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
  90 Licensing options:
  91   --enable-gpl             allow use of GPL code, the resulting libs
  92                            and binaries will be under GPL [no]
  93   --enable-version3        upgrade (L)GPL to version 3 [no]
  94   --enable-nonfree         allow use of nonfree code, the resulting libs
  95                            and binaries will be unredistributable [no]
  96
  97 Configuration options:
  98   --disable-static         do not build static libraries [no]
  99   --enable-shared          build shared libraries [no]
 100   --enable-small           optimize for size instead of speed
 101   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 102   --enable-gray            enable full grayscale support (slower color)
 103   --disable-swscale-alpha  disable alpha channel support in swscale
 104   --disable-all            disable building components, libraries and programs
 105
 106 Program options:
 107   --disable-programs       do not build command line programs
 108   --disable-avconv         disable avconv build
 109   --disable-avplay         disable avplay build
 110   --disable-avprobe        disable avprobe build
 111   --disable-avserver       disable avserver build
 112
 113 Component options:
 114   --disable-doc            do not build documentation
 115   --disable-avdevice       disable libavdevice build
 116   --disable-avcodec        disable libavcodec build
 117   --disable-avformat       disable libavformat build
 118   --disable-avutil         disable libavutil build
 119   --disable-swscale        disable libswscale build
 120   --disable-avfilter       disable video filter support [no]
 121   --disable-avresample     disable libavresample build [no]
 122   --disable-pthreads       disable pthreads [auto]
 123   --disable-w32threads     disable Win32 threads [auto]
 124   --disable-network        disable network support [no]
 125   --disable-dct            disable DCT code
 126   --disable-error-resilience disable error resilience code
 127   --disable-lsp            disable LSP code
 128   --disable-lzo            disable LZO decoder code
 129   --disable-mdct           disable MDCT code
 130   --disable-rdft           disable RDFT code
 131   --disable-fft            disable FFT code
 132
 133 Hardware accelerators:
 134   --enable-dxva2           enable DXVA2 code
 135   --enable-vaapi           enable VAAPI code
 136   --enable-vda             enable VDA code
 137   --enable-vdpau           enable VDPAU code
 138
 139 Individual component options:
 140   --disable-everything     disable all components listed below
 141   --disable-encoder=NAME   disable encoder NAME
 142   --enable-encoder=NAME    enable encoder NAME
 143   --disable-encoders       disable all encoders
 144   --disable-decoder=NAME   disable decoder NAME
 145   --enable-decoder=NAME    enable decoder NAME
 146   --disable-decoders       disable all decoders
 147   --disable-hwaccel=NAME   disable hwaccel NAME
 148   --enable-hwaccel=NAME    enable hwaccel NAME
 149   --disable-hwaccels       disable all hwaccels
 150   --disable-muxer=NAME     disable muxer NAME
 151   --enable-muxer=NAME      enable muxer NAME
 152   --disable-muxers         disable all muxers
 153   --disable-demuxer=NAME   disable demuxer NAME
 154   --enable-demuxer=NAME    enable demuxer NAME
 155   --disable-demuxers       disable all demuxers
 156   --enable-parser=NAME     enable parser NAME
 157   --disable-parser=NAME    disable parser NAME
 158   --disable-parsers        disable all parsers
 159   --enable-bsf=NAME        enable bitstream filter NAME
 160   --disable-bsf=NAME       disable bitstream filter NAME
 161   --disable-bsfs           disable all bitstream filters
 162   --enable-protocol=NAME   enable protocol NAME
 163   --disable-protocol=NAME  disable protocol NAME
 164   --disable-protocols      disable all protocols
 165   --enable-indev=NAME      enable input device NAME
 166   --disable-indev=NAME     disable input device NAME
 167   --disable-indevs         disable input devices
 168   --enable-outdev=NAME     enable output device NAME
 169   --disable-outdev=NAME    disable output device NAME
 170   --disable-outdevs        disable output devices
 171   --disable-devices        disable all devices
 172   --enable-filter=NAME     enable filter NAME
 173   --disable-filter=NAME    disable filter NAME
 174   --disable-filters        disable all filters
 175
 176 External library support:
 177   --enable-avisynth        enable reading of AviSynth script files [no]
 178   --enable-bzlib           enable bzlib [autodetect]
 179   --enable-frei0r          enable frei0r video filtering
 180   --enable-gnutls          enable gnutls [no]
 181   --enable-libcdio         enable audio CD grabbing with libcdio
 182   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 183                            and libraw1394 [no]
 184   --enable-libfaac         enable AAC encoding via libfaac [no]
 185   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
 186   --enable-libfreetype     enable libfreetype [no]
 187   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 188   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 189   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 190   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 191   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 192   --enable-libopencv       enable video filtering via libopencv [no]
 193   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 194   --enable-libopus         enable Opus decoding via libopus [no]
 195   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 196   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 197   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 198   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 199   --enable-libtheora       enable Theora encoding via libtheora [no]
 200   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 201   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 202   --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
 203   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 204   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
 205   --enable-libwebp         enable WebP encoding via libwebp [no]
 206   --enable-libx264         enable H.264 encoding via x264 [no]
 207   --enable-libx265         enable HEVC encoding via x265 [no]
 208   --enable-libxavs         enable AVS encoding via xavs [no]
 209   --enable-libxvid         enable Xvid encoding via xvidcore,
 210                            native MPEG-4/Xvid encoder exists [no]
 211   --enable-openssl         enable openssl [no]
 212   --enable-x11grab         enable X11 grabbing [no]
 213   --enable-zlib            enable zlib [autodetect]
 214
 215 Advanced options (experts only):
 216   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 217   --enable-cross-compile   assume a cross-compiler is used
 218   --sysroot=PATH           root of cross-build tree
 219   --sysinclude=PATH        location of cross-build system headers
 220   --target-os=OS           compiler targets OS [$target_os]
 221   --target-exec=CMD        command to run executables on target
 222   --target-path=DIR        path to view of build directory on target
 223   --target-samples=DIR     path to samples directory on target
 224   --toolchain=NAME         set tool defaults according to NAME
 225   --nm=NM                  use nm tool
 226   --ar=AR                  use archive tool AR [$ar_default]
 227   --as=AS                  use assembler AS [$as_default]
 228   --cc=CC                  use C compiler CC [$cc_default]
 229   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 230   --ld=LD                  use linker LD
 231   --host-cc=HOSTCC         use host C compiler HOSTCC
 232   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 233   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
 234   --host-ld=HOSTLD         use host linker HOSTLD
 235   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 236   --host-libs=HLIBS        use libs HLIBS when linking for host
 237   --host-os=OS             compiler host OS [$target_os]
 238   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 239   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 240   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 241   --extra-version=STRING   version string suffix []
 242   --optflags=OPTFLAGS      override optimization-related compiler flags
 243   --build-suffix=SUFFIX    library name suffix []
 244   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 245   --arch=ARCH              select architecture [$arch]
 246   --cpu=CPU                select the minimum required CPU (affects
 247                            instruction selection, may crash on older CPUs)
 248   --enable-pic             build position-independent code
 249   --enable-sram            allow use of on-chip SRAM
 250   --enable-thumb           compile for Thumb instruction set
 251   --disable-symver         disable symbol versioning
 252   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 253   --disable-safe-bitstream-reader
 254                            disable buffer boundary checking in bitreaders
 255                            (faster, but may crash)
 256   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 257   --enable-lto             use link-time optimization
 258
 259 Optimization options (experts only):
 260   --disable-asm            disable all assembler optimizations
 261   --disable-altivec        disable AltiVec optimizations
 262   --disable-amd3dnow       disable 3DNow! optimizations
 263   --disable-amd3dnowext    disable 3DNow! extended optimizations
 264   --disable-mmx            disable MMX optimizations
 265   --disable-mmxext         disable MMXEXT optimizations
 266   --disable-sse            disable SSE optimizations
 267   --disable-sse2           disable SSE2 optimizations
 268   --disable-sse3           disable SSE3 optimizations
 269   --disable-ssse3          disable SSSE3 optimizations
 270   --disable-sse4           disable SSE4 optimizations
 271   --disable-sse42          disable SSE4.2 optimizations
 272   --disable-avx            disable AVX optimizations
 273   --disable-xop            disable XOP optimizations
 274   --disable-fma3           disable FMA3 optimizations
 275   --disable-fma4           disable FMA4 optimizations
 276   --disable-avx2           disable AVX2 optimizations
 277   --disable-armv5te        disable armv5te optimizations
 278   --disable-armv6          disable armv6 optimizations
 279   --disable-armv6t2        disable armv6t2 optimizations
 280   --disable-vfp            disable VFP optimizations
 281   --disable-neon           disable NEON optimizations
 282   --disable-vis            disable VIS optimizations
 283   --disable-inline-asm     disable use of inline assembler
 284   --disable-yasm           disable use of yasm assembler
 285
 286 Developer options (useful when working on Libav itself):
 287   --disable-debug          disable debugging symbols
 288   --enable-debug=LEVEL     set the debug level [$debuglevel]
 289   --disable-optimizations  disable compiler optimizations
 290   --enable-extra-warnings  enable more compiler warnings
 291   --samples=PATH           location of test samples for FATE, if not set use
 292                            \$LIBAV_SAMPLES at make invocation time.
 293   --enable-neon-clobber-test check NEON registers for clobbering (should be
 294                            used only for debugging purposes)
 295   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 296                            should be used only for debugging purposes)
 297   --enable-random          randomly enable/disable components
 298   --disable-random
 299   --enable-random=LIST     randomly enable/disable specific components or
 300   --disable-random=LIST    component groups. LIST is a comma-separated list
 301                            of NAME[:PROB] entries where NAME is a component
 302                            (group) and PROB the probability associated with
 303                            NAME (default 0.5).
 304   --random-seed=VALUE      seed value for --enable/disable-random
 305
 306 NOTE: Object files are built at the place where configure is launched.
 307 EOF
 308   exit 0
 309 }
 310
 311 quotes='""'
 312
 313 log(){
 314     echo "$@" >> $logfile
 315 }
 316
 317 log_file(){
 318     log BEGIN $1
 319     pr -n -t $1 >> $logfile
 320     log END $1
 321 }
 322
 323 echolog(){
 324     log "$@"
 325     echo "$@"
 326 }
 327
 328 warn(){
 329     log "WARNING: $*"
 330     WARNINGS="${WARNINGS}WARNING: $*\n"
 331 }
 332
 333 die(){
 334     echolog "$@"
 335     cat <<EOF
 336
 337 If you think configure made a mistake, make sure you are using the latest
 338 version from Git.  If the latest version fails, report the problem to the
 339 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
 340 EOF
 341     if disabled logging; then
 342         cat <<EOF
 343 Rerun configure with logging enabled (do not use --disable-logging), and
 344 include the log this produces with your report.
 345 EOF
 346     else
 347         cat <<EOF
 348 Include the log file "$logfile" produced by configure as this will help
 349 solving the problem.
 350 EOF
 351     fi
 352     exit 1
 353 }
 354
 355 # Avoid locale weirdness, besides we really just want to translate ASCII.
 356 toupper(){
 357     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 358 }
 359
 360 tolower(){
 361     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 362 }
 363
 364 c_escape(){
 365     echo "$*" | sed 's/["\\]/\\\0/g'
 366 }
 367
 368 sh_quote(){
 369     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 370     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 371     echo "$v"
 372 }
 373
 374 cleanws(){
 375     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 376 }
 377
 378 filter(){
 379     pat=$1
 380     shift
 381     for v; do
 382         eval "case $v in $pat) echo $v ;; esac"
 383     done
 384 }
 385
 386 filter_out(){
 387     pat=$1
 388     shift
 389     for v; do
 390         eval "case $v in $pat) ;; *) echo $v ;; esac"
 391     done
 392 }
 393
 394 map(){
 395     m=$1
 396     shift
 397     for v; do eval $m; done
 398 }
 399
 400 add_suffix(){
 401     suffix=$1
 402     shift
 403     for v; do echo ${v}${suffix}; done
 404 }
 405
 406 set_all(){
 407     value=$1
 408     shift
 409     for var in $*; do
 410         eval $var=$value
 411     done
 412 }
 413
 414 set_weak(){
 415     value=$1
 416     shift
 417     for var; do
 418         eval : \${$var:=$value}
 419     done
 420 }
 421
 422 sanitize_var_name(){
 423     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
 424 }
 425
 426 set_safe(){
 427     var=$1
 428     shift
 429     eval $(sanitize_var_name "$var")='$*'
 430 }
 431
 432 get_safe(){
 433     eval echo \$$(sanitize_var_name "$1")
 434 }
 435
 436 pushvar(){
 437     for pvar in $*; do
 438         eval level=\${${pvar}_level:=0}
 439         eval ${pvar}_${level}="\$$pvar"
 440         eval ${pvar}_level=$(($level+1))
 441     done
 442 }
 443
 444 popvar(){
 445     for pvar in $*; do
 446         eval level=\${${pvar}_level:-0}
 447         test $level = 0 && continue
 448         eval level=$(($level-1))
 449         eval $pvar="\${${pvar}_${level}}"
 450         eval ${pvar}_level=$level
 451         eval unset ${pvar}_${level}
 452     done
 453 }
 454
 455 enable(){
 456     set_all yes $*
 457 }
 458
 459 disable(){
 460     set_all no $*
 461 }
 462
 463 enable_weak(){
 464     set_weak yes $*
 465 }
 466
 467 disable_weak(){
 468     set_weak no $*
 469 }
 470
 471 enable_safe(){
 472     for var; do
 473         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 474     done
 475 }
 476
 477 disable_safe(){
 478     for var; do
 479         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 480     done
 481 }
 482
 483 do_enable_deep(){
 484     for var; do
 485         enabled $var && continue
 486         eval sel="\$${var}_select"
 487         eval sgs="\$${var}_suggest"
 488         pushvar var sgs
 489         enable_deep $sel
 490         popvar sgs
 491         enable_deep_weak $sgs
 492         popvar var
 493     done
 494 }
 495
 496 enable_deep(){
 497     do_enable_deep $*
 498     enable $*
 499 }
 500
 501 enable_deep_weak(){
 502     for var; do
 503         disabled $var && continue
 504         pushvar var
 505         do_enable_deep $var
 506         popvar var
 507         enable_weak $var
 508     done
 509 }
 510
 511 enabled(){
 512     test "${1#!}" = "$1" && op== || op=!=
 513     eval test "x\$${1#!}" $op "xyes"
 514 }
 515
 516 disabled(){
 517     test "${1#!}" = "$1" && op== || op=!=
 518     eval test "x\$${1#!}" $op "xno"
 519 }
 520
 521 enabled_all(){
 522     for opt; do
 523         enabled $opt || return 1
 524     done
 525 }
 526
 527 disabled_all(){
 528     for opt; do
 529         disabled $opt || return 1
 530     done
 531 }
 532
 533 enabled_any(){
 534     for opt; do
 535         enabled $opt && return 0
 536     done
 537 }
 538
 539 disabled_any(){
