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     error_resilience
1111     fft
1112     gpl
1113     gray
1114     hardcoded_tables
1115     lsp
1116     lzo
1117     mdct
1118     memalign_hack
1119     network
1120     nonfree
1121     perl
1122     pic
1123     rdft
1124     runtime_cpudetect
1125     safe_bitstream_reader
1126     shared
1127     small
1128     sram
1129     static
1130     swscale_alpha
1131     texi2html
1132     thumb
1133     version3
1134     xmm_clobber_test
1135 "
1136
1137 THREADS_LIST='
1138     pthreads
1139     w32threads
1140 '
1141
1142 ATOMICS_LIST='
1143     atomics_gcc
1144     atomics_suncc
1145     atomics_win32
1146 '
1147
1148 ARCH_LIST='
1149     aarch64
1150     alpha
1151     arm
1152     avr32
1153     avr32_ap
1154     avr32_uc
1155     bfin
1156     ia64
1157     m68k
1158     mips
1159     mips64
1160     parisc
1161     ppc
1162     ppc64
1163     s390
1164     sh4
1165     sparc
1166     sparc64
1167     tilegx
1168     tilepro
1169     tomi
1170     x86
1171     x86_32
1172     x86_64
1173 '
1174
1175 ARCH_EXT_LIST_ARM='
1176     armv5te
1177     armv6
1178     armv6t2
1179     neon
1180     vfp
1181     vfpv3
1182 '
1183
1184 ARCH_EXT_LIST_X86='
1185     amd3dnow
1186     amd3dnowext
1187     avx
1188     avx2
1189     fma4
1190     i686
1191     mmx
1192     mmxext
1193     sse
1194     sse2
1195     sse3
1196     sse4
1197     sse42
1198     ssse3
1199 '
1200
1201 ARCH_EXT_LIST="
1202     $ARCH_EXT_LIST_ARM
1203     $ARCH_EXT_LIST_X86
1204     altivec
1205     ppc4xx
1206     vis
1207 "
1208
1209 HAVE_LIST_CMDLINE='
1210     inline_asm
1211     symver
1212     yasm
1213 '
1214
1215 HAVE_LIST_PUB='
1216     bigendian
1217     fast_unaligned
1218 '
1219
1220 MATH_FUNCS="
1221     atanf
1222     atan2f
1223     cbrtf
1224     cosf
1225     exp2
1226     exp2f
1227     expf
1228     isinf
1229     isnan
1230     ldexpf
1231     llrint
1232     llrintf
1233     log2
1234     log2f
1235     log10f
1236     lrint
1237     lrintf
1238     powf
1239     rint
1240     round
1241     roundf
1242     sinf
1243     trunc
1244     truncf
1245 "
1246
1247 HAVE_LIST="
1248     $ARCH_EXT_LIST
1249     $(add_suffix _external $ARCH_EXT_LIST)
1250     $(add_suffix _inline   $ARCH_EXT_LIST)
1251     $HAVE_LIST_CMDLINE
1252     $HAVE_LIST_PUB
1253     $THREADS_LIST
1254     $ATOMICS_LIST
1255     $MATH_FUNCS
1256     aligned_malloc
1257     aligned_stack
1258     alsa_asoundlib_h
1259     altivec_h
1260     arpa_inet_h
1261     asm_mod_q
1262     asm_mod_y
1263     atomic_cas_ptr
1264     atomics_native
1265     attribute_may_alias
1266     attribute_packed
1267     cdio_paranoia_h
1268     cdio_paranoia_paranoia_h
1269     closesocket
1270     CommandLineToArgvW
1271     cpunop
1272     CryptGenRandom
1273     dcbzl
1274     dev_bktr_ioctl_bt848_h
1275     dev_bktr_ioctl_meteor_h
1276     dev_ic_bt8xx_h
1277     dev_video_bktr_ioctl_bt848_h
1278     dev_video_meteor_ioctl_meteor_h
1279     direct_h
1280     dlfcn_h
1281     dlopen
1282     dos_paths
1283     dxva_h
1284     ebp_available
1285     ebx_available
1286     fast_64bit
1287     fast_clz
1288     fast_cmov
1289     fcntl
1290     fork
1291     getaddrinfo
1292     gethrtime
1293     getopt
1294     GetProcessAffinityMask
1295     GetProcessMemoryInfo
1296     GetProcessTimes
1297     GetSystemTimeAsFileTime
1298     getrusage
1299     getservbyport
1300     gettimeofday
1301     gnu_as
1302     gsm_h
1303     ibm_asm
1304     inet_aton
1305     io_h
1306     inline_asm_labels
1307     isatty
1308     jack_port_get_latency_range
1309     ldbrx
1310     libdc1394_1
1311     libdc1394_2
1312     local_aligned_16
1313     local_aligned_8
1314     localtime_r
1315     loongson
1316     machine_ioctl_bt848_h
1317     machine_ioctl_meteor_h
1318     machine_rw_barrier
1319     malloc_h
1320     MapViewOfFile
1321     memalign
1322     MemoryBarrier
1323     mkstemp
1324     mm_empty
1325     mmap
1326     mprotect
1327     msvcrt
1328     nanosleep
1329     poll_h
1330     posix_memalign
1331     pragma_deprecated
1332     rdtsc
1333     sched_getaffinity
1334     sdl
1335     SetConsoleTextAttribute
1336     setmode
1337     setrlimit
1338     Sleep
1339     sndio_h
1340     socklen_t
1341     soundcard_h
1342     strerror_r
1343     strptime
1344     strtok_r
1345     struct_addrinfo
1346     struct_group_source_req
1347     struct_ip_mreq_source
1348     struct_ipv6_mreq
1349     struct_pollfd
1350     struct_rusage_ru_maxrss
1351     struct_sockaddr_in6
1352     struct_sockaddr_sa_len
1353     struct_sockaddr_storage
1354     struct_v4l2_frmivalenum_discrete
1355     symver_asm_label
1356     symver_gnu_asm
1357     sync_val_compare_and_swap
1358     sysconf
1359     sysctl
1360     sys_mman_h
1361     sys_param_h
1362     sys_resource_h
1363     sys_select_h
1364     sys_soundcard_h
1365     sys_time_h
1366     sys_un_h
1367     sys_videoio_h
1368     threads
1369     unistd_h
1370     usleep
1371     vdpau_x11
1372     vfp_args
1373     VirtualAlloc
1374     windows_h
1375     winsock2_h
1376     xform_asm
1377     xlib
1378     xmm_clobbers
1379 "
1380
1381 # options emitted with CONFIG_ prefix but not available on the command line
1382 CONFIG_EXTRA="
1383     aandcttables
1384     ac3dsp
1385     audio_frame_queue
1386     dsputil
1387     gcrypt
1388     golomb
1389     gplv3
1390     h263dsp
1391     h264chroma
1392     h264dsp
1393     h264pred
1394     h264qpel
1395     hpeldsp
1396     huffman
1397     lgplv3
1398     lpc
1399     mpegaudio
1400     mpegaudiodsp
1401     mpegvideo
1402     mpegvideoenc
1403     nettle
1404     rangecoder
1405     riffdec
1406     riffenc
1407     rtpdec
1408     rtpenc_chain
1409     sinewin
1410     videodsp
1411     vp3dsp
1412 "
1413
1414 CMDLINE_SELECT="
1415     $ARCH_EXT_LIST
1416     $CONFIG_LIST
1417     $HAVE_LIST_CMDLINE
1418     $THREADS_LIST
1419     asm
1420     cross_compile
1421     debug
1422     extra_warnings
1423     logging
1424     lto
1425     optimizations
1426 "
1427
1428 PATHS_LIST='
1429     bindir
1430     datadir
1431     docdir
1432     incdir
1433     libdir
1434     mandir
1435     prefix
1436     shlibdir
1437 '
1438
1439 CMDLINE_SET="
1440     $PATHS_LIST
1441     ar
1442     arch
1443     as
1444     build_suffix
1445     cc
1446     cpu
1447     cross_prefix
1448     dep_cc
1449     extra_version
1450     host_cc
1451     host_cflags
1452     host_ld
1453     host_ldflags
1454     host_libs
1455     host_os
1456     ld
1457     logfile
1458     malloc_prefix
1459     nm
1460     optflags
1461     pkg_config
1462     random_seed
1463     samples
1464     sysinclude
1465     sysroot
1466     target_exec
1467     target_os
1468     target_path
1469     target_samples
1470     toolchain
1471 "
1472
1473 CMDLINE_APPEND="
1474     extra_cflags
1475     host_cppflags
1476 "
1477
1478 # code dependency declarations
1479
1480 # architecture extensions
1481
1482 armv5te_deps="arm"
1483 armv6_deps="arm"
1484 armv6t2_deps="arm"
1485 neon_deps="arm"
1486 vfp_deps="arm"
1487 vfpv3_deps="vfp"
1488
1489 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1490
1491 altivec_deps="ppc"
1492 ppc4xx_deps="ppc"
1493
1494 vis_deps="sparc"
1495
1496 cpunop_deps="i686"
1497 x86_64_select="i686"
1498 x86_64_suggest="fast_cmov"
1499
1500 amd3dnow_deps="mmx"
1501 amd3dnowext_deps="amd3dnow"
1502 mmx_deps="x86"
1503 mmxext_deps="mmx"
1504 sse_deps="mmxext"
1505 sse2_deps="sse"
1506 sse3_deps="sse2"
1507 ssse3_deps="sse3"
1508 sse4_deps="ssse3"
1509 sse42_deps="sse4"
1510 avx_deps="sse42"
1511 fma4_deps="avx"
1512 avx2_deps="avx"
1513
1514 mmx_external_deps="yasm"
1515 mmx_inline_deps="inline_asm"
1516 mmx_suggest="mmx_external mmx_inline"
1517
1518 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1519     eval dep=\$${ext}_deps
1520     eval ${ext}_external_deps='"${dep}_external"'
1521     eval ${ext}_inline_deps='"${dep}_inline"'
1522     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1523 done
1524
1525 aligned_stack_if_any="ppc x86"
1526 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1527 fast_clz_if_any="alpha avr32 mips ppc x86"
1528 fast_unaligned_if_any="ppc x86"
1529
1530 inline_asm_deps="!tms470"
1531 need_memalign="altivec neon sse"
1532
1533 symver_if_any="symver_asm_label symver_gnu_asm"
1534
1535 log2_deps="!msvcrt"
1536
1537 # subsystems
1538 dct_select="rdft"
1539 error_resilience_select="dsputil"
1540 lpc_select="dsputil"
1541 mdct_select="fft"
1542 rdft_select="fft"
1543 mpegaudio_select="mpegaudiodsp"
1544 mpegaudiodsp_select="dct"
1545 mpegvideo_select="dsputil hpeldsp videodsp"
1546 mpegvideoenc_select="mpegvideo"
1547
1548 # decoders / encoders
1549 aac_decoder_select="mdct sinewin"
1550 aac_encoder_select="audio_frame_queue mdct sinewin"
1551 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1552 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1553 ac3_encoder_select="mdct ac3dsp dsputil"
1554 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1555 aic_decoder_select="dsputil golomb"
1556 alac_encoder_select="lpc"
1557 als_decoder_select="dsputil"
1558 amrnb_decoder_select="lsp"
1559 amrwb_decoder_select="lsp"
1560 amv_decoder_select="dsputil hpeldsp"
1561 ape_decoder_select="dsputil"
1562 asv1_decoder_select="dsputil"
1563 asv1_encoder_select="dsputil"
1564 asv2_decoder_select="dsputil"
1565 asv2_encoder_select="dsputil"
1566 atrac1_decoder_select="mdct sinewin"
1567 atrac3_decoder_select="mdct"
1568 bink_decoder_select="dsputil hpeldsp"
