5191     echo "random seed               ${random_seed}"
5192 echo
5193
5194 echo "External libraries:"
5195 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5196 echo
5197 echo "External libraries providing hardware acceleration:"
5198 print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5199 echo
5200
5201 echo "Libraries:"
5202 print_enabled '' $LIBRARY_LIST | print_3_columns
5203 echo
5204
5205 echo "Programs:"
5206 print_enabled '' $PROGRAM_LIST | print_3_columns
5207 echo
5208
5209 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5210     echo "Enabled ${type}s:"
5211     eval list=\$$(toupper $type)_LIST
5212     print_enabled '_*' $list | print_3_columns
5213     echo
5214 done
5215
5216 if test -n "$ignore_tests"; then
5217     ignore_tests=$(echo $ignore_tests | tr ',' ' ')
5218     echo "Ignored FATE tests:"
5219     echo $ignore_tests | print_3_columns
5220     echo
5221 fi
5222
5223 license="LGPL version 2.1 or later"
5224 if enabled nonfree; then
5225     license="nonfree and unredistributable"
5226 elif enabled gplv3; then
5227     license="GPL version 3 or later"
5228 elif enabled lgplv3; then
5229     license="LGPL version 3 or later"
5230 elif enabled gpl; then
5231     license="GPL version 2 or later"
5232 fi
5233
5234 echo "License: $license"
5235
5236 echo "Creating configuration files ..."
5237
5238 fi # test "$quiet" != "yes"
5239
5240 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5241
5242 config_files="$TMPH avbuild/config.mak"
5243
5244 cat > avbuild/config.mak <<EOF
5245 # Automatically generated by configure - do not modify!
5246 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5247 prefix=$prefix
5248 LIBDIR=\$(DESTDIR)$libdir
5249 SHLIBDIR=\$(DESTDIR)$shlibdir
5250 INCDIR=\$(DESTDIR)$incdir
5251 BINDIR=\$(DESTDIR)$bindir
5252 DATADIR=\$(DESTDIR)$datadir
5253 DOCDIR=\$(DESTDIR)$docdir
5254 MANDIR=\$(DESTDIR)$mandir
5255 SRC_PATH=$source_path
5256 CC_IDENT=$cc_ident
5257 ARCH=$arch
5258 INTRINSICS=$intrinsics
5259 CC=$cc
5260 OBJCC=$cc
5261 AS=$as
5262 OBJCC=$objcc
5263 LD=$ld
5264 DEPCC=$dep_cc
5265 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5266 DEPAS=$as
5267 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5268 YASM=$yasmexe
5269 DEPYASM=$yasmexe
5270 AR=$ar
5271 ARFLAGS=$arflags
5272 AR_O=$ar_o
5273 RANLIB=$ranlib
5274 STRIP=$strip
5275 LN_S=$ln_s
5276 CPPFLAGS=$CPPFLAGS
5277 CFLAGS=$CFLAGS
5278 OBJCFLAGS=$OBJCFLAGS
5279 ASFLAGS=$ASFLAGS
5280 AS_C=$AS_C
5281 AS_O=$AS_O
5282 OBJCC_C=$OBJCC_C
5283 OBJCC_E=$OBJCC_E
5284 OBJCC_O=$OBJCC_O
5285 CC_C=$CC_C
5286 CC_E=$CC_E
5287 CC_O=$CC_O
5288 LD_O=$LD_O
5289 LD_LIB=$LD_LIB
5290 LD_PATH=$LD_PATH
5291 DLLTOOL=$dlltool
5292 LDFLAGS=$LDFLAGS
5293 LDEXEFLAGS=$LDEXEFLAGS
5294 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5295 STRIPFLAGS=$STRIPFLAGS
5296 YASMFLAGS=$YASMFLAGS
5297 LIBPREF=$LIBPREF
5298 LIBSUF=$LIBSUF
5299 LIBNAME=$LIBNAME
5300 SLIBPREF=$SLIBPREF
5301 SLIBSUF=$SLIBSUF
5302 EXESUF=$EXESUF
5303 EXTRA_VERSION=$extra_version
5304 CCDEP=$CCDEP
5305 CCDEP_FLAGS=$CCDEP_FLAGS
5306 ASDEP=$ASDEP
5307 ASDEP_FLAGS=$ASDEP_FLAGS
5308 CC_DEPFLAGS=$CC_DEPFLAGS
5309 AS_DEPFLAGS=$AS_DEPFLAGS
5310 HOSTCC=$host_cc
5311 HOSTLD=$host_ld
5312 HOSTCFLAGS=$host_cflags
5313 HOSTCPPFLAGS=$host_cppflags
5314 HOSTEXESUF=$HOSTEXESUF
5315 HOSTLDFLAGS=$host_ldflags
5316 HOSTEXTRALIBS=$host_extralibs
5317 DEPHOSTCC=$host_cc
5318 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5319 HOSTCCDEP=$HOSTCCDEP
5320 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5321 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5322 HOSTCC_C=$HOSTCC_C
5323 HOSTCC_O=$HOSTCC_O
5324 HOSTLD_O=$HOSTLD_O
5325 TARGET_EXEC=$target_exec $target_exec_args
5326 TARGET_PATH=$target_path
5327 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5328 CFLAGS-avplay=$sdl_cflags
5329 CFLAGS_HEADERS=$CFLAGS_HEADERS
5330 ZLIB=$($ldflags_filter -lz)
5331 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5332 EXTRALIBS=$extralibs
5333 COMPAT_OBJS=$compat_objs