 540     for opt; do
 541         disabled $opt && return 0
 542     done
 543     return 1
 544 }
 545
 546 set_default(){
 547     for opt; do
 548         eval : \${$opt:=\$${opt}_default}
 549     done
 550 }
 551
 552 is_in(){
 553     value=$1
 554     shift
 555     for var in $*; do
 556         [ $var = $value ] && return 0
 557     done
 558     return 1
 559 }
 560
 561 do_check_deps(){
 562     for cfg; do
 563         cfg="${cfg#!}"
 564         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 565         disabled ${cfg}_checking && continue
 566         enable ${cfg}_checking
 567         append allopts $cfg
 568
 569         eval dep_all="\$${cfg}_deps"
 570         eval dep_any="\$${cfg}_deps_any"
 571         eval dep_sel="\$${cfg}_select"
 572         eval dep_sgs="\$${cfg}_suggest"
 573         eval dep_ifa="\$${cfg}_if"
 574         eval dep_ifn="\$${cfg}_if_any"
 575
 576         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 577         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 578         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 579
 580         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 581         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 582         enabled_all  $dep_all || disable $cfg
 583         enabled_any  $dep_any || disable $cfg
 584         disabled_any $dep_sel && disable $cfg
 585
 586         if enabled $cfg; then
 587             enable_deep $dep_sel
 588             enable_deep_weak $dep_sgs
 589         fi
 590
 591         disable ${cfg}_checking
 592     done
 593 }
 594
 595 check_deps(){
 596     unset allopts
 597
 598     do_check_deps "$@"
 599
 600     for cfg in $allopts; do
 601         enabled $cfg || continue
 602         eval dep_extralibs="\$${cfg}_extralibs"
 603         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 604     done
 605 }
 606
 607 print_config(){
 608     pfx=$1
 609     files=$2
 610     shift 2
 611     map 'eval echo "$v \${$v:-no}"' "$@" |
 612     awk "BEGIN { split(\"$files\", files) }
 613         {
 614             c = \"$pfx\" toupper(\$1);
 615             v = \$2;
 616             sub(/yes/, 1, v);
 617             sub(/no/,  0, v);
 618             for (f in files) {
 619                 file = files[f];
 620                 if (file ~ /\\.h\$/) {
 621                     printf(\"#define %s %d\\n\", c, v) >>file;
 622                 } else if (file ~ /\\.asm\$/) {
 623                     printf(\"%%define %s %d\\n\", c, v) >>file;
 624                 } else if (file ~ /\\.mak\$/) {
 625                     n = -v ? \"\" : \"!\";
 626                     printf(\"%s%s=yes\\n\", n, c) >>file;
 627                 }
 628             }
 629         }"
 630 }
 631
 632 print_enabled(){
 633     suf=$1
 634     shift
 635     for v; do
 636         enabled $v && printf "%s\n" ${v%$suf};
 637     done
 638 }
 639
 640 append(){
 641     var=$1
 642     shift
 643     eval "$var=\"\$$var $*\""
 644 }
 645
 646 prepend(){
 647     var=$1
 648     shift
 649     eval "$var=\"$* \$$var\""
 650 }
 651
 652 add_cppflags(){
 653     append CPPFLAGS "$@"
 654 }
 655
 656 add_cflags(){
 657     append CFLAGS $($cflags_filter "$@")
 658 }
 659
 660 add_asflags(){
 661     append ASFLAGS $($asflags_filter "$@")
 662 }
 663
 664 add_ldflags(){
 665     append LDFLAGS $($ldflags_filter "$@")
 666 }
 667
 668 add_stripflags(){
 669     append STRIPFLAGS "$@"
 670 }
 671
 672 add_extralibs(){
 673     prepend extralibs $($ldflags_filter "$@")
 674 }
 675
 676 add_host_cppflags(){
 677     append host_cppflags "$@"
 678 }
 679
 680 add_host_cflags(){
 681     append host_cflags $($host_cflags_filter "$@")
 682 }
 683
 684 add_host_ldflags(){
 685     append host_ldflags $($host_ldflags_filter "$@")
 686 }
 687
 688 add_compat(){
 689     append compat_objs $1
 690     shift
 691     map 'add_cppflags -D$v' "$@"
 692 }
 693
 694 check_cmd(){
 695     log "$@"
 696     "$@" >> $logfile 2>&1
 697 }
 698
 699 cc_o(){
 700     eval printf '%s\\n' $CC_O
 701 }
 702
 703 cc_e(){
 704     eval printf '%s\\n' $CC_E
 705 }
 706
 707 check_cc(){
 708     log check_cc "$@"
 709     cat > $TMPC
 710     log_file $TMPC
 711     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 712 }
 713
 714 check_cpp(){
 715     log check_cpp "$@"
 716     cat > $TMPC
 717     log_file $TMPC
 718     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 719 }
 720
 721 as_o(){
 722     eval printf '%s\\n' $AS_O
 723 }
 724
 725 check_as(){
 726     log check_as "$@"
 727     cat > $TMPS
 728     log_file $TMPS
 729     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 730 }
 731
 732 check_inline_asm(){
 733     log check_inline_asm "$@"
 734     name="$1"
 735     code="$2"
 736     shift 2
 737     disable $name
 738     check_cc "$@" <<EOF && enable $name
 739 void foo(void){ __asm__ volatile($code); }
 740 EOF
 741 }
 742
 743 check_insn(){
 744     log check_insn "$@"
 745     check_inline_asm ${1}_inline "\"$2\""
 746     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 747 }
 748
 749 check_yasm(){
 750     log check_yasm "$@"
 751     echo "$1" > $TMPS
 752     log_file $TMPS
 753     shift 1
 754     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 755 }
 756
 757 ld_o(){
 758     eval printf '%s\\n' $LD_O
 759 }
 760
 761 check_ld(){
 762     log check_ld "$@"
 763     flags=$(filter_out '-l*' "$@")
 764     libs=$(filter '-l*' "$@")
 765     check_cc $($cflags_filter $flags) || return
 766     flags=$($ldflags_filter $flags)
 767     libs=$($ldflags_filter $libs)
 768     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 769 }
 770
 771 print_include(){
 772     hdr=$1
 773     test "${hdr%.h}" = "${hdr}" &&
 774         echo "#include $hdr"    ||
 775         echo "#include <$hdr>"
 776 }
 777
 778 check_code(){
 779     log check_code "$@"
 780     check=$1
 781     headers=$2
 782     code=$3
 783     shift 3
 784     {
 785         for hdr in $headers; do
 786             print_include $hdr
 787         done
 788         echo "int main(void) { $code; return 0; }"
 789     } | check_$check "$@"
 790 }
 791
 792 check_cppflags(){
 793     log check_cppflags "$@"
 794     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 795 int x;
 796 EOF
 797 }
 798
 799 test_cflags(){
 800     log test_cflags "$@"
 801     set -- $($cflags_filter "$@")
 802     check_cc "$@" <<EOF
 803 int x;
 804 EOF
 805 }
 806
 807 check_cflags(){
 808     log check_cflags "$@"
 809     test_cflags "$@" && add_cflags "$@"
 810 }
 811
 812 test_ldflags(){
 813     log test_ldflags "$@"
 814     check_ld "$@" <<EOF
 815 int main(void){ return 0; }
 816 EOF
 817 }
 818
 819 check_ldflags(){
 820     log check_ldflags "$@"
 821     test_ldflags "$@" && add_ldflags "$@"
 822 }
 823
 824 test_stripflags(){
 825     log test_stripflags "$@"
 826     # call check_cc to get a fresh TMPO
 827     check_cc <<EOF
 828 int main(void) { return 0; }
 829 EOF
 830     check_cmd $strip $STRIPFLAGS "$@" $TMPO
 831 }
 832
 833 check_stripflags(){
 834     log check_stripflags "$@"
 835     test_stripflags "$@" && add_stripflags "$@"
 836 }
 837
 838 check_header(){
 839     log check_header "$@"
 840     header=$1
 841     shift
 842     disable_safe $header
 843     check_cpp "$@" <<EOF && enable_safe $header
 844 #include <$header>
 845 int x;
 846 EOF
 847 }
 848
 849 check_func(){
 850     log check_func "$@"
 851     func=$1
 852     shift
 853     disable $func
 854     check_ld "$@" <<EOF && enable $func
 855 extern int $func();
 856 int main(void){ $func(); }
 857 EOF
 858 }
 859
 860 check_mathfunc(){
 861     log check_mathfunc "$@"
 862     func=$1
 863     narg=$2
 864     shift 2
 865     test $narg = 2 && args="f, g" || args="f"
 866     disable $func
 867     check_ld "$@" <<EOF && enable $func
 868 #include <math.h>
 869 float foo(float f, float g) { return $func($args); }
 870 int main(void){ return 0; }
 871 EOF
 872 }
 873
 874 check_func_headers(){
 875     log check_func_headers "$@"
 876     headers=$1
 877     funcs=$2
 878     shift 2
 879     {
 880         for hdr in $headers; do
 881             print_include $hdr
 882         done
 883         for func in $funcs; do
 884             echo "long check_$func(void) { return (long) $func; }"
 885         done
 886         echo "int main(void) { return 0; }"
 887     } | check_ld "$@" && enable $funcs && enable_safe $headers
 888 }
 889
 890 check_cpp_condition(){
 891     log check_cpp_condition "$@"
 892     header=$1
 893     condition=$2
 894     shift 2
 895     check_cpp "$@" <<EOF
 896 #include <$header>
 897 #if !($condition)
 898 #error "unsatisfied condition: $condition"
 899 #endif
 900 EOF
 901 }
 902
 903 check_lib(){
 904     log check_lib "$@"
 905     header="$1"
 906     func="$2"
 907     shift 2
 908     check_header $header && check_func $func "$@" && add_extralibs "$@"
 909 }
 910
 911 check_lib2(){
 912     log check_lib2 "$@"
 913     headers="$1"
 914     funcs="$2"
 915     shift 2
 916     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 917 }
 918
 919 check_pkg_config(){
 920     log check_pkg_config "$@"
 921     pkg="$1"
 922     headers="$2"
 923     funcs="$3"
 924     shift 3
 925     check_cmd $pkg_config --exists --print-errors $pkg || return
 926     pkg_cflags=$($pkg_config --cflags $pkg)
 927     pkg_libs=$($pkg_config --libs $pkg)
 928     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 929         set_safe ${pkg}_cflags $pkg_cflags   &&
 930         set_safe ${pkg}_libs   $pkg_libs
 931 }
 932
 933 check_exec(){
 934     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 935 }
 936
 937 check_exec_crash(){
 938     code=$(cat)
 939
 940     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 941     # are safe but may not be available everywhere.  Thus we use
 942     # raise(SIGTERM) instead.  The check is run in a subshell so we
 943     # can redirect the "Terminated" message from the shell.  SIGBUS
 944     # is not defined by standard C so it is used conditionally.
 945
 946     (check_exec "$@") >> $logfile 2>&1 <<EOF
 947 #include <signal.h>
 948 static void sighandler(int sig){
 949     raise(SIGTERM);
 950 }
 951 int foo(void){
 952     $code
 953 }
 954 int (*func_ptr)(void) = foo;
 955 int main(void){
 956     signal(SIGILL, sighandler);
 957     signal(SIGFPE, sighandler);
 958     signal(SIGSEGV, sighandler);
 959 #ifdef SIGBUS
 960     signal(SIGBUS, sighandler);
 961 #endif
 962     return func_ptr();
 963 }
 964 EOF
 965 }
 966
 967 check_type(){
 968     log check_type "$@"
 969     headers=$1
 970     type=$2
 971     shift 2
 972     disable_safe "$type"
 973     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
 974 }
 975
 976 check_struct(){
 977     log check_struct "$@"
 978     headers=$1
 979     struct=$2
 980     member=$3
 981     shift 3
 982     disable_safe "${struct}_${member}"
 983     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
 984         enable_safe "${struct}_${member}"
 985 }
 986
 987 check_builtin(){
 988     log check_builtin "$@"
 989     name=$1
 990     headers=$2
 991     builtin=$3
 992     shift 3
 993     disable "$name"
 994     check_code ld "$headers" "$builtin" "$@" && enable "$name"
 995 }
 996
 997 require(){
 998     name="$1"
 999     header="$2"
1000     func="$3"
1001     shift 3
1002     check_lib $header $func "$@" || die "ERROR: $name not found"
1003 }
1004
1005 require2(){
1006     name="$1"
1007     headers="$2"
1008     func="$3"
1009     shift 3
1010     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1011 }
1012
1013 require_pkg_config(){
1014     pkg="$1"
1015     check_pkg_config "$@" || die "ERROR: $pkg not found"
1016     add_cflags    $(get_safe ${pkg}_cflags)
1017     add_extralibs $(get_safe ${pkg}_libs)
1018 }
1019
1020 hostcc_e(){
1021     eval printf '%s\\n' $HOSTCC_E
1022 }
1023
1024 hostcc_o(){
1025     eval printf '%s\\n' $HOSTCC_O
1026 }
1027
1028 check_host_cc(){
1029     log check_host_cc "$@"
1030     cat > $TMPC
1031     log_file $TMPC
1032     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1033 }
1034
1035 check_host_cpp(){
1036     log check_host_cpp "$@"
1037     cat > $TMPC
1038     log_file $TMPC
1039     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1040 }
1041
1042 check_host_cppflags(){
1043     log check_host_cppflags "$@"
1044     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1045 int x;
1046 EOF
1047 }
1048
1049 check_host_cflags(){
1050     log check_host_cflags "$@"
1051     set -- $($host_cflags_filter "$@")
1052     check_host_cc "$@" <<EOF && append host_cflags "$@"
1053 int x;
1054 EOF
1055 }
1056
1057 check_host_cpp_condition(){
1058     log check_host_cpp_condition "$@"
1059     header=$1
1060     condition=$2
1061     shift 2
1062     check_host_cpp "$@" <<EOF
1063 #include <$header>
1064 #if !($condition)
1065 #error "unsatisfied condition: $condition"
1066 #endif
1067 EOF
1068 }
1069
1070 apply(){
1071     file=$1
1072     shift
1073     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1074 }
1075
1076 cp_if_changed(){
1077     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1078     mkdir -p "$(dirname $2)"
1079     $cp_f "$1" "$2"
1080 }
1081
1082 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1083 # system-dependent things.
1084
1085 COMPONENT_LIST="
1086     bsfs
1087     decoders
1088     demuxers
1089     encoders
1090     filters
1091     hwaccels
1092     indevs
1093     muxers
1094     outdevs
1095     parsers
1096     protocols
1097 "
1098
1099 EXAMPLE_LIST="
1100     avcodec_example
1101     filter_audio_example
1102     metadata_example
1103     output_example
1104     transcode_aac_example
1105 "
1106
1107 EXTERNAL_LIBRARY_LIST="
1108     avisynth
1109     bzlib
1110     frei0r
1111     gnutls
1112     libcdio
1113     libdc1394
1114     libfaac
1115     libfdk_aac
1116     libfreetype
1117     libgsm
1118     libilbc
1119     libmp3lame
1120     libopencore_amrnb
1121     libopencore_amrwb
1122     libopencv
1123     libopenjpeg
1124     libopus
1125     libpulse
1126     librtmp
1127     libschroedinger
1128     libspeex
1129     libtheora
1130     libvo_aacenc
1131     libvo_amrwbenc
1132     libvorbis
1133     libvpx
1134     libwavpack
1135     libwebp
1136     libx264
1137     libx265
1138     libxavs
1139     libxvid
1140     openssl
1141     x11grab
1142     zlib
1143 "
1144
1145 HWACCEL_LIST="
1146     dxva2
1147     vaapi
1148     vda
1149     vdpau
1150 "
1151 LIBRARY_LIST="
1152     avcodec
1153     avdevice
1154     avfilter
1155     avformat
1156     avresample
1157     avutil
1158     swscale
1159 "
1160
1161 PROGRAM_LIST="
1162     avconv
1163     avplay
1164     avprobe
1165     avserver
1166 "
1167
1168 CONFIG_LIST="
1169     $COMPONENT_LIST
1170     $EXAMPLE_LIST
1171     $EXTERNAL_LIBRARY_LIST
1172     $HWACCEL_LIST
1173     $LIBRARY_LIST
1174     $PROGRAM_LIST
1175     dct
1176     doc
1177     error_resilience
1178     fft
1179     gpl
1180     gray
1181     hardcoded_tables
1182     lsp
1183     lzo
1184     mdct
1185     memalign_hack
1186     neon_clobber_test
1187     network
1188     nonfree
1189     pod2man
1190     pic
1191     rdft
1192     runtime_cpudetect
1193     safe_bitstream_reader
1194     shared
1195     small
1196     sram
1197     static
1198     swscale_alpha
1199     texi2html
1200     thumb
1201     version3
1202     xmm_clobber_test
1203 "
1204
1205 THREADS_LIST='
1206     pthreads
1207     w32threads
1208 '
1209
1210 ATOMICS_LIST='
1211     atomics_gcc
1212     atomics_suncc
1213     atomics_win32
1214 '
1215
1216 ARCH_LIST='
1217     aarch64
1218     alpha
1219     arm
1220     avr32
1221     avr32_ap
1222     avr32_uc
1223     bfin
1224     ia64
1225     m68k
1226     mips
1227     mips64
1228     parisc
1229     ppc
1230     ppc64
1231     s390
1232     sh4
1233     sparc
1234     sparc64
1235     tilegx
1236     tilepro
1237     tomi
1238     x86
1239     x86_32
1240     x86_64
1241 '
1242
1243 ARCH_EXT_LIST_ARM='
1244     armv5te
1245     armv6
1246     armv6t2
1247     neon
1248     vfp
1249     vfpv3
1250 '
1251
1252 ARCH_EXT_LIST_X86='
1253     amd3dnow
1254     amd3dnowext
1255     avx
1256     avx2
1257     cpunop
1258     xop
1259     fma3
1260     fma4
1261     i686
1262     mmx
1263     mmxext
1264     sse
1265     sse2
1266     sse3
1267     sse4
1268     sse42
1269     ssse3
1270 '
1271
1272 ARCH_EXT_LIST="
1273     $ARCH_EXT_LIST_ARM
1274     $ARCH_EXT_LIST_X86
1275     altivec
1276     ppc4xx
1277     vis
1278 "
1279
1280 HAVE_LIST_CMDLINE='
1281     inline_asm
1282     symver
1283     yasm
1284 '
1285
1286 HAVE_LIST_PUB='
1287     bigendian
1288     fast_unaligned
1289 '
1290
1291 MATH_FUNCS="
1292     atanf
1293     atan2f
1294     cbrtf
1295     cosf
1296     exp2
1297     exp2f
1298     expf
1299     isinf
1300     isnan
1301     ldexpf
1302     llrint
1303     llrintf
1304     log2
1305     log2f
1306     log10f
1307     lrint
1308     lrintf
1309     powf
1310     rint
1311     round
1312     roundf
1313     sinf
1314     trunc
1315     truncf
1316 "
1317
1318 HAVE_LIST="
1319     $ARCH_EXT_LIST
1320     $(add_suffix _external $ARCH_EXT_LIST)
1321     $(add_suffix _inline   $ARCH_EXT_LIST)
1322     $HAVE_LIST_CMDLINE
