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:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --prefix=PREFIX          install in PREFIX [$prefix]
  82   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  83   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  84   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
  85   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89   --enable-rpath           use rpath when linking programs [USE WITH CARE]
  90
  91 Licensing options:
  92   --enable-gpl             allow use of GPL code, the resulting libs
  93                            and binaries will be under GPL [no]
  94   --enable-version3        upgrade (L)GPL to version 3 [no]
  95   --enable-nonfree         allow use of nonfree code, the resulting libs
  96                            and binaries will be unredistributable [no]
  97
  98 Configuration options:
  99   --disable-static         do not build static libraries [no]
 100   --enable-shared          build shared libraries [no]
 101   --enable-small           optimize for size instead of speed
 102   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 103   --enable-gray            enable full grayscale support (slower color)
 104   --disable-swscale-alpha  disable alpha channel support in swscale
 105   --disable-all            disable building components, libraries and programs
 106
 107 Program options:
 108   --disable-programs       do not build command line programs
 109   --disable-avconv         disable avconv build
 110   --disable-avplay         disable avplay build
 111   --disable-avprobe        disable avprobe build
 112   --disable-avserver       deprecated, does nothing
 113
 114 Component options:
 115   --disable-doc            do not build documentation
 116   --disable-avdevice       disable libavdevice build
 117   --disable-avcodec        disable libavcodec build
 118   --disable-avformat       disable libavformat build
 119   --disable-avutil         disable libavutil build
 120   --disable-swscale        disable libswscale build
 121   --disable-avfilter       disable video filter support [no]
 122   --disable-avresample     disable libavresample build [no]
 123   --disable-pthreads       disable pthreads [auto]
 124   --disable-w32threads     disable Win32 threads [auto]
 125   --disable-network        disable network support [no]
 126   --disable-dct            disable DCT code
 127   --disable-error-resilience disable error resilience code
 128   --disable-lsp            disable LSP code
 129   --disable-lzo            disable LZO decoder code
 130   --disable-mdct           disable MDCT code
 131   --disable-rdft           disable RDFT code
 132   --disable-fft            disable FFT code
 133   --disable-faan           disable floating point AAN (I)DCT code
 134
 135 Hardware accelerators:
 136   --enable-dxva2           enable DXVA2 code
 137   --enable-vaapi           enable VAAPI code
 138   --enable-vda             enable VDA code
 139   --enable-vdpau           enable VDPAU code
 140
 141 Individual component options:
 142   --disable-everything     disable all components listed below
 143   --disable-encoder=NAME   disable encoder NAME
 144   --enable-encoder=NAME    enable encoder NAME
 145   --disable-encoders       disable all encoders
 146   --disable-decoder=NAME   disable decoder NAME
 147   --enable-decoder=NAME    enable decoder NAME
 148   --disable-decoders       disable all decoders
 149   --disable-hwaccel=NAME   disable hwaccel NAME
 150   --enable-hwaccel=NAME    enable hwaccel NAME
 151   --disable-hwaccels       disable all hwaccels
 152   --disable-muxer=NAME     disable muxer NAME
 153   --enable-muxer=NAME      enable muxer NAME
 154   --disable-muxers         disable all muxers
 155   --disable-demuxer=NAME   disable demuxer NAME
 156   --enable-demuxer=NAME    enable demuxer NAME
 157   --disable-demuxers       disable all demuxers
 158   --enable-parser=NAME     enable parser NAME
 159   --disable-parser=NAME    disable parser NAME
 160   --disable-parsers        disable all parsers
 161   --enable-bsf=NAME        enable bitstream filter NAME
 162   --disable-bsf=NAME       disable bitstream filter NAME
 163   --disable-bsfs           disable all bitstream filters
 164   --enable-protocol=NAME   enable protocol NAME
 165   --disable-protocol=NAME  disable protocol NAME
 166   --disable-protocols      disable all protocols
 167   --enable-indev=NAME      enable input device NAME
 168   --disable-indev=NAME     disable input device NAME
 169   --disable-indevs         disable input devices
 170   --enable-outdev=NAME     enable output device NAME
 171   --disable-outdev=NAME    disable output device NAME
 172   --disable-outdevs        disable output devices
 173   --disable-devices        disable all devices
 174   --enable-filter=NAME     enable filter NAME
 175   --disable-filter=NAME    disable filter NAME
 176   --disable-filters        disable all filters
 177
 178 External library support:
 179   --enable-avisynth        enable reading of AviSynth script files [no]
 180   --enable-bzlib           enable bzlib [autodetect]
 181   --enable-frei0r          enable frei0r video filtering
 182   --enable-gnutls          enable gnutls [no]
 183   --enable-libbs2b         enable bs2b DSP library [no]
 184   --enable-libcdio         enable audio CD grabbing with libcdio
 185   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 186                            and libraw1394 [no]
 187   --enable-libfaac         enable AAC encoding via libfaac [no]
 188   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 189   --enable-libfreetype     enable libfreetype [no]
 190   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 191   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 192   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 193   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 194   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 195   --enable-libopencv       enable video filtering via libopencv [no]
 196   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 197   --enable-libopus         enable Opus de/encoding via libopus [no]
 198   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 199   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 200   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 201   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 202   --enable-libtheora       enable Theora encoding via libtheora [no]
 203   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 204   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 205   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 206   --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
 207   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 208   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 209   --enable-libwebp         enable WebP encoding via libwebp [no]
 210   --enable-libx264         enable H.264 encoding via x264 [no]
 211   --enable-libx265         enable HEVC encoding via x265 [no]
 212   --enable-libxavs         enable AVS encoding via xavs [no]
 213   --enable-libxcb          enable X11 grabbing using XCB [no]
 214   --enable-libxcb-shm      enable X11 grabbing shm communication [auto]
 215   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [auto]
 216   --enable-libxvid         enable Xvid encoding via xvidcore,
 217                            native MPEG-4/Xvid encoder exists [no]
 218   --enable-openssl         enable openssl [no]
 219   --enable-x11grab         enable X11 grabbing (legacy) [no]
 220   --enable-zlib            enable zlib [autodetect]
 221
 222 Toolchain options:
 223   --arch=ARCH              select architecture [$arch]
 224   --cpu=CPU                select the minimum required CPU (affects
 225                            instruction selection, may crash on older CPUs)
 226   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 227   --enable-cross-compile   assume a cross-compiler is used
 228   --sysroot=PATH           root of cross-build tree
 229   --sysinclude=PATH        location of cross-build system headers
 230   --target-os=OS           compiler targets OS [$target_os]
 231   --target-exec=CMD        command to run executables on target
 232   --target-path=DIR        path to view of build directory on target
 233   --target-samples=DIR     path to samples directory on target
 234   --toolchain=NAME         set tool defaults according to NAME
 235   --nm=NM                  use nm tool
 236   --ar=AR                  use archive tool AR [$ar_default]
 237   --as=AS                  use assembler AS [$as_default]
 238   --cc=CC                  use C compiler CC [$cc_default]
 239   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 240   --ld=LD                  use linker LD
 241   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
 242   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
 243   --host-cc=HOSTCC         use host C compiler HOSTCC
 244   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 245   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 246   --host-ld=HOSTLD         use host linker HOSTLD
 247   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 248   --host-libs=HLIBS        use libs HLIBS when linking for host
 249   --host-os=OS             compiler host OS [$target_os]
 250   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 251   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 252   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
 253   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 254   --extra-version=STRING   version string suffix []
 255   --optflags=OPTFLAGS      override optimization-related compiler flags
 256   --build-suffix=SUFFIX    library name suffix []
 257   --enable-pic             build position-independent code
 258   --enable-thumb           compile for Thumb instruction set
 259   --enable-lto             use link-time optimization
 260
 261 Advanced options (experts only):
 262   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 263   --disable-symver         disable symbol versioning
 264   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 265   --disable-safe-bitstream-reader
 266                            disable buffer boundary checking in bitreaders
 267                            (faster, but may crash)
 268   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 269   --enable-sram            allow use of on-chip SRAM
 270
 271 Optimization options (experts only):
 272   --disable-asm            disable all assembly optimizations
 273   --disable-altivec        disable AltiVec optimizations
 274   --disable-amd3dnow       disable 3DNow! optimizations
 275   --disable-amd3dnowext    disable 3DNow! extended optimizations
 276   --disable-mmx            disable MMX optimizations
 277   --disable-mmxext         disable MMXEXT optimizations
 278   --disable-sse            disable SSE optimizations
 279   --disable-sse2           disable SSE2 optimizations
 280   --disable-sse3           disable SSE3 optimizations
 281   --disable-ssse3          disable SSSE3 optimizations
 282   --disable-sse4           disable SSE4 optimizations
 283   --disable-sse42          disable SSE4.2 optimizations
 284   --disable-avx            disable AVX optimizations
 285   --disable-xop            disable XOP optimizations
 286   --disable-fma3           disable FMA3 optimizations
 287   --disable-fma4           disable FMA4 optimizations
 288   --disable-avx2           disable AVX2 optimizations
 289   --disable-armv5te        disable armv5te optimizations
 290   --disable-armv6          disable armv6 optimizations
 291   --disable-armv6t2        disable armv6t2 optimizations
 292   --disable-vfp            disable VFP optimizations
 293   --disable-neon           disable NEON optimizations
 294   --disable-inline-asm     disable use of inline assembly
 295   --disable-yasm           disable use of nasm/yasm assembly
 296
 297 Developer options (useful when working on Libav itself):
 298   --disable-debug          disable debugging symbols
 299   --enable-debug=LEVEL     set the debug level [$debuglevel]
 300   --disable-optimizations  disable compiler optimizations
 301   --enable-extra-warnings  enable more compiler warnings
 302   --samples=PATH           location of test samples for FATE, if not set use
 303                            \$LIBAV_SAMPLES at make invocation time.
 304   --enable-neon-clobber-test check NEON registers for clobbering (should be
 305                            used only for debugging purposes)
 306   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 307                            should be used only for debugging purposes)
 308   --enable-random          randomly enable/disable components
 309   --disable-random
 310   --enable-random=LIST     randomly enable/disable specific components or
 311   --disable-random=LIST    component groups. LIST is a comma-separated list
 312                            of NAME[:PROB] entries where NAME is a component
 313                            (group) and PROB the probability associated with
 314                            NAME (default 0.5).
 315   --random-seed=VALUE      seed value for --enable/disable-random
 316
 317 NOTE: Object files are built at the place where configure is launched.
 318 EOF
 319   exit 0
 320 }
 321
 322 quotes='""'
 323
 324 log(){
 325     echo "$@" >> $logfile
 326 }
 327
 328 log_file(){
 329     log BEGIN $1
 330     pr -n -t $1 >> $logfile
 331     log END $1
 332 }
 333
 334 echolog(){
 335     log "$@"
 336     echo "$@"
 337 }
 338
 339 warn(){
 340     log "WARNING: $*"
 341     WARNINGS="${WARNINGS}WARNING: $*\n"
 342 }
 343
 344 die(){
 345     echolog "$@"
 346     cat <<EOF
 347
 348 If you think configure made a mistake, make sure you are using the latest
 349 version from Git.  If the latest version fails, report the problem to the
 350 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
 351 EOF
 352     if disabled logging; then
 353         cat <<EOF
 354 Rerun configure with logging enabled (do not use --disable-logging), and
 355 include the log this produces with your report.
 356 EOF
 357     else
 358         cat <<EOF
 359 Include the log file "$logfile" produced by configure as this will help
 360 solving the problem.
 361 EOF
 362     fi
 363     exit 1
 364 }
 365
 366 # Avoid locale weirdness, besides we really just want to translate ASCII.
 367 toupper(){
 368     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 369 }
 370
 371 tolower(){
 372     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 373 }
 374
 375 c_escape(){
 376     echo "$*" | sed 's/["\\]/\\\0/g'
 377 }
 378
 379 sh_quote(){
 380     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 381     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 382     echo "$v"
 383 }
 384
 385 cleanws(){
 386     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 387 }
 388
 389 filter(){
 390     pat=$1
 391     shift
 392     for v; do
 393         eval "case $v in $pat) echo $v ;; esac"
 394     done
 395 }
 396
 397 filter_out(){
 398     pat=$1
 399     shift
 400     for v; do
 401         eval "case $v in $pat) ;; *) echo $v ;; esac"
 402     done
 403 }
 404
 405 map(){
 406     m=$1
 407     shift
 408     for v; do eval $m; done
 409 }
 410
 411 add_suffix(){
 412     suffix=$1
 413     shift
 414     for v; do echo ${v}${suffix}; done
 415 }
 416
 417 set_all(){
 418     value=$1
 419     shift
 420     for var in $*; do
 421         eval $var=$value
 422     done
 423 }
 424
 425 set_weak(){
 426     value=$1
 427     shift
 428     for var; do
 429         eval : \${$var:=$value}
 430     done
 431 }
 432
 433 sanitize_var_name(){
 434     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 435 }
 436
 437 set_safe(){
 438     var=$1
 439     shift
 440     eval $(sanitize_var_name "$var")='$*'
 441 }
 442
 443 get_safe(){
 444     eval echo \$$(sanitize_var_name "$1")
 445 }
 446
 447 pushvar(){
 448     for pvar in $*; do
 449         eval level=\${${pvar}_level:=0}
 450         eval ${pvar}_${level}="\$$pvar"
 451         eval ${pvar}_level=$(($level+1))
 452     done
 453 }
 454
 455 popvar(){
 456     for pvar in $*; do
 457         eval level=\${${pvar}_level:-0}
 458         test $level = 0 && continue
 459         eval level=$(($level-1))
 460         eval $pvar="\${${pvar}_${level}}"
 461         eval ${pvar}_level=$level
 462         eval unset ${pvar}_${level}
 463     done
 464 }
 465
 466 enable(){
 467     set_all yes $*
 468 }
 469
 470 disable(){
 471     set_all no $*
 472 }
 473
 474 enable_weak(){
 475     set_weak yes $*
 476 }
 477
 478 disable_weak(){
 479     set_weak no $*
 480 }
 481
 482 enable_safe(){
 483     for var; do
 484         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 485     done
 486 }
 487
 488 disable_safe(){
 489     for var; do
 490         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 491     done
 492 }
 493
 494 do_enable_deep(){
 495     for var; do
 496         enabled $var && continue
 497         eval sel="\$${var}_select"
 498         eval sgs="\$${var}_suggest"
 499         pushvar var sgs
 500         enable_deep $sel
 501         popvar sgs
 502         enable_deep_weak $sgs
 503         popvar var
 504     done
 505 }
 506
 507 enable_deep(){
 508     do_enable_deep $*
 509     enable $*
 510 }
 511
 512 enable_deep_weak(){
 513     for var; do
 514         disabled $var && continue
 515         pushvar var
 516         do_enable_deep $var
 517         popvar var
 518         enable_weak $var
 519     done
 520 }
 521
 522 enabled(){
 523     test "${1#!}" = "$1" && op== || op=!=
 524     eval test "x\$${1#!}" $op "xyes"
 525 }
 526
 527 disabled(){
 528     test "${1#!}" = "$1" && op== || op=!=
 529     eval test "x\$${1#!}" $op "xno"
 530 }
 531
 532 enabled_all(){
 533     for opt; do
 534         enabled $opt || return 1
 535     done
 536 }
 537
 538 disabled_all(){
 539     for opt; do
 540         disabled $opt || return 1
 541     done
 542 }
 543
 544 enabled_any(){
 545     for opt; do
 546         enabled $opt && return 0
 547     done
 548 }
 549
 550 disabled_any(){
 551     for opt; do
 552         disabled $opt && return 0