5334 INSTALL=install
5335 LIBTARGET=${LIBTARGET}
5336 SLIBNAME=${SLIBNAME}
5337 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5338 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5339 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5340 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5341 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5342 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5343 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5344 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5345 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5346 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5347 IGNORE_TESTS=$ignore_tests
5348 EOF
5349
5350 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> avbuild/config.mak' $LIBRARY_LIST
5351
5352 print_program_extralibs(){
5353     eval "program_extralibs=\$${1}_extralibs"
5354     eval echo "EXTRALIBS-${1}=${program_extralibs}" >> avbuild/config.mak
5355 }
5356
5357 map 'print_program_extralibs $v' $PROGRAM_LIST
5358
5359 cat > $TMPH <<EOF
5360 /* Automatically generated by configure - do not modify! */
5361 #ifndef LIBAV_CONFIG_H
5362 #define LIBAV_CONFIG_H
5363 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5364 #define LIBAV_LICENSE "$(c_escape $license)"
5365 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5366 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5367 #define restrict $_restrict
5368 #define EXTERN_PREFIX "${extern_prefix}"
5369 #define EXTERN_ASM ${extern_prefix}
5370 #define SLIBSUF "$SLIBSUF"
5371 EOF
5372
5373 test -n "$malloc_prefix" &&
5374     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5375
5376 if enabled yasm; then
5377     append config_files $TMPASM
5378     printf '' >$TMPASM
5379 fi
5380
5381 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5382
5383 print_config ARCH_   "$config_files" $ARCH_LIST
5384 print_config HAVE_   "$config_files" $HAVE_LIST
5385 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
5386                                      $CONFIG_EXTRA      \
5387                                      $ALL_COMPONENTS    \
5388
5389 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5390
5391 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5392 cp_if_changed $TMPH config.h
5393 touch avbuild/.config
5394
5395 enabled yasm && cp_if_changed $TMPASM config.asm
5396
5397 cat > $TMPH <<EOF
5398 /* Generated by ffconf */
5399 #ifndef AVUTIL_AVCONFIG_H
5400 #define AVUTIL_AVCONFIG_H
5401 EOF
5402
5403 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5404
5405 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5406
5407 cp_if_changed $TMPH libavutil/avconfig.h
5408
5409 # generate the lists of enabled components
5410 print_enabled_components(){
5411     file=$1
5412     struct_name=$2
5413     name=$3
5414     shift 3
5415     echo "static const $struct_name * const $name[] = {" > $TMPH
5416     for c in $*; do
5417         enabled $c && printf "    &ff_%s,\n" $c >> $TMPH
5418     done
5419     echo "    NULL };" >> $TMPH
5420     cp_if_changed $TMPH $file
5421 }
5422
5423 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5424 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5425
5426 test -n "$WARNINGS" && printf "\n$WARNINGS"
5427
5428 # Settings for pkg-config files
5429
5430 cat > avbuild/config.sh <<EOF
5431 # Automatically generated by configure - do not modify!
5432 shared=$shared
5433 prefix=$prefix
5434 libdir=$libdir
5435 incdir=$incdir
5436 source_path=${source_path}
5437 LIBPREF=${LIBPREF}
5438 LIBSUF=${LIBSUF}
5439 extralibs_avutil="$LIBRT $LIBM"
5440 extralibs_avcodec="$extralibs"
5441 extralibs_avformat="$extralibs"
5442 extralibs_avdevice="$extralibs"
5443 extralibs_avfilter="$extralibs"
5444 extralibs_avresample="$LIBM"
5445 extralibs_swscale="$LIBM"
5446 EOF
5447
5448 for lib in $LIBRARY_LIST; do
5449     lib_deps="$(eval echo \$${lib}_deps)"
5450     echo ${lib}_deps=\"$lib_deps\" >> avbuild/config.sh
5451 done