1323     $HAVE_LIST_PUB
1324     $THREADS_LIST
1325     $ATOMICS_LIST
1326     $MATH_FUNCS
1327     aligned_malloc
1328     aligned_stack
1329     alsa_asoundlib_h
1330     altivec_h
1331     arpa_inet_h
1332     asm_mod_q
1333     asm_mod_y
1334     atomic_cas_ptr
1335     atomics_native
1336     attribute_may_alias
1337     attribute_packed
1338     cdio_paranoia_h
1339     cdio_paranoia_paranoia_h
1340     closesocket
1341     CommandLineToArgvW
1342     CryptGenRandom
1343     dcbzl
1344     dev_bktr_ioctl_bt848_h
1345     dev_bktr_ioctl_meteor_h
1346     dev_ic_bt8xx_h
1347     dev_video_bktr_ioctl_bt848_h
1348     dev_video_meteor_ioctl_meteor_h
1349     direct_h
1350     dlfcn_h
1351     dlopen
1352     dos_paths
1353     dxva_h
1354     ebp_available
1355     ebx_available
1356     fast_64bit
1357     fast_clz
1358     fast_cmov
1359     fcntl
1360     fork
1361     getaddrinfo
1362     gethrtime
1363     getopt
1364     GetProcessAffinityMask
1365     GetProcessMemoryInfo
1366     GetProcessTimes
1367     GetSystemTimeAsFileTime
1368     getrusage
1369     getservbyport
1370     gettimeofday
1371     gnu_as
1372     gsm_h
1373     ibm_asm
1374     inet_aton
1375     io_h
1376     inline_asm_labels
1377     isatty
1378     jack_port_get_latency_range
1379     ldbrx
1380     libc_msvcrt
1381     libdc1394_1
1382     libdc1394_2
1383     local_aligned_16
1384     local_aligned_8
1385     localtime_r
1386     loongson
1387     machine_ioctl_bt848_h
1388     machine_ioctl_meteor_h
1389     machine_rw_barrier
1390     malloc_h
1391     MapViewOfFile
1392     memalign
1393     MemoryBarrier
1394     mkstemp
1395     mm_empty
1396     mmap
1397     mprotect
1398     nanosleep
1399     poll_h
1400     posix_memalign
1401     pragma_deprecated
1402     rdtsc
1403     sched_getaffinity
1404     sdl
1405     SetConsoleTextAttribute
1406     setmode
1407     setrlimit
1408     Sleep
1409     sndio_h
1410     socklen_t
1411     soundcard_h
1412     strerror_r
1413     strptime
1414     strtok_r
1415     struct_addrinfo
1416     struct_group_source_req
1417     struct_ip_mreq_source
1418     struct_ipv6_mreq
1419     struct_pollfd
1420     struct_rusage_ru_maxrss
1421     struct_sockaddr_in6
1422     struct_sockaddr_sa_len
1423     struct_sockaddr_storage
1424     struct_v4l2_frmivalenum_discrete
1425     symver_asm_label
1426     symver_gnu_asm
1427     sync_val_compare_and_swap
1428     sysconf
1429     sysctl
1430     sys_mman_h
1431     sys_param_h
1432     sys_resource_h
1433     sys_select_h
1434     sys_soundcard_h
1435     sys_time_h
1436     sys_un_h
1437     sys_videoio_h
1438     threads
1439     unistd_h
1440     usleep
1441     vdpau_x11
1442     vfp_args
1443     VirtualAlloc
1444     windows_h
1445     winsock2_h
1446     xform_asm
1447     xlib
1448     xmm_clobbers
1449 "
1450
1451 # options emitted with CONFIG_ prefix but not available on the command line
1452 CONFIG_EXTRA="
1453     aandcttables
1454     ac3dsp
1455     audio_frame_queue
1456     dsputil
1457     gcrypt
1458     golomb
1459     gplv3
1460     h263dsp
1461     h264chroma
1462     h264dsp
1463     h264pred
1464     h264qpel
1465     hpeldsp
1466     huffman
1467     intrax8
1468     lgplv3
1469     lpc
1470     mpegaudio
1471     mpegaudiodsp
1472     mpegvideo
1473     mpegvideoenc
1474     nettle
1475     rangecoder
1476     riffdec
1477     riffenc
1478     rtpdec
1479     rtpenc_chain
1480     sinewin
1481     videodsp
1482     vp3dsp
1483 "
1484
1485 CMDLINE_SELECT="
1486     $ARCH_EXT_LIST
1487     $CONFIG_LIST
1488     $HAVE_LIST_CMDLINE
1489     $THREADS_LIST
1490     asm
1491     cross_compile
1492     debug
1493     extra_warnings
1494     logging
1495     lto
1496     optimizations
1497 "
1498
1499 PATHS_LIST='
1500     bindir
1501     datadir
1502     docdir
1503     incdir
1504     libdir
1505     mandir
1506     prefix
1507     shlibdir
1508 '
1509
1510 CMDLINE_SET="
1511     $PATHS_LIST
1512     ar
1513     arch
1514     as
1515     build_suffix
1516     cc
1517     cpu
1518     cross_prefix
1519     dep_cc
1520     extra_version
1521     host_cc
1522     host_cflags
1523     host_ld
1524     host_ldflags
1525     host_libs
1526     host_os
1527     ld
1528     logfile
1529     malloc_prefix
1530     nm
1531     optflags
1532     pkg_config
1533     random_seed
1534     samples
1535     sysinclude
1536     sysroot
1537     target_exec
1538     target_os
1539     target_path
1540     target_samples
1541     toolchain
1542 "
1543
1544 CMDLINE_APPEND="
1545     extra_cflags
1546     host_cppflags
1547 "
1548
1549 # code dependency declarations
1550
1551 # architecture extensions
1552
1553 armv5te_deps="arm"
1554 armv6_deps="arm"
1555 armv6t2_deps="arm"
1556 neon_deps_any="aarch64 arm"
1557 vfp_deps_any="aarch64 arm"
1558 vfpv3_deps="vfp"
1559
1560 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1561
1562 altivec_deps="ppc"
1563 ppc4xx_deps="ppc"
1564
1565 vis_deps="sparc"
1566
1567 cpunop_deps="i686"
1568 x86_64_select="i686"
1569 x86_64_suggest="fast_cmov"
1570
1571 amd3dnow_deps="mmx"
1572 amd3dnowext_deps="amd3dnow"
1573 i686_deps="x86"
1574 mmx_deps="x86"
1575 mmxext_deps="mmx"
1576 sse_deps="mmxext"
1577 sse2_deps="sse"
1578 sse3_deps="sse2"
1579 ssse3_deps="sse3"
1580 sse4_deps="ssse3"
1581 sse42_deps="sse4"
1582 avx_deps="sse42"
1583 xop_deps="avx"
1584 fma3_deps="avx"
1585 fma4_deps="avx"
1586 avx2_deps="avx"
1587
1588 mmx_external_deps="yasm"
1589 mmx_inline_deps="inline_asm"
1590 mmx_suggest="mmx_external mmx_inline"
1591
1592 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1593     eval dep=\$${ext}_deps
1594     eval ${ext}_external_deps='"${dep}_external"'
1595     eval ${ext}_inline_deps='"${dep}_inline"'
1596     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1597 done
1598
1599 aligned_stack_if_any="aarch64 ppc x86"
1600 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1601 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1602 fast_unaligned_if_any="aarch64 ppc x86"
1603
1604 need_memalign="altivec neon sse"
1605
1606 # system capabilities
1607 log2_deps="!libc_msvcrt"
1608
1609 symver_if_any="symver_asm_label symver_gnu_asm"
1610
1611 # threading support
1612 atomics_gcc_if="sync_val_compare_and_swap"
1613 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1614 atomics_win32_if="MemoryBarrier"
1615 atomics_native_if_any="$ATOMICS_LIST"
1616 w32threads_deps="atomics_native"
1617 threads_if_any="$THREADS_LIST"
1618
1619 # subsystems
1620 dct_select="rdft"
1621 error_resilience_select="dsputil"
1622 lpc_select="dsputil"
1623 mdct_select="fft"
1624 rdft_select="fft"
1625 mpegaudio_select="mpegaudiodsp"
1626 mpegaudiodsp_select="dct"
1627 mpegvideo_select="dsputil hpeldsp videodsp"
1628 mpegvideoenc_select="mpegvideo"
1629
1630 # decoders / encoders
1631 aac_decoder_select="mdct sinewin"
1632 aac_encoder_select="audio_frame_queue mdct sinewin"
1633 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1634 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1635 ac3_encoder_select="mdct ac3dsp dsputil"
1636 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1637 aic_decoder_select="dsputil golomb"
1638 alac_encoder_select="lpc"
1639 als_decoder_select="dsputil"
1640 amrnb_decoder_select="lsp"
1641 amrwb_decoder_select="lsp"
1642 amv_decoder_select="dsputil hpeldsp"
1643 ape_decoder_select="dsputil"
1644 asv1_decoder_select="dsputil"
1645 asv1_encoder_select="dsputil"
1646 asv2_decoder_select="dsputil"
1647 asv2_encoder_select="dsputil"
1648 atrac1_decoder_select="mdct sinewin"
1649 atrac3_decoder_select="mdct"
1650 atrac3p_decoder_select="mdct sinewin"
1651 bink_decoder_select="dsputil hpeldsp"
1652 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1653 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1654 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1655 cllc_decoder_select="dsputil"
1656 comfortnoise_encoder_select="lpc"
1657 cook_decoder_select="dsputil mdct sinewin"
1658 cscd_decoder_select="lzo"
1659 cscd_decoder_suggest="zlib"
1660 dca_decoder_select="mdct"
1661 dnxhd_decoder_select="dsputil"
1662 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1663 dvvideo_decoder_select="dsputil"
1664 dvvideo_encoder_select="dsputil"
1665 dxa_decoder_deps="zlib"
1666 eac3_decoder_select="ac3_decoder"
1667 eac3_encoder_select="ac3_encoder"
1668 eamad_decoder_select="aandcttables dsputil mpegvideo"
1669 eatgq_decoder_select="aandcttables dsputil"
1670 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1671 ffv1_decoder_select="dsputil golomb rangecoder"
1672 ffv1_encoder_select="dsputil rangecoder"
1673 ffvhuff_decoder_select="dsputil"
1674 ffvhuff_encoder_select="dsputil huffman"
1675 fic_decoder_select="dsputil golomb"
1676 flac_decoder_select="golomb"
1677 flac_encoder_select="dsputil golomb lpc"
1678 flashsv_decoder_deps="zlib"
1679 flashsv_encoder_deps="zlib"
1680 flashsv2_decoder_deps="zlib"
1681 flv_decoder_select="h263_decoder"
1682 flv_encoder_select="h263_encoder"
1683 fourxm_decoder_select="dsputil"
1684 fraps_decoder_select="dsputil huffman"
1685 g2m_decoder_deps="zlib"
1686 g2m_decoder_select="dsputil"
1687 h261_decoder_select="error_resilience mpegvideo"
1688 h261_encoder_select="aandcttables mpegvideoenc"
1689 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1690 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1691 h263i_decoder_select="h263_decoder"
1692 h263p_encoder_select="h263_encoder"
1693 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1694 h264_decoder_suggest="error_resilience"
1695 hevc_decoder_select="dsputil golomb videodsp"
1696 huffyuv_decoder_select="dsputil"
1697 huffyuv_encoder_select="dsputil huffman"
1698 iac_decoder_select="dsputil fft mdct sinewin"
1699 imc_decoder_select="dsputil fft mdct sinewin"
1700 indeo3_decoder_select="hpeldsp"
1701 interplay_video_decoder_select="hpeldsp"
1702 jpegls_decoder_select="dsputil golomb hpeldsp"
1703 jpegls_encoder_select="golomb"
1704 jv_decoder_select="dsputil"
1705 lagarith_decoder_select="dsputil"
1706 ljpeg_encoder_select="aandcttables mpegvideoenc"
1707 loco_decoder_select="golomb"
1708 mdec_decoder_select="dsputil error_resilience mpegvideo"
1709 metasound_decoder_select="lsp mdct sinewin"
1710 mimic_decoder_select="dsputil hpeldsp"
1711 mjpeg_decoder_select="dsputil hpeldsp"
1712 mjpegb_decoder_select="dsputil hpeldsp"
1713 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1714 mlp_decoder_select="dsputil mlp_parser"
1715 motionpixels_decoder_select="dsputil"
1716 mp1_decoder_select="mpegaudio"
1717 mp1float_decoder_select="mpegaudio"
1718 mp2_decoder_select="mpegaudio"
1719 mp2float_decoder_select="mpegaudio"
1720 mp3_decoder_select="mpegaudio"
1721 mp3adu_decoder_select="mpegaudio"
1722 mp3adufloat_decoder_select="mpegaudio"
1723 mp3float_decoder_select="mpegaudio"
1724 mp3on4_decoder_select="mpegaudio"
1725 mp3on4float_decoder_select="mpegaudio"
1726 mpc7_decoder_select="dsputil mpegaudiodsp"
1727 mpc8_decoder_select="dsputil mpegaudiodsp"
1728 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1729 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1730 mpeg1video_decoder_select="error_resilience mpegvideo"
1731 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1732 mpeg2video_decoder_select="error_resilience mpegvideo"
1733 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1734 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1735 mpeg4_encoder_select="h263_encoder"
1736 msmpeg4v1_decoder_select="h263_decoder"
1737 msmpeg4v2_decoder_select="h263_decoder"
1738 msmpeg4v2_encoder_select="h263_encoder"
1739 msmpeg4v3_decoder_select="h263_decoder"
1740 msmpeg4v3_encoder_select="h263_encoder"
1741 mss2_decoder_select="error_resilience vc1_decoder"
1742 mxpeg_decoder_select="dsputil hpeldsp"
1743 nellymoser_decoder_select="mdct sinewin"
1744 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1745 nuv_decoder_select="dsputil lzo"
1746 png_decoder_deps="zlib"
1747 png_decoder_select="dsputil"
1748 png_encoder_deps="zlib"
1749 png_encoder_select="dsputil"
1750 prores_decoder_select="dsputil"
1751 prores_encoder_select="dsputil"
1752 qcelp_decoder_select="lsp"
1753 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1754 ra_144_encoder_select="audio_frame_queue lpc"
1755 ralf_decoder_select="golomb"
1756 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1757 rv10_encoder_select="h263_encoder"
1758 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1759 rv20_encoder_select="h263_encoder"
1760 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1761 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1762 shorten_decoder_select="golomb"
1763 sipr_decoder_select="lsp"
1764 sp5x_decoder_select="dsputil hpeldsp"
1765 svq1_decoder_select="hpeldsp"
1766 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1767 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1768 svq3_decoder_suggest="error_resilience zlib"
1769 tak_decoder_select="dsputil"
1770 theora_decoder_select="vp3_decoder"
1771 tiff_decoder_suggest="zlib"
1772 tiff_encoder_suggest="zlib"
1773 thp_decoder_select="dsputil hpeldsp"
1774 truehd_decoder_select="mlp_decoder"
1775 truemotion2_decoder_select="dsputil"
1776 truespeech_decoder_select="dsputil"
1777 tscc_decoder_deps="zlib"
1778 twinvq_decoder_select="mdct lsp sinewin"
1779 utvideo_decoder_select="dsputil"
1780 utvideo_encoder_select="dsputil huffman"
1781 vble_decoder_select="dsputil"
1782 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
1783 vc1image_decoder_select="vc1_decoder"
1784 vorbis_decoder_select="mdct"
1785 vorbis_encoder_select="mdct"
1786 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1787 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1788 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1789 vp6a_decoder_select="vp6_decoder"
1790 vp6f_decoder_select="vp6_decoder"
1791 vp8_decoder_select="h264pred videodsp"
1792 vp9_decoder_select="videodsp"
1793 webp_decoder_select="vp8_decoder"
1794 wmapro_decoder_select="mdct sinewin"
1795 wmav1_decoder_select="mdct sinewin"
1796 wmav1_encoder_select="mdct sinewin"
1797 wmav2_decoder_select="mdct sinewin"
1798 wmav2_encoder_select="mdct sinewin"
1799 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1800 wmv1_decoder_select="h263_decoder"
1801 wmv1_encoder_select="h263_encoder"
1802 wmv2_decoder_select="h263_decoder intrax8 videodsp"
1803 wmv2_encoder_select="h263_encoder"
1804 wmv3_decoder_select="vc1_decoder"
1805 wmv3image_decoder_select="wmv3_decoder"
1806 zerocodec_decoder_deps="zlib"
1807 zlib_decoder_deps="zlib"
1808 zlib_encoder_deps="zlib"
1809 zmbv_decoder_deps="zlib"
1810 zmbv_encoder_deps="zlib"
1811
1812 # hardware accelerators
1813 dxva2_deps="dxva2api_h"
1814 vaapi_deps="va_va_h"
1815 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1816 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1817 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1818
1819 h263_vaapi_hwaccel_deps="vaapi"
1820 h263_vaapi_hwaccel_select="h263_decoder"
1821 h263_vdpau_hwaccel_deps="vdpau"
1822 h263_vdpau_hwaccel_select="h263_decoder"
1823 h264_dxva2_hwaccel_deps="dxva2"
1824 h264_dxva2_hwaccel_select="h264_decoder"
1825 h264_vaapi_hwaccel_deps="vaapi"
1826 h264_vaapi_hwaccel_select="h264_decoder"
1827 h264_vda_hwaccel_deps="vda"
1828 h264_vda_hwaccel_select="h264_decoder"
1829 h264_vdpau_hwaccel_deps="vdpau"
1830 h264_vdpau_hwaccel_select="h264_decoder"
1831 mpeg1_vdpau_hwaccel_deps="vdpau"
1832 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1833 mpeg2_dxva2_hwaccel_deps="dxva2"
1834 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1835 mpeg2_vaapi_hwaccel_deps="vaapi"
1836 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1837 mpeg2_vdpau_hwaccel_deps="vdpau"
1838 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1839 mpeg4_vaapi_hwaccel_deps="vaapi"
1840 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1841 mpeg4_vdpau_hwaccel_deps="vdpau"
1842 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1843 vc1_dxva2_hwaccel_deps="dxva2"
1844 vc1_dxva2_hwaccel_select="vc1_decoder"
1845 vc1_vaapi_hwaccel_deps="vaapi"
1846 vc1_vaapi_hwaccel_select="vc1_decoder"
1847 vc1_vdpau_hwaccel_deps="vdpau"
1848 vc1_vdpau_hwaccel_select="vc1_decoder"
1849 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1850 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1851 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1852
1853 # parsers
1854 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1855 mpeg4video_parser_select="error_resilience h263dsp mpegvideo"
1856 mpegvideo_parser_select="error_resilience mpegvideo"
1857 vc1_parser_select="mpegvideo"
1858
1859 # external libraries
1860 libfaac_encoder_deps="libfaac"
1861 libfaac_encoder_select="audio_frame_queue"
1862 libfdk_aac_decoder_deps="libfdk_aac"
1863 libfdk_aac_encoder_deps="libfdk_aac"
1864 libfdk_aac_encoder_select="audio_frame_queue"
1865 libgsm_decoder_deps="libgsm"
1866 libgsm_encoder_deps="libgsm"
1867 libgsm_ms_decoder_deps="libgsm"
1868 libgsm_ms_encoder_deps="libgsm"
1869 libilbc_decoder_deps="libilbc"
1870 libilbc_encoder_deps="libilbc"
1871 libmp3lame_encoder_deps="libmp3lame"
1872 libmp3lame_encoder_select="audio_frame_queue"
1873 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1874 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1875 libopencore_amrnb_encoder_select="audio_frame_queue"