 553     done
 554     return 1
 555 }
 556
 557 set_default(){
 558     for opt; do
 559         eval : \${$opt:=\$${opt}_default}
 560     done
 561 }
 562
 563 is_in(){
 564     value=$1
 565     shift
 566     for var in $*; do
 567         [ $var = $value ] && return 0
 568     done
 569     return 1
 570 }
 571
 572 do_check_deps(){
 573     for cfg; do
 574         cfg="${cfg#!}"
 575         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 576         disabled ${cfg}_checking && continue
 577         enable ${cfg}_checking
 578         append allopts $cfg
 579
 580         eval dep_all="\$${cfg}_deps"
 581         eval dep_any="\$${cfg}_deps_any"
 582         eval dep_sel="\$${cfg}_select"
 583         eval dep_sgs="\$${cfg}_suggest"
 584         eval dep_ifa="\$${cfg}_if"
 585         eval dep_ifn="\$${cfg}_if_any"
 586
 587         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 588         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 589         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 590
 591         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 592         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 593         enabled_all  $dep_all || disable $cfg
 594         enabled_any  $dep_any || disable $cfg
 595         disabled_any $dep_sel && disable $cfg
 596
 597         if enabled $cfg; then
 598             enable_deep $dep_sel
 599             enable_deep_weak $dep_sgs
 600         fi
 601
 602         disable ${cfg}_checking
 603     done
 604 }
 605
 606 check_deps(){
 607     unset allopts
 608
 609     do_check_deps "$@"
 610
 611     for cfg in $allopts; do
 612         enabled $cfg || continue
 613         eval dep_extralibs="\$${cfg}_extralibs"
 614         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 615     done
 616 }
 617
 618 print_config(){
 619     pfx=$1
 620     files=$2
 621     shift 2
 622     map 'eval echo "$v \${$v:-no}"' "$@" |
 623     awk "BEGIN { split(\"$files\", files) }
 624         {
 625             c = \"$pfx\" toupper(\$1);
 626             v = \$2;
 627             sub(/yes/, 1, v);
 628             sub(/no/,  0, v);
 629             for (f in files) {
 630                 file = files[f];
 631                 if (file ~ /\\.h\$/) {
 632                     printf(\"#define %s %d\\n\", c, v) >>file;
 633                 } else if (file ~ /\\.asm\$/) {
 634                     printf(\"%%define %s %d\\n\", c, v) >>file;
 635                 } else if (file ~ /\\.mak\$/) {
 636                     n = -v ? \"\" : \"!\";
 637                     printf(\"%s%s=yes\\n\", n, c) >>file;
 638                 }
 639             }
 640         }"
 641 }
 642
 643 print_enabled(){
 644     suf=$1
 645     shift
 646     for v; do
 647         enabled $v && printf "%s\n" ${v%$suf};
 648     done
 649 }
 650
 651 append(){
 652     var=$1
 653     shift
 654     eval "$var=\"\$$var $*\""
 655 }
 656
 657 prepend(){
 658     var=$1
 659     shift
 660     eval "$var=\"$* \$$var\""
 661 }
 662
 663 unique(){
 664     var=$1
 665     uniq_list=""
 666     for tok in $(eval echo \$$var); do
 667         uniq_list="$(filter_out $tok $uniq_list) $tok"
 668     done
 669     eval "$var=\"${uniq_list}\""
 670 }
 671
 672 add_cppflags(){
 673     append CPPFLAGS "$@"
 674 }
 675
 676 add_cflags(){
 677     append CFLAGS $($cflags_filter "$@")
 678 }
 679
 680 add_asflags(){
 681     append ASFLAGS $($asflags_filter "$@")
 682 }
 683
 684 add_ldflags(){
 685     append LDFLAGS $($ldflags_filter "$@")
 686 }
 687
 688 add_ldexeflags(){
 689     append LDEXEFLAGS $($ldflags_filter "$@")
 690 }
 691
 692 add_stripflags(){
 693     append STRIPFLAGS "$@"
 694 }
 695
 696 add_extralibs(){
 697     prepend extralibs $($ldflags_filter "$@")
 698 }
 699
 700 add_host_cppflags(){
 701     append host_cppflags "$@"
 702 }
 703
 704 add_host_cflags(){
 705     append host_cflags $($host_cflags_filter "$@")
 706 }
 707
 708 add_host_ldflags(){
 709     append host_ldflags $($host_ldflags_filter "$@")
 710 }
 711
 712 add_compat(){
 713     append compat_objs $1
 714     shift
 715     map 'add_cppflags -D$v' "$@"
 716 }
 717
 718 check_cmd(){
 719     log "$@"
 720     "$@" >> $logfile 2>&1
 721 }
 722
 723 cc_o(){
 724     eval printf '%s\\n' $CC_O
 725 }
 726
 727 cc_e(){
 728     eval printf '%s\\n' $CC_E
 729 }
 730
 731 check_cc(){
 732     log check_cc "$@"
 733     cat > $TMPC
 734     log_file $TMPC
 735     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 736 }
 737
 738 check_cpp(){
 739     log check_cpp "$@"
 740     cat > $TMPC
 741     log_file $TMPC
 742     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 743 }
 744
 745 as_o(){
 746     eval printf '%s\\n' $AS_O
 747 }
 748
 749 check_as(){
 750     log check_as "$@"
 751     cat > $TMPS
 752     log_file $TMPS
 753     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 754 }
 755
 756 check_inline_asm(){
 757     log check_inline_asm "$@"
 758     name="$1"
 759     code="$2"
 760     shift 2
 761     disable $name
 762     check_cc "$@" <<EOF && enable $name
 763 void foo(void){ __asm__ volatile($code); }
 764 EOF
 765 }
 766
 767 check_insn(){
 768     log check_insn "$@"
 769     check_inline_asm ${1}_inline "\"$2\""
 770     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 771 }
 772
 773 check_yasm(){
 774     log check_yasm "$@"
 775     echo "$1" > $TMPS
 776     log_file $TMPS
 777     shift 1
 778     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 779 }
 780
 781 ld_o(){
 782     eval printf '%s\\n' $LD_O
 783 }
 784
 785 check_ld(){
 786     log check_ld "$@"
 787     flags=$(filter_out '-l*' "$@")
 788     libs=$(filter '-l*' "$@")
 789     check_cc $($cflags_filter $flags) || return
 790     flags=$($ldflags_filter $flags)
 791     libs=$($ldflags_filter $libs)
 792     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 793 }
 794
 795 print_include(){
 796     hdr=$1
 797     test "${hdr%.h}" = "${hdr}" &&
 798         echo "#include $hdr"    ||
 799         echo "#include <$hdr>"
 800 }
 801
 802 check_code(){
 803     log check_code "$@"
 804     check=$1
 805     headers=$2
 806     code=$3
 807     shift 3
 808     {
 809         for hdr in $headers; do
 810             print_include $hdr
 811         done
 812         echo "int main(void) { $code; return 0; }"
 813     } | check_$check "$@"
 814 }
 815
 816 check_cppflags(){
 817     log check_cppflags "$@"
 818     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 819 int x;
 820 EOF
 821 }
 822
 823 test_cflags(){
 824     log test_cflags "$@"
 825     set -- $($cflags_filter "$@")
 826     check_cc "$@" <<EOF
 827 int x;
 828 EOF
 829 }
 830
 831 check_cflags(){
 832     log check_cflags "$@"
 833     test_cflags "$@" && add_cflags "$@"
 834 }
 835
 836 test_ldflags(){
 837     log test_ldflags "$@"
 838     check_ld "$@" <<EOF
 839 int main(void){ return 0; }
 840 EOF
 841 }
 842
 843 check_ldflags(){
 844     log check_ldflags "$@"
 845     test_ldflags "$@" && add_ldflags "$@"
 846 }
 847
 848 test_stripflags(){
 849     log test_stripflags "$@"
 850     # call check_cc to get a fresh TMPO
 851     check_cc <<EOF
 852 int main(void) { return 0; }
 853 EOF
 854     check_cmd $strip $STRIPFLAGS "$@" $TMPO
 855 }
 856
 857 check_stripflags(){
 858     log check_stripflags "$@"
 859     test_stripflags "$@" && add_stripflags "$@"
 860 }
 861
 862 check_header(){
 863     log check_header "$@"
 864     header=$1
 865     shift
 866     disable_safe $header
 867     check_cpp "$@" <<EOF && enable_safe $header
 868 #include <$header>
 869 int x;
 870 EOF
 871 }
 872
 873 check_func(){
 874     log check_func "$@"
 875     func=$1
 876     shift
 877     disable $func
 878     check_ld "$@" <<EOF && enable $func
 879 extern int $func();
 880 int main(void){ $func(); }
 881 EOF
 882 }
 883
 884 check_mathfunc(){
 885     log check_mathfunc "$@"
 886     func=$1
 887     narg=$2
 888     shift 2
 889     test $narg = 2 && args="f, g" || args="f"
 890     disable $func
 891     check_ld "$@" <<EOF && enable $func
 892 #include <math.h>
 893 float foo(float f, float g) { return $func($args); }
 894 int main(void){ return 0; }
 895 EOF
 896 }
 897
 898 check_func_headers(){
 899     log check_func_headers "$@"
 900     headers=$1
 901     funcs=$2
 902     shift 2
 903     {
 904         for hdr in $headers; do
 905             print_include $hdr
 906         done
 907         for func in $funcs; do
 908             echo "long check_$func(void) { return (long) $func; }"
 909         done
 910         echo "int main(void) { return 0; }"
 911     } | check_ld "$@" && enable $funcs && enable_safe $headers
 912 }
 913
 914 check_cpp_condition(){
 915     log check_cpp_condition "$@"
 916     header=$1
 917     condition=$2
 918     shift 2
 919     check_cpp "$@" <<EOF
 920 #include <$header>
 921 #if !($condition)
 922 #error "unsatisfied condition: $condition"
 923 #endif
 924 EOF
 925 }
 926
 927 check_lib(){
 928     log check_lib "$@"
 929     header="$1"
 930     func="$2"
 931     shift 2
 932     check_header $header && check_func $func "$@" && add_extralibs "$@"
 933 }
 934
 935 check_lib2(){
 936     log check_lib2 "$@"
 937     headers="$1"
 938     funcs="$2"
 939     shift 2
 940     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 941 }
 942
 943 check_pkg_config(){
 944     log check_pkg_config "$@"
 945     pkg="$1"
 946     headers="$2"
 947     funcs="$3"
 948     shift 3
 949     check_cmd $pkg_config --exists --print-errors $pkg || return
 950     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
 951     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
 952     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 953         set_safe ${pkg}_cflags $pkg_cflags   &&
 954         set_safe ${pkg}_libs   $pkg_libs
 955 }
 956
 957 check_exec(){
 958     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 959 }
 960
 961 check_exec_crash(){
 962     code=$(cat)
 963
 964     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 965     # are safe but may not be available everywhere.  Thus we use
 966     # raise(SIGTERM) instead.  The check is run in a subshell so we
 967     # can redirect the "Terminated" message from the shell.  SIGBUS
 968     # is not defined by standard C so it is used conditionally.
 969
 970     (check_exec "$@") >> $logfile 2>&1 <<EOF
 971 #include <signal.h>
 972 static void sighandler(int sig){
 973     raise(SIGTERM);
 974 }
 975 int foo(void){
 976     $code
 977 }
 978 int (*func_ptr)(void) = foo;
 979 int main(void){
 980     signal(SIGILL, sighandler);
 981     signal(SIGFPE, sighandler);
 982     signal(SIGSEGV, sighandler);
 983 #ifdef SIGBUS
 984     signal(SIGBUS, sighandler);
 985 #endif
 986     return func_ptr();
 987 }
 988 EOF
 989 }
 990
 991 check_type(){
 992     log check_type "$@"
 993     headers=$1
 994     type=$2
 995     shift 2
 996     disable_safe "$type"
 997     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
 998 }
 999
1000 check_struct(){
1001     log check_struct "$@"
1002     headers=$1
1003     struct=$2
1004     member=$3
1005     shift 3
1006     disable_safe "${struct}_${member}"
1007     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1008         enable_safe "${struct}_${member}"
1009 }
1010
1011 check_builtin(){
1012     log check_builtin "$@"
1013     name=$1
1014     headers=$2
1015     builtin=$3
1016     shift 3
1017     disable "$name"
1018     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1019 }
1020
1021 check_compile_assert(){
1022     log check_compile_assert "$@"
1023     name=$1
1024     headers=$2
1025     condition=$3
1026     shift 3
1027     disable "$name"
1028     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1029 }
1030
1031 require(){
1032     name="$1"
1033     header="$2"
1034     func="$3"
1035     shift 3
1036     check_lib $header $func "$@" || die "ERROR: $name not found"
1037 }
1038
1039 require2(){
1040     name="$1"
1041     headers="$2"
1042     func="$3"
1043     shift 3
1044     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1045 }
1046
1047 require_pkg_config(){
1048     pkg="$1"
1049     check_pkg_config "$@" || die "ERROR: $pkg not found"
1050     add_cflags    $(get_safe ${pkg}_cflags)
1051     add_extralibs $(get_safe ${pkg}_libs)
1052 }
1053
1054 hostcc_e(){
1055     eval printf '%s\\n' $HOSTCC_E
1056 }
1057
1058 hostcc_o(){
1059     eval printf '%s\\n' $HOSTCC_O
1060 }
1061
1062 check_host_cc(){
1063     log check_host_cc "$@"
1064     cat > $TMPC
1065     log_file $TMPC
1066     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1067 }
1068
1069 check_host_cpp(){
1070     log check_host_cpp "$@"
1071     cat > $TMPC
1072     log_file $TMPC
1073     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1074 }
1075
1076 check_host_cppflags(){
1077     log check_host_cppflags "$@"
1078     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1079 int x;
1080 EOF
1081 }
1082
1083 check_host_cflags(){
1084     log check_host_cflags "$@"
1085     set -- $($host_cflags_filter "$@")
1086     check_host_cc "$@" <<EOF && append host_cflags "$@"
1087 int x;
1088 EOF
1089 }
1090
1091 check_host_cpp_condition(){
1092     log check_host_cpp_condition "$@"
1093     header=$1
1094     condition=$2
1095     shift 2
1096     check_host_cpp "$@" <<EOF
1097 #include <$header>
1098 #if !($condition)
1099 #error "unsatisfied condition: $condition"
1100 #endif
1101 EOF
1102 }
1103
1104 apply(){
1105     file=$1
1106     shift
1107     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1108 }
1109
1110 cp_if_changed(){
1111     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1112     mkdir -p "$(dirname $2)"
1113     $cp_f "$1" "$2"
1114 }
1115
1116 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1117 # system-dependent things.
1118
1119 COMPONENT_LIST="
1120     bsfs
1121     decoders
1122     demuxers
1123     encoders
1124     filters
1125     hwaccels
1126     indevs
1127     muxers
1128     outdevs
1129     parsers
1130     protocols
1131 "
1132
1133 EXAMPLE_LIST="
1134     avcodec_example
1135     filter_audio_example
1136     metadata_example
1137     output_example
1138     transcode_aac_example
1139 "
1140
1141 EXTERNAL_LIBRARY_LIST="
1142     avisynth
1143     bzlib
1144     frei0r
1145     gnutls
1146     libbs2b
1147     libcdio
1148     libdc1394
1149     libfaac
1150     libfdk_aac
1151     libfontconfig
1152     libfreetype
1153     libgsm
1154     libilbc
1155     libmp3lame
1156     libopencore_amrnb
1157     libopencore_amrwb
1158     libopencv
1159     libopenjpeg
1160     libopus
1161     libpulse
1162     librtmp
1163     libschroedinger
1164     libspeex
1165     libtheora
1166     libtwolame
1167     libvo_aacenc
1168     libvo_amrwbenc
1169     libvorbis
1170     libvpx
1171     libwavpack
1172     libwebp
1173     libx264
1174     libx265
1175     libxavs
1176     libxcb
1177     libxcb_shm
1178     libxcb_xfixes
1179     libxvid
1180     openssl
1181     x11grab
1182     zlib
1183 "
1184
1185 FEATURE_LIST="
1186     gray
1187     hardcoded_tables
1188     runtime_cpudetect
1189     safe_bitstream_reader
1190     shared
1191     small
1192     sram
1193     static
1194     swscale_alpha
1195 "
1196
1197 HWACCEL_LIST="
1198     dxva2
1199     vaapi
1200     vda
1201     vdpau
1202 "
1203
1204 LIBRARY_LIST="
1205     avcodec
1206     avdevice
1207     avfilter
1208     avformat
1209     avresample
1210     avutil
1211     swscale
1212 "
1213
1214 LICENSE_LIST="
1215     gpl
1216     nonfree
1217     version3
1218 "
1219
1220 PROGRAM_LIST="
1221     avconv
1222     avplay
1223     avprobe
1224 "
1225
1226 SUBSYSTEM_LIST="
1227     dct
1228     doc
1229     error_resilience
1230     faan
1231     fft
1232     lsp
1233     lzo
1234     mdct
1235     network
1236     rdft
1237 "
1238
1239 CONFIG_LIST="
1240     $COMPONENT_LIST
1241     $EXAMPLE_LIST
1242     $EXTERNAL_LIBRARY_LIST
1243     $FEATURE_LIST
1244     $HWACCEL_LIST
1245     $LICENSE_LIST
1246     $LIBRARY_LIST
1247     $PROGRAM_LIST
1248     $SUBSYSTEM_LIST
1249     memalign_hack
1250     neon_clobber_test
1251     pic
1252     pod2man
1253     texi2html
1254     thumb
1255     xmm_clobber_test
1256 "
1257
1258 THREADS_LIST="
1259     pthreads
1260     w32threads
1261 "
1262
1263 ATOMICS_LIST="
1264     atomics_gcc
1265     atomics_suncc
1266     atomics_win32
1267 "
1268
1269 ARCH_LIST="
1270     aarch64
1271     alpha
1272     arm
1273     avr32
1274     avr32_ap
1275     avr32_uc
1276     bfin
1277     ia64
1278     m68k
1279     mips
1280     mips64
1281     parisc
1282     ppc
1283     ppc64
1284     s390
1285     sh4
1286     sparc
1287     sparc64
1288     tilegx
1289     tilepro
1290     tomi
1291     x86
1292     x86_32
1293     x86_64
1294 "
1295
1296 ARCH_EXT_LIST_ARM="
1297     armv5te
1298     armv6
1299     armv6t2
1300     armv8
1301     neon
1302     vfp
1303     vfpv3
1304 "
1305
1306 ARCH_EXT_LIST_X86_SIMD="
1307     amd3dnow
1308     amd3dnowext
1309     avx
1310     avx2
1311     fma3
1312     fma4
1313     mmx
1314     mmxext
1315     sse
1316     sse2
1317     sse3
1318     sse4
1319     sse42
1320     ssse3
1321     xop
1322 "
1323
1324 ARCH_EXT_LIST_PPC="
1325     altivec
1326     dcbzl
1327     ldbrx
1328     ppc4xx
1329 "
1330
1331 ARCH_EXT_LIST_X86="
1332     $ARCH_EXT_LIST_X86_SIMD
1333     cpunop
1334     i686
1335 "
1336
1337 ARCH_EXT_LIST="
1338     $ARCH_EXT_LIST_ARM
1339     $ARCH_EXT_LIST_PPC
1340     $ARCH_EXT_LIST_X86
1341     loongson
1342     vis
1343 "
1344
1345 ARCH_FEATURES="
1346     aligned_stack
1347     fast_64bit
1348     fast_clz
1349     fast_cmov
1350     local_aligned_8
1351     local_aligned_16
1352     simd_align_16
1353 "
1354
1355 BUILTIN_LIST="
1356     atomic_cas_ptr
1357     machine_rw_barrier
1358     MemoryBarrier
1359     mm_empty
1360     rdtsc
1361     sync_val_compare_and_swap
1362 "
1363 HAVE_LIST_CMDLINE="
1364     inline_asm
1365     symver
1366     yasm
1367 "
1368
1369 HAVE_LIST_PUB="
1370     bigendian
1371     fast_unaligned
1372 "
1373
1374 HEADERS_LIST="
1375     alsa_asoundlib_h
1376     altivec_h
1377     arpa_inet_h
1378     cdio_paranoia_h
1379     cdio_paranoia_paranoia_h
1380     dev_bktr_ioctl_bt848_h
1381     dev_bktr_ioctl_meteor_h
1382     dev_ic_bt8xx_h
1383     dev_video_bktr_ioctl_bt848_h
