12b2da5dc2a7c4525fce5ee9d1ef72af70b7d360
[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-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Hardware accelerators:
152   --disable-dxva2          disable DXVA2 code [autodetect]
153   --disable-vaapi          disable VAAPI code [autodetect]
154   --disable-vda            disable VDA code [autodetect]
155   --disable-vdpau          disable VDPAU code [autodetect]
156
157 Individual component options:
158   --disable-everything     disable all components listed below
159   --disable-encoder=NAME   disable encoder NAME
160   --enable-encoder=NAME    enable encoder NAME
161   --disable-encoders       disable all encoders
162   --disable-decoder=NAME   disable decoder NAME
163   --enable-decoder=NAME    enable decoder NAME
164   --disable-decoders       disable all decoders
165   --disable-hwaccel=NAME   disable hwaccel NAME
166   --enable-hwaccel=NAME    enable hwaccel NAME
167   --disable-hwaccels       disable all hwaccels
168   --disable-muxer=NAME     disable muxer NAME
169   --enable-muxer=NAME      enable muxer NAME
170   --disable-muxers         disable all muxers
171   --disable-demuxer=NAME   disable demuxer NAME
172   --enable-demuxer=NAME    enable demuxer NAME
173   --disable-demuxers       disable all demuxers
174   --enable-parser=NAME     enable parser NAME
175   --disable-parser=NAME    disable parser NAME
176   --disable-parsers        disable all parsers
177   --enable-bsf=NAME        enable bitstream filter NAME
178   --disable-bsf=NAME       disable bitstream filter NAME
179   --disable-bsfs           disable all bitstream filters
180   --enable-protocol=NAME   enable protocol NAME
181   --disable-protocol=NAME  disable protocol NAME
182   --disable-protocols      disable all protocols
183   --enable-indev=NAME      enable input device NAME
184   --disable-indev=NAME     disable input device NAME
185   --disable-indevs         disable input devices
186   --enable-outdev=NAME     enable output device NAME
187   --disable-outdev=NAME    disable output device NAME
188   --disable-outdevs        disable output devices
189   --disable-devices        disable all devices
190   --enable-filter=NAME     enable filter NAME
191   --disable-filter=NAME    disable filter NAME
192   --disable-filters        disable all filters
193
194 External library support:
195   --enable-avisynth        enable reading of AviSynth script files [no]
196   --disable-bzlib          disable bzlib [autodetect]
197   --enable-fontconfig      enable fontconfig
198   --enable-frei0r          enable frei0r video filtering
199   --enable-gnutls          enable gnutls [no]
200   --disable-iconv          disable iconv [autodetect]
201   --enable-ladspa          enable LADSPA audio filtering
202   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
203   --enable-libass          enable libass subtitles rendering [no]
204   --enable-libbluray       enable BluRay reading using libbluray [no]
205   --enable-libbs2b         enable bs2b DSP library [no]
206   --enable-libcaca         enable textual display using libcaca
207   --enable-libcelt         enable CELT decoding via libcelt [no]
208   --enable-libcdio         enable audio CD grabbing with libcdio
209   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
210                            and libraw1394 [no]
211   --enable-libfaac         enable AAC encoding via libfaac [no]
212   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
213   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
214   --enable-libfreetype     enable libfreetype [no]
215   --enable-libfribidi      enable libfribidi [no]
216   --enable-libgme          enable Game Music Emu via libgme [no]
217   --enable-libgsm          enable GSM de/encoding via libgsm [no]
218   --enable-libiec61883     enable iec61883 via libiec61883 [no]
219   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
220   --enable-libmodplug      enable ModPlug via libmodplug [no]
221   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
222   --enable-libnut          enable NUT (de)muxing via libnut,
223                            native (de)muxer exists [no]
224   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
225   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
226   --enable-libopencv       enable video filtering via libopencv [no]
227   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
228   --enable-libopus         enable Opus de/encoding via libopus [no]
229   --enable-libpulse        enable Pulseaudio input via libpulse [no]
230   --enable-libquvi         enable quvi input via libquvi [no]
231   --enable-librtmp         enable RTMP[E] support via librtmp [no]
232   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
233   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
234   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
235   --enable-libsoxr         enable Include libsoxr resampling [no]
236   --enable-libspeex        enable Speex de/encoding via libspeex [no]
237   --enable-libssh          enable SFTP protocol via libssh [no]
238   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
239   --enable-libtheora       enable Theora encoding via libtheora [no]
240   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
241   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
242   --enable-libv4l2         enable libv4l2/v4l-utils [no]
243   --enable-libvidstab      enable video stabilization using vid.stab [no]
244   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
245   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
246   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
247                            native implementation exists [no]
248   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
249   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
250   --enable-libwebp         enable WebP encoding via libwebp [no]
251   --enable-libx264         enable H.264 encoding via x264 [no]
252   --enable-libx265         enable HEVC encoding via x265 [no]
253   --enable-libxavs         enable AVS encoding via xavs [no]
254   --enable-libxvid         enable Xvid encoding via xvidcore,
255                            native MPEG-4/Xvid encoder exists [no]
256   --enable-libzmq          enable message passing via libzmq [no]
257   --enable-libzvbi         enable teletext support via libzvbi [no]
258   --disable-lzma           disable lzma [autodetect]
259   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
260   --enable-openal          enable OpenAL 1.1 capture support [no]
261   --enable-opencl          enable OpenCL code
262   --enable-opengl          enable OpenGL rendering [no]
263   --enable-openssl         enable openssl [no]
264   --enable-x11grab         enable X11 grabbing [no]
265   --disable-xlib           disable xlib [autodetect]
266   --disable-zlib           disable zlib [autodetect]
267
268 Toolchain options:
269   --arch=ARCH              select architecture [$arch]
270   --cpu=CPU                select the minimum required CPU (affects
271                            instruction selection, may crash on older CPUs)
272   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
273   --progs-suffix=SUFFIX    program name suffix []
274   --enable-cross-compile   assume a cross-compiler is used
275   --sysroot=PATH           root of cross-build tree
276   --sysinclude=PATH        location of cross-build system headers
277   --target-os=OS           compiler targets OS [$target_os]
278   --target-exec=CMD        command to run executables on target
279   --target-path=DIR        path to view of build directory on target
280   --target-samples=DIR     path to samples directory on target
281   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
282   --toolchain=NAME         set tool defaults according to NAME
283   --nm=NM                  use nm tool NM [$nm_default]
284   --ar=AR                  use archive tool AR [$ar_default]
285   --as=AS                  use assembler AS [$as_default]
286   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
287   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
288   --cc=CC                  use C compiler CC [$cc_default]
289   --cxx=CXX                use C compiler CXX [$cxx_default]
290   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
291   --ld=LD                  use linker LD [$ld_default]
292   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
293   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
294   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
295   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
296   --host-cc=HOSTCC         use host C compiler HOSTCC
297   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
298   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
299   --host-ld=HOSTLD         use host linker HOSTLD
300   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
301   --host-libs=HLIBS        use libs HLIBS when linking for host
302   --host-os=OS             compiler host OS [$target_os]
303   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
304   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
305   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
306   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
307   --extra-libs=ELIBS       add ELIBS [$ELIBS]
308   --extra-version=STRING   version string suffix []
309   --optflags=OPTFLAGS      override optimization-related compiler flags
310   --build-suffix=SUFFIX    library name suffix []
311   --enable-pic             build position-independent code
312   --enable-thumb           compile for Thumb instruction set
313   --enable-lto             use link-time optimization
314
315 Advanced options (experts only):
316   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
317   --disable-symver         disable symbol versioning
318   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
319   --disable-safe-bitstream-reader
320                            disable buffer boundary checking in bitreaders
321                            (faster, but may crash)
322   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
323   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
324
325 Optimization options (experts only):
326   --disable-asm            disable all assembly optimizations
327   --disable-altivec        disable AltiVec optimizations
328   --disable-amd3dnow       disable 3DNow! optimizations
329   --disable-amd3dnowext    disable 3DNow! extended optimizations
330   --disable-mmx            disable MMX optimizations
331   --disable-mmxext         disable MMXEXT optimizations
332   --disable-sse            disable SSE optimizations
333   --disable-sse2           disable SSE2 optimizations
334   --disable-sse3           disable SSE3 optimizations
335   --disable-ssse3          disable SSSE3 optimizations
336   --disable-sse4           disable SSE4 optimizations
337   --disable-sse42          disable SSE4.2 optimizations
338   --disable-avx            disable AVX optimizations
339   --disable-xop            disable XOP optimizations
340   --disable-fma3           disable FMA3 optimizations
341   --disable-fma4           disable FMA4 optimizations
342   --disable-avx2           disable AVX2 optimizations
343   --disable-armv5te        disable armv5te optimizations
344   --disable-armv6          disable armv6 optimizations
345   --disable-armv6t2        disable armv6t2 optimizations
346   --disable-vfp            disable VFP optimizations
347   --disable-neon           disable NEON optimizations
348   --disable-inline-asm     disable use of inline assembly
349   --disable-yasm           disable use of nasm/yasm assembly
350   --disable-mips32r2       disable MIPS32R2 optimizations
351   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
352   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
353   --disable-mipsfpu        disable floating point MIPS optimizations
354   --disable-fast-unaligned consider unaligned accesses slow
355
356 Developer options (useful when working on FFmpeg itself):
357   --disable-debug          disable debugging symbols
358   --enable-debug=LEVEL     set the debug level [$debuglevel]
359   --disable-optimizations  disable compiler optimizations
360   --enable-extra-warnings  enable more compiler warnings
361   --disable-stripping      disable stripping of executables and shared libraries
362   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
363                            2 causes a slowdown at runtime.
364   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
365   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
366                            leaks and errors, using the specified valgrind binary.
367                            Cannot be combined with --target-exec
368   --enable-ftrapv          Trap arithmetic overflows
369   --samples=PATH           location of test samples for FATE, if not set use
370                            \$FATE_SAMPLES at make invocation time.
371   --enable-neon-clobber-test check NEON registers for clobbering (should be
372                            used only for debugging purposes)
373   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
374                            should be used only for debugging purposes)
375   --enable-random          randomly enable/disable components
376   --disable-random
377   --enable-random=LIST     randomly enable/disable specific components or
378   --disable-random=LIST    component groups. LIST is a comma-separated list
379                            of NAME[:PROB] entries where NAME is a component
380                            (group) and PROB the probability associated with
381                            NAME (default 0.5).
382   --random-seed=VALUE      seed value for --enable/disable-random
383
384 NOTE: Object files are built at the place where configure is launched.
385 EOF
386   exit 0
387 }
388
389 quotes='""'
390
391 log(){
392     echo "$@" >> $logfile
393 }
394
395 log_file(){
396     log BEGIN $1
397     pr -n -t $1 >> $logfile
398     log END $1
399 }
400
401 echolog(){
402     log "$@"
403     echo "$@"
404 }
405
406 warn(){
407     log "WARNING: $*"
408     WARNINGS="${WARNINGS}WARNING: $*\n"
409 }
410
411 die(){
412     echolog "$@"
413     cat <<EOF
414
415 If you think configure made a mistake, make sure you are using the latest
416 version from Git.  If the latest version fails, report the problem to the
417 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
418 EOF
419     if disabled logging; then
420         cat <<EOF
421 Rerun configure with logging enabled (do not use --disable-logging), and
422 include the log this produces with your report.
423 EOF
424     else
425         cat <<EOF
426 Include the log file "$logfile" produced by configure as this will help
427 solve the problem.
428 EOF
429     fi
430     exit 1
431 }
432
433 # Avoid locale weirdness, besides we really just want to translate ASCII.
434 toupper(){
435     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
436 }
437
438 tolower(){
439     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
440 }
441
442 c_escape(){
443     echo "$*" | sed 's/["\\]/\\\0/g'
444 }
445
446 sh_quote(){
447     v=$(echo "$1" | sed "s/'/'\\\\''/g")
448     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
449     echo "$v"
450 }
451
452 cleanws(){
453     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
454 }
455
456 filter(){
457     pat=$1
458     shift
459     for v; do
460         eval "case $v in $pat) echo $v ;; esac"
461     done
462 }
463
464 filter_out(){
465     pat=$1
466     shift
467     for v; do
468         eval "case $v in $pat) ;; *) echo $v ;; esac"
469     done
470 }
471
472 map(){
473     m=$1
474     shift
475     for v; do eval $m; done
476 }
477
478 add_suffix(){
479     suffix=$1
480     shift
481     for v; do echo ${v}${suffix}; done
482 }
483
484 set_all(){
485     value=$1
486     shift
487     for var in $*; do
488         eval $var=$value
489     done
490 }
491
492 set_weak(){
493     value=$1
494     shift
495     for var; do
496         eval : \${$var:=$value}
497     done
498 }
499
500 sanitize_var_name(){
501     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
502 }
503
504 set_safe(){
505     var=$1
506     shift
507     eval $(sanitize_var_name "$var")='$*'
508 }
509
510 get_safe(){
511     eval echo \$$(sanitize_var_name "$1")
512 }
513
514 pushvar(){
515     for pvar in $*; do
516         eval level=\${${pvar}_level:=0}
517         eval ${pvar}_${level}="\$$pvar"
518         eval ${pvar}_level=$(($level+1))
519     done
520 }
521
522 popvar(){
523     for pvar in $*; do
524         eval level=\${${pvar}_level:-0}
525         test $level = 0 && continue
526         eval level=$(($level-1))
527         eval $pvar="\${${pvar}_${level}}"
528         eval ${pvar}_level=$level
529         eval unset ${pvar}_${level}
530     done
531 }
532
533 enable(){
534     set_all yes $*
535 }
536
537 disable(){
538     set_all no $*
539 }
540
541 enable_weak(){
542     set_weak yes $*
543 }
544
545 disable_weak(){
546     set_weak no $*
547 }
548
549 enable_safe(){
550     for var; do
551         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
552     done
553 }
554
555 disable_safe(){
556     for var; do
557         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
558     done
559 }
560
561 do_enable_deep(){
562     for var; do
563         enabled $var && continue
564         eval sel="\$${var}_select"
565         eval sgs="\$${var}_suggest"
566         pushvar var sgs
567         enable_deep $sel
568         popvar sgs
569         enable_deep_weak $sgs
570         popvar var
571     done
572 }
573
574 enable_deep(){
575     do_enable_deep $*
576     enable $*
577 }
578
579 enable_deep_weak(){
580     for var; do
581         disabled $var && continue
582         pushvar var
583         do_enable_deep $var
584         popvar var
585         enable_weak $var
586     done
587 }
588
589 enabled(){
590     test "${1#!}" = "$1" && op== || op=!=
591     eval test "x\$${1#!}" $op "xyes"
592 }
593
594 disabled(){
595     test "${1#!}" = "$1" && op== || op=!=
596     eval test "x\$${1#!}" $op "xno"
597 }
598
599 enabled_all(){
600     for opt; do
601         enabled $opt || return 1
602     done
603 }
604
605 disabled_all(){
606     for opt; do
607         disabled $opt || return 1
608     done
609 }
610
611 enabled_any(){
612     for opt; do
613         enabled $opt && return 0
614     done
615 }
616
617 disabled_any(){
618     for opt; do
619         disabled $opt && return 0
620     done
621     return 1
622 }
623
624 set_default(){
625     for opt; do
626         eval : \${$opt:=\$${opt}_default}
627     done
628 }
629
630 is_in(){
631     value=$1
632     shift
633     for var in $*; do
634         [ $var = $value ] && return 0
635     done
636     return 1
637 }
638
639 do_check_deps(){
640     for cfg; do
641         cfg="${cfg#!}"
642         enabled ${cfg}_checking && die "Circular dependency for $cfg."