1876 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1877 libopenjpeg_decoder_deps="libopenjpeg"
1878 libopenjpeg_encoder_deps="libopenjpeg"
1879 libopus_decoder_deps="libopus"
1880 libopus_encoder_deps="libopus"
1881 libopus_encoder_select="audio_frame_queue"
1882 libschroedinger_decoder_deps="libschroedinger"
1883 libschroedinger_encoder_deps="libschroedinger"
1884 libspeex_decoder_deps="libspeex"
1885 libspeex_encoder_deps="libspeex"
1886 libspeex_encoder_select="audio_frame_queue"
1887 libtheora_encoder_deps="libtheora"
1888 libvo_aacenc_encoder_deps="libvo_aacenc"
1889 libvo_aacenc_encoder_select="audio_frame_queue"
1890 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1891 libvorbis_encoder_deps="libvorbis"
1892 libvorbis_encoder_select="audio_frame_queue"
1893 libvpx_vp8_decoder_deps="libvpx"
1894 libvpx_vp8_encoder_deps="libvpx"
1895 libvpx_vp9_decoder_deps="libvpx"
1896 libvpx_vp9_encoder_deps="libvpx"
1897 libwavpack_encoder_deps="libwavpack"
1898 libwebp_encoder_deps="libwebp"
1899 libx264_encoder_deps="libx264"
1900 libx265_encoder_deps="libx265"
1901 libxavs_encoder_deps="libxavs"
1902 libxvid_encoder_deps="libxvid"
1903
1904 # demuxers / muxers
1905 ac3_demuxer_select="ac3_parser"
1906 asf_demuxer_select="riffdec"
1907 asf_muxer_select="riffenc"
1908 asf_stream_muxer_select="asf_muxer"
1909 avi_demuxer_select="riffdec"
1910 avi_muxer_select="riffenc"
1911 avisynth_demuxer_deps="avisynth"
1912 avisynth_demuxer_select="riffdec"
1913 caf_demuxer_select="riffdec"
1914 dirac_demuxer_select="dirac_parser"
1915 dxa_demuxer_select="riffdec"
1916 eac3_demuxer_select="ac3_parser"
1917 f4v_muxer_select="mov_muxer"
1918 flac_demuxer_select="flac_parser"
1919 hds_muxer_select="flv_muxer"
1920 hls_muxer_select="mpegts_muxer"
1921 ipod_muxer_select="mov_muxer"
1922 ismv_muxer_select="mov_muxer"
1923 matroska_audio_muxer_select="matroska_muxer"
1924 matroska_demuxer_select="riffdec"
1925 matroska_demuxer_suggest="bzlib lzo zlib"
1926 matroska_muxer_select="riffenc"
1927 mmf_muxer_select="riffenc"
1928 mov_demuxer_select="riffdec"
1929 mov_demuxer_suggest="zlib"
1930 mov_muxer_select="riffenc rtpenc_chain"
1931 mp3_demuxer_select="mpegaudio_parser"
1932 mp4_muxer_select="mov_muxer"
1933 mpegts_muxer_select="adts_muxer latm_muxer"
1934 mpegtsraw_demuxer_select="mpegts_demuxer"
1935 mxf_d10_muxer_select="mxf_muxer"
1936 nut_muxer_select="riffenc"
1937 nuv_demuxer_select="riffdec"
1938 ogg_demuxer_select="golomb"
1939 psp_muxer_select="mov_muxer"
1940 rtp_demuxer_select="sdp_demuxer"
1941 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1942 rtsp_demuxer_select="http_protocol rtpdec"
1943 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1944 sap_demuxer_select="sdp_demuxer"
1945 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1946 sdp_demuxer_select="rtpdec"
1947 smoothstreaming_muxer_select="ismv_muxer"
1948 spdif_muxer_select="aac_parser"
1949 tak_demuxer_select="tak_parser"
1950 tg2_muxer_select="mov_muxer"
1951 tgp_muxer_select="mov_muxer"
1952 w64_demuxer_select="wav_demuxer"
1953 wav_demuxer_select="riffdec"
1954 wav_muxer_select="riffenc"
1955 webm_muxer_select="riffenc"
1956 wtv_demuxer_select="riffdec"
1957 xmv_demuxer_select="riffdec"
1958 xwma_demuxer_select="riffdec"
1959
1960 # indevs / outdevs
1961 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1962 alsa_outdev_deps="alsa_asoundlib_h"
1963 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1964 dv1394_indev_deps="dv1394"
1965 dv1394_indev_select="dv_demuxer"
1966 fbdev_indev_deps="linux_fb_h"
1967 jack_indev_deps="jack_jack_h pthreads"
1968 libcdio_indev_deps="libcdio"
1969 libdc1394_indev_deps="libdc1394"
1970 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1971 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1972 pulse_indev_deps="libpulse"
1973 sndio_indev_deps="sndio_h"
1974 sndio_outdev_deps="sndio_h"
1975 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1976 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1977 vfwcap_indev_extralibs="-lavicap32"
1978 x11grab_indev_deps="x11grab XShmCreateImage"
1979
1980 # protocols
1981 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1982 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1983 ffrtmpcrypt_protocol_select="tcp_protocol"
1984 ffrtmphttp_protocol_deps="!librtmp_protocol"
1985 ffrtmphttp_protocol_select="http_protocol"
1986 gopher_protocol_select="network"
1987 httpproxy_protocol_select="tcp_protocol"
1988 http_protocol_select="tcp_protocol"
1989 https_protocol_select="tls_protocol"
1990 librtmp_protocol_deps="librtmp"
1991 librtmpe_protocol_deps="librtmp"
1992 librtmps_protocol_deps="librtmp"
1993 librtmpt_protocol_deps="librtmp"
1994 librtmpte_protocol_deps="librtmp"
1995 mmsh_protocol_select="http_protocol"
1996 mmst_protocol_select="network"
1997 rtmp_protocol_deps="!librtmp_protocol"
1998 rtmp_protocol_select="tcp_protocol"
1999 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2000 rtmps_protocol_deps="!librtmp_protocol"
2001 rtmps_protocol_select="tls_protocol"
2002 rtmpt_protocol_select="ffrtmphttp_protocol"
2003 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2004 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2005 rtp_protocol_select="udp_protocol"
2006 sctp_protocol_deps="struct_sctp_event_subscribe"
2007 sctp_protocol_select="network"
2008 srtp_protocol_select="rtp_protocol"
2009 tcp_protocol_select="network"
2010 tls_protocol_deps_any="openssl gnutls"
2011 tls_protocol_select="tcp_protocol"
2012 udp_protocol_select="network"
2013 unix_protocol_deps="sys_un_h"
2014 unix_protocol_select="network"
2015
2016 # filters
2017 blackframe_filter_deps="gpl"
2018 boxblur_filter_deps="gpl"
2019 compand_filter_deps="strtok_r"
2020 cropdetect_filter_deps="gpl"
2021 delogo_filter_deps="gpl"
2022 drawtext_filter_deps="libfreetype"
2023 frei0r_filter_deps="frei0r dlopen strtok_r"
2024 frei0r_filter_extralibs='$ldl'
2025 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2026 frei0r_src_filter_extralibs='$ldl'
2027 hqdn3d_filter_deps="gpl"
2028 interlace_filter_deps="gpl"
2029 resample_filter_deps="avresample"
2030 ocv_filter_deps="libopencv"
2031 scale_filter_deps="swscale"
2032
2033 # examples
2034 avcodec_example_deps="avcodec avutil"
2035 filter_audio_example_deps="avfilter avutil"
2036 metadata_example_deps="avformat avutil"
2037 output_example_deps="avcodec avformat avutil swscale"
2038 transcode_aac_example_deps="avcodec avformat avresample"
2039
2040 # libraries
2041 avcodec_deps="avutil"
2042 avdevice_deps="avutil avcodec avformat"
2043 avfilter_deps="avutil"
2044 avformat_deps="avutil avcodec"
2045 avresample_deps="avutil"
2046 swscale_deps="avutil"
2047
2048 # programs
2049 avconv_deps="avcodec avfilter avformat avresample swscale"
2050 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2051                fps_filter null_filter resample_filter scale_filter
2052                setpts_filter trim_filter"
2053 avplay_deps="avcodec avformat avresample swscale sdl"
2054 avplay_libs='$sdl_libs'
2055 avplay_select="rdft"
2056 avprobe_deps="avcodec avformat"
2057 avserver_deps="avformat fork !shared"
2058 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2059
2060 # documentation
2061 pod2man_deps="doc"
2062 texi2html_deps="doc"
2063
2064 # default parameters
2065
2066 logfile="config.log"
2067
2068 # installation paths
2069 prefix_default="/usr/local"
2070 bindir_default='${prefix}/bin'
2071 datadir_default='${prefix}/share/avconv'
2072 docdir_default='${prefix}/share/doc/libav'
2073 incdir_default='${prefix}/include'
2074 libdir_default='${prefix}/lib'
2075 mandir_default='${prefix}/share/man'
2076 shlibdir_default="$libdir_default"
2077
2078 # toolchain
2079 ar_default="ar"
2080 cc_default="gcc"
2081 host_cc_default="gcc"
2082 cp_f="cp -f"
2083 ln_s="ln -s -f"
2084 nm_default="nm -g"
2085 objformat="elf"
2086 pkg_config_default=pkg-config
2087 ranlib="ranlib"
2088 strip="strip"
2089 yasmexe="yasm"
2090
2091 nogas=":"
2092
2093 # machine
2094 arch_default=$(uname -m)
2095 cpu="generic"
2096
2097 # OS
2098 target_os_default=$(tolower $(uname -s))
2099 host_os=$target_os_default
2100
2101 # configurable options
2102 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2103
2104 enable asm
2105 enable debug
2106 enable doc
2107 enable optimizations
2108 enable safe_bitstream_reader
2109 enable static
2110 enable swscale_alpha
2111
2112 # By default, enable only those hwaccels that have no external dependencies.
2113 enable dxva2 vdpau
2114
2115 # build settings
2116 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2117 LIBPREF="lib"
2118 LIBSUF=".a"
2119 FULLNAME='$(NAME)$(BUILDSUF)'
2120 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2121 SLIBPREF="lib"
2122 SLIBSUF=".so"
2123 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2124 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2125 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2126 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2127 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2128 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2129
2130 asflags_filter=echo
2131 cflags_filter=echo
2132 ldflags_filter=echo
2133
2134 AS_C='-c'
2135 AS_O='-o $@'
2136 CC_C='-c'
2137 CC_E='-E -o $@'
2138 CC_O='-o $@'
2139 LD_O='-o $@'
2140 LD_LIB='-l%'
2141 LD_PATH='-L'
2142 HOSTCC_C='-c'
2143 HOSTCC_E='-E -o $@'
2144 HOSTCC_O='-o $@'
2145 HOSTLD_O='-o $@'
2146
2147 host_libs='-lm'
2148 host_cflags_filter=echo
2149 host_ldflags_filter=echo
2150
2151 target_path='$(CURDIR)'
2152
2153 # since the object filename is not given with the -MM flag, the compiler
2154 # is only able to print the basename, and we must add the path ourselves
2155 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2156 DEPFLAGS='-MM'
2157
2158 # find source path
2159 if test -f configure; then
2160     source_path=.
2161 else
2162     source_path=$(cd $(dirname "$0"); pwd)
2163     echo "$source_path" | grep -q '[[:blank:]]' &&
2164         die "Out of tree builds are impossible with whitespace in source path."
2165     test -e "$source_path/config.h" &&
2166         die "Out of tree builds are impossible with config.h in source dir."
2167 fi
2168
2169 for v in "$@"; do
2170     r=${v#*=}
2171     l=${v%"$r"}
2172     r=$(sh_quote "$r")
2173     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2174 done
2175
2176 find_things(){
2177     thing=$1
2178     pattern=$2
2179     file=$source_path/$3
2180     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2181 }
2182
2183 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2184 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2185 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2186 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2187 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2188 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2189 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2190 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2191 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2192 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2193 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2194
2195 ALL_COMPONENTS="
2196     $BSF_LIST
2197     $DECODER_LIST
2198     $DEMUXER_LIST
2199     $ENCODER_LIST
2200     $FILTER_LIST
2201     $HWACCEL_LIST
2202     $INDEV_LIST
2203     $MUXER_LIST
2204     $OUTDEV_LIST
2205     $PARSER_LIST
2206     $PROTOCOL_LIST
2207 "
2208
2209 for n in $COMPONENT_LIST; do
2210     v=$(toupper ${n%s})_LIST
2211     eval enable \$$v
2212     eval ${n}_if_any="\$$v"
2213 done
2214
2215 enable $ARCH_EXT_LIST
2216
2217 die_unknown(){
2218     echo "Unknown option \"$1\"."
2219     echo "See $0 --help for available options."
2220     exit 1
2221 }
2222
2223 print_3_columns() {
2224     cat | tr ' ' '\n' | sort | pr -r -3 -t
2225 }
2226
2227 show_list() {
2228     suffix=_$1
2229     shift
2230     echo $* | sed s/$suffix//g | print_3_columns
2231     exit 0
2232 }
2233
2234 rand_list(){
2235     IFS=', '
2236     set -- $*
2237     unset IFS
2238     for thing; do
2239         comp=${thing%:*}
2240         prob=${thing#$comp}
2241         prob=${prob#:}
2242         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2243         echo "prob ${prob:-0.5}"
2244         printf '%s\n' $comp
2245     done
2246 }
2247
2248 do_random(){
2249     action=$1
2250     shift
2251     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2252     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2253 }
2254
2255 for opt do
2256     optval="${opt#*=}"
2257     case "$opt" in
2258         --extra-ldflags=*)
2259             add_ldflags $optval
2260         ;;
2261         --extra-libs=*)
2262             add_extralibs $optval
2263         ;;
2264         --disable-devices)
2265             disable $INDEV_LIST $OUTDEV_LIST
2266         ;;
2267         --enable-debug=*)
2268             debuglevel="$optval"
2269         ;;
2270         --disable-programs)
2271             disable $PROGRAM_LIST
2272         ;;
2273         --disable-everything)
2274             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2275         ;;
2276         --disable-all)
2277             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2278             disable $LIBRARY_LIST $PROGRAM_LIST doc
2279         ;;
2280         --enable-random|--disable-random)
2281             action=${opt%%-random}
2282             do_random ${action#--} $COMPONENT_LIST
2283         ;;
2284         --enable-random=*|--disable-random=*)
2285             action=${opt%%-random=*}
2286             do_random ${action#--} $optval
2287         ;;
2288         --enable-*=*|--disable-*=*)
2289             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2290             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2291             eval list=\$$(toupper $thing)_LIST
2292             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2293             $action $(filter "$name" $list)
2294         ;;
2295         --enable-?*|--disable-?*)
2296             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2297             if is_in $option $COMPONENT_LIST; then
2298                 test $action = disable && action=unset
2299                 eval $action \$$(toupper ${option%s})_LIST
2300             elif is_in $option $CMDLINE_SELECT; then
2301                 $action $option
2302             else
2303                 die_unknown $opt
2304             fi
2305         ;;
2306         --list-*)
2307             NAME="${opt#--list-}"
2308             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2309             NAME=${NAME%s}
2310             eval show_list $NAME \$$(toupper $NAME)_LIST
2311         ;;
2312         --help|-h) show_help
2313         ;;
2314         *)
2315             optname="${opt%%=*}"
2316             optname="${optname#--}"
2317             optname=$(echo "$optname" | sed 's/-/_/g')
2318             if is_in $optname $CMDLINE_SET; then
2319                 eval $optname='$optval'
2320             elif is_in $optname $CMDLINE_APPEND; then
2321                 append $optname "$optval"
2322             else
2323                 die_unknown $opt
2324             fi
2325         ;;
2326     esac
2327 done
2328
2329 disabled logging && logfile=/dev/null
2330
2331 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2332 set >> $logfile
2333
2334 test -n "$cross_prefix" && enable cross_compile
2335
2336 if enabled cross_compile; then
2337     test -n "$arch" && test -n "$target_os" ||
2338         die "Must specify target arch and OS when cross-compiling"
2339 fi
2340
2341 ar_default="${cross_prefix}${ar_default}"
2342 cc_default="${cross_prefix}${cc_default}"
2343 nm_default="${cross_prefix}${nm_default}"
2344 pkg_config_default="${cross_prefix}${pkg_config_default}"
2345 ranlib="${cross_prefix}${ranlib}"
2346 strip="${cross_prefix}${strip}"
2347
2348 sysinclude_default="${sysroot}/usr/include"
2349
2350 case "$toolchain" in
2351     clang-asan)
2352         cc_default="clang"
2353         add_cflags  -fsanitize=address
2354         add_ldflags -fsanitize=address
2355     ;;
2356     clang-tsan)
2357         cc_default="clang"
2358         add_cflags  -fsanitize=thread -pie
2359         add_ldflags -fsanitize=thread -pie
2360     ;;
2361     clang-usan)
2362         cc_default="clang"
2363         add_cflags  -fsanitize=undefined
2364         add_ldflags -fsanitize=undefined
2365     ;;
2366     gcc-asan)
2367         cc_default="gcc"
2368         add_cflags  -fsanitize=address
2369         add_ldflags -fsanitize=address
2370     ;;
2371     gcc-tsan)
2372         cc_default="gcc"
2373         add_cflags  -fsanitize=thread -pie -fPIC
2374         add_ldflags -fsanitize=thread -pie -fPIC
2375     ;;
2376     gcc-usan)
2377         cc_default="gcc"
2378         add_cflags  -fsanitize=undefined
2379         add_ldflags -fsanitize=undefined
2380     ;;
2381     valgrind-massif)
2382         target_exec_default="valgrind"
2383         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2384     ;;
2385     valgrind-memcheck)
2386         target_exec_default="valgrind"
2387         target_exec_args="--track-origins=yes --leak-check=full"
2388     ;;
2389     msvc)
2390         # Check whether the current MSVC version needs the C99 converter.