1384     dev_video_meteor_ioctl_meteor_h
1385     direct_h
1386     dlfcn_h
1387     dxva_h
1388     gsm_h
1389     io_h
1390     mach_mach_time_h
1391     machine_ioctl_bt848_h
1392     machine_ioctl_meteor_h
1393     malloc_h
1394     poll_h
1395     sndio_h
1396     soundcard_h
1397     sys_mman_h
1398     sys_param_h
1399     sys_resource_h
1400     sys_select_h
1401     sys_soundcard_h
1402     sys_time_h
1403     sys_un_h
1404     sys_videoio_h
1405     unistd_h
1406     windows_h
1407     winsock2_h
1408 "
1409
1410 INTRINSICS_LIST="
1411     intrinsics_neon
1412 "
1413
1414 MATH_FUNCS="
1415     atanf
1416     atan2f
1417     cbrtf
1418     cosf
1419     exp2
1420     exp2f
1421     expf
1422     isinf
1423     isnan
1424     ldexpf
1425     llrint
1426     llrintf
1427     log2
1428     log2f
1429     log10f
1430     lrint
1431     lrintf
1432     powf
1433     rint
1434     round
1435     roundf
1436     sinf
1437     trunc
1438     truncf
1439 "
1440
1441 SYSTEM_FUNCS="
1442     aligned_malloc
1443     clock_gettime
1444     closesocket
1445     CommandLineToArgvW
1446     CoTaskMemFree
1447     CryptGenRandom
1448     dlopen
1449     fcntl
1450     flt_lim
1451     fork
1452     getaddrinfo
1453     gethrtime
1454     getopt
1455     GetProcessAffinityMask
1456     GetProcessMemoryInfo
1457     GetProcessTimes
1458     getrusage
1459     getservbyport
1460     GetSystemTimeAsFileTime
1461     gettimeofday
1462     gmtime_r
1463     inet_aton
1464     isatty
1465     jack_port_get_latency_range
1466     localtime_r
1467     mach_absolute_time
1468     MapViewOfFile
1469     memalign
1470     mkstemp
1471     mmap
1472     mprotect
1473     nanosleep
1474     posix_memalign
1475     sched_getaffinity
1476     SetConsoleTextAttribute
1477     setmode
1478     setrlimit
1479     Sleep
1480     strerror_r
1481     strptime
1482     sysconf
1483     sysctl
1484     usleep
1485     VirtualAlloc
1486 "
1487
1488 TOOLCHAIN_FEATURES="
1489     as_dn_directive
1490     as_func
1491     asm_mod_q
1492     attribute_may_alias
1493     attribute_packed
1494     ebp_available
1495     ebx_available
1496     gnu_as
1497     ibm_asm
1498     inline_asm_labels
1499     pragma_deprecated
1500     symver_asm_label
1501     symver_gnu_asm
1502     vfp_args
1503     xform_asm
1504     xmm_clobbers
1505 "
1506
1507 TYPES_LIST="
1508     CONDITION_VARIABLE_Ptr
1509     socklen_t
1510     struct_addrinfo
1511     struct_group_source_req
1512     struct_ip_mreq_source
1513     struct_ipv6_mreq
1514     struct_pollfd
1515     struct_rusage_ru_maxrss
1516     struct_sockaddr_in6
1517     struct_sockaddr_sa_len
1518     struct_sockaddr_storage
1519     struct_v4l2_frmivalenum_discrete
1520 "
1521
1522 HAVE_LIST="
1523     $ARCH_EXT_LIST
1524     $(add_suffix _external $ARCH_EXT_LIST)
1525     $(add_suffix _inline   $ARCH_EXT_LIST)
1526     $ARCH_FEATURES
1527     $ATOMICS_LIST
1528     $BUILTIN_LIST
1529     $HAVE_LIST_CMDLINE
1530     $HAVE_LIST_PUB
1531     $HEADERS_LIST
1532     $INTRINSICS_LIST
1533     $MATH_FUNCS
1534     $SYSTEM_FUNCS
1535     $THREADS_LIST
1536     $TOOLCHAIN_FEATURES
1537     $TYPES_LIST
1538     atomics_native
1539     dos_paths
1540     dxva2_lib
1541     libc_msvcrt
1542     libdc1394_1
1543     libdc1394_2
1544     sdl
1545     section_data_rel_ro
1546     threads
1547     vdpau_x11
1548     xlib
1549 "
1550
1551 # options emitted with CONFIG_ prefix but not available on the command line
1552 CONFIG_EXTRA="
1553     aandcttables
1554     ac3dsp
1555     audio_frame_queue
1556     audiodsp
1557     blockdsp
1558     bswapdsp
1559     cabac
1560     dvprofile
1561     faandct
1562     faanidct
1563     fdctdsp
1564     gcrypt
1565     golomb
1566     gplv3
1567     h263dsp
1568     h264chroma
1569     h264dsp
1570     h264pred
1571     h264qpel
1572     hpeldsp
1573     huffman
1574     huffyuvdsp
1575     huffyuvencdsp
1576     idctdsp
1577     iirfilter
1578     intrax8
1579     lgplv3
1580     lpc
1581     me_cmp
1582     mpeg_er
1583     mpegaudio
1584     mpegaudiodsp
1585     mpegvideo
1586     mpegvideoenc
1587     nettle
1588     pixblockdsp
1589     qpeldsp
1590     rangecoder
1591     riffdec
1592     riffenc
1593     rtpdec
1594     rtpenc_chain
1595     sinewin
1596     startcode
1597     tpeldsp
1598     videodsp
1599     vp3dsp
1600     wma_freqs
1601 "
1602
1603 CMDLINE_SELECT="
1604     $ARCH_EXT_LIST
1605     $CONFIG_LIST
1606     $HAVE_LIST_CMDLINE
1607     $THREADS_LIST
1608     asm
1609     cross_compile
1610     debug
1611     extra_warnings
1612     logging
1613     lto
1614     optimizations
1615     rpath
1616 "
1617
1618 PATHS_LIST="
1619     bindir
1620     datadir
1621     docdir
1622     incdir
1623     libdir
1624     mandir
1625     prefix
1626     shlibdir
1627 "
1628
1629 CMDLINE_SET="
1630     $PATHS_LIST
1631     ar
1632     arch
1633     as
1634     build_suffix
1635     cc
1636     cpu
1637     cross_prefix
1638     dep_cc
1639     extra_version
1640     host_cc
1641     host_cflags
1642     host_ld
1643     host_ldflags
1644     host_libs
1645     host_os
1646     ld
1647     logfile
1648     malloc_prefix
1649     nm
1650     optflags
1651     pkg_config
1652     pkg_config_flags
1653     random_seed
1654     samples
1655     sysinclude
1656     sysroot
1657     target_exec
1658     target_os
1659     target_path
1660     target_samples
1661     toolchain
1662 "
1663
1664 CMDLINE_APPEND="
1665     extra_cflags
1666     host_cppflags
1667 "
1668
1669 # code dependency declarations
1670
1671 # architecture extensions
1672
1673 armv5te_deps="arm"
1674 armv6_deps="arm"
1675 armv6t2_deps="arm"
1676 armv8_deps="aarch64"
1677 neon_deps_any="aarch64 arm"
1678 intrinsics_neon_deps="neon"
1679 vfp_deps_any="aarch64 arm"
1680 vfpv3_deps="vfp"
1681
1682 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1683
1684 altivec_deps="ppc"
1685 ppc4xx_deps="ppc"
1686
1687 cpunop_deps="i686"
1688 x86_64_select="i686"
1689 x86_64_suggest="fast_cmov"
1690
1691 amd3dnow_deps="mmx"
1692 amd3dnowext_deps="amd3dnow"
1693 i686_deps="x86"
1694 mmx_deps="x86"
1695 mmxext_deps="mmx"
1696 sse_deps="mmxext"
1697 sse2_deps="sse"
1698 sse3_deps="sse2"
1699 ssse3_deps="sse3"
1700 sse4_deps="ssse3"
1701 sse42_deps="sse4"
1702 avx_deps="sse42"
1703 xop_deps="avx"
1704 fma3_deps="avx"
1705 fma4_deps="avx"
1706 avx2_deps="avx"
1707
1708 mmx_external_deps="yasm"
1709 mmx_inline_deps="inline_asm"
1710 mmx_suggest="mmx_external mmx_inline"
1711
1712 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1713     eval dep=\$${ext}_deps
1714     eval ${ext}_external_deps='"${dep}_external"'
1715     eval ${ext}_inline_deps='"${dep}_inline"'
1716     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1717 done
1718
1719 aligned_stack_if_any="aarch64 ppc x86"
1720 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1721 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1722 fast_unaligned_if_any="aarch64 ppc x86"
1723 simd_align_16_if_any="altivec neon sse"
1724
1725 # system capabilities
1726 log2_deps="!libc_msvcrt"
1727
1728 symver_if_any="symver_asm_label symver_gnu_asm"
1729
1730 # threading support
1731 atomics_gcc_if="sync_val_compare_and_swap"
1732 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1733 atomics_win32_if="MemoryBarrier"
1734 atomics_native_if_any="$ATOMICS_LIST"
1735 w32threads_deps="atomics_native"
1736 threads_if_any="$THREADS_LIST"
1737
1738 # subsystems
1739 dct_select="rdft"
1740 error_resilience_select="me_cmp"
1741 faandct_deps="faan fdctdsp"
1742 faanidct_deps="faan idctdsp"
1743 intrax8_select="error_resilience"
1744 mdct_select="fft"
1745 rdft_select="fft"
1746 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1747 mpeg_er_select="error_resilience"
1748 mpegaudio_select="mpegaudiodsp"
1749 mpegaudiodsp_select="dct"
1750 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1751 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1752
1753 # decoders / encoders
1754 aac_decoder_select="mdct sinewin"
1755 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1756 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1757 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
1758 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1759 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1760 aic_decoder_select="golomb idctdsp"
1761 alac_encoder_select="lpc"
1762 als_decoder_select="bswapdsp"
1763 amrnb_decoder_select="lsp"
1764 amrwb_decoder_select="lsp"
1765 amv_decoder_select="sp5x_decoder"
1766 ape_decoder_select="bswapdsp"
1767 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1768 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1769 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1770 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1771 atrac1_decoder_select="mdct sinewin"
1772 atrac3_decoder_select="mdct"
1773 atrac3p_decoder_select="mdct sinewin"
1774 bink_decoder_select="blockdsp hpeldsp"
1775 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1776 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1777 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1778 cllc_decoder_select="bswapdsp"
1779 comfortnoise_encoder_select="lpc"
1780 cook_decoder_select="audiodsp mdct sinewin"
1781 cscd_decoder_select="lzo"
1782 cscd_decoder_suggest="zlib"
1783 dca_decoder_select="mdct"
1784 dnxhd_decoder_select="blockdsp idctdsp"
1785 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1786 dvvideo_decoder_select="dvprofile idctdsp"
1787 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1788 dxa_decoder_deps="zlib"
1789 eac3_decoder_select="ac3_decoder"
1790 eac3_encoder_select="ac3_encoder"
1791 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1792 eatgq_decoder_select="aandcttables idctdsp"
1793 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1794 exr_decoder_deps="zlib"
1795 ffv1_decoder_select="golomb rangecoder"
1796 ffv1_encoder_select="rangecoder"
1797 ffvhuff_decoder_select="huffyuv_decoder"
1798 ffvhuff_encoder_select="huffyuv_encoder"
1799 fic_decoder_select="golomb"
1800 flac_decoder_select="golomb"
1801 flac_encoder_select="bswapdsp golomb lpc"
1802 flashsv_decoder_deps="zlib"
1803 flashsv_encoder_deps="zlib"
1804 flashsv2_decoder_deps="zlib"
1805 flv_decoder_select="h263_decoder"
1806 flv_encoder_select="h263_encoder"
1807 fourxm_decoder_select="blockdsp bswapdsp"
1808 fraps_decoder_select="bswapdsp huffman"
1809 g2m_decoder_deps="zlib"
1810 g2m_decoder_select="blockdsp idctdsp"
1811 h261_decoder_select="mpeg_er mpegvideo"
1812 h261_encoder_select="aandcttables mpegvideoenc"
1813 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1814 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1815 h263i_decoder_select="h263_decoder"
1816 h263p_encoder_select="h263_encoder"
1817 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1818 h264_decoder_suggest="error_resilience"
1819 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1820 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1821 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1822 iac_decoder_select="imc_decoder"
1823 imc_decoder_select="bswapdsp fft mdct sinewin"
1824 indeo3_decoder_select="hpeldsp"
1825 interplay_video_decoder_select="hpeldsp"
1826 jpegls_decoder_select="golomb mjpeg_decoder"
1827 jpegls_encoder_select="golomb"
1828 jv_decoder_select="blockdsp"
1829 lagarith_decoder_select="huffyuvdsp"
1830 ljpeg_encoder_select="aandcttables idctdsp"
1831 loco_decoder_select="golomb"
1832 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1833 metasound_decoder_select="lsp mdct sinewin"
1834 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1835 mjpeg_decoder_select="blockdsp hpeldsp idctdsp"
1836 mjpeg_encoder_select="aandcttables mpegvideoenc"
1837 mjpegb_decoder_select="mjpeg_decoder"
1838 mlp_decoder_select="mlp_parser"
1839 motionpixels_decoder_select="bswapdsp"
1840 mp1_decoder_select="mpegaudio"
1841 mp1float_decoder_select="mpegaudio"
1842 mp2_decoder_select="mpegaudio"
1843 mp2float_decoder_select="mpegaudio"
1844 mp3_decoder_select="mpegaudio"
1845 mp3adu_decoder_select="mpegaudio"
1846 mp3adufloat_decoder_select="mpegaudio"
1847 mp3float_decoder_select="mpegaudio"
1848 mp3on4_decoder_select="mpegaudio"
1849 mp3on4float_decoder_select="mpegaudio"
1850 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1851 mpc8_decoder_select="mpegaudiodsp"
1852 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1853 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1854 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1855 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1856 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1857 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1858 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1859 mpeg4_encoder_select="h263_encoder"
1860 msmpeg4v1_decoder_select="h263_decoder"
1861 msmpeg4v2_decoder_select="h263_decoder"
1862 msmpeg4v2_encoder_select="h263_encoder"
1863 msmpeg4v3_decoder_select="h263_decoder"
1864 msmpeg4v3_encoder_select="h263_encoder"
1865 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1866 mxpeg_decoder_select="mjpeg_decoder"
1867 nellymoser_decoder_select="mdct sinewin"
1868 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1869 nuv_decoder_select="idctdsp lzo"
1870 on2avc_decoder_select="mdct"
1871 opus_decoder_deps="avresample"
1872 png_decoder_deps="zlib"
1873 png_encoder_deps="zlib"
1874 png_encoder_select="huffyuvencdsp"
1875 prores_decoder_select="idctdsp"
1876 prores_encoder_select="fdctdsp"
1877 qcelp_decoder_select="lsp"
1878 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1879 ra_144_encoder_select="audio_frame_queue lpc"
1880 ralf_decoder_select="golomb"
1881 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1882 rv10_encoder_select="h263_encoder"
1883 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1884 rv20_encoder_select="h263_encoder"
1885 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1886 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1887 shorten_decoder_select="golomb"
1888 sipr_decoder_select="lsp"
1889 sp5x_decoder_select="mjpeg_decoder"
1890 svq1_decoder_select="hpeldsp"
1891 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1892 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1893 svq3_decoder_suggest="zlib"
1894 tak_decoder_select="audiodsp"
1895 theora_decoder_select="vp3_decoder"
1896 thp_decoder_select="mjpeg_decoder"
1897 tiff_decoder_suggest="zlib"
1898 tiff_encoder_suggest="zlib"
1899 truehd_decoder_select="mlp_decoder"
1900 truemotion2_decoder_select="bswapdsp"
1901 truespeech_decoder_select="bswapdsp"
1902 tscc_decoder_deps="zlib"
1903 twinvq_decoder_select="mdct lsp sinewin"
1904 utvideo_decoder_select="bswapdsp"
1905 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1906 vble_decoder_select="huffyuvdsp"
1907 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1908 vc1image_decoder_select="vc1_decoder"
1909 vorbis_decoder_select="mdct"
1910 vorbis_encoder_select="mdct"
1911 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1912 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1913 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1914 vp6a_decoder_select="vp6_decoder"
1915 vp6f_decoder_select="vp6_decoder"
1916 vp7_decoder_select="h264pred videodsp"
1917 vp8_decoder_select="h264pred videodsp"
1918 vp9_decoder_select="videodsp"
1919 webp_decoder_select="vp8_decoder"
1920 wmapro_decoder_select="mdct sinewin wma_freqs"
1921 wmav1_decoder_select="mdct sinewin wma_freqs"
1922 wmav1_encoder_select="mdct sinewin wma_freqs"
1923 wmav2_decoder_select="mdct sinewin wma_freqs"
1924 wmav2_encoder_select="mdct sinewin wma_freqs"
1925 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1926 wmv1_decoder_select="h263_decoder"
1927 wmv1_encoder_select="h263_encoder"
1928 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
1929 wmv2_encoder_select="h263_encoder"
1930 wmv3_decoder_select="vc1_decoder"
1931 wmv3image_decoder_select="wmv3_decoder"
1932 zerocodec_decoder_deps="zlib"
1933 zlib_decoder_deps="zlib"
1934 zlib_encoder_deps="zlib"
1935 zmbv_decoder_deps="zlib"
1936 zmbv_encoder_deps="zlib"
1937
1938 # hardware accelerators
1939 dxva2_deps="dxva2api_h"
1940 vaapi_deps="va_va_h"
1941 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1942 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1943 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1944
1945 h263_vaapi_hwaccel_deps="vaapi"
1946 h263_vaapi_hwaccel_select="h263_decoder"
1947 h263_vdpau_hwaccel_deps="vdpau"
1948 h263_vdpau_hwaccel_select="h263_decoder"
1949 h264_dxva2_hwaccel_deps="dxva2"
1950 h264_dxva2_hwaccel_select="h264_decoder"
1951 h264_vaapi_hwaccel_deps="vaapi"
1952 h264_vaapi_hwaccel_select="h264_decoder"
1953 h264_vda_hwaccel_deps="vda"
1954 h264_vda_hwaccel_select="h264_decoder"
1955 h264_vda_old_hwaccel_deps="vda"
1956 h264_vda_old_hwaccel_select="h264_decoder"
1957 h264_vdpau_hwaccel_deps="vdpau"
1958 h264_vdpau_hwaccel_select="h264_decoder"
1959 mpeg1_vdpau_hwaccel_deps="vdpau"
1960 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1961 mpeg2_dxva2_hwaccel_deps="dxva2"
1962 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1963 mpeg2_vaapi_hwaccel_deps="vaapi"
1964 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1965 mpeg2_vdpau_hwaccel_deps="vdpau"
1966 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1967 mpeg4_vaapi_hwaccel_deps="vaapi"
1968 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1969 mpeg4_vdpau_hwaccel_deps="vdpau"
1970 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1971 vc1_dxva2_hwaccel_deps="dxva2"
1972 vc1_dxva2_hwaccel_select="vc1_decoder"
1973 vc1_vaapi_hwaccel_deps="vaapi"
1974 vc1_vaapi_hwaccel_select="vc1_decoder"
1975 vc1_vdpau_hwaccel_deps="vdpau"
1976 vc1_vdpau_hwaccel_select="vc1_decoder"
1977 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1978 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1979 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1980
1981 # parsers
1982 h264_parser_select="h264_decoder"
1983 mpegvideo_parser_select="mpegvideo"
1984 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
1985 vc1_parser_select="mpegvideo startcode"
1986
1987 # external libraries
1988 libfaac_encoder_deps="libfaac"
1989 libfaac_encoder_select="audio_frame_queue"
1990 libfdk_aac_decoder_deps="libfdk_aac"
1991 libfdk_aac_encoder_deps="libfdk_aac"
1992 libfdk_aac_encoder_select="audio_frame_queue"