643         disabled ${cfg}_checking && continue
644         enable ${cfg}_checking
645         append allopts $cfg
646
647         eval dep_all="\$${cfg}_deps"
648         eval dep_any="\$${cfg}_deps_any"
649         eval dep_sel="\$${cfg}_select"
650         eval dep_sgs="\$${cfg}_suggest"
651         eval dep_ifa="\$${cfg}_if"
652         eval dep_ifn="\$${cfg}_if_any"
653
654         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
655         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
656         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
657
658         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
659         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
660         enabled_all  $dep_all || disable $cfg
661         enabled_any  $dep_any || disable $cfg
662         disabled_any $dep_sel && disable $cfg
663
664         if enabled $cfg; then
665             enable_deep $dep_sel
666             enable_deep_weak $dep_sgs
667         fi
668
669         disable ${cfg}_checking
670     done
671 }
672
673 check_deps(){
674     unset allopts
675
676     do_check_deps "$@"
677
678     for cfg in $allopts; do
679         enabled $cfg || continue
680         eval dep_extralibs="\$${cfg}_extralibs"
681         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
682     done
683 }
684
685 print_config(){
686     pfx=$1
687     files=$2
688     shift 2
689     map 'eval echo "$v \${$v:-no}"' "$@" |
690     awk "BEGIN { split(\"$files\", files) }
691         {
692             c = \"$pfx\" toupper(\$1);
693             v = \$2;
694             sub(/yes/, 1, v);
695             sub(/no/,  0, v);
696             for (f in files) {
697                 file = files[f];
698                 if (file ~ /\\.h\$/) {
699                     printf(\"#define %s %d\\n\", c, v) >>file;
700                 } else if (file ~ /\\.asm\$/) {
701                     printf(\"%%define %s %d\\n\", c, v) >>file;
702                 } else if (file ~ /\\.mak\$/) {
703                     n = -v ? \"\" : \"!\";
704                     printf(\"%s%s=yes\\n\", n, c) >>file;
705                 } else if (file ~ /\\.texi\$/) {
706                     pre = -v ? \"\" : \"@c \";
707                     yesno = \$2;
708                     c2 = tolower(c);
709                     gsub(/_/, \"-\", c2);
710                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
711                 }
712             }
713         }"
714 }
715
716 print_enabled(){
717     suf=$1
718     shift
719     for v; do
720         enabled $v && printf "%s\n" ${v%$suf};
721     done
722 }
723
724 append(){
725     var=$1
726     shift
727     eval "$var=\"\$$var $*\""
728 }
729
730 prepend(){
731     var=$1
732     shift
733     eval "$var=\"$* \$$var\""
734 }
735
736 unique(){
737     var=$1
738     uniq_list=""
739     for tok in $(eval echo \$$var); do
740         uniq_list="$(filter_out $tok $uniq_list) $tok"
741     done
742     eval "$var=\"${uniq_list}\""
743 }
744
745 add_cppflags(){
746     append CPPFLAGS "$@"
747 }
748
749 add_cflags(){
750     append CFLAGS $($cflags_filter "$@")
751 }
752
753 add_cxxflags(){
754     append CXXFLAGS $($cflags_filter "$@")
755 }
756
757 add_asflags(){
758     append ASFLAGS $($asflags_filter "$@")
759 }
760
761 add_ldflags(){
762     append LDFLAGS $($ldflags_filter "$@")
763 }
764
765 add_ldexeflags(){
766     append LDEXEFLAGS $($ldflags_filter "$@")
767 }
768
769 add_stripflags(){
770     append ASMSTRIPFLAGS "$@"
771 }
772
773 add_extralibs(){
774     prepend extralibs $($ldflags_filter "$@")
775 }
776
777 add_host_cppflags(){
778     append host_cppflags "$@"
779 }
780
781 add_host_cflags(){
782     append host_cflags $($host_cflags_filter "$@")
783 }
784
785 add_host_ldflags(){
786     append host_ldflags $($host_ldflags_filter "$@")
787 }
788
789 add_compat(){
790     append compat_objs $1
791     shift
792     map 'add_cppflags -D$v' "$@"
793 }
794
795 check_cmd(){
796     log "$@"
797     "$@" >> $logfile 2>&1
798 }
799
800 check_stat(){
801     log check_stat "$@"
802     stat "$1" >> $logfile 2>&1
803 }
804
805 cc_o(){
806     eval printf '%s\\n' $CC_O
807 }
808
809 cc_e(){
810     eval printf '%s\\n' $CC_E
811 }
812
813 check_cc(){
814     log check_cc "$@"
815     cat > $TMPC
816     log_file $TMPC
817     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
818 }
819
820 check_cxx(){
821     log check_cxx "$@"
822     cat > $TMPCPP
823     log_file $TMPCPP
824     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
825 }
826
827 check_oc(){
828     log check_oc "$@"
829     cat > $TMPM
830     log_file $TMPM
831     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
832 }
833
834 check_cpp(){
835     log check_cpp "$@"
836     cat > $TMPC
837     log_file $TMPC
838     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
839 }
840
841 as_o(){
842     eval printf '%s\\n' $AS_O
843 }
844
845 check_as(){
846     log check_as "$@"
847     cat > $TMPS
848     log_file $TMPS
849     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
850 }
851
852 check_inline_asm(){
853     log check_inline_asm "$@"
854     name="$1"
855     code="$2"
856     shift 2
857     disable $name
858     check_cc "$@" <<EOF && enable $name
859 void foo(void){ __asm__ volatile($code); }
860 EOF
861 }
862
863 check_insn(){
864     log check_insn "$@"
865     check_inline_asm ${1}_inline "\"$2\""
866     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
867 }
868
869 check_yasm(){
870     log check_yasm "$@"
871     echo "$1" > $TMPS
872     log_file $TMPS
873     shift 1
874     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
875 }
876
877 ld_o(){
878     eval printf '%s\\n' $LD_O
879 }
880
881 check_ld(){
882     log check_ld "$@"
883     type=$1
884     shift 1
885     flags=$(filter_out '-l*|*.so' $@)
886     libs=$(filter '-l*|*.so' $@)
887     check_$type $($cflags_filter $flags) || return
888     flags=$($ldflags_filter $flags)
889     libs=$($ldflags_filter $libs)
890     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
891 }
892
893 print_include(){
894     hdr=$1
895     test "${hdr%.h}" = "${hdr}" &&
896         echo "#include $hdr"    ||
897         echo "#include <$hdr>"
898 }
899
900 check_code(){
901     log check_code "$@"
902     check=$1
903     headers=$2
904     code=$3
905     shift 3
906     {
907         for hdr in $headers; do
908             print_include $hdr
909         done
910         echo "int main(void) { $code; return 0; }"
911     } | check_$check "$@"
912 }
913
914 check_cppflags(){
915     log check_cppflags "$@"
916     check_cc "$@" <<EOF && append CPPFLAGS "$@"
917 int x;
918 EOF
919 }
920
921 test_cflags(){
922     log test_cflags "$@"
923     set -- $($cflags_filter "$@")
924     check_cc "$@" <<EOF
925 int x;
926 EOF
927 }
928
929 check_cflags(){
930     log check_cflags "$@"
931     test_cflags "$@" && add_cflags "$@"
932 }
933
934 check_cxxflags(){
935     log check_cxxflags "$@"
936     set -- $($cflags_filter "$@")
937     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
938 int x;
939 EOF
940 }
941
942 test_ldflags(){
943     log test_ldflags "$@"
944     check_ld "cc" "$@" <<EOF
945 int main(void){ return 0; }
946 EOF
947 }
948
949 check_ldflags(){
950     log check_ldflags "$@"
951     test_ldflags "$@" && add_ldflags "$@"
952 }
953
954 test_stripflags(){
955     log test_stripflags "$@"
956     # call check_cc to get a fresh TMPO
957     check_cc <<EOF
958 int main(void) { return 0; }
959 EOF
960     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
961 }
962
963 check_stripflags(){
964     log check_stripflags "$@"
965     test_stripflags "$@" && add_stripflags "$@"
966 }
967
968 check_header(){
969     log check_header "$@"
970     header=$1
971     shift
972     disable_safe $header
973     check_cpp "$@" <<EOF && enable_safe $header
974 #include <$header>
975 int x;
976 EOF
977 }
978
979 check_header_oc(){
980     log check_header_oc "$@"
981     rm -f -- "$TMPO"
982     header=$1
983     shift
984     disable_safe $header
985     {
986        echo "#include <$header>"
987        echo "int main(void) { return 0; }"
988     } | check_oc && check_stat "$TMPO" && enable_safe $headers
989 }
990
991 check_func(){
992     log check_func "$@"
993     func=$1
994     shift
995     disable $func
996     check_ld "cc" "$@" <<EOF && enable $func
997 extern int $func();
998 int main(void){ $func(); }
999 EOF
1000 }
1001
1002 check_mathfunc(){
1003     log check_mathfunc "$@"
1004     func=$1
1005     narg=$2
1006     shift 2
1007     test $narg = 2 && args="f, g" || args="f"
1008     disable $func
1009     check_ld "cc" "$@" <<EOF && enable $func
1010 #include <math.h>
1011 float foo(float f, float g) { return $func($args); }
1012 int main(void){ return (int) foo; }
1013 EOF
1014 }
1015
1016 check_func_headers(){
1017     log check_func_headers "$@"
1018     headers=$1
1019     funcs=$2
1020     shift 2
1021     {
1022         for hdr in $headers; do
1023             print_include $hdr
1024         done
1025         for func in $funcs; do
1026             echo "long check_$func(void) { return (long) $func; }"
1027         done
1028         echo "int main(void) { return 0; }"
1029     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1030 }
1031
1032 check_class_headers_cpp(){
1033     log check_class_headers_cpp "$@"
1034     headers=$1
1035     classes=$2
1036     shift 2
1037     {
1038         for hdr in $headers; do
1039             echo "#include <$hdr>"
1040         done
1041         echo "int main(void) { "
1042         i=1
1043         for class in $classes; do
1044             echo "$class obj$i;"
1045             i=$(expr $i + 1)
1046         done
1047         echo "return 0; }"
1048     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1049 }
1050
1051 check_cpp_condition(){
1052     log check_cpp_condition "$@"
1053     header=$1
1054     condition=$2
1055     shift 2
1056     check_cpp "$@" <<EOF
1057 #include <$header>
1058 #if !($condition)
1059 #error "unsatisfied condition: $condition"
1060 #endif
1061 EOF
1062 }
1063
1064 check_lib(){
1065     log check_lib "$@"
1066     header="$1"
1067     func="$2"
1068     shift 2
1069     check_header $header && check_func $func "$@" && add_extralibs "$@"
1070 }
1071
1072 check_lib2(){
1073     log check_lib2 "$@"
1074     headers="$1"
1075     funcs="$2"
1076     shift 2
1077     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1078 }
1079
1080 check_lib_cpp(){
1081     log check_lib_cpp "$@"
1082     headers="$1"
1083     classes="$2"
1084     shift 2
1085     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1086 }
1087
1088 check_pkg_config(){
1089     log check_pkg_config "$@"
1090     pkgandversion="$1"
1091     pkg="${1%% *}"
1092     headers="$2"
1093     funcs="$3"
1094     shift 3
1095     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1096     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1097     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1098     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1099         set_safe ${pkg}_cflags $pkg_cflags   &&
1100         set_safe ${pkg}_libs   $pkg_libs
1101 }
1102
1103 check_exec(){
1104     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1105 }
1106
1107 check_exec_crash(){
1108     code=$(cat)
1109
1110     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1111     # are safe but may not be available everywhere.  Thus we use
1112     # raise(SIGTERM) instead.  The check is run in a subshell so we
1113     # can redirect the "Terminated" message from the shell.  SIGBUS
1114     # is not defined by standard C so it is used conditionally.
1115
1116     (check_exec "$@") >> $logfile 2>&1 <<EOF
1117 #include <signal.h>
1118 static void sighandler(int sig){
1119     raise(SIGTERM);
1120 }
1121 int foo(void){
1122     $code
1123 }
1124 int (*func_ptr)(void) = foo;
1125 int main(void){
1126     signal(SIGILL, sighandler);
1127     signal(SIGFPE, sighandler);
1128     signal(SIGSEGV, sighandler);
1129 #ifdef SIGBUS
1130     signal(SIGBUS, sighandler);
1131 #endif
1132     return func_ptr();
1133 }
1134 EOF
1135 }
1136
1137 check_type(){
1138     log check_type "$@"
1139     headers=$1
1140     type=$2
1141     shift 2
1142     disable_safe "$type"
1143     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1144 }
1145
1146 check_struct(){
1147     log check_struct "$@"
1148     headers=$1
1149     struct=$2
1150     member=$3
1151     shift 3
1152     disable_safe "${struct}_${member}"
1153     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1154         enable_safe "${struct}_${member}"
1155 }
1156
1157 check_builtin(){
1158     log check_builtin "$@"
1159     name=$1
1160     headers=$2
1161     builtin=$3
1162     shift 3
1163     disable "$name"
1164     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1165 }
1166
1167 check_compile_assert(){
1168     log check_compile_assert "$@"
1169     name=$1
1170     headers=$2
1171     condition=$3
1172     shift 3
1173     disable "$name"
1174     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1175 }
1176
1177 require(){
1178     name="$1"
1179     header="$2"
1180     func="$3"
1181     shift 3
1182     check_lib $header $func "$@" || die "ERROR: $name not found"
1183 }
1184
1185 require2(){
1186     name="$1"
1187     headers="$2"
1188     func="$3"
1189     shift 3
1190     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1191 }
1192
1193 require_cpp(){
1194     name="$1"
1195     headers="$2"
1196     classes="$3"
1197     shift 3
1198     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1199 }
1200
1201 require_pkg_config(){
1202     pkg="$1"
1203     check_pkg_config "$@" || die "ERROR: $pkg not found"
1204     add_cflags    $(get_safe ${pkg}_cflags)
1205     add_extralibs $(get_safe ${pkg}_libs)
1206 }
1207
1208 require_libfreetype(){
1209     log require_libfreetype "$@"
1210     pkg="freetype2"
1211     check_cmd $pkg_config --exists --print-errors $pkg \
1212       || die "ERROR: $pkg not found"
1213     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1214     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1215     {
1216         echo "#include <ft2build.h>"
1217         echo "#include FT_FREETYPE_H"
1218         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1219         echo "int main(void) { return 0; }"
1220     } | check_ld "cc" $pkg_cflags $pkg_libs \
1221       && set_safe ${pkg}_cflags $pkg_cflags \
1222       && set_safe ${pkg}_libs   $pkg_libs \
1223       || die "ERROR: $pkg not found"
1224     add_cflags    $(get_safe ${pkg}_cflags)
1225     add_extralibs $(get_safe ${pkg}_libs)
1226 }
1227
1228 hostcc_e(){
1229     eval printf '%s\\n' $HOSTCC_E
1230 }
1231
1232 hostcc_o(){
1233     eval printf '%s\\n' $HOSTCC_O
1234 }
1235
1236 check_host_cc(){
1237     log check_host_cc "$@"
1238     cat > $TMPC
1239     log_file $TMPC
1240     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1241 }
1242
1243 check_host_cpp(){
1244     log check_host_cpp "$@"
1245     cat > $TMPC
1246     log_file $TMPC
1247     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1248 }
1249
1250 check_host_cppflags(){
1251     log check_host_cppflags "$@"
1252     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1253 int x;
1254 EOF
1255 }
1256
1257 check_host_cflags(){
1258     log check_host_cflags "$@"
1259     set -- $($host_cflags_filter "$@")
1260     check_host_cc "$@" <<EOF && append host_cflags "$@"
1261 int x;
1262 EOF
1263 }
1264
1265 check_host_cpp_condition(){
1266     log check_host_cpp_condition "$@"
1267     header=$1
1268     condition=$2
1269     shift 2
1270     check_host_cpp "$@" <<EOF
1271 #include <$header>
1272 #if !($condition)
1273 #error "unsatisfied condition: $condition"
1274 #endif
1275 EOF
1276 }
1277
1278 apply(){
1279     file=$1
1280     shift
1281     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1282 }
1283
1284 cp_if_changed(){
1285     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1286     mkdir -p "$(dirname $2)"
1287     $cp_f "$1" "$2"
1288 }
1289
1290 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1291 # system-dependent things.