2391         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2392         # support enough of C99 to build libav. Default to the new
2393         # behaviour if the regexp was unable to match anything, since this
2394         # successfully parses the version number of existing supported
2395         # versions that require the converter (MSVC 2010 and 2012).
2396         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2397         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2398             cc_default="cl"
2399         else
2400             cc_default="c99wrap cl"
2401         fi
2402         ld_default="link"
2403         nm_default="dumpbin -symbols"
2404         ar_default="lib"
2405         target_os_default="win32"
2406         # Use a relative path for TMPDIR. This makes sure all the
2407         # ffconf temp files are written with a relative path, avoiding
2408         # issues with msys/win32 path conversion for MSVC parameters
2409         # such as -Fo<file> or -out:<file>.
2410         TMPDIR=.
2411     ;;
2412     icl)
2413         cc_default="icl"
2414         ld_default="xilink"
2415         nm_default="dumpbin -symbols"
2416         ar_default="xilib"
2417         target_os_default="win32"
2418         TMPDIR=.
2419     ;;
2420     gcov)
2421         add_cflags  -fprofile-arcs -ftest-coverage
2422         add_ldflags -fprofile-arcs -ftest-coverage
2423     ;;
2424     hardened)
2425         add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2426         add_ldflags -Wl,-z,relro -Wl,-z,now
2427     ;;
2428     ?*)
2429         die "Unknown toolchain $toolchain"
2430     ;;
2431 esac
2432
2433 set_default arch cc pkg_config sysinclude target_exec target_os
2434 enabled cross_compile || host_cc_default=$cc
2435 set_default host_cc
2436
2437 if ! $pkg_config --version >/dev/null 2>&1; then
2438     warn "$pkg_config not found, library detection may fail."
2439     pkg_config=false
2440 fi
2441
2442 exesuf() {
2443     case $1 in
2444         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2445     esac
2446 }
2447
2448 EXESUF=$(exesuf $target_os)
2449 HOSTEXESUF=$(exesuf $host_os)
2450
2451 # set temporary file name
2452 : ${TMPDIR:=$TEMPDIR}
2453 : ${TMPDIR:=$TMP}
2454 : ${TMPDIR:=/tmp}
2455
2456 if ! check_cmd mktemp -u XXXXXX; then
2457     # simple replacement for missing mktemp
2458     # NOT SAFE FOR GENERAL USE
2459     mktemp(){
2460         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2461     }
2462 fi
2463
2464 tmpfile(){
2465     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2466         (set -C; exec > $tmp) 2>/dev/null ||
2467         die "Unable to create temporary file in $TMPDIR."
2468     append TMPFILES $tmp
2469     eval $1=$tmp
2470 }
2471
2472 trap 'rm -f -- $TMPFILES' EXIT
2473
2474 tmpfile TMPASM .asm
2475 tmpfile TMPC   .c
2476 tmpfile TMPE   $EXESUF
2477 tmpfile TMPH   .h
2478 tmpfile TMPO   .o
2479 tmpfile TMPS   .S
2480 tmpfile TMPSH  .sh
2481 tmpfile TMPV   .ver
2482
2483 unset -f mktemp
2484
2485 chmod +x $TMPE
2486
2487 # make sure we can execute files in $TMPDIR
2488 cat > $TMPSH 2>> $logfile <<EOF
2489 #! /bin/sh
2490 EOF
2491 chmod +x $TMPSH >> $logfile 2>&1
2492 if ! $TMPSH >> $logfile 2>&1; then
2493     cat <<EOF
2494 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2495 variable to another directory and make sure that it is not mounted noexec.
2496 EOF
2497     die "Sanity test failed."
2498 fi
2499
2500 ccc_flags(){
2501     for flag; do
2502         case $flag in
2503             -std=c99)           echo -c99                       ;;
2504             -mcpu=*)            echo -arch ${flag#*=}           ;;
2505             -mieee)             echo -ieee                      ;;
2506             -O*|-fast)          echo $flag                      ;;
2507             -fno-math-errno)    echo -assume nomath_errno       ;;
2508             -g)                 echo -g3                        ;;
2509             -Wall)              echo -msg_enable level2         ;;
2510             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2511             -Wl,*)              echo $flag                      ;;
2512             -f*|-W*)                                            ;;
2513             *)                  echo $flag                      ;;
2514         esac
2515    done
2516 }
2517
2518 cparser_flags(){
2519     for flag; do
2520         case $flag in
2521             -Wno-switch)             echo -Wno-switch-enum ;;
2522             -Wno-format-zero-length) ;;
2523             -Wdisabled-optimization) ;;
2524             -Wno-pointer-sign)       echo -Wno-other ;;
2525             *)                       echo $flag ;;
2526         esac
2527     done
2528 }
2529
2530 msvc_common_flags(){
2531     for flag; do
2532         case $flag in
2533             # In addition to specifying certain flags under the compiler
2534             # specific filters, they must be specified here as well or else the
2535             # generic catch all at the bottom will print the original flag.
2536             -Wall)                ;;
2537             -std=c99)             ;;
2538             # Common flags
2539             -fomit-frame-pointer) ;;
2540             -g)                   echo -Z7 ;;
2541             -fno-math-errno)      ;;
2542             -fno-common)          ;;
2543             -fno-signed-zeros)    ;;
2544             -fPIC)                ;;
2545             -mthumb)              ;;
2546             -march=*)             ;;
2547             -lz)                  echo zlib.lib ;;
2548             -lavifil32)           echo vfw32.lib ;;
2549             -lavicap32)           echo vfw32.lib user32.lib ;;
2550             -l*)                  echo ${flag#-l}.lib ;;
2551             *)                    echo $flag ;;
2552         esac
2553     done
2554 }
2555
2556 msvc_flags(){
2557     msvc_common_flags "$@"
2558     for flag; do
2559         case $flag in
2560             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2561                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2562                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2563                                        -wd4273 ;;
2564         esac
2565     done
2566 }
2567
2568 icl_flags(){
2569     msvc_common_flags "$@"
2570     for flag; do
2571         case $flag in
2572             # Despite what Intel's documentation says -Wall, which is supported
2573             # on Windows, does enable remarks so disable them here.
2574             -Wall)                echo $flag -Qdiag-disable:remark ;;
2575             -std=c99)             echo -Qstd=c99 ;;
2576         esac
2577     done
2578 }
2579
2580 pgi_flags(){
2581     for flag; do
2582         case $flag in
2583             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2584             -fomit-frame-pointer) echo -Mnoframe ;;
2585             -g)                   echo -gopt ;;
2586             *)                    echo $flag ;;
2587         esac
2588     done
2589 }
2590
2591 suncc_flags(){
2592     for flag; do
2593         case $flag in
2594             -march=*|-mcpu=*)
2595                 case "${flag#*=}" in
2596                     native)                   echo -xtarget=native       ;;
2597                     v9|niagara)               echo -xarch=sparc          ;;
2598                     ultrasparc)               echo -xarch=sparcvis       ;;
2599                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2600                     i586|pentium)             echo -xchip=pentium        ;;
2601                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2602                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2603                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2604                     pentium4*)          echo -xtarget=pentium4           ;;
2605                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2606                     *-sse3)             echo -xarch=sse3                 ;;
2607                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2608                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2609                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2610                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2611                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2612                     k8|opteron|athlon64|athlon-fx)
2613                                                echo -xarch=sse2a         ;;
2614                     athlon*)                   echo -xarch=pentium_proa  ;;
2615                 esac
2616                 ;;
2617             -std=c99)             echo -xc99              ;;
2618             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2619             -fPIC)                echo -KPIC -xcode=pic32 ;;
2620             -W*,*)                echo $flag              ;;
2621             -f*-*|-W*|-mimpure-text)                      ;;
2622             -shared)              echo -G                 ;;
2623             *)                    echo $flag              ;;
2624         esac
2625     done
2626 }
2627
2628 tms470_flags(){
2629     for flag; do
2630         case $flag in
2631             -march=*|-mcpu=*)
2632                 case "${flag#*=}" in
2633                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2634                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2635                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2636                     armv6*|arm11*)          echo -mv=6   ;;
2637                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2638                                             echo -mv=5e  ;;
2639                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2640                 esac
2641                 ;;
2642             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2643             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2644             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2645             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2646             -msoft-float)   echo --float_support=vfplib       ;;
2647             -O[0-3]|-mf=*)  echo $flag                        ;;
2648             -g)             echo -g -mn                       ;;
2649             -pds=*)         echo $flag                        ;;
2650             -D*|-I*)        echo $flag                        ;;
2651             --gcc|--abi=*)  echo $flag                        ;;
2652             -me)            echo $flag                        ;;
2653         esac
2654     done
2655 }
2656
2657 probe_cc(){
2658     pfx=$1
2659     _cc=$2
2660
2661     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2662     unset _ld_o _ldflags _ld_lib _ld_path
2663     unset _depflags _DEPCMD _DEPFLAGS
2664     _flags_filter=echo
2665
2666     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2667         _type=llvm_gcc
2668         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2669         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2670         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2671         _cflags_speed='-O3'
2672         _cflags_size='-Os'
2673     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2674         _type=gcc
2675         gcc_version=$($_cc --version | head -n1)
2676         gcc_basever=$($_cc -dumpversion)
2677         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2678         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2679         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2680         if ! $_cc -dumpversion | grep -q '^2\.'; then
2681             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2682         fi
2683         _cflags_speed='-O3'
2684         _cflags_size='-Os'
2685     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2686         _type=icc
2687         _ident=$($_cc --version | head -n1)
2688         _depflags='-MMD'
2689         _cflags_speed='-O3'
2690         _cflags_size='-Os'
2691         _cflags_noopt='-O1'
2692     elif $_cc -v 2>&1 | grep -q xlc; then
2693         _type=xlc
2694         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2695         _cflags_speed='-O5'
2696         _cflags_size='-O5 -qcompact'
2697     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2698         _type=ccc
2699         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2700         _DEPFLAGS='-M'
2701         _cflags_speed='-fast'
2702         _cflags_size='-O1'
2703         _flags_filter=ccc_flags
2704     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2705         test -d "$sysroot" || die "No valid sysroot specified."
2706         _type=armcc
2707         _ident=$($_cc --vsn | head -n1)
2708         armcc_conf="$PWD/armcc.conf"
2709         $_cc --arm_linux_configure                 \
2710              --arm_linux_config_file="$armcc_conf" \
2711              --configure_sysroot="$sysroot"        \
2712              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2713              die "Error creating armcc configuration file."
2714         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2715         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2716         as_default="${cross_prefix}gcc"
2717         _depflags='-MMD'
2718         _cflags_speed='-O3'
2719         _cflags_size='-Os'
2720     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2721         _type=tms470
2722         _ident=$($_cc -version | head -n1 | tr -s ' ')
2723         _flags='--gcc --abi=eabi -me'
2724         _cc_e='-ppl -fe=$@'
2725         _cc_o='-fe=$@'
2726         _depflags='-ppa -ppd=$(@:.o=.d)'
2727         _cflags_speed='-O3 -mf=5'
2728         _cflags_size='-O3 -mf=2'
2729         _flags_filter=tms470_flags
2730     elif $_cc -v 2>&1 | grep -q clang; then
2731         _type=clang
2732         _ident=$($_cc --version | head -n1)
2733         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2734         _cflags_speed='-O3'
2735         _cflags_size='-Os'
2736     elif $_cc -V 2>&1 | grep -q Sun; then
2737         _type=suncc
2738         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2739         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2740         _DEPFLAGS='-xM1 -xc99'
2741         _ldflags='-std=c99'
2742         _cflags_speed='-O5'
2743         _cflags_size='-O5 -xspace'
2744         _flags_filter=suncc_flags
2745     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2746         _type=pathscale
2747         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2748         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2749         _cflags_speed='-O2'
2750         _cflags_size='-Os'
2751         _flags_filter='filter_out -Wdisabled-optimization'
2752     elif $_cc -v 2>&1 | grep -q Open64; then
2753         _type=open64
2754         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2755         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2756         _cflags_speed='-O2'
2757         _cflags_size='-Os'
2758         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2759     elif $_cc -V 2>&1 | grep -q Portland; then
2760         _type=pgi
2761         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2762         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2763         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2764         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2765         _cflags_noopt="-O1"
2766         _flags_filter=pgi_flags
2767     elif $_cc 2>&1 | grep -q Microsoft; then
2768         _type=msvc
2769         _ident=$($cc 2>&1 | head -n1)
2770         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2771         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2772         _cflags_speed="-O2"
2773         _cflags_size="-O1"
2774         if $_cc 2>&1 | grep -q Linker; then
2775             _ld_o='-out:$@'
2776         else
2777             _ld_o='-Fe$@'
2778         fi
2779         _cc_o='-Fo$@'
2780         _cc_e='-P -Fi$@'
2781         _flags_filter=msvc_flags
2782         _ld_lib='lib%.a'
2783         _ld_path='-libpath:'
2784         _flags='-nologo'
2785         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2786         if [ $pfx = hostcc ]; then
2787             append _cflags -Dsnprintf=_snprintf
2788         fi
2789     elif $_cc 2>&1 | grep -q Intel; then
2790         _type=icl
2791         _ident=$($cc 2>&1 | head -n1)
2792         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2793         # Not only is O3 broken on 13.x+ but it is slower on all previous
2794         # versions (tested) as well.
2795         _cflags_speed="-O2"
2796         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2797         if $_cc 2>&1 | grep -q Linker; then
2798             _ld_o='-out:$@'
2799         else
2800             _ld_o='-Fe$@'
2801         fi
2802         _cc_o='-Fo$@'
2803         _cc_e='-P'
2804         _flags_filter=icl_flags
2805         _ld_lib='lib%.a'
2806         _ld_path='-libpath:'
2807         # -Qdiag-error to make icl error when seeing certain unknown arguments
2808         _flags='-nologo -Qdiag-error:4044,10157'
2809         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2810         # with MSVC which enables it by default.
2811         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2812         if [ $pfx = hostcc ]; then
2813             append _cflags -Dsnprintf=_snprintf
2814         fi
2815     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2816         _type=cparser
2817         _ident=$($_cc --version | head -n1)
2818         _depflags='-MMD'
2819         _cflags_speed='-O4'
2820         _cflags_size='-O2'
2821         _flags_filter=cparser_flags
2822     fi
2823
2824     eval ${pfx}_type=\$_type
2825     eval ${pfx}_ident=\$_ident
2826 }
2827
2828 set_ccvars(){
2829     eval ${1}_C=\${_cc_c-\${${1}_C}}
2830     eval ${1}_E=\${_cc_e-\${${1}_E}}
2831     eval ${1}_O=\${_cc_o-\${${1}_O}}
2832
2833     if [ -n "$_depflags" ]; then
2834         eval ${1}_DEPFLAGS=\$_depflags
2835     else
2836         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2837         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2838         eval DEP${1}FLAGS=\$_flags
2839     fi
2840 }
2841
2842 probe_cc cc "$cc"
2843 cflags_filter=$_flags_filter
2844 cflags_speed=$_cflags_speed
2845 cflags_size=$_cflags_size
2846 cflags_noopt=$_cflags_noopt
2847 add_cflags $_flags $_cflags
2848 cc_ldflags=$_ldflags
2849 set_ccvars CC
2850
2851 probe_cc hostcc "$host_cc"
2852 host_cflags_filter=$_flags_filter
2853 add_host_cflags  $_flags $_cflags
2854 set_ccvars HOSTCC
2855
2856 test -n "$cc_type" && enable $cc_type ||
2857     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2858
2859 : ${as_default:=$cc}
2860 : ${dep_cc_default:=$cc}
2861 : ${ld_default:=$cc}
2862 : ${host_ld_default:=$host_cc}
2863 set_default ar as dep_cc ld host_ld
2864
2865 probe_cc as "$as"
2866 asflags_filter=$_flags_filter
2867 add_asflags $_flags $_cflags
2868 set_ccvars AS
2869
2870 probe_cc ld "$ld"
2871 ldflags_filter=$_flags_filter
2872 add_ldflags $_flags $_ldflags
2873 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2874 LD_O=${_ld_o-$LD_O}
2875 LD_LIB=${_ld_lib-$LD_LIB}
2876 LD_PATH=${_ld_path-$LD_PATH}
2877
2878 probe_cc hostld "$host_ld"
2879 host_ldflags_filter=$_flags_filter
2880 add_host_ldflags $_flags $_ldflags
2881 HOSTLD_O=${_ld_o-$HOSTLD_O}
2882
2883 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2884     probe_cc depcc "$dep_cc"
2885     CCDEP=${_DEPCMD:-$DEPCMD}
2886     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2887     DEPCCFLAGS=$_flags
2888 fi
2889
2890 if $ar 2>&1 | grep -q Microsoft; then
2891     arflags="-nologo"
2892     ar_o='-out:$@'
2893 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2894     arflags="rq"
2895     ar_o='$@'
2896 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2897     arflags='-Xany -r -c'
2898     ar_o='$@'
2899 else
2900     arflags="rc"
2901     ar_o='$@'
2902 fi
2903
2904 add_cflags $extra_cflags
2905 add_asflags $extra_cflags
2906
2907 if test -n "$sysroot"; then
2908     case "$cc_type" in
2909         gcc|llvm_gcc|clang)
2910             add_cppflags --sysroot="$sysroot"
2911             add_ldflags --sysroot="$sysroot"
2912         ;;
2913         tms470)
2914             add_cppflags -I"$sysinclude"
2915             add_ldflags  --sysroot="$sysroot"
2916         ;;
2917     esac
2918 fi
2919
2920 if test "$cpu" = host; then
2921     enabled cross_compile &&
2922         die "--cpu=host makes no sense when cross-compiling."