1569 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1570 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1571 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1572 cllc_decoder_select="dsputil"
1573 comfortnoise_encoder_select="lpc"
1574 cook_decoder_select="dsputil mdct sinewin"
1575 cscd_decoder_select="lzo"
1576 cscd_decoder_suggest="zlib"
1577 dca_decoder_select="mdct"
1578 dnxhd_decoder_select="dsputil"
1579 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1580 dvvideo_decoder_select="dsputil"
1581 dvvideo_encoder_select="dsputil"
1582 dxa_decoder_deps="zlib"
1583 eac3_decoder_select="ac3_decoder"
1584 eac3_encoder_select="ac3_encoder"
1585 eamad_decoder_select="aandcttables dsputil mpegvideo"
1586 eatgq_decoder_select="aandcttables dsputil"
1587 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1588 ffv1_decoder_select="dsputil golomb rangecoder"
1589 ffv1_encoder_select="dsputil rangecoder"
1590 ffvhuff_decoder_select="dsputil"
1591 ffvhuff_encoder_select="dsputil huffman"
1592 flac_decoder_select="golomb"
1593 flac_encoder_select="dsputil golomb lpc"
1594 flashsv_decoder_deps="zlib"
1595 flashsv_encoder_deps="zlib"
1596 flashsv2_decoder_deps="zlib"
1597 flv_decoder_select="h263_decoder"
1598 flv_encoder_select="h263_encoder"
1599 fourxm_decoder_select="dsputil"
1600 fraps_decoder_select="dsputil huffman"
1601 g2m_decoder_deps="zlib"
1602 g2m_decoder_select="dsputil"
1603 h261_decoder_select="error_resilience mpegvideo"
1604 h261_encoder_select="aandcttables mpegvideoenc"
1605 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1606 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1607 h263i_decoder_select="h263_decoder"
1608 h263p_encoder_select="h263_encoder"
1609 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1610 h264_decoder_suggest="error_resilience"
1611 hevc_decoder_select="dsputil golomb videodsp"
1612 huffyuv_decoder_select="dsputil"
1613 huffyuv_encoder_select="dsputil huffman"
1614 iac_decoder_select="dsputil fft mdct sinewin"
1615 imc_decoder_select="dsputil fft mdct sinewin"
1616 indeo3_decoder_select="hpeldsp"
1617 interplay_video_decoder_select="hpeldsp"
1618 jpegls_decoder_select="dsputil golomb hpeldsp"
1619 jpegls_encoder_select="golomb"
1620 jv_decoder_select="dsputil"
1621 lagarith_decoder_select="dsputil"
1622 ljpeg_encoder_select="aandcttables mpegvideoenc"
1623 loco_decoder_select="golomb"
1624 mdec_decoder_select="dsputil error_resilience mpegvideo"
1625 metasound_decoder_select="lsp mdct sinewin"
1626 mimic_decoder_select="dsputil hpeldsp"
1627 mjpeg_decoder_select="dsputil hpeldsp"
1628 mjpegb_decoder_select="dsputil hpeldsp"
1629 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1630 mlp_decoder_select="dsputil mlp_parser"
1631 motionpixels_decoder_select="dsputil"
1632 mp1_decoder_select="mpegaudio"
1633 mp1float_decoder_select="mpegaudio"
1634 mp2_decoder_select="mpegaudio"
1635 mp2float_decoder_select="mpegaudio"
1636 mp3_decoder_select="mpegaudio"
1637 mp3adu_decoder_select="mpegaudio"
1638 mp3adufloat_decoder_select="mpegaudio"
1639 mp3float_decoder_select="mpegaudio"
1640 mp3on4_decoder_select="mpegaudio"
1641 mp3on4float_decoder_select="mpegaudio"
1642 mpc7_decoder_select="dsputil mpegaudiodsp"
1643 mpc8_decoder_select="dsputil mpegaudiodsp"
1644 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1645 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1646 mpeg1video_decoder_select="error_resilience mpegvideo"
1647 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1648 mpeg2video_decoder_select="error_resilience mpegvideo"
1649 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1650 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1651 mpeg4_encoder_select="h263_encoder"
1652 msmpeg4v1_decoder_select="h263_decoder"
1653 msmpeg4v2_decoder_select="h263_decoder"
1654 msmpeg4v2_encoder_select="h263_encoder"
1655 msmpeg4v3_decoder_select="h263_decoder"
1656 msmpeg4v3_encoder_select="h263_encoder"
1657 mss2_decoder_select="error_resilience vc1_decoder"
1658 mxpeg_decoder_select="dsputil hpeldsp"
1659 nellymoser_decoder_select="mdct sinewin"
1660 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1661 nuv_decoder_select="dsputil lzo"
1662 png_decoder_deps="zlib"
1663 png_decoder_select="dsputil"
1664 png_encoder_deps="zlib"
1665 png_encoder_select="dsputil"
1666 prores_decoder_select="dsputil"
1667 prores_encoder_select="dsputil"
1668 qcelp_decoder_select="lsp"
1669 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1670 ra_144_encoder_select="audio_frame_queue lpc"
1671 ralf_decoder_select="golomb"
1672 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1673 rv10_encoder_select="h263_encoder"
1674 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1675 rv20_encoder_select="h263_encoder"
1676 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1677 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1678 shorten_decoder_select="golomb"
1679 sipr_decoder_select="lsp"
1680 sp5x_decoder_select="dsputil hpeldsp"
1681 svq1_decoder_select="hpeldsp"
1682 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1683 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1684 svq3_decoder_suggest="error_resilience zlib"
1685 tak_decoder_select="dsputil"
1686 theora_decoder_select="vp3_decoder"
1687 tiff_decoder_suggest="zlib"
1688 tiff_encoder_suggest="zlib"
1689 thp_decoder_select="dsputil hpeldsp"
1690 truehd_decoder_select="mlp_decoder"
1691 truemotion2_decoder_select="dsputil"
1692 truespeech_decoder_select="dsputil"
1693 tscc_decoder_deps="zlib"
1694 twinvq_decoder_select="mdct lsp sinewin"
1695 utvideo_decoder_select="dsputil"
1696 utvideo_encoder_select="dsputil huffman"
1697 vble_decoder_select="dsputil"
1698 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1699 vc1image_decoder_select="vc1_decoder"
1700 vorbis_decoder_select="mdct"
1701 vorbis_encoder_select="mdct"
1702 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1703 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1704 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1705 vp6a_decoder_select="vp6_decoder"
1706 vp6f_decoder_select="vp6_decoder"
1707 vp8_decoder_select="h264pred videodsp"
1708 vp9_decoder_select="videodsp"
1709 webp_decoder_select="vp8_decoder"
1710 wmapro_decoder_select="mdct sinewin"
1711 wmav1_decoder_select="mdct sinewin"
1712 wmav1_encoder_select="mdct sinewin"
1713 wmav2_decoder_select="mdct sinewin"
1714 wmav2_encoder_select="mdct sinewin"
1715 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1716 wmv1_decoder_select="h263_decoder"
1717 wmv1_encoder_select="h263_encoder"
1718 wmv2_decoder_select="h263_decoder videodsp"
1719 wmv2_encoder_select="h263_encoder"
1720 wmv3_decoder_select="vc1_decoder"
1721 wmv3image_decoder_select="wmv3_decoder"
1722 zerocodec_decoder_deps="zlib"
1723 zlib_decoder_deps="zlib"
1724 zlib_encoder_deps="zlib"
1725 zmbv_decoder_deps="zlib"
1726 zmbv_encoder_deps="zlib"
1727
1728 # hardware accelerators
1729 dxva2_deps="dxva2api_h"
1730 vaapi_deps="va_va_h"
1731 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1732 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1733 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1734
1735 h263_vaapi_hwaccel_deps="vaapi"
1736 h263_vaapi_hwaccel_select="h263_decoder"
1737 h263_vdpau_hwaccel_deps="vdpau"
1738 h263_vdpau_hwaccel_select="h263_decoder"
1739 h264_dxva2_hwaccel_deps="dxva2"
1740 h264_dxva2_hwaccel_select="h264_decoder"
1741 h264_vaapi_hwaccel_deps="vaapi"
1742 h264_vaapi_hwaccel_select="h264_decoder"
1743 h264_vda_hwaccel_deps="vda"
1744 h264_vda_hwaccel_select="h264_decoder"
1745 h264_vdpau_hwaccel_deps="vdpau"
1746 h264_vdpau_hwaccel_select="h264_decoder"
1747 mpeg1_vdpau_hwaccel_deps="vdpau"
1748 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1749 mpeg2_dxva2_hwaccel_deps="dxva2"
1750 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1751 mpeg2_vaapi_hwaccel_deps="vaapi"
1752 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1753 mpeg2_vdpau_hwaccel_deps="vdpau"
1754 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1755 mpeg4_vaapi_hwaccel_deps="vaapi"
1756 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1757 mpeg4_vdpau_hwaccel_deps="vdpau"
1758 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1759 vc1_dxva2_hwaccel_deps="dxva2"
1760 vc1_dxva2_hwaccel_select="vc1_decoder"
1761 vc1_vaapi_hwaccel_deps="vaapi"
1762 vc1_vaapi_hwaccel_select="vc1_decoder"
1763 vc1_vdpau_hwaccel_deps="vdpau"
1764 vc1_vdpau_hwaccel_select="vc1_decoder"
1765 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1766 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1767 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1768
1769 # parsers
1770 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1771 mpeg4video_parser_select="error_resilience mpegvideo"
1772 mpegvideo_parser_select="error_resilience mpegvideo"
1773 vc1_parser_select="mpegvideo"
1774
1775 # external libraries
1776 libfaac_encoder_deps="libfaac"
1777 libfaac_encoder_select="audio_frame_queue"
1778 libfdk_aac_decoder_deps="libfdk_aac"
1779 libfdk_aac_encoder_deps="libfdk_aac"
1780 libfdk_aac_encoder_select="audio_frame_queue"
1781 libgsm_decoder_deps="libgsm"
1782 libgsm_encoder_deps="libgsm"
1783 libgsm_ms_decoder_deps="libgsm"
1784 libgsm_ms_encoder_deps="libgsm"
1785 libilbc_decoder_deps="libilbc"
1786 libilbc_encoder_deps="libilbc"
1787 libmp3lame_encoder_deps="libmp3lame"
1788 libmp3lame_encoder_select="audio_frame_queue"
1789 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1790 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1791 libopencore_amrnb_encoder_select="audio_frame_queue"