1292
1293 COMPONENT_LIST="
1294     bsfs
1295     decoders
1296     demuxers
1297     encoders
1298     filters
1299     hwaccels
1300     indevs
1301     muxers
1302     outdevs
1303     parsers
1304     protocols
1305 "
1306
1307 EXAMPLE_LIST="
1308     avio_reading_example
1309     decoding_encoding_example
1310     demuxing_decoding_example
1311     extract_mvs_example
1312     filter_audio_example
1313     filtering_audio_example
1314     filtering_video_example
1315     metadata_example
1316     muxing_example
1317     remuxing_example
1318     resampling_audio_example
1319     scaling_video_example
1320     transcode_aac_example
1321     transcoding_example
1322 "
1323
1324 EXTERNAL_LIBRARY_LIST="
1325     avisynth
1326     bzlib
1327     crystalhd
1328     decklink
1329     frei0r
1330     gnutls
1331     iconv
1332     ladspa
1333     libaacplus
1334     libass
1335     libbluray
1336     libbs2b
1337     libcaca
1338     libcdio
1339     libcelt
1340     libdc1394
1341     libfaac
1342     libfdk_aac
1343     libflite
1344     libfontconfig
1345     libfreetype
1346     libfribidi
1347     libgme
1348     libgsm
1349     libiec61883
1350     libilbc
1351     libmodplug
1352     libmp3lame
1353     libnut
1354     libopencore_amrnb
1355     libopencore_amrwb
1356     libopencv
1357     libopenjpeg
1358     libopus
1359     libpulse
1360     libquvi
1361     librtmp
1362     libschroedinger
1363     libshine
1364     libsmbclient
1365     libsoxr
1366     libspeex
1367     libssh
1368     libstagefright_h264
1369     libtheora
1370     libtwolame
1371     libutvideo
1372     libv4l2
1373     libvidstab
1374     libvo_aacenc
1375     libvo_amrwbenc
1376     libvorbis
1377     libvpx
1378     libwavpack
1379     libwebp
1380     libx264
1381     libx265
1382     libxavs
1383     libxvid
1384     libzmq
1385     libzvbi
1386     lzma
1387     openal
1388     opencl
1389     opengl
1390     openssl
1391     x11grab
1392     xlib
1393     zlib
1394 "
1395
1396 DOCUMENT_LIST="
1397     doc
1398     htmlpages
1399     manpages
1400     podpages
1401     txtpages
1402 "
1403
1404 FEATURE_LIST="
1405     ftrapv
1406     gray
1407     hardcoded_tables
1408     runtime_cpudetect
1409     safe_bitstream_reader
1410     shared
1411     small
1412     static
1413     swscale_alpha
1414 "
1415
1416 HWACCEL_LIST="
1417     dxva2
1418     vaapi
1419     vda
1420     vdpau
1421     xvmc
1422 "
1423
1424 LIBRARY_LIST="
1425     avcodec
1426     avdevice
1427     avfilter
1428     avformat
1429     avresample
1430     avutil
1431     postproc
1432     swresample
1433     swscale
1434 "
1435
1436 LICENSE_LIST="
1437     gpl
1438     nonfree
1439     version3
1440 "
1441
1442 PROGRAM_LIST="
1443     ffplay
1444     ffprobe
1445     ffserver
1446     ffmpeg
1447 "
1448
1449 SUBSYSTEM_LIST="
1450     dct
1451     dwt
1452     error_resilience
1453     faan
1454     fast_unaligned
1455     fft
1456     lsp
1457     lzo
1458     mdct
1459     pixelutils
1460     network
1461     rdft
1462 "
1463
1464 CONFIG_LIST="
1465     $COMPONENT_LIST
1466     $DOCUMENT_LIST
1467     $EXAMPLE_LIST
1468     $EXTERNAL_LIBRARY_LIST
1469     $FEATURE_LIST
1470     $HWACCEL_LIST
1471     $LICENSE_LIST
1472     $LIBRARY_LIST
1473     $PROGRAM_LIST
1474     $SUBSYSTEM_LIST
1475     fontconfig
1476     incompatible_libav_abi
1477     memalign_hack
1478     memory_poisoning
1479     neon_clobber_test
1480     pic
1481     pod2man
1482     raise_major
1483     thumb
1484     xmm_clobber_test
1485 "
1486
1487 THREADS_LIST="
1488     pthreads
1489     os2threads
1490     w32threads
1491 "
1492
1493 ATOMICS_LIST="
1494     atomics_gcc
1495     atomics_suncc
1496     atomics_win32
1497 "
1498
1499 ARCH_LIST="
1500     aarch64
1501     alpha
1502     arm
1503     avr32
1504     avr32_ap
1505     avr32_uc
1506     bfin
1507     ia64
1508     m68k
1509     mips
1510     mips64
1511     parisc
1512     ppc
1513     ppc64
1514     s390
1515     sh4
1516     sparc
1517     sparc64
1518     tilegx
1519     tilepro
1520     tomi
1521     x86
1522     x86_32
1523     x86_64
1524 "
1525
1526 ARCH_EXT_LIST_ARM="
1527     armv5te
1528     armv6
1529     armv6t2
1530     armv8
1531     neon
1532     vfp
1533     vfpv3
1534     setend
1535 "
1536
1537 ARCH_EXT_LIST_MIPS="
1538     mipsfpu
1539     mips32r2
1540     mipsdspr1
1541     mipsdspr2
1542 "
1543
1544 ARCH_EXT_LIST_X86_SIMD="
1545     amd3dnow
1546     amd3dnowext
1547     avx
1548     avx2
1549     fma3
1550     fma4
1551     mmx
1552     mmxext
1553     sse
1554     sse2
1555     sse3
1556     sse4
1557     sse42
1558     ssse3
1559     xop
1560 "
1561
1562 ARCH_EXT_LIST_PPC="
1563     altivec
1564     dcbzl
1565     ldbrx
1566     ppc4xx
1567     vsx
1568 "
1569
1570 ARCH_EXT_LIST_X86="
1571     $ARCH_EXT_LIST_X86_SIMD
1572     cpunop
1573     i686
1574 "
1575
1576 ARCH_EXT_LIST="
1577     $ARCH_EXT_LIST_ARM
1578     $ARCH_EXT_LIST_PPC
1579     $ARCH_EXT_LIST_X86
1580     $ARCH_EXT_LIST_MIPS
1581     loongson
1582 "
1583
1584 ARCH_FEATURES="
1585     aligned_stack
1586     fast_64bit
1587     fast_clz
1588     fast_cmov
1589     local_aligned_8
1590     local_aligned_16
1591     local_aligned_32
1592     simd_align_16
1593 "
1594
1595 BUILTIN_LIST="
1596     atomic_cas_ptr
1597     machine_rw_barrier
1598     MemoryBarrier
1599     mm_empty
1600     rdtsc
1601     sarestart
1602     sync_val_compare_and_swap
1603 "
1604 HAVE_LIST_CMDLINE="
1605     inline_asm
1606     symver
1607     yasm
1608 "
1609
1610 HAVE_LIST_PUB="
1611     bigendian
1612     fast_unaligned
1613     incompatible_libav_abi
1614 "
1615
1616 HEADERS_LIST="
1617     alsa_asoundlib_h
1618     altivec_h
1619     arpa_inet_h
1620     asm_types_h
1621     cdio_paranoia_h
1622     cdio_paranoia_paranoia_h
1623     CL_cl_h
1624     dev_bktr_ioctl_bt848_h
1625     dev_bktr_ioctl_meteor_h
1626     dev_ic_bt8xx_h
1627     dev_video_bktr_ioctl_bt848_h
1628     dev_video_meteor_ioctl_meteor_h
1629     direct_h
1630     dlfcn_h
1631     dxva_h
1632     ES2_gl_h
1633     gsm_h
1634     io_h
1635     mach_mach_time_h
1636     machine_ioctl_bt848_h
1637     machine_ioctl_meteor_h
1638     malloc_h
1639     openjpeg_1_5_openjpeg_h
1640     OpenGL_gl3_h
1641     poll_h
1642     sndio_h
1643     soundcard_h
1644     sys_mman_h
1645     sys_param_h
1646     sys_resource_h
1647     sys_select_h
1648     sys_soundcard_h
1649     sys_time_h
1650     sys_un_h
1651     sys_videoio_h
1652     termios_h
1653     unistd_h
1654     windows_h
1655     winsock2_h
1656 "
1657
1658 INTRINSICS_LIST="
1659     intrinsics_neon
1660 "
1661
1662 MATH_FUNCS="
1663     atanf
1664     atan2f
1665     cbrt
1666     cbrtf
1667     cosf
1668     exp2
1669     exp2f
1670     expf
1671     fminf
1672     isinf
1673     isnan
1674     ldexpf
1675     llrint
1676     llrintf
1677     log2
1678     log2f
1679     log10f
1680     lrint
1681     lrintf
1682     powf
1683     rint
1684     round
1685     roundf
1686     sinf
1687     trunc
1688     truncf
1689 "
1690
1691 SYSTEM_FUNCS="
1692     access
1693     aligned_malloc
1694     clock_gettime
1695     closesocket
1696     CommandLineToArgvW
1697     CoTaskMemFree
1698     CryptGenRandom
1699     dlopen
1700     fcntl
1701     flt_lim
1702     fork
1703     getaddrinfo
1704     gethrtime
1705     getopt
1706     GetProcessAffinityMask
1707     GetProcessMemoryInfo
1708     GetProcessTimes
1709     getrusage
1710     getservbyport
1711     GetSystemTimeAsFileTime
1712     gettimeofday
1713     glob
1714     glXGetProcAddress
1715     inet_aton
1716     isatty
1717     jack_port_get_latency_range
1718     kbhit
1719     localtime_r
1720     lzo1x_999_compress
1721     mach_absolute_time
1722     MapViewOfFile
1723     memalign
1724     mkstemp
1725     mmap
1726     mprotect
1727     nanosleep
1728     PeekNamedPipe
1729     posix_memalign
1730     pthread_cancel
1731     sched_getaffinity
1732     SetConsoleTextAttribute
1733     setmode
1734     setrlimit
1735     Sleep
1736     strerror_r
1737     sysconf
1738     sysctl
1739     usleep
1740     VirtualAlloc
1741     wglGetProcAddress
1742 "
1743
1744 TOOLCHAIN_FEATURES="
1745     as_dn_directive
1746     as_func
1747     asm_mod_q
1748     attribute_may_alias
1749     attribute_packed
1750     ebp_available
1751     ebx_available
1752     gnu_as
1753     gnu_windres
1754     ibm_asm
1755     inline_asm_labels
1756     inline_asm_nonlocal_labels
1757     inline_asm_direct_symbol_refs
1758     pragma_deprecated
1759     rsync_contimeout
1760     symver_asm_label
1761     symver_gnu_asm
1762     vfp_args
1763     xform_asm
1764     xmm_clobbers
1765 "
1766
1767 TYPES_LIST="
1768     socklen_t
1769     struct_addrinfo
1770     struct_group_source_req
1771     struct_ip_mreq_source
1772     struct_ipv6_mreq
1773     struct_pollfd
1774     struct_rusage_ru_maxrss
1775     struct_sctp_event_subscribe
1776     struct_sockaddr_in6
1777     struct_sockaddr_sa_len
1778     struct_sockaddr_storage
1779     struct_stat_st_mtim_tv_nsec
1780     struct_v4l2_frmivalenum_discrete
1781 "
1782
1783 HAVE_LIST="
1784     $ARCH_EXT_LIST
1785     $(add_suffix _external $ARCH_EXT_LIST)
1786     $(add_suffix _inline   $ARCH_EXT_LIST)
1787     $ARCH_FEATURES
1788     $ATOMICS_LIST
1789     $BUILTIN_LIST
1790     $HAVE_LIST_CMDLINE
1791     $HAVE_LIST_PUB
1792     $HEADERS_LIST
1793     $INTRINSICS_LIST
1794     $MATH_FUNCS
1795     $SYSTEM_FUNCS
1796     $THREADS_LIST
1797     $TOOLCHAIN_FEATURES
1798     $TYPES_LIST
1799     atomics_native
1800     dos_paths
1801     dxva2api_cobj
1802     dxva2_lib
1803     libc_msvcrt
1804     libdc1394_1
1805     libdc1394_2
1806     makeinfo
1807     makeinfo_html
1808     perl
1809     pod2man
1810     sdl
1811     texi2html
1812     threads
1813     vdpau_x11
1814     xlib
1815 "
1816
1817 # options emitted with CONFIG_ prefix but not available on the command line
1818 CONFIG_EXTRA="
1819     aandcttables
1820     ac3dsp
1821     audio_frame_queue
1822     audiodsp
1823     blockdsp
1824     bswapdsp
1825     cabac
1826     dvprofile
1827     exif
1828     faandct
1829     faanidct
1830     fdctdsp
1831     frame_thread_encoder
1832     gcrypt
1833     golomb
1834     gplv3
1835     h263dsp
1836     h264chroma
1837     h264dsp
1838     h264pred
1839     h264qpel
1840     hpeldsp
1841     huffman
1842     huffyuvdsp
1843     huffyuvencdsp
1844     idctdsp
1845     iirfilter
1846     intrax8
1847     lgplv3
1848     llauddsp
1849     llviddsp
1850     lpc
1851     me_cmp
1852     mpeg_er
1853     mpegaudio
1854     mpegaudiodsp
1855     mpegvideo
1856     mpegvideoenc
1857     nettle
1858     pixblockdsp
1859     qpeldsp
1860     rangecoder
1861     riffdec
1862     riffenc
1863     rtpdec
1864     rtpenc_chain
1865     sinewin
1866     startcode
1867     tpeldsp
1868     videodsp
1869     vp3dsp
1870     wma_freqs
1871 "
1872
1873 CMDLINE_SELECT="
1874     $ARCH_EXT_LIST
1875     $CONFIG_LIST
1876     $HAVE_LIST_CMDLINE
1877     $THREADS_LIST
1878     asm
1879     cross_compile
1880     debug
1881     extra_warnings
1882     logging
1883     lto
1884     optimizations
1885     rpath
1886     stripping
1887 "
1888
1889 PATHS_LIST="
1890     bindir
1891     datadir
1892     docdir
1893     incdir
1894     libdir
1895     mandir
1896     prefix
1897     shlibdir
1898 "
1899
1900 CMDLINE_SET="
1901     $PATHS_LIST
1902     ar
1903     arch
1904     as
1905     assert_level
1906     build_suffix
1907     cc
1908     cpu
1909     cross_prefix
1910     cxx
1911     dep_cc
1912     doxygen
1913     extra_version
1914     gas
1915     host_cc
1916     host_cflags
1917     host_ld
1918     host_ldflags
1919     host_libs
1920     host_os
1921     install
1922     ld
1923     logfile
1924     malloc_prefix
1925     nm
1926     optflags
1927     pkg_config
1928     pkg_config_flags
1929     progs_suffix
1930     random_seed
1931     ranlib
1932     samples
1933     strip
1934     sws_max_filter_size
1935     sysinclude
1936     sysroot
1937     target_exec
1938     target_os
1939     target_path
1940     target_samples
1941     tempprefix
1942     toolchain
1943     valgrind
1944     yasmexe
1945 "
1946
1947 CMDLINE_APPEND="
1948     extra_cflags
1949     extra_cxxflags
1950     host_cppflags
1951 "
1952
1953 # code dependency declarations
1954
1955 # architecture extensions
1956
1957 armv5te_deps="arm"
1958 armv6_deps="arm"
1959 armv6t2_deps="arm"
1960 armv8_deps="aarch64"
1961 neon_deps_any="aarch64 arm"
1962 intrinsics_neon_deps="neon"
1963 vfp_deps_any="aarch64 arm"
1964 vfpv3_deps="vfp"
1965 setend_deps="arm"
1966
1967 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1968
1969 mipsfpu_deps="mips"
1970 mips32r2_deps="mips"
1971 mipsdspr1_deps="mips"
1972 mipsdspr2_deps="mips"
1973
1974 altivec_deps="ppc"
1975 ppc4xx_deps="ppc"
1976 vsx_deps="ppc"
1977
1978 cpunop_deps="i686"
1979 x86_64_select="i686"
1980 x86_64_suggest="fast_cmov"
1981
1982 amd3dnow_deps="mmx"
1983 amd3dnowext_deps="amd3dnow"
1984 i686_deps="x86"
1985 mmx_deps="x86"
1986 mmxext_deps="mmx"
1987 sse_deps="mmxext"
1988 sse2_deps="sse"
1989 sse3_deps="sse2"
1990 ssse3_deps="sse3"
1991 sse4_deps="ssse3"
1992 sse42_deps="sse4"
1993 avx_deps="sse42"
1994 xop_deps="avx"
1995 fma3_deps="avx"
1996 fma4_deps="avx"
1997 avx2_deps="avx"
1998
1999 mmx_external_deps="yasm"
2000 mmx_inline_deps="inline_asm"
2001 mmx_suggest="mmx_external mmx_inline"
2002
2003 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2004     eval dep=\$${ext}_deps
2005     eval ${ext}_external_deps='"${dep}_external"'
2006     eval ${ext}_inline_deps='"${dep}_inline"'
2007     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2008 done
2009
2010 aligned_stack_if_any="aarch64 ppc x86"
2011 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2012 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2013 fast_unaligned_if_any="aarch64 ppc x86"
2014 simd_align_16_if_any="altivec neon sse"
2015
2016 # system capabilities
2017
2018 symver_if_any="symver_asm_label symver_gnu_asm"
2019
2020 # threading support
2021 atomics_gcc_if="sync_val_compare_and_swap"
2022 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2023 atomics_win32_if="MemoryBarrier"
2024 atomics_native_if_any="$ATOMICS_LIST"
2025 w32threads_deps="atomics_native"
2026 threads_if_any="$THREADS_LIST"
2027
2028 # subsystems
2029 dct_select="rdft"
2030 error_resilience_select="me_cmp"
2031 faandct_deps="faan fdctdsp"
2032 faanidct_deps="faan idctdsp"
2033 frame_thread_encoder_deps="encoders threads"
2034 intrax8_select="error_resilience"
2035 mdct_select="fft"
2036 rdft_select="fft"
2037 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2038 mpeg_er_select="error_resilience"
2039 mpegaudio_select="mpegaudiodsp"
2040 mpegaudiodsp_select="dct"
2041 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2042 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2043
2044 # decoders / encoders
2045 aac_decoder_select="mdct sinewin"
2046 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2047 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2048 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2049 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2050 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2051 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2052 aic_decoder_select="golomb idctdsp"
2053 alac_encoder_select="lpc"
2054 als_decoder_select="bswapdsp"
2055 amrnb_decoder_select="lsp"
2056 amrwb_decoder_select="lsp"
2057 amv_decoder_select="sp5x_decoder exif"
2058 amv_encoder_select="aandcttables mpegvideoenc"
2059 ape_decoder_select="bswapdsp llauddsp"
2060 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2061 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2062 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2063 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2064 atrac1_decoder_select="mdct sinewin"
2065 atrac3_decoder_select="mdct"
2066 atrac3p_decoder_select="mdct sinewin"
2067 avrn_decoder_select="exif"
2068 bink_decoder_select="blockdsp hpeldsp"
2069 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2070 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2071 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2072 cllc_decoder_select="bswapdsp"
2073 comfortnoise_encoder_select="lpc"
2074 cook_decoder_select="audiodsp mdct sinewin"
2075 cscd_decoder_select="lzo"
2076 cscd_decoder_suggest="zlib"
2077 dca_decoder_select="mdct"
2078 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2079 dnxhd_decoder_select="blockdsp idctdsp"
2080 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2081 dvvideo_decoder_select="dvprofile idctdsp"
2082 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2083 dxa_decoder_select="zlib"
2084 eac3_decoder_select="ac3_decoder"
2085 eac3_encoder_select="ac3_encoder"
2086 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2087 eatgq_decoder_select="aandcttables"
2088 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2089 exr_decoder_select="zlib"
2090 ffv1_decoder_select="golomb rangecoder"
2091 ffv1_encoder_select="rangecoder"
2092 ffvhuff_decoder_select="huffyuv_decoder"
2093 ffvhuff_encoder_select="huffyuv_encoder"
2094 fic_decoder_select="golomb"
2095 flac_decoder_select="golomb"
2096 flac_encoder_select="bswapdsp golomb lpc"
2097 flashsv_decoder_select="zlib"
2098 flashsv_encoder_select="zlib"
2099 flashsv2_encoder_select="zlib"
2100 flashsv2_decoder_select="zlib"