2923
2924     case "$cc_type" in
2925         gcc|llvm_gcc)
2926             check_native(){
2927                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2928                 sed -n "/cc1.*$1=/{
2929                             s/.*$1=\\([^ ]*\\).*/\\1/
2930                             p
2931                             q
2932                         }" $TMPE
2933             }
2934             cpu=$(check_native -march || check_native -mcpu)
2935         ;;
2936     esac
2937
2938     test "${cpu:-host}" = host &&
2939         die "--cpu=host not supported with compiler $cc"
2940 fi
2941
2942 # Deal with common $arch aliases
2943 case "$arch" in
2944     aarch64|arm64)
2945         arch="aarch64"
2946     ;;
2947     arm*)
2948         arch="arm"
2949     ;;
2950     mips*|IP*)
2951         arch="mips"
2952     ;;
2953     parisc*|hppa*)
2954         arch="parisc"
2955     ;;
2956     "Power Macintosh"|ppc*|powerpc*)
2957         arch="ppc"
2958     ;;
2959     s390|s390x)
2960         arch="s390"
2961     ;;
2962     sh4|sh)
2963         arch="sh4"
2964     ;;
2965     sun4u|sparc*)
2966         arch="sparc"
2967     ;;
2968     tilegx|tile-gx)
2969         arch="tilegx"
2970     ;;
2971     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2972         arch="x86"
2973     ;;
2974 esac
2975
2976 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2977 enable $arch
2978
2979 # Add processor-specific flags
2980 if enabled aarch64; then
2981
2982     case $cpu in
2983         armv*)
2984             cpuflags="-march=$cpu"
2985         ;;
2986         *)
2987             cpuflags="-mcpu=$cpu"
2988         ;;
2989     esac
2990
2991 elif enabled alpha; then
2992
2993     cpuflags="-mcpu=$cpu"
2994
2995 elif enabled arm; then
2996
2997     check_arm_arch() {
2998         check_cpp_condition stddef.h \
2999             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3000             $cpuflags
3001     }
3002
3003     probe_arm_arch() {
3004         if   check_arm_arch 4;        then echo armv4;
3005         elif check_arm_arch 4T;       then echo armv4t;
3006         elif check_arm_arch 5;        then echo armv5;
3007         elif check_arm_arch 5E;       then echo armv5e;
3008         elif check_arm_arch 5T;       then echo armv5t;
3009         elif check_arm_arch 5TE;      then echo armv5te;
3010         elif check_arm_arch 5TEJ;     then echo armv5te;
3011         elif check_arm_arch 6;        then echo armv6;
3012         elif check_arm_arch 6J;       then echo armv6j;
3013         elif check_arm_arch 6K;       then echo armv6k;
3014         elif check_arm_arch 6Z;       then echo armv6z;
3015         elif check_arm_arch 6ZK;      then echo armv6zk;
3016         elif check_arm_arch 6T2;      then echo armv6t2;
3017         elif check_arm_arch 7;        then echo armv7;
3018         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3019         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3020         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3021         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3022         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3023         fi
3024     }
3025
3026     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3027
3028     case $cpu in
3029         armv*)
3030             cpuflags="-march=$cpu"
3031             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3032         ;;
3033         *)
3034             cpuflags="-mcpu=$cpu"
3035             case $cpu in
3036                 cortex-a*)                               subarch=armv7a  ;;
3037                 cortex-r*)                               subarch=armv7r  ;;
3038                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3039                 arm11*)                                  subarch=armv6   ;;
3040                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3041                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3042                 *)                             subarch=$(probe_arm_arch) ;;
3043             esac
3044         ;;
3045     esac
3046
3047     case "$subarch" in
3048         armv5t*)    enable fast_clz                ;;
3049         armv[6-8]*) enable fast_clz fast_unaligned ;;
3050     esac
3051
3052 elif enabled avr32; then
3053
3054     case $cpu in
3055         ap7[02]0[0-2])
3056             subarch="avr32_ap"
3057             cpuflags="-mpart=$cpu"
3058         ;;
3059         ap)
3060             subarch="avr32_ap"
3061             cpuflags="-march=$cpu"
3062         ;;
3063         uc3[ab]*)
3064             subarch="avr32_uc"
3065             cpuflags="-mcpu=$cpu"
3066         ;;
3067         uc)
3068             subarch="avr32_uc"
3069             cpuflags="-march=$cpu"
3070         ;;
3071     esac
3072
3073 elif enabled bfin; then
3074
3075     cpuflags="-mcpu=$cpu"
3076
3077 elif enabled mips; then
3078
3079     cpuflags="-march=$cpu"
3080
3081 elif enabled ppc; then
3082
3083     case $(tolower $cpu) in
3084         601|ppc601|powerpc601)
3085             cpuflags="-mcpu=601"
3086             disable altivec
3087         ;;
3088         603*|ppc603*|powerpc603*)
3089             cpuflags="-mcpu=603"
3090             disable altivec
3091         ;;
3092         604*|ppc604*|powerpc604*)
3093             cpuflags="-mcpu=604"
3094             disable altivec
3095         ;;
3096         g3|75*|ppc75*|powerpc75*)
3097             cpuflags="-mcpu=750"
3098             disable altivec
3099         ;;
3100         g4|745*|ppc745*|powerpc745*)
3101             cpuflags="-mcpu=7450"
3102         ;;
3103         74*|ppc74*|powerpc74*)
3104             cpuflags="-mcpu=7400"
3105         ;;
3106         g5|970|ppc970|powerpc970)
3107             cpuflags="-mcpu=970"
3108         ;;
3109         power[3-7]*)
3110             cpuflags="-mcpu=$cpu"
3111         ;;
3112         cell)
3113             cpuflags="-mcpu=cell"
3114             enable ldbrx
3115         ;;
3116         e500mc)
3117             cpuflags="-mcpu=e500mc"
3118             disable altivec
3119         ;;
3120         e500v2)
3121             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3122             disable altivec
3123         ;;
3124         e500)
3125             cpuflags="-mcpu=8540 -mhard-float"
3126             disable altivec
3127         ;;
3128     esac
3129
3130 elif enabled sparc; then
3131
3132     case $cpu in
3133         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3134             cpuflags="-mcpu=$cpu"
3135             disable vis
3136         ;;
3137         ultrasparc*|niagara[234])
3138             cpuflags="-mcpu=$cpu"
3139         ;;
3140     esac
3141
3142 elif enabled x86; then
3143
3144     case $cpu in
3145         i[345]86|pentium)
3146             cpuflags="-march=$cpu"
3147             disable mmx
3148         ;;
3149         # targets that do NOT support nopl and conditional mov (cmov)
3150         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3151             cpuflags="-march=$cpu"
3152             disable i686
3153         ;;
3154         # targets that do support nopl and conditional mov (cmov)
3155         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3156             cpuflags="-march=$cpu"
3157             enable i686
3158             enable fast_cmov
3159         ;;
3160         # targets that do support conditional mov but on which it's slow
3161         pentium4|pentium4m|prescott|nocona)
3162             cpuflags="-march=$cpu"
3163             enable i686
3164             disable fast_cmov
3165         ;;
3166     esac
3167
3168 fi
3169
3170 if [ "$cpu" != generic ]; then
3171     add_cflags  $cpuflags
3172     add_asflags $cpuflags
3173 fi
3174
3175 # compiler sanity check
3176 check_exec <<EOF
3177 int main(void){ return 0; }
3178 EOF
3179 if test "$?" != 0; then
3180     echo "$cc is unable to create an executable file."
3181     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3182         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3183         echo "Only do this if you know what cross compiling means."
3184     fi
3185     die "C compiler test failed."
3186 fi
3187
3188 add_cppflags -D_ISOC99_SOURCE
3189 check_cflags -std=c99
3190 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3191 #include <stdlib.h>
3192 EOF
3193 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3194 #include <stdlib.h>
3195 EOF
3196
3197 add_host_cppflags -D_ISOC99_SOURCE
3198 check_host_cflags -std=c99
3199 check_host_cflags -Wall
3200 check_host_cflags -O3
3201
3202 check_64bit(){
3203     arch32=$1
3204     arch64=$2
3205     expr=$3
3206     check_code cc "" "int test[2*($expr) - 1]" &&
3207         subarch=$arch64 || subarch=$arch32
3208 }
3209
3210 case "$arch" in
3211     aarch64|alpha|ia64)
3212         spic=$shared
3213     ;;
3214     mips)
3215         check_64bit mips mips64 '_MIPS_SIM > 1'
3216         spic=$shared
3217     ;;
3218     parisc)
3219         check_64bit parisc parisc64 'sizeof(void *) > 4'
3220         spic=$shared
3221     ;;
3222     ppc)
3223         check_64bit ppc ppc64 'sizeof(void *) > 4'
3224         spic=$shared
3225     ;;
3226     sparc)
3227         check_64bit sparc sparc64 'sizeof(void *) > 4'
3228         spic=$shared
3229     ;;
3230     x86)
3231         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3232         if test "$subarch" = "x86_64"; then
3233             spic=$shared
3234         fi
3235     ;;
3236 esac
3237
3238 enable $subarch
3239 enabled spic && enable_weak pic
3240
3241 # OS specific
3242 case $target_os in
3243     aix)
3244         SHFLAGS=-shared
3245         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3246         enabled shared && add_ldflags -Wl,-brtl
3247         ;;
3248     haiku)
3249         prefix_default="/boot/common"
3250         network_extralibs="-lnetwork"
3251         host_libs=
3252         ;;
3253     sunos)
3254         SHFLAGS='-shared -Wl,-h,$$(@F)'
3255         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3256         network_extralibs="-lsocket -lnsl"
3257         # When using suncc to build, the Solaris linker will mark
3258         # an executable with each instruction set encountered by
3259         # the Solaris assembler.  As our libraries contain their own
3260         # guards for processor-specific code, instead suppress
3261         # generation of the HWCAPS ELF section on Solaris x86 only.
3262         enabled_all suncc x86 &&
3263             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3264             add_ldflags -Wl,-M,mapfile
3265         nm_default='nm -P -g'
3266         ;;
3267     netbsd)
3268         disable symver
3269         oss_indev_extralibs="-lossaudio"
3270         oss_outdev_extralibs="-lossaudio"
3271         ;;
3272     openbsd|bitrig)
3273         disable symver
3274         SHFLAGS='-shared'
3275         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3276         SLIB_INSTALL_LINKS=
3277         oss_indev_extralibs="-lossaudio"
3278         oss_outdev_extralibs="-lossaudio"
3279         ;;
3280     dragonfly)
3281         disable symver
3282         ;;
3283     freebsd)
3284         ;;
3285     bsd/os)
3286         add_extralibs -lpoll -lgnugetopt
3287         ;;
3288     darwin)
3289         gas="gas-preprocessor.pl $cc"
3290         enabled ppc && add_asflags -force_cpusubtype_ALL
3291         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3292         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3293         add_ldflags -Wl,-dynamic,-search_paths_first
3294         SLIBSUF=".dylib"
3295         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3296         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3297         objformat="macho"
3298         enabled x86_64 && objformat="macho64"
3299         enabled_any pic shared ||
3300             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3301         ;;
3302     mingw32*)
3303         if test $target_os = "mingw32ce"; then
3304             disable network
3305         else
3306             target_os=mingw32
3307         fi
3308         LIBTARGET=i386
3309         if enabled x86_64; then
3310             LIBTARGET="i386:x86-64"
3311         elif enabled arm; then
3312             LIBTARGET=arm-wince
3313         fi
3314         check_ldflags -Wl,--nxcompat
3315         check_ldflags -Wl,--dynamicbase
3316         shlibdir_default="$bindir_default"
3317         SLIBPREF=""
3318         SLIBSUF=".dll"
3319         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3320         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3321         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3322         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3323         SLIB_INSTALL_LINKS=
3324         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3325         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3326         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3327         objformat="win32"
3328         dlltool="${cross_prefix}dlltool"
3329         ranlib=:
3330         enable dos_paths
3331         ;;
3332     win32|win64)
3333         disable symver
3334         if enabled shared; then
3335             # Link to the import library instead of the normal static library
3336             # for shared libs.
3337             LD_LIB='%.lib'
3338             # Cannot build both shared and static libs with MSVC or icl.
3339             disable static
3340         fi
3341         shlibdir_default="$bindir_default"
3342         SLIBPREF=""
3343         SLIBSUF=".dll"
3344         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3345         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3346         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3347         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3348         SLIB_INSTALL_LINKS=
3349         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3350         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3351         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3352         objformat="win32"
3353         ranlib=:
3354         enable dos_paths
3355         ;;
3356     cygwin*)
3357         target_os=cygwin
3358         shlibdir_default="$bindir_default"
3359         SLIBPREF="cyg"
3360         SLIBSUF=".dll"
3361         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3362         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3363         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3364         SLIB_INSTALL_LINKS=
3365         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3366         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3367         objformat="win32"
3368         enable dos_paths
3369         ;;
3370     *-dos|freedos|opendos)
3371         network_extralibs="-lsocket"
3372         objformat="coff"
3373         enable dos_paths
3374         add_cppflags -U__STRICT_ANSI__
3375         ;;
3376     linux)
3377         enable dv1394
3378         ;;
3379     irix*)
3380         target_os=irix
3381         ranlib="echo ignoring ranlib"
3382         ;;
3383     os/2*)
3384         ln_s="cp -f"
3385         objformat="aout"
3386         add_cppflags -D_GNU_SOURCE
3387         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3388         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3389         LIBSUF="_s.a"
3390         SLIBPREF=""
3391         SLIBSUF=".dll"
3392         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3393         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3394         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3395             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3396             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3397             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3398             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3399             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3400         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3401             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3402         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3403         enable dos_paths
3404         ;;
3405     gnu/kfreebsd)
3406         add_cppflags -D_BSD_SOURCE
3407         ;;
3408     gnu)
3409         ;;
3410     qnx)
3411         add_cppflags -D_QNX_SOURCE
3412         network_extralibs="-lsocket"
3413         ;;
3414     symbian)
3415         SLIBSUF=".dll"
3416         enable dos_paths
3417         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3418         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3419         add_ldflags -Wl,--target1-abs,--no-undefined \
3420                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3421                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3422         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3423                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3424                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3425         ;;
3426     osf1)
3427         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3428         ;;
3429     minix)
3430         ;;
3431     plan9)
3432         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3433                      -D_REENTRANT_SOURCE        \
3434                      -D_RESEARCH_SOURCE         \
3435                      -DFD_SETSIZE=96            \
3436                      -DHAVE_SOCK_OPTS
3437         add_compat strtod.o strtod=avpriv_strtod
3438         network_extralibs='-lbsd'
3439         exeobjs=compat/plan9/main.o
3440         disable avserver
3441         cp_f='cp'
3442         ;;
3443     none)
3444         ;;
3445     *)
3446         die "Unknown OS '$target_os'."
3447         ;;
3448 esac
3449
3450 # determine libc flavour
3451
3452 probe_libc(){
3453     pfx=$1
3454     pfx_no_=${pfx%_}
3455     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3456     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3457         eval ${pfx}libc_type=uclibc
3458         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3459     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3460         eval ${pfx}libc_type=glibc
3461         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3462     # MinGW headers can be installed on Cygwin, so check for newlib first.
3463     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3464         eval ${pfx}libc_type=newlib
3465         add_${pfx}cppflags -U__STRICT_ANSI__
3466     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3467     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3468         eval ${pfx}libc_type=mingw64
3469         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3470         eval test \$${pfx_no_}cc_type = "gcc" &&
3471             add_${pfx}cppflags -D__printf__=__gnu_printf__
3472     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3473          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3474         eval ${pfx}libc_type=mingw32
3475         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3476             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3477             die "ERROR: MinGW32 runtime version must be >= 3.15."
3478         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3479         eval test \$${pfx_no_}cc_type = "gcc" &&
3480             add_${pfx}cppflags -D__printf__=__gnu_printf__
3481     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3482         eval ${pfx}libc_type=msvcrt
3483         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3484         # 0x601 by default unless something else is set by the user.
3485         # This can easily lead to us detecting functions only present
3486         # in such new versions and producing binaries requiring windows 7.0.
3487         # Therefore explicitly set the default to XP unless the user has
3488         # set something else on the command line.