1792 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1793 libopenjpeg_decoder_deps="libopenjpeg"
1794 libopenjpeg_encoder_deps="libopenjpeg"
1795 libopus_decoder_deps="libopus"
1796 libopus_encoder_deps="libopus"
1797 libopus_encoder_select="audio_frame_queue"
1798 libschroedinger_decoder_deps="libschroedinger"
1799 libschroedinger_encoder_deps="libschroedinger"
1800 libspeex_decoder_deps="libspeex"
1801 libspeex_encoder_deps="libspeex"
1802 libspeex_encoder_select="audio_frame_queue"
1803 libtheora_encoder_deps="libtheora"
1804 libvo_aacenc_encoder_deps="libvo_aacenc"
1805 libvo_aacenc_encoder_select="audio_frame_queue"
1806 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1807 libvorbis_encoder_deps="libvorbis"
1808 libvorbis_encoder_select="audio_frame_queue"
1809 libvpx_vp8_decoder_deps="libvpx"
1810 libvpx_vp8_encoder_deps="libvpx"
1811 libvpx_vp9_decoder_deps="libvpx"
1812 libvpx_vp9_encoder_deps="libvpx"
1813 libwavpack_encoder_deps="libwavpack"
1814 libx264_encoder_deps="libx264"
1815 libxavs_encoder_deps="libxavs"
1816 libxvid_encoder_deps="libxvid"
1817
1818 # demuxers / muxers
1819 ac3_demuxer_select="ac3_parser"
1820 asf_demuxer_select="riffdec"
1821 asf_muxer_select="riffenc"
1822 asf_stream_muxer_select="asf_muxer"
1823 avi_demuxer_select="riffdec"
1824 avi_muxer_select="riffenc"
1825 avisynth_demuxer_deps="avisynth"
1826 avisynth_demuxer_select="riffdec"
1827 caf_demuxer_select="riffdec"
1828 dirac_demuxer_select="dirac_parser"
1829 dxa_demuxer_select="riffdec"
1830 eac3_demuxer_select="ac3_parser"
1831 f4v_muxer_select="mov_muxer"
1832 flac_demuxer_select="flac_parser"
1833 hds_muxer_select="flv_muxer"
1834 hls_muxer_select="mpegts_muxer"
1835 ipod_muxer_select="mov_muxer"
1836 ismv_muxer_select="mov_muxer"
1837 matroska_audio_muxer_select="matroska_muxer"
1838 matroska_demuxer_select="riffdec"
1839 matroska_demuxer_suggest="bzlib lzo zlib"
1840 matroska_muxer_select="riffenc"
1841 mmf_muxer_select="riffenc"
1842 mov_demuxer_select="riffdec"
1843 mov_demuxer_suggest="zlib"
1844 mov_muxer_select="riffenc rtpenc_chain"
1845 mp3_demuxer_select="mpegaudio_parser"
1846 mp4_muxer_select="mov_muxer"
1847 mpegts_muxer_select="adts_muxer latm_muxer"
1848 mpegtsraw_demuxer_select="mpegts_demuxer"
1849 mxf_d10_muxer_select="mxf_muxer"
1850 nut_muxer_select="riffenc"
1851 nuv_demuxer_select="riffdec"
1852 ogg_demuxer_select="golomb"
1853 psp_muxer_select="mov_muxer"
1854 rtp_demuxer_select="sdp_demuxer"
1855 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1856 rtsp_demuxer_select="http_protocol rtpdec"
1857 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1858 sap_demuxer_select="sdp_demuxer"
1859 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1860 sdp_demuxer_select="rtpdec"
1861 smoothstreaming_muxer_select="ismv_muxer"
1862 spdif_muxer_select="aac_parser"
1863 tak_demuxer_select="tak_parser"
1864 tg2_muxer_select="mov_muxer"
1865 tgp_muxer_select="mov_muxer"
1866 w64_demuxer_select="wav_demuxer"
1867 wav_demuxer_select="riffdec"
1868 wav_muxer_select="riffenc"
1869 webm_muxer_select="riffenc"
1870 wtv_demuxer_select="riffdec"
1871 xmv_demuxer_select="riffdec"
1872 xwma_demuxer_select="riffdec"
1873
1874 # indevs / outdevs
1875 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1876 alsa_outdev_deps="alsa_asoundlib_h"
1877 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1878 dv1394_indev_deps="dv1394"
1879 dv1394_indev_select="dv_demuxer"
1880 fbdev_indev_deps="linux_fb_h"
1881 jack_indev_deps="jack_jack_h pthreads"
1882 libcdio_indev_deps="libcdio"
1883 libdc1394_indev_deps="libdc1394"
1884 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1885 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1886 pulse_indev_deps="libpulse"
1887 sndio_indev_deps="sndio_h"
1888 sndio_outdev_deps="sndio_h"
1889 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1890 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1891 vfwcap_indev_extralibs="-lavicap32"
1892 x11grab_indev_deps="x11grab XShmCreateImage"
1893
1894 # protocols
1895 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1896 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1897 ffrtmpcrypt_protocol_select="tcp_protocol"
1898 ffrtmphttp_protocol_deps="!librtmp_protocol"
1899 ffrtmphttp_protocol_select="http_protocol"
1900 gopher_protocol_select="network"
1901 httpproxy_protocol_select="tcp_protocol"
1902 http_protocol_select="tcp_protocol"
1903 https_protocol_select="tls_protocol"
1904 librtmp_protocol_deps="librtmp"
1905 librtmpe_protocol_deps="librtmp"
1906 librtmps_protocol_deps="librtmp"
1907 librtmpt_protocol_deps="librtmp"
1908 librtmpte_protocol_deps="librtmp"
1909 mmsh_protocol_select="http_protocol"
1910 mmst_protocol_select="network"
1911 rtmp_protocol_deps="!librtmp_protocol"
1912 rtmp_protocol_select="tcp_protocol"
1913 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1914 rtmps_protocol_deps="!librtmp_protocol"
1915 rtmps_protocol_select="tls_protocol"
1916 rtmpt_protocol_select="ffrtmphttp_protocol"
1917 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1918 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1919 rtp_protocol_select="udp_protocol"
1920 sctp_protocol_deps="struct_sctp_event_subscribe"
1921 sctp_protocol_select="network"
1922 srtp_protocol_select="rtp_protocol"
1923 tcp_protocol_select="network"
1924 tls_protocol_deps_any="openssl gnutls"
1925 tls_protocol_select="tcp_protocol"
1926 udp_protocol_select="network"
1927 unix_protocol_deps="sys_un_h"
1928 unix_protocol_select="network"
1929
1930 # filters
1931 blackframe_filter_deps="gpl"
1932 boxblur_filter_deps="gpl"
1933 cropdetect_filter_deps="gpl"
1934 delogo_filter_deps="gpl"
1935 drawtext_filter_deps="libfreetype"
1936 frei0r_filter_deps="frei0r dlopen strtok_r"
1937 frei0r_filter_extralibs='$ldl'
1938 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1939 frei0r_src_filter_extralibs='$ldl'
1940 hqdn3d_filter_deps="gpl"
1941 interlace_filter_deps="gpl"
1942 resample_filter_deps="avresample"
1943 ocv_filter_deps="libopencv"
1944 scale_filter_deps="swscale"
1945 yadif_filter_deps="gpl"
1946
1947 # libraries
1948 avcodec_deps="avutil"
1949 avdevice_deps="avutil avcodec avformat"
1950 avfilter_deps="avutil"
1951 avformat_deps="avutil avcodec"
1952 avresample_deps="avutil"
1953 swscale_deps="avutil"
1954
1955 # programs
1956 avconv_deps="avcodec avfilter avformat avresample swscale"
1957 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1958                fps_filter null_filter resample_filter scale_filter
1959                setpts_filter trim_filter"
1960 avplay_deps="avcodec avformat avresample swscale sdl"
1961 avplay_select="rdft"
1962 avprobe_deps="avcodec avformat"
1963 avserver_deps="avformat fork !shared"
1964 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
1965 avserver_extralibs='$ldl'
1966
1967 # default parameters
1968
1969 logfile="config.log"
1970
1971 # installation paths
1972 prefix_default="/usr/local"
1973 bindir_default='${prefix}/bin'
1974 datadir_default='${prefix}/share/avconv'
1975 docdir_default='${prefix}/share/doc/libav'
1976 incdir_default='${prefix}/include'
1977 libdir_default='${prefix}/lib'
1978 mandir_default='${prefix}/share/man'
1979 shlibdir_default="$libdir_default"
1980
1981 # toolchain
1982 ar_default="ar"
1983 cc_default="gcc"
1984 host_cc_default="gcc"
1985 cp_f="cp -f"
1986 ln_s="ln -s -f"
1987 nm_default="nm -g"
1988 objformat="elf"
1989 pkg_config_default=pkg-config
1990 ranlib="ranlib"
1991 strip="strip"
1992 yasmexe="yasm"
1993
1994 nogas=":"
1995
1996 # machine
1997 arch_default=$(uname -m)
1998 cpu="generic"
1999
2000 # OS
2001 target_os_default=$(tolower $(uname -s))
2002 host_os=$target_os_default
2003
2004 # configurable options
2005 enable $LIBRARY_LIST $PROGRAM_LIST
2006
2007 enable asm
2008 enable debug
2009 enable doc
2010 enable optimizations
2011 enable safe_bitstream_reader
2012 enable static
2013 enable swscale_alpha
2014
2015 # By default, enable only those hwaccels that have no external dependencies.
2016 enable dxva2 vdpau
2017
2018 # build settings
2019 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2020 LIBPREF="lib"
2021 LIBSUF=".a"
2022 FULLNAME='$(NAME)$(BUILDSUF)'
2023 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2024 SLIBPREF="lib"
2025 SLIBSUF=".so"
2026 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2027 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2028 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2029 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2030 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2031 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2032
2033 asflags_filter=echo
2034 cflags_filter=echo
2035 ldflags_filter=echo
2036
2037 AS_C='-c'
2038 AS_O='-o $@'
2039 CC_C='-c'
2040 CC_E='-E -o $@'
2041 CC_O='-o $@'
2042 LD_O='-o $@'
2043 LD_LIB='-l%'
2044 LD_PATH='-L'
2045 HOSTCC_C='-c'
2046 HOSTCC_O='-o $@'
2047 HOSTLD_O='-o $@'
2048
2049 host_cflags='-O3 -g'
2050 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2051 host_libs='-lm'
2052 host_cflags_filter=echo
2053 host_ldflags_filter=echo
2054
2055 target_path='$(CURDIR)'
2056
2057 # since the object filename is not given with the -MM flag, the compiler
2058 # is only able to print the basename, and we must add the path ourselves
2059 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2060 DEPFLAGS='-MM'
2061
2062 # find source path
2063 if test -f configure; then
2064     source_path=.