2101 flv_decoder_select="h263_decoder"
2102 flv_encoder_select="h263_encoder"
2103 fourxm_decoder_select="blockdsp bswapdsp"
2104 fraps_decoder_select="bswapdsp huffman"
2105 g2m_decoder_select="blockdsp idctdsp zlib"
2106 g729_decoder_select="audiodsp"
2107 h261_decoder_select="mpeg_er mpegvideo"
2108 h261_encoder_select="aandcttables mpegvideoenc"
2109 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2110 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2111 h263i_decoder_select="h263_decoder"
2112 h263p_encoder_select="h263_encoder"
2113 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2114 h264_decoder_suggest="error_resilience"
2115 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2116 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2117 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2118 iac_decoder_select="imc_decoder"
2119 imc_decoder_select="bswapdsp fft mdct sinewin"
2120 indeo3_decoder_select="hpeldsp"
2121 interplay_video_decoder_select="hpeldsp"
2122 jpegls_decoder_select="golomb mjpeg_decoder"
2123 jpegls_encoder_select="golomb"
2124 jv_decoder_select="blockdsp"
2125 lagarith_decoder_select="huffyuvdsp"
2126 ljpeg_encoder_select="aandcttables idctdsp"
2127 loco_decoder_select="golomb"
2128 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2129 metasound_decoder_select="lsp mdct sinewin"
2130 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2131 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2132 mjpeg_encoder_select="aandcttables mpegvideoenc"
2133 mjpegb_decoder_select="mjpeg_decoder"
2134 mlp_decoder_select="mlp_parser"
2135 motionpixels_decoder_select="bswapdsp"
2136 mp1_decoder_select="mpegaudio"
2137 mp1float_decoder_select="mpegaudio"
2138 mp2_decoder_select="mpegaudio"
2139 mp2float_decoder_select="mpegaudio"
2140 mp3_decoder_select="mpegaudio"
2141 mp3adu_decoder_select="mpegaudio"
2142 mp3adufloat_decoder_select="mpegaudio"
2143 mp3float_decoder_select="mpegaudio"
2144 mp3on4_decoder_select="mpegaudio"
2145 mp3on4float_decoder_select="mpegaudio"
2146 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2147 mpc8_decoder_select="mpegaudiodsp"
2148 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2149 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2150 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2151 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2152 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2153 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2154 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2155 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2156 mpeg4_encoder_select="h263_encoder"
2157 msmpeg4v1_decoder_select="h263_decoder"
2158 msmpeg4v2_decoder_select="h263_decoder"
2159 msmpeg4v2_encoder_select="h263_encoder"
2160 msmpeg4v3_decoder_select="h263_decoder"
2161 msmpeg4v3_encoder_select="h263_encoder"
2162 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2163 mxpeg_decoder_select="mjpeg_decoder"
2164 nellymoser_decoder_select="mdct sinewin"
2165 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2166 nuv_decoder_select="idctdsp lzo"
2167 on2avc_decoder_select="mdct"
2168 opus_decoder_deps="swresample"
2169 png_decoder_select="zlib"
2170 png_encoder_select="huffyuvencdsp zlib"
2171 prores_decoder_select="blockdsp idctdsp"
2172 prores_encoder_select="fdctdsp"
2173 qcelp_decoder_select="lsp"
2174 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2175 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2176 ra_144_decoder_select="audiodsp"
2177 ralf_decoder_select="golomb"
2178 rawvideo_decoder_select="bswapdsp"
2179 rtjpeg_decoder_select="me_cmp"
2180 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2181 rv10_encoder_select="h263_encoder"
2182 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2183 rv20_encoder_select="h263_encoder"
2184 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2185 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2186 shorten_decoder_select="golomb"
2187 sipr_decoder_select="lsp"
2188 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2189 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2190 sonic_decoder_select="golomb rangecoder"
2191 sonic_encoder_select="golomb rangecoder"
2192 sonic_ls_encoder_select="golomb rangecoder"
2193 sp5x_decoder_select="mjpeg_decoder"
2194 svq1_decoder_select="hpeldsp"
2195 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2196 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2197 svq3_decoder_suggest="zlib"
2198 tak_decoder_select="audiodsp"
2199 theora_decoder_select="vp3_decoder"
2200 thp_decoder_select="mjpeg_decoder"
2201 tiff_decoder_suggest="zlib lzma"
2202 tiff_encoder_suggest="zlib"
2203 truehd_decoder_select="mlp_parser"
2204 truemotion2_decoder_select="bswapdsp"
2205 truespeech_decoder_select="bswapdsp"
2206 tscc_decoder_select="zlib"
2207 twinvq_decoder_select="mdct lsp sinewin"
2208 utvideo_decoder_select="bswapdsp"
2209 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2210 vble_decoder_select="huffyuvdsp"
2211 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2212 vc1image_decoder_select="vc1_decoder"
2213 vorbis_decoder_select="mdct"
2214 vorbis_encoder_select="mdct"
2215 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2216 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2217 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2218 vp6a_decoder_select="vp6_decoder"
2219 vp6f_decoder_select="vp6_decoder"
2220 vp7_decoder_select="h264pred videodsp"
2221 vp8_decoder_select="h264pred videodsp"
2222 vp9_decoder_select="videodsp vp9_parser"
2223 webp_decoder_select="vp8_decoder"
2224 wmalossless_decoder_select="llauddsp"
2225 wmapro_decoder_select="mdct sinewin wma_freqs"
2226 wmav1_decoder_select="mdct sinewin wma_freqs"
2227 wmav1_encoder_select="mdct sinewin wma_freqs"
2228 wmav2_decoder_select="mdct sinewin wma_freqs"
2229 wmav2_encoder_select="mdct sinewin wma_freqs"
2230 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2231 wmv1_decoder_select="h263_decoder"
2232 wmv1_encoder_select="h263_encoder"
2233 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2234 wmv2_encoder_select="h263_encoder"
2235 wmv3_decoder_select="vc1_decoder"
2236 wmv3image_decoder_select="wmv3_decoder"
2237 zerocodec_decoder_select="zlib"
2238 zlib_decoder_select="zlib"
2239 zlib_encoder_select="zlib"
2240 zmbv_decoder_select="zlib"
2241 zmbv_encoder_select="zlib"
2242
2243 # hardware accelerators
2244 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2245 dxva2_deps="dxva2api_h"
2246 vaapi_deps="va_va_h"
2247 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2248 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2249 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2250 xvmc_deps="X11_extensions_XvMClib_h"
2251
2252 h263_vaapi_hwaccel_deps="vaapi"
2253 h263_vaapi_hwaccel_select="h263_decoder"
2254 h263_vdpau_hwaccel_deps="vdpau"
2255 h263_vdpau_hwaccel_select="h263_decoder"
2256 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2257 h264_dxva2_hwaccel_deps="dxva2"
2258 h264_dxva2_hwaccel_select="h264_decoder"
2259 h264_vaapi_hwaccel_deps="vaapi"
2260 h264_vaapi_hwaccel_select="h264_decoder"
2261 h264_vda_decoder_deps="vda"
2262 h264_vda_decoder_select="h264_decoder"
2263 h264_vda_hwaccel_deps="vda"
2264 h264_vda_hwaccel_select="h264_decoder"
2265 h264_vda_old_hwaccel_deps="vda"
2266 h264_vda_old_hwaccel_select="h264_decoder"
2267 h264_vdpau_decoder_deps="vdpau"
2268 h264_vdpau_decoder_select="h264_decoder"
2269 h264_vdpau_hwaccel_deps="vdpau"
2270 h264_vdpau_hwaccel_select="h264_decoder"
2271 mpeg_vdpau_decoder_deps="vdpau"
2272 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2273 mpeg_xvmc_hwaccel_deps="xvmc"
2274 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2275 mpeg1_vdpau_decoder_deps="vdpau"
2276 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2277 mpeg1_vdpau_hwaccel_deps="vdpau"
2278 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2279 mpeg1_xvmc_hwaccel_deps="xvmc"
2280 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2281 mpeg2_crystalhd_decoder_select="crystalhd"
2282 mpeg2_dxva2_hwaccel_deps="dxva2"
2283 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2284 mpeg2_vaapi_hwaccel_deps="vaapi"
2285 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2286 mpeg2_vdpau_hwaccel_deps="vdpau"
2287 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2288 mpeg2_xvmc_hwaccel_deps="xvmc"
2289 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2290 mpeg4_crystalhd_decoder_select="crystalhd"
2291 mpeg4_vaapi_hwaccel_deps="vaapi"
2292 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2293 mpeg4_vdpau_decoder_deps="vdpau"
2294 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2295 mpeg4_vdpau_hwaccel_deps="vdpau"
2296 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2297 msmpeg4_crystalhd_decoder_select="crystalhd"
2298 vc1_crystalhd_decoder_select="crystalhd"
2299 vc1_dxva2_hwaccel_deps="dxva2"
2300 vc1_dxva2_hwaccel_select="vc1_decoder"
2301 vc1_vaapi_hwaccel_deps="vaapi"
2302 vc1_vaapi_hwaccel_select="vc1_decoder"
2303 vc1_vdpau_decoder_deps="vdpau"
2304 vc1_vdpau_decoder_select="vc1_decoder"
2305 vc1_vdpau_hwaccel_deps="vdpau"
2306 vc1_vdpau_hwaccel_select="vc1_decoder"
2307 wmv3_crystalhd_decoder_select="crystalhd"
2308 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2309 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2310 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2311 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2312
2313 # parsers
2314 h264_parser_select="h264_decoder"
2315 hevc_parser_select="hevc_decoder"
2316 mpegvideo_parser_select="mpegvideo"
2317 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2318 vc1_parser_select="mpegvideo startcode vc1_decoder"
2319
2320 # external libraries
2321 libaacplus_encoder_deps="libaacplus"
2322 libcelt_decoder_deps="libcelt"
2323 libfaac_encoder_deps="libfaac"
2324 libfaac_encoder_select="audio_frame_queue"
2325 libfdk_aac_decoder_deps="libfdk_aac"
2326 libfdk_aac_encoder_deps="libfdk_aac"
2327 libfdk_aac_encoder_select="audio_frame_queue"
2328 libgme_demuxer_deps="libgme"
2329 libgsm_decoder_deps="libgsm"
2330 libgsm_encoder_deps="libgsm"
2331 libgsm_ms_decoder_deps="libgsm"
2332 libgsm_ms_encoder_deps="libgsm"
2333 libilbc_decoder_deps="libilbc"
2334 libilbc_encoder_deps="libilbc"
2335 libmodplug_demuxer_deps="libmodplug"
2336 libmp3lame_encoder_deps="libmp3lame"
2337 libmp3lame_encoder_select="audio_frame_queue"
2338 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2339 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2340 libopencore_amrnb_encoder_select="audio_frame_queue"
2341 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2342 libopenjpeg_decoder_deps="libopenjpeg"
2343 libopenjpeg_encoder_deps="libopenjpeg"
2344 libopus_decoder_deps="libopus"
2345 libopus_encoder_deps="libopus"
2346 libopus_encoder_select="audio_frame_queue"
2347 libquvi_demuxer_deps="libquvi"
2348 libschroedinger_decoder_deps="libschroedinger"
2349 libschroedinger_encoder_deps="libschroedinger"
2350 libshine_encoder_deps="libshine"
2351 libshine_encoder_select="audio_frame_queue"
2352 libspeex_decoder_deps="libspeex"
2353 libspeex_encoder_deps="libspeex"
2354 libspeex_encoder_select="audio_frame_queue"
2355 libstagefright_h264_decoder_deps="libstagefright_h264"
2356 libtheora_encoder_deps="libtheora"
2357 libtwolame_encoder_deps="libtwolame"
2358 libvo_aacenc_encoder_deps="libvo_aacenc"
2359 libvo_aacenc_encoder_select="audio_frame_queue"
2360 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2361 libvorbis_decoder_deps="libvorbis"
2362 libvorbis_encoder_deps="libvorbis"
2363 libvorbis_encoder_select="audio_frame_queue"
2364 libvpx_vp8_decoder_deps="libvpx"
2365 libvpx_vp8_encoder_deps="libvpx"
2366 libvpx_vp9_decoder_deps="libvpx"
2367 libvpx_vp9_encoder_deps="libvpx"
2368 libwavpack_encoder_deps="libwavpack"
2369 libwebp_encoder_deps="libwebp"
2370 libx264_encoder_deps="libx264"
2371 libx264rgb_encoder_deps="libx264"
2372 libx265_encoder_deps="libx265"
2373 libxavs_encoder_deps="libxavs"
2374 libxvid_encoder_deps="libxvid"
2375 libutvideo_decoder_deps="libutvideo"
2376 libutvideo_encoder_deps="libutvideo"
2377 libzvbi_teletext_decoder_deps="libzvbi"
2378
2379 # demuxers / muxers
2380 ac3_demuxer_select="ac3_parser"
2381 asf_demuxer_select="riffdec"
2382 asf_muxer_select="riffenc"
2383 asf_stream_muxer_select="asf_muxer"
2384 avi_demuxer_select="riffdec exif"
2385 avi_muxer_select="riffenc"
2386 avisynth_demuxer_deps="avisynth"
2387 avisynth_demuxer_select="riffdec"
2388 caf_demuxer_select="riffdec"
2389 dirac_demuxer_select="dirac_parser"
2390 dts_demuxer_select="dca_parser"
2391 dtshd_demuxer_select="dca_parser"
2392 dv_demuxer_select="dvprofile"
2393 dv_muxer_select="dvprofile"
2394 dxa_demuxer_select="riffdec"
2395 eac3_demuxer_select="ac3_parser"
2396 f4v_muxer_select="mov_muxer"
2397 flac_demuxer_select="flac_parser"
2398 hds_muxer_select="flv_muxer"
2399 hls_muxer_select="mpegts_muxer"
2400 image2_alias_pix_demuxer_select="image2_demuxer"
2401 image2_brender_pix_demuxer_select="image2_demuxer"
2402 ipod_muxer_select="mov_muxer"
2403 ismv_muxer_select="mov_muxer"
2404 libnut_demuxer_deps="libnut"
2405 libnut_muxer_deps="libnut"
2406 matroska_audio_muxer_select="matroska_muxer"
2407 matroska_demuxer_select="riffdec"
2408 matroska_demuxer_suggest="bzlib lzo zlib"
2409 matroska_muxer_select="riffenc"
2410 mmf_muxer_select="riffenc"
2411 mov_demuxer_select="riffdec"
2412 mov_demuxer_suggest="zlib"
2413 mov_muxer_select="riffenc rtpenc_chain"
2414 mp3_demuxer_select="mpegaudio_parser"
2415 mp4_muxer_select="mov_muxer"
2416 mpegts_muxer_select="adts_muxer latm_muxer"
2417 mpegtsraw_demuxer_select="mpegts_demuxer"
2418 mxf_d10_muxer_select="mxf_muxer"
2419 nut_muxer_select="riffenc"
2420 nuv_demuxer_select="riffdec"
2421 oga_muxer_select="ogg_muxer"
2422 ogg_demuxer_select="golomb"
2423 opus_muxer_select="ogg_muxer"
2424 psp_muxer_select="mov_muxer"
2425 rtp_demuxer_select="sdp_demuxer"
2426 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2427 rtsp_demuxer_select="http_protocol rtpdec"
2428 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2429 sap_demuxer_select="sdp_demuxer"
2430 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2431 sdp_demuxer_select="rtpdec"
2432 smoothstreaming_muxer_select="ismv_muxer"
2433 spdif_muxer_select="aac_parser"
2434 spx_muxer_select="ogg_muxer"
2435 tak_demuxer_select="tak_parser"
2436 tg2_muxer_select="mov_muxer"
2437 tgp_muxer_select="mov_muxer"
2438 vobsub_demuxer_select="mpegps_demuxer"
2439 w64_demuxer_select="wav_demuxer"
2440 w64_muxer_select="wav_muxer"
2441 wav_demuxer_select="riffdec"
2442 wav_muxer_select="riffenc"
2443 webm_muxer_select="riffenc"
2444 wtv_demuxer_select="riffdec"
2445 wtv_muxer_select="riffenc"
2446 xmv_demuxer_select="riffdec"
2447 xwma_demuxer_select="riffdec"
2448
2449 # indevs / outdevs
2450 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2451 alsa_outdev_deps="alsa_asoundlib_h"
2452 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2453 avfoundation_indev_select="avfoundation"
2454 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2455 caca_outdev_deps="libcaca"
2456 decklink_outdev_deps="decklink pthreads"
2457 decklink_outdev_extralibs="-lstdc++"
2458 decklink_indev_deps="decklink pthreads"
2459 decklink_indev_extralibs="-lstdc++"
2460 dshow_indev_deps="IBaseFilter"
2461 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2462 dv1394_indev_deps="dv1394"
2463 dv1394_indev_select="dv_demuxer"
2464 fbdev_indev_deps="linux_fb_h"
2465 fbdev_outdev_deps="linux_fb_h"
2466 gdigrab_indev_deps="CreateDIBSection"
2467 gdigrab_indev_extralibs="-lgdi32"
2468 gdigrab_indev_select="bmp_decoder"
2469 iec61883_indev_deps="libiec61883"
2470 jack_indev_deps="jack_jack_h sem_timedwait"
2471 lavfi_indev_deps="avfilter"
2472 libcdio_indev_deps="libcdio"
2473 libdc1394_indev_deps="libdc1394"
2474 libv4l2_indev_deps="libv4l2"
2475 openal_indev_deps="openal"
2476 opengl_outdev_deps="opengl"
2477 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2478 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2479 pulse_indev_deps="libpulse"
2480 pulse_outdev_deps="libpulse"
2481 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2482 qtkit_indev_select="qtkit"
2483 sdl_outdev_deps="sdl"
2484 sndio_indev_deps="sndio_h"
2485 sndio_outdev_deps="sndio_h"
2486 v4l_indev_deps="linux_videodev_h"
2487 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2488 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2489 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2490 vfwcap_indev_extralibs="-lavicap32"
2491 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2492 xv_outdev_extralibs="-lXv -lX11 -lXext"
2493 x11grab_indev_deps="x11grab"
2494
2495 # protocols
2496 bluray_protocol_deps="libbluray"
2497 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2498 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2499 ffrtmpcrypt_protocol_select="tcp_protocol"
2500 ffrtmphttp_protocol_deps="!librtmp_protocol"
2501 ffrtmphttp_protocol_select="http_protocol"
2502 ftp_protocol_select="tcp_protocol"
2503 gopher_protocol_select="network"
2504 http_protocol_select="tcp_protocol"
2505 httpproxy_protocol_select="tcp_protocol"
2506 https_protocol_select="tls_protocol"
2507 icecast_protocol_select="http_protocol"
2508 librtmp_protocol_deps="librtmp"
2509 librtmpe_protocol_deps="librtmp"
2510 librtmps_protocol_deps="librtmp"