1993 libgsm_decoder_deps="libgsm"
1994 libgsm_encoder_deps="libgsm"
1995 libgsm_ms_decoder_deps="libgsm"
1996 libgsm_ms_encoder_deps="libgsm"
1997 libilbc_decoder_deps="libilbc"
1998 libilbc_encoder_deps="libilbc"
1999 libmp3lame_encoder_deps="libmp3lame"
2000 libmp3lame_encoder_select="audio_frame_queue"
2001 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2002 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2003 libopencore_amrnb_encoder_select="audio_frame_queue"
2004 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2005 libopenjpeg_decoder_deps="libopenjpeg"
2006 libopenjpeg_encoder_deps="libopenjpeg"
2007 libopus_decoder_deps="libopus"
2008 libopus_encoder_deps="libopus"
2009 libopus_encoder_select="audio_frame_queue"
2010 libschroedinger_decoder_deps="libschroedinger"
2011 libschroedinger_encoder_deps="libschroedinger"
2012 libspeex_decoder_deps="libspeex"
2013 libspeex_encoder_deps="libspeex"
2014 libspeex_encoder_select="audio_frame_queue"
2015 libtheora_encoder_deps="libtheora"
2016 libtwolame_encoder_deps="libtwolame"
2017 libvo_aacenc_encoder_deps="libvo_aacenc"
2018 libvo_aacenc_encoder_select="audio_frame_queue"
2019 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2020 libvorbis_encoder_deps="libvorbis"
2021 libvorbis_encoder_select="audio_frame_queue"
2022 libvpx_vp8_decoder_deps="libvpx"
2023 libvpx_vp8_encoder_deps="libvpx"
2024 libvpx_vp9_decoder_deps="libvpx"
2025 libvpx_vp9_encoder_deps="libvpx"
2026 libwavpack_encoder_deps="libwavpack"
2027 libwebp_encoder_deps="libwebp"
2028 libx264_encoder_deps="libx264"
2029 libx265_encoder_deps="libx265"
2030 libxavs_encoder_deps="libxavs"
2031 libxvid_encoder_deps="libxvid"
2032
2033 # demuxers / muxers
2034 ac3_demuxer_select="ac3_parser"
2035 asf_demuxer_select="riffdec"
2036 asf_muxer_select="riffenc"
2037 asf_stream_muxer_select="asf_muxer"
2038 avi_demuxer_select="riffdec"
2039 avi_muxer_select="riffenc"
2040 avisynth_demuxer_deps="avisynth"
2041 avisynth_demuxer_select="riffdec"
2042 caf_demuxer_select="riffdec"
2043 dash_muxer_select="mp4_muxer"
2044 dirac_demuxer_select="dirac_parser"
2045 dv_demuxer_select="dvprofile"
2046 dv_muxer_select="dvprofile"
2047 dxa_demuxer_select="riffdec"
2048 eac3_demuxer_select="ac3_parser"
2049 f4v_muxer_select="mov_muxer"
2050 flac_demuxer_select="flac_parser"
2051 hds_muxer_select="flv_muxer"
2052 hls_muxer_select="mpegts_muxer"
2053 ipod_muxer_select="mov_muxer"
2054 ismv_muxer_select="mov_muxer"
2055 matroska_audio_muxer_select="matroska_muxer"
2056 matroska_demuxer_select="riffdec"
2057 matroska_demuxer_suggest="bzlib lzo zlib"
2058 matroska_muxer_select="riffenc"
2059 mmf_muxer_select="riffenc"
2060 mov_demuxer_select="riffdec"
2061 mov_demuxer_suggest="zlib"
2062 mov_muxer_select="riffenc rtpenc_chain"
2063 mp3_demuxer_select="mpegaudio_parser"
2064 mp4_muxer_select="mov_muxer"
2065 mpegts_muxer_select="adts_muxer latm_muxer"
2066 mpegtsraw_demuxer_select="mpegts_demuxer"
2067 mxf_d10_muxer_select="mxf_muxer"
2068 nut_muxer_select="riffenc"
2069 nuv_demuxer_select="riffdec"
2070 oga_muxer_select="ogg_muxer"
2071 ogg_demuxer_select="golomb"
2072 opus_muxer_select="ogg_muxer"
2073 psp_muxer_select="mov_muxer"
2074 rtp_demuxer_select="sdp_demuxer"
2075 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2076 rtsp_demuxer_select="http_protocol rtpdec"
2077 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2078 sap_demuxer_select="sdp_demuxer"
2079 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2080 sdp_demuxer_select="rtpdec"
2081 smoothstreaming_muxer_select="ismv_muxer"
2082 spdif_muxer_select="aac_parser"
2083 spx_muxer_select="ogg_muxer"
2084 tak_demuxer_select="tak_parser"
2085 tg2_muxer_select="mov_muxer"
2086 tgp_muxer_select="mov_muxer"
2087 w64_demuxer_select="wav_demuxer"
2088 wav_demuxer_select="riffdec"
2089 wav_muxer_select="riffenc"
2090 webm_muxer_select="riffenc"
2091 wtv_demuxer_select="riffdec"
2092 xmv_demuxer_select="riffdec"
2093 xwma_demuxer_select="riffdec"
2094
2095 # indevs / outdevs
2096 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2097 alsa_outdev_deps="alsa_asoundlib_h"
2098 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2099 dv1394_indev_deps="dv1394"
2100 dv1394_indev_select="dv_demuxer"
2101 fbdev_indev_deps="linux_fb_h"
2102 jack_indev_deps="jack_jack_h pthreads"
2103 libcdio_indev_deps="libcdio"
2104 libdc1394_indev_deps="libdc1394"
2105 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2106 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2107 pulse_indev_deps="libpulse"
2108 sndio_indev_deps="sndio_h"
2109 sndio_outdev_deps="sndio_h"
2110 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2111 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2112 vfwcap_indev_extralibs="-lavicap32"
2113 x11grab_indev_deps="x11grab"
2114 x11grab_xcb_indev_deps="libxcb"
2115
2116 # protocols
2117 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2118 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2119 ffrtmpcrypt_protocol_select="tcp_protocol"
2120 ffrtmphttp_protocol_deps="!librtmp_protocol"
2121 ffrtmphttp_protocol_select="http_protocol"
2122 gopher_protocol_select="network"
2123 http_protocol_select="tcp_protocol"
2124 httpproxy_protocol_select="tcp_protocol"
2125 https_protocol_select="tls_protocol"
2126 icecast_protocol_select="http_protocol"
2127 librtmp_protocol_deps="librtmp"
2128 librtmpe_protocol_deps="librtmp"
2129 librtmps_protocol_deps="librtmp"
2130 librtmpt_protocol_deps="librtmp"
2131 librtmpte_protocol_deps="librtmp"
2132 mmsh_protocol_select="http_protocol"
2133 mmst_protocol_select="network"
2134 rtmp_protocol_deps="!librtmp_protocol"
2135 rtmp_protocol_select="tcp_protocol"
2136 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2137 rtmps_protocol_deps="!librtmp_protocol"
2138 rtmps_protocol_select="tls_protocol"
2139 rtmpt_protocol_select="ffrtmphttp_protocol"
2140 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2141 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2142 rtp_protocol_select="udp_protocol"
2143 sctp_protocol_deps="struct_sctp_event_subscribe"
2144 sctp_protocol_select="network"
2145 srtp_protocol_select="rtp_protocol"
2146 tcp_protocol_select="network"
2147 tls_protocol_deps_any="openssl gnutls"
2148 tls_protocol_select="tcp_protocol"
2149 udp_protocol_select="network"
2150 unix_protocol_deps="sys_un_h"
2151 unix_protocol_select="network"
2152
2153 # filters
2154 blackframe_filter_deps="gpl"
2155 boxblur_filter_deps="gpl"
2156 bs2b_filter_deps="libbs2b"
2157 cropdetect_filter_deps="gpl"
2158 delogo_filter_deps="gpl"
2159 drawtext_filter_deps="libfreetype"
2160 frei0r_filter_deps="frei0r dlopen"
2161 frei0r_filter_extralibs='$ldl'
2162 frei0r_src_filter_deps="frei0r dlopen"
2163 frei0r_src_filter_extralibs='$ldl'
2164 hqdn3d_filter_deps="gpl"
2165 interlace_filter_deps="gpl"
2166 ocv_filter_deps="libopencv"
2167 resample_filter_deps="avresample"
2168 scale_filter_deps="swscale"
2169
2170 # examples
2171 avcodec_example_deps="avcodec avutil"
2172 filter_audio_example_deps="avfilter avutil"
2173 metadata_example_deps="avformat avutil"
2174 output_example_deps="avcodec avformat avutil swscale"
2175 transcode_aac_example_deps="avcodec avformat avresample"
2176
2177 # libraries, in linking order
2178 avcodec_deps="avutil"
2179 avdevice_deps="avformat avcodec avutil"
2180 avfilter_deps="avutil"
2181 avformat_deps="avcodec avutil"
2182 avresample_deps="avutil"
2183 swscale_deps="avutil"
2184
2185 # programs
2186 avconv_deps="avcodec avfilter avformat avresample swscale"
2187 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2188                fps_filter null_filter resample_filter scale_filter
2189                setpts_filter trim_filter"
2190 avplay_deps="avcodec avformat avresample swscale sdl"
2191 avplay_libs='$sdl_libs'
2192 avplay_select="rdft"
2193 avprobe_deps="avcodec avformat"
2194
2195 # documentation
2196 pod2man_deps="doc"
2197 texi2html_deps="doc"
2198
2199 # default parameters
2200
2201 logfile="config.log"
2202
2203 # installation paths
2204 prefix_default="/usr/local"
2205 bindir_default='${prefix}/bin'
2206 datadir_default='${prefix}/share/avconv'
2207 docdir_default='${prefix}/share/doc/libav'
2208 incdir_default='${prefix}/include'
2209 libdir_default='${prefix}/lib'
2210 mandir_default='${prefix}/share/man'
2211 shlibdir_default="$libdir_default"
2212
2213 # toolchain
2214 ar_default="ar"
2215 cc_default="gcc"
2216 host_cc_default="gcc"
2217 cp_f="cp -f"
2218 ln_s="ln -s -f"
2219 nm_default="nm -g"
2220 objformat="elf"
2221 pkg_config_default=pkg-config
2222 ranlib="ranlib"
2223 strip="strip"
2224 yasmexe="yasm"
2225
2226 # machine
2227 arch_default=$(uname -m)
2228 cpu="generic"
2229 intrinsics="none"
2230
2231 # OS
2232 target_os_default=$(tolower $(uname -s))
2233 host_os=$target_os_default
2234
2235 # configurable options
2236 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2237
2238 enable asm
2239 enable debug
2240 enable doc
2241 enable faan faandct faanidct
2242 enable optimizations
2243 enable safe_bitstream_reader
2244 enable static
2245 enable swscale_alpha
2246
2247 # By default, enable only those hwaccels that have no external dependencies.
2248 enable dxva2 vda vdpau
2249
2250 # build settings
2251 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2252 LIBPREF="lib"
2253 LIBSUF=".a"
2254 FULLNAME='$(NAME)$(BUILDSUF)'
2255 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2256 SLIBPREF="lib"
2257 SLIBSUF=".so"
2258 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2259 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2260 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2261 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2262 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2263 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2264
2265 asflags_filter=echo
2266 cflags_filter=echo
2267 ldflags_filter=echo
2268
2269 AS_C='-c'
2270 AS_O='-o $@'
2271 CC_C='-c'
2272 CC_E='-E -o $@'
2273 CC_O='-o $@'
2274 LD_O='-o $@'
2275 LD_LIB='-l%'
2276 LD_PATH='-L'
2277 HOSTCC_C='-c'
2278 HOSTCC_E='-E -o $@'
2279 HOSTCC_O='-o $@'
2280 HOSTLD_O='-o $@'
2281
2282 host_libs='-lm'
2283 host_cflags_filter=echo
2284 host_ldflags_filter=echo
2285
2286 target_path='$(CURDIR)'
2287
2288 # since the object filename is not given with the -MM flag, the compiler
2289 # is only able to print the basename, and we must add the path ourselves
2290 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2291 DEPFLAGS='-MM'
2292
2293 # find source path
2294 if test -f configure; then
2295     source_path=.
2296 else
2297     source_path=$(cd $(dirname "$0"); pwd)
2298     echo "$source_path" | grep -q '[[:blank:]]' &&
2299         die "Out of tree builds are impossible with whitespace in source path."
2300     test -e "$source_path/config.h" &&
2301         die "Out of tree builds are impossible with config.h in source dir."
2302 fi
2303
2304 for v in "$@"; do
2305     r=${v#*=}
2306     l=${v%"$r"}
2307     r=$(sh_quote "$r")
2308     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2309 done
2310
2311 find_things(){
2312     thing=$1
2313     pattern=$2
2314     file=$source_path/$3
2315     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2316 }
2317
2318 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2319 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2320 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2321 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2322 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2323 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2324 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2325 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2326 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2327 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2328 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2329
2330 ALL_COMPONENTS="
2331     $BSF_LIST
2332     $DECODER_LIST
2333     $DEMUXER_LIST
2334     $ENCODER_LIST
2335     $FILTER_LIST
2336     $HWACCEL_LIST
2337     $INDEV_LIST
2338     $MUXER_LIST
2339     $OUTDEV_LIST
2340     $PARSER_LIST
2341     $PROTOCOL_LIST
2342 "
2343
2344 for n in $COMPONENT_LIST; do
2345     v=$(toupper ${n%s})_LIST
2346     eval enable \$$v
2347     eval ${n}_if_any="\$$v"
2348 done
2349
2350 enable $ARCH_EXT_LIST
2351
2352 die_unknown(){
2353     echo "Unknown option \"$1\"."
2354     echo "See $0 --help for available options."
2355     exit 1
2356 }
2357
2358 print_3_columns() {
2359     cat | tr ' ' '\n' | sort | pr -r -3 -t
2360 }
2361
2362 show_list() {
2363     suffix=_$1
2364     shift
2365     echo $* | sed s/$suffix//g | print_3_columns
2366     exit 0
2367 }
2368
2369 rand_list(){
2370     IFS=', '
2371     set -- $*
2372     unset IFS
2373     for thing; do
2374         comp=${thing%:*}
2375         prob=${thing#$comp}
2376         prob=${prob#:}
2377         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2378         echo "prob ${prob:-0.5}"
2379         printf '%s\n' $comp
2380     done
2381 }
2382
2383 do_random(){
2384     action=$1
2385     shift
2386     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2387     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2388 }
2389
2390 for opt do
2391     optval="${opt#*=}"
2392     case "$opt" in
2393         --extra-ldflags=*)
2394             add_ldflags $optval
2395         ;;
2396         --extra-ldexeflags=*)
2397             add_ldexeflags $optval
2398         ;;
2399         --extra-libs=*)
2400             add_extralibs $optval
2401         ;;
2402         --disable-devices)
2403             disable $INDEV_LIST $OUTDEV_LIST
2404         ;;
2405         --enable-debug=*)
2406             debuglevel="$optval"
2407         ;;
2408         --disable-programs)
2409             disable $PROGRAM_LIST
2410         ;;
2411         --disable-everything)
2412             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2413         ;;
2414         --disable-all)
2415             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2416             disable $LIBRARY_LIST $PROGRAM_LIST doc
2417         ;;
2418         --enable-random|--disable-random)
2419             action=${opt%%-random}
2420             do_random ${action#--} $COMPONENT_LIST
2421         ;;
2422         --enable-random=*|--disable-random=*)
2423             action=${opt%%-random=*}
2424             do_random ${action#--} $optval
2425         ;;
2426         --enable-*=*|--disable-*=*)
2427             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2428             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2429             eval list=\$$(toupper $thing)_LIST
2430             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2431             $action $(filter "$name" $list)
2432         ;;
2433         --enable-avserver|--disable-avserver*)
2434             warn "avserver has been removed, the ${opt} option is only"\
2435                  "provided for compatibility and will be removed in the future"
2436         ;;
2437         --enable-?*|--disable-?*)
2438             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2439             if is_in $option $COMPONENT_LIST; then
2440                 test $action = disable && action=unset
2441                 eval $action \$$(toupper ${option%s})_LIST
2442             elif is_in $option $CMDLINE_SELECT; then
2443                 $action $option
2444             else
2445                 die_unknown $opt
2446             fi
2447         ;;
2448         --list-*)
2449             NAME="${opt#--list-}"
2450             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2451             NAME=${NAME%s}
2452             eval show_list $NAME \$$(toupper $NAME)_LIST
2453         ;;
2454         --help|-h) show_help
2455         ;;
2456         *)
2457             optname="${opt%%=*}"
2458             optname="${optname#--}"
2459             optname=$(echo "$optname" | sed 's/-/_/g')
2460             if is_in $optname $CMDLINE_SET; then
2461                 eval $optname='$optval'
2462             elif is_in $optname $CMDLINE_APPEND; then
2463                 append $optname "$optval"
2464             else
2465                 die_unknown $opt
2466             fi
2467         ;;
2468     esac
2469 done
2470
2471 disabled logging && logfile=/dev/null
2472
2473 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2474 set >> $logfile
2475
2476 test -n "$cross_prefix" && enable cross_compile
2477
2478 if enabled cross_compile; then
2479     test -n "$arch" && test -n "$target_os" ||
2480         die "Must specify target arch and OS when cross-compiling"
2481 fi
2482
2483 ar_default="${cross_prefix}${ar_default}"
2484 cc_default="${cross_prefix}${cc_default}"
2485 nm_default="${cross_prefix}${nm_default}"
2486 pkg_config_default="${cross_prefix}${pkg_config_default}"
2487 ranlib="${cross_prefix}${ranlib}"
2488 strip="${cross_prefix}${strip}"
2489
2490 sysinclude_default="${sysroot}/usr/include"
2491
2492 case "$toolchain" in
2493     clang-asan)
2494         cc_default="clang"
2495         add_cflags  -fsanitize=address
2496         add_ldflags -fsanitize=address
2497     ;;
2498     clang-tsan)
2499         cc_default="clang"
2500         add_cflags  -fsanitize=thread -pie
2501         add_ldflags -fsanitize=thread -pie
2502     ;;
2503     clang-usan)
2504         cc_default="clang"
2505         add_cflags  -fsanitize=undefined -O1
2506         add_ldflags -fsanitize=undefined
2507     ;;
2508     gcc-asan)
2509         cc_default="gcc"
2510         add_cflags  -fsanitize=address
2511         add_ldflags -fsanitize=address
2512     ;;
2513     gcc-tsan)
2514         cc_default="gcc"
2515         add_cflags  -fsanitize=thread -pie -fPIC
2516         add_ldflags -fsanitize=thread -pie -fPIC
2517     ;;
2518     gcc-usan)
2519         cc_default="gcc"
2520         add_cflags  -fsanitize=undefined
2521         add_ldflags -fsanitize=undefined
2522     ;;
2523     valgrind-massif)
2524         target_exec_default="valgrind"
2525         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2526     ;;
2527     valgrind-memcheck)
2528         target_exec_default="valgrind"
2529         target_exec_args="--track-origins=yes --leak-check=full"
2530     ;;
2531     msvc)
2532         # Check whether the current MSVC version needs the C99 converter.