2065 else
2066     source_path=$(cd $(dirname "$0"); pwd)
2067     echo "$source_path" | grep -q '[[:blank:]]' &&
2068         die "Out of tree builds are impossible with whitespace in source path."
2069     test -e "$source_path/config.h" &&
2070         die "Out of tree builds are impossible with config.h in source dir."
2071 fi
2072
2073 for v in "$@"; do
2074     r=${v#*=}
2075     l=${v%"$r"}
2076     r=$(sh_quote "$r")
2077     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2078 done
2079
2080 find_things(){
2081     thing=$1
2082     pattern=$2
2083     file=$source_path/$3
2084     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2085 }
2086
2087 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2088 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2089 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2090 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2091 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2092 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2093 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2094 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2095 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2096 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2097 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2098
2099 ALL_COMPONENTS="
2100     $BSF_LIST
2101     $DECODER_LIST
2102     $DEMUXER_LIST
2103     $ENCODER_LIST
2104     $FILTER_LIST
2105     $HWACCEL_LIST
2106     $INDEV_LIST
2107     $MUXER_LIST
2108     $OUTDEV_LIST
2109     $PARSER_LIST
2110     $PROTOCOL_LIST
2111 "
2112
2113 for n in $COMPONENT_LIST; do
2114     v=$(toupper ${n%s})_LIST
2115     eval enable \$$v
2116     eval ${n}_if_any="\$$v"
2117 done
2118
2119 enable $ARCH_EXT_LIST
2120
2121 die_unknown(){
2122     echo "Unknown option \"$1\"."
2123     echo "See $0 --help for available options."
2124     exit 1
2125 }
2126
2127 print_3_columns() {
2128     cat | tr ' ' '\n' | sort | pr -r -3 -t
2129 }
2130
2131 show_list() {
2132     suffix=_$1
2133     shift
2134     echo $* | sed s/$suffix//g | print_3_columns
2135     exit 0
2136 }
2137
2138 rand_list(){
2139     IFS=', '
2140     set -- $*
2141     unset IFS
2142     for thing; do
2143         comp=${thing%:*}
2144         prob=${thing#$comp}
2145         prob=${prob#:}
2146         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2147         echo "prob ${prob:-0.5}"
2148         printf '%s\n' $comp
2149     done
2150 }
2151
2152 do_random(){
2153     action=$1
2154     shift
2155     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2156     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2157 }
2158
2159 for opt do
2160     optval="${opt#*=}"
2161     case "$opt" in
2162         --extra-ldflags=*)
2163             add_ldflags $optval
2164         ;;
2165         --extra-libs=*)
2166             add_extralibs $optval
2167         ;;
2168         --disable-devices)
2169             disable $INDEV_LIST $OUTDEV_LIST
2170         ;;
2171         --enable-debug=*)
2172             debuglevel="$optval"
2173         ;;
2174         --disable-programs)
2175             disable $PROGRAM_LIST
2176         ;;
2177         --disable-everything)
2178             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2179         ;;
2180         --disable-all)
2181             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2182             disable $LIBRARY_LIST $PROGRAM_LIST doc
2183         ;;
2184         --enable-random|--disable-random)
2185             action=${opt%%-random}
2186             do_random ${action#--} $COMPONENT_LIST
2187         ;;
2188         --enable-random=*|--disable-random=*)
2189             action=${opt%%-random=*}
2190             do_random ${action#--} $optval
2191         ;;
2192         --enable-*=*|--disable-*=*)
2193             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2194             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2195             eval list=\$$(toupper $thing)_LIST
2196             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2197             $action $(filter "$name" $list)
2198         ;;
2199         --enable-?*|--disable-?*)
2200             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2201             if is_in $option $COMPONENT_LIST; then
2202                 test $action = disable && action=unset
2203                 eval $action \$$(toupper ${option%s})_LIST
2204             elif is_in $option $CMDLINE_SELECT; then
2205                 $action $option
2206             else
2207                 die_unknown $opt
2208             fi
2209         ;;
2210         --list-*)
2211             NAME="${opt#--list-}"
2212             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2213             NAME=${NAME%s}
2214             eval show_list $NAME \$$(toupper $NAME)_LIST
2215         ;;
2216         --help|-h) show_help
2217         ;;
2218         *)
2219             optname="${opt%%=*}"
2220             optname="${optname#--}"
2221             optname=$(echo "$optname" | sed 's/-/_/g')
2222             if is_in $optname $CMDLINE_SET; then
2223                 eval $optname='$optval'
2224             elif is_in $optname $CMDLINE_APPEND; then
2225                 append $optname "$optval"
2226             else
2227                 die_unknown $opt
2228             fi
2229         ;;
2230     esac
2231 done
2232
2233 disabled logging && logfile=/dev/null
2234
2235 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2236 set >> $logfile
2237
2238 test -n "$cross_prefix" && enable cross_compile
2239
2240 if enabled cross_compile; then
2241     test -n "$arch" && test -n "$target_os" ||
2242         die "Must specify target arch and OS when cross-compiling"
2243 fi
2244
2245 ar_default="${cross_prefix}${ar_default}"
2246 cc_default="${cross_prefix}${cc_default}"
2247 nm_default="${cross_prefix}${nm_default}"
2248 pkg_config_default="${cross_prefix}${pkg_config_default}"
2249 ranlib="${cross_prefix}${ranlib}"
2250 strip="${cross_prefix}${strip}"
2251
2252 sysinclude_default="${sysroot}/usr/include"
2253
2254 case "$toolchain" in
2255     clang-asan)
2256         cc_default="clang"
2257         add_cflags  -fsanitize=address
2258         add_ldflags -fsanitize=address
2259     ;;
2260     clang-tsan)
2261         cc_default="clang"
2262         add_cflags  -fsanitize=thread -pie
2263         add_ldflags -fsanitize=thread -pie
2264     ;;
2265     gcc-asan)
2266         cc_default="gcc"
2267         add_cflags  -fsanitize=address
2268         add_ldflags -fsanitize=address
2269     ;;
2270     gcc-tsan)
2271         cc_default="gcc"
2272         add_cflags  -fsanitize=thread -pie -fPIC
2273         add_ldflags -fsanitize=thread -pie -fPIC
2274     ;;
2275     valgrind-massif)
2276         target_exec_default="valgrind"
2277         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2278     ;;
2279     valgrind-memcheck)
2280         target_exec_default="valgrind"
2281         target_exec_args="--track-origins=yes --leak-check=full"
2282     ;;
2283     msvc)
2284         # Check whether the current MSVC version needs the C99 converter.
2285         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2286         # support enough of C99 to build libav. Default to the new
2287         # behaviour if the regexp was unable to match anything, since this
2288         # successfully parses the version number of existing supported
2289         # versions that require the converter (MSVC 2010 and 2012).
2290         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2291         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2292             cc_default="cl"
2293         else
2294             cc_default="c99wrap cl"
2295         fi
2296         ld_default="link"
2297         nm_default="dumpbin -symbols"
2298         ar_default="lib"
2299         target_os_default="win32"
2300         # Use a relative path for TMPDIR. This makes sure all the
2301         # ffconf temp files are written with a relative path, avoiding
2302         # issues with msys/win32 path conversion for MSVC parameters
2303         # such as -Fo<file> or -out:<file>.
2304         TMPDIR=.
2305     ;;
2306     icl)
2307         cc_default="icl"
2308         ld_default="xilink"
2309         nm_default="dumpbin -symbols"
2310         ar_default="xilib"
2311         target_os_default="win32"
2312         TMPDIR=.
2313     ;;
2314     gcov)
2315         add_cflags  -fprofile-arcs -ftest-coverage
2316         add_ldflags -fprofile-arcs -ftest-coverage
2317     ;;
2318     hardened)
2319         add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2320         add_ldflags -Wl,-z,relro -Wl,-z,now
2321     ;;
2322     ?*)
2323         die "Unknown toolchain $toolchain"
2324     ;;
2325 esac
2326
2327 set_default arch cc pkg_config sysinclude target_exec target_os
2328 enabled cross_compile || host_cc_default=$cc
2329 set_default host_cc
2330
2331 if ! $pkg_config --version >/dev/null 2>&1; then
2332     warn "$pkg_config not found, library detection may fail."
2333     pkg_config=false
2334 fi
2335
2336 exesuf() {
2337     case $1 in
2338         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2339     esac
2340 }
2341
2342 EXESUF=$(exesuf $target_os)
2343 HOSTEXESUF=$(exesuf $host_os)
2344
2345 # set temporary file name
2346 : ${TMPDIR:=$TEMPDIR}
2347 : ${TMPDIR:=$TMP}
2348 : ${TMPDIR:=/tmp}
2349
2350 if ! check_cmd mktemp -u XXXXXX; then
2351     # simple replacement for missing mktemp
2352     # NOT SAFE FOR GENERAL USE
2353     mktemp(){
2354         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2355     }
2356 fi
2357
2358 tmpfile(){
2359     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2360         (set -C; exec > $tmp) 2>/dev/null ||
2361         die "Unable to create temporary file in $TMPDIR."
2362     append TMPFILES $tmp
2363     eval $1=$tmp
2364 }
2365
2366 trap 'rm -f -- $TMPFILES' EXIT
2367
2368 tmpfile TMPASM .asm
2369 tmpfile TMPC   .c
2370 tmpfile TMPE   $EXESUF
2371 tmpfile TMPH   .h
2372 tmpfile TMPO   .o
2373 tmpfile TMPS   .S
2374 tmpfile TMPSH  .sh
2375 tmpfile TMPV   .ver
2376
2377 unset -f mktemp
2378
2379 chmod +x $TMPE
2380
2381 # make sure we can execute files in $TMPDIR
2382 cat > $TMPSH 2>> $logfile <<EOF
2383 #! /bin/sh
2384 EOF
2385 chmod +x $TMPSH >> $logfile 2>&1
2386 if ! $TMPSH >> $logfile 2>&1; then
2387     cat <<EOF
2388 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2389 variable to another directory and make sure that it is not mounted noexec.
2390 EOF
2391     die "Sanity test failed."
2392 fi
2393
2394 ccc_flags(){
2395     for flag; do
2396         case $flag in
2397             -std=c99)           echo -c99                       ;;
2398             -mcpu=*)            echo -arch ${flag#*=}           ;;
2399             -mieee)             echo -ieee                      ;;
2400             -O*|-fast)          echo $flag                      ;;
2401             -fno-math-errno)    echo -assume nomath_errno       ;;
2402             -g)                 echo -g3                        ;;
2403             -Wall)              echo -msg_enable level2         ;;
2404             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2405             -Wl,*)              echo $flag                      ;;
2406             -f*|-W*)                                            ;;
2407             *)                  echo $flag                      ;;
2408         esac
2409    done
2410 }
2411
2412 cparser_flags(){
2413     for flag; do
2414         case $flag in
2415             -Wno-switch)             echo -Wno-switch-enum ;;
2416             -Wno-format-zero-length) ;;
2417             -Wdisabled-optimization) ;;
2418             -Wno-pointer-sign)       echo -Wno-other ;;
2419             *)                       echo $flag ;;
2420         esac
2421     done
2422 }
2423
2424 msvc_common_flags(){
2425     for flag; do
2426         case $flag in
2427             # In addition to specifying certain flags under the compiler
2428             # specific filters, they must be specified here as well or else the
2429             # generic catch all at the bottom will print the original flag.