2511 librtmpt_protocol_deps="librtmp"
2512 librtmpte_protocol_deps="librtmp"
2513 libsmbclient_protocol_deps="libsmbclient gplv3"
2514 libssh_protocol_deps="libssh"
2515 mmsh_protocol_select="http_protocol"
2516 mmst_protocol_select="network"
2517 rtmp_protocol_deps="!librtmp_protocol"
2518 rtmp_protocol_select="tcp_protocol"
2519 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2520 rtmps_protocol_deps="!librtmp_protocol"
2521 rtmps_protocol_select="tls_protocol"
2522 rtmpt_protocol_select="ffrtmphttp_protocol"
2523 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2524 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2525 rtp_protocol_select="udp_protocol"
2526 sctp_protocol_deps="struct_sctp_event_subscribe"
2527 sctp_protocol_select="network"
2528 srtp_protocol_select="rtp_protocol"
2529 tcp_protocol_select="network"
2530 tls_protocol_deps_any="openssl gnutls"
2531 tls_protocol_select="tcp_protocol"
2532 udp_protocol_select="network"
2533 unix_protocol_deps="sys_un_h"
2534 unix_protocol_select="network"
2535
2536 # filters
2537 amovie_filter_deps="avcodec avformat"
2538 aresample_filter_deps="swresample"
2539 ass_filter_deps="libass"
2540 asyncts_filter_deps="avresample"
2541 atempo_filter_deps="avcodec"
2542 atempo_filter_select="rdft"
2543 azmq_filter_deps="libzmq"
2544 blackframe_filter_deps="gpl"
2545 boxblur_filter_deps="gpl"
2546 bs2b_filter_deps="libbs2b"
2547 colormatrix_filter_deps="gpl"
2548 cropdetect_filter_deps="gpl"
2549 delogo_filter_deps="gpl"
2550 deshake_filter_select="pixelutils"
2551 drawtext_filter_deps="libfreetype"
2552 ebur128_filter_deps="gpl"
2553 flite_filter_deps="libflite"
2554 frei0r_filter_deps="frei0r dlopen"
2555 frei0r_filter_extralibs='$ldl'
2556 frei0r_src_filter_deps="frei0r dlopen"
2557 frei0r_src_filter_extralibs='$ldl'
2558 geq_filter_deps="gpl"
2559 histeq_filter_deps="gpl"
2560 hqdn3d_filter_deps="gpl"
2561 interlace_filter_deps="gpl"
2562 kerndeint_filter_deps="gpl"
2563 ladspa_filter_deps="ladspa dlopen"
2564 ladspa_filter_extralibs='$ldl'
2565 mcdeint_filter_deps="avcodec gpl"
2566 movie_filter_deps="avcodec avformat"
2567 mp_filter_deps="gpl avcodec swscale inline_asm"
2568 mpdecimate_filter_deps="gpl"
2569 mpdecimate_filter_select="pixelutils"
2570 mptestsrc_filter_deps="gpl"
2571 negate_filter_deps="lut_filter"
2572 perspective_filter_deps="gpl"
2573 ocv_filter_deps="libopencv"
2574 owdenoise_filter_deps="gpl"
2575 pan_filter_deps="swresample"
2576 phase_filter_deps="gpl"
2577 pp_filter_deps="gpl postproc"
2578 pullup_filter_deps="gpl"
2579 removelogo_filter_deps="avcodec avformat swscale"
2580 resample_filter_deps="avresample"
2581 sab_filter_deps="gpl swscale"
2582 scale_filter_deps="swscale"
2583 select_filter_select="pixelutils"
2584 smartblur_filter_deps="gpl swscale"
2585 showspectrum_filter_deps="avcodec"
2586 showspectrum_filter_select="rdft"
2587 spp_filter_deps="gpl avcodec"
2588 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2589 stereo3d_filter_deps="gpl"
2590 subtitles_filter_deps="avformat avcodec libass"
2591 super2xsai_filter_deps="gpl"
2592 tinterlace_filter_deps="gpl"
2593 vidstabdetect_filter_deps="libvidstab"
2594 vidstabtransform_filter_deps="libvidstab"
2595 pixfmts_super2xsai_test_deps="super2xsai_filter"
2596 tinterlace_merge_test_deps="tinterlace_filter"
2597 tinterlace_pad_test_deps="tinterlace_filter"
2598 zmq_filter_deps="libzmq"
2599 zoompan_filter_deps="swscale"
2600
2601 # examples
2602 avio_reading="avformat avcodec avutil"
2603 avcodec_example_deps="avcodec avutil"
2604 decoding_encoding_example_deps="avcodec avformat avutil"
2605 demuxing_decoding_example_deps="avcodec avformat avutil"
2606 extract_mvs_example_deps="avcodec avformat avutil"
2607 filter_audio_example_deps="avfilter avutil"
2608 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2609 filtering_video_example_deps="avfilter avcodec avformat avutil"
2610 metadata_example_deps="avformat avutil"
2611 muxing_example_deps="avcodec avformat avutil swscale"
2612 remuxing_example_deps="avcodec avformat avutil"
2613 resampling_audio_example_deps="avutil swresample"
2614 scaling_video_example_deps="avutil swscale"
2615 transcode_aac_example_deps="avcodec avformat swresample"
2616 transcoding_example_deps="avfilter avcodec avformat avutil"
2617
2618 # libraries, in linking order
2619 avcodec_deps="avutil"
2620 avdevice_deps="avformat avcodec avutil"
2621 avfilter_deps="avutil"
2622 avformat_deps="avcodec avutil"
2623 avresample_deps="avutil"
2624 postproc_deps="avutil gpl"
2625 swresample_deps="avutil"
2626 swscale_deps="avutil"
2627
2628 # programs
2629 ffmpeg_deps="avcodec avfilter avformat swresample"
2630 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2631                null_filter
2632                setpts_filter trim_filter"
2633 ffplay_deps="avcodec avformat swscale swresample sdl"
2634 ffplay_libs='$sdl_libs'
2635 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2636 ffprobe_deps="avcodec avformat"
2637 ffserver_deps="avformat fork sarestart"
2638 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2639
2640 # documentation
2641 podpages_deps="perl"
2642 manpages_deps="perl pod2man"
2643 htmlpages_deps="perl"
2644 htmlpages_deps_any="makeinfo_html texi2html"
2645 txtpages_deps="perl makeinfo"
2646 doc_deps_any="manpages htmlpages podpages txtpages"
2647
2648 # default parameters
2649
2650 logfile="config.log"
2651
2652 # installation paths
2653 prefix_default="/usr/local"
2654 bindir_default='${prefix}/bin'
2655 datadir_default='${prefix}/share/ffmpeg'
2656 docdir_default='${prefix}/share/doc/ffmpeg'
2657 incdir_default='${prefix}/include'
2658 libdir_default='${prefix}/lib'
2659 mandir_default='${prefix}/share/man'
2660 shlibdir_default="$libdir_default"
2661
2662 # toolchain
2663 ar_default="ar"
2664 cc_default="gcc"
2665 cxx_default="g++"
2666 host_cc_default="gcc"
2667 cp_f="cp -f"
2668 doxygen_default="doxygen"
2669 install="install"
2670 ln_s="ln -s -f"
2671 nm_default="nm -g"
2672 objformat="elf"
2673 pkg_config_default=pkg-config
2674 ranlib_default="ranlib"
2675 strip_default="strip"
2676 yasmexe_default="yasm"
2677 windres_default="windres"
2678
2679 # OS
2680 target_os_default=$(tolower $(uname -s))
2681 host_os=$target_os_default
2682
2683 # machine
2684 if test "$target_os_default" = aix; then
2685     arch_default=$(uname -p)
2686     strip_default="strip -X32_64"
2687 else
2688     arch_default=$(uname -m)
2689 fi
2690 cpu="generic"
2691 intrinsics="none"
2692
2693 # configurable options
2694 enable $PROGRAM_LIST
2695 enable $DOCUMENT_LIST
2696 enable $EXAMPLE_LIST
2697 enable $(filter_out avresample $LIBRARY_LIST)
2698 enable stripping
2699
2700 enable asm
2701 enable debug
2702 enable doc
2703 enable faan faandct faanidct
2704 enable optimizations
2705 enable runtime_cpudetect
2706 enable safe_bitstream_reader
2707 enable static
2708 enable swscale_alpha
2709
2710 sws_max_filter_size_default=256
2711 set_default sws_max_filter_size
2712
2713 # Enable hwaccels by default.
2714 enable dxva2 vaapi vda vdpau xvmc
2715 enable xlib
2716
2717 # build settings
2718 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2719 LIBPREF="lib"
2720 LIBSUF=".a"
2721 FULLNAME='$(NAME)$(BUILDSUF)'
2722 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2723 SLIBPREF="lib"
2724 SLIBSUF=".so"
2725 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2726 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2727 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2728 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2729 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2730 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2731
2732 asflags_filter=echo
2733 cflags_filter=echo
2734 ldflags_filter=echo
2735
2736 AS_C='-c'
2737 AS_O='-o $@'
2738 CC_C='-c'
2739 CC_E='-E -o $@'
2740 CC_O='-o $@'
2741 CXX_C='-c'
2742 CXX_O='-o $@'
2743 LD_O='-o $@'
2744 LD_LIB='-l%'
2745 LD_PATH='-L'
2746 HOSTCC_C='-c'
2747 HOSTCC_E='-E -o $@'
2748 HOSTCC_O='-o $@'
2749 HOSTLD_O='-o $@'
2750
2751 host_libs='-lm'
2752 host_cflags_filter=echo
2753 host_ldflags_filter=echo
2754
2755 target_path='$(CURDIR)'
2756
2757 # since the object filename is not given with the -MM flag, the compiler
2758 # is only able to print the basename, and we must add the path ourselves
2759 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2760 DEPFLAGS='-MM'
2761
2762 # find source path
2763 if test -f configure; then
2764     source_path=.
2765 else
2766     source_path=$(cd $(dirname "$0"); pwd)
2767     echo "$source_path" | grep -q '[[:blank:]]' &&
2768         die "Out of tree builds are impossible with whitespace in source path."
2769     test -e "$source_path/config.h" &&
2770         die "Out of tree builds are impossible with config.h in source dir."
2771 fi
2772
2773 for v in "$@"; do
2774     r=${v#*=}
2775     l=${v%"$r"}
2776     r=$(sh_quote "$r")
2777     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2778 done
2779
2780 find_things(){
2781     thing=$1
2782     pattern=$2
2783     file=$source_path/$3
2784     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2785 }
2786
2787 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2788 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2789 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2790 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2791 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2792 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2793 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2794 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2795 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2796 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2797 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2798
2799 ALL_COMPONENTS="
2800     $BSF_LIST
2801     $DECODER_LIST
2802     $DEMUXER_LIST
2803     $ENCODER_LIST
2804     $FILTER_LIST
2805     $HWACCEL_LIST
2806     $INDEV_LIST
2807     $MUXER_LIST
2808     $OUTDEV_LIST
2809     $PARSER_LIST
2810     $PROTOCOL_LIST
2811 "
2812
2813 for n in $COMPONENT_LIST; do
2814     v=$(toupper ${n%s})_LIST
2815     eval enable \$$v
2816     eval ${n}_if_any="\$$v"
2817 done
2818
2819 enable $ARCH_EXT_LIST
2820
2821 die_unknown(){
2822     echo "Unknown option \"$1\"."
2823     echo "See $0 --help for available options."
2824     exit 1
2825 }
2826
2827 print_3_columns() {
2828     cat | tr ' ' '\n' | sort | pr -r -3 -t
2829 }
2830
2831 show_list() {
2832     suffix=_$1
2833     shift
2834     echo $* | sed s/$suffix//g | print_3_columns
2835     exit 0
2836 }
2837
2838 rand_list(){
2839     IFS=', '
2840     set -- $*
2841     unset IFS
2842     for thing; do
2843         comp=${thing%:*}
2844         prob=${thing#$comp}
2845         prob=${prob#:}
2846         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2847         echo "prob ${prob:-0.5}"
2848         printf '%s\n' $comp
2849     done
2850 }
2851
2852 do_random(){
2853     action=$1
2854     shift
2855     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2856     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2857 }
2858
2859 for opt do
2860     optval="${opt#*=}"
2861     case "$opt" in
2862         --extra-ldflags=*)
2863             add_ldflags $optval
2864         ;;
2865         --extra-ldexeflags=*)
2866             add_ldexeflags $optval
2867         ;;
2868         --extra-libs=*)
2869             add_extralibs $optval
2870         ;;
2871         --disable-devices)
2872             disable $INDEV_LIST $OUTDEV_LIST
2873         ;;
2874         --enable-debug=*)
2875             debuglevel="$optval"
2876         ;;
2877         --disable-programs)
2878             disable $PROGRAM_LIST
2879         ;;
2880         --disable-everything)
2881             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2882         ;;
2883         --disable-all)
2884             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2885             disable $LIBRARY_LIST $PROGRAM_LIST doc
2886         ;;
2887         --enable-random|--disable-random)
2888             action=${opt%%-random}
2889             do_random ${action#--} $COMPONENT_LIST
2890         ;;
2891         --enable-random=*|--disable-random=*)
2892             action=${opt%%-random=*}
2893             do_random ${action#--} $optval
2894         ;;
2895         --enable-*=*|--disable-*=*)
2896             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2897             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2898             eval list=\$$(toupper $thing)_LIST
2899             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2900             list=$(filter "$name" $list)
2901             [ "$list" = "" ] && warn "Option $opt did not match anything"
2902             $action $list
2903         ;;
2904         --enable-?*|--disable-?*)
2905             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2906             if is_in $option $COMPONENT_LIST; then
2907                 test $action = disable && action=unset
2908                 eval $action \$$(toupper ${option%s})_LIST
2909             elif is_in $option $CMDLINE_SELECT; then
2910                 $action $option
2911             else
2912                 die_unknown $opt
2913             fi
2914         ;;
2915         --list-*)
2916             NAME="${opt#--list-}"
2917             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2918             NAME=${NAME%s}
2919             eval show_list $NAME \$$(toupper $NAME)_LIST
2920         ;;
2921         --help|-h) show_help
2922         ;;
2923         --fatal-warnings) enable fatal_warnings
2924         ;;
2925         *)
2926             optname="${opt%%=*}"
2927             optname="${optname#--}"
2928             optname=$(echo "$optname" | sed 's/-/_/g')
2929             if is_in $optname $CMDLINE_SET; then
2930                 eval $optname='$optval'
2931             elif is_in $optname $CMDLINE_APPEND; then
2932                 append $optname "$optval"
2933             else
2934                 die_unknown $opt
2935             fi
2936         ;;
2937     esac
2938 done
2939
2940 disabled logging && logfile=/dev/null
2941
2942 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2943 set >> $logfile
2944
2945 test -n "$cross_prefix" && enable cross_compile
2946
2947 if enabled cross_compile; then
2948     test -n "$arch" && test -n "$target_os" ||
2949         die "Must specify target arch and OS when cross-compiling"
2950 fi
2951
2952 ar_default="${cross_prefix}${ar_default}"
2953 cc_default="${cross_prefix}${cc_default}"
2954 cxx_default="${cross_prefix}${cxx_default}"
2955 nm_default="${cross_prefix}${nm_default}"
2956 pkg_config_default="${cross_prefix}${pkg_config_default}"
2957 ranlib_default="${cross_prefix}${ranlib_default}"
2958 strip_default="${cross_prefix}${strip_default}"
2959 windres_default="${cross_prefix}${windres_default}"
2960
2961 sysinclude_default="${sysroot}/usr/include"
2962
2963 test -n "$valgrind" && toolchain="valgrind-memcheck"
2964
2965 case "$toolchain" in
2966     clang-asan)
2967         cc_default="clang"
2968         add_cflags  -fsanitize=address
2969         add_ldflags -fsanitize=address
2970     ;;
2971     clang-tsan)
2972         cc_default="clang"
2973         add_cflags  -fsanitize=thread -pie
2974         add_ldflags -fsanitize=thread -pie
2975     ;;
2976     clang-usan)
2977         cc_default="clang"
2978         add_cflags  -fsanitize=undefined
2979         add_ldflags -fsanitize=undefined
2980     ;;
2981     gcc-asan)
2982         cc_default="gcc"
2983         add_cflags  -fsanitize=address
2984         add_ldflags -fsanitize=address
2985     ;;
2986     gcc-tsan)
2987         cc_default="gcc"
2988         add_cflags  -fsanitize=thread -pie -fPIC
2989         add_ldflags -fsanitize=thread -pie -fPIC
2990     ;;
2991     gcc-usan)
2992         cc_default="gcc"
2993         add_cflags  -fsanitize=undefined
2994         add_ldflags -fsanitize=undefined
2995     ;;
2996     valgrind-massif)
2997         target_exec_default=${valgrind:-"valgrind"}
2998         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"
2999     ;;
3000     valgrind-memcheck)
3001         target_exec_default=${valgrind:-"valgrind"}
3002         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3003     ;;
3004     msvc)
3005         # Check whether the current MSVC version needs the C99 converter.
3006         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3007         # support enough of C99 to build ffmpeg. Default to the new
3008         # behaviour if the regexp was unable to match anything, since this
3009         # successfully parses the version number of existing supported
3010         # versions that require the converter (MSVC 2010 and 2012).
3011         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3012         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3013             cc_default="cl"
3014         else
3015             cc_default="c99wrap cl"
3016         fi
3017         ld_default="link"
3018         nm_default="dumpbin -symbols"
3019         ar_default="lib"
3020         target_os_default="win32"
3021         # Use a relative path for TMPDIR. This makes sure all the
3022         # ffconf temp files are written with a relative path, avoiding
3023         # issues with msys/win32 path conversion for MSVC parameters
3024         # such as -Fo<file> or -out:<file>.
