build: use pkg-config to detect libmodplug
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg 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 FFMPEG, 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 FFmpeg."
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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --enable-rpath           use rpath to allow installing libraries in paths
91                            not part of the dynamic linker search path
92                            use rpath when linking programs [USE WITH CARE]
93
94 Licensing options:
95   --enable-gpl             allow use of GPL code, the resulting libs
96                            and binaries will be under GPL [no]
97   --enable-version3        upgrade (L)GPL to version 3 [no]
98   --enable-nonfree         allow use of nonfree code, the resulting libs
99                            and binaries will be unredistributable [no]
100
101 Configuration options:
102   --disable-static         do not build static libraries [no]
103   --enable-shared          build shared libraries [no]
104   --enable-small           optimize for size instead of speed
105   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
106   --enable-gray            enable full grayscale support (slower color)
107   --disable-swscale-alpha  disable alpha channel support in swscale
108   --disable-all            disable building components, libraries and programs
109   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
110   --enable-raise-major     increase major version numbers in sonames [no]
111
112 Program options:
113   --disable-programs       do not build command line programs
114   --disable-ffmpeg         disable ffmpeg build
115   --disable-ffplay         disable ffplay build
116   --disable-ffprobe        disable ffprobe build
117   --disable-ffserver       disable ffserver build
118
119 Documentation options:
120   --disable-doc            do not build documentation
121   --disable-htmlpages      do not build HTML documentation pages
122   --disable-manpages       do not build man documentation pages
123   --disable-podpages       do not build POD documentation pages
124   --disable-txtpages       do not build text documentation pages
125
126 Component options:
127   --disable-avdevice       disable libavdevice build
128   --disable-avcodec        disable libavcodec build
129   --disable-avformat       disable libavformat build
130   --disable-avutil         disable libavutil build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [auto]
137   --disable-w32threads     disable Win32 threads [auto]
138   --disable-os2threads     disable OS/2 threads [auto]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-pixelutils     disable pixel utils in libavutil
149
150 Hardware accelerators:
151   --disable-dxva2          disable DXVA2 code [autodetect]
152   --disable-vaapi          disable VAAPI code [autodetect]
153   --disable-vda            disable VDA code [autodetect]
154   --disable-vdpau          disable VDPAU code [autodetect]
155
156 Individual component options:
157   --disable-everything     disable all components listed below
158   --disable-encoder=NAME   disable encoder NAME
159   --enable-encoder=NAME    enable encoder NAME
160   --disable-encoders       disable all encoders
161   --disable-decoder=NAME   disable decoder NAME
162   --enable-decoder=NAME    enable decoder NAME
163   --disable-decoders       disable all decoders
164   --disable-hwaccel=NAME   disable hwaccel NAME
165   --enable-hwaccel=NAME    enable hwaccel NAME
166   --disable-hwaccels       disable all hwaccels
167   --disable-muxer=NAME     disable muxer NAME
168   --enable-muxer=NAME      enable muxer NAME
169   --disable-muxers         disable all muxers
170   --disable-demuxer=NAME   disable demuxer NAME
171   --enable-demuxer=NAME    enable demuxer NAME
172   --disable-demuxers       disable all demuxers
173   --enable-parser=NAME     enable parser NAME
174   --disable-parser=NAME    disable parser NAME
175   --disable-parsers        disable all parsers
176   --enable-bsf=NAME        enable bitstream filter NAME
177   --disable-bsf=NAME       disable bitstream filter NAME
178   --disable-bsfs           disable all bitstream filters
179   --enable-protocol=NAME   enable protocol NAME
180   --disable-protocol=NAME  disable protocol NAME
181   --disable-protocols      disable all protocols
182   --enable-indev=NAME      enable input device NAME
183   --disable-indev=NAME     disable input device NAME
184   --disable-indevs         disable input devices
185   --enable-outdev=NAME     enable output device NAME
186   --disable-outdev=NAME    disable output device NAME
187   --disable-outdevs        disable output devices
188   --disable-devices        disable all devices
189   --enable-filter=NAME     enable filter NAME
190   --disable-filter=NAME    disable filter NAME
191   --disable-filters        disable all filters
192
193 External library support:
194   --enable-avisynth        enable reading of AviSynth script files [no]
195   --disable-bzlib          disable bzlib [autodetect]
196   --enable-fontconfig      enable fontconfig
197   --enable-frei0r          enable frei0r video filtering
198   --enable-gnutls          enable gnutls [no]
199   --disable-iconv          disable iconv [autodetect]
200   --enable-ladspa          enable LADSPA audio filtering
201   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
202   --enable-libass          enable libass subtitles rendering [no]
203   --enable-libbluray       enable BluRay reading using libbluray [no]
204   --enable-libbs2b         enable bs2b DSP library [no]
205   --enable-libcaca         enable textual display using libcaca
206   --enable-libcelt         enable CELT decoding via libcelt [no]
207   --enable-libcdio         enable audio CD grabbing with libcdio
208   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
209                            and libraw1394 [no]
210   --enable-libfaac         enable AAC encoding via libfaac [no]
211   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
212   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
213   --enable-libfreetype     enable libfreetype [no]
214   --enable-libfribidi      enable libfribidi [no]
215   --enable-libgme          enable Game Music Emu via libgme [no]
216   --enable-libgsm          enable GSM de/encoding via libgsm [no]
217   --enable-libiec61883     enable iec61883 via libiec61883 [no]
218   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
219   --enable-libmodplug      enable ModPlug via libmodplug [no]
220   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
221   --enable-libnut          enable NUT (de)muxing via libnut,
222                            native (de)muxer exists [no]
223   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
224   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
225   --enable-libopencv       enable video filtering via libopencv [no]
226   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
227   --enable-libopus         enable Opus de/encoding via libopus [no]
228   --enable-libpulse        enable Pulseaudio input via libpulse [no]
229   --enable-libquvi         enable quvi input via libquvi [no]
230   --enable-librtmp         enable RTMP[E] support via librtmp [no]
231   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
232   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
233   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
234   --enable-libsoxr         enable Include libsoxr resampling [no]
235   --enable-libspeex        enable Speex de/encoding via libspeex [no]
236   --enable-libssh          enable SFTP protocol via libssh [no]
237   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
238   --enable-libtheora       enable Theora encoding via libtheora [no]
239   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
240   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
241   --enable-libv4l2         enable libv4l2/v4l-utils [no]
242   --enable-libvidstab      enable video stabilization using vid.stab [no]
243   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
244   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
245   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
246                            native implementation exists [no]
247   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
248   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
249   --enable-libwebp         enable WebP encoding via libwebp [no]
250   --enable-libx264         enable H.264 encoding via x264 [no]
251   --enable-libx265         enable HEVC encoding via x265 [no]
252   --enable-libxavs         enable AVS encoding via xavs [no]
253   --enable-libxvid         enable Xvid encoding via xvidcore,
254                            native MPEG-4/Xvid encoder exists [no]
255   --enable-libzmq          enable message passing via libzmq [no]
256   --enable-libzvbi         enable teletext support via libzvbi [no]
257   --disable-lzma           disable lzma [autodetect]
258   --enable-decklink        enable Blackmagick DeckLink output [no]
259   --enable-openal          enable OpenAL 1.1 capture support [no]
260   --enable-opencl          enable OpenCL code
261   --enable-opengl          enable OpenGL rendering [no]
262   --enable-openssl         enable openssl [no]
263   --enable-x11grab         enable X11 grabbing [no]
264   --disable-xlib           disable xlib [autodetect]
265   --disable-zlib           disable zlib [autodetect]
266
267 Toolchain options:
268   --arch=ARCH              select architecture [$arch]
269   --cpu=CPU                select the minimum required CPU (affects
270                            instruction selection, may crash on older CPUs)
271   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
272   --progs-suffix=SUFFIX    program name suffix []
273   --enable-cross-compile   assume a cross-compiler is used
274   --sysroot=PATH           root of cross-build tree
275   --sysinclude=PATH        location of cross-build system headers
276   --target-os=OS           compiler targets OS [$target_os]
277   --target-exec=CMD        command to run executables on target
278   --target-path=DIR        path to view of build directory on target
279   --target-samples=DIR     path to samples directory on target
280   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
281   --toolchain=NAME         set tool defaults according to NAME
282   --nm=NM                  use nm tool NM [$nm_default]
283   --ar=AR                  use archive tool AR [$ar_default]
284   --as=AS                  use assembler AS [$as_default]
285   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
286   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
287   --cc=CC                  use C compiler CC [$cc_default]
288   --cxx=CXX                use C compiler CXX [$cxx_default]
289   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
290   --ld=LD                  use linker LD [$ld_default]
291   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
292   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
293   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
294   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
295   --host-cc=HOSTCC         use host C compiler HOSTCC
296   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
297   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
298   --host-ld=HOSTLD         use host linker HOSTLD
299   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
300   --host-libs=HLIBS        use libs HLIBS when linking for host
301   --host-os=OS             compiler host OS [$target_os]
302   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
303   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
304   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
305   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
306   --extra-libs=ELIBS       add ELIBS [$ELIBS]
307   --extra-version=STRING   version string suffix []
308   --optflags=OPTFLAGS      override optimization-related compiler flags
309   --build-suffix=SUFFIX    library name suffix []
310   --enable-pic             build position-independent code
311   --enable-thumb           compile for Thumb instruction set
312   --enable-lto             use link-time optimization
313
314 Advanced options (experts only):
315   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
316   --disable-symver         disable symbol versioning
317   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
318   --disable-safe-bitstream-reader
319                            disable buffer boundary checking in bitreaders
320                            (faster, but may crash)
321   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
322   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
323
324 Optimization options (experts only):
325   --disable-asm            disable all assembly optimizations
326   --disable-altivec        disable AltiVec optimizations
327   --disable-amd3dnow       disable 3DNow! optimizations
328   --disable-amd3dnowext    disable 3DNow! extended optimizations
329   --disable-mmx            disable MMX optimizations
330   --disable-mmxext         disable MMXEXT optimizations
331   --disable-sse            disable SSE optimizations
332   --disable-sse2           disable SSE2 optimizations
333   --disable-sse3           disable SSE3 optimizations
334   --disable-ssse3          disable SSSE3 optimizations
335   --disable-sse4           disable SSE4 optimizations
336   --disable-sse42          disable SSE4.2 optimizations
337   --disable-avx            disable AVX optimizations
338   --disable-xop            disable XOP optimizations
339   --disable-fma3           disable FMA3 optimizations
340   --disable-fma4           disable FMA4 optimizations
341   --disable-avx2           disable AVX2 optimizations
342   --disable-armv5te        disable armv5te optimizations
343   --disable-armv6          disable armv6 optimizations
344   --disable-armv6t2        disable armv6t2 optimizations
345   --disable-vfp            disable VFP optimizations
346   --disable-neon           disable NEON optimizations
347   --disable-inline-asm     disable use of inline assembly
348   --disable-yasm           disable use of nasm/yasm assembly
349   --disable-mips32r2       disable MIPS32R2 optimizations
350   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
351   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
352   --disable-mipsfpu        disable floating point MIPS optimizations
353   --disable-fast-unaligned consider unaligned accesses slow
354
355 Developer options (useful when working on FFmpeg itself):
356   --disable-debug          disable debugging symbols
357   --enable-debug=LEVEL     set the debug level [$debuglevel]
358   --disable-optimizations  disable compiler optimizations
359   --enable-extra-warnings  enable more compiler warnings
360   --disable-stripping      disable stripping of executables and shared libraries
361   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
362                            2 causes a slowdown at runtime.
363   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
364   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
365                            leaks and errors, using the specified valgrind binary.
366                            Cannot be combined with --target-exec
367   --enable-ftrapv          Trap arithmetic overflows
368   --samples=PATH           location of test samples for FATE, if not set use
369                            \$FATE_SAMPLES at make invocation time.
370   --enable-neon-clobber-test check NEON registers for clobbering (should be
371                            used only for debugging purposes)
372   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
373                            should be used only for debugging purposes)
374   --enable-random          randomly enable/disable components
375   --disable-random
376   --enable-random=LIST     randomly enable/disable specific components or
377   --disable-random=LIST    component groups. LIST is a comma-separated list
378                            of NAME[:PROB] entries where NAME is a component
379                            (group) and PROB the probability associated with
380                            NAME (default 0.5).
381   --random-seed=VALUE      seed value for --enable/disable-random
382
383 NOTE: Object files are built at the place where configure is launched.
384 EOF
385   exit 0
386 }
387
388 quotes='""'
389
390 log(){
391     echo "$@" >> $logfile
392 }
393
394 log_file(){
395     log BEGIN $1
396     pr -n -t $1 >> $logfile
397     log END $1
398 }
399
400 echolog(){
401     log "$@"
402     echo "$@"
403 }
404
405 warn(){
406     log "WARNING: $*"
407     WARNINGS="${WARNINGS}WARNING: $*\n"
408 }
409
410 die(){
411     echolog "$@"
412     cat <<EOF
413
414 If you think configure made a mistake, make sure you are using the latest
415 version from Git.  If the latest version fails, report the problem to the
416 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
417 EOF
418     if disabled logging; then
419         cat <<EOF
420 Rerun configure with logging enabled (do not use --disable-logging), and
421 include the log this produces with your report.
422 EOF
423     else
424         cat <<EOF
425 Include the log file "$logfile" produced by configure as this will help
426 solve the problem.
427 EOF
428     fi
429     exit 1
430 }
431
432 # Avoid locale weirdness, besides we really just want to translate ASCII.
433 toupper(){
434     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
435 }
436
437 tolower(){
438     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
439 }
440
441 c_escape(){
442     echo "$*" | sed 's/["\\]/\\\0/g'
443 }
444
445 sh_quote(){
446     v=$(echo "$1" | sed "s/'/'\\\\''/g")
447     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
448     echo "$v"
449 }
450
451 cleanws(){
452     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
453 }
454
455 filter(){
456     pat=$1
457     shift
458     for v; do
459         eval "case $v in $pat) echo $v ;; esac"
460     done
461 }
462
463 filter_out(){
464     pat=$1
465     shift
466     for v; do
467         eval "case $v in $pat) ;; *) echo $v ;; esac"
468     done
469 }
470
471 map(){
472     m=$1
473     shift
474     for v; do eval $m; done
475 }
476
477 add_suffix(){
478     suffix=$1
479     shift
480     for v; do echo ${v}${suffix}; done
481 }
482
483 set_all(){
484     value=$1
485     shift
486     for var in $*; do
487         eval $var=$value
488     done
489 }
490
491 set_weak(){
492     value=$1
493     shift
494     for var; do
495         eval : \${$var:=$value}
496     done
497 }
498
499 sanitize_var_name(){
500     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
501 }
502
503 set_safe(){
504     var=$1
505     shift
506     eval $(sanitize_var_name "$var")='$*'
507 }
508
509 get_safe(){
510     eval echo \$$(sanitize_var_name "$1")
511 }
512
513 pushvar(){
514     for pvar in $*; do
515         eval level=\${${pvar}_level:=0}
516         eval ${pvar}_${level}="\$$pvar"
517         eval ${pvar}_level=$(($level+1))
518     done
519 }
520
521 popvar(){
522     for pvar in $*; do
523         eval level=\${${pvar}_level:-0}
524         test $level = 0 && continue
525         eval level=$(($level-1))
526         eval $pvar="\${${pvar}_${level}}"
527         eval ${pvar}_level=$level
528         eval unset ${pvar}_${level}
529     done
530 }
531
532 enable(){
533     set_all yes $*
534 }
535
536 disable(){
537     set_all no $*
538 }
539
540 enable_weak(){
541     set_weak yes $*
542 }
543
544 disable_weak(){
545     set_weak no $*
546 }
547
548 enable_safe(){
549     for var; do
550         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
551     done
552 }
553
554 disable_safe(){
555     for var; do
556         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
557     done
558 }
559
560 do_enable_deep(){
561     for var; do
562         enabled $var && continue
563         eval sel="\$${var}_select"
564         eval sgs="\$${var}_suggest"
565         pushvar var sgs
566         enable_deep $sel
567         popvar sgs
568         enable_deep_weak $sgs
569         popvar var
570     done
571 }
572
573 enable_deep(){
574     do_enable_deep $*
575     enable $*
576 }
577
578 enable_deep_weak(){
579     for var; do
580         disabled $var && continue
581         pushvar var
582         do_enable_deep $var
583         popvar var
584         enable_weak $var
585     done
586 }
587
588 enabled(){
589     test "${1#!}" = "$1" && op== || op=!=
590     eval test "x\$${1#!}" $op "xyes"
591 }
592
593 disabled(){
594     test "${1#!}" = "$1" && op== || op=!=
595     eval test "x\$${1#!}" $op "xno"
596 }
597
598 enabled_all(){
599     for opt; do
600         enabled $opt || return 1
601     done
602 }
603
604 disabled_all(){
605     for opt; do
606         disabled $opt || return 1
607     done
608 }
609
610 enabled_any(){
611     for opt; do
612         enabled $opt && return 0
613     done
614 }
615
616 disabled_any(){
617     for opt; do
618         disabled $opt && return 0
619     done
620     return 1
621 }
622
623 set_default(){
624     for opt; do
625         eval : \${$opt:=\$${opt}_default}
626     done
627 }
628
629 is_in(){
630     value=$1
631     shift
632     for var in $*; do
633         [ $var = $value ] && return 0
634     done
635     return 1
636 }
637
638 do_check_deps(){
639     for cfg; do
640         cfg="${cfg#!}"
641         enabled ${cfg}_checking && die "Circular dependency for $cfg."