2430             -Wall)                ;;
2431             -std=c99)             ;;
2432             # Common flags
2433             -fomit-frame-pointer) ;;
2434             -g)                   echo -Z7 ;;
2435             -fno-math-errno)      ;;
2436             -fno-common)          ;;
2437             -fno-signed-zeros)    ;;
2438             -fPIC)                ;;
2439             -mthumb)              ;;
2440             -march=*)             ;;
2441             -lz)                  echo zlib.lib ;;
2442             -lavifil32)           echo vfw32.lib ;;
2443             -lavicap32)           echo vfw32.lib user32.lib ;;
2444             -l*)                  echo ${flag#-l}.lib ;;
2445             *)                    echo $flag ;;
2446         esac
2447     done
2448 }
2449
2450 msvc_flags(){
2451     msvc_common_flags "$@"
2452     for flag; do
2453         case $flag in
2454             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2455                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2456                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2457                                        -wd4273 ;;
2458         esac
2459     done
2460 }
2461
2462 icl_flags(){
2463     msvc_common_flags "$@"
2464     for flag; do
2465         case $flag in
2466             # Despite what Intel's documentation says -Wall, which is supported
2467             # on Windows, does enable remarks so disable them here.
2468             -Wall)                echo $flag -Qdiag-disable:remark ;;
2469             -std=c99)             echo -Qstd=c99 ;;
2470         esac
2471     done
2472 }
2473
2474 pgi_flags(){
2475     for flag; do
2476         case $flag in
2477             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2478             -fomit-frame-pointer) echo -Mnoframe ;;
2479             -g)                   echo -gopt ;;
2480             *)                    echo $flag ;;
2481         esac
2482     done
2483 }
2484
2485 suncc_flags(){
2486     for flag; do
2487         case $flag in
2488             -march=*|-mcpu=*)
2489                 case "${flag#*=}" in
2490                     native)                   echo -xtarget=native       ;;
2491                     v9|niagara)               echo -xarch=sparc          ;;
2492                     ultrasparc)               echo -xarch=sparcvis       ;;
2493                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2494                     i586|pentium)             echo -xchip=pentium        ;;
2495                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2496                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2497                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2498                     pentium4*)          echo -xtarget=pentium4           ;;
2499                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2500                     *-sse3)             echo -xarch=sse3                 ;;
2501                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2502                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2503                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2504                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2505                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2506                     k8|opteron|athlon64|athlon-fx)
2507                                                echo -xarch=sse2a         ;;
2508                     athlon*)                   echo -xarch=pentium_proa  ;;
2509                 esac
2510                 ;;
2511             -std=c99)             echo -xc99              ;;
2512             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2513             -fPIC)                echo -KPIC -xcode=pic32 ;;
2514             -W*,*)                echo $flag              ;;
2515             -f*-*|-W*|-mimpure-text)                      ;;
2516             -shared)              echo -G                 ;;
2517             *)                    echo $flag              ;;
2518         esac
2519     done
2520 }
2521
2522 tms470_flags(){
2523     for flag; do
2524         case $flag in
2525             -march=*|-mcpu=*)
2526                 case "${flag#*=}" in
2527                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2528                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2529                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2530                     armv6*|arm11*)          echo -mv=6   ;;
2531                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2532                                             echo -mv=5e  ;;
2533                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2534                 esac
2535                 ;;
2536             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2537             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2538             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2539             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2540             -msoft-float)   echo --float_support=vfplib       ;;
2541             -O[0-3]|-mf=*)  echo $flag                        ;;
2542             -g)             echo -g -mn                       ;;
2543             -pds=*)         echo $flag                        ;;
2544             -D*|-I*)        echo $flag                        ;;
2545             --gcc|--abi=*)  echo $flag                        ;;
2546             -me)            echo $flag                        ;;
2547         esac
2548     done
2549 }
2550
2551 probe_cc(){
2552     pfx=$1
2553     _cc=$2
2554
2555     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2556     unset _ld_o _ldflags _ld_lib _ld_path
2557     unset _depflags _DEPCMD _DEPFLAGS
2558     _flags_filter=echo
2559
2560     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2561         _type=llvm_gcc
2562         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2563         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2564         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2565         _cflags_speed='-O3'
2566         _cflags_size='-Os'
2567     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2568         _type=gcc
2569         gcc_version=$($_cc --version | head -n1)
2570         gcc_basever=$($_cc -dumpversion)
2571         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2572         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2573         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2574         if ! $_cc -dumpversion | grep -q '^2\.'; then
2575             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2576         fi
2577         _cflags_speed='-O3'
2578         _cflags_size='-Os'
2579     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2580         _type=icc
2581         _ident=$($_cc --version | head -n1)
2582         _depflags='-MMD'
2583         _cflags_speed='-O3'
2584         _cflags_size='-Os'
2585         _cflags_noopt='-O1'
2586     elif $_cc -v 2>&1 | grep -q xlc; then
2587         _type=xlc
2588         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2589         _cflags_speed='-O5'
2590         _cflags_size='-O5 -qcompact'
2591     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2592         _type=ccc
2593         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2594         _DEPFLAGS='-M'
2595         _cflags_speed='-fast'
2596         _cflags_size='-O1'
2597         _flags_filter=ccc_flags
2598     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2599         test -d "$sysroot" || die "No valid sysroot specified."
2600         _type=armcc
2601         _ident=$($_cc --vsn | head -n1)
2602         armcc_conf="$PWD/armcc.conf"
2603         $_cc --arm_linux_configure                 \
2604              --arm_linux_config_file="$armcc_conf" \
2605              --configure_sysroot="$sysroot"        \
2606              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2607              die "Error creating armcc configuration file."
2608         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2609         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2610         as_default="${cross_prefix}gcc"
2611         _depflags='-MMD'
2612         _cflags_speed='-O3'
2613         _cflags_size='-Os'
2614     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2615         _type=tms470
2616         _ident=$($_cc -version | head -n1 | tr -s ' ')
2617         _flags='--gcc --abi=eabi -me'
2618         _cc_e='-ppl -fe=$@'
2619         _cc_o='-fe=$@'
2620         _depflags='-ppa -ppd=$(@:.o=.d)'
2621         _cflags_speed='-O3 -mf=5'
2622         _cflags_size='-O3 -mf=2'
2623         _flags_filter=tms470_flags
2624     elif $_cc -v 2>&1 | grep -q clang; then
2625         _type=clang
2626         _ident=$($_cc --version | head -n1)
2627         _depflags='-MMD'
2628         _cflags_speed='-O3'
2629         _cflags_size='-Os'
2630     elif $_cc -V 2>&1 | grep -q Sun; then
2631         _type=suncc
2632         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2633         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2634         _DEPFLAGS='-xM1 -xc99'
2635         _ldflags='-std=c99'
2636         _cflags_speed='-O5'
2637         _cflags_size='-O5 -xspace'
2638         _flags_filter=suncc_flags
2639     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2640         _type=pathscale
2641         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2642         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2643         _cflags_speed='-O2'
2644         _cflags_size='-Os'
2645         _flags_filter='filter_out -Wdisabled-optimization'
2646     elif $_cc -v 2>&1 | grep -q Open64; then
2647         _type=open64
2648         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2649         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2650         _cflags_speed='-O2'
2651         _cflags_size='-Os'
2652         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2653     elif $_cc -V 2>&1 | grep -q Portland; then
2654         _type=pgi
2655         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2656         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2657         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2658         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2659         _cflags_noopt="-O1"
2660         _flags_filter=pgi_flags
2661     elif $_cc 2>&1 | grep -q Microsoft; then
2662         _type=msvc
2663         _ident=$($cc 2>&1 | head -n1)
2664         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2665         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2666         _cflags_speed="-O2"
2667         _cflags_size="-O1"
2668         if $_cc 2>&1 | grep -q Linker; then
2669             _ld_o='-out:$@'
2670         else
2671             _ld_o='-Fe$@'
2672         fi
2673         _cc_o='-Fo$@'
2674         _cc_e='-P -Fi$@'
2675         _flags_filter=msvc_flags
2676         _ld_lib='lib%.a'
2677         _ld_path='-libpath:'
2678         _flags='-nologo'
2679         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2680         if [ $pfx = hostcc ]; then
2681             append _cflags -Dsnprintf=_snprintf
2682         fi
2683     elif $_cc 2>&1 | grep -q Intel; then
2684         _type=icl
2685         _ident=$($cc 2>&1 | head -n1)
2686         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2687         # Not only is O3 broken on 13.x+ but it is slower on all previous
2688         # versions (tested) as well.
2689         _cflags_speed="-O2"
2690         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2691         if $_cc 2>&1 | grep -q Linker; then
2692             _ld_o='-out:$@'
2693         else
2694             _ld_o='-Fe$@'
2695         fi
2696         _cc_o='-Fo$@'
2697         _cc_e='-P'
2698         _flags_filter=icl_flags
2699         _ld_lib='lib%.a'
2700         _ld_path='-libpath:'
2701         # -Qdiag-error to make icl error when seeing certain unknown arguments
2702         _flags='-nologo -Qdiag-error:4044,10157'
2703         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2704         # with MSVC which enables it by default.