3025         TMPDIR=.
3026     ;;
3027     icl)
3028         cc_default="icl"
3029         ld_default="xilink"
3030         nm_default="dumpbin -symbols"
3031         ar_default="xilib"
3032         target_os_default="win32"
3033         TMPDIR=.
3034     ;;
3035     gcov)
3036         add_cflags  -fprofile-arcs -ftest-coverage
3037         add_ldflags -fprofile-arcs -ftest-coverage
3038     ;;
3039     hardened)
3040         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3041         add_cflags   -fno-strict-overflow -fstack-protector-all
3042         add_ldflags  -Wl,-z,relro -Wl,-z,now
3043     ;;
3044     ?*)
3045         die "Unknown toolchain $toolchain"
3046     ;;
3047 esac
3048
3049 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3050     target_exec target_os yasmexe
3051 enabled cross_compile || host_cc_default=$cc
3052 set_default host_cc
3053
3054 if ! $pkg_config --version >/dev/null 2>&1; then
3055     warn "$pkg_config not found, library detection may fail."
3056     pkg_config=false
3057 fi
3058
3059 if test $doxygen != $doxygen_default && \
3060   ! $doxygen --version >/dev/null 2>&1; then
3061     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3062 fi
3063
3064 exesuf() {
3065     case $1 in
3066         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3067     esac
3068 }
3069
3070 EXESUF=$(exesuf $target_os)
3071 HOSTEXESUF=$(exesuf $host_os)
3072
3073 # set temporary file name
3074 : ${TMPDIR:=$TEMPDIR}
3075 : ${TMPDIR:=$TMP}
3076 : ${TMPDIR:=/tmp}
3077
3078 if [ -n "$tempprefix" ] ; then
3079     mktemp(){
3080         echo $tempprefix.${HOSTNAME}.${UID}
3081     }
3082 elif ! check_cmd mktemp -u XXXXXX; then
3083     # simple replacement for missing mktemp
3084     # NOT SAFE FOR GENERAL USE
3085     mktemp(){
3086         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3087     }
3088 fi
3089
3090 tmpfile(){
3091     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3092         (set -C; exec > $tmp) 2>/dev/null ||
3093         die "Unable to create temporary file in $TMPDIR."
3094     append TMPFILES $tmp
3095     eval $1=$tmp
3096 }
3097
3098 trap 'rm -f -- $TMPFILES' EXIT
3099
3100 tmpfile TMPASM .asm
3101 tmpfile TMPC   .c
3102 tmpfile TMPCPP .cpp
3103 tmpfile TMPE   $EXESUF
3104 tmpfile TMPH   .h
3105 tmpfile TMPM   .m
3106 tmpfile TMPO   .o
3107 tmpfile TMPS   .S
3108 tmpfile TMPSH  .sh
3109 tmpfile TMPV   .ver
3110
3111 unset -f mktemp
3112
3113 chmod +x $TMPE
3114
3115 # make sure we can execute files in $TMPDIR
3116 cat > $TMPSH 2>> $logfile <<EOF
3117 #! /bin/sh
3118 EOF
3119 chmod +x $TMPSH >> $logfile 2>&1
3120 if ! $TMPSH >> $logfile 2>&1; then
3121     cat <<EOF
3122 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3123 variable to another directory and make sure that it is not mounted noexec.
3124 EOF
3125     die "Sanity test failed."
3126 fi
3127
3128 armasm_flags(){
3129     for flag; do
3130         case $flag in
3131             # Filter out MSVC cl.exe options from cflags that shouldn't
3132             # be passed to gas-preprocessor
3133             -M[TD]*)                                            ;;
3134             *)                  echo $flag                      ;;
3135         esac
3136    done
3137 }
3138
3139 ccc_flags(){
3140     for flag; do
3141         case $flag in
3142             -std=c99)           echo -c99                       ;;
3143             -mcpu=*)            echo -arch ${flag#*=}           ;;
3144             -mieee)             echo -ieee                      ;;
3145             -O*|-fast)          echo $flag                      ;;
3146             -fno-math-errno)    echo -assume nomath_errno       ;;
3147             -g)                 echo -g3                        ;;
3148             -Wall)              echo -msg_enable level2         ;;
3149             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3150             -Wl,*)              echo $flag                      ;;
3151             -f*|-W*)                                            ;;
3152             *)                  echo $flag                      ;;
3153         esac
3154    done
3155 }
3156
3157 cparser_flags(){
3158     for flag; do
3159         case $flag in
3160             -Wno-switch)             echo -Wno-switch-enum ;;
3161             -Wno-format-zero-length) ;;
3162             -Wdisabled-optimization) ;;
3163             -Wno-pointer-sign)       echo -Wno-other ;;
3164             *)                       echo $flag ;;
3165         esac
3166     done
3167 }
3168
3169 msvc_common_flags(){
3170     for flag; do
3171         case $flag in
3172             # In addition to specifying certain flags under the compiler
3173             # specific filters, they must be specified here as well or else the
3174             # generic catch all at the bottom will print the original flag.
3175             -Wall)                ;;
3176             -std=c99)             ;;
3177             # Common flags
3178             -fomit-frame-pointer) ;;
3179             -g)                   echo -Z7 ;;
3180             -fno-math-errno)      ;;
3181             -fno-common)          ;;
3182             -fno-signed-zeros)    ;;
3183             -fPIC)                ;;
3184             -mthumb)              ;;
3185             -march=*)             ;;
3186             -lz)                  echo zlib.lib ;;
3187             -lavifil32)           echo vfw32.lib ;;
3188             -lavicap32)           echo vfw32.lib user32.lib ;;
3189             -l*)                  echo ${flag#-l}.lib ;;
3190             *)                    echo $flag ;;
3191         esac
3192     done
3193 }
3194
3195 msvc_flags(){
3196     msvc_common_flags "$@"
3197     for flag; do
3198         case $flag in
3199             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3200                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3201                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3202                                        -wd4554 \
3203                                        -wd4273 -wd4701 ;;
3204         esac
3205     done
3206 }
3207
3208 icl_flags(){
3209     msvc_common_flags "$@"
3210     for flag; do
3211         case $flag in
3212             # Despite what Intel's documentation says -Wall, which is supported
3213             # on Windows, does enable remarks so disable them here.
3214             -Wall)                echo $flag -Qdiag-disable:remark ;;
3215             -std=c99)             echo -Qstd=c99 ;;
3216             -flto)                echo -ipo ;;
3217         esac
3218     done
3219 }
3220
3221 icc_flags(){
3222     for flag; do
3223         case $flag in
3224             -flto)                echo -ipo ;;
3225             *)                    echo $flag ;;
3226         esac
3227     done
3228 }
3229
3230 pgi_flags(){
3231     for flag; do
3232         case $flag in
3233             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3234             -fomit-frame-pointer) echo -Mnoframe ;;
3235             -g)                   echo -gopt ;;
3236             *)                    echo $flag ;;
3237         esac
3238     done
3239 }
3240
3241 suncc_flags(){
3242     for flag; do
3243         case $flag in
3244             -march=*|-mcpu=*)
3245                 case "${flag#*=}" in
3246                     native)                   echo -xtarget=native       ;;
3247                     v9|niagara)               echo -xarch=sparc          ;;
3248                     ultrasparc)               echo -xarch=sparcvis       ;;
3249                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3250                     i586|pentium)             echo -xchip=pentium        ;;
3251                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3252                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3253                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3254                     pentium4*)          echo -xtarget=pentium4           ;;
3255                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3256                     *-sse3)             echo -xarch=sse3                 ;;
3257                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3258                     bonnell)                   echo -xarch=ssse3         ;;
3259                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3260                     westmere)                  echo -xtarget=westmere    ;;
3261                     silvermont)                echo -xarch=sse4_2        ;;
3262                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3263                     core-avx*|ivybridge|haswell|broadwell)
3264                                                echo -xarch=avx           ;;
3265                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3266                     btver1)                    echo -xarch=amdsse4a      ;;
3267                     btver2|bdver*)             echo -xarch=avx           ;;
3268                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3269                     k8|opteron|athlon64|athlon-fx)
3270                                                echo -xarch=sse2a         ;;
3271                     athlon*)                   echo -xarch=pentium_proa  ;;
3272                 esac
3273                 ;;
3274             -std=c99)             echo -xc99              ;;
3275             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3276             -fPIC)                echo -KPIC -xcode=pic32 ;;
3277             -W*,*)                echo $flag              ;;
3278             -f*-*|-W*|-mimpure-text)                      ;;
3279             -shared)              echo -G                 ;;
3280             *)                    echo $flag              ;;
3281         esac
3282     done
3283 }
3284
3285 tms470_flags(){
3286     for flag; do
3287         case $flag in
3288             -march=*|-mcpu=*)
3289                 case "${flag#*=}" in
3290                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3291                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3292                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3293                     armv6*|arm11*)          echo -mv=6   ;;
3294                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3295                                             echo -mv=5e  ;;
3296                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3297                 esac
3298                 ;;
3299             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3300             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3301             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3302             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3303             -msoft-float)   echo --float_support=vfplib       ;;
3304             -O[0-3]|-mf=*)  echo $flag                        ;;
3305             -g)             echo -g -mn                       ;;
3306             -pds=*)         echo $flag                        ;;
3307             -D*|-I*)        echo $flag                        ;;
3308             --gcc|--abi=*)  echo $flag                        ;;
3309             -me)            echo $flag                        ;;
3310         esac
3311     done
3312 }
3313
3314 probe_cc(){
3315     pfx=$1
3316     _cc=$2
3317
3318     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3319     unset _ld_o _ldflags _ld_lib _ld_path
3320     unset _depflags _DEPCMD _DEPFLAGS
3321     _flags_filter=echo
3322
3323     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3324         true # no-op to avoid reading stdin in following checks
3325     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3326         _type=llvm_gcc
3327         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3328         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3329         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3330         _cflags_speed='-O3'
3331         _cflags_size='-Os'
3332     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3333         _type=gcc
3334         gcc_version=$($_cc --version | head -n1)
3335         gcc_basever=$($_cc -dumpversion)
3336         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3337         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3338         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3339         if ! $_cc -dumpversion | grep -q '^2\.'; then
3340             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3341         fi
3342         _cflags_speed='-O3'
3343         _cflags_size='-Os'
3344     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3345         _type=icc
3346         _ident=$($_cc --version | head -n1)
3347         _depflags='-MMD'
3348         _cflags_speed='-O3'
3349         _cflags_size='-Os'
3350         _cflags_noopt='-O1'
3351         _flags_filter=icc_flags
3352     elif $_cc -v 2>&1 | grep -q xlc; then
3353         _type=xlc
3354         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3355         _cflags_speed='-O5'
3356         _cflags_size='-O5 -qcompact'
3357     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3358         _type=ccc
3359         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3360         _DEPFLAGS='-M'
3361         _cflags_speed='-fast'
3362         _cflags_size='-O1'
3363         _flags_filter=ccc_flags
3364     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3365         test -d "$sysroot" || die "No valid sysroot specified."
3366         _type=armcc
3367         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3368         armcc_conf="$PWD/armcc.conf"
3369         $_cc --arm_linux_configure                 \
3370              --arm_linux_config_file="$armcc_conf" \
3371              --configure_sysroot="$sysroot"        \
3372              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3373              die "Error creating armcc configuration file."
3374         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3375         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3376         as_default="${cross_prefix}gcc"
3377         _depflags='-MMD'
3378         _cflags_speed='-O3'
3379         _cflags_size='-Os'
3380     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3381         _type=tms470
3382         _ident=$($_cc -version | head -n1 | tr -s ' ')
3383         _flags='--gcc --abi=eabi -me'
3384         _cc_e='-ppl -fe=$@'
3385         _cc_o='-fe=$@'
3386         _depflags='-ppa -ppd=$(@:.o=.d)'
3387         _cflags_speed='-O3 -mf=5'
3388         _cflags_size='-O3 -mf=2'
3389         _flags_filter=tms470_flags
3390     elif $_cc -v 2>&1 | grep -q clang; then
3391         _type=clang
3392         _ident=$($_cc --version | head -n1)
3393         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3394         _cflags_speed='-O3'
3395         _cflags_size='-Os'
3396     elif $_cc -V 2>&1 | grep -q Sun; then
3397         _type=suncc
3398         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3399         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3400         _DEPFLAGS='-xM1 -xc99'
3401         _ldflags='-std=c99'
3402         _cflags_speed='-O5'
3403         _cflags_size='-O5 -xspace'
3404         _flags_filter=suncc_flags
3405     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3406         _type=pathscale
3407         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3408         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3409         _cflags_speed='-O2'
3410         _cflags_size='-Os'
3411         _flags_filter='filter_out -Wdisabled-optimization'
3412     elif $_cc -v 2>&1 | grep -q Open64; then
3413         _type=open64
3414         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3415         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3416         _cflags_speed='-O2'
3417         _cflags_size='-Os'
3418         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3419     elif $_cc -V 2>&1 | grep -q Portland; then
3420         _type=pgi
3421         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3422         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3423         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3424         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3425         _cflags_noopt="-O"
3426         _flags_filter=pgi_flags
3427     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3428         _type=armasm
3429         _ident=$($_cc | head -n1)
3430         # 4509: "This form of conditional instruction is deprecated"
3431         _flags="-nologo -ignore 4509"
3432         _flags_filter=armasm_flags
3433     elif $_cc 2>&1 | grep -q Microsoft; then
3434         _type=msvc
3435         _ident=$($cc 2>&1 | head -n1)
3436         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3437         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3438         _cflags_speed="-O2"
3439         _cflags_size="-O1"
3440         if $_cc 2>&1 | grep -q Linker; then
3441             _ld_o='-out:$@'
3442         else
3443             _ld_o='-Fe$@'
3444         fi
3445         _cc_o='-Fo$@'
3446         _cc_e='-P -Fi$@'
3447         _flags_filter=msvc_flags
3448         _ld_lib='lib%.a'
3449         _ld_path='-libpath:'
3450         _flags='-nologo'
3451         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3452         if [ $pfx = hostcc ]; then
3453             append _cflags -Dsnprintf=_snprintf
3454         fi
3455         disable stripping
3456     elif $_cc 2>&1 | grep -q Intel; then
3457         _type=icl
3458         _ident=$($cc 2>&1 | head -n1)
3459         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3460         # Not only is O3 broken on 13.x+ but it is slower on all previous
3461         # versions (tested) as well.
3462         _cflags_speed="-O2"
3463         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3464         if $_cc 2>&1 | grep -q Linker; then
3465             _ld_o='-out:$@'
3466         else
3467             _ld_o='-Fe$@'
3468         fi
3469         _cc_o='-Fo$@'
3470         _cc_e='-P'
3471         _flags_filter=icl_flags
3472         _ld_lib='lib%.a'
3473         _ld_path='-libpath:'
3474         # -Qdiag-error to make icl error when seeing certain unknown arguments
3475         _flags='-nologo -Qdiag-error:4044,10157'
3476         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3477         # with MSVC which enables it by default.
3478         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3479         if [ $pfx = hostcc ]; then
3480             append _cflags -Dsnprintf=_snprintf
3481         fi
3482     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3483         _type=cparser
3484         _ident=$($_cc --version | head -n1)
3485         _depflags='-MMD'
3486         _cflags_speed='-O4'
3487         _cflags_size='-O2'
3488         _flags_filter=cparser_flags
3489     fi
3490
3491     eval ${pfx}_type=\$_type
3492     eval ${pfx}_ident=\$_ident
3493 }
3494
3495 set_ccvars(){
3496     eval ${1}_C=\${_cc_c-\${${1}_C}}
3497     eval ${1}_E=\${_cc_e-\${${1}_E}}
3498     eval ${1}_O=\${_cc_o-\${${1}_O}}
3499
3500     if [ -n "$_depflags" ]; then
3501         eval ${1}_DEPFLAGS=\$_depflags
3502     else
3503         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3504         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3505         eval DEP${1}FLAGS=\$_flags
3506     fi
3507 }
3508
3509 probe_cc cc "$cc"
3510 cflags_filter=$_flags_filter
3511 cflags_speed=$_cflags_speed
3512 cflags_size=$_cflags_size
3513 cflags_noopt=$_cflags_noopt
3514 add_cflags $_flags $_cflags
3515 cc_ldflags=$_ldflags
3516 set_ccvars CC
3517
3518 probe_cc hostcc "$host_cc"
3519 host_cflags_filter=$_flags_filter
3520 add_host_cflags  $_flags $_cflags
3521 set_ccvars HOSTCC
3522
3523 test -n "$cc_type" && enable $cc_type ||
3524     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3525
3526 : ${as_default:=$cc}
3527 : ${dep_cc_default:=$cc}
3528 : ${ld_default:=$cc}
3529 : ${host_ld_default:=$host_cc}
3530 set_default ar as dep_cc ld host_ld windres
3531
3532 probe_cc as "$as"
3533 asflags_filter=$_flags_filter
3534 add_asflags $_flags $_cflags
3535 set_ccvars AS
3536
3537 probe_cc ld "$ld"
3538 ldflags_filter=$_flags_filter
3539 add_ldflags $_flags $_ldflags
3540 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3541 LD_O=${_ld_o-$LD_O}
3542 LD_LIB=${_ld_lib-$LD_LIB}
3543 LD_PATH=${_ld_path-$LD_PATH}
3544
3545 probe_cc hostld "$host_ld"
3546 host_ldflags_filter=$_flags_filter
3547 add_host_ldflags $_flags $_ldflags
3548 HOSTLD_O=${_ld_o-$HOSTLD_O}
3549
3550 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3551     probe_cc depcc "$dep_cc"
3552     CCDEP=${_DEPCMD:-$DEPCMD}
3553     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3554     DEPCCFLAGS=$_flags
3555 fi
3556
3557 if $ar 2>&1 | grep -q Microsoft; then
3558     arflags="-nologo"
3559     ar_o='-out:$@'
3560 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3561     arflags="rq"
3562     ar_o='$@'
3563 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3564     arflags='-Xany -r -c'
3565     ar_o='$@'
3566 else
3567     arflags="rc"
3568     ar_o='$@'
3569 fi
3570
3571 add_cflags $extra_cflags
3572 add_cxxflags $extra_cxxflags
3573 add_asflags $extra_cflags
3574
3575 if test -n "$sysroot"; then
3576     case "$cc_type" in
3577         gcc|llvm_gcc|clang)
3578             add_cppflags --sysroot="$sysroot"
3579             add_ldflags --sysroot="$sysroot"
3580 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3581             add_cppflags -isysroot "$sysroot"
3582             add_ldflags -isysroot "$sysroot"
3583         ;;
3584         tms470)
3585             add_cppflags -I"$sysinclude"
3586             add_ldflags  --sysroot="$sysroot"
3587         ;;
3588     esac
3589 fi
3590
3591 if test "$cpu" = host; then
3592     enabled cross_compile &&
3593         die "--cpu=host makes no sense when cross-compiling."