2533         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2534         # support enough of C99 to build libav. Default to the new
2535         # behaviour if the regexp was unable to match anything, since this
2536         # successfully parses the version number of existing supported
2537         # versions that require the converter (MSVC 2010 and 2012).
2538         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2539         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2540             cc_default="cl"
2541         else
2542             cc_default="c99wrap cl"
2543         fi
2544         ld_default="link"
2545         nm_default="dumpbin -symbols"
2546         ar_default="lib"
2547         target_os_default="win32"
2548         # Use a relative path for TMPDIR. This makes sure all the
2549         # ffconf temp files are written with a relative path, avoiding
2550         # issues with msys/win32 path conversion for MSVC parameters
2551         # such as -Fo<file> or -out:<file>.
2552         TMPDIR=.
2553     ;;
2554     icl)
2555         cc_default="icl"
2556         ld_default="xilink"
2557         nm_default="dumpbin -symbols"
2558         ar_default="xilib"
2559         target_os_default="win32"
2560         TMPDIR=.
2561     ;;
2562     gcov)
2563         add_cflags  -fprofile-arcs -ftest-coverage
2564         add_ldflags -fprofile-arcs -ftest-coverage
2565     ;;
2566     hardened)
2567         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2568         add_cflags   -fno-strict-overflow -fstack-protector-all
2569         add_ldflags  -Wl,-z,relro -Wl,-z,now
2570     ;;
2571     ?*)
2572         die "Unknown toolchain $toolchain"
2573     ;;
2574 esac
2575
2576 set_default arch cc pkg_config sysinclude target_exec target_os
2577 enabled cross_compile || host_cc_default=$cc
2578 set_default host_cc
2579
2580 if ! $pkg_config --version >/dev/null 2>&1; then
2581     warn "$pkg_config not found, library detection may fail."
2582     pkg_config=false
2583 fi
2584
2585 exesuf() {
2586     case $1 in
2587         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2588     esac
2589 }
2590
2591 EXESUF=$(exesuf $target_os)
2592 HOSTEXESUF=$(exesuf $host_os)
2593
2594 # set temporary file name
2595 : ${TMPDIR:=$TEMPDIR}
2596 : ${TMPDIR:=$TMP}
2597 : ${TMPDIR:=/tmp}
2598
2599 if ! check_cmd mktemp -u XXXXXX; then
2600     # simple replacement for missing mktemp
2601     # NOT SAFE FOR GENERAL USE
2602     mktemp(){
2603         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2604     }
2605 fi
2606
2607 tmpfile(){
2608     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2609         (set -C; exec > $tmp) 2>/dev/null ||
2610         die "Unable to create temporary file in $TMPDIR."
2611     append TMPFILES $tmp
2612     eval $1=$tmp
2613 }
2614
2615 trap 'rm -f -- $TMPFILES' EXIT
2616
2617 tmpfile TMPASM .asm
2618 tmpfile TMPC   .c
2619 tmpfile TMPE   $EXESUF
2620 tmpfile TMPH   .h
2621 tmpfile TMPO   .o
2622 tmpfile TMPS   .S
2623 tmpfile TMPSH  .sh
2624 tmpfile TMPV   .ver
2625
2626 unset -f mktemp
2627
2628 chmod +x $TMPE
2629
2630 # make sure we can execute files in $TMPDIR
2631 cat > $TMPSH 2>> $logfile <<EOF
2632 #! /bin/sh
2633 EOF
2634 chmod +x $TMPSH >> $logfile 2>&1
2635 if ! $TMPSH >> $logfile 2>&1; then
2636     cat <<EOF
2637 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2638 variable to another directory and make sure that it is not mounted noexec.
2639 EOF
2640     die "Sanity test failed."
2641 fi
2642
2643 armasm_flags(){
2644     for flag; do
2645         case $flag in
2646             # Filter out MSVC cl.exe options from cflags that shouldn't
2647             # be passed to gas-preprocessor
2648             -M[TD]*)                                            ;;
2649             *)                  echo $flag                      ;;
2650         esac
2651    done
2652 }
2653
2654 ccc_flags(){
2655     for flag; do
2656         case $flag in
2657             -std=c99)           echo -c99                       ;;
2658             -mcpu=*)            echo -arch ${flag#*=}           ;;
2659             -mieee)             echo -ieee                      ;;
2660             -O*|-fast)          echo $flag                      ;;
2661             -fno-math-errno)    echo -assume nomath_errno       ;;
2662             -g)                 echo -g3                        ;;
2663             -Wall)              echo -msg_enable level2         ;;
2664             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2665             -Wl,*)              echo $flag                      ;;
2666             -f*|-W*)                                            ;;
2667             *)                  echo $flag                      ;;
2668         esac
2669    done
2670 }
2671
2672 cparser_flags(){
2673     for flag; do
2674         case $flag in
2675             -Wno-switch)             echo -Wno-switch-enum ;;
2676             -Wno-format-zero-length) ;;
2677             -Wdisabled-optimization) ;;
2678             -Wno-pointer-sign)       echo -Wno-other ;;
2679             *)                       echo $flag ;;
2680         esac
2681     done
2682 }
2683
2684 msvc_common_flags(){
2685     for flag; do
2686         case $flag in
2687             # In addition to specifying certain flags under the compiler
2688             # specific filters, they must be specified here as well or else the
2689             # generic catch all at the bottom will print the original flag.
2690             -Wall)                ;;
2691             -std=c99)             ;;
2692             # Common flags
2693             -fomit-frame-pointer) ;;
2694             -g)                   echo -Z7 ;;
2695             -fno-math-errno)      ;;
2696             -fno-common)          ;;
2697             -fno-signed-zeros)    ;;
2698             -fPIC)                ;;
2699             -mthumb)              ;;
2700             -march=*)             ;;
2701             -lz)                  echo zlib.lib ;;
2702             -lavifil32)           echo vfw32.lib ;;
2703             -lavicap32)           echo vfw32.lib user32.lib ;;
2704             -l*)                  echo ${flag#-l}.lib ;;
2705             -L*)                  echo -libpath:${flag#-L} ;;
2706             *)                    echo $flag ;;
2707         esac
2708     done
2709 }
2710
2711 msvc_flags(){
2712     msvc_common_flags "$@"
2713     for flag; do
2714         case $flag in
2715             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2716                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2717                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2718                                        -wd4273 -wd4701 ;;
2719         esac
2720     done
2721 }
2722
2723 icl_flags(){
2724     msvc_common_flags "$@"
2725     for flag; do
2726         case $flag in
2727             # Despite what Intel's documentation says -Wall, which is supported
2728             # on Windows, does enable remarks so disable them here.
2729             -Wall)                echo $flag -Qdiag-disable:remark ;;
2730             -std=c99)             echo -Qstd=c99 ;;
2731         esac
2732     done
2733 }
2734
2735 pgi_flags(){
2736     for flag; do
2737         case $flag in
2738             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2739             -fomit-frame-pointer) echo -Mnoframe ;;
2740             -g)                   echo -gopt ;;
2741             *)                    echo $flag ;;
2742         esac
2743     done
2744 }
2745
2746 suncc_flags(){
2747     for flag; do
2748         case $flag in
2749             -march=*|-mcpu=*)
2750                 case "${flag#*=}" in
2751                     native)                   echo -xtarget=native       ;;
2752                     v9|niagara)               echo -xarch=sparc          ;;
2753                     ultrasparc)               echo -xarch=sparcvis       ;;
2754                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2755                     i586|pentium)             echo -xchip=pentium        ;;
2756                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2757                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2758                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2759                     pentium4*)          echo -xtarget=pentium4           ;;
2760                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2761                     *-sse3)             echo -xarch=sse3                 ;;
2762                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2763                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2764                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2765                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2766                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2767                     k8|opteron|athlon64|athlon-fx)
2768                                                echo -xarch=sse2a         ;;
2769                     athlon*)                   echo -xarch=pentium_proa  ;;
2770                 esac
2771                 ;;
2772             -std=c99)             echo -xc99              ;;
2773             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2774             -fPIC)                echo -KPIC -xcode=pic32 ;;
2775             -W*,*)                echo $flag              ;;
2776             -f*-*|-W*|-mimpure-text)                      ;;
2777             -shared)              echo -G                 ;;
2778             *)                    echo $flag              ;;
2779         esac
2780     done
2781 }
2782
2783 tms470_flags(){
2784     for flag; do
2785         case $flag in
2786             -march=*|-mcpu=*)
2787                 case "${flag#*=}" in
2788                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2789                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2790                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2791                     armv6*|arm11*)          echo -mv=6   ;;
2792                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2793                                             echo -mv=5e  ;;
2794                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2795                 esac
2796                 ;;
2797             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2798             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2799             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2800             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2801             -msoft-float)   echo --float_support=vfplib       ;;
2802             -O[0-3]|-mf=*)  echo $flag                        ;;
2803             -g)             echo -g -mn                       ;;
2804             -pds=*)         echo $flag                        ;;
2805             -D*|-I*)        echo $flag                        ;;
2806             --gcc|--abi=*)  echo $flag                        ;;
2807             -me)            echo $flag                        ;;
2808         esac
2809     done
2810 }
2811
2812 probe_cc(){
2813     pfx=$1
2814     _cc=$2
2815
2816     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2817     unset _ld_o _ldflags _ld_lib _ld_path
2818     unset _depflags _DEPCMD _DEPFLAGS
2819     _flags_filter=echo
2820
2821     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2822         _type=llvm_gcc
2823         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2824         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2825         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2826         _cflags_speed='-O3'
2827         _cflags_size='-Os'
2828     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2829         _type=gcc
2830         gcc_version=$($_cc --version | head -n1)
2831         gcc_basever=$($_cc -dumpversion)
2832         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2833         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2834         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2835         if ! $_cc -dumpversion | grep -q '^2\.'; then
2836             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2837         fi
2838         _cflags_speed='-O3'
2839         _cflags_size='-Os'
2840     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2841         _type=icc
2842         _ident=$($_cc --version | head -n1)
2843         _depflags='-MMD'
2844         _cflags_speed='-O3'
2845         _cflags_size='-Os'
2846         _cflags_noopt='-O1'
2847     elif $_cc -v 2>&1 | grep -q xlc; then
2848         _type=xlc
2849         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2850         _cflags_speed='-O5'
2851         _cflags_size='-O5 -qcompact'
2852     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2853         _type=ccc
2854         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2855         _DEPFLAGS='-M'
2856         _cflags_speed='-fast'
2857         _cflags_size='-O1'
2858         _flags_filter=ccc_flags
2859     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2860         test -d "$sysroot" || die "No valid sysroot specified."
2861         _type=armcc
2862         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2863         armcc_conf="$PWD/armcc.conf"
2864         $_cc --arm_linux_configure                 \
2865              --arm_linux_config_file="$armcc_conf" \
2866              --configure_sysroot="$sysroot"        \
2867              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2868              die "Error creating armcc configuration file."
2869         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2870         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2871         as_default="${cross_prefix}gcc"
2872         _depflags='-MMD'
2873         _cflags_speed='-O3'
2874         _cflags_size='-Os'
2875     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2876         _type=tms470
2877         _ident=$($_cc -version | head -n1 | tr -s ' ')
2878         _flags='--gcc --abi=eabi -me'
2879         _cc_e='-ppl -fe=$@'
2880         _cc_o='-fe=$@'
2881         _depflags='-ppa -ppd=$(@:.o=.d)'
2882         _cflags_speed='-O3 -mf=5'
2883         _cflags_size='-O3 -mf=2'
2884         _flags_filter=tms470_flags
2885     elif $_cc -v 2>&1 | grep -q clang; then
2886         _type=clang
2887         _ident=$($_cc --version | head -n1)
2888         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2889         _cflags_speed='-O3'
2890         _cflags_size='-Os'
2891     elif $_cc -V 2>&1 | grep -q Sun; then
2892         _type=suncc
2893         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2894         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2895         _DEPFLAGS='-xM1 -xc99'
2896         _ldflags='-std=c99'
2897         _cflags_speed='-O5'
2898         _cflags_size='-O5 -xspace'
2899         _flags_filter=suncc_flags
2900     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2901         _type=pathscale
2902         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2903         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2904         _cflags_speed='-O2'
2905         _cflags_size='-Os'
2906         _flags_filter='filter_out -Wdisabled-optimization'
2907     elif $_cc -v 2>&1 | grep -q Open64; then
2908         _type=open64
2909         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2910         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2911         _cflags_speed='-O2'
2912         _cflags_size='-Os'
2913         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2914     elif $_cc -V 2>&1 | grep -q Portland; then
2915         _type=pgi
2916         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2917         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2918         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2919         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2920         _cflags_noopt="-O1"
2921         _flags_filter=pgi_flags
2922     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
2923         _type=armasm
2924         _ident=$($_cc | head -n1)
2925         # 4509: "This form of conditional instruction is deprecated"
2926         _flags="-nologo -ignore 4509"
2927         _flags_filter=armasm_flags
2928     elif $_cc 2>&1 | grep -q Microsoft; then
2929         _type=msvc
2930         _ident=$($cc 2>&1 | head -n1)
2931         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2932         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2933         _cflags_speed="-O2"
2934         _cflags_size="-O1"
2935         if $_cc 2>&1 | grep -q Linker; then
2936             _ld_o='-out:$@'
2937         else
2938             _ld_o='-Fe$@'
2939         fi
2940         _cc_o='-Fo$@'
2941         _cc_e='-P -Fi$@'
2942         _flags_filter=msvc_flags
2943         _ld_lib='lib%.a'
2944         _ld_path='-libpath:'
2945         _flags='-nologo'
2946         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2947         if [ $pfx = hostcc ]; then
2948             append _cflags -Dsnprintf=_snprintf
2949         fi
2950     elif $_cc 2>&1 | grep -q Intel; then
2951         _type=icl
2952         _ident=$($cc 2>&1 | head -n1)
2953         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2954         # Not only is O3 broken on 13.x+ but it is slower on all previous
2955         # versions (tested) as well.
2956         _cflags_speed="-O2"
2957         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2958         if $_cc 2>&1 | grep -q Linker; then
2959             _ld_o='-out:$@'
2960         else
2961             _ld_o='-Fe$@'
2962         fi
2963         _cc_o='-Fo$@'
2964         _cc_e='-P'
2965         _flags_filter=icl_flags
2966         _ld_lib='lib%.a'
2967         _ld_path='-libpath:'
2968         # -Qdiag-error to make icl error when seeing certain unknown arguments
2969         _flags='-nologo -Qdiag-error:4044,10157'
2970         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2971         # with MSVC which enables it by default.
2972         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2973         if [ $pfx = hostcc ]; then
2974             append _cflags -Dsnprintf=_snprintf
2975         fi
2976     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2977         _type=cparser
2978         _ident=$($_cc --version | head -n1)
2979         _depflags='-MMD'
2980         _cflags_speed='-O4'
2981         _cflags_size='-O2'
2982         _flags_filter=cparser_flags
2983     fi
2984
2985     eval ${pfx}_type=\$_type
2986     eval ${pfx}_ident=\$_ident
2987 }
2988
2989 set_ccvars(){
2990     eval ${1}_C=\${_cc_c-\${${1}_C}}
2991     eval ${1}_E=\${_cc_e-\${${1}_E}}
2992     eval ${1}_O=\${_cc_o-\${${1}_O}}
2993
2994     if [ -n "$_depflags" ]; then
2995         eval ${1}_DEPFLAGS=\$_depflags
2996     else
2997         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2998         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2999         eval DEP${1}FLAGS=\$_flags
3000     fi
3001 }
3002
3003 probe_cc cc "$cc"
3004 cflags_filter=$_flags_filter
3005 cflags_speed=$_cflags_speed
3006 cflags_size=$_cflags_size
3007 cflags_noopt=$_cflags_noopt
3008 add_cflags $_flags $_cflags
3009 cc_ldflags=$_ldflags
3010 set_ccvars CC
3011
3012 probe_cc hostcc "$host_cc"
3013 host_cflags_filter=$_flags_filter
3014 add_host_cflags  $_flags $_cflags
3015 set_ccvars HOSTCC
3016
3017 test -n "$cc_type" && enable $cc_type ||
3018     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3019
3020 : ${as_default:=$cc}
3021 : ${dep_cc_default:=$cc}
3022 : ${ld_default:=$cc}
3023 : ${host_ld_default:=$host_cc}
3024 set_default ar as dep_cc ld host_ld
3025
3026 probe_cc as "$as"
3027 asflags_filter=$_flags_filter
3028 add_asflags $_flags $_cflags
3029 set_ccvars AS
3030
3031 probe_cc ld "$ld"
3032 ldflags_filter=$_flags_filter
3033 add_ldflags $_flags $_ldflags
3034 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3035 LD_O=${_ld_o-$LD_O}
3036 LD_LIB=${_ld_lib-$LD_LIB}
3037 LD_PATH=${_ld_path-$LD_PATH}
3038
3039 probe_cc hostld "$host_ld"
3040 host_ldflags_filter=$_flags_filter
3041 add_host_ldflags $_flags $_ldflags
3042 HOSTLD_O=${_ld_o-$HOSTLD_O}
3043
3044 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3045     probe_cc depcc "$dep_cc"
3046     CCDEP=${_DEPCMD:-$DEPCMD}
3047     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3048     DEPCCFLAGS=$_flags
3049 fi
3050
3051 if $ar 2>&1 | grep -q Microsoft; then
3052     arflags="-nologo"
3053     ar_o='-out:$@'
3054 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3055     arflags="rq"
3056     ar_o='$@'
3057 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3058     arflags='-Xany -r -c'
3059     ar_o='$@'
3060 else
3061     arflags="rc"
3062     ar_o='$@'
3063 fi
3064
3065 add_cflags $extra_cflags
3066 add_asflags $extra_cflags
3067
3068 if test -n "$sysroot"; then
3069     case "$cc_type" in
3070         gcc|llvm_gcc|clang)
3071             add_cppflags --sysroot="$sysroot"
3072             add_ldflags --sysroot="$sysroot"
3073         ;;
3074         tms470)
3075             add_cppflags -I"$sysinclude"
3076             add_ldflags  --sysroot="$sysroot"
3077         ;;
3078     esac
3079 fi
3080
3081 if test "$cpu" = host; then
3082     enabled cross_compile &&
3083         die "--cpu=host makes no sense when cross-compiling."