642         disabled ${cfg}_checking && continue
643         enable ${cfg}_checking
644         append allopts $cfg
645
646         eval dep_all="\$${cfg}_deps"
647         eval dep_any="\$${cfg}_deps_any"
648         eval dep_sel="\$${cfg}_select"
649         eval dep_sgs="\$${cfg}_suggest"
650         eval dep_ifa="\$${cfg}_if"
651         eval dep_ifn="\$${cfg}_if_any"
652
653         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
654         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
655         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
656
657         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
658         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
659         enabled_all  $dep_all || disable $cfg
660         enabled_any  $dep_any || disable $cfg
661         disabled_any $dep_sel && disable $cfg
662
663         if enabled $cfg; then
664             enable_deep $dep_sel
665             enable_deep_weak $dep_sgs
666         fi
667
668         disable ${cfg}_checking
669     done
670 }
671
672 check_deps(){
673     unset allopts
674
675     do_check_deps "$@"
676
677     for cfg in $allopts; do
678         enabled $cfg || continue
679         eval dep_extralibs="\$${cfg}_extralibs"
680         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
681     done
682 }
683
684 print_config(){
685     pfx=$1
686     files=$2
687     shift 2
688     map 'eval echo "$v \${$v:-no}"' "$@" |
689     awk "BEGIN { split(\"$files\", files) }
690         {
691             c = \"$pfx\" toupper(\$1);
692             v = \$2;
693             sub(/yes/, 1, v);
694             sub(/no/,  0, v);
695             for (f in files) {
696                 file = files[f];
697                 if (file ~ /\\.h\$/) {
698                     printf(\"#define %s %d\\n\", c, v) >>file;
699                 } else if (file ~ /\\.asm\$/) {
700                     printf(\"%%define %s %d\\n\", c, v) >>file;
701                 } else if (file ~ /\\.mak\$/) {
702                     n = -v ? \"\" : \"!\";
703                     printf(\"%s%s=yes\\n\", n, c) >>file;
704                 } else if (file ~ /\\.texi\$/) {
705                     pre = -v ? \"\" : \"@c \";
706                     yesno = \$2;
707                     c2 = tolower(c);
708                     gsub(/_/, \"-\", c2);
709                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
710                 }
711             }
712         }"
713 }
714
715 print_enabled(){
716     suf=$1
717     shift
718     for v; do
719         enabled $v && printf "%s\n" ${v%$suf};
720     done
721 }
722
723 append(){
724     var=$1
725     shift
726     eval "$var=\"\$$var $*\""
727 }
728
729 prepend(){
730     var=$1
731     shift
732     eval "$var=\"$* \$$var\""
733 }
734
735 unique(){
736     var=$1
737     uniq_list=""
738     for tok in $(eval echo \$$var); do
739         uniq_list="$(filter_out $tok $uniq_list) $tok"
740     done
741     eval "$var=\"${uniq_list}\""
742 }
743
744 add_cppflags(){
745     append CPPFLAGS "$@"
746 }
747
748 add_cflags(){
749     append CFLAGS $($cflags_filter "$@")
750 }
751
752 add_cxxflags(){
753     append CXXFLAGS $($cflags_filter "$@")
754 }
755
756 add_asflags(){
757     append ASFLAGS $($asflags_filter "$@")
758 }
759
760 add_ldflags(){
761     append LDFLAGS $($ldflags_filter "$@")
762 }
763
764 add_ldexeflags(){
765     append LDEXEFLAGS $($ldflags_filter "$@")
766 }
767
768 add_stripflags(){
769     append ASMSTRIPFLAGS "$@"
770 }
771
772 add_extralibs(){
773     prepend extralibs $($ldflags_filter "$@")
774 }
775
776 add_host_cppflags(){
777     append host_cppflags "$@"
778 }
779
780 add_host_cflags(){
781     append host_cflags $($host_cflags_filter "$@")
782 }
783
784 add_host_ldflags(){
785     append host_ldflags $($host_ldflags_filter "$@")
786 }
787
788 add_compat(){
789     append compat_objs $1
790     shift
791     map 'add_cppflags -D$v' "$@"
792 }
793
794 check_cmd(){
795     log "$@"
796     "$@" >> $logfile 2>&1
797 }
798
799 check_stat(){
800     log check_stat "$@"
801     stat "$1" >> $logfile 2>&1
802 }
803
804 cc_o(){
805     eval printf '%s\\n' $CC_O
806 }
807
808 cc_e(){
809     eval printf '%s\\n' $CC_E
810 }
811
812 check_cc(){
813     log check_cc "$@"
814     cat > $TMPC
815     log_file $TMPC
816     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
817 }
818
819 check_cxx(){
820     log check_cxx "$@"
821     cat > $TMPCPP
822     log_file $TMPCPP
823     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
824 }
825
826 check_oc(){
827     log check_oc "$@"
828     cat > $TMPM
829     log_file $TMPM
830     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
831 }
832
833 check_cpp(){
834     log check_cpp "$@"
835     cat > $TMPC
836     log_file $TMPC
837     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
838 }
839
840 as_o(){
841     eval printf '%s\\n' $AS_O
842 }
843
844 check_as(){
845     log check_as "$@"
846     cat > $TMPS
847     log_file $TMPS
848     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
849 }
850
851 check_inline_asm(){
852     log check_inline_asm "$@"
853     name="$1"
854     code="$2"
855     shift 2
856     disable $name
857     check_cc "$@" <<EOF && enable $name
858 void foo(void){ __asm__ volatile($code); }
859 EOF
860 }
861
862 check_insn(){
863     log check_insn "$@"
864     check_inline_asm ${1}_inline "\"$2\""
865     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
866 }
867
868 check_yasm(){
869     log check_yasm "$@"
870     echo "$1" > $TMPS
871     log_file $TMPS
872     shift 1
873     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
874 }
875
876 ld_o(){
877     eval printf '%s\\n' $LD_O
878 }
879
880 check_ld(){
881     log check_ld "$@"
882     type=$1
883     shift 1
884     flags=$(filter_out '-l*|*.so' $@)
885     libs=$(filter '-l*|*.so' $@)
886     check_$type $($cflags_filter $flags) || return
887     flags=$($ldflags_filter $flags)
888     libs=$($ldflags_filter $libs)
889     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
890 }
891
892 print_include(){
893     hdr=$1
894     test "${hdr%.h}" = "${hdr}" &&
895         echo "#include $hdr"    ||
896         echo "#include <$hdr>"
897 }
898
899 check_code(){
900     log check_code "$@"
901     check=$1
902     headers=$2
903     code=$3
904     shift 3
905     {
906         for hdr in $headers; do
907             print_include $hdr
908         done
909         echo "int main(void) { $code; return 0; }"
910     } | check_$check "$@"
911 }
912
913 check_cppflags(){
914     log check_cppflags "$@"
915     check_cc "$@" <<EOF && append CPPFLAGS "$@"
916 int x;
917 EOF
918 }
919
920 test_cflags(){
921     log test_cflags "$@"
922     set -- $($cflags_filter "$@")
923     check_cc "$@" <<EOF
924 int x;
925 EOF
926 }
927
928 check_cflags(){
929     log check_cflags "$@"
930     test_cflags "$@" && add_cflags "$@"
931 }
932
933 check_cxxflags(){
934     log check_cxxflags "$@"
935     set -- $($cflags_filter "$@")
936     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
937 int x;
938 EOF
939 }
940
941 test_ldflags(){
942     log test_ldflags "$@"
943     check_ld "cc" "$@" <<EOF
944 int main(void){ return 0; }
945 EOF
946 }
947
948 check_ldflags(){
949     log check_ldflags "$@"
950     test_ldflags "$@" && add_ldflags "$@"
951 }
952
953 test_stripflags(){
954     log test_stripflags "$@"
955     # call check_cc to get a fresh TMPO
956     check_cc <<EOF
957 int main(void) { return 0; }
958 EOF
959     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
960 }
961
962 check_stripflags(){
963     log check_stripflags "$@"
964     test_stripflags "$@" && add_stripflags "$@"
965 }
966
967 check_header(){
968     log check_header "$@"
969     header=$1
970     shift
971     disable_safe $header
972     check_cpp "$@" <<EOF && enable_safe $header
973 #include <$header>
974 int x;
975 EOF
976 }
977
978 check_header_oc(){
979     log check_header_oc "$@"
980     rm -f -- "$TMPO"
981     header=$1
982     shift
983     disable_safe $header
984     {
985        echo "#include <$header>"
986        echo "int main(void) { return 0; }"
987     } | check_oc && check_stat "$TMPO" && enable_safe $headers
988 }
989
990 check_func(){
991     log check_func "$@"
992     func=$1
993     shift
994     disable $func
995     check_ld "cc" "$@" <<EOF && enable $func
996 extern int $func();
997 int main(void){ $func(); }
998 EOF
999 }
1000
1001 check_mathfunc(){
1002     log check_mathfunc "$@"
1003     func=$1
1004     narg=$2
1005     shift 2
1006     test $narg = 2 && args="f, g" || args="f"
1007     disable $func
1008     check_ld "cc" "$@" <<EOF && enable $func
1009 #include <math.h>
1010 float foo(float f, float g) { return $func($args); }
1011 int main(void){ return (int) foo; }
1012 EOF
1013 }
1014
1015 check_func_headers(){
1016     log check_func_headers "$@"
1017     headers=$1
1018     funcs=$2
1019     shift 2
1020     {
1021         for hdr in $headers; do
1022             print_include $hdr
1023         done
1024         for func in $funcs; do
1025             echo "long check_$func(void) { return (long) $func; }"
1026         done
1027         echo "int main(void) { return 0; }"
1028     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1029 }
1030
1031 check_class_headers_cpp(){
1032     log check_class_headers_cpp "$@"
1033     headers=$1
1034     classes=$2
1035     shift 2
1036     {
1037         for hdr in $headers; do
1038             echo "#include <$hdr>"
1039         done
1040         echo "int main(void) { "
1041         i=1
1042         for class in $classes; do
1043             echo "$class obj$i;"
1044             i=$(expr $i + 1)
1045         done
1046         echo "return 0; }"
1047     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1048 }
1049
1050 check_cpp_condition(){
1051     log check_cpp_condition "$@"
1052     header=$1
1053     condition=$2
1054     shift 2
1055     check_cpp "$@" <<EOF
1056 #include <$header>
1057 #if !($condition)
1058 #error "unsatisfied condition: $condition"
1059 #endif
1060 EOF
1061 }
1062
1063 check_lib(){
1064     log check_lib "$@"
1065     header="$1"
1066     func="$2"
1067     shift 2
1068     check_header $header && check_func $func "$@" && add_extralibs "$@"
1069 }
1070
1071 check_lib2(){
1072     log check_lib2 "$@"
1073     headers="$1"
1074     funcs="$2"
1075     shift 2
1076     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1077 }
1078
1079 check_lib_cpp(){
1080     log check_lib_cpp "$@"
1081     headers="$1"
1082     classes="$2"
1083     shift 2
1084     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1085 }
1086
1087 check_pkg_config(){
1088     log check_pkg_config "$@"
1089     pkgandversion="$1"
1090     pkg="${1%% *}"
1091     headers="$2"
1092     funcs="$3"
1093     shift 3
1094     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1095     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1096     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1097     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1098         set_safe ${pkg}_cflags $pkg_cflags   &&
1099         set_safe ${pkg}_libs   $pkg_libs
1100 }
1101
1102 check_exec(){
1103     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1104 }
1105
1106 check_exec_crash(){
1107     code=$(cat)
1108
1109     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1110     # are safe but may not be available everywhere.  Thus we use
1111     # raise(SIGTERM) instead.  The check is run in a subshell so we
1112     # can redirect the "Terminated" message from the shell.  SIGBUS
1113     # is not defined by standard C so it is used conditionally.
1114
1115     (check_exec "$@") >> $logfile 2>&1 <<EOF
1116 #include <signal.h>
1117 static void sighandler(int sig){
1118     raise(SIGTERM);
1119 }
1120 int foo(void){
1121     $code
1122 }
1123 int (*func_ptr)(void) = foo;
1124 int main(void){
1125     signal(SIGILL, sighandler);
1126     signal(SIGFPE, sighandler);
1127     signal(SIGSEGV, sighandler);
1128 #ifdef SIGBUS
1129     signal(SIGBUS, sighandler);
1130 #endif
1131     return func_ptr();
1132 }
1133 EOF
1134 }
1135
1136 check_type(){
1137     log check_type "$@"
1138     headers=$1
1139     type=$2
1140     shift 2
1141     disable_safe "$type"
1142     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1143 }
1144
1145 check_struct(){
1146     log check_struct "$@"
1147     headers=$1
1148     struct=$2
1149     member=$3
1150     shift 3
1151     disable_safe "${struct}_${member}"
1152     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1153         enable_safe "${struct}_${member}"
1154 }
1155
1156 check_builtin(){
1157     log check_builtin "$@"
1158     name=$1
1159     headers=$2
1160     builtin=$3
1161     shift 3
1162     disable "$name"
1163     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1164 }
1165
1166 check_compile_assert(){
1167     log check_compile_assert "$@"
1168     name=$1
1169     headers=$2
1170     condition=$3
1171     shift 3
1172     disable "$name"
1173     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1174 }
1175
1176 require(){
1177     name="$1"
1178     header="$2"
1179     func="$3"
1180     shift 3
1181     check_lib $header $func "$@" || die "ERROR: $name not found"
1182 }
1183
1184 require2(){
1185     name="$1"
1186     headers="$2"
1187     func="$3"
1188     shift 3
1189     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1190 }
1191
1192 require_cpp(){
1193     name="$1"
1194     headers="$2"
1195     classes="$3"
1196     shift 3
1197     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1198 }
1199
1200 require_pkg_config(){
1201     pkg="$1"
1202     check_pkg_config "$@" || die "ERROR: $pkg not found"
1203     add_cflags    $(get_safe ${pkg}_cflags)
1204     add_extralibs $(get_safe ${pkg}_libs)
1205 }
1206
1207 require_libfreetype(){
1208     log require_libfreetype "$@"
1209     pkg="freetype2"
1210     check_cmd $pkg_config --exists --print-errors $pkg \
1211       || die "ERROR: $pkg not found"
1212     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1213     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1214     {
1215         echo "#include <ft2build.h>"
1216         echo "#include FT_FREETYPE_H"
1217         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1218         echo "int main(void) { return 0; }"
1219     } | check_ld "cc" $pkg_cflags $pkg_libs \
1220       && set_safe ${pkg}_cflags $pkg_cflags \
1221       && set_safe ${pkg}_libs   $pkg_libs \
1222       || die "ERROR: $pkg not found"
1223     add_cflags    $(get_safe ${pkg}_cflags)
1224     add_extralibs $(get_safe ${pkg}_libs)
1225 }
1226
1227 hostcc_e(){
1228     eval printf '%s\\n' $HOSTCC_E
1229 }
1230
1231 hostcc_o(){
1232     eval printf '%s\\n' $HOSTCC_O
1233 }
1234
1235 check_host_cc(){
1236     log check_host_cc "$@"
1237     cat > $TMPC
1238     log_file $TMPC
1239     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1240 }
1241
1242 check_host_cpp(){
1243     log check_host_cpp "$@"
1244     cat > $TMPC
1245     log_file $TMPC
1246     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1247 }
1248
1249 check_host_cppflags(){
1250     log check_host_cppflags "$@"
1251     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1252 int x;
1253 EOF
1254 }
1255
1256 check_host_cflags(){
1257     log check_host_cflags "$@"
1258     set -- $($host_cflags_filter "$@")
1259     check_host_cc "$@" <<EOF && append host_cflags "$@"
1260 int x;
1261 EOF
1262 }
1263
1264 check_host_cpp_condition(){
1265     log check_host_cpp_condition "$@"
1266     header=$1
1267     condition=$2
1268     shift 2
1269     check_host_cpp "$@" <<EOF
1270 #include <$header>
1271 #if !($condition)
1272 #error "unsatisfied condition: $condition"
1273 #endif
1274 EOF
1275 }
1276
1277 apply(){
1278     file=$1
1279     shift
1280     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1281 }
1282
1283 cp_if_changed(){
1284     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1285     mkdir -p "$(dirname $2)"
1286     $cp_f "$1" "$2"
1287 }
1288
1289 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1290 # system-dependent things.
1291
1292 COMPONENT_LIST="
1293     bsfs
1294     decoders
1295     demuxers
1296     encoders
1297     filters
1298     hwaccels
1299     indevs
1300     muxers
1301     outdevs
1302     parsers
1303     protocols
1304 "
1305
1306 EXAMPLE_LIST="
1307     avio_reading_example
1308     decoding_encoding_example
1309     demuxing_decoding_example
1310     extract_mvs_example
1311     filter_audio_example
1312     filtering_audio_example
1313     filtering_video_example
1314     metadata_example
1315     muxing_example
1316     remuxing_example
1317     resampling_audio_example
1318     scaling_video_example
1319     transcode_aac_example
1320     transcoding_example
1321 "
1322
1323 EXTERNAL_LIBRARY_LIST="
1324     avisynth
1325     bzlib
1326     crystalhd
1327     decklink
1328     frei0r
1329     gnutls
1330     iconv
1331     ladspa
1332     libaacplus
1333     libass
1334     libbluray
1335     libbs2b
1336     libcaca
1337     libcdio
1338     libcelt
1339     libdc1394
1340     libfaac
1341     libfdk_aac
1342     libflite
1343     libfontconfig
1344     libfreetype
1345     libfribidi
1346     libgme
1347     libgsm
1348     libiec61883
1349     libilbc
1350     libmodplug
1351     libmp3lame
1352     libnut
1353     libopencore_amrnb
1354     libopencore_amrwb
1355     libopencv
1356     libopenjpeg
1357     libopus
1358     libpulse
1359     libquvi
1360     librtmp
1361     libschroedinger
1362     libshine
1363     libsmbclient
1364     libsoxr
1365     libspeex
1366     libssh
1367     libstagefright_h264
1368     libtheora
1369     libtwolame
1370     libutvideo
1371     libv4l2
1372     libvidstab
1373     libvo_aacenc
1374     libvo_amrwbenc
1375     libvorbis
1376     libvpx
1377     libwavpack
1378     libwebp
1379     libx264
1380     libx265
1381     libxavs
1382     libxvid
1383     libzmq
1384     libzvbi
1385     lzma
1386     openal
1387     opencl
1388     opengl
1389     openssl
1390     x11grab
1391     xlib
1392     zlib
1393 "
1394
1395 DOCUMENT_LIST="
1396     doc
1397     htmlpages
1398     manpages
1399     podpages
1400     txtpages
1401 "
1402
1403 FEATURE_LIST="
1404     ftrapv
1405     gray
1406     hardcoded_tables
1407     runtime_cpudetect
1408     safe_bitstream_reader
1409     shared
1410     small
1411     static
1412     swscale_alpha
1413 "
1414
1415 HWACCEL_LIST="
1416     dxva2
1417     vaapi
1418     vda
1419     vdpau
1420     xvmc
1421 "
1422
1423 LIBRARY_LIST="
1424     avcodec
1425     avdevice
1426     avfilter
1427     avformat
1428     avresample
1429     avutil
1430     postproc
1431     swresample
1432     swscale
1433 "
1434
1435 LICENSE_LIST="
1436     gpl
1437     nonfree
1438     version3
1439 "
1440
1441 PROGRAM_LIST="
1442     ffplay
1443     ffprobe
1444     ffserver
1445     ffmpeg
1446 "
1447
1448 SUBSYSTEM_LIST="
1449     dct
1450     dwt
1451     error_resilience
1452     fast_unaligned
1453     fft
1454     lsp
1455     lzo
1456     mdct
1457     pixelutils
1458     network
1459     rdft
1460 "
1461
1462 CONFIG_LIST="
1463     $COMPONENT_LIST
1464     $DOCUMENT_LIST
1465     $EXAMPLE_LIST
1466     $EXTERNAL_LIBRARY_LIST
1467     $FEATURE_LIST
1468     $HWACCEL_LIST
1469     $LICENSE_LIST
1470     $LIBRARY_LIST
1471     $PROGRAM_LIST
1472     $SUBSYSTEM_LIST
1473     fontconfig
1474     incompatible_libav_abi
1475     memalign_hack
1476     memory_poisoning
1477     neon_clobber_test
1478     pic
1479     pod2man
1480     raise_major
1481     thumb
1482     xmm_clobber_test
1483 "
1484
1485 THREADS_LIST="
1486     pthreads
1487     os2threads
1488     w32threads
1489 "
1490
1491 ATOMICS_LIST="
1492     atomics_gcc
1493     atomics_suncc
1494     atomics_win32
1495 "
1496
1497 ARCH_LIST="
1498     aarch64
1499     alpha
1500     arm
1501     avr32
1502     avr32_ap
1503     avr32_uc
1504     bfin
1505     ia64
1506     m68k
1507     mips
1508     mips64
1509     parisc
1510     ppc
1511     ppc64
1512     s390
1513     sh4
1514     sparc
1515     sparc64
1516     tilegx
1517     tilepro
1518     tomi
1519     x86
1520     x86_32
1521     x86_64
1522 "
1523
1524 ARCH_EXT_LIST_ARM="
1525     armv5te
1526     armv6
1527     armv6t2
1528     armv8
1529     neon
1530     vfp
1531     vfpv3
1532     setend
1533 "
1534
1535 ARCH_EXT_LIST_MIPS="
1536     mipsfpu
1537     mips32r2
1538     mipsdspr1
1539     mipsdspr2
1540 "
1541
1542 ARCH_EXT_LIST_X86_SIMD="
1543     amd3dnow
1544     amd3dnowext
1545     avx
1546     avx2
1547     fma3
1548     fma4
1549     mmx
1550     mmxext
1551     sse
1552     sse2
1553     sse3
1554     sse4
1555     sse42
1556     ssse3
1557     xop
1558 "
1559
1560 ARCH_EXT_LIST_PPC="
1561     altivec
1562     dcbzl
1563     ldbrx
1564     ppc4xx
1565     vsx
1566 "
1567
1568 ARCH_EXT_LIST_X86="
1569     $ARCH_EXT_LIST_X86_SIMD
1570     cpunop
1571     i686
1572 "
1573
1574 ARCH_EXT_LIST="
1575     $ARCH_EXT_LIST_ARM
1576     $ARCH_EXT_LIST_PPC
1577     $ARCH_EXT_LIST_X86
1578     $ARCH_EXT_LIST_MIPS
1579     loongson
1580 "
1581
1582 ARCH_FEATURES="
1583     aligned_stack
1584     fast_64bit
1585     fast_clz
1586     fast_cmov
1587     local_aligned_8
1588     local_aligned_16
1589     local_aligned_32
1590     simd_align_16
1591 "
1592
1593 BUILTIN_LIST="
1594     atomic_cas_ptr
1595     machine_rw_barrier
1596     MemoryBarrier
1597     mm_empty
1598     rdtsc
1599     sarestart
1600     sync_val_compare_and_swap
1601 "
1602 HAVE_LIST_CMDLINE="
1603     inline_asm
1604     symver
1605     yasm
1606 "
1607
1608 HAVE_LIST_PUB="
1609     bigendian
1610     fast_unaligned
1611     incompatible_libav_abi
1612 "
1613
1614 HEADERS_LIST="
1615     alsa_asoundlib_h
1616     altivec_h
1617     arpa_inet_h
1618     asm_types_h
1619     cdio_paranoia_h
1620     cdio_paranoia_paranoia_h
1621     CL_cl_h
1622     dev_bktr_ioctl_bt848_h
1623     dev_bktr_ioctl_meteor_h
1624     dev_ic_bt8xx_h
1625     dev_video_bktr_ioctl_bt848_h
1626     dev_video_meteor_ioctl_meteor_h
1627     direct_h
1628     dlfcn_h
1629     dxva_h
1630     ES2_gl_h
1631     gsm_h
1632     io_h
1633     mach_mach_time_h
1634     machine_ioctl_bt848_h
1635     machine_ioctl_meteor_h
1636     malloc_h
1637     openjpeg_1_5_openjpeg_h
1638     OpenGL_gl3_h
1639     poll_h
1640     sndio_h
1641     soundcard_h
1642     sys_mman_h
1643     sys_param_h
1644     sys_resource_h
1645     sys_select_h
1646     sys_soundcard_h
1647     sys_time_h
1648     sys_un_h
1649     sys_videoio_h
1650     termios_h
1651     unistd_h
1652     windows_h
1653     winsock2_h
1654 "
1655
1656 INTRINSICS_LIST="
1657     intrinsics_neon
1658 "
1659
1660 MATH_FUNCS="
1661     atanf
1662     atan2f
1663     cbrt
1664     cbrtf
1665     cosf
1666     exp2
1667     exp2f
1668     expf
1669     fminf
1670     isinf
1671     isnan
1672     ldexpf
1673     llrint
1674     llrintf
1675     log2
1676     log2f
1677     log10f
1678     lrint
1679     lrintf
1680     powf
1681     rint
1682     round
1683     roundf
1684     sinf
1685     trunc
1686     truncf
1687 "
1688
1689 SYSTEM_FUNCS="
1690     access
1691     aligned_malloc
1692     clock_gettime
1693     closesocket
1694     CommandLineToArgvW
1695     CoTaskMemFree
1696     CryptGenRandom
1697     dlopen
1698     fcntl
1699     flt_lim
1700     fork
1701     getaddrinfo
1702     gethrtime
1703     getopt
1704     GetProcessAffinityMask
1705     GetProcessMemoryInfo
1706     GetProcessTimes
1707     getrusage
1708     getservbyport
1709     GetSystemTimeAsFileTime
1710     gettimeofday
1711     glob
1712     glXGetProcAddress
1713     inet_aton
1714     isatty
1715     jack_port_get_latency_range
1716     kbhit
1717     localtime_r
1718     lzo1x_999_compress
1719     mach_absolute_time
1720     MapViewOfFile
1721     memalign
1722     mkstemp
1723     mmap
1724     mprotect
1725     nanosleep
1726     PeekNamedPipe
1727     posix_memalign
1728     pthread_cancel
1729     sched_getaffinity
1730     SetConsoleTextAttribute
1731     setmode
1732     setrlimit
1733     Sleep
1734     strerror_r
1735     sysconf
1736     sysctl
1737     usleep
1738     VirtualAlloc
1739     wglGetProcAddress
1740 "
1741
1742 TOOLCHAIN_FEATURES="
1743     as_dn_directive
1744     as_func
1745     asm_mod_q
1746     attribute_may_alias
1747     attribute_packed
1748     ebp_available
1749     ebx_available
1750     gnu_as
1751     gnu_windres
1752     ibm_asm
1753     inline_asm_labels
1754     inline_asm_nonlocal_labels
1755     inline_asm_direct_symbol_refs
1756     pragma_deprecated
1757     rsync_contimeout
1758     symver_asm_label
1759     symver_gnu_asm
1760     vfp_args
1761     xform_asm
1762     xmm_clobbers
1763 "
1764
1765 TYPES_LIST="
1766     socklen_t
1767     struct_addrinfo
1768     struct_group_source_req
1769     struct_ip_mreq_source
1770     struct_ipv6_mreq
1771     struct_pollfd
1772     struct_rusage_ru_maxrss
1773     struct_sctp_event_subscribe
1774     struct_sockaddr_in6
1775     struct_sockaddr_sa_len
1776     struct_sockaddr_storage
1777     struct_stat_st_mtim_tv_nsec
1778     struct_v4l2_frmivalenum_discrete
1779 "
1780
1781 HAVE_LIST="
1782     $ARCH_EXT_LIST
1783     $(add_suffix _external $ARCH_EXT_LIST)
1784     $(add_suffix _inline   $ARCH_EXT_LIST)
1785     $ARCH_FEATURES
1786     $ATOMICS_LIST
1787     $BUILTIN_LIST
1788     $HAVE_LIST_CMDLINE
1789     $HAVE_LIST_PUB
1790     $HEADERS_LIST
1791     $INTRINSICS_LIST
1792     $MATH_FUNCS
1793     $SYSTEM_FUNCS
1794     $THREADS_LIST
1795     $TOOLCHAIN_FEATURES
1796     $TYPES_LIST
1797     atomics_native
1798     dos_paths
1799     dxva2api_cobj
1800     dxva2_lib
1801     libc_msvcrt
1802     libdc1394_1
1803     libdc1394_2
1804     makeinfo
1805     perl
1806     pod2man
1807     sdl
1808     texi2html
1809     threads
1810     vdpau_x11
1811     xlib
1812 "
1813
1814 # options emitted with CONFIG_ prefix but not available on the command line
1815 CONFIG_EXTRA="
1816     aandcttables
1817     ac3dsp
1818     audio_frame_queue
1819     audiodsp
1820     blockdsp
1821     bswapdsp
1822     cabac
1823     dvprofile
1824     exif
1825     fdctdsp
1826     frame_thread_encoder
1827     gcrypt
1828     golomb
1829     gplv3
1830     h263dsp
1831     h264chroma
1832     h264dsp
1833     h264pred
1834     h264qpel
1835     hpeldsp
1836     huffman
1837     huffyuvdsp
1838     huffyuvencdsp
1839     idctdsp
1840     iirfilter
1841     intrax8
1842     lgplv3
1843     llauddsp
1844     llviddsp
1845     lpc
1846     me_cmp
1847     mpeg_er
1848     mpegaudio
1849     mpegaudiodsp
1850     mpegvideo
1851     mpegvideoenc
1852     nettle
1853     pixblockdsp
1854     qpeldsp
1855     rangecoder
1856     riffdec
1857     riffenc
1858     rtpdec
1859     rtpenc_chain
1860     sinewin
1861     startcode
1862     tpeldsp
1863     videodsp
1864     vp3dsp
1865 "
1866
1867 CMDLINE_SELECT="
1868     $ARCH_EXT_LIST
1869     $CONFIG_LIST
1870     $HAVE_LIST_CMDLINE
1871     $THREADS_LIST
1872     asm
1873     cross_compile
1874     debug
1875     extra_warnings
1876     logging
1877     lto
1878     optimizations
1879     rpath
1880     stripping
1881 "
1882
1883 PATHS_LIST="
1884     bindir
1885     datadir
1886     docdir
1887     incdir
1888     libdir
1889     mandir
1890     prefix
1891     shlibdir
1892 "
1893
1894 CMDLINE_SET="
1895     $PATHS_LIST
1896     ar
1897     arch
1898     as
1899     assert_level
1900     build_suffix
1901     cc
1902     cpu
1903     cross_prefix
1904     cxx
1905     dep_cc
1906     doxygen
1907     extra_version
1908     gas
1909     host_cc
1910     host_cflags
1911     host_ld
1912     host_ldflags
1913     host_libs
1914     host_os
1915     install
1916     ld
1917     logfile
1918     malloc_prefix
1919     nm
1920     optflags
1921     pkg_config
1922     pkg_config_flags
1923     progs_suffix
1924     random_seed
1925     ranlib
1926     samples
1927     strip
1928     sws_max_filter_size
1929     sysinclude
1930     sysroot
1931     target_exec
1932     target_os
1933     target_path
1934     target_samples
1935     tempprefix
1936     toolchain
1937     valgrind
1938     yasmexe
1939 "
1940
1941 CMDLINE_APPEND="
1942     extra_cflags
1943     extra_cxxflags
1944     host_cppflags
1945 "
1946
1947 # code dependency declarations
1948
1949 # architecture extensions
1950
1951 armv5te_deps="arm"
1952 armv6_deps="arm"
1953 armv6t2_deps="arm"
1954 armv8_deps="aarch64"
1955 neon_deps_any="aarch64 arm"
1956 intrinsics_neon_deps="neon"
1957 vfp_deps_any="aarch64 arm"
1958 vfpv3_deps="vfp"
1959 setend_deps="arm"
1960
1961 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1962
1963 mipsfpu_deps="mips"
1964 mips32r2_deps="mips"
1965 mipsdspr1_deps="mips"
1966 mipsdspr2_deps="mips"
1967
1968 altivec_deps="ppc"
1969 ppc4xx_deps="ppc"
1970 vsx_deps="ppc"
1971
1972 cpunop_deps="i686"
1973 x86_64_select="i686"
1974 x86_64_suggest="fast_cmov"
1975
1976 amd3dnow_deps="mmx"
1977 amd3dnowext_deps="amd3dnow"
1978 i686_deps="x86"
1979 mmx_deps="x86"
1980 mmxext_deps="mmx"
1981 sse_deps="mmxext"
1982 sse2_deps="sse"
1983 sse3_deps="sse2"
1984 ssse3_deps="sse3"
1985 sse4_deps="ssse3"
1986 sse42_deps="sse4"
1987 avx_deps="sse42"
1988 xop_deps="avx"
1989 fma3_deps="avx"
1990 fma4_deps="avx"
1991 avx2_deps="avx"
1992
1993 mmx_external_deps="yasm"
1994 mmx_inline_deps="inline_asm"
1995 mmx_suggest="mmx_external mmx_inline"
1996
1997 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1998     eval dep=\$${ext}_deps
1999     eval ${ext}_external_deps='"${dep}_external"'
2000     eval ${ext}_inline_deps='"${dep}_inline"'
2001     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2002 done
2003
2004 aligned_stack_if_any="aarch64 ppc x86"
2005 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2006 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2007 fast_unaligned_if_any="aarch64 ppc x86"
2008 simd_align_16_if_any="altivec neon sse"
2009
2010 # system capabilities
2011
2012 symver_if_any="symver_asm_label symver_gnu_asm"
2013
2014 # threading support
2015 atomics_gcc_if="sync_val_compare_and_swap"
2016 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2017 atomics_win32_if="MemoryBarrier"
2018 atomics_native_if_any="$ATOMICS_LIST"
2019 w32threads_deps="atomics_native"
2020 threads_if_any="$THREADS_LIST"
2021
2022 # subsystems
2023 dct_select="rdft"
2024 error_resilience_select="me_cmp"
2025 frame_thread_encoder_deps="encoders threads"
2026 intrax8_select="error_resilience"
2027 mdct_select="fft"
2028 rdft_select="fft"
2029 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2030 mpeg_er_select="error_resilience"
2031 mpegaudio_select="mpegaudiodsp"
2032 mpegaudiodsp_select="dct"
2033 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2034 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2035
2036 # decoders / encoders
2037 aac_decoder_select="mdct sinewin"
2038 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2039 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2040 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2041 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2042 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2043 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2044 aic_decoder_select="golomb idctdsp"
2045 alac_encoder_select="lpc"
2046 als_decoder_select="bswapdsp"
2047 amrnb_decoder_select="lsp"
2048 amrwb_decoder_select="lsp"
2049 amv_decoder_select="sp5x_decoder exif"
2050 amv_encoder_select="aandcttables mpegvideoenc"
2051 ape_decoder_select="bswapdsp llauddsp"
2052 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2053 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2054 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2055 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2056 atrac1_decoder_select="mdct sinewin"
2057 atrac3_decoder_select="mdct"
2058 atrac3p_decoder_select="mdct sinewin"
2059 avrn_decoder_select="exif"
2060 bink_decoder_select="blockdsp hpeldsp"
2061 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
2062 binkaudio_rdft_decoder_select="mdct rdft sinewin"
2063 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2064 cllc_decoder_select="bswapdsp"
2065 comfortnoise_encoder_select="lpc"
2066 cook_decoder_select="audiodsp mdct sinewin"
2067 cscd_decoder_select="lzo"
2068 cscd_decoder_suggest="zlib"
2069 dca_decoder_select="mdct"
2070 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2071 dnxhd_decoder_select="blockdsp idctdsp"
2072 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2073 dvvideo_decoder_select="dvprofile idctdsp"
2074 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2075 dxa_decoder_select="zlib"
2076 eac3_decoder_select="ac3_decoder"
2077 eac3_encoder_select="ac3_encoder"
2078 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2079 eatgq_decoder_select="aandcttables"
2080 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2081 exr_decoder_select="zlib"
2082 ffv1_decoder_select="golomb rangecoder"
2083 ffv1_encoder_select="rangecoder"
2084 ffvhuff_decoder_select="huffyuv_decoder"
2085 ffvhuff_encoder_select="huffyuv_encoder"
2086 fic_decoder_select="golomb"
2087 flac_decoder_select="golomb"
2088 flac_encoder_select="bswapdsp golomb lpc"
2089 flashsv_decoder_select="zlib"
2090 flashsv_encoder_select="zlib"
2091 flashsv2_encoder_select="zlib"
2092 flashsv2_decoder_select="zlib"
2093 flv_decoder_select="h263_decoder"
2094 flv_encoder_select="h263_encoder"
2095 fourxm_decoder_select="blockdsp bswapdsp"
2096 fraps_decoder_select="bswapdsp huffman"
2097 g2m_decoder_select="blockdsp idctdsp zlib"
2098 g729_decoder_select="audiodsp"
2099 h261_decoder_select="mpeg_er mpegvideo"
2100 h261_encoder_select="aandcttables mpegvideoenc"
2101 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2102 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2103 h263i_decoder_select="h263_decoder"
2104 h263p_encoder_select="h263_encoder"
2105 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2106 h264_decoder_suggest="error_resilience"
2107 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2108 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2109 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2110 iac_decoder_select="imc_decoder"
2111 imc_decoder_select="bswapdsp fft mdct sinewin"
2112 indeo3_decoder_select="hpeldsp"
2113 interplay_video_decoder_select="hpeldsp"
2114 jpegls_decoder_select="golomb mjpeg_decoder"
2115 jpegls_encoder_select="golomb"
2116 jv_decoder_select="blockdsp"
2117 lagarith_decoder_select="huffyuvdsp"
2118 ljpeg_encoder_select="aandcttables idctdsp"
2119 loco_decoder_select="golomb"
2120 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2121 metasound_decoder_select="lsp mdct sinewin"
2122 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2123 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2124 mjpeg_encoder_select="aandcttables mpegvideoenc"
2125 mjpegb_decoder_select="mjpeg_decoder"
2126 mlp_decoder_select="mlp_parser"
2127 motionpixels_decoder_select="bswapdsp"
2128 mp1_decoder_select="mpegaudio"
2129 mp1float_decoder_select="mpegaudio"
2130 mp2_decoder_select="mpegaudio"
2131 mp2float_decoder_select="mpegaudio"
2132 mp3_decoder_select="mpegaudio"
2133 mp3adu_decoder_select="mpegaudio"
2134 mp3adufloat_decoder_select="mpegaudio"
2135 mp3float_decoder_select="mpegaudio"
2136 mp3on4_decoder_select="mpegaudio"
2137 mp3on4float_decoder_select="mpegaudio"
2138 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2139 mpc8_decoder_select="mpegaudiodsp"
2140 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2141 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2142 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2143 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2144 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2145 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2146 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2147 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2148 mpeg4_encoder_select="h263_encoder"
2149 msmpeg4v1_decoder_select="h263_decoder"
2150 msmpeg4v2_decoder_select="h263_decoder"
2151 msmpeg4v2_encoder_select="h263_encoder"
2152 msmpeg4v3_decoder_select="h263_decoder"
2153 msmpeg4v3_encoder_select="h263_encoder"
2154 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2155 mxpeg_decoder_select="mjpeg_decoder"
2156 nellymoser_decoder_select="mdct sinewin"
2157 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2158 nuv_decoder_select="idctdsp lzo"
2159 on2avc_decoder_select="mdct"
2160 opus_decoder_deps="swresample"
2161 png_decoder_select="zlib"
2162 png_encoder_select="huffyuvencdsp zlib"
2163 prores_decoder_select="blockdsp idctdsp"
2164 prores_encoder_select="fdctdsp"
2165 qcelp_decoder_select="lsp"
2166 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2167 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2168 ra_144_decoder_select="audiodsp"
2169 ralf_decoder_select="golomb"
2170 rawvideo_decoder_select="bswapdsp"
2171 rtjpeg_decoder_select="me_cmp"
2172 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2173 rv10_encoder_select="h263_encoder"
2174 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2175 rv20_encoder_select="h263_encoder"
2176 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2177 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2178 shorten_decoder_select="golomb"
2179 sipr_decoder_select="lsp"
2180 snow_decoder_select="dwt h264qpel hpeldsp rangecoder"
2181 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2182 sonic_decoder_select="golomb rangecoder"
2183 sonic_encoder_select="golomb rangecoder"
2184 sonic_ls_encoder_select="golomb rangecoder"
2185 sp5x_decoder_select="mjpeg_decoder"
2186 svq1_decoder_select="hpeldsp"
2187 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2188 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2189 svq3_decoder_suggest="zlib"
2190 tak_decoder_select="audiodsp"
2191 theora_decoder_select="vp3_decoder"
2192 thp_decoder_select="mjpeg_decoder"
2193 tiff_decoder_suggest="zlib lzma"
2194 tiff_encoder_suggest="zlib"
2195 truehd_decoder_select="mlp_parser"
2196 truemotion2_decoder_select="bswapdsp"
2197 truespeech_decoder_select="bswapdsp"
2198 tscc_decoder_select="zlib"
2199 twinvq_decoder_select="mdct lsp sinewin"
2200 utvideo_decoder_select="bswapdsp"
2201 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2202 vble_decoder_select="huffyuvdsp"
2203 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2204 vc1image_decoder_select="vc1_decoder"
2205 vorbis_decoder_select="mdct"
2206 vorbis_encoder_select="mdct"
2207 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2208 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2209 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2210 vp6a_decoder_select="vp6_decoder"
2211 vp6f_decoder_select="vp6_decoder"
2212 vp7_decoder_select="h264pred videodsp"
2213 vp8_decoder_select="h264pred videodsp"
2214 vp9_decoder_select="videodsp vp9_parser"
2215 webp_decoder_select="vp8_decoder"
2216 wmalossless_decoder_select="llauddsp"
2217 wmapro_decoder_select="mdct sinewin"
2218 wmav1_decoder_select="mdct sinewin"
2219 wmav1_encoder_select="mdct sinewin"
2220 wmav2_decoder_select="mdct sinewin"
2221 wmav2_encoder_select="mdct sinewin"
2222 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2223 wmv1_decoder_select="h263_decoder"
2224 wmv1_encoder_select="h263_encoder"
2225 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2226 wmv2_encoder_select="h263_encoder"
2227 wmv3_decoder_select="vc1_decoder"
2228 wmv3image_decoder_select="wmv3_decoder"
2229 zerocodec_decoder_select="zlib"
2230 zlib_decoder_select="zlib"
2231 zlib_encoder_select="zlib"
2232 zmbv_decoder_select="zlib"
2233 zmbv_encoder_select="zlib"
2234
2235 # hardware accelerators
2236 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2237 dxva2_deps="dxva2api_h"
2238 vaapi_deps="va_va_h"
2239 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2240 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2241 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2242 xvmc_deps="X11_extensions_XvMClib_h"
2243
2244 h263_vaapi_hwaccel_deps="vaapi"
2245 h263_vaapi_hwaccel_select="h263_decoder"
2246 h263_vdpau_hwaccel_deps="vdpau"
2247 h263_vdpau_hwaccel_select="h263_decoder"
2248 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2249 h264_dxva2_hwaccel_deps="dxva2"
2250 h264_dxva2_hwaccel_select="h264_decoder"
2251 h264_vaapi_hwaccel_deps="vaapi"
2252 h264_vaapi_hwaccel_select="h264_decoder"
2253 h264_vda_decoder_deps="vda"
2254 h264_vda_decoder_select="h264_decoder"
2255 h264_vda_hwaccel_deps="vda"
2256 h264_vda_hwaccel_select="h264_decoder"
2257 h264_vda_old_hwaccel_deps="vda"
2258 h264_vda_old_hwaccel_select="h264_decoder"
2259 h264_vdpau_decoder_deps="vdpau"
2260 h264_vdpau_decoder_select="h264_decoder"
2261 h264_vdpau_hwaccel_deps="vdpau"
2262 h264_vdpau_hwaccel_select="h264_decoder"
2263 mpeg_vdpau_decoder_deps="vdpau"
2264 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2265 mpeg_xvmc_hwaccel_deps="xvmc"
2266 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2267 mpeg1_vdpau_decoder_deps="vdpau"
2268 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2269 mpeg1_vdpau_hwaccel_deps="vdpau"
2270 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2271 mpeg1_xvmc_hwaccel_deps="xvmc"
2272 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2273 mpeg2_crystalhd_decoder_select="crystalhd"
2274 mpeg2_dxva2_hwaccel_deps="dxva2"
2275 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2276 mpeg2_vaapi_hwaccel_deps="vaapi"
2277 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2278 mpeg2_vdpau_hwaccel_deps="vdpau"
2279 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2280 mpeg2_xvmc_hwaccel_deps="xvmc"
2281 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2282 mpeg4_crystalhd_decoder_select="crystalhd"
2283 mpeg4_vaapi_hwaccel_deps="vaapi"
2284 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2285 mpeg4_vdpau_decoder_deps="vdpau"
2286 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2287 mpeg4_vdpau_hwaccel_deps="vdpau"
2288 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2289 msmpeg4_crystalhd_decoder_select="crystalhd"
2290 vc1_crystalhd_decoder_select="crystalhd"
2291 vc1_dxva2_hwaccel_deps="dxva2"
2292 vc1_dxva2_hwaccel_select="vc1_decoder"
2293 vc1_vaapi_hwaccel_deps="vaapi"
2294 vc1_vaapi_hwaccel_select="vc1_decoder"
2295 vc1_vdpau_decoder_deps="vdpau"
2296 vc1_vdpau_decoder_select="vc1_decoder"
2297 vc1_vdpau_hwaccel_deps="vdpau"
2298 vc1_vdpau_hwaccel_select="vc1_decoder"
2299 wmv3_crystalhd_decoder_select="crystalhd"
2300 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2301 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2302 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2303 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2304
2305 # parsers
2306 h264_parser_select="h264_decoder"
2307 hevc_parser_select="hevc_decoder"
2308 mpegvideo_parser_select="mpegvideo"
2309 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2310 vc1_parser_select="mpegvideo startcode vc1_decoder"
2311
2312 # external libraries
2313 libaacplus_encoder_deps="libaacplus"
2314 libcelt_decoder_deps="libcelt"
2315 libfaac_encoder_deps="libfaac"
2316 libfaac_encoder_select="audio_frame_queue"
2317 libfdk_aac_decoder_deps="libfdk_aac"
2318 libfdk_aac_encoder_deps="libfdk_aac"
2319 libfdk_aac_encoder_select="audio_frame_queue"
2320 libgme_demuxer_deps="libgme"
2321 libgsm_decoder_deps="libgsm"
2322 libgsm_encoder_deps="libgsm"
2323 libgsm_ms_decoder_deps="libgsm"
2324 libgsm_ms_encoder_deps="libgsm"
2325 libilbc_decoder_deps="libilbc"
2326 libilbc_encoder_deps="libilbc"
2327 libmodplug_demuxer_deps="libmodplug"
2328 libmp3lame_encoder_deps="libmp3lame"
2329 libmp3lame_encoder_select="audio_frame_queue"
2330 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2331 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2332 libopencore_amrnb_encoder_select="audio_frame_queue"
2333 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2334 libopenjpeg_decoder_deps="libopenjpeg"
2335 libopenjpeg_encoder_deps="libopenjpeg"
2336 libopus_decoder_deps="libopus"
2337 libopus_encoder_deps="libopus"
2338 libopus_encoder_select="audio_frame_queue"
2339 libquvi_demuxer_deps="libquvi"
2340 libschroedinger_decoder_deps="libschroedinger"
2341 libschroedinger_encoder_deps="libschroedinger"
2342 libshine_encoder_deps="libshine"
2343 libshine_encoder_select="audio_frame_queue"
2344 libspeex_decoder_deps="libspeex"
2345 libspeex_encoder_deps="libspeex"
2346 libspeex_encoder_select="audio_frame_queue"
2347 libstagefright_h264_decoder_deps="libstagefright_h264"
2348 libtheora_encoder_deps="libtheora"
2349 libtwolame_encoder_deps="libtwolame"
2350 libvo_aacenc_encoder_deps="libvo_aacenc"
2351 libvo_aacenc_encoder_select="audio_frame_queue"
2352 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2353 libvorbis_decoder_deps="libvorbis"
2354 libvorbis_encoder_deps="libvorbis"
2355 libvorbis_encoder_select="audio_frame_queue"
2356 libvpx_vp8_decoder_deps="libvpx"
2357 libvpx_vp8_encoder_deps="libvpx"
2358 libvpx_vp9_decoder_deps="libvpx"
2359 libvpx_vp9_encoder_deps="libvpx"
2360 libwavpack_encoder_deps="libwavpack"
2361 libwebp_encoder_deps="libwebp"
2362 libx264_encoder_deps="libx264"
2363 libx264rgb_encoder_deps="libx264"
2364 libx265_encoder_deps="libx265"
2365 libxavs_encoder_deps="libxavs"
2366 libxvid_encoder_deps="libxvid"
2367 libutvideo_decoder_deps="libutvideo"
2368 libutvideo_encoder_deps="libutvideo"
2369 libzvbi_teletext_decoder_deps="libzvbi"
2370
2371 # demuxers / muxers
2372 ac3_demuxer_select="ac3_parser"
2373 asf_demuxer_select="riffdec"
2374 asf_muxer_select="riffenc"
2375 asf_stream_muxer_select="asf_muxer"
2376 avi_demuxer_select="riffdec exif"
2377 avi_muxer_select="riffenc"
2378 avisynth_demuxer_deps="avisynth"
2379 avisynth_demuxer_select="riffdec"
2380 caf_demuxer_select="riffdec"
2381 dirac_demuxer_select="dirac_parser"
2382 dts_demuxer_select="dca_parser"
2383 dtshd_demuxer_select="dca_parser"
2384 dv_demuxer_select="dvprofile"
2385 dv_muxer_select="dvprofile"
2386 dxa_demuxer_select="riffdec"
2387 eac3_demuxer_select="ac3_parser"
2388 f4v_muxer_select="mov_muxer"
2389 flac_demuxer_select="flac_parser"
2390 hds_muxer_select="flv_muxer"
2391 hls_muxer_select="mpegts_muxer"
2392 image2_alias_pix_demuxer_select="image2_demuxer"
2393 image2_brender_pix_demuxer_select="image2_demuxer"
2394 ipod_muxer_select="mov_muxer"
2395 ismv_muxer_select="mov_muxer"
2396 libnut_demuxer_deps="libnut"
2397 libnut_muxer_deps="libnut"
2398 matroska_audio_muxer_select="matroska_muxer"
2399 matroska_demuxer_select="riffdec"
2400 matroska_demuxer_suggest="bzlib lzo zlib"
2401 matroska_muxer_select="riffenc"
2402 mmf_muxer_select="riffenc"
2403 mov_demuxer_select="riffdec"
2404 mov_demuxer_suggest="zlib"
2405 mov_muxer_select="riffenc rtpenc_chain"
2406 mp3_demuxer_select="mpegaudio_parser"
2407 mp4_muxer_select="mov_muxer"
2408 mpegts_muxer_select="adts_muxer latm_muxer"
2409 mpegtsraw_demuxer_select="mpegts_demuxer"
2410 mxf_d10_muxer_select="mxf_muxer"
2411 nut_muxer_select="riffenc"
2412 nuv_demuxer_select="riffdec"
2413 oga_muxer_select="ogg_muxer"
2414 ogg_demuxer_select="golomb"
2415 opus_muxer_select="ogg_muxer"
2416 psp_muxer_select="mov_muxer"
2417 rtp_demuxer_select="sdp_demuxer"
2418 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2419 rtsp_demuxer_select="http_protocol rtpdec"
2420 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2421 sap_demuxer_select="sdp_demuxer"
2422 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2423 sdp_demuxer_select="rtpdec"
2424 smoothstreaming_muxer_select="ismv_muxer"
2425 spdif_muxer_select="aac_parser"
2426 spx_muxer_select="ogg_muxer"
2427 tak_demuxer_select="tak_parser"
2428 tg2_muxer_select="mov_muxer"
2429 tgp_muxer_select="mov_muxer"
2430 vobsub_demuxer_select="mpegps_demuxer"
2431 w64_demuxer_select="wav_demuxer"
2432 w64_muxer_select="wav_muxer"
2433 wav_demuxer_select="riffdec"
2434 wav_muxer_select="riffenc"
2435 webm_muxer_select="riffenc"
2436 wtv_demuxer_select="riffdec"
2437 wtv_muxer_select="riffenc"
2438 xmv_demuxer_select="riffdec"
2439 xwma_demuxer_select="riffdec"
2440
2441 # indevs / outdevs
2442 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2443 alsa_outdev_deps="alsa_asoundlib_h"
2444 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2445 avfoundation_indev_select="avfoundation"
2446 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2447 caca_outdev_deps="libcaca"
2448 decklink_outdev_deps="decklink pthreads"
2449 decklink_outdev_extralibs="-lstdc++"
2450 dshow_indev_deps="IBaseFilter"
2451 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2452 dv1394_indev_deps="dv1394"
2453 dv1394_indev_select="dv_demuxer"
2454 fbdev_indev_deps="linux_fb_h"
2455 fbdev_outdev_deps="linux_fb_h"
2456 gdigrab_indev_deps="CreateDIBSection"
2457 gdigrab_indev_extralibs="-lgdi32"
2458 gdigrab_indev_select="bmp_decoder"
2459 iec61883_indev_deps="libiec61883"
2460 jack_indev_deps="jack_jack_h sem_timedwait"
2461 lavfi_indev_deps="avfilter"
2462 libcdio_indev_deps="libcdio"
2463 libdc1394_indev_deps="libdc1394"
2464 libv4l2_indev_deps="libv4l2"
2465 openal_indev_deps="openal"
2466 opengl_outdev_deps="opengl"
2467 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2468 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2469 pulse_indev_deps="libpulse"
2470 pulse_outdev_deps="libpulse"
2471 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2472 qtkit_indev_select="qtkit"
2473 sdl_outdev_deps="sdl"
2474 sndio_indev_deps="sndio_h"
2475 sndio_outdev_deps="sndio_h"
2476 v4l_indev_deps="linux_videodev_h"
2477 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2478 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2479 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2480 vfwcap_indev_extralibs="-lavicap32"
2481 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2482 xv_outdev_extralibs="-lXv -lX11 -lXext"
2483 x11grab_indev_deps="x11grab"
2484
2485 # protocols
2486 bluray_protocol_deps="libbluray"
2487 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2488 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2489 ffrtmpcrypt_protocol_select="tcp_protocol"
2490 ffrtmphttp_protocol_deps="!librtmp_protocol"
2491 ffrtmphttp_protocol_select="http_protocol"
2492 ftp_protocol_select="tcp_protocol"
2493 gopher_protocol_select="network"
2494 http_protocol_select="tcp_protocol"
2495 httpproxy_protocol_select="tcp_protocol"
2496 https_protocol_select="tls_protocol"
2497 icecast_protocol_select="http_protocol"
2498 librtmp_protocol_deps="librtmp"
2499 librtmpe_protocol_deps="librtmp"
2500 librtmps_protocol_deps="librtmp"
2501 librtmpt_protocol_deps="librtmp"
2502 librtmpte_protocol_deps="librtmp"
2503 libsmbclient_protocol_deps="libsmbclient gplv3"
2504 libssh_protocol_deps="libssh"
2505 mmsh_protocol_select="http_protocol"
2506 mmst_protocol_select="network"
2507 rtmp_protocol_deps="!librtmp_protocol"
2508 rtmp_protocol_select="tcp_protocol"
2509 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2510 rtmps_protocol_deps="!librtmp_protocol"
2511 rtmps_protocol_select="tls_protocol"
2512 rtmpt_protocol_select="ffrtmphttp_protocol"
2513 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2514 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2515 rtp_protocol_select="udp_protocol"
2516 sctp_protocol_deps="struct_sctp_event_subscribe"
2517 sctp_protocol_select="network"
2518 srtp_protocol_select="rtp_protocol"
2519 tcp_protocol_select="network"
2520 tls_protocol_deps_any="openssl gnutls"
2521 tls_protocol_select="tcp_protocol"
2522 udp_protocol_select="network"
2523 unix_protocol_deps="sys_un_h"
2524 unix_protocol_select="network"
2525
2526 # filters
2527 aconvert_filter_deps="swresample"
2528 amovie_filter_deps="avcodec avformat"
2529 aresample_filter_deps="swresample"
2530 ass_filter_deps="libass"
2531 asyncts_filter_deps="avresample"
2532 atempo_filter_deps="avcodec"
2533 atempo_filter_select="rdft"
2534 azmq_filter_deps="libzmq"
2535 blackframe_filter_deps="gpl"
2536 boxblur_filter_deps="gpl"
2537 bs2b_filter_deps="libbs2b"
2538 colormatrix_filter_deps="gpl"
2539 cropdetect_filter_deps="gpl"
2540 delogo_filter_deps="gpl"
2541 deshake_filter_select="pixelutils"
2542 drawtext_filter_deps="libfreetype"
2543 ebur128_filter_deps="gpl"
2544 flite_filter_deps="libflite"
2545 frei0r_filter_deps="frei0r dlopen"
2546 frei0r_filter_extralibs='$ldl'
2547 frei0r_src_filter_deps="frei0r dlopen"
2548 frei0r_src_filter_extralibs='$ldl'
2549 geq_filter_deps="gpl"
2550 histeq_filter_deps="gpl"
2551 hqdn3d_filter_deps="gpl"
2552 interlace_filter_deps="gpl"
2553 kerndeint_filter_deps="gpl"
2554 ladspa_filter_deps="ladspa dlopen"
2555 ladspa_filter_extralibs='$ldl'
2556 mcdeint_filter_deps="avcodec gpl"
2557 movie_filter_deps="avcodec avformat"
2558 mp_filter_deps="gpl avcodec swscale inline_asm"
2559 mpdecimate_filter_deps="gpl"
2560 mpdecimate_filter_select="pixelutils"
2561 mptestsrc_filter_deps="gpl"
2562 negate_filter_deps="lut_filter"
2563 perspective_filter_deps="gpl"
2564 ocv_filter_deps="libopencv"
2565 owdenoise_filter_deps="gpl"
2566 pan_filter_deps="swresample"
2567 phase_filter_deps="gpl"
2568 pp_filter_deps="gpl postproc"
2569 pullup_filter_deps="gpl"
2570 removelogo_filter_deps="avcodec avformat swscale"
2571 resample_filter_deps="avresample"
2572 sab_filter_deps="gpl swscale"
2573 scale_filter_deps="swscale"
2574 select_filter_select="pixelutils"
2575 smartblur_filter_deps="gpl swscale"
2576 showspectrum_filter_deps="avcodec"
2577 showspectrum_filter_select="rdft"
2578 spp_filter_deps="gpl avcodec"
2579 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2580 stereo3d_filter_deps="gpl"
2581 subtitles_filter_deps="avformat avcodec libass"
2582 super2xsai_filter_deps="gpl"
2583 tinterlace_filter_deps="gpl"
2584 vidstabdetect_filter_deps="libvidstab"
2585 vidstabtransform_filter_deps="libvidstab"
2586 pixfmts_super2xsai_test_deps="super2xsai_filter"
2587 tinterlace_merge_test_deps="tinterlace_filter"
2588 tinterlace_pad_test_deps="tinterlace_filter"
2589 zmq_filter_deps="libzmq"
2590 zoompan_filter_deps="swscale"
2591
2592 # examples
2593 avio_reading="avformat avcodec avutil"
2594 avcodec_example_deps="avcodec avutil"
2595 demuxing_decoding_example_deps="avcodec avformat avutil"
2596 extract_mvs_example_deps="avcodec avformat avutil"
2597 filter_audio_example_deps="avfilter avutil"
2598 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2599 filtering_video_example_deps="avfilter avcodec avformat avutil"
2600 metadata_example_deps="avformat avutil"
2601 muxing_example_deps="avcodec avformat avutil swscale"
2602 remuxing_example_deps="avcodec avformat avutil"
2603 resampling_audio_example_deps="avutil swresample"
2604 scaling_video_example_deps="avutil swscale"
2605 transcode_aac_example_deps="avcodec avformat swresample"
2606 transcoding_example_deps="avfilter avcodec avformat avutil"
2607
2608 # libraries, in linking order
2609 avcodec_deps="avutil"
2610 avdevice_deps="avformat avcodec avutil"
2611 avfilter_deps="avutil"
2612 avformat_deps="avcodec avutil"
2613 avresample_deps="avutil"
2614 postproc_deps="avutil gpl"
2615 swresample_deps="avutil"
2616 swscale_deps="avutil"
2617
2618 # programs
2619 ffmpeg_deps="avcodec avfilter avformat swresample"
2620 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2621                null_filter
2622                setpts_filter trim_filter"
2623 ffplay_deps="avcodec avformat swscale swresample sdl"
2624 ffplay_libs='$sdl_libs'
2625 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2626 ffprobe_deps="avcodec avformat"
2627 ffserver_deps="avformat fork sarestart"
2628 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2629
2630 # documentation
2631 podpages_deps="perl"
2632 manpages_deps="perl pod2man"
2633 htmlpages_deps="perl texi2html"
2634 txtpages_deps="perl makeinfo"
2635 doc_deps_any="manpages htmlpages podpages txtpages"
2636
2637 # default parameters
2638
2639 logfile="config.log"
2640
2641 # installation paths
2642 prefix_default="/usr/local"
2643 bindir_default='${prefix}/bin'
2644 datadir_default='${prefix}/share/ffmpeg'
2645 docdir_default='${prefix}/share/doc/ffmpeg'
2646 incdir_default='${prefix}/include'
2647 libdir_default='${prefix}/lib'
2648 mandir_default='${prefix}/share/man'
2649 shlibdir_default="$libdir_default"
2650
2651 # toolchain
2652 ar_default="ar"
2653 cc_default="gcc"
2654 cxx_default="g++"
2655 host_cc_default="gcc"
2656 cp_f="cp -f"
2657 doxygen_default="doxygen"
2658 install="install"
2659 ln_s="ln -s -f"
2660 nm_default="nm -g"
2661 objformat="elf"
2662 pkg_config_default=pkg-config
2663 ranlib_default="ranlib"
2664 strip_default="strip"
2665 yasmexe_default="yasm"
2666 windres_default="windres"
2667
2668 # OS
2669 target_os_default=$(tolower $(uname -s))
2670 host_os=$target_os_default
2671
2672 # machine
2673 if test "$target_os_default" = aix; then
2674     arch_default=$(uname -p)
2675     strip_default="strip -X32_64"
2676 else
2677     arch_default=$(uname -m)
2678 fi
2679 cpu="generic"
2680 intrinsics="none"
2681
2682 # configurable options
2683 enable $PROGRAM_LIST
2684 enable $DOCUMENT_LIST
2685 enable $EXAMPLE_LIST
2686 enable $(filter_out avresample $LIBRARY_LIST)
2687 enable stripping
2688
2689 enable asm
2690 enable debug
2691 enable doc
2692 enable optimizations
2693 enable runtime_cpudetect
2694 enable safe_bitstream_reader
2695 enable static
2696 enable swscale_alpha
2697
2698 sws_max_filter_size_default=256
2699 set_default sws_max_filter_size
2700
2701 # Enable hwaccels by default.
2702 enable dxva2 vaapi vda vdpau xvmc
2703 enable xlib
2704
2705 # build settings
2706 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2707 LIBPREF="lib"
2708 LIBSUF=".a"
2709 FULLNAME='$(NAME)$(BUILDSUF)'
2710 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2711 SLIBPREF="lib"
2712 SLIBSUF=".so"
2713 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2714 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2715 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2716 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2717 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2718 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2719
2720 asflags_filter=echo
2721 cflags_filter=echo
2722 ldflags_filter=echo
2723
2724 AS_C='-c'
2725 AS_O='-o $@'
2726 CC_C='-c'
2727 CC_E='-E -o $@'
2728 CC_O='-o $@'
2729 CXX_C='-c'
2730 CXX_O='-o $@'
2731 LD_O='-o $@'
2732 LD_LIB='-l%'
2733 LD_PATH='-L'
2734 HOSTCC_C='-c'
2735 HOSTCC_E='-E -o $@'
2736 HOSTCC_O='-o $@'
2737 HOSTLD_O='-o $@'
2738
2739 host_libs='-lm'
2740 host_cflags_filter=echo
2741 host_ldflags_filter=echo
2742
2743 target_path='$(CURDIR)'
2744
2745 # since the object filename is not given with the -MM flag, the compiler
2746 # is only able to print the basename, and we must add the path ourselves
2747 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2748 DEPFLAGS='-MM'
2749
2750 # find source path
2751 if test -f configure; then
2752     source_path=.
2753 else
2754     source_path=$(cd $(dirname "$0"); pwd)
2755     echo "$source_path" | grep -q '[[:blank:]]' &&
2756         die "Out of tree builds are impossible with whitespace in source path."
2757     test -e "$source_path/config.h" &&
2758         die "Out of tree builds are impossible with config.h in source dir."
2759 fi
2760
2761 for v in "$@"; do
2762     r=${v#*=}
2763     l=${v%"$r"}
2764     r=$(sh_quote "$r")
2765     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2766 done
2767
2768 find_things(){
2769     thing=$1
2770     pattern=$2
2771     file=$source_path/$3
2772     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2773 }
2774
2775 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2776 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2777 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2778 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2779 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2780 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2781 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2782 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2783 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2784 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2785 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2786
2787 ALL_COMPONENTS="
2788     $BSF_LIST
2789     $DECODER_LIST
2790     $DEMUXER_LIST
2791     $ENCODER_LIST
2792     $FILTER_LIST
2793     $HWACCEL_LIST
2794     $INDEV_LIST
2795     $MUXER_LIST
2796     $OUTDEV_LIST
2797     $PARSER_LIST
2798     $PROTOCOL_LIST
2799 "
2800
2801 for n in $COMPONENT_LIST; do
2802     v=$(toupper ${n%s})_LIST
2803     eval enable \$$v
2804     eval ${n}_if_any="\$$v"
2805 done
2806
2807 enable $ARCH_EXT_LIST
2808
2809 die_unknown(){
2810     echo "Unknown option \"$1\"."
2811     echo "See $0 --help for available options."
2812     exit 1
2813 }
2814
2815 print_3_columns() {
2816     cat | tr ' ' '\n' | sort | pr -r -3 -t
2817 }
2818
2819 show_list() {
2820     suffix=_$1
2821     shift
2822     echo $* | sed s/$suffix//g | print_3_columns
2823     exit 0
2824 }
2825
2826 rand_list(){
2827     IFS=', '
2828     set -- $*
2829     unset IFS
2830     for thing; do
2831         comp=${thing%:*}
2832         prob=${thing#$comp}
2833         prob=${prob#:}
2834         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2835         echo "prob ${prob:-0.5}"
2836         printf '%s\n' $comp
2837     done
2838 }
2839
2840 do_random(){
2841     action=$1
2842     shift
2843     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2844     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2845 }
2846
2847 for opt do
2848     optval="${opt#*=}"
2849     case "$opt" in
2850         --extra-ldflags=*)
2851             add_ldflags $optval
2852         ;;
2853         --extra-ldexeflags=*)
2854             add_ldexeflags $optval
2855         ;;
2856         --extra-libs=*)
2857             add_extralibs $optval
2858         ;;
2859         --disable-devices)
2860             disable $INDEV_LIST $OUTDEV_LIST
2861         ;;
2862         --enable-debug=*)
2863             debuglevel="$optval"
2864         ;;
2865         --disable-programs)
2866             disable $PROGRAM_LIST
2867         ;;
2868         --disable-everything)
2869             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2870         ;;
2871         --disable-all)
2872             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2873             disable $LIBRARY_LIST $PROGRAM_LIST doc
2874         ;;
2875         --enable-random|--disable-random)
2876             action=${opt%%-random}
2877             do_random ${action#--} $COMPONENT_LIST
2878         ;;
2879         --enable-random=*|--disable-random=*)
2880             action=${opt%%-random=*}
2881             do_random ${action#--} $optval
2882         ;;
2883         --enable-*=*|--disable-*=*)
2884             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2885             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2886             eval list=\$$(toupper $thing)_LIST
2887             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2888             list=$(filter "$name" $list)
2889             [ "$list" = "" ] && warn "Option $opt did not match anything"
2890             $action $list
2891         ;;
2892         --enable-?*|--disable-?*)
2893             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2894             if is_in $option $COMPONENT_LIST; then
2895                 test $action = disable && action=unset
2896                 eval $action \$$(toupper ${option%s})_LIST
2897             elif is_in $option $CMDLINE_SELECT; then
2898                 $action $option
2899             else
2900                 die_unknown $opt
2901             fi
2902         ;;
2903         --list-*)
2904             NAME="${opt#--list-}"
2905             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2906             NAME=${NAME%s}
2907             eval show_list $NAME \$$(toupper $NAME)_LIST
2908         ;;
2909         --help|-h) show_help
2910         ;;
2911         --fatal-warnings) enable fatal_warnings
2912         ;;
2913         *)
2914             optname="${opt%%=*}"
2915             optname="${optname#--}"
2916             optname=$(echo "$optname" | sed 's/-/_/g')
2917             if is_in $optname $CMDLINE_SET; then
2918                 eval $optname='$optval'
2919             elif is_in $optname $CMDLINE_APPEND; then
2920                 append $optname "$optval"
2921             else
2922                 die_unknown $opt
2923             fi
2924         ;;
2925     esac
2926 done
2927
2928 disabled logging && logfile=/dev/null
2929
2930 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2931 set >> $logfile
2932
2933 test -n "$cross_prefix" && enable cross_compile
2934
2935 if enabled cross_compile; then
2936     test -n "$arch" && test -n "$target_os" ||
2937         die "Must specify target arch and OS when cross-compiling"
2938 fi
2939
2940 ar_default="${cross_prefix}${ar_default}"
2941 cc_default="${cross_prefix}${cc_default}"
2942 cxx_default="${cross_prefix}${cxx_default}"
2943 nm_default="${cross_prefix}${nm_default}"
2944 pkg_config_default="${cross_prefix}${pkg_config_default}"
2945 ranlib_default="${cross_prefix}${ranlib_default}"
2946 strip_default="${cross_prefix}${strip_default}"
2947 windres_default="${cross_prefix}${windres_default}"
2948
2949 sysinclude_default="${sysroot}/usr/include"
2950
2951 test -n "$valgrind" && toolchain="valgrind-memcheck"
2952
2953 case "$toolchain" in
2954     clang-asan)
2955         cc_default="clang"
2956         add_cflags  -fsanitize=address
2957         add_ldflags -fsanitize=address
2958     ;;
2959     clang-tsan)
2960         cc_default="clang"
2961         add_cflags  -fsanitize=thread -pie
2962         add_ldflags -fsanitize=thread -pie
2963     ;;
2964     clang-usan)
2965         cc_default="clang"
2966         add_cflags  -fsanitize=undefined
2967         add_ldflags -fsanitize=undefined
2968     ;;
2969     gcc-asan)
2970         cc_default="gcc"
2971         add_cflags  -fsanitize=address
2972         add_ldflags -fsanitize=address
2973     ;;
2974     gcc-tsan)
2975         cc_default="gcc"
2976         add_cflags  -fsanitize=thread -pie -fPIC
2977         add_ldflags -fsanitize=thread -pie -fPIC
2978     ;;
2979     gcc-usan)
2980         cc_default="gcc"
2981         add_cflags  -fsanitize=undefined
2982         add_ldflags -fsanitize=undefined
2983     ;;
2984     valgrind-massif)
2985         target_exec_default=${valgrind:-"valgrind"}
2986         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
2987     ;;
2988     valgrind-memcheck)
2989         target_exec_default=${valgrind:-"valgrind"}
2990         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2991     ;;
2992     msvc)
2993         # Check whether the current MSVC version needs the C99 converter.
2994         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2995         # support enough of C99 to build ffmpeg. Default to the new
2996         # behaviour if the regexp was unable to match anything, since this
2997         # successfully parses the version number of existing supported
2998         # versions that require the converter (MSVC 2010 and 2012).
2999         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3000         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3001             cc_default="cl"
3002         else
3003             cc_default="c99wrap cl"
3004         fi
3005         ld_default="link"
3006         nm_default="dumpbin -symbols"
3007         ar_default="lib"
3008         target_os_default="win32"
3009         # Use a relative path for TMPDIR. This makes sure all the
3010         # ffconf temp files are written with a relative path, avoiding
3011         # issues with msys/win32 path conversion for MSVC parameters
3012         # such as -Fo<file> or -out:<file>.
3013         TMPDIR=.
3014     ;;
3015     icl)
3016         cc_default="icl"
3017         ld_default="xilink"
3018         nm_default="dumpbin -symbols"
3019         ar_default="xilib"
3020         target_os_default="win32"
3021         TMPDIR=.
3022     ;;
3023     gcov)
3024         add_cflags  -fprofile-arcs -ftest-coverage
3025         add_ldflags -fprofile-arcs -ftest-coverage
3026     ;;
3027     hardened)
3028         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
3029         add_ldflags -Wl,-z,relro -Wl,-z,now
3030     ;;
3031     ?*)
3032         die "Unknown toolchain $toolchain"
3033     ;;
3034 esac
3035
3036 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3037     target_exec target_os yasmexe
3038 enabled cross_compile || host_cc_default=$cc
3039 set_default host_cc
3040
3041 if ! $pkg_config --version >/dev/null 2>&1; then
3042     warn "$pkg_config not found, library detection may fail."
3043     pkg_config=false
3044 fi
3045
3046 if test $doxygen != $doxygen_default && \
3047   ! $doxygen --version >/dev/null 2>&1; then
3048     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3049 fi
3050
3051 exesuf() {
3052     case $1 in
3053         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3054     esac
3055 }
3056
3057 EXESUF=$(exesuf $target_os)
3058 HOSTEXESUF=$(exesuf $host_os)
3059
3060 # set temporary file name
3061 : ${TMPDIR:=$TEMPDIR}
3062 : ${TMPDIR:=$TMP}
3063 : ${TMPDIR:=/tmp}
3064
3065 if [ -n "$tempprefix" ] ; then
3066     mktemp(){
3067         echo $tempprefix.${HOSTNAME}.${UID}
3068     }
3069 elif ! check_cmd mktemp -u XXXXXX; then
3070     # simple replacement for missing mktemp
3071     # NOT SAFE FOR GENERAL USE
3072     mktemp(){
3073         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3074     }
3075 fi
3076
3077 tmpfile(){
3078     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3079         (set -C; exec > $tmp) 2>/dev/null ||
3080         die "Unable to create temporary file in $TMPDIR."
3081     append TMPFILES $tmp
3082     eval $1=$tmp
3083 }
3084
3085 trap 'rm -f -- $TMPFILES' EXIT
3086
3087 tmpfile TMPASM .asm
3088 tmpfile TMPC   .c
3089 tmpfile TMPCPP .cpp
3090 tmpfile TMPE   $EXESUF
3091 tmpfile TMPH   .h
3092 tmpfile TMPM   .m
3093 tmpfile TMPO   .o
3094 tmpfile TMPS   .S
3095 tmpfile TMPSH  .sh
3096 tmpfile TMPV   .ver
3097
3098 unset -f mktemp
3099
3100 chmod +x $TMPE
3101
3102 # make sure we can execute files in $TMPDIR
3103 cat > $TMPSH 2>> $logfile <<EOF
3104 #! /bin/sh
3105 EOF
3106 chmod +x $TMPSH >> $logfile 2>&1
3107 if ! $TMPSH >> $logfile 2>&1; then
3108     cat <<EOF
3109 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3110 variable to another directory and make sure that it is not mounted noexec.
3111 EOF
3112     die "Sanity test failed."
3113 fi
3114
3115 armasm_flags(){
3116     for flag; do
3117         case $flag in
3118             # Filter out MSVC cl.exe options from cflags that shouldn't
3119             # be passed to gas-preprocessor
3120             -M[TD]*)                                            ;;
3121             *)                  echo $flag                      ;;
3122         esac
3123    done
3124 }
3125
3126 ccc_flags(){
3127     for flag; do
3128         case $flag in
3129             -std=c99)           echo -c99                       ;;
3130             -mcpu=*)            echo -arch ${flag#*=}           ;;
3131             -mieee)             echo -ieee                      ;;
3132             -O*|-fast)          echo $flag                      ;;
3133             -fno-math-errno)    echo -assume nomath_errno       ;;
3134             -g)                 echo -g3                        ;;
3135             -Wall)              echo -msg_enable level2         ;;
3136             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3137             -Wl,*)              echo $flag                      ;;
3138             -f*|-W*)                                            ;;
3139             *)                  echo $flag                      ;;
3140         esac
3141    done
3142 }
3143
3144 cparser_flags(){
3145     for flag; do
3146         case $flag in
3147             -Wno-switch)             echo -Wno-switch-enum ;;
3148             -Wno-format-zero-length) ;;
3149             -Wdisabled-optimization) ;;
3150             -Wno-pointer-sign)       echo -Wno-other ;;
3151             *)                       echo $flag ;;
3152         esac
3153     done
3154 }
3155
3156 msvc_common_flags(){
3157     for flag; do
3158         case $flag in
3159             # In addition to specifying certain flags under the compiler
3160             # specific filters, they must be specified here as well or else the
3161             # generic catch all at the bottom will print the original flag.
3162             -Wall)                ;;
3163             -std=c99)             ;;
3164             # Common flags
3165             -fomit-frame-pointer) ;;
3166             -g)                   echo -Z7 ;;
3167             -fno-math-errno)      ;;
3168             -fno-common)          ;;
3169             -fno-signed-zeros)    ;;
3170             -fPIC)                ;;
3171             -mthumb)              ;;
3172             -march=*)             ;;
3173             -lz)                  echo zlib.lib ;;
3174             -lavifil32)           echo vfw32.lib ;;
3175             -lavicap32)           echo vfw32.lib user32.lib ;;
3176             -l*)                  echo ${flag#-l}.lib ;;
3177             *)                    echo $flag ;;
3178         esac
3179     done
3180 }
3181
3182 msvc_flags(){
3183     msvc_common_flags "$@"
3184     for flag; do
3185         case $flag in
3186             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3187                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3188                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3189                                        -wd4554 \
3190                                        -wd4273 -wd4701 ;;
3191         esac
3192     done
3193 }
3194
3195 icl_flags(){
3196     msvc_common_flags "$@"
3197     for flag; do
3198         case $flag in
3199             # Despite what Intel's documentation says -Wall, which is supported
3200             # on Windows, does enable remarks so disable them here.
3201             -Wall)                echo $flag -Qdiag-disable:remark ;;
3202             -std=c99)             echo -Qstd=c99 ;;
3203             -flto)                echo -ipo ;;
3204         esac
3205     done
3206 }
3207
3208 icc_flags(){
3209     for flag; do
3210         case $flag in
3211             -flto)                echo -ipo ;;
3212             *)                    echo $flag ;;
3213         esac
3214     done
3215 }
3216
3217 pgi_flags(){
3218     for flag; do
3219         case $flag in
3220             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3221             -fomit-frame-pointer) echo -Mnoframe ;;
3222             -g)                   echo -gopt ;;
3223             *)                    echo $flag ;;
3224         esac
3225     done
3226 }
3227
3228 suncc_flags(){
3229     for flag; do
3230         case $flag in
3231             -march=*|-mcpu=*)
3232                 case "${flag#*=}" in
3233                     native)                   echo -xtarget=native       ;;
3234                     v9|niagara)               echo -xarch=sparc          ;;
3235                     ultrasparc)               echo -xarch=sparcvis       ;;
3236                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3237                     i586|pentium)             echo -xchip=pentium        ;;
3238                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3239                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3240                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3241                     pentium4*)          echo -xtarget=pentium4           ;;
3242                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3243                     *-sse3)             echo -xarch=sse3                 ;;
3244                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3245                     bonnell)                   echo -xarch=ssse3         ;;
3246                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3247                     westmere)                  echo -xtarget=westmere    ;;
3248                     silvermont)                echo -xarch=sse4_2        ;;
3249                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3250                     core-avx*|ivybridge|haswell|broadwell)
3251                                                echo -xarch=avx           ;;
3252                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3253                     btver1)                    echo -xarch=amdsse4a      ;;
3254                     btver2|bdver*)             echo -xarch=avx           ;;
3255                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3256                     k8|opteron|athlon64|athlon-fx)
3257                                                echo -xarch=sse2a         ;;
3258                     athlon*)                   echo -xarch=pentium_proa  ;;
3259                 esac
3260                 ;;
3261             -std=c99)             echo -xc99              ;;
3262             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3263             -fPIC)                echo -KPIC -xcode=pic32 ;;
3264             -W*,*)                echo $flag              ;;
3265             -f*-*|-W*|-mimpure-text)                      ;;
3266             -shared)              echo -G                 ;;
3267             *)                    echo $flag              ;;
3268         esac
3269     done
3270 }
3271
3272 tms470_flags(){
3273     for flag; do
3274         case $flag in
3275             -march=*|-mcpu=*)
3276                 case "${flag#*=}" in
3277                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3278                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3279                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3280                     armv6*|arm11*)          echo -mv=6   ;;
3281                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3282                                             echo -mv=5e  ;;
3283                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3284                 esac
3285                 ;;
3286             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3287             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3288             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3289             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3290             -msoft-float)   echo --float_support=vfplib       ;;
3291             -O[0-3]|-mf=*)  echo $flag                        ;;
3292             -g)             echo -g -mn                       ;;
3293             -pds=*)         echo $flag                        ;;
3294             -D*|-I*)        echo $flag                        ;;
3295             --gcc|--abi=*)  echo $flag                        ;;
3296             -me)            echo $flag                        ;;
3297         esac
3298     done
3299 }
3300
3301 probe_cc(){
3302     pfx=$1
3303     _cc=$2
3304
3305     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3306     unset _ld_o _ldflags _ld_lib _ld_path
3307     unset _depflags _DEPCMD _DEPFLAGS
3308     _flags_filter=echo
3309
3310     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3311         true # no-op to avoid reading stdin in following checks
3312     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3313         _type=llvm_gcc
3314         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3315         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3316         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3317         _cflags_speed='-O3'
3318         _cflags_size='-Os'
3319     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3320         _type=gcc
3321         gcc_version=$($_cc --version | head -n1)
3322         gcc_basever=$($_cc -dumpversion)
3323         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3324         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3325         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3326         if ! $_cc -dumpversion | grep -q '^2\.'; then
3327             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3328         fi
3329         _cflags_speed='-O3'
3330         _cflags_size='-Os'
3331     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3332         _type=icc
3333         _ident=$($_cc --version | head -n1)
3334         _depflags='-MMD'
3335         _cflags_speed='-O3'
3336         _cflags_size='-Os'
3337         _cflags_noopt='-O1'
3338         _flags_filter=icc_flags
3339     elif $_cc -v 2>&1 | grep -q xlc; then
3340         _type=xlc
3341         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3342         _cflags_speed='-O5'
3343         _cflags_size='-O5 -qcompact'
3344     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3345         _type=ccc
3346         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3347         _DEPFLAGS='-M'
3348         _cflags_speed='-fast'
3349         _cflags_size='-O1'
3350         _flags_filter=ccc_flags
3351     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3352         test -d "$sysroot" || die "No valid sysroot specified."
3353         _type=armcc
3354         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3355         armcc_conf="$PWD/armcc.conf"
3356         $_cc --arm_linux_configure                 \
3357              --arm_linux_config_file="$armcc_conf" \
3358              --configure_sysroot="$sysroot"        \
3359              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3360              die "Error creating armcc configuration file."
3361         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3362         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3363         as_default="${cross_prefix}gcc"
3364         _depflags='-MMD'
3365         _cflags_speed='-O3'
3366         _cflags_size='-Os'
3367     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3368         _type=tms470
3369         _ident=$($_cc -version | head -n1 | tr -s ' ')
3370         _flags='--gcc --abi=eabi -me'
3371         _cc_e='-ppl -fe=$@'
3372         _cc_o='-fe=$@'
3373         _depflags='-ppa -ppd=$(@:.o=.d)'
3374         _cflags_speed='-O3 -mf=5'
3375         _cflags_size='-O3 -mf=2'
3376         _flags_filter=tms470_flags
3377     elif $_cc -v 2>&1 | grep -q clang; then
3378         _type=clang
3379         _ident=$($_cc --version | head -n1)
3380         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3381         _cflags_speed='-O3'
3382         _cflags_size='-Os'
3383     elif $_cc -V 2>&1 | grep -q Sun; then
3384         _type=suncc
3385         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3386         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3387         _DEPFLAGS='-xM1 -xc99'
3388         _ldflags='-std=c99'
3389         _cflags_speed='-O5'
3390         _cflags_size='-O5 -xspace'
3391         _flags_filter=suncc_flags
3392     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3393         _type=pathscale
3394         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3395         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3396         _cflags_speed='-O2'
3397         _cflags_size='-Os'
3398         _flags_filter='filter_out -Wdisabled-optimization'
3399     elif $_cc -v 2>&1 | grep -q Open64; then
3400         _type=open64
3401         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3402         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3403         _cflags_speed='-O2'
3404         _cflags_size='-Os'
3405         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3406     elif $_cc -V 2>&1 | grep -q Portland; then
3407         _type=pgi
3408         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3409         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3410         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3411         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3412         _cflags_noopt="-O"
3413         _flags_filter=pgi_flags
3414     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3415         _type=armasm
3416         _ident=$($_cc | head -n1)
3417         # 4509: "This form of conditional instruction is deprecated"
3418         _flags="-nologo -ignore 4509"
3419         _flags_filter=armasm_flags
3420     elif $_cc 2>&1 | grep -q Microsoft; then
3421         _type=msvc
3422         _ident=$($cc 2>&1 | head -n1)
3423         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3424         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3425         _cflags_speed="-O2"
3426         _cflags_size="-O1"
3427         if $_cc 2>&1 | grep -q Linker; then
3428             _ld_o='-out:$@'
3429         else
3430             _ld_o='-Fe$@'
3431         fi
3432         _cc_o='-Fo$@'
3433         _cc_e='-P -Fi$@'
3434         _flags_filter=msvc_flags
3435         _ld_lib='lib%.a'
3436         _ld_path='-libpath:'
3437         _flags='-nologo'
3438         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3439         if [ $pfx = hostcc ]; then
3440             append _cflags -Dsnprintf=_snprintf
3441         fi
3442         disable stripping
3443     elif $_cc 2>&1 | grep -q Intel; then
3444         _type=icl
3445         _ident=$($cc 2>&1 | head -n1)
3446         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3447         # Not only is O3 broken on 13.x+ but it is slower on all previous
3448         # versions (tested) as well.
3449         _cflags_speed="-O2"
3450         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3451         if $_cc 2>&1 | grep -q Linker; then
3452             _ld_o='-out:$@'
3453         else
3454             _ld_o='-Fe$@'
3455         fi
3456         _cc_o='-Fo$@'
3457         _cc_e='-P'
3458         _flags_filter=icl_flags
3459         _ld_lib='lib%.a'
3460         _ld_path='-libpath:'
3461         # -Qdiag-error to make icl error when seeing certain unknown arguments
3462         _flags='-nologo -Qdiag-error:4044,10157'
3463         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3464         # with MSVC which enables it by default.
3465         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3466         if [ $pfx = hostcc ]; then
3467             append _cflags -Dsnprintf=_snprintf
3468         fi
3469     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3470         _type=cparser
3471         _ident=$($_cc --version | head -n1)
3472         _depflags='-MMD'
3473         _cflags_speed='-O4'
3474         _cflags_size='-O2'
3475         _flags_filter=cparser_flags
3476     fi
3477
3478     eval ${pfx}_type=\$_type
3479     eval ${pfx}_ident=\$_ident
3480 }
3481
3482 set_ccvars(){
3483     eval ${1}_C=\${_cc_c-\${${1}_C}}
3484     eval ${1}_E=\${_cc_e-\${${1}_E}}
3485     eval ${1}_O=\${_cc_o-\${${1}_O}}
3486
3487     if [ -n "$_depflags" ]; then
3488         eval ${1}_DEPFLAGS=\$_depflags
3489     else
3490         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3491         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3492         eval DEP${1}FLAGS=\$_flags
3493     fi
3494 }
3495
3496 probe_cc cc "$cc"
3497 cflags_filter=$_flags_filter
3498 cflags_speed=$_cflags_speed
3499 cflags_size=$_cflags_size
3500 cflags_noopt=$_cflags_noopt
3501 add_cflags $_flags $_cflags
3502 cc_ldflags=$_ldflags
3503 set_ccvars CC
3504
3505 probe_cc hostcc "$host_cc"
3506 host_cflags_filter=$_flags_filter
3507 add_host_cflags  $_flags $_cflags
3508 set_ccvars HOSTCC
3509
3510 test -n "$cc_type" && enable $cc_type ||
3511     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3512
3513 : ${as_default:=$cc}
3514 : ${dep_cc_default:=$cc}
3515 : ${ld_default:=$cc}
3516 : ${host_ld_default:=$host_cc}
3517 set_default ar as dep_cc ld host_ld windres
3518
3519 probe_cc as "$as"
3520 asflags_filter=$_flags_filter
3521 add_asflags $_flags $_cflags
3522 set_ccvars AS
3523
3524 probe_cc ld "$ld"
3525 ldflags_filter=$_flags_filter
3526 add_ldflags $_flags $_ldflags
3527 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3528 LD_O=${_ld_o-$LD_O}
3529 LD_LIB=${_ld_lib-$LD_LIB}
3530 LD_PATH=${_ld_path-$LD_PATH}
3531
3532 probe_cc hostld "$host_ld"
3533 host_ldflags_filter=$_flags_filter
3534 add_host_ldflags $_flags $_ldflags
3535 HOSTLD_O=${_ld_o-$HOSTLD_O}
3536
3537 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3538     probe_cc depcc "$dep_cc"
3539     CCDEP=${_DEPCMD:-$DEPCMD}
3540     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3541     DEPCCFLAGS=$_flags
3542 fi
3543
3544 if $ar 2>&1 | grep -q Microsoft; then
3545     arflags="-nologo"
3546     ar_o='-out:$@'
3547 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3548     arflags="rq"
3549     ar_o='$@'
3550 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3551     arflags='-Xany -r -c'
3552     ar_o='$@'
3553 else
3554     arflags="rc"
3555     ar_o='$@'
3556 fi
3557
3558 add_cflags $extra_cflags
3559 add_cxxflags $extra_cxxflags
3560 add_asflags $extra_cflags
3561
3562 if test -n "$sysroot"; then
3563     case "$cc_type" in
3564         gcc|llvm_gcc|clang)
3565             add_cppflags --sysroot="$sysroot"
3566             add_ldflags --sysroot="$sysroot"
3567 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3568             add_cppflags -isysroot "$sysroot"
3569             add_ldflags -isysroot "$sysroot"
3570         ;;
3571         tms470)
3572             add_cppflags -I"$sysinclude"
3573             add_ldflags  --sysroot="$sysroot"
3574         ;;
3575     esac
3576 fi
3577
3578 if test "$cpu" = host; then
3579     enabled cross_compile &&
3580         die "--cpu=host makes no sense when cross-compiling."
3581
3582     case "$cc_type" in
3583         gcc|llvm_gcc)
3584             check_native(){
3585                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3586                 sed -n "/cc1.*$1=/{
3587                             s/.*$1=\\([^ ]*\\).*/\\1/
3588                             p
3589                             q
3590                         }" $TMPE
3591             }
3592             cpu=$(check_native -march || check_native -mcpu)
3593         ;;
3594     esac
3595
3596     test "${cpu:-host}" = host &&
3597         die "--cpu=host not supported with compiler $cc"
3598 fi
3599
3600 # Deal with common $arch aliases
3601 case "$arch" in
3602     aarch64|arm64)
3603         arch="aarch64"
3604     ;;
3605     arm*|iPad*|iPhone*)
3606         arch="arm"
3607     ;;
3608     mips*|IP*)
3609         arch="mips"
3610     ;;
3611     parisc*|hppa*)
3612         arch="parisc"
3613     ;;
3614     "Power Macintosh"|ppc*|powerpc*)
3615         arch="ppc"
3616     ;;
3617     s390|s390x)
3618         arch="s390"
3619     ;;
3620     sh4|sh)
3621         arch="sh4"
3622     ;;
3623     sun4u|sparc*)
3624         arch="sparc"
3625     ;;
3626     tilegx|tile-gx)
3627         arch="tilegx"
3628     ;;
3629     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3630         arch="x86"
3631     ;;
3632 esac
3633
3634 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3635 enable $arch
3636
3637 # Add processor-specific flags
3638 if enabled aarch64; then
3639
3640     case $cpu in
3641         armv*)
3642             cpuflags="-march=$cpu"
3643         ;;
3644         *)
3645             cpuflags="-mcpu=$cpu"
3646         ;;
3647     esac
3648
3649 elif enabled alpha; then
3650
3651     cpuflags="-mcpu=$cpu"
3652
3653 elif enabled arm; then
3654
3655     check_arm_arch() {
3656         check_cpp_condition stddef.h \
3657             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3658             $cpuflags
3659     }
3660
3661     probe_arm_arch() {
3662         if   check_arm_arch 4;        then echo armv4;
3663         elif check_arm_arch 4T;       then echo armv4t;
3664         elif check_arm_arch 5;        then echo armv5;
3665         elif check_arm_arch 5E;       then echo armv5e;
3666         elif check_arm_arch 5T;       then echo armv5t;
3667         elif check_arm_arch 5TE;      then echo armv5te;
3668         elif check_arm_arch 5TEJ;     then echo armv5te;
3669         elif check_arm_arch 6;        then echo armv6;
3670         elif check_arm_arch 6J;       then echo armv6j;
3671         elif check_arm_arch 6K;       then echo armv6k;
3672         elif check_arm_arch 6Z;       then echo armv6z;
3673         elif check_arm_arch 6ZK;      then echo armv6zk;
3674         elif check_arm_arch 6T2;      then echo armv6t2;
3675         elif check_arm_arch 7;        then echo armv7;
3676         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3677         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3678         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3679         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3680         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3681         fi
3682     }
3683
3684     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3685
3686     case $cpu in
3687         armv*)
3688             cpuflags="-march=$cpu"
3689             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3690         ;;
3691         *)
3692             cpuflags="-mcpu=$cpu"
3693             case $cpu in
3694                 cortex-a*)                               subarch=armv7a  ;;
3695                 cortex-r*)                               subarch=armv7r  ;;
3696                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3697                 arm11*)                                  subarch=armv6   ;;
3698                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3699                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3700                 *)                             subarch=$(probe_arm_arch) ;;
3701             esac
3702         ;;
3703     esac
3704
3705     case "$subarch" in
3706         armv5t*)    enable fast_clz                ;;
3707         armv[6-8]*)
3708             enable fast_clz
3709             disabled fast_unaligned || enable fast_unaligned
3710             ;;
3711     esac
3712
3713 elif enabled avr32; then
3714
3715     case $cpu in
3716         ap7[02]0[0-2])
3717             subarch="avr32_ap"
3718             cpuflags="-mpart=$cpu"
3719         ;;
3720         ap)
3721             subarch="avr32_ap"
3722             cpuflags="-march=$cpu"
3723         ;;
3724         uc3[ab]*)
3725             subarch="avr32_uc"
3726             cpuflags="-mcpu=$cpu"
3727         ;;
3728         uc)
3729             subarch="avr32_uc"
3730             cpuflags="-march=$cpu"
3731         ;;
3732     esac
3733
3734 elif enabled bfin; then
3735
3736     cpuflags="-mcpu=$cpu"
3737
3738 elif enabled mips; then
3739
3740     cpuflags="-march=$cpu"
3741
3742     case $cpu in
3743         24kc)
3744             disable mipsfpu
3745             disable mipsdspr1
3746             disable mipsdspr2
3747         ;;
3748         24kf*)
3749             disable mipsdspr1
3750             disable mipsdspr2
3751         ;;
3752         24kec|34kc|1004kc)
3753             disable mipsfpu
3754             disable mipsdspr2
3755         ;;
3756         24kef*|34kf*|1004kf*)
3757             disable mipsdspr2
3758         ;;
3759         74kc)
3760             disable mipsfpu
3761         ;;
3762     esac
3763
3764 elif enabled ppc; then
3765
3766     disable ldbrx
3767     disable vsx
3768
3769     case $(tolower $cpu) in
3770         601|ppc601|powerpc601)
3771             cpuflags="-mcpu=601"
3772             disable altivec
3773         ;;
3774         603*|ppc603*|powerpc603*)
3775             cpuflags="-mcpu=603"
3776             disable altivec
3777         ;;
3778         604*|ppc604*|powerpc604*)
3779             cpuflags="-mcpu=604"
3780             disable altivec
3781         ;;
3782         g3|75*|ppc75*|powerpc75*)
3783             cpuflags="-mcpu=750"
3784             disable altivec
3785         ;;
3786         g4|745*|ppc745*|powerpc745*)
3787             cpuflags="-mcpu=7450"
3788         ;;
3789         74*|ppc74*|powerpc74*)
3790             cpuflags="-mcpu=7400"
3791         ;;
3792         g5|970|ppc970|powerpc970)
3793             cpuflags="-mcpu=970"
3794         ;;
3795         power[3-8]*)
3796             cpuflags="-mcpu=$cpu"
3797         ;;
3798         cell)
3799             cpuflags="-mcpu=cell"
3800             enable ldbrx
3801         ;;
3802         e500mc)
3803             cpuflags="-mcpu=e500mc"
3804             disable altivec
3805         ;;
3806         e500v2)
3807             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3808             disable altivec
3809             disable dcbzl
3810         ;;
3811         e500)
3812             cpuflags="-mcpu=8540 -mhard-float"
3813             disable altivec
3814             disable dcbzl
3815         ;;
3816     esac
3817
3818 elif enabled sparc; then
3819
3820     case $cpu in
3821         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3822             cpuflags="-mcpu=$cpu"
3823         ;;
3824         ultrasparc*|niagara[234])
3825             cpuflags="-mcpu=$cpu"
3826         ;;
3827     esac
3828
3829 elif enabled x86; then
3830
3831     case $cpu in
3832         i[345]86|pentium)
3833             cpuflags="-march=$cpu"
3834             disable mmx
3835         ;;
3836         # targets that do NOT support nopl and conditional mov (cmov)
3837         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3838             cpuflags="-march=$cpu"
3839             disable i686
3840         ;;
3841         # targets that do support nopl and conditional mov (cmov)
3842         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3843         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3844             cpuflags="-march=$cpu"
3845             enable i686
3846             enable fast_cmov
3847         ;;
3848         # targets that do support conditional mov but on which it's slow
3849         pentium4|pentium4m|prescott|nocona)
3850             cpuflags="-march=$cpu"
3851             enable i686
3852             disable fast_cmov
3853         ;;
3854     esac
3855
3856 fi
3857
3858 if [ "$cpu" != generic ]; then
3859     add_cflags  $cpuflags
3860     add_asflags $cpuflags
3861 fi
3862
3863 # compiler sanity check
3864 check_exec <<EOF
3865 int main(void){ return 0; }
3866 EOF
3867 if test "$?" != 0; then
3868     echo "$cc is unable to create an executable file."
3869     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3870         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3871         echo "Only do this if you know what cross compiling means."
3872     fi
3873     die "C compiler test failed."
3874 fi
3875
3876 add_cppflags -D_ISOC99_SOURCE
3877 add_cxxflags -D__STDC_CONSTANT_MACROS
3878 check_cflags -std=c99
3879 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3880 #include <stdlib.h>
3881 EOF
3882 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3883 #include <stdlib.h>
3884 EOF
3885
3886 add_host_cppflags -D_ISOC99_SOURCE
3887 check_host_cflags -std=c99
3888 check_host_cflags -Wall
3889 check_host_cflags -O3
3890
3891 check_64bit(){
3892     arch32=$1
3893     arch64=$2
3894     expr=$3
3895     check_code cc "" "int test[2*($expr) - 1]" &&
3896         subarch=$arch64 || subarch=$arch32
3897 }
3898
3899 case "$arch" in
3900     aarch64|alpha|ia64)
3901         spic=$shared
3902     ;;
3903     mips)
3904         check_64bit mips mips64 '_MIPS_SIM > 1'
3905         spic=$shared
3906     ;;
3907     parisc)
3908         check_64bit parisc parisc64 'sizeof(void *) > 4'
3909         spic=$shared
3910     ;;
3911     ppc)
3912         check_64bit ppc ppc64 'sizeof(void *) > 4'
3913         spic=$shared
3914     ;;
3915     s390)
3916         check_64bit s390 s390x 'sizeof(void *) > 4'
3917         spic=$shared
3918     ;;
3919     sparc)
3920         check_64bit sparc sparc64 'sizeof(void *) > 4'
3921         spic=$shared
3922     ;;
3923     x86)
3924         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3925         if test "$subarch" = "x86_64"; then
3926             spic=$shared
3927         fi
3928     ;;
3929     ppc)
3930         check_cc <<EOF && subarch="ppc64"
3931         int test[(int)sizeof(char*) - 7];
3932 EOF
3933     ;;
3934 esac
3935
3936 enable $subarch
3937 enabled spic && enable_weak pic
3938
3939 # OS specific
3940 case $target_os in
3941     aix)
3942         SHFLAGS=-shared
3943         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3944         enabled shared && add_ldflags -Wl,-brtl
3945         ;;
3946     android)
3947         disable symver
3948         SLIB_INSTALL_NAME='$(SLIBNAME)'
3949         SLIB_INSTALL_LINKS=
3950         # soname not set on purpose
3951         SHFLAGS=-shared
3952         ;;
3953     haiku)
3954         prefix_default="/boot/common"
3955         network_extralibs="-lnetwork"
3956         host_libs=
3957         ;;
3958     sunos)
3959         SHFLAGS='-shared -Wl,-h,$$(@F)'
3960         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3961         network_extralibs="-lsocket -lnsl"
3962         # When using suncc to build, the Solaris linker will mark
3963         # an executable with each instruction set encountered by
3964         # the Solaris assembler.  As our libraries contain their own
3965         # guards for processor-specific code, instead suppress
3966         # generation of the HWCAPS ELF section on Solaris x86 only.
3967         enabled_all suncc x86 &&
3968             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3969             add_ldflags -Wl,-M,mapfile
3970         nm_default='nm -P -g'
3971         ;;
3972     netbsd)
3973         disable symver
3974         oss_indev_extralibs="-lossaudio"
3975         oss_outdev_extralibs="-lossaudio"
3976         enabled gcc || check_ldflags -Wl,-zmuldefs
3977         ;;
3978     openbsd|bitrig)
3979         disable symver
3980         SHFLAGS='-shared'
3981         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3982         SLIB_INSTALL_LINKS=
3983         oss_indev_extralibs="-lossaudio"
3984         oss_outdev_extralibs="-lossaudio"
3985         ;;
3986     dragonfly)
3987         disable symver
3988         ;;
3989     freebsd)
3990         ;;
3991     bsd/os)
3992         add_extralibs -lpoll -lgnugetopt
3993         strip="strip -d"
3994         ;;
3995     darwin)
3996         enabled ppc && add_asflags -force_cpusubtype_ALL
3997         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3998         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3999         strip="${strip} -x"
4000         add_ldflags -Wl,-dynamic,-search_paths_first
4001         SLIBSUF=".dylib"
4002         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4003         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4004         objformat="macho"
4005         enabled x86_64 && objformat="macho64"
4006         enabled_any pic shared ||
4007             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4008         ;;
4009     mingw32*)
4010         if test $target_os = "mingw32ce"; then
4011             disable network
4012         else
4013             target_os=mingw32
4014         fi
4015         LIBTARGET=i386
4016         if enabled x86_64; then
4017             LIBTARGET="i386:x86-64"
4018         elif enabled arm; then
4019             LIBTARGET=arm-wince
4020         fi
4021         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4022         check_ldflags -Wl,--nxcompat
4023         check_ldflags -Wl,--dynamicbase
4024         shlibdir_default="$bindir_default"
4025         SLIBPREF=""
4026         SLIBSUF=".dll"
4027         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4028         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4029         dlltool="${cross_prefix}dlltool"
4030         if check_cmd lib.exe -list; then
4031             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4032             if enabled x86_64; then
4033                 LIBTARGET=x64
4034             fi
4035         elif check_cmd $dlltool --version; then
4036             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4037         fi
4038         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4039         SLIB_INSTALL_LINKS=
4040         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4041         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4042         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4043         objformat="win32"
4044         ranlib=:
4045         enable dos_paths
4046         ;;
4047     win32|win64)
4048         disable symver
4049         if enabled shared; then
4050             # Link to the import library instead of the normal static library
4051             # for shared libs.
4052             LD_LIB='%.lib'
4053             # Cannot build both shared and static libs with MSVC or icl.
4054             disable static
4055         fi
4056         shlibdir_default="$bindir_default"
4057         SLIBPREF=""
4058         SLIBSUF=".dll"
4059         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4060         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4061         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4062         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4063         SLIB_INSTALL_LINKS=
4064         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4065         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4066         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4067         objformat="win32"
4068         ranlib=:
4069         enable dos_paths
4070         ;;
4071     cygwin*)
4072         target_os=cygwin
4073         shlibdir_default="$bindir_default"
4074         SLIBPREF="cyg"
4075         SLIBSUF=".dll"
4076         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4077         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4078         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4079         SLIB_INSTALL_LINKS=
4080         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4081         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4082         objformat="win32"
4083         enable dos_paths
4084         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4085         ;;
4086     *-dos|freedos|opendos)
4087         network_extralibs="-lsocket"
4088         objformat="coff"
4089         enable dos_paths
4090         add_cppflags -U__STRICT_ANSI__
4091         ;;
4092     linux)
4093         enable dv1394
4094         ;;
4095     irix*)
4096         target_os=irix
4097         ranlib="echo ignoring ranlib"
4098         ;;
4099     os/2*)
4100         strip="lxlite -CS"
4101         ln_s="cp -f"
4102         objformat="aout"
4103         add_cppflags -D_GNU_SOURCE
4104         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4105         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4106         LIBSUF="_s.a"
4107         SLIBPREF=""
4108         SLIBSUF=".dll"
4109         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4110         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4111         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4112             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4113             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4114             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4115             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4116             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4117         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4118             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4119         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4120         enable dos_paths
4121         enable_weak os2threads
4122         ;;
4123     gnu/kfreebsd)
4124         add_cppflags -D_BSD_SOURCE
4125         ;;
4126     gnu)
4127         ;;
4128     qnx)
4129         add_cppflags -D_QNX_SOURCE
4130         network_extralibs="-lsocket"
4131         ;;
4132     symbian)
4133         SLIBSUF=".dll"
4134         enable dos_paths
4135         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4136         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4137         add_ldflags -Wl,--target1-abs,--no-undefined \
4138                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4139                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4140         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4141                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4142                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4143         ;;
4144     osf1)
4145         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4146         ;;
4147     minix)
4148         ;;
4149     plan9)
4150         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4151                      -D_REENTRANT_SOURCE        \
4152                      -D_RESEARCH_SOURCE         \
4153                      -DFD_SETSIZE=96            \
4154                      -DHAVE_SOCK_OPTS
4155         add_compat strtod.o strtod=avpriv_strtod
4156         network_extralibs='-lbsd'
4157         exeobjs=compat/plan9/main.o
4158         disable ffserver
4159         cp_f='cp'
4160         ;;
4161     none)
4162         ;;
4163     *)
4164         die "Unknown OS '$target_os'."
4165         ;;
4166 esac
4167
4168 # determine libc flavour
4169
4170 probe_libc(){
4171     pfx=$1
4172     pfx_no_=${pfx%_}
4173     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4174     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4175         eval ${pfx}libc_type=uclibc
4176         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4177     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4178         eval ${pfx}libc_type=glibc
4179         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4180     # MinGW headers can be installed on Cygwin, so check for newlib first.
4181     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4182         eval ${pfx}libc_type=newlib
4183         add_${pfx}cppflags -U__STRICT_ANSI__
4184     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4185     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4186         eval ${pfx}libc_type=mingw64
4187         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4188             add_compat msvcrt/snprintf.o
4189             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4190         fi
4191         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4192         eval test \$${pfx_no_}cc_type = "gcc" &&
4193             add_${pfx}cppflags -D__printf__=__gnu_printf__
4194     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4195          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4196         eval ${pfx}libc_type=mingw32
4197         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4198             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4199             die "ERROR: MinGW32 runtime version must be >= 3.15."
4200         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4201         eval test \$${pfx_no_}cc_type = "gcc" &&
4202             add_${pfx}cppflags -D__printf__=__gnu_printf__
4203     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4204         eval ${pfx}libc_type=msvcrt
4205         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4206         # 0x601 by default unless something else is set by the user.
4207         # This can easily lead to us detecting functions only present
4208         # in such new versions and producing binaries requiring windows 7.0.
4209         # Therefore explicitly set the default to XP unless the user has
4210         # set something else on the command line.
4211         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4212             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4213     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4214         eval ${pfx}libc_type=klibc
4215     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4216         eval ${pfx}libc_type=bionic
4217     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4218         eval ${pfx}libc_type=solaris
4219         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4220     fi
4221 }
4222
4223 probe_libc
4224 test -n "$libc_type" && enable libc_$libc_type
4225 probe_libc host_
4226 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4227
4228 case $libc_type in
4229     bionic)
4230         add_compat strtod.o strtod=avpriv_strtod
4231         ;;
4232     msvcrt)
4233         add_compat strtod.o strtod=avpriv_strtod
4234         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4235                                      _snprintf=avpriv_snprintf  \
4236                                      vsnprintf=avpriv_vsnprintf
4237         ;;
4238 esac
4239
4240 # hacks for compiler/libc/os combinations
4241
4242 if enabled_all tms470 libc_glibc; then
4243     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4244     add_cppflags -D__USER_LABEL_PREFIX__=
4245     add_cppflags -D__builtin_memset=memset
4246     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4247     add_cflags   -pds=48    # incompatible redefinition of macro
4248 fi
4249
4250 if enabled_all ccc libc_glibc; then
4251     add_ldflags -Wl,-z,now  # calls to libots crash without this
4252 fi
4253
4254 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4255     add_cppflags '-I\$(SRC_PATH)/compat/float'
4256
4257 esc(){
4258     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4259 }
4260
4261 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4262
4263 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4264
4265 set_default $PATHS_LIST
4266 set_default nm
4267
4268 # we need to build at least one lib type
4269 if ! enabled_any static shared; then
4270     cat <<EOF
4271 At least one library type must be built.
4272 Specify --enable-static to build the static libraries or --enable-shared to
4273 build the shared libraries as well. To only build the shared libraries specify
4274 --disable-static in addition to --enable-shared.
4275 EOF
4276     exit 1;
4277 fi
4278
4279 die_license_disabled() {
4280     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4281 }
4282
4283 die_license_disabled_gpl() {
4284     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4285 }
4286
4287 die_license_disabled gpl frei0r
4288 die_license_disabled gpl libcdio
4289 die_license_disabled gpl libsmbclient
4290 die_license_disabled gpl libutvideo
4291 die_license_disabled gpl libvidstab
4292 die_license_disabled gpl libx264
4293 die_license_disabled gpl libx265
4294 die_license_disabled gpl libxavs
4295 die_license_disabled gpl libxvid
4296 die_license_disabled gpl libzvbi
4297 die_license_disabled gpl x11grab
4298
4299 die_license_disabled nonfree libaacplus
4300 die_license_disabled nonfree libfaac
4301 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4302 enabled gpl && die_license_disabled_gpl nonfree openssl
4303
4304 die_license_disabled version3 libopencore_amrnb
4305 die_license_disabled version3 libopencore_amrwb
4306 die_license_disabled version3 libsmbclient
4307 die_license_disabled version3 libvo_aacenc
4308 die_license_disabled version3 libvo_amrwbenc
4309
4310 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4311
4312 disabled optimizations || check_cflags -fomit-frame-pointer
4313
4314 enable_weak_pic() {
4315     disabled pic && return
4316     enable pic
4317     add_cppflags -DPIC
4318     case "$target_os" in
4319     mingw*|cygwin*)
4320         ;;
4321     *)
4322         add_cflags -fPIC
4323         ;;
4324     esac
4325     add_asflags  -fPIC
4326 }
4327
4328 enabled pic && enable_weak_pic
4329
4330 check_cc <<EOF || die "Symbol mangling check failed."
4331 int ff_extern;
4332 EOF
4333 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4334 extern_prefix=${sym%%ff_extern*}
4335
4336 check_cc <<EOF && enable_weak inline_asm
4337 void foo(void) { __asm__ volatile ("" ::); }
4338 EOF
4339
4340 _restrict=
4341 for restrict_keyword in restrict __restrict__ __restrict; do
4342     check_cc <<EOF && _restrict=$restrict_keyword && break
4343 void foo(char * $restrict_keyword p);
4344 EOF
4345 done
4346
4347 check_cc <<EOF && enable pragma_deprecated
4348 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4349 EOF
4350
4351 check_cc <<EOF && enable attribute_packed
4352 struct { int x; } __attribute__((packed)) x;
4353 EOF
4354
4355 check_cc <<EOF && enable attribute_may_alias
4356 union { int x; } __attribute__((may_alias)) x;
4357 EOF
4358
4359 check_cc <<EOF || die "endian test failed"
4360 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4361 EOF
4362 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4363
4364 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4365     if ! enabled bigendian ;then
4366         enable vsx
4367     fi
4368 fi
4369
4370 check_gas() {
4371     log "check_gas using '$as' as AS"
4372     # :vararg is used on aarch64, arm and ppc altivec
4373     check_as <<EOF || return 1
4374 .macro m n, y:vararg=0
4375 \n: .int \y
4376 .endm
4377 m x
4378 EOF
4379     # .altmacro is only used in arm asm
4380     ! enabled arm || check_as <<EOF || return 1
4381 .altmacro
4382 EOF
4383     enable gnu_as
4384     return 0
4385 }
4386
4387 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4388     nogas=:
4389     enabled_any arm aarch64 && nogas=die
4390     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4391     as_noop=-v
4392
4393     case $as_type in
4394         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4395         gcc)  gaspp_as_type=gas ;;
4396         *)    gaspp_as_type=$as_type ;;
4397     esac
4398
4399     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4400
4401     test "${as#*gas-preprocessor.pl}" != "$as" ||
4402     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4403         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4404
4405     if ! check_gas ; then
4406         as=${gas:=$as}
4407         check_gas || \
4408             $nogas "GNU assembler not found, install/update gas-preprocessor"
4409     fi
4410
4411     check_as <<EOF && enable as_func
4412 .func test
4413 .endfunc
4414 EOF
4415 fi
4416
4417 check_inline_asm inline_asm_labels '"1:\n"'
4418
4419 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4420
4421 if enabled aarch64; then
4422     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4423     # internal assembler in clang 3.3 does not support this instruction
4424     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4425     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4426
4427     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4428
4429 elif enabled alpha; then
4430
4431     check_cflags -mieee
4432
4433 elif enabled arm; then
4434
4435     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4436 float func(float a, float b){ return a+b; }
4437 EOF
4438
4439     enabled thumb && check_cflags -mthumb || check_cflags -marm
4440
4441     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4442         enable vfp_args
4443     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4444         case "${cross_prefix:-$cc}" in
4445             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4446             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4447 __asm__ (".eabi_attribute 28, 1");
4448 int main(void) { return 0; }
4449 EOF
4450         esac
4451         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4452     fi
4453
4454     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4455     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4456     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4457     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4458     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4459     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4460     enabled setend  && check_insn setend  'setend be'
4461
4462     [ $target_os = linux ] || [ $target_os = android ] ||
4463         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4464             $ARCH_EXT_LIST_ARM
4465
4466     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4467
4468     check_as <<EOF && enable as_dn_directive
4469 ra .dn d0.i16
4470 .unreq ra
4471 EOF
4472
4473     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4474
4475 elif enabled mips; then
4476
4477     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4478     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4479      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4480     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4481      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4482     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4483      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4484     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4485      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4486
4487 elif enabled parisc; then
4488
4489     if enabled gcc; then
4490         case $($cc -dumpversion) in
4491             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4492         esac
4493     fi
4494
4495 elif enabled ppc; then
4496
4497     enable local_aligned_8 local_aligned_16 local_aligned_32
4498
4499     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4500     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4501     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4502     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4503
4504     # AltiVec flags: The FSF version of GCC differs from the Apple version
4505     if enabled altivec; then
4506         check_cflags -maltivec -mabi=altivec &&
4507         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4508         check_cflags -faltivec
4509
4510         # check if our compiler supports Motorola AltiVec C API
4511         check_cc <<EOF || disable altivec
4512 $inc_altivec_h
4513 int main(void) {
4514     vector signed int v1 = (vector signed int) { 0 };
4515     vector signed int v2 = (vector signed int) { 1 };
4516     v1 = vec_add(v1, v2);
4517     return 0;
4518 }
4519 EOF
4520
4521         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4522     fi
4523
4524     if enabled vsx; then
4525         check_cflags -mvsx
4526     fi
4527 elif enabled x86; then
4528
4529     check_builtin rdtsc    intrin.h   "__rdtsc()"
4530     check_builtin mm_empty mmintrin.h "_mm_empty()"
4531
4532     enable local_aligned_8 local_aligned_16 local_aligned_32
4533
4534     # check whether EBP is available on x86
4535     # As 'i' is stored on the stack, this program will crash
4536     # if the base pointer is used to access it because the
4537     # base pointer is cleared in the inline assembly code.
4538     check_exec_crash <<EOF && enable ebp_available
4539 volatile int i=0;
4540 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4541 return i;
4542 EOF
4543
4544     # check whether EBX is available on x86
4545     check_inline_asm ebx_available '""::"b"(0)' &&
4546         check_inline_asm ebx_available '"":::"%ebx"'
4547
4548     # check whether xmm clobbers are supported
4549     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4550
4551     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4552         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4553
4554     # check whether binutils is new enough to compile SSSE3/MMXEXT
4555     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4556     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4557
4558     if ! disabled_any asm mmx yasm; then
4559         if check_cmd $yasmexe --version; then
4560             enabled x86_64 && yasm_extra="-m amd64"
4561             yasm_debug="-g dwarf2"
4562         elif check_cmd nasm -v; then
4563             yasmexe=nasm
4564             yasm_debug="-g -F dwarf"
4565             if enabled x86_64; then
4566                 case "$objformat" in
4567                     elf)   objformat=elf64 ;;
4568                     win32) objformat=win64 ;;
4569                 esac
4570             fi
4571         fi
4572
4573         YASMFLAGS="-f $objformat $yasm_extra"
4574         enabled pic               && append YASMFLAGS "-DPIC"
4575         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4576         case "$objformat" in
4577             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4578         esac
4579
4580         check_yasm "movbe ecx, [5]" && enable yasm ||
4581             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4582         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4583         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4584         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4585         check_yasm "CPU amdnop" || disable cpunop
4586     fi
4587
4588     case "$cpu" in
4589         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4590             disable fast_clz
4591         ;;
4592     esac
4593
4594 fi
4595
4596 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4597
4598 check_ldflags -Wl,--as-needed
4599
4600 if check_func dlopen; then
4601     ldl=
4602 elif check_func dlopen -ldl; then
4603     ldl=-ldl
4604 fi
4605
4606 if ! disabled network; then
4607     check_func getaddrinfo $network_extralibs
4608     check_func getservbyport $network_extralibs
4609     check_func inet_aton $network_extralibs
4610
4611     check_type netdb.h "struct addrinfo"
4612     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4613     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4614     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4615     check_type poll.h "struct pollfd"
4616     check_type netinet/sctp.h "struct sctp_event_subscribe"
4617     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4618     check_type netinet/in.h "struct sockaddr_in6"
4619     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4620     check_type "sys/types.h sys/socket.h" socklen_t
4621
4622     # Prefer arpa/inet.h over winsock2
4623     if check_header arpa/inet.h ; then
4624         check_func closesocket
4625     elif check_header winsock2.h ; then
4626         check_func_headers winsock2.h closesocket -lws2 &&
4627             network_extralibs="-lws2" ||
4628         { check_func_headers winsock2.h closesocket -lws2_32 &&
4629             network_extralibs="-lws2_32"; } || disable winsock2_h network
4630         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4631
4632         check_type ws2tcpip.h socklen_t
4633         check_type ws2tcpip.h "struct addrinfo"
4634         check_type ws2tcpip.h "struct group_source_req"
4635         check_type ws2tcpip.h "struct ip_mreq_source"
4636         check_type ws2tcpip.h "struct ipv6_mreq"
4637         check_type winsock2.h "struct pollfd"
4638         check_struct winsock2.h "struct sockaddr" sa_len
4639         check_type ws2tcpip.h "struct sockaddr_in6"
4640         check_type ws2tcpip.h "struct sockaddr_storage"
4641     else
4642         disable network
4643     fi
4644 fi
4645
4646 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4647 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4648 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4649 check_builtin sarestart signal.h "SA_RESTART"
4650 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4651
4652 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4653 check_func  ${malloc_prefix}memalign            && enable memalign
4654 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4655
4656 check_func  access
4657 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4658 check_func  fcntl
4659 check_func  fork
4660 check_func  gethrtime
4661 check_func  getopt
4662 check_func  getrusage
4663 check_func  gettimeofday
4664 check_func  isatty
4665 check_func  localtime_r
4666 check_func  mach_absolute_time
4667 check_func  mkstemp
4668 check_func  mmap
4669 check_func  mprotect
4670 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4671 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4672 check_func  sched_getaffinity
4673 check_func  setrlimit
4674 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4675 check_func  strerror_r
4676 check_func  sysconf
4677 check_func  sysctl
4678 check_func  usleep
4679
4680 check_func_headers conio.h kbhit
4681 check_func_headers io.h setmode
4682 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4683 check_func_headers stdlib.h getenv
4684
4685 check_func_headers windows.h CoTaskMemFree -lole32
4686 check_func_headers windows.h GetProcessAffinityMask
4687 check_func_headers windows.h GetProcessTimes
4688 check_func_headers windows.h GetSystemTimeAsFileTime
4689 check_func_headers windows.h MapViewOfFile
4690 check_func_headers windows.h PeekNamedPipe
4691 check_func_headers windows.h SetConsoleTextAttribute
4692 check_func_headers windows.h Sleep
4693 check_func_headers windows.h VirtualAlloc
4694 check_func_headers glob.h glob
4695 enabled xlib &&
4696     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4697
4698 check_header cl/cl.h
4699 check_header direct.h
4700 check_header dlfcn.h
4701 check_header dxva.h
4702 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4703 check_header io.h
4704 check_header libcrystalhd/libcrystalhd_if.h
4705 check_header mach/mach_time.h
4706 check_header malloc.h
4707 check_header poll.h
4708 check_header sys/mman.h
4709 check_header sys/param.h
4710 check_header sys/resource.h
4711 check_header sys/select.h
4712 check_header sys/time.h
4713 check_header sys/un.h
4714 check_header termios.h
4715 check_header unistd.h
4716 check_header vdpau/vdpau.h
4717 check_header vdpau/vdpau_x11.h
4718 check_header VideoDecodeAcceleration/VDADecoder.h
4719 check_header windows.h
4720 check_header X11/extensions/XvMClib.h
4721 check_header asm/types.h
4722
4723 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4724 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4725 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4726
4727 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4728
4729 if ! disabled w32threads && ! enabled pthreads; then
4730     check_func_headers "windows.h process.h" _beginthreadex &&
4731         enable w32threads || disable w32threads
4732 fi
4733
4734 # check for some common methods of building with pthread support
4735 # do this before the optional library checks as some of them require pthreads
4736 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4737     enable pthreads
4738     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4739         add_cflags -pthread
4740         add_extralibs -pthread
4741     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4742         add_cflags -pthreads
4743         add_extralibs -pthreads
4744     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4745         add_cflags -ldl -pthread
4746         add_extralibs -ldl -pthread
4747     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4748         add_extralibs -lpthreadGC2
4749     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4750         :
4751     elif ! check_func pthread_join && ! check_func pthread_create; then
4752         disable pthreads
4753     fi
4754     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4755 fi
4756
4757
4758 if enabled pthreads; then
4759   check_func pthread_cancel
4760 fi
4761
4762 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4763 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4764 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
4765
4766 check_lib math.h sin -lm && LIBM="-lm"
4767 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4768
4769 atan2f_args=2
4770 ldexpf_args=2
4771 powf_args=2
4772 fminf_args=2
4773
4774 for func in $MATH_FUNCS; do
4775     eval check_mathfunc $func \${${func}_args:-1}
4776 done
4777
4778 # these are off by default, so fail if requested and not available
4779 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4780 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4781                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4782                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4783 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4784 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4785 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4786 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4787 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4788 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4789 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4790 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4791 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4792 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4793                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4794                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4795 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4796 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4797 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4798 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4799 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4800 enabled fontconfig        && enable libfontconfig
4801 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4802 enabled libfreetype       && require_libfreetype
4803 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4804 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4805 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4806                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4807                                done || die "ERROR: libgsm not found"; }
4808 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4809 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4810 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4811 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4812 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4813 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4814 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4815 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4816