3489         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3490             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3491     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3492         eval ${pfx}libc_type=klibc
3493     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3494         eval ${pfx}libc_type=bionic
3495     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3496         eval ${pfx}libc_type=solaris
3497         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3498     fi
3499 }
3500
3501 probe_libc
3502 test -n "$libc_type" && enable libc_$libc_type
3503 probe_libc host_
3504 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3505
3506 case $libc_type in
3507     bionic)
3508         add_compat strtod.o strtod=avpriv_strtod
3509         ;;
3510     msvcrt)
3511         add_compat strtod.o strtod=avpriv_strtod
3512         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3513                                      _snprintf=avpriv_snprintf  \
3514                                      vsnprintf=avpriv_vsnprintf
3515         ;;
3516 esac
3517
3518 # hacks for compiler/libc/os combinations
3519
3520 if enabled_all tms470 libc_glibc; then
3521     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3522     add_cppflags -D__USER_LABEL_PREFIX__=
3523     add_cppflags -D__builtin_memset=memset
3524     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3525     add_cflags   -pds=48    # incompatible redefinition of macro
3526 fi
3527
3528 if enabled_all ccc libc_glibc; then
3529     add_ldflags -Wl,-z,now  # calls to libots crash without this
3530 fi
3531
3532 esc(){
3533     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3534 }
3535
3536 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3537
3538 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3539
3540 set_default $PATHS_LIST
3541 set_default nm
3542
3543 # we need to build at least one lib type
3544 if ! enabled_any static shared; then
3545     cat <<EOF
3546 At least one library type must be built.
3547 Specify --enable-static to build the static libraries or --enable-shared to
3548 build the shared libraries as well. To only build the shared libraries specify
3549 --disable-static in addition to --enable-shared.
3550 EOF
3551     exit 1;
3552 fi
3553
3554 die_license_disabled() {
3555     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3556 }
3557
3558 die_license_disabled gpl libcdio
3559 die_license_disabled gpl libx264
3560 die_license_disabled gpl libx265
3561 die_license_disabled gpl libxavs
3562 die_license_disabled gpl libxvid
3563 die_license_disabled gpl x11grab
3564
3565 die_license_disabled nonfree libfaac
3566 die_license_disabled nonfree libfdk_aac
3567 die_license_disabled nonfree openssl
3568
3569 die_license_disabled version3 libopencore_amrnb
3570 die_license_disabled version3 libopencore_amrwb
3571 die_license_disabled version3 libvo_aacenc
3572 die_license_disabled version3 libvo_amrwbenc
3573
3574 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3575
3576 disabled optimizations || check_cflags -fomit-frame-pointer
3577
3578 enable_weak_pic() {
3579     disabled pic && return
3580     enable pic
3581     add_cppflags -DPIC
3582     case "$target_os" in
3583     mingw*|cygwin*)
3584         ;;
3585     *)
3586         add_cflags -fPIC
3587         ;;
3588     esac
3589     add_asflags  -fPIC
3590 }
3591
3592 enabled pic && enable_weak_pic
3593
3594 check_cc <<EOF || die "Symbol mangling check failed."
3595 int ff_extern;
3596 EOF
3597 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3598 extern_prefix=${sym%%ff_extern*}
3599
3600 check_cc <<EOF && enable_weak inline_asm
3601 void foo(void) { __asm__ volatile ("" ::); }
3602 EOF
3603
3604 _restrict=
3605 for restrict_keyword in restrict __restrict__ __restrict; do
3606     check_cc <<EOF && _restrict=$restrict_keyword && break
3607 void foo(char * $restrict_keyword p);
3608 EOF
3609 done
3610
3611 check_cc <<EOF && enable pragma_deprecated
3612 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3613 EOF
3614
3615 check_cc <<EOF && enable attribute_packed
3616 struct { int x; } __attribute__((packed)) x;
3617 EOF
3618
3619 check_cc <<EOF && enable attribute_may_alias
3620 union { int x; } __attribute__((may_alias)) x;
3621 EOF
3622
3623 check_cc <<EOF || die "endian test failed"
3624 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3625 EOF
3626 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3627
3628 check_inline_asm inline_asm_labels '"1:\n"'
3629
3630 if enabled aarch64; then
3631     # internal assembler in clang 3.3 does not support this instruction
3632     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
3633     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
3634
3635     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3636
3637 elif enabled alpha; then
3638
3639     check_cflags -mieee
3640
3641 elif enabled arm; then
3642
3643     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3644     enabled thumb && check_cflags -mthumb || check_cflags -marm
3645     nogas=die
3646
3647     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3648         enable vfp_args
3649     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3650         case "${cross_prefix:-$cc}" in
3651             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3652             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3653 __asm__ (".eabi_attribute 28, 1");
3654 int main(void) { return 0; }
3655 EOF
3656         esac
3657         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3658     fi
3659
3660     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3661     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3662     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3663     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3664     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3665     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3666
3667     [ $target_os = linux ] ||
3668         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3669             $ARCH_EXT_LIST_ARM
3670
3671     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3672     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3673
3674     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3675
3676 elif enabled mips; then
3677
3678     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3679
3680 elif enabled parisc; then
3681
3682     if enabled gcc; then
3683         case $($cc -dumpversion) in
3684             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3685         esac
3686     fi
3687
3688 elif enabled ppc; then
3689
3690     enable local_aligned_8 local_aligned_16
3691
3692     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3693     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3694     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3695     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3696
3697     # AltiVec flags: The FSF version of GCC differs from the Apple version
3698     if enabled altivec; then
3699         nogas=warn
3700         check_cflags -maltivec -mabi=altivec &&
3701         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3702         check_cflags -faltivec
3703
3704         # check if our compiler supports Motorola AltiVec C API
3705         check_cc <<EOF || disable altivec
3706 $inc_altivec_h
3707 int main(void) {
3708     vector signed int v1 = (vector signed int) { 0 };
3709     vector signed int v2 = (vector signed int) { 1 };
3710     v1 = vec_add(v1, v2);
3711     return 0;
3712 }
3713 EOF
3714
3715         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3716     fi
3717
3718 elif enabled sparc; then
3719
3720     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3721
3722 elif enabled x86; then
3723
3724     check_builtin rdtsc    intrin.h   "__rdtsc()"
3725     check_builtin mm_empty mmintrin.h "_mm_empty()"
3726
3727     enable local_aligned_8 local_aligned_16
3728
3729     # check whether EBP is available on x86
3730     # As 'i' is stored on the stack, this program will crash
3731     # if the base pointer is used to access it because the
3732     # base pointer is cleared in the inline assembly code.
3733     check_exec_crash <<EOF && enable ebp_available
3734 volatile int i=0;
3735 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3736 return i;
3737 EOF
3738
3739     # check whether EBX is available on x86
3740     check_inline_asm ebx_available '""::"b"(0)' &&
3741         check_inline_asm ebx_available '"":::"%ebx"'
3742
3743     # check whether xmm clobbers are supported
3744     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3745
3746     # check whether binutils is new enough to compile SSSE3/MMXEXT
3747     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3748     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3749
3750     if ! disabled_any asm mmx yasm; then
3751         if check_cmd $yasmexe --version; then
3752             enabled x86_64 && yasm_extra="-m amd64"
3753             yasm_debug="-g dwarf2"
3754         elif check_cmd nasm -v; then
3755             yasmexe=nasm
3756             yasm_debug="-g -F dwarf"
3757             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3758         fi
3759
3760         YASMFLAGS="-f $objformat $yasm_extra"
3761         enabled pic               && append YASMFLAGS "-DPIC"
3762         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3763         case "$objformat" in
3764             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3765         esac
3766
3767         check_yasm "movbe ecx, [5]" && enable yasm ||
3768             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3769         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
3770         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
3771         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3772         check_yasm "CPU amdnop" || disable cpunop
3773     fi
3774
3775     case "$cpu" in
3776         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3777             disable fast_clz
3778         ;;
3779     esac
3780
3781 fi
3782
3783 if enabled asm; then
3784     as=${gas:=$as}
3785     check_as <<EOF && enable gnu_as || \
3786         $nogas "GNU assembler not found, install gas-preprocessor"
3787 .macro m n
3788 \n: .int 0
3789 .endm
3790 m x
3791 EOF
3792 fi
3793
3794 check_ldflags -Wl,--as-needed
3795
3796 if check_func dlopen; then
3797     ldl=
3798 elif check_func dlopen -ldl; then
3799     ldl=-ldl
3800 fi
3801
3802 if ! disabled network; then
3803     check_type "sys/types.h sys/socket.h" socklen_t
3804     check_type netdb.h "struct addrinfo"
3805     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3806     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3807     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3808     check_type netinet/in.h "struct sockaddr_in6"
3809     check_type poll.h "struct pollfd"
3810     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3811     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3812     check_type netinet/sctp.h "struct sctp_event_subscribe"
3813     check_func getaddrinfo $network_extralibs
3814     check_func getservbyport $network_extralibs
3815     check_func inet_aton $network_extralibs
3816     # Prefer arpa/inet.h over winsock2
3817     if check_header arpa/inet.h ; then
3818         check_func closesocket
3819     elif check_header winsock2.h ; then
3820         check_func_headers winsock2.h closesocket -lws2 &&
3821             network_extralibs="-lws2" ||
3822         { check_func_headers winsock2.h closesocket -lws2_32 &&
3823             network_extralibs="-lws2_32"; } || disable winsock2_h network
3824         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3825         check_type ws2tcpip.h socklen_t
3826         check_type ws2tcpip.h "struct addrinfo"
3827         check_type ws2tcpip.h "struct group_source_req"
3828         check_type ws2tcpip.h "struct ip_mreq_source"
3829         check_type ws2tcpip.h "struct ipv6_mreq"
3830         check_type winsock2.h "struct pollfd"
3831         check_type ws2tcpip.h "struct sockaddr_in6"
3832         check_type ws2tcpip.h "struct sockaddr_storage"
3833         check_struct winsock2.h "struct sockaddr" sa_len
3834     else
3835         disable network
3836     fi
3837 fi
3838
3839 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3840 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3841
3842 check_func  fcntl
3843 check_func  fork
3844 check_func_headers stdlib.h getenv
3845 check_func  gethrtime
3846 check_func  getopt
3847 check_func  getrusage
3848 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3849 check_func  gettimeofday
3850 check_func  isatty
3851 check_func  localtime_r
3852 check_func  ${malloc_prefix}memalign            && enable memalign
3853 check_func  mkstemp
3854 check_func  mmap
3855 check_func  mprotect
3856 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3857 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3858 check_func  setrlimit
3859 check_func  strerror_r
3860 check_func  strptime
3861 check_func  strtok_r
3862 check_func  sched_getaffinity
3863 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3864 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3865 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3866 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3867 check_func  sysconf
3868 check_func  sysctl
3869 check_func  usleep
3870 check_func_headers io.h setmode
3871 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3872 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3873 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3874 check_func_headers windows.h GetProcessAffinityMask
3875 check_func_headers windows.h GetProcessTimes
3876 check_func_headers windows.h GetSystemTimeAsFileTime
3877 check_func_headers windows.h MapViewOfFile
3878 check_func_headers windows.h SetConsoleTextAttribute
3879 check_func_headers windows.h Sleep
3880 check_func_headers windows.h VirtualAlloc
3881
3882 check_header direct.h
3883 check_header dlfcn.h
3884 check_header dxva.h
3885 check_header dxva2api.h
3886 check_header io.h
3887 check_header malloc.h
3888 check_header poll.h
3889 check_header sys/mman.h
3890 check_header sys/param.h
3891 check_header sys/resource.h
3892 check_header sys/select.h
3893 check_header sys/time.h
3894 check_header sys/un.h
3895 check_header unistd.h
3896 check_header vdpau/vdpau.h
3897 check_header vdpau/vdpau_x11.h
3898 check_header VideoDecodeAcceleration/VDADecoder.h
3899 check_header windows.h
3900 check_header X11/extensions/XvMClib.h
3901
3902 if ! disabled w32threads && ! enabled pthreads; then
3903     check_func_headers "windows.h process.h" _beginthreadex &&
3904         enable w32threads || disable w32threads
3905 fi
3906
3907 # check for some common methods of building with pthread support
3908 # do this before the optional library checks as some of them require pthreads
3909 if ! disabled pthreads && ! enabled w32threads; then
3910     enable pthreads
3911     if check_func pthread_join -pthread; then
3912         add_cflags -pthread
3913         add_extralibs -pthread
3914     elif check_func pthread_join -pthreads; then
3915         add_cflags -pthreads
3916         add_extralibs -pthreads
3917     elif check_func pthread_join -lpthreadGC2; then
3918         add_extralibs -lpthreadGC2
3919     elif check_lib pthread.h pthread_join -lpthread; then
3920         :
3921     elif ! check_func pthread_join; then
3922         disable pthreads
3923     fi
3924 fi
3925
3926 for thread in $THREADS_LIST; do
3927     if enabled $thread; then
3928         test -n "$thread_type" &&
3929             die "ERROR: Only one thread type must be selected." ||
3930             thread_type="$thread"
3931     fi
3932 done
3933
3934 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3935 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3936
3937 check_lib math.h sin -lm && LIBM="-lm"
3938 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3939
3940 atan2f_args=2
3941 ldexpf_args=2
3942 powf_args=2
3943
3944 for func in $MATH_FUNCS; do
3945     eval check_mathfunc $func \${${func}_args:-1}
3946 done
3947
3948 # these are off by default, so fail if requested and not available
3949 enabled avisynth          && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
3950                                { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
3951                                die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
3952 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3953 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3954 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3955 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3956 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
3957 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3958                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3959                                done || die "ERROR: libgsm not found"; }
3960 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3961 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3962 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3963 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3964 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3965 enabled libopenjpeg       && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3966 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3967 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3968 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3969 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3970 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
3971 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3972 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3973 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3974 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3975 enabled libvpx            && {
3976     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3977                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
3978     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3979                                     die "ERROR: libvpx encoder version must be >=0.9.6"; }
3980     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3981     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3982 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
3983 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
3984 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
3985                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3986                                die "ERROR: libx264 version must be >= 0.118."; }
3987 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
3988                              { check_cpp_condition x265.h "X265_BUILD >= 7" ||
3989                                die "ERROR: libx265 version must be >= 7."; }
3990 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
3991 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
3992 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3993                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3994                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3995                                die "ERROR: openssl not found"; }
3996
3997 if enabled gnutls; then
3998     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3999     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4000 fi
4001
4002 # libdc1394 check
4003 if enabled libdc1394; then
4004     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4005         enable libdc1394_2; } ||
4006     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4007         enable libdc1394_1; } ||
4008     die "ERROR: No version of libdc1394 found "
4009 fi
4010
4011 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4012     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4013     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4014     enable sdl
4015 fi
4016
4017 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4018 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4019
4020 check_header linux/fb.h
4021 check_header linux/videodev2.h
4022 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4023
4024 check_header sys/videoio.h
4025
4026 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4027 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4028 # w32api 3.12 had it defined wrong
4029 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4030
4031 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4032 { check_header dev/bktr/ioctl_meteor.h &&
4033   check_header dev/bktr/ioctl_bt848.h; } ||
4034 { check_header machine/ioctl_meteor.h &&
4035   check_header machine/ioctl_bt848.h; } ||
4036 { check_header dev/video/meteor/ioctl_meteor.h &&
4037   check_header dev/video/bktr/ioctl_bt848.h; } ||
4038 check_header dev/ic/bt8xx.h
4039
4040 check_header sndio.h
4041 check_header sys/soundcard.h
4042 check_header soundcard.h
4043
4044 enabled_any alsa_indev alsa_outdev &&
4045     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4046
4047 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4048     check_func jack_port_get_latency_range -ljack
4049
4050 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4051
4052 if enabled libcdio; then
4053     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4054     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4055 fi
4056
4057 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4058
4059 enabled x11grab                                           &&
4060 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4061 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4062 { enabled xlib || die "ERROR: Xlib not found"; }
4063
4064 enabled vdpau &&
4065     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4066     disable vdpau
4067
4068 enabled vdpau && enabled xlib &&
4069     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4070     prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4071     enable vdpau_x11
4072
4073 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4074
4075 # add some useful compiler flags if supported
4076 check_cflags -Wdeclaration-after-statement
4077 check_cflags -Wall
4078 check_cflags -Wdisabled-optimization
4079 check_cflags -Wpointer-arith
4080 check_cflags -Wredundant-decls
4081 check_cflags -Wcast-qual
4082 check_cflags -Wwrite-strings
4083 check_cflags -Wtype-limits
4084 check_cflags -Wundef
4085 check_cflags -Wmissing-prototypes
4086 check_cflags -Wstrict-prototypes
4087 enabled extra_warnings && check_cflags -Winline
4088
4089 check_disable_warning(){
4090     warning_flag=-W${1#-Wno-}
4091     test_cflags $warning_flag && add_cflags $1
4092 }
4093
4094 check_disable_warning -Wno-parentheses
4095 check_disable_warning -Wno-switch
4096 check_disable_warning -Wno-format-zero-length
4097 check_disable_warning -Wno-pointer-sign
4098
4099 # add some linker flags
4100 check_ldflags -Wl,--warn-common
4101 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4102 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4103
4104 # add some strip flags
4105 # -wN '..@*' is more selective than -x, but not available everywhere.