2705         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2706         if [ $pfx = hostcc ]; then
2707             append _cflags -Dsnprintf=_snprintf
2708         fi
2709     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2710         _type=cparser
2711         _ident=$($_cc --version | head -n1)
2712         _depflags='-MMD'
2713         _cflags_speed='-O4'
2714         _cflags_size='-O2'
2715         _flags_filter=cparser_flags
2716     fi
2717
2718     eval ${pfx}_type=\$_type
2719     eval ${pfx}_ident=\$_ident
2720 }
2721
2722 set_ccvars(){
2723     eval ${1}_C=\${_cc_c-\${${1}_C}}
2724     eval ${1}_E=\${_cc_e-\${${1}_E}}
2725     eval ${1}_O=\${_cc_o-\${${1}_O}}
2726
2727     if [ -n "$_depflags" ]; then
2728         eval ${1}_DEPFLAGS=\$_depflags
2729     else
2730         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2731         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2732         eval DEP${1}FLAGS=\$_flags
2733     fi
2734 }
2735
2736 probe_cc cc "$cc"
2737 cflags_filter=$_flags_filter
2738 cflags_speed=$_cflags_speed
2739 cflags_size=$_cflags_size
2740 cflags_noopt=$_cflags_noopt
2741 add_cflags $_flags $_cflags
2742 cc_ldflags=$_ldflags
2743 set_ccvars CC
2744
2745 probe_cc hostcc "$host_cc"
2746 host_cflags_filter=$_flags_filter
2747 add_host_cflags  $_flags $_cflags
2748 set_ccvars HOSTCC
2749
2750 test -n "$cc_type" && enable $cc_type ||
2751     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2752
2753 : ${as_default:=$cc}
2754 : ${dep_cc_default:=$cc}
2755 : ${ld_default:=$cc}
2756 : ${host_ld_default:=$host_cc}
2757 set_default ar as dep_cc ld host_ld
2758
2759 probe_cc as "$as"
2760 asflags_filter=$_flags_filter
2761 add_asflags $_flags $_cflags
2762 set_ccvars AS
2763
2764 probe_cc ld "$ld"
2765 ldflags_filter=$_flags_filter
2766 add_ldflags $_flags $_ldflags
2767 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2768 LD_O=${_ld_o-$LD_O}
2769 LD_LIB=${_ld_lib-$LD_LIB}
2770 LD_PATH=${_ld_path-$LD_PATH}
2771
2772 probe_cc hostld "$host_ld"
2773 host_ldflags_filter=$_flags_filter
2774 add_host_ldflags $_flags $_ldflags
2775 HOSTLD_O=${_ld_o-$HOSTLD_O}
2776
2777 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2778     probe_cc depcc "$dep_cc"
2779     CCDEP=${_DEPCMD:-$DEPCMD}
2780     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2781     DEPCCFLAGS=$_flags
2782 fi
2783
2784 if $ar 2>&1 | grep -q Microsoft; then
2785     arflags="-nologo"
2786     ar_o='-out:$@'
2787 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2788     arflags="rq"
2789     ar_o='$@'
2790 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2791     arflags='-Xany -r -c'
2792     ar_o='$@'
2793 else
2794     arflags="rc"
2795     ar_o='$@'
2796 fi
2797
2798 add_cflags $extra_cflags
2799 add_asflags $extra_cflags
2800
2801 if test -n "$sysroot"; then
2802     case "$cc_type" in
2803         gcc|llvm_gcc|clang)
2804             add_cppflags --sysroot="$sysroot"
2805             add_ldflags --sysroot="$sysroot"
2806         ;;
2807         tms470)
2808             add_cppflags -I"$sysinclude"
2809             add_ldflags  --sysroot="$sysroot"
2810         ;;
2811     esac
2812 fi
2813
2814 if test "$cpu" = host; then
2815     enabled cross_compile &&
2816         die "--cpu=host makes no sense when cross-compiling."
2817
2818     case "$cc_type" in
2819         gcc|llvm_gcc)
2820             check_native(){
2821                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2822                 sed -n "/cc1.*$1=/{
2823                             s/.*$1=\\([^ ]*\\).*/\\1/
2824                             p
2825                             q
2826                         }" $TMPE
2827             }
2828             cpu=$(check_native -march || check_native -mcpu)
2829         ;;
2830     esac
2831
2832     test "${cpu:-host}" = host &&
2833         die "--cpu=host not supported with compiler $cc"
2834 fi
2835
2836 # Deal with common $arch aliases
2837 case "$arch" in
2838     aarch64|arm64)
2839         arch="aarch64"
2840     ;;
2841     arm*)
2842         arch="arm"
2843     ;;
2844     mips*|IP*)
2845         arch="mips"
2846     ;;
2847     parisc*|hppa*)
2848         arch="parisc"
2849     ;;
2850     "Power Macintosh"|ppc*|powerpc*)
2851         arch="ppc"
2852     ;;
2853     s390|s390x)
2854         arch="s390"
2855     ;;
2856     sh4|sh)
2857         arch="sh4"
2858     ;;
2859     sun4u|sparc*)
2860         arch="sparc"
2861     ;;
2862     tilegx|tile-gx)
2863         arch="tilegx"
2864     ;;
2865     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2866         arch="x86"
2867     ;;
2868 esac
2869
2870 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2871 enable $arch
2872
2873 # Add processor-specific flags
2874 if enabled aarch64; then
2875
2876     case $cpu in
2877         armv*)
2878             cpuflags="-march=$cpu"
2879         ;;
2880         *)
2881             cpuflags="-mcpu=$cpu"
2882         ;;
2883     esac
2884
2885 elif enabled alpha; then
2886
2887     cpuflags="-mcpu=$cpu"
2888
2889 elif enabled arm; then
2890
2891     check_arm_arch() {
2892         check_cpp_condition stddef.h \
2893             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2894             $cpuflags
2895     }
2896
2897     probe_arm_arch() {
2898         if   check_arm_arch 4;        then echo armv4;
2899         elif check_arm_arch 4T;       then echo armv4t;
2900         elif check_arm_arch 5;        then echo armv5;
2901         elif check_arm_arch 5E;       then echo armv5e;
2902         elif check_arm_arch 5T;       then echo armv5t;
2903         elif check_arm_arch 5TE;      then echo armv5te;
2904         elif check_arm_arch 5TEJ;     then echo armv5te;
2905         elif check_arm_arch 6;        then echo armv6;
2906         elif check_arm_arch 6J;       then echo armv6j;
2907         elif check_arm_arch 6K;       then echo armv6k;
2908         elif check_arm_arch 6Z;       then echo armv6z;
2909         elif check_arm_arch 6ZK;      then echo armv6zk;
2910         elif check_arm_arch 6T2;      then echo armv6t2;
2911         elif check_arm_arch 7;        then echo armv7;
2912         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2913         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2914         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2915         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2916         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2917         fi
2918     }
2919
2920     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2921
2922     case $cpu in
2923         armv*)
2924             cpuflags="-march=$cpu"
2925             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2926         ;;
2927         *)
2928             cpuflags="-mcpu=$cpu"
2929             case $cpu in
2930                 cortex-a*)                               subarch=armv7a  ;;
2931                 cortex-r*)                               subarch=armv7r  ;;
2932                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2933                 arm11*)                                  subarch=armv6   ;;
2934                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2935                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2936                 *)                             subarch=$(probe_arm_arch) ;;
2937             esac
2938         ;;
2939     esac
2940
2941     case "$subarch" in
2942         armv5t*)    enable fast_clz                ;;
2943         armv[6-8]*) enable fast_clz fast_unaligned ;;
2944     esac
2945
2946 elif enabled avr32; then
2947
2948     case $cpu in
2949         ap7[02]0[0-2])
2950             subarch="avr32_ap"
2951             cpuflags="-mpart=$cpu"
2952         ;;
2953         ap)
2954             subarch="avr32_ap"
2955             cpuflags="-march=$cpu"
2956         ;;
2957         uc3[ab]*)
2958             subarch="avr32_uc"
2959             cpuflags="-mcpu=$cpu"
2960         ;;
2961         uc)
2962             subarch="avr32_uc"
2963             cpuflags="-march=$cpu"
2964         ;;
2965     esac
2966
2967 elif enabled bfin; then
2968
2969     cpuflags="-mcpu=$cpu"
2970
2971 elif enabled mips; then
2972
2973     cpuflags="-march=$cpu"
2974
2975 elif enabled ppc; then
2976
2977     case $(tolower $cpu) in
2978         601|ppc601|powerpc601)
2979             cpuflags="-mcpu=601"
2980             disable altivec
2981         ;;
2982         603*|ppc603*|powerpc603*)
2983             cpuflags="-mcpu=603"
2984             disable altivec
2985         ;;
2986         604*|ppc604*|powerpc604*)
2987             cpuflags="-mcpu=604"
2988             disable altivec
2989         ;;
2990         g3|75*|ppc75*|powerpc75*)
2991             cpuflags="-mcpu=750"
2992             disable altivec
2993         ;;
2994         g4|745*|ppc745*|powerpc745*)
2995             cpuflags="-mcpu=7450"
2996         ;;
2997         74*|ppc74*|powerpc74*)
2998             cpuflags="-mcpu=7400"
2999         ;;
3000         g5|970|ppc970|powerpc970)
3001             cpuflags="-mcpu=970"
3002         ;;
3003         power[3-7]*)
3004             cpuflags="-mcpu=$cpu"
3005         ;;
3006         cell)
3007             cpuflags="-mcpu=cell"
3008             enable ldbrx
3009         ;;
3010         e500mc)
3011             cpuflags="-mcpu=e500mc"
3012             disable altivec
3013         ;;
3014         e500v2)
3015             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3016             disable altivec
3017         ;;
3018         e500)
3019             cpuflags="-mcpu=8540 -mhard-float"
3020             disable altivec
3021         ;;
3022     esac
3023
3024 elif enabled sparc; then
3025
3026     case $cpu in
3027         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3028             cpuflags="-mcpu=$cpu"
3029             disable vis
3030         ;;
3031         ultrasparc*|niagara[234])
3032             cpuflags="-mcpu=$cpu"
3033         ;;
3034     esac
3035
3036 elif enabled x86; then
3037
3038     case $cpu in
3039         i[345]86|pentium)
3040             cpuflags="-march=$cpu"
3041             disable mmx
3042         ;;
3043         # targets that do NOT support nopl and conditional mov (cmov)
3044         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3045             cpuflags="-march=$cpu"
3046             disable i686
3047         ;;
3048         # targets that do support nopl and conditional mov (cmov)
3049         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3050             cpuflags="-march=$cpu"
3051             enable i686
3052             enable fast_cmov
3053         ;;
3054         # targets that do support conditional mov but on which it's slow
3055         pentium4|pentium4m|prescott|nocona)
3056             cpuflags="-march=$cpu"
3057             enable i686
3058             disable fast_cmov
3059         ;;
3060     esac
3061
3062 fi
3063
3064 if [ "$cpu" != generic ]; then
3065     add_cflags  $cpuflags
3066     add_asflags $cpuflags
3067 fi
3068
3069 # compiler sanity check
3070 check_exec <<EOF
3071 int main(void){ return 0; }
3072 EOF
3073 if test "$?" != 0; then
3074     echo "$cc is unable to create an executable file."
3075     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3076         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3077         echo "Only do this if you know what cross compiling means."
3078     fi
3079     die "C compiler test failed."
3080 fi
3081
3082 add_cppflags -D_ISOC99_SOURCE
3083 check_cflags -std=c99
3084 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3085 #include <stdlib.h>
3086 EOF
3087 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3088 #include <stdlib.h>
3089 EOF
3090
3091 check_host_cflags -std=c99
3092 check_host_cflags -Wall
3093
3094 check_64bit(){
3095     arch32=$1
3096     arch64=$2
3097     expr=$3
3098     check_code cc "" "int test[2*($expr) - 1]" &&
3099         subarch=$arch64 || subarch=$arch32
3100 }
3101
3102 case "$arch" in
3103     aarch64|alpha|ia64)
3104         spic=$shared
3105     ;;
3106     mips)
3107         check_64bit mips mips64 '_MIPS_SIM > 1'
3108         spic=$shared
3109     ;;
3110     parisc)
3111         check_64bit parisc parisc64 'sizeof(void *) > 4'
3112         spic=$shared
3113     ;;
3114     ppc)
3115         check_64bit ppc ppc64 'sizeof(void *) > 4'
3116         spic=$shared
3117     ;;
3118     sparc)
3119         check_64bit sparc sparc64 'sizeof(void *) > 4'
3120         spic=$shared
3121     ;;
3122     x86)
3123         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3124         if test "$subarch" = "x86_64"; then
3125             spic=$shared
3126         fi
3127     ;;
3128 esac
3129
3130 enable $subarch
3131 enabled spic && enable_weak pic
3132
3133 # OS specific
3134 case $target_os in
3135     aix)
3136         SHFLAGS=-shared
3137         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3138         enabled shared && add_ldflags -Wl,-brtl
3139         ;;
3140     haiku)
3141         prefix_default="/boot/common"
3142         network_extralibs="-lnetwork"
3143         host_libs=
3144         ;;
3145     sunos)
3146         SHFLAGS='-shared -Wl,-h,$$(@F)'
3147         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3148         network_extralibs="-lsocket -lnsl"
3149         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3150         # When using suncc to build, the Solaris linker will mark
3151         # an executable with each instruction set encountered by
3152         # the Solaris assembler.  As our libraries contain their own
3153         # guards for processor-specific code, instead suppress
3154         # generation of the HWCAPS ELF section on Solaris x86 only.
3155         enabled_all suncc x86 &&
3156             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3157             add_ldflags -Wl,-M,mapfile
3158         nm_default='nm -P -g'
3159         ;;
3160     netbsd)
3161         disable symver
3162         oss_indev_extralibs="-lossaudio"
3163         oss_outdev_extralibs="-lossaudio"
3164         ;;
3165     openbsd|bitrig)
3166         disable symver
3167         SHFLAGS='-shared'
3168         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3169         SLIB_INSTALL_LINKS=
3170         oss_indev_extralibs="-lossaudio"
3171         oss_outdev_extralibs="-lossaudio"
3172         ;;
3173     dragonfly)
3174         disable symver
3175         ;;
3176     freebsd)
3177         ;;
3178     bsd/os)
3179         add_extralibs -lpoll -lgnugetopt
3180         ;;
3181     darwin)
3182         gas="gas-preprocessor.pl $cc"
3183         enabled ppc && add_asflags -force_cpusubtype_ALL
3184         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3185         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3186         add_ldflags -Wl,-dynamic,-search_paths_first
3187         SLIBSUF=".dylib"
3188         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3189         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3190         objformat="macho"
3191         enabled x86_64 && objformat="macho64"
3192         enabled_any pic shared ||
3193             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3194         ;;
3195     mingw32*)
3196         if test $target_os = "mingw32ce"; then
3197             disable network
3198         else
3199             target_os=mingw32
3200         fi
3201         LIBTARGET=i386
3202         if enabled x86_64; then
3203             LIBTARGET="i386:x86-64"
3204         elif enabled arm; then
3205             LIBTARGET=arm-wince
3206         fi
3207         check_ldflags -Wl,--nxcompat
3208         check_ldflags -Wl,--dynamicbase
3209         shlibdir_default="$bindir_default"
3210         SLIBPREF=""
3211         SLIBSUF=".dll"
3212         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3213         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3214         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3215         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3216         SLIB_INSTALL_LINKS=
3217         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3218         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3219         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3220         objformat="win32"
3221         dlltool="${cross_prefix}dlltool"
3222         ranlib=:
3223         enable dos_paths
3224         ;;
3225     win32|win64)
3226         disable symver
3227         if enabled shared; then
3228             # Link to the import library instead of the normal static library
3229             # for shared libs.
3230             LD_LIB='%.lib'
3231             # Cannot build both shared and static libs with MSVC or icl.
3232             disable static
3233         fi
3234         shlibdir_default="$bindir_default"
3235         SLIBPREF=""
3236         SLIBSUF=".dll"
3237         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3238         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3239         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3240         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3241         SLIB_INSTALL_LINKS=
3242         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3243         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3244         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3245         objformat="win32"
3246         ranlib=:
3247         enable dos_paths
3248         ;;
3249     cygwin*)
3250         target_os=cygwin
3251         shlibdir_default="$bindir_default"
3252         SLIBPREF="cyg"
3253         SLIBSUF=".dll"
3254         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3255         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3256         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3257         SLIB_INSTALL_LINKS=
3258         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3259         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3260         objformat="win32"
3261         enable dos_paths
3262         ;;
3263     *-dos|freedos|opendos)
3264         network_extralibs="-lsocket"
3265         objformat="coff"
3266         enable dos_paths
3267         add_cppflags -U__STRICT_ANSI__
3268         ;;
3269     linux)
3270         enable dv1394
3271         ;;
3272     irix*)
3273         target_os=irix
3274         ranlib="echo ignoring ranlib"
3275         ;;
3276     os/2*)
3277         ln_s="cp -f"
3278         objformat="aout"
3279         add_cppflags -D_GNU_SOURCE
3280         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3281         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3282         LIBSUF="_s.a"
3283         SLIBPREF=""
3284         SLIBSUF=".dll"
3285         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3286         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3287         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3288             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3289             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3290             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3291             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3292             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3293         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3294             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3295         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3296         enable dos_paths
3297         ;;
3298     gnu/kfreebsd)
3299         add_cppflags -D_BSD_SOURCE
3300         ;;
3301     gnu)
3302         ;;
3303     qnx)
3304         add_cppflags -D_QNX_SOURCE
3305         network_extralibs="-lsocket"
3306         ;;
3307     symbian)
3308         SLIBSUF=".dll"
3309         enable dos_paths
3310         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3311         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3312         add_ldflags -Wl,--target1-abs,--no-undefined \
3313                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3314                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3315         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3316                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3317                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3318         ;;
3319     osf1)
3320         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3321         ;;
3322     minix)
3323         ;;
3324     plan9)
3325         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3326                      -D_REENTRANT_SOURCE        \
3327                      -D_RESEARCH_SOURCE         \
3328                      -DFD_SETSIZE=96            \
3329                      -DHAVE_SOCK_OPTS
3330         add_compat strtod.o strtod=avpriv_strtod
3331         network_extralibs='-lbsd'
3332         exeobjs=compat/plan9/main.o
3333         disable avserver
3334         cp_f='cp'
3335         ;;
3336     none)
3337         ;;
3338     *)
3339         die "Unknown OS '$target_os'."
3340         ;;
3341 esac
3342
3343 # determine libc flavour
3344
3345 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3346 if check_cpp_condition features.h "defined __UCLIBC__"; then
3347     libc_type=uclibc
3348     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3349 elif check_cpp_condition features.h "defined __GLIBC__"; then
3350     libc_type=glibc
3351     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3352 # MinGW headers can be installed on Cygwin, so check for newlib first.
3353 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3354     libc_type=newlib
3355     add_cppflags -U__STRICT_ANSI__
3356 elif check_header _mingw.h; then
3357     libc_type=mingw
3358     check_cpp_condition _mingw.h \
3359         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3360             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3361         die "ERROR: MinGW runtime version must be >= 3.15."
3362     add_cppflags -U__STRICT_ANSI__
3363 elif check_func_headers stdlib.h _get_doserrno; then
3364     libc_type=msvcrt
3365     add_compat strtod.o strtod=avpriv_strtod
3366     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3367                                  _snprintf=avpriv_snprintf  \
3368                                  vsnprintf=avpriv_vsnprintf
3369     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3370     # 0x601 by default unless something else is set by the user.
3371     # This can easily lead to us detecting functions only present
3372     # in such new versions and producing binaries requiring windows 7.0.
3373     # Therefore explicitly set the default to XP unless the user has
3374     # set something else on the command line.
3375     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3376 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3377     libc_type=klibc
3378 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3379     libc_type=bionic
3380     add_compat strtod.o strtod=avpriv_strtod
3381 fi
3382
3383 test -n "$libc_type" && enable $libc_type
3384
3385 # hacks for compiler/libc/os combinations
3386
3387 if enabled_all tms470 glibc; then
3388     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3389     add_cppflags -D__USER_LABEL_PREFIX__=
3390     add_cppflags -D__builtin_memset=memset
3391     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3392     add_cflags   -pds=48    # incompatible redefinition of macro
3393 fi
3394
3395 if enabled_all ccc glibc; then
3396     add_ldflags -Wl,-z,now  # calls to libots crash without this
3397 fi
3398
3399 esc(){
3400     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3401 }
3402
3403 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3404
3405 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3406
3407 set_default $PATHS_LIST
3408 set_default nm
3409
3410 # we need to build at least one lib type
3411 if ! enabled_any static shared; then
3412     cat <<EOF
3413 At least one library type must be built.
3414 Specify --enable-static to build the static libraries or --enable-shared to
3415 build the shared libraries as well. To only build the shared libraries specify
3416 --disable-static in addition to --enable-shared.
3417 EOF
3418     exit 1;
3419 fi
3420
3421 die_license_disabled() {
3422     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3423 }
3424
3425 die_license_disabled gpl libcdio
3426 die_license_disabled gpl libx264
3427 die_license_disabled gpl libxavs
3428 die_license_disabled gpl libxvid
3429 die_license_disabled gpl x11grab
3430
3431 die_license_disabled nonfree libfaac
3432 die_license_disabled nonfree libfdk_aac
3433 die_license_disabled nonfree openssl
3434
3435 die_license_disabled version3 libopencore_amrnb
3436 die_license_disabled version3 libopencore_amrwb
3437 die_license_disabled version3 libvo_aacenc
3438 die_license_disabled version3 libvo_amrwbenc
3439
3440 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3441
3442 disabled optimizations || check_cflags -fomit-frame-pointer
3443
3444 enable_weak_pic() {
3445     disabled pic && return
3446     enable pic
3447     add_cppflags -DPIC
3448     case "$target_os" in
3449     mingw*|cygwin*)
3450         ;;
3451     *)
3452         add_cflags -fPIC
3453         ;;
3454     esac
3455     add_asflags  -fPIC
3456 }
3457
3458 enabled pic && enable_weak_pic
3459
3460 check_cc <<EOF || die "Symbol mangling check failed."
3461 int ff_extern;
3462 EOF
3463 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3464 extern_prefix=${sym%%ff_extern*}
3465
3466 check_cc <<EOF && enable_weak inline_asm
3467 void foo(void) { __asm__ volatile ("" ::); }
3468 EOF
3469
3470 _restrict=
3471 for restrict_keyword in restrict __restrict__ __restrict; do
3472     check_cc <<EOF && _restrict=$restrict_keyword && break
3473 void foo(char * $restrict_keyword p);
3474 EOF
3475 done
3476
3477 check_cc <<EOF && enable pragma_deprecated
3478 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3479 EOF
3480
3481 check_cc <<EOF && enable attribute_packed
3482 struct { int x; } __attribute__((packed)) x;
3483 EOF
3484
3485 check_cc <<EOF && enable attribute_may_alias
3486 union { int x; } __attribute__((may_alias)) x;
3487 EOF
3488
3489 check_cc <<EOF || die "endian test failed"
3490 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3491 EOF
3492 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3493
3494 check_inline_asm inline_asm_labels '"1:\n"'
3495
3496 if enabled alpha; then
3497
3498     check_cflags -mieee
3499
3500 elif enabled arm; then
3501
3502     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3503     enabled thumb && check_cflags -mthumb || check_cflags -marm
3504     nogas=die
3505
3506     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3507         enable vfp_args
3508     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3509         case "${cross_prefix:-$cc}" in
3510             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3511             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3512 __asm__ (".eabi_attribute 28, 1");
3513 int main(void) { return 0; }
3514 EOF
3515         esac
3516         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3517     fi
3518
3519     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3520     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3521     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3522     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3523     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3524     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3525
3526     [ $target_os = linux ] ||
3527         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3528             $ARCH_EXT_LIST_ARM
3529
3530     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3531     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3532
3533     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3534
3535 elif enabled mips; then
3536
3537     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3538
3539 elif enabled parisc; then
3540
3541     if enabled gcc; then
3542         case $($cc -dumpversion) in
3543             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3544         esac
3545     fi
3546
3547 elif enabled ppc; then
3548
3549     enable local_aligned_8 local_aligned_16
3550
3551     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3552     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3553     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3554     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3555
3556     # AltiVec flags: The FSF version of GCC differs from the Apple version
3557     if enabled altivec; then
3558         nogas=warn
3559         check_cflags -maltivec -mabi=altivec &&
3560         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3561         check_cflags -faltivec
3562
3563         # check if our compiler supports Motorola AltiVec C API
3564         check_cc <<EOF || disable altivec
3565 $inc_altivec_h
3566 int main(void) {
3567     vector signed int v1 = (vector signed int) { 0 };
3568     vector signed int v2 = (vector signed int) { 1 };
3569     v1 = vec_add(v1, v2);
3570     return 0;
3571 }
3572 EOF
3573
3574         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3575     fi
3576
3577 elif enabled sparc; then
3578
3579     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3580
3581 elif enabled x86; then
3582
3583     check_builtin rdtsc    intrin.h   "__rdtsc()"
3584     check_builtin mm_empty mmintrin.h "_mm_empty()"
3585
3586     enable local_aligned_8 local_aligned_16
3587
3588     # check whether EBP is available on x86
3589     # As 'i' is stored on the stack, this program will crash
3590     # if the base pointer is used to access it because the
3591     # base pointer is cleared in the inline assembly code.
3592     check_exec_crash <<EOF && enable ebp_available
3593 volatile int i=0;
3594 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3595 return i;
3596 EOF
3597
3598     # check whether EBX is available on x86
3599     check_inline_asm ebx_available '""::"b"(0)' &&
3600         check_inline_asm ebx_available '"":::"%ebx"'
3601
3602     # check whether xmm clobbers are supported
3603     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3604
3605     # check whether binutils is new enough to compile SSSE3/MMXEXT
3606     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3607     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3608
3609     if ! disabled_any asm mmx yasm; then
3610         if check_cmd $yasmexe --version; then
3611             enabled x86_64 && yasm_extra="-m amd64"
3612             yasm_debug="-g dwarf2"
3613         elif check_cmd nasm -v; then
3614             yasmexe=nasm
3615             yasm_debug="-g -F dwarf"
3616             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3617         fi
3618
3619         YASMFLAGS="-f $objformat $yasm_extra"
3620         enabled pic               && append YASMFLAGS "-DPIC"
3621         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3622         case "$objformat" in
3623             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3624         esac
3625
3626         check_yasm "movbe ecx, [5]" && enable yasm ||
3627             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3628         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3629         check_yasm "CPU amdnop" && enable cpunop
3630     fi
3631
3632     case "$cpu" in
3633         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3634             disable fast_clz
3635         ;;
3636     esac
3637
3638 fi
3639
3640 if enabled asm; then
3641     as=${gas:=$as}
3642     check_as <<EOF && enable gnu_as || \
3643         $nogas "GNU assembler not found, install gas-preprocessor"
3644 .macro m n
3645 \n: .int 0
3646 .endm
3647 m x
3648 EOF
3649 fi
3650
3651 check_ldflags -Wl,--as-needed
3652
3653 if check_func dlopen; then
3654     ldl=
3655 elif check_func dlopen -ldl; then
3656     ldl=-ldl
3657 fi
3658
3659 if ! disabled network; then
3660     check_type "sys/types.h sys/socket.h" socklen_t
3661     check_type netdb.h "struct addrinfo"
3662     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3663     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3664     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3665     check_type netinet/in.h "struct sockaddr_in6"
3666     check_type poll.h "struct pollfd"
3667     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3668     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3669     check_type netinet/sctp.h "struct sctp_event_subscribe"
3670     check_func getaddrinfo $network_extralibs
3671     check_func getservbyport $network_extralibs
3672     # Prefer arpa/inet.h over winsock2
3673     if check_header arpa/inet.h ; then
3674         check_func closesocket
3675     elif check_header winsock2.h ; then
3676         check_func_headers winsock2.h closesocket -lws2 &&
3677             network_extralibs="-lws2" ||
3678         { check_func_headers winsock2.h closesocket -lws2_32 &&
3679             network_extralibs="-lws2_32"; }
3680         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3681         check_type ws2tcpip.h socklen_t
3682         check_type ws2tcpip.h "struct addrinfo"
3683         check_type ws2tcpip.h "struct group_source_req"
3684         check_type ws2tcpip.h "struct ip_mreq_source"
3685         check_type ws2tcpip.h "struct ipv6_mreq"
3686         check_type winsock2.h "struct pollfd"
3687         check_type ws2tcpip.h "struct sockaddr_in6"
3688         check_type ws2tcpip.h "struct sockaddr_storage"
3689         check_struct winsock2.h "struct sockaddr" sa_len
3690     else
3691         disable network
3692     fi
3693 fi
3694
3695 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3696 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3697
3698 check_func  fcntl
3699 check_func  fork
3700 check_func_headers stdlib.h getenv
3701 check_func  gethrtime
3702 check_func  getopt
3703 check_func  getrusage
3704 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3705 check_func  gettimeofday
3706 check_func  inet_aton $network_extralibs
3707 check_func  isatty
3708 check_func  localtime_r
3709 check_func  ${malloc_prefix}memalign            && enable memalign
3710 check_func  mkstemp
3711 check_func  mmap
3712 check_func  mprotect
3713 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3714 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3715 check_func  setrlimit
3716 check_func  strerror_r
3717 check_func  strptime
3718 check_func  strtok_r
3719 check_func  sched_getaffinity
3720 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3721 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3722 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3723 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3724 check_func  sysconf
3725 check_func  sysctl
3726 check_func  usleep
3727 check_func_headers io.h setmode
3728 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3729 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3730 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3731 check_func_headers windows.h GetProcessAffinityMask
3732 check_func_headers windows.h GetProcessTimes
3733 check_func_headers windows.h GetSystemTimeAsFileTime
3734 check_func_headers windows.h MapViewOfFile
3735 check_func_headers windows.h SetConsoleTextAttribute
3736 check_func_headers windows.h Sleep
3737 check_func_headers windows.h VirtualAlloc
3738
3739 check_header direct.h
3740 check_header dlfcn.h
3741 check_header dxva.h
3742 check_header dxva2api.h
3743 check_header io.h
3744 check_header malloc.h
3745 check_header poll.h
3746 check_header sys/mman.h
3747 check_header sys/param.h
3748 check_header sys/resource.h
3749 check_header sys/select.h
3750 check_header sys/time.h
3751 check_header sys/un.h
3752 check_header unistd.h
3753 check_header vdpau/vdpau.h
3754 check_header vdpau/vdpau_x11.h
3755 check_header VideoDecodeAcceleration/VDADecoder.h
3756 check_header windows.h
3757 check_header X11/extensions/XvMClib.h
3758
3759 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3760 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3761
3762 if ! disabled w32threads && ! enabled pthreads; then
3763     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3764 fi
3765
3766 # check for some common methods of building with pthread support
3767 # do this before the optional library checks as some of them require pthreads
3768 if ! disabled pthreads && ! enabled w32threads; then
3769     enable pthreads
3770     if check_func pthread_create; then
3771         :
3772     elif check_func pthread_create -pthread; then
3773         add_cflags -pthread
3774         add_extralibs -pthread
3775     elif check_func pthread_create -pthreads; then
3776         add_cflags -pthreads
3777         add_extralibs -pthreads
3778     elif check_func pthread_create -lpthreadGC2; then
3779         add_extralibs -lpthreadGC2
3780     elif ! check_lib pthread.h pthread_create -lpthread; then
3781         disable pthreads
3782     fi
3783 fi
3784
3785 for thread in $THREADS_LIST; do
3786     if enabled $thread; then
3787         test -n "$thread_type" &&
3788             die "ERROR: Only one thread type must be selected." ||
3789             thread_type="$thread"
3790     fi
3791 done
3792
3793 enabled sync_val_compare_and_swap && enable atomics_gcc
3794 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
3795 enabled MemoryBarrier && enable atomics_win32
3796
3797 check_lib math.h sin -lm && LIBM="-lm"
3798 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3799
3800 atan2f_args=2
3801 ldexpf_args=2
3802 powf_args=2
3803
3804 for func in $MATH_FUNCS; do
3805     eval check_mathfunc $func \${${func}_args:-1}
3806 done
3807
3808 # these are off by default, so fail if requested and not available
3809 enabled avisynth          && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3810 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3811 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3812 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3813 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3814 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3815 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3816                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3817                                done || die "ERROR: libgsm not found"; }
3818 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3819 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3820 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3821 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3822 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3823 enabled libopenjpeg       && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3824 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3825 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3826 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3827 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3828 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
3829 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3830 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3831 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3832 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3833 enabled libvpx            && {
3834     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3835                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
3836     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3837                                     die "ERROR: libvpx encoder version must be >=0.9.6"; }
3838     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3839     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3840 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
3841 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
3842                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3843                                die "ERROR: libx264 version must be >= 0.118."; }
3844 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
3845 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
3846 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3847                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3848                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3849                                die "ERROR: openssl not found"; }
3850
3851 if enabled gnutls; then
3852     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3853     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3854 fi
3855
3856 # libdc1394 check
3857 if enabled libdc1394; then
3858     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3859         enable libdc1394_2; } ||
3860     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3861         enable libdc1394_1; } ||
3862     die "ERROR: No version of libdc1394 found "
3863 fi
3864
3865 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3866     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3867     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3868     enable sdl
3869 fi
3870
3871 perl -v            > /dev/null 2>&1 && enable perl      || disable perl
3872 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3873
3874 check_header linux/fb.h
3875 check_header linux/videodev2.h
3876 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3877
3878 check_header sys/videoio.h
3879
3880 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$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"