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