4106 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4107
4108 enabled neon_clobber_test &&
4109     check_ldflags -Wl,--wrap,avcodec_open2              \
4110                   -Wl,--wrap,avcodec_decode_audio4      \
4111                   -Wl,--wrap,avcodec_decode_video2      \
4112                   -Wl,--wrap,avcodec_decode_subtitle2   \
4113                   -Wl,--wrap,avcodec_encode_audio2      \
4114                   -Wl,--wrap,avcodec_encode_video2      \
4115                   -Wl,--wrap,avcodec_encode_subtitle    \
4116                   -Wl,--wrap,avresample_convert ||
4117     disable neon_clobber_test
4118
4119 enabled xmm_clobber_test &&
4120     check_ldflags -Wl,--wrap,avcodec_open2              \
4121                   -Wl,--wrap,avcodec_decode_audio4      \
4122                   -Wl,--wrap,avcodec_decode_video2      \
4123                   -Wl,--wrap,avcodec_decode_subtitle2   \
4124                   -Wl,--wrap,avcodec_encode_audio2      \
4125                   -Wl,--wrap,avcodec_encode_video2      \
4126                   -Wl,--wrap,avcodec_encode_subtitle    \
4127                   -Wl,--wrap,avresample_convert         \
4128                   -Wl,--wrap,sws_scale ||
4129     disable xmm_clobber_test
4130
4131 echo "X{};" > $TMPV
4132 if test_ldflags -Wl,--version-script,$TMPV; then
4133     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4134     check_cc <<EOF && enable symver_asm_label
4135 void ff_foo(void) __asm__ ("av_foo@VERSION");
4136 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4137 EOF
4138     check_cc <<EOF && enable symver_gnu_asm
4139 __asm__(".symver ff_foo,av_foo@VERSION");
4140 void ff_foo(void) {}
4141 EOF
4142 fi
4143
4144 if [ -z "$optflags" ]; then
4145     if enabled small; then
4146         optflags=$cflags_size
4147     elif enabled optimizations; then
4148         optflags=$cflags_speed
4149     else
4150         optflags=$cflags_noopt
4151     fi
4152 fi
4153
4154 check_optflags(){
4155     check_cflags "$@"
4156     enabled lto && check_ldflags "$@"
4157 }
4158
4159
4160 if enabled lto; then
4161     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4162     check_cflags  -flto
4163     check_ldflags -flto $cpuflags
4164 fi
4165
4166 check_optflags $optflags
4167 check_optflags -fno-math-errno
4168 check_optflags -fno-signed-zeros
4169
4170 if enabled icc; then
4171     # Just warnings, no remarks
4172     check_cflags -w1
4173     # -wd: Disable following warnings
4174     # 144, 167, 556: -Wno-pointer-sign
4175     # 1292: attribute "foo" ignored
4176     # 1419: external declaration in primary source file
4177     # 10006: ignoring unknown option -fno-signed-zeros
4178     # 10148: ignoring unknown option -Wno-parentheses
4179     # 10156: ignoring option '-W'; no argument required
4180     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4181     # 11030: Warning unknown option --as-needed
4182     # 10156: ignoring option '-export'; no argument required
4183     check_ldflags -wd10156,11030
4184     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4185     enable ebp_available
4186     if enabled x86_32; then
4187         icc_version=$($cc -dumpversion)
4188         test ${icc_version%%.*} -ge 11 &&
4189             check_cflags -falign-stack=maintain-16-byte ||
4190             disable aligned_stack
4191     fi
4192 elif enabled ccc; then
4193     # disable some annoying warnings
4194     add_cflags -msg_disable bitnotint
4195     add_cflags -msg_disable mixfuncvoid
4196     add_cflags -msg_disable nonstandcast
4197     add_cflags -msg_disable unsupieee
4198 elif enabled gcc; then
4199     check_optflags -fno-tree-vectorize
4200     check_cflags -Werror=implicit-function-declaration
4201     check_cflags -Werror=missing-prototypes
4202     check_cflags -Werror=return-type
4203     check_cflags -Werror=declaration-after-statement
4204     check_cflags -Werror=vla
4205     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4206 elif enabled llvm_gcc; then
4207     check_cflags -mllvm -stack-alignment=16
4208 elif enabled clang; then
4209     check_cflags -mllvm -stack-alignment=16
4210     check_cflags -Qunused-arguments
4211     check_cflags -Werror=implicit-function-declaration
4212     check_cflags -Werror=missing-prototypes
4213     check_cflags -Werror=return-type
4214 elif enabled cparser; then
4215     add_cflags -Wno-missing-variable-declarations
4216     add_cflags -Wno-empty-statement
4217 elif enabled armcc; then
4218     # 2523: use of inline assembler is deprecated
4219     add_cflags -W${armcc_opt},--diag_suppress=2523
4220     add_cflags -W${armcc_opt},--diag_suppress=1207
4221     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4222     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4223     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4224     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4225 elif enabled tms470; then
4226     add_cflags -pds=824 -pds=837
4227     disable inline_asm
4228 elif enabled pathscale; then
4229     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4230 elif enabled_any msvc icl; then
4231     enabled x86_32 && disable aligned_stack
4232     enabled_all x86_32 debug && add_cflags -Oy-
4233     enabled debug && add_ldflags -debug
4234     enable pragma_deprecated
4235     if enabled icl; then
4236         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4237         # (correctly) on icl 13.x.
4238         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4239             add_cflags -Qansi-alias
4240         # icl will pass the inline asm tests but inline asm is currently
4241         # not supported (build will fail)
4242         disable inline_asm
4243     fi
4244 fi
4245
4246 case $as_type in
4247     clang)
4248         add_asflags -Qunused-arguments
4249     ;;
4250 esac
4251
4252 case $ld_type in
4253     clang)
4254         check_ldflags -Qunused-arguments
4255     ;;
4256 esac
4257
4258 case $target_os in
4259     osf1)
4260         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4261     ;;
4262     plan9)
4263         add_cppflags -Dmain=plan9_main
4264     ;;
4265 esac
4266
4267 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4268
4269 check_deps $CONFIG_LIST       \
4270            $CONFIG_EXTRA      \
4271            $HAVE_LIST         \
4272            $ALL_COMPONENTS    \
4273
4274 ! enabled_any memalign posix_memalign aligned_malloc &&
4275     enabled_any $need_memalign && enable memalign_hack
4276
4277 echo "install prefix            $prefix"
4278 echo "source path               $source_path"
4279 echo "C compiler                $cc"
4280 echo "C library                 $libc_type"
4281 if test "$host_cc" != "$cc"; then
4282     echo "host C compiler           $host_cc"
4283     echo "host C library            $host_libc_type"
4284 fi
4285 echo "ARCH                      $arch ($cpu)"
4286 if test "$build_suffix" != ""; then
4287     echo "build suffix              $build_suffix"
4288 fi
4289 if test "$extra_version" != ""; then
4290     echo "version string suffix     $extra_version"
4291 fi
4292 echo "big-endian                ${bigendian-no}"
4293 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4294 if enabled x86; then
4295     echo "${yasmexe}                      ${yasm-no}"
4296     echo "MMX enabled               ${mmx-no}"
4297     echo "MMXEXT enabled            ${mmxext-no}"
4298     echo "3DNow! enabled            ${amd3dnow-no}"
4299     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4300     echo "SSE enabled               ${sse-no}"
4301     echo "SSSE3 enabled             ${ssse3-no}"
4302     echo "AVX enabled               ${avx-no}"
4303     echo "XOP enabled               ${xop-no}"
4304     echo "FMA3 enabled              ${fma3-no}"
4305     echo "FMA4 enabled              ${fma4-no}"
4306     echo "i686 features enabled     ${i686-no}"
4307     echo "CMOV is fast              ${fast_cmov-no}"
4308     echo "EBX available             ${ebx_available-no}"
4309     echo "EBP available             ${ebp_available-no}"
4310 fi
4311 if enabled aarch64; then
4312     echo "NEON enabled              ${neon-no}"
4313     echo "VFP enabled               ${vfp-no}"
4314 fi
4315 if enabled arm; then
4316     echo "ARMv5TE enabled           ${armv5te-no}"
4317     echo "ARMv6 enabled             ${armv6-no}"
4318     echo "ARMv6T2 enabled           ${armv6t2-no}"
4319     echo "VFP enabled               ${vfp-no}"
4320     echo "NEON enabled              ${neon-no}"
4321 fi
4322 if enabled ppc; then
4323     echo "AltiVec enabled           ${altivec-no}"
4324     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4325     echo "dcbzl available           ${dcbzl-no}"
4326 fi
4327 if enabled sparc; then
4328     echo "VIS enabled               ${vis-no}"
4329 fi
4330 echo "debug symbols             ${debug-no}"
4331 echo "optimize for size         ${small-no}"
4332 echo "optimizations             ${optimizations-no}"
4333 echo "static                    ${static-no}"
4334 echo "shared                    ${shared-no}"
4335 echo "new filter support        ${avfilter-no}"
4336 echo "network support           ${network-no}"
4337 echo "threading support         ${thread_type-no}"
4338 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4339 echo "SDL support               ${sdl-no}"
4340 test -n "$random_seed" &&
4341     echo "random seed               ${random_seed}"
4342 echo
4343
4344 echo "External libraries:"
4345 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4346 echo
4347
4348 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4349     echo "Enabled ${type}s:"
4350     eval list=\$$(toupper $type)_LIST
4351     print_enabled '_*' $list | print_3_columns
4352     echo
4353 done
4354
4355 license="LGPL version 2.1 or later"
4356 if enabled nonfree; then
4357     license="nonfree and unredistributable"
4358 elif enabled gplv3; then
4359     license="GPL version 3 or later"
4360 elif enabled lgplv3; then
4361     license="LGPL version 3 or later"
4362 elif enabled gpl; then
4363     license="GPL version 2 or later"
4364 fi
4365
4366 echo "License: $license"
4367
4368 echo "Creating config.mak and config.h..."
4369
4370 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4371
4372 config_files="$TMPH config.mak"
4373
4374 cat > config.mak <<EOF
4375 # Automatically generated by configure - do not modify!
4376 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4377 prefix=$prefix
4378 LIBDIR=\$(DESTDIR)$libdir
4379 SHLIBDIR=\$(DESTDIR)$shlibdir
4380 INCDIR=\$(DESTDIR)$incdir
4381 BINDIR=\$(DESTDIR)$bindir
4382 DATADIR=\$(DESTDIR)$datadir
4383 DOCDIR=\$(DESTDIR)$docdir
4384 MANDIR=\$(DESTDIR)$mandir
4385 SRC_PATH=$source_path
4386 CC_IDENT=$cc_ident
4387 ARCH=$arch
4388 CC=$cc
4389 AS=$as
4390 LD=$ld
4391 DEPCC=$dep_cc
4392 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4393 DEPAS=$as
4394 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4395 YASM=$yasmexe
4396 DEPYASM=$yasmexe
4397 AR=$ar
4398 ARFLAGS=$arflags
4399 AR_O=$ar_o
4400 RANLIB=$ranlib
4401 STRIP=$strip
4402 LN_S=$ln_s
4403 CPPFLAGS=$CPPFLAGS
4404 CFLAGS=$CFLAGS
4405 ASFLAGS=$ASFLAGS
4406 AS_C=$AS_C
4407 AS_O=$AS_O
4408 CC_C=$CC_C
4409 CC_E=$CC_E
4410 CC_O=$CC_O
4411 LD_O=$LD_O
4412 LD_LIB=$LD_LIB
4413 LD_PATH=$LD_PATH
4414 DLLTOOL=$dlltool
4415 LDFLAGS=$LDFLAGS
4416 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4417 STRIPFLAGS=$STRIPFLAGS
4418 YASMFLAGS=$YASMFLAGS
4419 BUILDSUF=$build_suffix
4420 FULLNAME=$FULLNAME
4421 LIBPREF=$LIBPREF
4422 LIBSUF=$LIBSUF
4423 LIBNAME=$LIBNAME
4424 SLIBPREF=$SLIBPREF
4425 SLIBSUF=$SLIBSUF
4426 EXESUF=$EXESUF
4427 EXTRA_VERSION=$extra_version
4428 CCDEP=$CCDEP
4429 CCDEP_FLAGS=$CCDEP_FLAGS
4430 ASDEP=$ASDEP
4431 ASDEP_FLAGS=$ASDEP_FLAGS
4432 CC_DEPFLAGS=$CC_DEPFLAGS
4433 AS_DEPFLAGS=$AS_DEPFLAGS
4434 HOSTCC=$host_cc
4435 HOSTLD=$host_ld
4436 HOSTCFLAGS=$host_cflags
4437 HOSTCPPFLAGS=$host_cppflags
4438 HOSTEXESUF=$HOSTEXESUF
4439 HOSTLDFLAGS=$host_ldflags
4440 HOSTLIBS=$host_libs
4441 DEPHOSTCC=$host_cc
4442 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4443 HOSTCCDEP=$HOSTCCDEP
4444 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4445 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4446 HOSTCC_C=$HOSTCC_C
4447 HOSTCC_O=$HOSTCC_O
4448 HOSTLD_O=$HOSTLD_O
4449 TARGET_EXEC=$target_exec $target_exec_args
4450 TARGET_PATH=$target_path
4451 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4452 CFLAGS-avplay=$sdl_cflags
4453 ZLIB=$($ldflags_filter -lz)
4454 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4455 EXTRALIBS=$extralibs
4456 COMPAT_OBJS=$compat_objs
4457 EXEOBJS=$exeobjs
4458 INSTALL=install
4459 LIBTARGET=${LIBTARGET}
4460 SLIBNAME=${SLIBNAME}
4461 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4462 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4463 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4464 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4465 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4466 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4467 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4468 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4469 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4470 EOF
4471
4472 get_version(){
4473     lcname=lib${1}
4474     name=$(toupper $lcname)
4475     file=$source_path/$lcname/version.h
4476     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4477     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4478     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4479     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4480     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4481 }
4482
4483 map 'get_version $v' $LIBRARY_LIST
4484
4485 print_program_libs(){
4486     eval "program_libs=\$${1}_libs"
4487     eval echo "LIBS-${1}=${program_libs}" >> config.mak
4488 }
4489
4490 map 'print_program_libs $v' $PROGRAM_LIST
4491
4492 cat > $TMPH <<EOF
4493 /* Automatically generated by configure - do not modify! */
4494 #ifndef LIBAV_CONFIG_H
4495 #define LIBAV_CONFIG_H
4496 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4497 #define LIBAV_LICENSE "$(c_escape $license)"
4498 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4499 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4500 #define restrict $_restrict
4501 #define EXTERN_PREFIX "${extern_prefix}"
4502 #define EXTERN_ASM ${extern_prefix}
4503 #define SLIBSUF "$SLIBSUF"
4504 EOF
4505
4506 test -n "$malloc_prefix" &&
4507     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4508
4509 if enabled yasm; then
4510     append config_files $TMPASM
4511     printf '' >$TMPASM
4512 fi
4513
4514 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4515
4516 print_config ARCH_   "$config_files" $ARCH_LIST
4517 print_config HAVE_   "$config_files" $HAVE_LIST
4518 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4519                                      $CONFIG_EXTRA      \
4520                                      $ALL_COMPONENTS    \
4521
4522 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4523
4524 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4525 cp_if_changed $TMPH config.h
4526 touch .config
4527
4528 enabled yasm && cp_if_changed $TMPASM config.asm
4529
4530 cat > $TMPH <<EOF
4531 /* Generated by ffconf */
4532 #ifndef AVUTIL_AVCONFIG_H
4533 #define AVUTIL_AVCONFIG_H
4534 EOF
4535
4536 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4537
4538 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4539
4540 cp_if_changed $TMPH libavutil/avconfig.h
4541
4542 test -n "$WARNINGS" && printf "\n$WARNINGS"
4543
4544 # build pkg-config files
4545
4546 pkgconfig_generate(){
4547     name=$1
4548     shortname=${name#lib}${build_suffix}
4549     comment=$2
4550     version=$3
4551     libs=$4
4552     requires=$5
4553     enabled ${name#lib} || return 0
4554     mkdir -p $name
4555     cat <<EOF > $name/$name.pc
4556 prefix=$prefix
4557 exec_prefix=\${prefix}
4558 libdir=$libdir
4559 includedir=$incdir
4560
4561 Name: $name
4562 Description: $comment
4563 Version: $version
4564 Requires: $(enabled shared || echo $requires)
4565 Requires.private: $(enabled shared && echo $requires)
4566 Conflicts:
4567 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4568 Libs.private: $(enabled shared && echo $libs)
4569 Cflags: -I\${includedir}
4570 EOF
4571     cat <<EOF > $name/$name-uninstalled.pc
4572 prefix=
4573 exec_prefix=
4574 libdir=\${pcfiledir}
4575 includedir=${source_path}
4576
4577 Name: $name
4578 Description: $comment
4579 Version: $version
4580 Requires: $requires
4581 Conflicts:
4582 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4583 Cflags: -I\${includedir}
4584 EOF
4585 }
4586
4587 lavfi_libs="libavutil = $LIBAVUTIL_VERSION"
4588 enabled movie_filter    && prepend lavfi_libs "libavformat >= $LIBAVFORMAT_VERSION, libavcodec >= $LIBAVCODEC_VERSION,"
4589 enabled resample_filter && prepend lavfi_libs "libavresample >= $LIBAVRESAMPLE_VERSION,"
4590 enabled scale_filter    && prepend lavfi_libs "libswscale >= $LIBSWSCALE_VERSION,"
4591
4592 pkgconfig_generate libavutil     "Libav utility library"          "$LIBAVUTIL_VERSION"     "$LIBM"
4593 pkgconfig_generate libavcodec    "Libav codec library"            "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4594 pkgconfig_generate libavformat   "Libav container format library" "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4595 pkgconfig_generate libavdevice   "Libav device handling library"  "$LIBAVDEVICE_VERSION"   "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4596 pkgconfig_generate libavfilter   "Libav video filtering library"  "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4597 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4598 pkgconfig_generate libswscale    "Libav image rescaling library"  "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil = $LIBAVUTIL_VERSION"