3084
3085     case "$cc_type" in
3086         gcc|llvm_gcc)
3087             check_native(){
3088                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3089                 sed -n "/cc1.*$1=/{
3090                             s/.*$1=\\([^ ]*\\).*/\\1/
3091                             p
3092                             q
3093                         }" $TMPE
3094             }
3095             cpu=$(check_native -march || check_native -mcpu)
3096         ;;
3097     esac
3098
3099     test "${cpu:-host}" = host &&
3100         die "--cpu=host not supported with compiler $cc"
3101 fi
3102
3103 # Deal with common $arch aliases
3104 case "$arch" in
3105     aarch64|arm64)
3106         arch="aarch64"
3107     ;;
3108     arm*)
3109         arch="arm"
3110     ;;
3111     mips*|IP*)
3112         arch="mips"
3113     ;;
3114     parisc*|hppa*)
3115         arch="parisc"
3116     ;;
3117     "Power Macintosh"|ppc*|powerpc*)
3118         arch="ppc"
3119     ;;
3120     s390|s390x)
3121         arch="s390"
3122     ;;
3123     sh4|sh)
3124         arch="sh4"
3125     ;;
3126     sun4u|sparc*)
3127         arch="sparc"
3128     ;;
3129     tilegx|tile-gx)
3130         arch="tilegx"
3131     ;;
3132     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3133         arch="x86"
3134     ;;
3135 esac
3136
3137 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3138 enable $arch
3139
3140 # Add processor-specific flags
3141 if enabled aarch64; then
3142
3143     case $cpu in
3144         armv*)
3145             cpuflags="-march=$cpu"
3146         ;;
3147         *)
3148             cpuflags="-mcpu=$cpu"
3149         ;;
3150     esac
3151
3152 elif enabled alpha; then
3153
3154     cpuflags="-mcpu=$cpu"
3155
3156 elif enabled arm; then
3157
3158     check_arm_arch() {
3159         check_cpp_condition stddef.h \
3160             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3161             $cpuflags
3162     }
3163
3164     probe_arm_arch() {
3165         if   check_arm_arch 4;        then echo armv4;
3166         elif check_arm_arch 4T;       then echo armv4t;
3167         elif check_arm_arch 5;        then echo armv5;
3168         elif check_arm_arch 5E;       then echo armv5e;
3169         elif check_arm_arch 5T;       then echo armv5t;
3170         elif check_arm_arch 5TE;      then echo armv5te;
3171         elif check_arm_arch 5TEJ;     then echo armv5te;
3172         elif check_arm_arch 6;        then echo armv6;
3173         elif check_arm_arch 6J;       then echo armv6j;
3174         elif check_arm_arch 6K;       then echo armv6k;
3175         elif check_arm_arch 6Z;       then echo armv6z;
3176         elif check_arm_arch 6ZK;      then echo armv6zk;
3177         elif check_arm_arch 6T2;      then echo armv6t2;
3178         elif check_arm_arch 7;        then echo armv7;
3179         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3180         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3181         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3182         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3183         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3184         fi
3185     }
3186
3187     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3188
3189     case $cpu in
3190         armv*)
3191             cpuflags="-march=$cpu"
3192             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3193         ;;
3194         *)
3195             cpuflags="-mcpu=$cpu"
3196             case $cpu in
3197                 cortex-a*)                               subarch=armv7a  ;;
3198                 cortex-r*)                               subarch=armv7r  ;;
3199                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3200                 arm11*)                                  subarch=armv6   ;;
3201                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3202                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3203                 *)                             subarch=$(probe_arm_arch) ;;
3204             esac
3205         ;;
3206     esac
3207
3208     case "$subarch" in
3209         armv5t*)    enable fast_clz                ;;
3210         armv[6-8]*) enable fast_clz fast_unaligned ;;
3211     esac
3212
3213 elif enabled avr32; then
3214
3215     case $cpu in
3216         ap7[02]0[0-2])
3217             subarch="avr32_ap"
3218             cpuflags="-mpart=$cpu"
3219         ;;
3220         ap)
3221             subarch="avr32_ap"
3222             cpuflags="-march=$cpu"
3223         ;;
3224         uc3[ab]*)
3225             subarch="avr32_uc"
3226             cpuflags="-mcpu=$cpu"
3227         ;;
3228         uc)
3229             subarch="avr32_uc"
3230             cpuflags="-march=$cpu"
3231         ;;
3232     esac
3233
3234 elif enabled bfin; then
3235
3236     cpuflags="-mcpu=$cpu"
3237
3238 elif enabled mips; then
3239
3240     cpuflags="-march=$cpu"
3241
3242 elif enabled ppc; then
3243
3244     disable ldbrx
3245
3246     case $(tolower $cpu) in
3247         601|ppc601|powerpc601)
3248             cpuflags="-mcpu=601"
3249             disable altivec
3250         ;;
3251         603*|ppc603*|powerpc603*)
3252             cpuflags="-mcpu=603"
3253             disable altivec
3254         ;;
3255         604*|ppc604*|powerpc604*)
3256             cpuflags="-mcpu=604"
3257             disable altivec
3258         ;;
3259         g3|75*|ppc75*|powerpc75*)
3260             cpuflags="-mcpu=750"
3261             disable altivec
3262         ;;
3263         g4|745*|ppc745*|powerpc745*)
3264             cpuflags="-mcpu=7450"
3265         ;;
3266         74*|ppc74*|powerpc74*)
3267             cpuflags="-mcpu=7400"
3268         ;;
3269         g5|970|ppc970|powerpc970)
3270             cpuflags="-mcpu=970"
3271         ;;
3272         power[3-7]*)
3273             cpuflags="-mcpu=$cpu"
3274         ;;
3275         cell)
3276             cpuflags="-mcpu=cell"
3277             enable ldbrx
3278         ;;
3279         e500mc)
3280             cpuflags="-mcpu=e500mc"
3281             disable altivec
3282         ;;
3283         e500v2)
3284             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3285             disable altivec
3286             disable dcbzl
3287         ;;
3288         e500)
3289             cpuflags="-mcpu=8540 -mhard-float"
3290             disable altivec
3291             disable dcbzl
3292         ;;
3293     esac
3294
3295 elif enabled sparc; then
3296
3297     case $cpu in
3298         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3299             cpuflags="-mcpu=$cpu"
3300         ;;
3301         ultrasparc*|niagara[234])
3302             cpuflags="-mcpu=$cpu"
3303         ;;
3304     esac
3305
3306 elif enabled x86; then
3307
3308     case $cpu in
3309         i[345]86|pentium)
3310             cpuflags="-march=$cpu"
3311             disable i686
3312             disable mmx
3313         ;;
3314         # targets that do NOT support nopl and conditional mov (cmov)
3315         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3316             cpuflags="-march=$cpu"
3317             disable i686
3318         ;;
3319         # targets that do support nopl and conditional mov (cmov)
3320         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3321             cpuflags="-march=$cpu"
3322             enable i686
3323             enable fast_cmov
3324         ;;
3325         # targets that do support conditional mov but on which it's slow
3326         pentium4|pentium4m|prescott|nocona)
3327             cpuflags="-march=$cpu"
3328             enable i686
3329             disable fast_cmov
3330         ;;
3331     esac
3332
3333 fi
3334
3335 if [ "$cpu" != generic ]; then
3336     add_cflags  $cpuflags
3337     add_asflags $cpuflags
3338 fi
3339
3340 # compiler sanity check
3341 check_exec <<EOF
3342 int main(void){ return 0; }
3343 EOF
3344 if test "$?" != 0; then
3345     echo "$cc is unable to create an executable file."
3346     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3347         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3348         echo "Only do this if you know what cross compiling means."
3349     fi
3350     die "C compiler test failed."
3351 fi
3352
3353 add_cppflags -D_ISOC99_SOURCE
3354 check_cflags -std=c99
3355 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3356 #include <stdlib.h>
3357 EOF
3358 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3359 #include <stdlib.h>
3360 EOF
3361
3362 add_host_cppflags -D_ISOC99_SOURCE
3363 check_host_cflags -std=c99
3364 check_host_cflags -Wall
3365 check_host_cflags -O3
3366
3367 check_64bit(){
3368     arch32=$1
3369     arch64=$2
3370     expr=$3
3371     check_code cc "" "int test[2*($expr) - 1]" &&
3372         subarch=$arch64 || subarch=$arch32
3373 }
3374
3375 case "$arch" in
3376     aarch64|alpha|ia64)
3377         spic=$shared
3378     ;;
3379     mips)
3380         check_64bit mips mips64 '_MIPS_SIM > 1'
3381         spic=$shared
3382     ;;
3383     parisc)
3384         check_64bit parisc parisc64 'sizeof(void *) > 4'
3385         spic=$shared
3386     ;;
3387     ppc)
3388         check_64bit ppc ppc64 'sizeof(void *) > 4'
3389         spic=$shared
3390     ;;
3391     s390)
3392         check_64bit s390 s390x 'sizeof(void *) > 4'
3393         spic=$shared
3394     ;;
3395     sparc)
3396         check_64bit sparc sparc64 'sizeof(void *) > 4'
3397         spic=$shared
3398     ;;
3399     x86)
3400         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3401         if test "$subarch" = "x86_64"; then
3402             spic=$shared
3403         fi
3404     ;;
3405 esac
3406
3407 enable $subarch
3408 enabled spic && enable_weak pic
3409
3410 # OS specific
3411 case $target_os in
3412     aix)
3413         SHFLAGS=-shared
3414         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3415         enabled shared && add_ldflags -Wl,-brtl
3416         ;;
3417     android)
3418         disable symver
3419         enable section_data_rel_ro
3420         SLIB_INSTALL_NAME='$(SLIBNAME)'
3421         SLIB_INSTALL_LINKS=
3422         # soname not set on purpose
3423         SHFLAGS=-shared
3424         ;;
3425     haiku)
3426         prefix_default="/boot/common"
3427         network_extralibs="-lnetwork"
3428         host_libs=
3429         ;;
3430     sunos)
3431         SHFLAGS='-shared -Wl,-h,$$(@F)'
3432         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3433         network_extralibs="-lsocket -lnsl"
3434         # When using suncc to build, the Solaris linker will mark
3435         # an executable with each instruction set encountered by
3436         # the Solaris assembler.  As our libraries contain their own
3437         # guards for processor-specific code, instead suppress
3438         # generation of the HWCAPS ELF section on Solaris x86 only.
3439         enabled_all suncc x86 &&
3440             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3441             add_ldflags -Wl,-M,mapfile
3442         nm_default='nm -P -g'
3443         ;;
3444     netbsd)
3445         disable symver
3446         oss_indev_extralibs="-lossaudio"
3447         oss_outdev_extralibs="-lossaudio"
3448         ;;
3449     openbsd|bitrig)
3450         disable symver
3451         SHFLAGS='-shared'
3452         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3453         SLIB_INSTALL_LINKS=
3454         oss_indev_extralibs="-lossaudio"
3455         oss_outdev_extralibs="-lossaudio"
3456         ;;
3457     dragonfly)
3458         disable symver
3459         ;;
3460     freebsd)
3461         ;;
3462     bsd/os)
3463         add_extralibs -lpoll -lgnugetopt
3464         ;;
3465     darwin)
3466         enabled ppc && add_asflags -force_cpusubtype_ALL
3467         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3468         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3469         add_ldflags -Wl,-dynamic,-search_paths_first
3470         SLIBSUF=".dylib"
3471         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3472         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3473         objformat="macho"
3474         enabled x86_64 && objformat="macho64"
3475         enabled_any pic shared ||
3476             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3477         ;;
3478     mingw32*)
3479         if test $target_os = "mingw32ce"; then
3480             disable network
3481         else
3482             target_os=mingw32
3483         fi
3484         LIBTARGET=i386
3485         if enabled x86_64; then
3486             LIBTARGET="i386:x86-64"
3487         elif enabled arm; then
3488             LIBTARGET=arm-wince
3489         fi
3490         check_ldflags -Wl,--nxcompat
3491         check_ldflags -Wl,--dynamicbase
3492         shlibdir_default="$bindir_default"
3493         SLIBPREF=""
3494         SLIBSUF=".dll"
3495         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3496         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3497         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3498         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3499         SLIB_INSTALL_LINKS=
3500         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3501         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3502         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3503         objformat="win32"
3504         dlltool="${cross_prefix}dlltool"
3505         ranlib=:
3506         enable dos_paths
3507         ;;
3508     win32|win64)
3509         disable symver
3510         if enabled shared; then
3511             # Link to the import library instead of the normal static library
3512             # for shared libs.
3513             LD_LIB='%.lib'
3514             # Cannot build both shared and static libs with MSVC or icl.
3515             disable static
3516         fi
3517         shlibdir_default="$bindir_default"
3518         SLIBPREF=""
3519         SLIBSUF=".dll"
3520         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3521         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3522         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3523         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3524         SLIB_INSTALL_LINKS=
3525         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3526         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3527         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3528         objformat="win32"
3529         ranlib=:
3530         enable dos_paths
3531         ;;
3532     cygwin*)
3533         target_os=cygwin
3534         shlibdir_default="$bindir_default"
3535         SLIBPREF="cyg"
3536         SLIBSUF=".dll"
3537         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3538         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3539         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3540         SLIB_INSTALL_LINKS=
3541         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3542         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3543         objformat="win32"
3544         enable dos_paths
3545         ;;
3546     *-dos|freedos|opendos)
3547         network_extralibs="-lsocket"
3548         objformat="coff"
3549         enable dos_paths
3550         add_cppflags -U__STRICT_ANSI__
3551         ;;
3552     linux)
3553         enable dv1394
3554         enable section_data_rel_ro
3555         ;;
3556     irix*)
3557         target_os=irix
3558         ranlib="echo ignoring ranlib"
3559         ;;
3560     os/2*)
3561         ln_s="cp -f"
3562         objformat="aout"
3563         add_cppflags -D_GNU_SOURCE
3564         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3565         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3566         LIBSUF="_s.a"
3567         SLIBPREF=""
3568         SLIBSUF=".dll"
3569         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3570         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3571         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3572             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3573             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3574             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3575             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3576             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3577         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3578             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3579         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3580         enable dos_paths
3581         ;;
3582     gnu/kfreebsd)
3583         add_cppflags -D_BSD_SOURCE
3584         ;;
3585     gnu)
3586         ;;
3587     qnx)
3588         add_cppflags -D_QNX_SOURCE
3589         network_extralibs="-lsocket"
3590         ;;
3591     symbian)
3592         SLIBSUF=".dll"
3593         enable dos_paths
3594         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3595         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3596         add_ldflags -Wl,--target1-abs,--no-undefined \
3597                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3598                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3599         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3600                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3601                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3602         ;;
3603     osf1)
3604         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3605         ;;
3606     minix)
3607         ;;
3608     plan9)
3609         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3610                      -D_REENTRANT_SOURCE        \
3611                      -D_RESEARCH_SOURCE         \
3612                      -DFD_SETSIZE=96            \
3613                      -DHAVE_SOCK_OPTS
3614         add_compat strtod.o strtod=avpriv_strtod
3615         network_extralibs='-lbsd'
3616         exeobjs=compat/plan9/main.o
3617         cp_f='cp'
3618         ;;
3619     none)
3620         ;;
3621     *)
3622         die "Unknown OS '$target_os'."
3623         ;;
3624 esac
3625
3626 # determine libc flavour
3627
3628 probe_libc(){
3629     pfx=$1
3630     pfx_no_=${pfx%_}
3631     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3632     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3633         eval ${pfx}libc_type=uclibc
3634         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3635     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3636         eval ${pfx}libc_type=glibc
3637         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3638     # MinGW headers can be installed on Cygwin, so check for newlib first.
3639     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3640         eval ${pfx}libc_type=newlib
3641         add_${pfx}cppflags -U__STRICT_ANSI__
3642     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3643     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3644         eval ${pfx}libc_type=mingw64
3645         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3646         eval test \$${pfx_no_}cc_type = "gcc" &&
3647             add_${pfx}cppflags -D__printf__=__gnu_printf__
3648     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3649          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3650         eval ${pfx}libc_type=mingw32
3651         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3652             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3653             die "ERROR: MinGW32 runtime version must be >= 3.15."
3654         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3655         eval test \$${pfx_no_}cc_type = "gcc" &&
3656             add_${pfx}cppflags -D__printf__=__gnu_printf__
3657     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3658         eval ${pfx}libc_type=msvcrt
3659         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3660         # 0x601 by default unless something else is set by the user.
3661         # This can easily lead to us detecting functions only present
3662         # in such new versions and producing binaries requiring windows 7.0.
3663         # Therefore explicitly set the default to XP unless the user has
3664         # set something else on the command line.
3665         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3666             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3667     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3668         eval ${pfx}libc_type=klibc
3669     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3670         eval ${pfx}libc_type=bionic
3671     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3672         eval ${pfx}libc_type=solaris
3673         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3674     else
3675         eval ${pfx}libc_type=default
3676         add_${pfx}cppflags -D_DEFAULT_SOURCE
3677     fi
3678 }
3679
3680 probe_libc
3681 test -n "$libc_type" && enable libc_$libc_type
3682 probe_libc host_
3683 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3684
3685 case $libc_type in
3686     bionic)
3687         add_compat strtod.o strtod=avpriv_strtod
3688         ;;
3689     msvcrt)
3690         add_compat strtod.o strtod=avpriv_strtod
3691         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3692                                      _snprintf=avpriv_snprintf  \
3693                                      vsnprintf=avpriv_vsnprintf
3694         ;;
3695 esac
3696
3697 # hacks for compiler/libc/os combinations
3698
3699 if enabled_all tms470 libc_glibc; then
3700     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3701     add_cppflags -D__USER_LABEL_PREFIX__=
3702     add_cppflags -D__builtin_memset=memset
3703     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3704     add_cflags   -pds=48    # incompatible redefinition of macro
3705 fi
3706
3707 if enabled_all ccc libc_glibc; then
3708     add_ldflags -Wl,-z,now  # calls to libots crash without this
3709 fi
3710
3711 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3712     add_cppflags '-I\$(SRC_PATH)/compat/float'
3713
3714 esc(){
3715     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3716 }
3717
3718 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3719
3720 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3721
3722 set_default $PATHS_LIST
3723 set_default nm
3724
3725 # we need to build at least one lib type
3726 if ! enabled_any static shared; then
3727     cat <<EOF
3728 At least one library type must be built.
3729 Specify --enable-static to build the static libraries or --enable-shared to
3730 build the shared libraries as well. To only build the shared libraries specify
3731 --disable-static in addition to --enable-shared.
3732 EOF
3733     exit 1;
3734 fi
3735
3736 die_license_disabled() {
3737     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3738 }
3739
3740 die_license_disabled gpl libcdio
3741 die_license_disabled gpl libx264
3742 die_license_disabled gpl libx265
3743 die_license_disabled gpl libxavs
3744 die_license_disabled gpl libxvid
3745 die_license_disabled gpl x11grab
3746
3747 die_license_disabled nonfree libfaac
3748 die_license_disabled nonfree libfdk_aac
3749 die_license_disabled nonfree openssl
3750
3751 die_license_disabled version3 libopencore_amrnb
3752 die_license_disabled version3 libopencore_amrwb
3753 die_license_disabled version3 libvo_aacenc
3754 die_license_disabled version3 libvo_amrwbenc
3755
3756 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3757
3758 disabled optimizations || check_cflags -fomit-frame-pointer
3759
3760 enable_weak_pic() {
3761     disabled pic && return
3762     enable pic
3763     add_cppflags -DPIC
3764     case "$target_os" in
3765     mingw*|cygwin*)
3766         ;;
3767     *)
3768         add_cflags -fPIC
3769         ;;
3770     esac
3771     add_asflags  -fPIC
3772 }
3773
3774 enabled pic && enable_weak_pic
3775
3776 check_cc <<EOF || die "Symbol mangling check failed."
3777 int ff_extern;
3778 EOF
3779 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3780 extern_prefix=${sym%%ff_extern*}
3781
3782 check_cc <<EOF && enable_weak inline_asm
3783 void foo(void) { __asm__ volatile ("" ::); }
3784 EOF
3785
3786 _restrict=
3787 for restrict_keyword in restrict __restrict__ __restrict; do
3788     check_cc <<EOF && _restrict=$restrict_keyword && break
3789 void foo(char * $restrict_keyword p);
3790 EOF
3791 done
3792
3793 check_cc <<EOF && enable pragma_deprecated
3794 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3795 EOF
3796
3797 check_cc <<EOF && enable attribute_packed
3798 struct { int x; } __attribute__((packed)) x;
3799 EOF
3800
3801 check_cc <<EOF && enable attribute_may_alias
3802 union { int x; } __attribute__((may_alias)) x;
3803 EOF
3804
3805 check_cc <<EOF || die "endian test failed"
3806 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3807 EOF
3808 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3809
3810 check_gas() {
3811     log "check_gas using '$as' as AS"
3812     # :vararg is used on aarch64, arm and ppc altivec
3813     check_as <<EOF || return 1
3814 .macro m n, y:vararg=0
3815 \n: .int \y
3816 .endm
3817 m x
3818 EOF
3819     # .altmacro is only used in arm asm
3820     ! enabled arm || check_as <<EOF || return 1
3821 .altmacro
3822 EOF
3823     enable gnu_as
3824     return 0
3825 }
3826
3827 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3828     nogas=:
3829     enabled_any arm aarch64 && nogas=die
3830     enabled_all ppc altivec && nogas=warn
3831     as_noop=-v
3832
3833     case $as_type in
3834         arm*) gaspp_as_type=armasm; as_noop=-h ;;
3835         gcc)  gaspp_as_type=gas ;;
3836         *)    gaspp_as_type=$as_type ;;
3837     esac
3838
3839     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3840
3841     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3842         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3843
3844     if ! check_gas ; then
3845         as=${gas:=$as}
3846         check_gas || \
3847             $nogas "GNU assembler not found, install/update gas-preprocessor"
3848     fi
3849
3850     check_as <<EOF && enable as_func
3851 .func test
3852 .endfunc
3853 EOF
3854 fi
3855
3856 check_inline_asm inline_asm_labels '"1:\n"'
3857
3858 if enabled aarch64; then
3859     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
3860     # internal assembler in clang 3.3 does not support this instruction
3861     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
3862     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
3863
3864     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3865
3866 elif enabled alpha; then
3867
3868     check_cflags -mieee
3869
3870 elif enabled arm; then
3871
3872     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3873     enabled thumb && check_cflags -mthumb || check_cflags -marm
3874
3875     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3876         enable vfp_args
3877     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3878         case "${cross_prefix:-$cc}" in
3879             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3880             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3881 __asm__ (".eabi_attribute 28, 1");
3882 int main(void) { return 0; }
3883 EOF
3884         esac
3885         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3886     fi
3887
3888     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3889     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3890     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3891     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3892     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3893     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3894
3895     [ $target_os = linux ] || [ $target_os = android ] ||
3896         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3897             $ARCH_EXT_LIST_ARM
3898
3899     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3900
3901     check_as <<EOF && enable as_dn_directive
3902 ra .dn d0.i16
3903 .unreq ra
3904 EOF
3905
3906     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3907
3908 elif enabled mips; then
3909
3910     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3911
3912 elif enabled parisc; then
3913
3914     if enabled gcc; then
3915         case $($cc -dumpversion) in
3916             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3917         esac
3918     fi
3919
3920 elif enabled ppc; then
3921
3922     enable local_aligned_8 local_aligned_16
3923
3924     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3925     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3926     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3927     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3928
3929     # AltiVec flags: The FSF version of GCC differs from the Apple version
3930     if enabled altivec; then
3931         check_cflags -maltivec -mabi=altivec &&
3932         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3933         check_cflags -faltivec
3934
3935         # check if our compiler supports Motorola AltiVec C API
3936         check_cc <<EOF || disable altivec
3937 $inc_altivec_h
3938 int main(void) {
3939     vector signed int v1 = (vector signed int) { 0 };
3940     vector signed int v2 = (vector signed int) { 1 };
3941     v1 = vec_add(v1, v2);
3942     return 0;
3943 }
3944 EOF
3945
3946         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3947     fi
3948
3949 elif enabled x86; then
3950
3951     check_builtin rdtsc    intrin.h   "__rdtsc()"
3952     check_builtin mm_empty mmintrin.h "_mm_empty()"
3953
3954     enable local_aligned_8 local_aligned_16
3955
3956     # check whether EBP is available on x86
3957     # As 'i' is stored on the stack, this program will crash
3958     # if the base pointer is used to access it because the
3959     # base pointer is cleared in the inline assembly code.
3960     check_exec_crash <<EOF && enable ebp_available
3961 volatile int i=0;
3962 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3963 return i;
3964 EOF
3965
3966     # check whether EBX is available on x86
3967     check_inline_asm ebx_available '""::"b"(0)' &&
3968         check_inline_asm ebx_available '"":::"%ebx"'
3969
3970     # check whether xmm clobbers are supported
3971     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3972
3973     # check whether binutils is new enough to compile SSSE3/MMXEXT
3974     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3975     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3976
3977     if ! disabled_any asm mmx yasm; then
3978         if check_cmd $yasmexe --version; then
3979             enabled x86_64 && yasm_extra="-m amd64"
3980             yasm_debug="-g dwarf2"
3981         elif check_cmd nasm -v; then
3982             yasmexe=nasm
3983             yasm_debug="-g -F dwarf"
3984             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3985         fi
3986
3987         YASMFLAGS="-f $objformat $yasm_extra"
3988         enabled pic               && append YASMFLAGS "-DPIC"
3989         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3990         case "$objformat" in
3991             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3992         esac
3993
3994         check_yasm "movbe ecx, [5]" && enable yasm ||
3995             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3996         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
3997         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
3998         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3999         check_yasm "CPU amdnop" || disable cpunop
4000     fi
4001
4002     case "$cpu" in
4003         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4004             disable fast_clz
4005         ;;
4006     esac
4007
4008 fi
4009
4010 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4011
4012 check_ldflags -Wl,--as-needed
4013
4014 if check_func dlopen; then
4015     ldl=
4016 elif check_func dlopen -ldl; then
4017     ldl=-ldl
4018 fi
4019
4020 if ! disabled network; then
4021     check_func getaddrinfo $network_extralibs
4022     check_func getservbyport $network_extralibs
4023     check_func inet_aton $network_extralibs
4024
4025     check_type netdb.h "struct addrinfo"
4026     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4027     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4028     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4029     check_type poll.h "struct pollfd"
4030     check_type netinet/sctp.h "struct sctp_event_subscribe"
4031     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4032     check_type netinet/in.h "struct sockaddr_in6"
4033     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4034     check_type "sys/types.h sys/socket.h" socklen_t
4035
4036     # Prefer arpa/inet.h over winsock2
4037     if check_header arpa/inet.h ; then
4038         check_func closesocket
4039     elif check_header winsock2.h ; then
4040         check_func_headers winsock2.h closesocket -lws2 &&
4041             network_extralibs="-lws2" ||
4042         { check_func_headers winsock2.h closesocket -lws2_32 &&
4043             network_extralibs="-lws2_32"; } || disable winsock2_h network
4044         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4045
4046         check_type ws2tcpip.h socklen_t
4047         check_type ws2tcpip.h "struct addrinfo"
4048         check_type ws2tcpip.h "struct group_source_req"
4049         check_type ws2tcpip.h "struct ip_mreq_source"
4050         check_type ws2tcpip.h "struct ipv6_mreq"
4051         check_type winsock2.h "struct pollfd"
4052         check_struct winsock2.h "struct sockaddr" sa_len
4053         check_type ws2tcpip.h "struct sockaddr_in6"
4054         check_type ws2tcpip.h "struct sockaddr_storage"
4055     else
4056         disable network
4057     fi
4058 fi
4059
4060 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4061 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4062 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4063 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4064
4065 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4066 check_func  ${malloc_prefix}memalign            && enable memalign
4067 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4068
4069 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4070     check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4071
4072 check_func  fcntl
4073 check_func  fork
4074 check_func  gethrtime
4075 check_func  getopt
4076 check_func  getrusage
4077 check_func  gettimeofday
4078 check_func  gmtime_r
4079 check_func  isatty
4080 check_func  localtime_r
4081 check_func  mach_absolute_time
4082 check_func  mkstemp
4083 check_func  mmap
4084 check_func  mprotect
4085 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4086 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4087 check_func  sched_getaffinity
4088 check_func  setrlimit
4089 check_func  strerror_r
4090 check_func  strptime
4091 check_func  sysconf
4092 check_func  sysctl
4093 check_func  usleep
4094
4095 check_func_headers io.h setmode
4096 check_func_headers stdlib.h getenv
4097
4098 check_func_headers windows.h CoTaskMemFree -lole32
4099 check_func_headers windows.h GetProcessAffinityMask
4100 check_func_headers windows.h GetProcessTimes
4101 check_func_headers windows.h GetSystemTimeAsFileTime
4102 check_func_headers windows.h MapViewOfFile
4103 check_func_headers windows.h SetConsoleTextAttribute
4104 check_func_headers windows.h Sleep
4105 check_func_headers windows.h VirtualAlloc
4106 check_struct windows.h "CONDITION_VARIABLE" Ptr
4107
4108 check_header direct.h
4109 check_header dlfcn.h
4110 check_header dxva.h
4111 check_header dxva2api.h
4112 check_header io.h
4113 check_header mach/mach_time.h
4114 check_header malloc.h
4115 check_header poll.h
4116 check_header sys/mman.h
4117 check_header sys/param.h
4118 check_header sys/resource.h
4119 check_header sys/select.h
4120 check_header sys/time.h
4121 check_header sys/un.h
4122 check_header unistd.h
4123 check_header vdpau/vdpau.h
4124 check_header vdpau/vdpau_x11.h
4125 check_header VideoDecodeAcceleration/VDADecoder.h
4126 check_header windows.h
4127 check_header X11/extensions/XvMClib.h
4128
4129 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4130 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4131 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4132
4133 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4134
4135 if ! disabled w32threads && ! enabled pthreads; then
4136     check_func_headers "windows.h process.h" _beginthreadex &&
4137         enable w32threads || disable w32threads
4138 fi
4139
4140 # check for some common methods of building with pthread support
4141 # do this before the optional library checks as some of them require pthreads
4142 if ! disabled pthreads && ! enabled w32threads; then
4143     enable pthreads
4144     if check_func pthread_join -pthread; then
4145         add_cflags -pthread
4146         add_extralibs -pthread
4147     elif check_func pthread_join -pthreads; then
4148         add_cflags -pthreads
4149         add_extralibs -pthreads
4150     elif check_func pthread_join -lpthreadGC2; then
4151         add_extralibs -lpthreadGC2
4152     elif check_lib pthread.h pthread_join -lpthread; then
4153         :
4154     elif ! check_func pthread_join; then
4155         disable pthreads
4156     fi
4157 fi
4158
4159 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4160 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4161
4162 check_lib math.h sin -lm && LIBM="-lm"
4163 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4164
4165 atan2f_args=2
4166 ldexpf_args=2
4167 powf_args=2
4168
4169 for func in $MATH_FUNCS; do
4170     eval check_mathfunc $func \${${func}_args:-1}
4171 done
4172
4173 # these are off by default, so fail if requested and not available
4174 enabled avisynth          && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
4175                                { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
4176                                die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4177 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4178 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4179 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4180 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4181 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4182 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4183 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4184 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4185                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4186                                done || die "ERROR: libgsm not found"; }
4187 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4188 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4189 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4190 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4191 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4192 enabled libopenjpeg       && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4193                                { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4194 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4195 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4196 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4197 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4198 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4199 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4200 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4201 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4202 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4203 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4204 enabled libvpx            && {
4205     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4206                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4207     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
4208                                     die "ERROR: libvpx encoder version must be >=0.9.6"; }
4209     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4210     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4211 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4212 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4213 enabled libx264           && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4214                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4215                                die "ERROR: libx264 version must be >= 0.118."; }
4216 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4217                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4218                                die "ERROR: libx265 version must be >= 17."; }
4219 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4220 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4221 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4222                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4223                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4224                                die "ERROR: openssl not found"; }
4225
4226 if enabled gnutls; then
4227     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4228     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4229 fi
4230
4231 # libdc1394 check
4232 if enabled libdc1394; then
4233     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4234         enable libdc1394_2; } ||
4235     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4236         enable libdc1394_1; } ||
4237     die "ERROR: No version of libdc1394 found "
4238 fi
4239
4240 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4241     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4242     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4243     enable sdl
4244 fi
4245
4246 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4247 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4248
4249 check_header linux/fb.h
4250 check_header linux/videodev2.h
4251 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4252
4253 check_header sys/videoio.h
4254
4255 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4256 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4257 # w32api 3.12 had it defined wrong
4258 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4259
4260 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4261 { check_header dev/bktr/ioctl_meteor.h &&
4262   check_header dev/bktr/ioctl_bt848.h; } ||
4263 { check_header machine/ioctl_meteor.h &&
4264   check_header machine/ioctl_bt848.h; } ||
4265 { check_header dev/video/meteor/ioctl_meteor.h &&
4266   check_header dev/video/bktr/ioctl_bt848.h; } ||
4267 check_header dev/ic/bt8xx.h
4268
4269 check_header sndio.h
4270 check_header sys/soundcard.h
4271 check_header soundcard.h
4272
4273 enabled_any alsa_indev alsa_outdev &&
4274     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4275
4276 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4277     check_func jack_port_get_latency_range -ljack
4278
4279 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4280
4281 if enabled libcdio; then
4282     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4283     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4284 fi
4285
4286 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4287
4288 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4289     check_pkg_config xcb xcb/xcb.h xcb_connect || {
4290         enabled libxcb && die "ERROR: libxcb not found";
4291     } && disable x11grab && enable libxcb
4292
4293     disabled libxcb_shm ||
4294         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4295             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4296         } && check_header sys/shm.h && enable libxcb_shm
4297
4298     disabled libxcb_xfixes ||
4299         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4300             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4301         } && enable libxcb_xfixes
4302
4303     add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4304     add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4305 fi
4306
4307 if enabled x11grab; then
4308     enabled xlib || die "ERROR: Xlib not found"
4309     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4310     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4311 fi
4312
4313 enabled vdpau &&
4314     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4315     disable vdpau
4316
4317 enabled vdpau && enabled xlib &&
4318     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4319     prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4320     enable vdpau_x11
4321
4322 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4323
4324 # add some useful compiler flags if supported
4325 check_cflags -Wdeclaration-after-statement
4326 check_cflags -Wall
4327 check_cflags -Wdisabled-optimization
4328 check_cflags -Wpointer-arith
4329 check_cflags -Wredundant-decls
4330 check_cflags -Wcast-qual
4331 check_cflags -Wwrite-strings
4332 check_cflags -Wtype-limits
4333 check_cflags -Wundef
4334 check_cflags -Wmissing-prototypes
4335 check_cflags -Wstrict-prototypes
4336 enabled extra_warnings && check_cflags -Winline
4337
4338 check_disable_warning(){
4339     warning_flag=-W${1#-Wno-}
4340     test_cflags $warning_flag && add_cflags $1
4341 }
4342
4343 check_disable_warning -Wno-parentheses
4344 check_disable_warning -Wno-switch
4345 check_disable_warning -Wno-format-zero-length
4346 check_disable_warning -Wno-pointer-sign
4347
4348 # add some linker flags
4349 check_ldflags -Wl,--warn-common
4350 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4351 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4352 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4353
4354 # add some strip flags
4355 # -wN '..@*' is more selective than -x, but not available everywhere.