3594
3595     case "$cc_type" in
3596         gcc|llvm_gcc)
3597             check_native(){
3598                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3599                 sed -n "/cc1.*$1=/{
3600                             s/.*$1=\\([^ ]*\\).*/\\1/
3601                             p
3602                             q
3603                         }" $TMPE
3604             }
3605             cpu=$(check_native -march || check_native -mcpu)
3606         ;;
3607     esac
3608
3609     test "${cpu:-host}" = host &&
3610         die "--cpu=host not supported with compiler $cc"
3611 fi
3612
3613 # Deal with common $arch aliases
3614 case "$arch" in
3615     aarch64|arm64)
3616         arch="aarch64"
3617     ;;
3618     arm*|iPad*|iPhone*)
3619         arch="arm"
3620     ;;
3621     mips*|IP*)
3622         arch="mips"
3623     ;;
3624     parisc*|hppa*)
3625         arch="parisc"
3626     ;;
3627     "Power Macintosh"|ppc*|powerpc*)
3628         arch="ppc"
3629     ;;
3630     s390|s390x)
3631         arch="s390"
3632     ;;
3633     sh4|sh)
3634         arch="sh4"
3635     ;;
3636     sun4u|sparc*)
3637         arch="sparc"
3638     ;;
3639     tilegx|tile-gx)
3640         arch="tilegx"
3641     ;;
3642     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3643         arch="x86"
3644     ;;
3645 esac
3646
3647 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3648 enable $arch
3649
3650 # Add processor-specific flags
3651 if enabled aarch64; then
3652
3653     case $cpu in
3654         armv*)
3655             cpuflags="-march=$cpu"
3656         ;;
3657         *)
3658             cpuflags="-mcpu=$cpu"
3659         ;;
3660     esac
3661
3662 elif enabled alpha; then
3663
3664     cpuflags="-mcpu=$cpu"
3665
3666 elif enabled arm; then
3667
3668     check_arm_arch() {
3669         check_cpp_condition stddef.h \
3670             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3671             $cpuflags
3672     }
3673
3674     probe_arm_arch() {
3675         if   check_arm_arch 4;        then echo armv4;
3676         elif check_arm_arch 4T;       then echo armv4t;
3677         elif check_arm_arch 5;        then echo armv5;
3678         elif check_arm_arch 5E;       then echo armv5e;
3679         elif check_arm_arch 5T;       then echo armv5t;
3680         elif check_arm_arch 5TE;      then echo armv5te;
3681         elif check_arm_arch 5TEJ;     then echo armv5te;
3682         elif check_arm_arch 6;        then echo armv6;
3683         elif check_arm_arch 6J;       then echo armv6j;
3684         elif check_arm_arch 6K;       then echo armv6k;
3685         elif check_arm_arch 6Z;       then echo armv6z;
3686         elif check_arm_arch 6ZK;      then echo armv6zk;
3687         elif check_arm_arch 6T2;      then echo armv6t2;
3688         elif check_arm_arch 7;        then echo armv7;
3689         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3690         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3691         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3692         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3693         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3694         fi
3695     }
3696
3697     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3698
3699     case $cpu in
3700         armv*)
3701             cpuflags="-march=$cpu"
3702             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3703         ;;
3704         *)
3705             cpuflags="-mcpu=$cpu"
3706             case $cpu in
3707                 cortex-a*)                               subarch=armv7a  ;;
3708                 cortex-r*)                               subarch=armv7r  ;;
3709                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3710                 arm11*)                                  subarch=armv6   ;;
3711                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3712                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3713                 *)                             subarch=$(probe_arm_arch) ;;
3714             esac
3715         ;;
3716     esac
3717
3718     case "$subarch" in
3719         armv5t*)    enable fast_clz                ;;
3720         armv[6-8]*)
3721             enable fast_clz
3722             disabled fast_unaligned || enable fast_unaligned
3723             ;;
3724     esac
3725
3726 elif enabled avr32; then
3727
3728     case $cpu in
3729         ap7[02]0[0-2])
3730             subarch="avr32_ap"
3731             cpuflags="-mpart=$cpu"
3732         ;;
3733         ap)
3734             subarch="avr32_ap"
3735             cpuflags="-march=$cpu"
3736         ;;
3737         uc3[ab]*)
3738             subarch="avr32_uc"
3739             cpuflags="-mcpu=$cpu"
3740         ;;
3741         uc)
3742             subarch="avr32_uc"
3743             cpuflags="-march=$cpu"
3744         ;;
3745     esac
3746
3747 elif enabled bfin; then
3748
3749     cpuflags="-mcpu=$cpu"
3750
3751 elif enabled mips; then
3752
3753     cpuflags="-march=$cpu"
3754
3755     case $cpu in
3756         24kc)
3757             disable mipsfpu
3758             disable mipsdspr1
3759             disable mipsdspr2
3760         ;;
3761         24kf*)
3762             disable mipsdspr1
3763             disable mipsdspr2
3764         ;;
3765         24kec|34kc|1004kc)
3766             disable mipsfpu
3767             disable mipsdspr2
3768         ;;
3769         24kef*|34kf*|1004kf*)
3770             disable mipsdspr2
3771         ;;
3772         74kc)
3773             disable mipsfpu
3774         ;;
3775     esac
3776
3777 elif enabled ppc; then
3778
3779     disable ldbrx
3780     disable vsx
3781
3782     case $(tolower $cpu) in
3783         601|ppc601|powerpc601)
3784             cpuflags="-mcpu=601"
3785             disable altivec
3786         ;;
3787         603*|ppc603*|powerpc603*)
3788             cpuflags="-mcpu=603"
3789             disable altivec
3790         ;;
3791         604*|ppc604*|powerpc604*)
3792             cpuflags="-mcpu=604"
3793             disable altivec
3794         ;;
3795         g3|75*|ppc75*|powerpc75*)
3796             cpuflags="-mcpu=750"
3797             disable altivec
3798         ;;
3799         g4|745*|ppc745*|powerpc745*)
3800             cpuflags="-mcpu=7450"
3801         ;;
3802         74*|ppc74*|powerpc74*)
3803             cpuflags="-mcpu=7400"
3804         ;;
3805         g5|970|ppc970|powerpc970)
3806             cpuflags="-mcpu=970"
3807         ;;
3808         power[3-8]*)
3809             cpuflags="-mcpu=$cpu"
3810         ;;
3811         cell)
3812             cpuflags="-mcpu=cell"
3813             enable ldbrx
3814         ;;
3815         e500mc)
3816             cpuflags="-mcpu=e500mc"
3817             disable altivec
3818         ;;
3819         e500v2)
3820             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3821             disable altivec
3822             disable dcbzl
3823         ;;
3824         e500)
3825             cpuflags="-mcpu=8540 -mhard-float"
3826             disable altivec
3827             disable dcbzl
3828         ;;
3829     esac
3830
3831 elif enabled sparc; then
3832
3833     case $cpu in
3834         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3835             cpuflags="-mcpu=$cpu"
3836         ;;
3837         ultrasparc*|niagara[234])
3838             cpuflags="-mcpu=$cpu"
3839         ;;
3840     esac
3841
3842 elif enabled x86; then
3843
3844     case $cpu in
3845         i[345]86|pentium)
3846             cpuflags="-march=$cpu"
3847             disable i686
3848             disable mmx
3849         ;;
3850         # targets that do NOT support nopl and conditional mov (cmov)
3851         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3852             cpuflags="-march=$cpu"
3853             disable i686
3854         ;;
3855         # targets that do support nopl and conditional mov (cmov)
3856         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3857         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3858             cpuflags="-march=$cpu"
3859             enable i686
3860             enable fast_cmov
3861         ;;
3862         # targets that do support conditional mov but on which it's slow
3863         pentium4|pentium4m|prescott|nocona)
3864             cpuflags="-march=$cpu"
3865             enable i686
3866             disable fast_cmov
3867         ;;
3868     esac
3869
3870 fi
3871
3872 if [ "$cpu" != generic ]; then
3873     add_cflags  $cpuflags
3874     add_asflags $cpuflags
3875 fi
3876
3877 # compiler sanity check
3878 check_exec <<EOF
3879 int main(void){ return 0; }
3880 EOF
3881 if test "$?" != 0; then
3882     echo "$cc is unable to create an executable file."
3883     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3884         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3885         echo "Only do this if you know what cross compiling means."
3886     fi
3887     die "C compiler test failed."
3888 fi
3889
3890 add_cppflags -D_ISOC99_SOURCE
3891 add_cxxflags -D__STDC_CONSTANT_MACROS
3892 check_cflags -std=c99
3893 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3894 #include <stdlib.h>
3895 EOF
3896 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3897 #include <stdlib.h>
3898 EOF
3899
3900 add_host_cppflags -D_ISOC99_SOURCE
3901 check_host_cflags -std=c99
3902 check_host_cflags -Wall
3903 check_host_cflags -O3
3904
3905 check_64bit(){
3906     arch32=$1
3907     arch64=$2
3908     expr=$3
3909     check_code cc "" "int test[2*($expr) - 1]" &&
3910         subarch=$arch64 || subarch=$arch32
3911 }
3912
3913 case "$arch" in
3914     aarch64|alpha|ia64)
3915         spic=$shared
3916     ;;
3917     mips)
3918         check_64bit mips mips64 '_MIPS_SIM > 1'
3919         spic=$shared
3920     ;;
3921     parisc)
3922         check_64bit parisc parisc64 'sizeof(void *) > 4'
3923         spic=$shared
3924     ;;
3925     ppc)
3926         check_64bit ppc ppc64 'sizeof(void *) > 4'
3927         spic=$shared
3928     ;;
3929     s390)
3930         check_64bit s390 s390x 'sizeof(void *) > 4'
3931         spic=$shared
3932     ;;
3933     sparc)
3934         check_64bit sparc sparc64 'sizeof(void *) > 4'
3935         spic=$shared
3936     ;;
3937     x86)
3938         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3939         if test "$subarch" = "x86_64"; then
3940             spic=$shared
3941         fi
3942     ;;
3943     ppc)
3944         check_cc <<EOF && subarch="ppc64"
3945         int test[(int)sizeof(char*) - 7];
3946 EOF
3947     ;;
3948 esac
3949
3950 enable $subarch
3951 enabled spic && enable_weak pic
3952
3953 # OS specific
3954 case $target_os in
3955     aix)
3956         SHFLAGS=-shared
3957         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3958         enabled shared && add_ldflags -Wl,-brtl
3959         ;;
3960     android)
3961         disable symver
3962         SLIB_INSTALL_NAME='$(SLIBNAME)'
3963         SLIB_INSTALL_LINKS=
3964         # soname not set on purpose
3965         SHFLAGS=-shared
3966         ;;
3967     haiku)
3968         prefix_default="/boot/common"
3969         network_extralibs="-lnetwork"
3970         host_libs=
3971         ;;
3972     sunos)
3973         SHFLAGS='-shared -Wl,-h,$$(@F)'
3974         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3975         network_extralibs="-lsocket -lnsl"
3976         # When using suncc to build, the Solaris linker will mark
3977         # an executable with each instruction set encountered by
3978         # the Solaris assembler.  As our libraries contain their own
3979         # guards for processor-specific code, instead suppress
3980         # generation of the HWCAPS ELF section on Solaris x86 only.
3981         enabled_all suncc x86 &&
3982             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3983             add_ldflags -Wl,-M,mapfile
3984         nm_default='nm -P -g'
3985         ;;
3986     netbsd)
3987         disable symver
3988         oss_indev_extralibs="-lossaudio"
3989         oss_outdev_extralibs="-lossaudio"
3990         enabled gcc || check_ldflags -Wl,-zmuldefs
3991         ;;
3992     openbsd|bitrig)
3993         disable symver
3994         SHFLAGS='-shared'
3995         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3996         SLIB_INSTALL_LINKS=
3997         oss_indev_extralibs="-lossaudio"
3998         oss_outdev_extralibs="-lossaudio"
3999         ;;
4000     dragonfly)
4001         disable symver
4002         ;;
4003     freebsd)
4004         ;;
4005     bsd/os)
4006         add_extralibs -lpoll -lgnugetopt
4007         strip="strip -d"
4008         ;;
4009     darwin)
4010         enabled ppc && add_asflags -force_cpusubtype_ALL
4011         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4012         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4013         strip="${strip} -x"
4014         add_ldflags -Wl,-dynamic,-search_paths_first
4015         SLIBSUF=".dylib"
4016         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4017         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4018         objformat="macho"
4019         enabled x86_64 && objformat="macho64"
4020         enabled_any pic shared ||
4021             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4022         ;;
4023     mingw32*)
4024         if test $target_os = "mingw32ce"; then
4025             disable network
4026         else
4027             target_os=mingw32
4028         fi
4029         LIBTARGET=i386
4030         if enabled x86_64; then
4031             LIBTARGET="i386:x86-64"
4032         elif enabled arm; then
4033             LIBTARGET=arm-wince
4034         fi
4035         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4036         check_ldflags -Wl,--nxcompat
4037         check_ldflags -Wl,--dynamicbase
4038         shlibdir_default="$bindir_default"
4039         SLIBPREF=""
4040         SLIBSUF=".dll"
4041         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4042         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4043         dlltool="${cross_prefix}dlltool"
4044         if check_cmd lib.exe -list; then
4045             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4046             if enabled x86_64; then
4047                 LIBTARGET=x64
4048             fi
4049         elif check_cmd $dlltool --version; then
4050             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4051         fi
4052         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4053         SLIB_INSTALL_LINKS=
4054         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4055         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4056         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4057         objformat="win32"
4058         ranlib=:
4059         enable dos_paths
4060         ;;
4061     win32|win64)
4062         disable symver
4063         if enabled shared; then
4064             # Link to the import library instead of the normal static library
4065             # for shared libs.
4066             LD_LIB='%.lib'
4067             # Cannot build both shared and static libs with MSVC or icl.
4068             disable static
4069         fi
4070         shlibdir_default="$bindir_default"
4071         SLIBPREF=""
4072         SLIBSUF=".dll"
4073         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4074         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4075         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4076         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4077         SLIB_INSTALL_LINKS=
4078         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4079         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4080         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4081         objformat="win32"
4082         ranlib=:
4083         enable dos_paths
4084         ;;
4085     cygwin*)
4086         target_os=cygwin
4087         shlibdir_default="$bindir_default"
4088         SLIBPREF="cyg"
4089         SLIBSUF=".dll"
4090         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4091         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4092         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4093         SLIB_INSTALL_LINKS=
4094         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4095         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4096         objformat="win32"
4097         enable dos_paths
4098         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4099         ;;
4100     *-dos|freedos|opendos)
4101         network_extralibs="-lsocket"
4102         objformat="coff"
4103         enable dos_paths
4104         add_cppflags -U__STRICT_ANSI__
4105         ;;
4106     linux)
4107         enable dv1394
4108         ;;
4109     irix*)
4110         target_os=irix
4111         ranlib="echo ignoring ranlib"
4112         ;;
4113     os/2*)
4114         strip="lxlite -CS"
4115         ln_s="cp -f"
4116         objformat="aout"
4117         add_cppflags -D_GNU_SOURCE
4118         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4119         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4120         LIBSUF="_s.a"
4121         SLIBPREF=""
4122         SLIBSUF=".dll"
4123         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4124         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4125         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4126             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4127             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4128             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4129             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4130             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4131         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4132             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4133         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4134         enable dos_paths
4135         enable_weak os2threads
4136         ;;
4137     gnu/kfreebsd)
4138         add_cppflags -D_BSD_SOURCE
4139         ;;
4140     gnu)
4141         ;;
4142     qnx)
4143         add_cppflags -D_QNX_SOURCE
4144         network_extralibs="-lsocket"
4145         ;;
4146     symbian)
4147         SLIBSUF=".dll"
4148         enable dos_paths
4149         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4150         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4151         add_ldflags -Wl,--target1-abs,--no-undefined \
4152                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4153                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4154         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4155                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4156                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4157         ;;
4158     osf1)
4159         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4160         ;;
4161     minix)
4162         ;;
4163     plan9)
4164         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4165                      -D_REENTRANT_SOURCE        \
4166                      -D_RESEARCH_SOURCE         \
4167                      -DFD_SETSIZE=96            \
4168                      -DHAVE_SOCK_OPTS
4169         add_compat strtod.o strtod=avpriv_strtod
4170         network_extralibs='-lbsd'
4171         exeobjs=compat/plan9/main.o
4172         disable ffserver
4173         cp_f='cp'
4174         ;;
4175     none)
4176         ;;
4177     *)
4178         die "Unknown OS '$target_os'."
4179         ;;
4180 esac
4181
4182 # determine libc flavour
4183
4184 probe_libc(){
4185     pfx=$1
4186     pfx_no_=${pfx%_}
4187     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4188     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4189         eval ${pfx}libc_type=uclibc
4190         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4191     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4192         eval ${pfx}libc_type=glibc
4193         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4194     # MinGW headers can be installed on Cygwin, so check for newlib first.