4356 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4357
4358 enabled neon_clobber_test &&
4359     check_ldflags -Wl,--wrap,avcodec_open2              \
4360                   -Wl,--wrap,avcodec_decode_audio4      \
4361                   -Wl,--wrap,avcodec_decode_video2      \
4362                   -Wl,--wrap,avcodec_decode_subtitle2   \
4363                   -Wl,--wrap,avcodec_encode_audio2      \
4364                   -Wl,--wrap,avcodec_encode_video2      \
4365                   -Wl,--wrap,avcodec_encode_subtitle    \
4366                   -Wl,--wrap,avresample_convert ||
4367     disable neon_clobber_test
4368
4369 enabled xmm_clobber_test &&
4370     check_ldflags -Wl,--wrap,avcodec_open2              \
4371                   -Wl,--wrap,avcodec_decode_audio4      \
4372                   -Wl,--wrap,avcodec_decode_video2      \
4373                   -Wl,--wrap,avcodec_decode_subtitle2   \
4374                   -Wl,--wrap,avcodec_encode_audio2      \
4375                   -Wl,--wrap,avcodec_encode_video2      \
4376                   -Wl,--wrap,avcodec_encode_subtitle    \
4377                   -Wl,--wrap,avresample_convert         \
4378                   -Wl,--wrap,sws_scale ||
4379     disable xmm_clobber_test
4380
4381 echo "X{};" > $TMPV
4382 if test_ldflags -Wl,--version-script,$TMPV; then
4383     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4384     check_cc <<EOF && enable symver_asm_label
4385 void ff_foo(void) __asm__ ("av_foo@VERSION");
4386 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4387 EOF
4388     check_cc <<EOF && enable symver_gnu_asm
4389 __asm__(".symver ff_foo,av_foo@VERSION");
4390 void ff_foo(void) {}
4391 EOF
4392 fi
4393
4394 if [ -z "$optflags" ]; then
4395     if enabled small; then
4396         optflags=$cflags_size
4397     elif enabled optimizations; then
4398         optflags=$cflags_speed
4399     else
4400         optflags=$cflags_noopt
4401     fi
4402 fi
4403
4404 check_optflags(){
4405     check_cflags "$@"
4406     enabled lto && check_ldflags "$@"
4407 }
4408
4409
4410 if enabled lto; then
4411     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4412     check_cflags  -flto
4413     check_ldflags -flto $cpuflags
4414 fi
4415
4416 check_optflags $optflags
4417 check_optflags -fno-math-errno
4418 check_optflags -fno-signed-zeros
4419
4420 if enabled icc; then
4421     # Just warnings, no remarks
4422     check_cflags -w1
4423     # -wd: Disable following warnings
4424     # 144, 167, 556: -Wno-pointer-sign
4425     # 1292: attribute "foo" ignored
4426     # 1419: external declaration in primary source file
4427     # 10006: ignoring unknown option -fno-signed-zeros
4428     # 10148: ignoring unknown option -Wno-parentheses
4429     # 10156: ignoring option '-W'; no argument required
4430     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4431     # 11030: Warning unknown option --as-needed
4432     # 10156: ignoring option '-export'; no argument required
4433     check_ldflags -wd10156,11030
4434     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4435     enable ebp_available
4436     if enabled x86_32; then
4437         icc_version=$($cc -dumpversion)
4438         test ${icc_version%%.*} -ge 11 &&
4439             check_cflags -falign-stack=maintain-16-byte ||
4440             disable aligned_stack
4441     fi
4442 elif enabled ccc; then
4443     # disable some annoying warnings
4444     add_cflags -msg_disable bitnotint
4445     add_cflags -msg_disable mixfuncvoid
4446     add_cflags -msg_disable nonstandcast
4447     add_cflags -msg_disable unsupieee
4448 elif enabled gcc; then
4449     check_optflags -fno-tree-vectorize
4450     check_cflags -Werror=implicit-function-declaration
4451     check_cflags -Werror=missing-prototypes
4452     check_cflags -Werror=return-type
4453     check_cflags -Werror=declaration-after-statement
4454     check_cflags -Werror=vla
4455     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4456 elif enabled llvm_gcc; then
4457     check_cflags -mllvm -stack-alignment=16
4458 elif enabled clang; then
4459     check_cflags -mllvm -stack-alignment=16
4460     check_cflags -Qunused-arguments
4461     check_cflags -Werror=implicit-function-declaration
4462     check_cflags -Werror=missing-prototypes
4463     check_cflags -Werror=return-type
4464 elif enabled cparser; then
4465     add_cflags -Wno-missing-variable-declarations
4466     add_cflags -Wno-empty-statement
4467 elif enabled armcc; then
4468     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4469     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4470     # 2523: use of inline assembly is deprecated
4471     add_cflags -W${armcc_opt},--diag_suppress=2523
4472     add_cflags -W${armcc_opt},--diag_suppress=1207
4473     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4474     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4475     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4476     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4477 elif enabled tms470; then
4478     add_cflags -pds=824 -pds=837
4479     disable inline_asm
4480 elif enabled pathscale; then
4481     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4482 elif enabled_any msvc icl; then
4483     enabled x86_32 && disable aligned_stack
4484     enabled_all x86_32 debug && add_cflags -Oy-
4485     enabled debug && add_ldflags -debug
4486     enable pragma_deprecated
4487     if enabled icl; then
4488         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4489         # (correctly) on icl 13.x.
4490         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4491             add_cflags -Qansi-alias
4492         # icl will pass the inline asm tests but inline asm is currently
4493         # not supported (build will fail)
4494         disable inline_asm
4495     fi
4496 fi
4497
4498 case $as_type in
4499     clang)
4500         add_asflags -Qunused-arguments
4501     ;;
4502 esac
4503
4504 case $ld_type in
4505     clang)
4506         check_ldflags -Qunused-arguments
4507     ;;
4508 esac
4509
4510 case $target_os in
4511     osf1)
4512         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4513     ;;
4514     plan9)
4515         add_cppflags -Dmain=plan9_main
4516     ;;
4517 esac
4518
4519 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4520
4521 check_deps $CONFIG_LIST       \
4522            $CONFIG_EXTRA      \
4523            $HAVE_LIST         \
4524            $ALL_COMPONENTS    \
4525
4526 enabled_all dxva2 CoTaskMemFree &&
4527     prepend avconv_libs $($ldflags_filter "-lole32") &&
4528     enable dxva2_lib
4529
4530 ! enabled_any memalign posix_memalign aligned_malloc &&
4531     enabled simd_align_16 && enable memalign_hack
4532
4533 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4534
4535 for thread in $THREADS_LIST; do
4536     if enabled $thread; then
4537         test -n "$thread_type" &&
4538             die "ERROR: Only one thread type must be selected." ||
4539             thread_type="$thread"
4540     fi
4541 done
4542
4543 enabled zlib && add_cppflags -DZLIB_CONST
4544
4545 # conditional library dependencies, in linking order
4546 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
4547 enabled resample_filter && prepend avfilter_deps "avresample"
4548 enabled scale_filter    && prepend avfilter_deps "swscale"
4549
4550 enabled opus_decoder    && prepend avcodec_deps "avresample"
4551
4552 expand_deps(){
4553     lib_deps=${1}_deps
4554     eval "deps=\$$lib_deps"
4555     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4556     unique $lib_deps
4557 }
4558
4559 map 'expand_deps $v' $LIBRARY_LIST
4560
4561 echo "install prefix            $prefix"
4562 echo "source path               $source_path"
4563 echo "C compiler                $cc"
4564 echo "C library                 $libc_type"
4565 if test "$host_cc" != "$cc"; then
4566     echo "host C compiler           $host_cc"
4567     echo "host C library            $host_libc_type"
4568 fi
4569 echo "ARCH                      $arch ($cpu)"
4570 if test "$build_suffix" != ""; then
4571     echo "build suffix              $build_suffix"
4572 fi
4573 if test "$extra_version" != ""; then
4574     echo "version string suffix     $extra_version"
4575 fi
4576 echo "big-endian                ${bigendian-no}"
4577 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4578 if enabled x86; then
4579     echo "${yasmexe}                      ${yasm-no}"
4580     echo "MMX enabled               ${mmx-no}"
4581     echo "MMXEXT enabled            ${mmxext-no}"
4582     echo "3DNow! enabled            ${amd3dnow-no}"
4583     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4584     echo "SSE enabled               ${sse-no}"
4585     echo "SSSE3 enabled             ${ssse3-no}"
4586     echo "AVX enabled               ${avx-no}"
4587     echo "XOP enabled               ${xop-no}"
4588     echo "FMA3 enabled              ${fma3-no}"
4589     echo "FMA4 enabled              ${fma4-no}"
4590     echo "i686 features enabled     ${i686-no}"
4591     echo "CMOV is fast              ${fast_cmov-no}"
4592     echo "EBX available             ${ebx_available-no}"
4593     echo "EBP available             ${ebp_available-no}"
4594 fi
4595 if enabled aarch64; then
4596     echo "NEON enabled              ${neon-no}"
4597     echo "VFP enabled               ${vfp-no}"
4598 fi
4599 if enabled arm; then
4600     echo "ARMv5TE enabled           ${armv5te-no}"
4601     echo "ARMv6 enabled             ${armv6-no}"
4602     echo "ARMv6T2 enabled           ${armv6t2-no}"
4603     echo "VFP enabled               ${vfp-no}"
4604     echo "NEON enabled              ${neon-no}"
4605 fi
4606 if enabled ppc; then
4607     echo "AltiVec enabled           ${altivec-no}"
4608     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4609     echo "dcbzl available           ${dcbzl-no}"
4610 fi
4611 echo "debug symbols             ${debug-no}"
4612 echo "optimize for size         ${small-no}"
4613 echo "optimizations             ${optimizations-no}"
4614 echo "static                    ${static-no}"
4615 echo "shared                    ${shared-no}"
4616 echo "new filter support        ${avfilter-no}"
4617 echo "network support           ${network-no}"
4618 echo "threading support         ${thread_type-no}"
4619 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4620 echo "SDL support               ${sdl-no}"
4621 test -n "$random_seed" &&
4622     echo "random seed               ${random_seed}"
4623 echo
4624
4625 echo "External libraries:"
4626 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4627 echo
4628
4629 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4630     echo "Enabled ${type}s:"
4631     eval list=\$$(toupper $type)_LIST
4632     print_enabled '_*' $list | print_3_columns
4633     echo
4634 done
4635
4636 license="LGPL version 2.1 or later"
4637 if enabled nonfree; then
4638     license="nonfree and unredistributable"
4639 elif enabled gplv3; then
4640     license="GPL version 3 or later"
4641 elif enabled lgplv3; then
4642     license="LGPL version 3 or later"
4643 elif enabled gpl; then
4644     license="GPL version 2 or later"
4645 fi
4646
4647 echo "License: $license"
4648
4649 echo "Creating config.mak and config.h..."
4650
4651 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4652
4653 config_files="$TMPH config.mak"
4654
4655 cat > config.mak <<EOF
4656 # Automatically generated by configure - do not modify!
4657 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4658 prefix=$prefix
4659 LIBDIR=\$(DESTDIR)$libdir
4660 SHLIBDIR=\$(DESTDIR)$shlibdir
4661 INCDIR=\$(DESTDIR)$incdir
4662 BINDIR=\$(DESTDIR)$bindir
4663 DATADIR=\$(DESTDIR)$datadir
4664 DOCDIR=\$(DESTDIR)$docdir
4665 MANDIR=\$(DESTDIR)$mandir
4666 SRC_PATH=$source_path
4667 CC_IDENT=$cc_ident
4668 ARCH=$arch
4669 INTRINSICS=$intrinsics
4670 CC=$cc
4671 AS=$as
4672 LD=$ld
4673 DEPCC=$dep_cc
4674 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4675 DEPAS=$as
4676 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4677 YASM=$yasmexe
4678 DEPYASM=$yasmexe
4679 AR=$ar
4680 ARFLAGS=$arflags
4681 AR_O=$ar_o
4682 RANLIB=$ranlib
4683 STRIP=$strip
4684 LN_S=$ln_s
4685 CPPFLAGS=$CPPFLAGS
4686 CFLAGS=$CFLAGS
4687 ASFLAGS=$ASFLAGS
4688 AS_C=$AS_C
4689 AS_O=$AS_O
4690 CC_C=$CC_C
4691 CC_E=$CC_E
4692 CC_O=$CC_O
4693 LD_O=$LD_O
4694 LD_LIB=$LD_LIB
4695 LD_PATH=$LD_PATH
4696 DLLTOOL=$dlltool
4697 LDFLAGS=$LDFLAGS
4698 LDEXEFLAGS=$LDEXEFLAGS
4699 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4700 STRIPFLAGS=$STRIPFLAGS
4701 YASMFLAGS=$YASMFLAGS
4702 BUILDSUF=$build_suffix
4703 FULLNAME=$FULLNAME
4704 LIBPREF=$LIBPREF
4705 LIBSUF=$LIBSUF
4706 LIBNAME=$LIBNAME
4707 SLIBPREF=$SLIBPREF
4708 SLIBSUF=$SLIBSUF
4709 EXESUF=$EXESUF
4710 EXTRA_VERSION=$extra_version
4711 CCDEP=$CCDEP
4712 CCDEP_FLAGS=$CCDEP_FLAGS
4713 ASDEP=$ASDEP
4714 ASDEP_FLAGS=$ASDEP_FLAGS
4715 CC_DEPFLAGS=$CC_DEPFLAGS
4716 AS_DEPFLAGS=$AS_DEPFLAGS
4717 HOSTCC=$host_cc
4718 HOSTLD=$host_ld
4719 HOSTCFLAGS=$host_cflags
4720 HOSTCPPFLAGS=$host_cppflags
4721 HOSTEXESUF=$HOSTEXESUF
4722 HOSTLDFLAGS=$host_ldflags
4723 HOSTLIBS=$host_libs
4724 DEPHOSTCC=$host_cc
4725 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4726 HOSTCCDEP=$HOSTCCDEP
4727 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4728 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4729 HOSTCC_C=$HOSTCC_C
4730 HOSTCC_O=$HOSTCC_O
4731 HOSTLD_O=$HOSTLD_O
4732 TARGET_EXEC=$target_exec $target_exec_args
4733 TARGET_PATH=$target_path
4734 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4735 CFLAGS-avplay=$sdl_cflags
4736 ZLIB=$($ldflags_filter -lz)
4737 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4738 EXTRALIBS=$extralibs
4739 COMPAT_OBJS=$compat_objs
4740 EXEOBJS=$exeobjs
4741 INSTALL=install
4742 LIBTARGET=${LIBTARGET}
4743 SLIBNAME=${SLIBNAME}
4744 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4745 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4746 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4747 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4748 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4749 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4750 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4751 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4752 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4753 EOF
4754
4755 get_version(){
4756     lcname=lib${1}
4757     name=$(toupper $lcname)
4758     file=$source_path/$lcname/version.h
4759     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4760     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4761     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4762     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4763     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4764 }
4765
4766 map 'get_version $v' $LIBRARY_LIST
4767
4768 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
4769
4770 print_program_libs(){
4771     eval "program_libs=\$${1}_libs"
4772     eval echo "LIBS-${1}=${program_libs}" >> config.mak
4773 }
4774
4775 map 'print_program_libs $v' $PROGRAM_LIST
4776
4777 cat > $TMPH <<EOF
4778 /* Automatically generated by configure - do not modify! */
4779 #ifndef LIBAV_CONFIG_H
4780 #define LIBAV_CONFIG_H
4781 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4782 #define LIBAV_LICENSE "$(c_escape $license)"
4783 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4784 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4785 #define restrict $_restrict
4786 #define EXTERN_PREFIX "${extern_prefix}"
4787 #define EXTERN_ASM ${extern_prefix}
4788 #define SLIBSUF "$SLIBSUF"
4789 EOF
4790
4791 test -n "$malloc_prefix" &&
4792     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4793
4794 if enabled yasm; then
4795     append config_files $TMPASM
4796     printf '' >$TMPASM
4797 fi
4798
4799 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4800
4801 print_config ARCH_   "$config_files" $ARCH_LIST
4802 print_config HAVE_   "$config_files" $HAVE_LIST
4803 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4804                                      $CONFIG_EXTRA      \
4805                                      $ALL_COMPONENTS    \
4806
4807 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4808
4809 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4810 cp_if_changed $TMPH config.h
4811 touch .config
4812
4813 enabled yasm && cp_if_changed $TMPASM config.asm
4814
4815 cat > $TMPH <<EOF
4816 /* Generated by ffconf */
4817 #ifndef AVUTIL_AVCONFIG_H
4818 #define AVUTIL_AVCONFIG_H
4819 EOF
4820
4821 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4822
4823 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4824
4825 cp_if_changed $TMPH libavutil/avconfig.h
4826
4827 test -n "$WARNINGS" && printf "\n$WARNINGS"
4828
4829 # build pkg-config files
4830
4831 lib_version(){
4832     eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
4833 }
4834
4835 pkgconfig_generate(){
4836     name=$1
4837     shortname=${name#lib}${build_suffix}
4838     comment=$2
4839     version=$3
4840     libs=$4
4841     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
4842     requires=${requires%, }
4843     enabled ${name#lib} || return 0
4844     mkdir -p $name
4845     cat <<EOF > $name/$name.pc
4846 prefix=$prefix
4847 exec_prefix=\${prefix}
4848 libdir=$libdir
4849 includedir=$incdir
4850
4851 Name: $name
4852 Description: $comment
4853 Version: $version
4854 Requires: $(enabled shared || echo $requires)
4855 Requires.private: $(enabled shared && echo $requires)
4856 Conflicts:
4857 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4858 Libs.private: $(enabled shared && echo $libs)
4859 Cflags: -I\${includedir}
4860 EOF
4861     cat <<EOF > $name/$name-uninstalled.pc
4862 prefix=
4863 exec_prefix=
4864 libdir=\${pcfiledir}
4865 includedir=${source_path}
4866
4867 Name: $name
4868 Description: $comment
4869 Version: $version
4870 Requires: $requires
4871 Conflicts:
4872 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4873 Cflags: -I\${includedir}
4874 EOF
4875 }
4876
4877 pkgconfig_generate libavutil     "Libav utility library"          "$LIBAVUTIL_VERSION"     "$LIBRT $LIBM"
4878 pkgconfig_generate libavcodec    "Libav codec library"            "$LIBAVCODEC_VERSION"    "$extralibs"
4879 pkgconfig_generate libavformat   "Libav container format library" "$LIBAVFORMAT_VERSION"   "$extralibs"
4880 pkgconfig_generate libavdevice   "Libav device handling library"  "$LIBAVDEVICE_VERSION"   "$extralibs"
4881 pkgconfig_generate libavfilter   "Libav video filtering library"  "$LIBAVFILTER_VERSION"   "$extralibs"
4882 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
4883 pkgconfig_generate libswscale    "Libav image rescaling library"  "$LIBSWSCALE_VERSION"    "$LIBM"