4195     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4196         eval ${pfx}libc_type=newlib
4197         add_${pfx}cppflags -U__STRICT_ANSI__
4198     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4199     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4200         eval ${pfx}libc_type=mingw64
4201         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4202             add_compat msvcrt/snprintf.o
4203             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4204         fi
4205         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4206         eval test \$${pfx_no_}cc_type = "gcc" &&
4207             add_${pfx}cppflags -D__printf__=__gnu_printf__
4208     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4209          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4210         eval ${pfx}libc_type=mingw32
4211         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4212             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4213             die "ERROR: MinGW32 runtime version must be >= 3.15."
4214         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4215         eval test \$${pfx_no_}cc_type = "gcc" &&
4216             add_${pfx}cppflags -D__printf__=__gnu_printf__
4217     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4218         eval ${pfx}libc_type=msvcrt
4219         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4220         # 0x601 by default unless something else is set by the user.
4221         # This can easily lead to us detecting functions only present
4222         # in such new versions and producing binaries requiring windows 7.0.
4223         # Therefore explicitly set the default to XP unless the user has
4224         # set something else on the command line.
4225         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4226             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4227     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4228         eval ${pfx}libc_type=klibc
4229     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4230         eval ${pfx}libc_type=bionic
4231     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4232         eval ${pfx}libc_type=solaris
4233         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4234     fi
4235 }
4236
4237 probe_libc
4238 test -n "$libc_type" && enable libc_$libc_type
4239 probe_libc host_
4240 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4241
4242 case $libc_type in
4243     bionic)
4244         add_compat strtod.o strtod=avpriv_strtod
4245         ;;
4246     msvcrt)
4247         add_compat strtod.o strtod=avpriv_strtod
4248         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4249                                      _snprintf=avpriv_snprintf  \
4250                                      vsnprintf=avpriv_vsnprintf
4251         ;;
4252 esac
4253
4254 # hacks for compiler/libc/os combinations
4255
4256 if enabled_all tms470 libc_glibc; then
4257     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4258     add_cppflags -D__USER_LABEL_PREFIX__=
4259     add_cppflags -D__builtin_memset=memset
4260     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4261     add_cflags   -pds=48    # incompatible redefinition of macro
4262 fi
4263
4264 if enabled_all ccc libc_glibc; then
4265     add_ldflags -Wl,-z,now  # calls to libots crash without this
4266 fi
4267
4268 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4269     add_cppflags '-I\$(SRC_PATH)/compat/float'
4270
4271 esc(){
4272     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4273 }
4274
4275 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4276
4277 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4278
4279 set_default $PATHS_LIST
4280 set_default nm
4281
4282 # we need to build at least one lib type
4283 if ! enabled_any static shared; then
4284     cat <<EOF
4285 At least one library type must be built.
4286 Specify --enable-static to build the static libraries or --enable-shared to
4287 build the shared libraries as well. To only build the shared libraries specify
4288 --disable-static in addition to --enable-shared.
4289 EOF
4290     exit 1;
4291 fi
4292
4293 die_license_disabled() {
4294     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4295 }
4296
4297 die_license_disabled_gpl() {
4298     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4299 }
4300
4301 die_license_disabled gpl frei0r
4302 die_license_disabled gpl libcdio
4303 die_license_disabled gpl libsmbclient
4304 die_license_disabled gpl libutvideo
4305 die_license_disabled gpl libvidstab
4306 die_license_disabled gpl libx264
4307 die_license_disabled gpl libx265
4308 die_license_disabled gpl libxavs
4309 die_license_disabled gpl libxvid
4310 die_license_disabled gpl libzvbi
4311 die_license_disabled gpl x11grab
4312
4313 die_license_disabled nonfree libaacplus
4314 die_license_disabled nonfree libfaac
4315 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4316 enabled gpl && die_license_disabled_gpl nonfree openssl
4317
4318 die_license_disabled version3 libopencore_amrnb
4319 die_license_disabled version3 libopencore_amrwb
4320 die_license_disabled version3 libsmbclient
4321 die_license_disabled version3 libvo_aacenc
4322 die_license_disabled version3 libvo_amrwbenc
4323
4324 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4325
4326 disabled optimizations || check_cflags -fomit-frame-pointer
4327
4328 enable_weak_pic() {
4329     disabled pic && return
4330     enable pic
4331     add_cppflags -DPIC
4332     case "$target_os" in
4333     mingw*|cygwin*)
4334         ;;
4335     *)
4336         add_cflags -fPIC
4337         ;;
4338     esac
4339     add_asflags  -fPIC
4340 }
4341
4342 enabled pic && enable_weak_pic
4343
4344 check_cc <<EOF || die "Symbol mangling check failed."
4345 int ff_extern;
4346 EOF
4347 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4348 extern_prefix=${sym%%ff_extern*}
4349
4350 check_cc <<EOF && enable_weak inline_asm
4351 void foo(void) { __asm__ volatile ("" ::); }
4352 EOF
4353
4354 _restrict=
4355 for restrict_keyword in restrict __restrict__ __restrict; do
4356     check_cc <<EOF && _restrict=$restrict_keyword && break
4357 void foo(char * $restrict_keyword p);
4358 EOF
4359 done
4360
4361 check_cc <<EOF && enable pragma_deprecated
4362 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4363 EOF
4364
4365 check_cc <<EOF && enable attribute_packed
4366 struct { int x; } __attribute__((packed)) x;
4367 EOF
4368
4369 check_cc <<EOF && enable attribute_may_alias
4370 union { int x; } __attribute__((may_alias)) x;
4371 EOF
4372
4373 check_cc <<EOF || die "endian test failed"
4374 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4375 EOF
4376 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4377
4378 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4379     if ! enabled bigendian ;then
4380         enable vsx
4381     fi
4382 fi
4383
4384 check_gas() {
4385     log "check_gas using '$as' as AS"
4386     # :vararg is used on aarch64, arm and ppc altivec
4387     check_as <<EOF || return 1
4388 .macro m n, y:vararg=0
4389 \n: .int \y
4390 .endm
4391 m x
4392 EOF
4393     # .altmacro is only used in arm asm
4394     ! enabled arm || check_as <<EOF || return 1
4395 .altmacro
4396 EOF
4397     enable gnu_as
4398     return 0
4399 }
4400
4401 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4402     nogas=:
4403     enabled_any arm aarch64 && nogas=die
4404     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4405     as_noop=-v
4406
4407     case $as_type in
4408         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4409         gcc)  gaspp_as_type=gas ;;
4410         *)    gaspp_as_type=$as_type ;;
4411     esac
4412
4413     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4414
4415     test "${as#*gas-preprocessor.pl}" != "$as" ||
4416     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4417         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4418
4419     if ! check_gas ; then
4420         as=${gas:=$as}
4421         check_gas || \
4422             $nogas "GNU assembler not found, install/update gas-preprocessor"
4423     fi
4424
4425     check_as <<EOF && enable as_func
4426 .func test
4427 .endfunc
4428 EOF
4429 fi
4430
4431 check_inline_asm inline_asm_labels '"1:\n"'
4432
4433 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4434
4435 if enabled aarch64; then
4436     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4437     # internal assembler in clang 3.3 does not support this instruction
4438     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4439     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4440
4441     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4442
4443 elif enabled alpha; then
4444
4445     check_cflags -mieee
4446
4447 elif enabled arm; then
4448
4449     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4450 float func(float a, float b){ return a+b; }
4451 EOF
4452
4453     enabled thumb && check_cflags -mthumb || check_cflags -marm
4454
4455     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4456         enable vfp_args
4457     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4458         case "${cross_prefix:-$cc}" in
4459             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4460             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4461 __asm__ (".eabi_attribute 28, 1");
4462 int main(void) { return 0; }
4463 EOF
4464         esac
4465         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4466     fi
4467
4468     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4469     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4470     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4471     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4472     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4473     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4474     enabled setend  && check_insn setend  'setend be'
4475
4476     [ $target_os = linux ] || [ $target_os = android ] ||
4477         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4478             $ARCH_EXT_LIST_ARM
4479
4480     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4481
4482     check_as <<EOF && enable as_dn_directive
4483 ra .dn d0.i16
4484 .unreq ra
4485 EOF
4486
4487     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4488
4489 elif enabled mips; then
4490
4491     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4492     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4493      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4494     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4495      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4496     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4497      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4498     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4499      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4500
4501 elif enabled parisc; then
4502
4503     if enabled gcc; then
4504         case $($cc -dumpversion) in
4505             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4506         esac
4507     fi
4508
4509 elif enabled ppc; then
4510
4511     enable local_aligned_8 local_aligned_16 local_aligned_32
4512
4513     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4514     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4515     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4516     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4517
4518     # AltiVec flags: The FSF version of GCC differs from the Apple version
4519     if enabled altivec; then
4520         check_cflags -maltivec -mabi=altivec &&
4521         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4522         check_cflags -faltivec
4523
4524         # check if our compiler supports Motorola AltiVec C API
4525         check_cc <<EOF || disable altivec
4526 $inc_altivec_h
4527 int main(void) {
4528     vector signed int v1 = (vector signed int) { 0 };
4529     vector signed int v2 = (vector signed int) { 1 };
4530     v1 = vec_add(v1, v2);
4531     return 0;
4532 }
4533 EOF
4534
4535         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4536     fi
4537
4538     if enabled vsx; then
4539         check_cflags -mvsx
4540     fi
4541 elif enabled x86; then
4542
4543     check_builtin rdtsc    intrin.h   "__rdtsc()"
4544     check_builtin mm_empty mmintrin.h "_mm_empty()"
4545
4546     enable local_aligned_8 local_aligned_16 local_aligned_32
4547
4548     # check whether EBP is available on x86
4549     # As 'i' is stored on the stack, this program will crash
4550     # if the base pointer is used to access it because the
4551     # base pointer is cleared in the inline assembly code.
4552     check_exec_crash <<EOF && enable ebp_available
4553 volatile int i=0;
4554 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4555 return i;
4556 EOF
4557
4558     # check whether EBX is available on x86
4559     check_inline_asm ebx_available '""::"b"(0)' &&
4560         check_inline_asm ebx_available '"":::"%ebx"'
4561
4562     # check whether xmm clobbers are supported
4563     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4564
4565     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4566         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4567
4568     # check whether binutils is new enough to compile SSSE3/MMXEXT
4569     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4570     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4571
4572     if ! disabled_any asm mmx yasm; then
4573         if check_cmd $yasmexe --version; then
4574             enabled x86_64 && yasm_extra="-m amd64"
4575             yasm_debug="-g dwarf2"
4576         elif check_cmd nasm -v; then
4577             yasmexe=nasm
4578             yasm_debug="-g -F dwarf"
4579             if enabled x86_64; then
4580                 case "$objformat" in
4581                     elf)   objformat=elf64 ;;
4582                     win32) objformat=win64 ;;
4583                 esac
4584             fi
4585         fi
4586
4587         YASMFLAGS="-f $objformat $yasm_extra"
4588         enabled pic               && append YASMFLAGS "-DPIC"
4589         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4590         case "$objformat" in
4591             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4592         esac
4593
4594         check_yasm "movbe ecx, [5]" && enable yasm ||
4595             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4596         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4597         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4598         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4599         check_yasm "CPU amdnop" || disable cpunop
4600     fi
4601
4602     case "$cpu" in
4603         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4604             disable fast_clz
4605         ;;
4606     esac
4607
4608 fi
4609
4610 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4611
4612 check_ldflags -Wl,--as-needed
4613
4614 if check_func dlopen; then
4615     ldl=
4616 elif check_func dlopen -ldl; then
4617     ldl=-ldl
4618 fi
4619
4620 if ! disabled network; then
4621     check_func getaddrinfo $network_extralibs
4622     check_func getservbyport $network_extralibs
4623     check_func inet_aton $network_extralibs
4624
4625     check_type netdb.h "struct addrinfo"
4626     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4627     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4628     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4629     check_type poll.h "struct pollfd"
4630     check_type netinet/sctp.h "struct sctp_event_subscribe"
4631     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4632     check_type netinet/in.h "struct sockaddr_in6"
4633     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4634     check_type "sys/types.h sys/socket.h" socklen_t
4635
4636     # Prefer arpa/inet.h over winsock2
4637     if check_header arpa/inet.h ; then
4638         check_func closesocket
4639     elif check_header winsock2.h ; then
4640         check_func_headers winsock2.h closesocket -lws2 &&
4641             network_extralibs="-lws2" ||
4642         { check_func_headers winsock2.h closesocket -lws2_32 &&
4643             network_extralibs="-lws2_32"; } || disable winsock2_h network
4644         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4645
4646         check_type ws2tcpip.h socklen_t
4647         check_type ws2tcpip.h "struct addrinfo"
4648         check_type ws2tcpip.h "struct group_source_req"
4649         check_type ws2tcpip.h "struct ip_mreq_source"
4650         check_type ws2tcpip.h "struct ipv6_mreq"
4651         check_type winsock2.h "struct pollfd"
4652         check_struct winsock2.h "struct sockaddr" sa_len
4653         check_type ws2tcpip.h "struct sockaddr_in6"
4654         check_type ws2tcpip.h "struct sockaddr_storage"
4655     else
4656         disable network
4657     fi
4658 fi
4659
4660 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4661 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4662 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4663 check_builtin sarestart signal.h "SA_RESTART"
4664 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4665
4666 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4667 check_func  ${malloc_prefix}memalign            && enable memalign
4668 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4669
4670 check_func  access
4671 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt; }
4672 check_func  fcntl
4673 check_func  fork
4674 check_func  gethrtime
4675 check_func  getopt
4676 check_func  getrusage
4677 check_func  gettimeofday
4678 check_func  isatty
4679 check_func  localtime_r
4680 check_func  mach_absolute_time
4681 check_func  mkstemp
4682 check_func  mmap
4683 check_func  mprotect
4684 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4685 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4686 check_func  sched_getaffinity
4687 check_func  setrlimit
4688 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4689 check_func  strerror_r
4690 check_func  sysconf
4691 check_func  sysctl
4692 check_func  usleep
4693
4694 check_func_headers conio.h kbhit
4695 check_func_headers io.h setmode
4696 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4697 check_func_headers stdlib.h getenv
4698
4699 check_func_headers windows.h CoTaskMemFree -lole32
4700 check_func_headers windows.h GetProcessAffinityMask
4701 check_func_headers windows.h GetProcessTimes
4702 check_func_headers windows.h GetSystemTimeAsFileTime
4703 check_func_headers windows.h MapViewOfFile
4704 check_func_headers windows.h PeekNamedPipe
4705 check_func_headers windows.h SetConsoleTextAttribute
4706 check_func_headers windows.h Sleep
4707 check_func_headers windows.h VirtualAlloc
4708 check_func_headers glob.h glob
4709 enabled xlib &&
4710     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4711
4712 check_header cl/cl.h
4713 check_header direct.h
4714 check_header dlfcn.h
4715 check_header dxva.h
4716 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4717 check_header io.h
4718 check_header libcrystalhd/libcrystalhd_if.h
4719 check_header mach/mach_time.h
4720 check_header malloc.h
4721 check_header poll.h
4722 check_header sys/mman.h
4723 check_header sys/param.h
4724 check_header sys/resource.h
4725 check_header sys/select.h
4726 check_header sys/time.h
4727 check_header sys/un.h
4728 check_header termios.h
4729 check_header unistd.h
4730 check_header vdpau/vdpau.h
4731 check_header vdpau/vdpau_x11.h
4732 check_header VideoDecodeAcceleration/VDADecoder.h
4733 check_header windows.h
4734 check_header X11/extensions/XvMClib.h
4735 check_header asm/types.h
4736
4737 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4738 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4739 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4740
4741 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4742
4743 if ! disabled w32threads && ! enabled pthreads; then
4744     check_func_headers "windows.h process.h" _beginthreadex &&
4745         enable w32threads || disable w32threads
4746 fi
4747
4748 # check for some common methods of building with pthread support
4749 # do this before the optional library checks as some of them require pthreads
4750 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4751     enable pthreads
4752     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4753         add_cflags -pthread
4754         add_extralibs -pthread
4755     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4756         add_cflags -pthreads
4757         add_extralibs -pthreads
4758     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4759         add_cflags -ldl -pthread
4760         add_extralibs -ldl -pthread
4761     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4762         add_extralibs -lpthreadGC2
4763     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4764         :
4765     elif ! check_func pthread_join && ! check_func pthread_create; then
4766         disable pthreads
4767     fi
4768     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4769 fi
4770
4771
4772 if enabled pthreads; then
4773   check_func pthread_cancel
4774 fi
4775
4776 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4777 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4778 disabled  lzma || check_lib2  lzma.h lzma_version_number -llzma || disable lzma
4779
4780 check_lib math.h sin -lm && LIBM="-lm"
4781 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4782
4783 atan2f_args=2
4784 ldexpf_args=2
4785 powf_args=2
4786 fminf_args=2
4787
4788 for func in $MATH_FUNCS; do
4789     eval check_mathfunc $func \${${func}_args:-1}
4790 done
4791
4792 # these are off by default, so fail if requested and not available
4793 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4794 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4795                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4796                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4797 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4798 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4799 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4800 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4801 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4802 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4803 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4804 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4805 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4806 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4807                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4808                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4809 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4810 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4811 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4812 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"
4813 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4814 enabled fontconfig        && enable libfontconfig
4815 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4816 enabled libfreetype       && require_libfreetype
4817 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4818 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4819 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4820                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4821                                done || die "ERROR: libgsm not found"; }
4822 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4823 enabled libmodplug        && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4824 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4825 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4826 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4827 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4828 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4829 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4830                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4831                                die "ERROR: libopenjpeg not found"; }
4832 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4833 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4834 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4835 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4836 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4837 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer