Merge commit '990e2f3555bb0adae122d3599938ddcfee46e2d1'
[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
93 Licensing options:
94   --enable-gpl             allow use of GPL code, the resulting libs
95                            and binaries will be under GPL [no]
96   --enable-version3        upgrade (L)GPL to version 3 [no]
97   --enable-nonfree         allow use of nonfree code, the resulting libs
98                            and binaries will be unredistributable [no]
99
100 Configuration options:
101   --disable-static         do not build static libraries [no]
102   --enable-shared          build shared libraries [no]
103   --enable-small           optimize for size instead of speed
104   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
105   --enable-gray            enable full grayscale support (slower color)
106   --disable-swscale-alpha  disable alpha channel support in swscale
107   --disable-all            disable building components, libraries and programs
108   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
109   --enable-raise-major     increase major version numbers in sonames [no]
110
111 Program options:
112   --disable-programs       do not build command line programs
113   --disable-ffmpeg         disable ffmpeg build
114   --disable-ffplay         disable ffplay build
115   --disable-ffprobe        disable ffprobe build
116   --disable-ffserver       disable ffserver build
117
118 Documentation options:
119   --disable-doc            do not build documentation
120   --disable-htmlpages      do not build HTML documentation pages
121   --disable-manpages       do not build man documentation pages
122   --disable-podpages       do not build POD documentation pages
123   --disable-txtpages       do not build text documentation pages
124
125 Component options:
126   --disable-avdevice       disable libavdevice build
127   --disable-avcodec        disable libavcodec build
128   --disable-avformat       disable libavformat build
129   --disable-avutil         disable libavutil build
130   --disable-swresample     disable libswresample build
131   --disable-swscale        disable libswscale build
132   --disable-postproc       disable libpostproc build
133   --disable-avfilter       disable libavfilter build
134   --enable-avresample      enable libavresample build [no]
135   --disable-pthreads       disable pthreads [auto]
136   --disable-w32threads     disable Win32 threads [auto]
137   --disable-os2threads     disable OS/2 threads [auto]
138   --disable-network        disable network support [no]
139   --disable-dct            disable DCT code
140   --disable-dwt            disable DWT code
141   --disable-error-resilience disable error resilience code
142   --disable-lsp            disable LSP code
143   --disable-lzo            disable LZO decoder code
144   --disable-mdct           disable MDCT code
145   --disable-rdft           disable RDFT code
146   --disable-fft            disable FFT code
147
148 Hardware accelerators:
149   --disable-dxva2          disable DXVA2 code [autodetect]
150   --disable-vaapi          disable VAAPI code [autodetect]
151   --disable-vda            disable VDA code [autodetect]
152   --disable-vdpau          disable VDPAU code [autodetect]
153
154 Individual component options:
155   --disable-everything     disable all components listed below
156   --disable-encoder=NAME   disable encoder NAME
157   --enable-encoder=NAME    enable encoder NAME
158   --disable-encoders       disable all encoders
159   --disable-decoder=NAME   disable decoder NAME
160   --enable-decoder=NAME    enable decoder NAME
161   --disable-decoders       disable all decoders
162   --disable-hwaccel=NAME   disable hwaccel NAME
163   --enable-hwaccel=NAME    enable hwaccel NAME
164   --disable-hwaccels       disable all hwaccels
165   --disable-muxer=NAME     disable muxer NAME
166   --enable-muxer=NAME      enable muxer NAME
167   --disable-muxers         disable all muxers
168   --disable-demuxer=NAME   disable demuxer NAME
169   --enable-demuxer=NAME    enable demuxer NAME
170   --disable-demuxers       disable all demuxers
171   --enable-parser=NAME     enable parser NAME
172   --disable-parser=NAME    disable parser NAME
173   --disable-parsers        disable all parsers
174   --enable-bsf=NAME        enable bitstream filter NAME
175   --disable-bsf=NAME       disable bitstream filter NAME
176   --disable-bsfs           disable all bitstream filters
177   --enable-protocol=NAME   enable protocol NAME
178   --disable-protocol=NAME  disable protocol NAME
179   --disable-protocols      disable all protocols
180   --enable-indev=NAME      enable input device NAME
181   --disable-indev=NAME     disable input device NAME
182   --disable-indevs         disable input devices
183   --enable-outdev=NAME     enable output device NAME
184   --disable-outdev=NAME    disable output device NAME
185   --disable-outdevs        disable output devices
186   --disable-devices        disable all devices
187   --enable-filter=NAME     enable filter NAME
188   --disable-filter=NAME    disable filter NAME
189   --disable-filters        disable all filters
190
191 External library support:
192   --enable-avisynth        enable reading of AviSynth script files [no]
193   --disable-bzlib          disable bzlib [autodetect]
194   --enable-fontconfig      enable fontconfig
195   --enable-frei0r          enable frei0r video filtering
196   --enable-gnutls          enable gnutls [no]
197   --disable-iconv          disable iconv [autodetect]
198   --enable-ladspa          enable LADSPA audio filtering
199   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
200   --enable-libass          enable libass subtitles rendering [no]
201   --enable-libbluray       enable BluRay reading using libbluray [no]
202   --enable-libbs2b         enable bs2b DSP library [no]
203   --enable-libcaca         enable textual display using libcaca
204   --enable-libcelt         enable CELT decoding via libcelt [no]
205   --enable-libcdio         enable audio CD grabbing with libcdio
206   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
207                            and libraw1394 [no]
208   --enable-libfaac         enable AAC encoding via libfaac [no]
209   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
210   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
211   --enable-libfreetype     enable libfreetype [no]
212   --enable-libfribidi      enable libfribidi [no]
213   --enable-libgme          enable Game Music Emu via libgme [no]
214   --enable-libgsm          enable GSM de/encoding via libgsm [no]
215   --enable-libiec61883     enable iec61883 via libiec61883 [no]
216   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
217   --enable-libmodplug      enable ModPlug via libmodplug [no]
218   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
219   --enable-libnut          enable NUT (de)muxing via libnut,
220                            native (de)muxer exists [no]
221   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
222   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
223   --enable-libopencv       enable video filtering via libopencv [no]
224   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
225   --enable-libopus         enable Opus de/encoding via libopus [no]
226   --enable-libpulse        enable Pulseaudio input via libpulse [no]
227   --enable-libquvi         enable quvi input via libquvi [no]
228   --enable-librtmp         enable RTMP[E] support via librtmp [no]
229   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
230   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
231   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
232   --enable-libsoxr         enable Include libsoxr resampling [no]
233   --enable-libspeex        enable Speex de/encoding via libspeex [no]
234   --enable-libssh          enable SFTP protocol via libssh [no]
235   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
236   --enable-libtheora       enable Theora encoding via libtheora [no]
237   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
238   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
239   --enable-libv4l2         enable libv4l2/v4l-utils [no]
240   --enable-libvidstab      enable video stabilization using vid.stab [no]
241   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
242   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
243   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
244                            native implementation exists [no]
245   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
246   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
247   --enable-libwebp         enable WebP encoding via libwebp [no]
248   --enable-libx264         enable H.264 encoding via x264 [no]
249   --enable-libx265         enable HEVC encoding via x265 [no]
250   --enable-libxavs         enable AVS encoding via xavs [no]
251   --enable-libxvid         enable Xvid encoding via xvidcore,
252                            native MPEG-4/Xvid encoder exists [no]
253   --enable-libzmq          enable message passing via libzmq [no]
254   --enable-libzvbi         enable teletext support via libzvbi [no]
255   --enable-decklink        enable Blackmagick DeckLink output [no]
256   --enable-openal          enable OpenAL 1.1 capture support [no]
257   --enable-opencl          enable OpenCL code
258   --enable-opengl          enable OpenGL rendering [no]
259   --enable-openssl         enable openssl [no]
260   --enable-x11grab         enable X11 grabbing [no]
261   --disable-xlib           disable xlib [autodetect]
262   --disable-zlib           disable zlib [autodetect]
263
264 Toolchain options:
265   --arch=ARCH              select architecture [$arch]
266   --cpu=CPU                select the minimum required CPU (affects
267                            instruction selection, may crash on older CPUs)
268   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
269   --progs-suffix=SUFFIX    program name suffix []
270   --enable-cross-compile   assume a cross-compiler is used
271   --sysroot=PATH           root of cross-build tree
272   --sysinclude=PATH        location of cross-build system headers
273   --target-os=OS           compiler targets OS [$target_os]
274   --target-exec=CMD        command to run executables on target
275   --target-path=DIR        path to view of build directory on target
276   --target-samples=DIR     path to samples directory on target
277   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
278   --toolchain=NAME         set tool defaults according to NAME
279   --nm=NM                  use nm tool NM [$nm_default]
280   --ar=AR                  use archive tool AR [$ar_default]
281   --as=AS                  use assembler AS [$as_default]
282   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
283   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
284   --cc=CC                  use C compiler CC [$cc_default]
285   --cxx=CXX                use C compiler CXX [$cxx_default]
286   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
287   --ld=LD                  use linker LD [$ld_default]
288   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
289   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
290   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
291   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
292   --host-cc=HOSTCC         use host C compiler HOSTCC
293   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
294   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
295   --host-ld=HOSTLD         use host linker HOSTLD
296   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
297   --host-libs=HLIBS        use libs HLIBS when linking for host
298   --host-os=OS             compiler host OS [$target_os]
299   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
300   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
301   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
302   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
303   --extra-libs=ELIBS       add ELIBS [$ELIBS]
304   --extra-version=STRING   version string suffix []
305   --optflags=OPTFLAGS      override optimization-related compiler flags
306   --build-suffix=SUFFIX    library name suffix []
307   --enable-pic             build position-independent code
308   --enable-thumb           compile for Thumb instruction set
309   --enable-lto             use link-time optimization
310
311 Advanced options (experts only):
312   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
313   --disable-symver         disable symbol versioning
314   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
315   --disable-safe-bitstream-reader
316                            disable buffer boundary checking in bitreaders
317                            (faster, but may crash)
318   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
319   --enable-sram            allow use of on-chip SRAM
320   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
321
322 Optimization options (experts only):
323   --disable-asm            disable all assembly optimizations
324   --disable-altivec        disable AltiVec optimizations
325   --disable-amd3dnow       disable 3DNow! optimizations
326   --disable-amd3dnowext    disable 3DNow! extended optimizations
327   --disable-mmx            disable MMX optimizations
328   --disable-mmxext         disable MMXEXT optimizations
329   --disable-sse            disable SSE optimizations
330   --disable-sse2           disable SSE2 optimizations
331   --disable-sse3           disable SSE3 optimizations
332   --disable-ssse3          disable SSSE3 optimizations
333   --disable-sse4           disable SSE4 optimizations
334   --disable-sse42          disable SSE4.2 optimizations
335   --disable-avx            disable AVX optimizations
336   --disable-xop            disable XOP optimizations
337   --disable-fma3           disable FMA3 optimizations
338   --disable-fma4           disable FMA4 optimizations
339   --disable-avx2           disable AVX2 optimizations
340   --disable-armv5te        disable armv5te optimizations
341   --disable-armv6          disable armv6 optimizations
342   --disable-armv6t2        disable armv6t2 optimizations
343   --disable-vfp            disable VFP optimizations
344   --disable-neon           disable NEON optimizations
345   --disable-inline-asm     disable use of inline assembly
346   --disable-yasm           disable use of nasm/yasm assembly
347   --disable-mips32r2       disable MIPS32R2 optimizations
348   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
349   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
350   --disable-mipsfpu        disable floating point MIPS optimizations
351   --disable-fast-unaligned consider unaligned accesses slow
352
353 Developer options (useful when working on FFmpeg itself):
354   --disable-debug          disable debugging symbols
355   --enable-debug=LEVEL     set the debug level [$debuglevel]
356   --disable-optimizations  disable compiler optimizations
357   --enable-extra-warnings  enable more compiler warnings
358   --disable-stripping      disable stripping of executables and shared libraries
359   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
360                            2 causes a slowdown at runtime.
361   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
362   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
363                            leaks and errors, using the specified valgrind binary.
364                            Cannot be combined with --target-exec
365   --enable-ftrapv          Trap arithmetic overflows
366   --samples=PATH           location of test samples for FATE, if not set use
367                            \$FATE_SAMPLES at make invocation time.
368   --enable-neon-clobber-test check NEON registers for clobbering (should be
369                            used only for debugging purposes)
370   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
371                            should be used only for debugging purposes)
372   --enable-random          randomly enable/disable components
373   --disable-random
374   --enable-random=LIST     randomly enable/disable specific components or
375   --disable-random=LIST    component groups. LIST is a comma-separated list
376                            of NAME[:PROB] entries where NAME is a component
377                            (group) and PROB the probability associated with
378                            NAME (default 0.5).
379   --random-seed=VALUE      seed value for --enable/disable-random
380
381 NOTE: Object files are built at the place where configure is launched.
382 EOF
383   exit 0
384 }
385
386 quotes='""'
387
388 log(){
389     echo "$@" >> $logfile
390 }
391
392 log_file(){
393     log BEGIN $1
394     pr -n -t $1 >> $logfile
395     log END $1
396 }
397
398 echolog(){
399     log "$@"
400     echo "$@"
401 }
402
403 warn(){
404     log "WARNING: $*"
405     WARNINGS="${WARNINGS}WARNING: $*\n"
406 }
407
408 die(){
409     echolog "$@"
410     cat <<EOF
411
412 If you think configure made a mistake, make sure you are using the latest
413 version from Git.  If the latest version fails, report the problem to the
414 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
415 EOF
416     if disabled logging; then
417         cat <<EOF
418 Rerun configure with logging enabled (do not use --disable-logging), and
419 include the log this produces with your report.
420 EOF
421     else
422         cat <<EOF
423 Include the log file "$logfile" produced by configure as this will help
424 solve the problem.
425 EOF
426     fi
427     exit 1
428 }
429
430 # Avoid locale weirdness, besides we really just want to translate ASCII.
431 toupper(){
432     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
433 }
434
435 tolower(){
436     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
437 }
438
439 c_escape(){
440     echo "$*" | sed 's/["\\]/\\\0/g'
441 }
442
443 sh_quote(){
444     v=$(echo "$1" | sed "s/'/'\\\\''/g")
445     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
446     echo "$v"
447 }
448
449 cleanws(){
450     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
451 }
452
453 filter(){
454     pat=$1
455     shift
456     for v; do
457         eval "case $v in $pat) echo $v ;; esac"
458     done
459 }
460
461 filter_out(){
462     pat=$1
463     shift
464     for v; do
465         eval "case $v in $pat) ;; *) echo $v ;; esac"
466     done
467 }
468
469 map(){
470     m=$1
471     shift
472     for v; do eval $m; done
473 }
474
475 add_suffix(){
476     suffix=$1
477     shift
478     for v; do echo ${v}${suffix}; done
479 }
480
481 set_all(){
482     value=$1
483     shift
484     for var in $*; do
485         eval $var=$value
486     done
487 }
488
489 set_weak(){
490     value=$1
491     shift
492     for var; do
493         eval : \${$var:=$value}
494     done
495 }
496
497 sanitize_var_name(){
498     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
499 }
500
501 set_safe(){
502     var=$1
503     shift
504     eval $(sanitize_var_name "$var")='$*'
505 }
506
507 get_safe(){
508     eval echo \$$(sanitize_var_name "$1")
509 }
510
511 pushvar(){
512     for pvar in $*; do
513         eval level=\${${pvar}_level:=0}
514         eval ${pvar}_${level}="\$$pvar"
515         eval ${pvar}_level=$(($level+1))
516     done
517 }
518
519 popvar(){
520     for pvar in $*; do
521         eval level=\${${pvar}_level:-0}
522         test $level = 0 && continue
523         eval level=$(($level-1))
524         eval $pvar="\${${pvar}_${level}}"
525         eval ${pvar}_level=$level
526         eval unset ${pvar}_${level}
527     done
528 }
529
530 enable(){
531     set_all yes $*
532 }
533
534 disable(){
535     set_all no $*
536 }
537
538 enable_weak(){
539     set_weak yes $*
540 }
541
542 disable_weak(){
543     set_weak no $*
544 }
545
546 enable_safe(){
547     for var; do
548         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
549     done
550 }
551
552 disable_safe(){
553     for var; do
554         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
555     done
556 }
557
558 do_enable_deep(){
559     for var; do
560         enabled $var && continue
561         eval sel="\$${var}_select"
562         eval sgs="\$${var}_suggest"
563         pushvar var sgs
564         enable_deep $sel
565         popvar sgs
566         enable_deep_weak $sgs
567         popvar var
568     done
569 }
570
571 enable_deep(){
572     do_enable_deep $*
573     enable $*
574 }
575
576 enable_deep_weak(){
577     for var; do
578         disabled $var && continue
579         pushvar var
580         do_enable_deep $var
581         popvar var
582         enable_weak $var
583     done
584 }
585
586 enabled(){
587     test "${1#!}" = "$1" && op== || op=!=
588     eval test "x\$${1#!}" $op "xyes"
589 }
590
591 disabled(){
592     test "${1#!}" = "$1" && op== || op=!=
593     eval test "x\$${1#!}" $op "xno"
594 }
595
596 enabled_all(){
597     for opt; do
598         enabled $opt || return 1
599     done
600 }
601
602 disabled_all(){
603     for opt; do
604         disabled $opt || return 1
605     done
606 }
607
608 enabled_any(){
609     for opt; do
610         enabled $opt && return 0
611     done
612 }
613
614 disabled_any(){
615     for opt; do
616         disabled $opt && return 0
617     done
618     return 1
619 }
620
621 set_default(){
622     for opt; do
623         eval : \${$opt:=\$${opt}_default}
624     done
625 }
626
627 is_in(){
628     value=$1
629     shift
630     for var in $*; do
631         [ $var = $value ] && return 0
632     done
633     return 1
634 }
635
636 do_check_deps(){
637     for cfg; do
638         cfg="${cfg#!}"
639         enabled ${cfg}_checking && die "Circular dependency for $cfg."
640         disabled ${cfg}_checking && continue
641         enable ${cfg}_checking
642         append allopts $cfg
643
644         eval dep_all="\$${cfg}_deps"
645         eval dep_any="\$${cfg}_deps_any"
646         eval dep_sel="\$${cfg}_select"
647         eval dep_sgs="\$${cfg}_suggest"
648         eval dep_ifa="\$${cfg}_if"
649         eval dep_ifn="\$${cfg}_if_any"
650
651         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
652         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
653         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
654
655         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
656         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
657         enabled_all  $dep_all || disable $cfg
658         enabled_any  $dep_any || disable $cfg
659         disabled_any $dep_sel && disable $cfg
660
661         if enabled $cfg; then
662             enable_deep $dep_sel
663             enable_deep_weak $dep_sgs
664         fi
665
666         disable ${cfg}_checking
667     done
668 }
669
670 check_deps(){
671     unset allopts
672
673     do_check_deps "$@"
674
675     for cfg in $allopts; do
676         enabled $cfg || continue
677         eval dep_extralibs="\$${cfg}_extralibs"
678         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
679     done
680 }
681
682 print_config(){
683     pfx=$1
684     files=$2
685     shift 2
686     map 'eval echo "$v \${$v:-no}"' "$@" |
687     awk "BEGIN { split(\"$files\", files) }
688         {
689             c = \"$pfx\" toupper(\$1);
690             v = \$2;
691             sub(/yes/, 1, v);
692             sub(/no/,  0, v);
693             for (f in files) {
694                 file = files[f];
695                 if (file ~ /\\.h\$/) {
696                     printf(\"#define %s %d\\n\", c, v) >>file;
697                 } else if (file ~ /\\.asm\$/) {
698                     printf(\"%%define %s %d\\n\", c, v) >>file;
699                 } else if (file ~ /\\.mak\$/) {
700                     n = -v ? \"\" : \"!\";
701                     printf(\"%s%s=yes\\n\", n, c) >>file;
702                 } else if (file ~ /\\.texi\$/) {
703                     pre = -v ? \"\" : \"@c \";
704                     yesno = \$2;
705                     c2 = tolower(c);
706                     gsub(/_/, \"-\", c2);
707                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
708                 }
709             }
710         }"
711 }
712
713 print_enabled(){
714     suf=$1
715     shift
716     for v; do
717         enabled $v && printf "%s\n" ${v%$suf};
718     done
719 }
720
721 append(){
722     var=$1
723     shift
724     eval "$var=\"\$$var $*\""
725 }
726
727 prepend(){
728     var=$1
729     shift
730     eval "$var=\"$* \$$var\""
731 }
732
733 unique(){
734     var=$1
735     uniq_list=""
736     for tok in $(eval echo \$$var); do
737         uniq_list="$(filter_out $tok $uniq_list) $tok"
738     done
739     eval "$var=\"${uniq_list}\""
740 }
741
742 add_cppflags(){
743     append CPPFLAGS "$@"
744 }
745
746 add_cflags(){
747     append CFLAGS $($cflags_filter "$@")
748 }
749
750 add_cxxflags(){
751     append CXXFLAGS $($cflags_filter "$@")
752 }
753
754 add_asflags(){
755     append ASFLAGS $($asflags_filter "$@")
756 }
757
758 add_ldflags(){
759     append LDFLAGS $($ldflags_filter "$@")
760 }
761
762 add_ldexeflags(){
763     append LDEXEFLAGS $($ldflags_filter "$@")
764 }
765
766 add_stripflags(){
767     append ASMSTRIPFLAGS "$@"
768 }
769
770 add_extralibs(){
771     prepend extralibs $($ldflags_filter "$@")
772 }
773
774 add_host_cppflags(){
775     append host_cppflags "$@"
776 }
777
778 add_host_cflags(){
779     append host_cflags $($host_cflags_filter "$@")
780 }
781
782 add_host_ldflags(){
783     append host_ldflags $($host_ldflags_filter "$@")
784 }
785
786 add_compat(){
787     append compat_objs $1
788     shift
789     map 'add_cppflags -D$v' "$@"
790 }
791
792 check_cmd(){
793     log "$@"
794     "$@" >> $logfile 2>&1
795 }
796
797 check_stat(){
798     log check_stat "$@"
799     stat "$1" >> $logfile 2>&1
800 }
801
802 cc_o(){
803     eval printf '%s\\n' $CC_O
804 }
805
806 cc_e(){
807     eval printf '%s\\n' $CC_E
808 }
809
810 check_cc(){
811     log check_cc "$@"
812     cat > $TMPC
813     log_file $TMPC
814     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
815 }
816
817 check_cxx(){
818     log check_cxx "$@"
819     cat > $TMPCPP
820     log_file $TMPCPP
821     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
822 }
823
824 check_oc(){
825     log check_oc "$@"
826     cat > $TMPM
827     log_file $TMPM
828     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
829 }
830
831 check_cpp(){
832     log check_cpp "$@"
833     cat > $TMPC
834     log_file $TMPC
835     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
836 }
837
838 as_o(){
839     eval printf '%s\\n' $AS_O
840 }
841
842 check_as(){
843     log check_as "$@"
844     cat > $TMPS
845     log_file $TMPS
846     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
847 }
848
849 check_inline_asm(){
850     log check_inline_asm "$@"
851     name="$1"
852     code="$2"
853     shift 2
854     disable $name
855     check_cc "$@" <<EOF && enable $name
856 void foo(void){ __asm__ volatile($code); }
857 EOF
858 }
859
860 check_insn(){
861     log check_insn "$@"
862     check_inline_asm ${1}_inline "\"$2\""
863     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
864 }
865
866 check_yasm(){
867     log check_yasm "$@"
868     echo "$1" > $TMPS
869     log_file $TMPS
870     shift 1
871     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
872 }
873
874 ld_o(){
875     eval printf '%s\\n' $LD_O
876 }
877
878 check_ld(){
879     log check_ld "$@"
880     type=$1
881     shift 1
882     flags=$(filter_out '-l*|*.so' $@)
883     libs=$(filter '-l*|*.so' $@)
884     check_$type $($cflags_filter $flags) || return
885     flags=$($ldflags_filter $flags)
886     libs=$($ldflags_filter $libs)
887     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
888 }
889
890 print_include(){
891     hdr=$1
892     test "${hdr%.h}" = "${hdr}" &&
893         echo "#include $hdr"    ||
894         echo "#include <$hdr>"
895 }
896
897 check_code(){
898     log check_code "$@"
899     check=$1
900     headers=$2
901     code=$3
902     shift 3
903     {
904         for hdr in $headers; do
905             print_include $hdr
906         done
907         echo "int main(void) { $code; return 0; }"
908     } | check_$check "$@"
909 }
910
911 check_cppflags(){
912     log check_cppflags "$@"
913     check_cc "$@" <<EOF && append CPPFLAGS "$@"
914 int x;
915 EOF
916 }
917
918 test_cflags(){
919     log test_cflags "$@"
920     set -- $($cflags_filter "$@")
921     check_cc "$@" <<EOF
922 int x;
923 EOF
924 }
925
926 check_cflags(){
927     log check_cflags "$@"
928     test_cflags "$@" && add_cflags "$@"
929 }
930
931 check_cxxflags(){
932     log check_cxxflags "$@"
933     set -- $($cflags_filter "$@")
934     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
935 int x;
936 EOF
937 }
938
939 test_ldflags(){
940     log test_ldflags "$@"
941     check_ld "cc" "$@" <<EOF
942 int main(void){ return 0; }
943 EOF
944 }
945
946 check_ldflags(){
947     log check_ldflags "$@"
948     test_ldflags "$@" && add_ldflags "$@"
949 }
950
951 test_stripflags(){
952     log test_stripflags "$@"
953     # call check_cc to get a fresh TMPO
954     check_cc <<EOF
955 int main(void) { return 0; }
956 EOF
957     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
958 }
959
960 check_stripflags(){
961     log check_stripflags "$@"
962     test_stripflags "$@" && add_stripflags "$@"
963 }
964
965 check_header(){
966     log check_header "$@"
967     header=$1
968     shift
969     disable_safe $header
970     check_cpp "$@" <<EOF && enable_safe $header
971 #include <$header>
972 int x;
973 EOF
974 }
975
976 check_header_oc(){
977     log check_header_oc "$@"
978     rm -f -- "$TMPO"
979     header=$1
980     shift
981     disable_safe $header
982     {
983        echo "#include <$header>"
984        echo "int main(void) { return 0; }"
985     } | check_oc && check_stat "$TMPO" && enable_safe $headers
986 }
987
988 check_func(){
989     log check_func "$@"
990     func=$1
991     shift
992     disable $func
993     check_ld "cc" "$@" <<EOF && enable $func
994 extern int $func();
995 int main(void){ $func(); }
996 EOF
997 }
998
999 check_mathfunc(){
1000     log check_mathfunc "$@"
1001     func=$1
1002     narg=$2
1003     shift 2
1004     test $narg = 2 && args="f, g" || args="f"
1005     disable $func
1006     check_ld "cc" "$@" <<EOF && enable $func
1007 #include <math.h>
1008 float foo(float f, float g) { return $func($args); }
1009 int main(void){ return (int) foo; }
1010 EOF
1011 }
1012
1013 check_func_headers(){
1014     log check_func_headers "$@"
1015     headers=$1
1016     funcs=$2
1017     shift 2
1018     {
1019         for hdr in $headers; do
1020             print_include $hdr
1021         done
1022         for func in $funcs; do
1023             echo "long check_$func(void) { return (long) $func; }"
1024         done
1025         echo "int main(void) { return 0; }"
1026     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1027 }
1028
1029 check_class_headers_cpp(){
1030     log check_class_headers_cpp "$@"
1031     headers=$1
1032     classes=$2
1033     shift 2
1034     {
1035         for hdr in $headers; do
1036             echo "#include <$hdr>"
1037         done
1038         echo "int main(void) { "
1039         i=1
1040         for class in $classes; do
1041             echo "$class obj$i;"
1042             i=$(expr $i + 1)
1043         done
1044         echo "return 0; }"
1045     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1046 }
1047
1048 check_cpp_condition(){
1049     log check_cpp_condition "$@"
1050     header=$1
1051     condition=$2
1052     shift 2
1053     check_cpp "$@" <<EOF
1054 #include <$header>
1055 #if !($condition)
1056 #error "unsatisfied condition: $condition"
1057 #endif
1058 EOF
1059 }
1060
1061 check_lib(){
1062     log check_lib "$@"
1063     header="$1"
1064     func="$2"
1065     shift 2
1066     check_header $header && check_func $func "$@" && add_extralibs "$@"
1067 }
1068
1069 check_lib2(){
1070     log check_lib2 "$@"
1071     headers="$1"
1072     funcs="$2"
1073     shift 2
1074     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1075 }
1076
1077 check_lib_cpp(){
1078     log check_lib_cpp "$@"
1079     headers="$1"
1080     classes="$2"
1081     shift 2
1082     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1083 }
1084
1085 check_pkg_config(){
1086     log check_pkg_config "$@"
1087     pkgandversion="$1"
1088     pkg="${1%% *}"
1089     headers="$2"
1090     funcs="$3"
1091     shift 3
1092     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1093     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1094     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1095     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1096         set_safe ${pkg}_cflags $pkg_cflags   &&
1097         set_safe ${pkg}_libs   $pkg_libs
1098 }
1099
1100 check_exec(){
1101     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1102 }
1103
1104 check_exec_crash(){
1105     code=$(cat)
1106
1107     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1108     # are safe but may not be available everywhere.  Thus we use
1109     # raise(SIGTERM) instead.  The check is run in a subshell so we
1110     # can redirect the "Terminated" message from the shell.  SIGBUS
1111     # is not defined by standard C so it is used conditionally.
1112
1113     (check_exec "$@") >> $logfile 2>&1 <<EOF
1114 #include <signal.h>
1115 static void sighandler(int sig){
1116     raise(SIGTERM);
1117 }
1118 int foo(void){
1119     $code
1120 }
1121 int (*func_ptr)(void) = foo;
1122 int main(void){
1123     signal(SIGILL, sighandler);
1124     signal(SIGFPE, sighandler);
1125     signal(SIGSEGV, sighandler);
1126 #ifdef SIGBUS
1127     signal(SIGBUS, sighandler);
1128 #endif
1129     return func_ptr();
1130 }
1131 EOF
1132 }
1133
1134 check_type(){
1135     log check_type "$@"
1136     headers=$1
1137     type=$2
1138     shift 2
1139     disable_safe "$type"
1140     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1141 }
1142
1143 check_struct(){
1144     log check_struct "$@"
1145     headers=$1
1146     struct=$2
1147     member=$3
1148     shift 3
1149     disable_safe "${struct}_${member}"
1150     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1151         enable_safe "${struct}_${member}"
1152 }
1153
1154 check_builtin(){
1155     log check_builtin "$@"
1156     name=$1
1157     headers=$2
1158     builtin=$3
1159     shift 3
1160     disable "$name"
1161     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1162 }
1163
1164 check_compile_assert(){
1165     log check_compile_assert "$@"
1166     name=$1
1167     headers=$2
1168     condition=$3
1169     shift 3
1170     disable "$name"
1171     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1172 }
1173
1174 require(){
1175     name="$1"
1176     header="$2"
1177     func="$3"
1178     shift 3
1179     check_lib $header $func "$@" || die "ERROR: $name not found"
1180 }
1181
1182 require2(){
1183     name="$1"
1184     headers="$2"
1185     func="$3"
1186     shift 3
1187     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1188 }
1189
1190 require_cpp(){
1191     name="$1"
1192     headers="$2"
1193     classes="$3"
1194     shift 3
1195     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1196 }
1197
1198 require_pkg_config(){
1199     pkg="$1"
1200     check_pkg_config "$@" || die "ERROR: $pkg not found"
1201     add_cflags    $(get_safe ${pkg}_cflags)
1202     add_extralibs $(get_safe ${pkg}_libs)
1203 }
1204
1205 require_libfreetype(){
1206     log require_libfreetype "$@"
1207     pkg="freetype2"
1208     check_cmd $pkg_config --exists --print-errors $pkg \
1209       || die "ERROR: $pkg not found"
1210     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1211     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1212     {
1213         echo "#include <ft2build.h>"
1214         echo "#include FT_FREETYPE_H"
1215         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1216         echo "int main(void) { return 0; }"
1217     } | check_ld "cc" $pkg_cflags $pkg_libs \
1218       && set_safe ${pkg}_cflags $pkg_cflags \
1219       && set_safe ${pkg}_libs   $pkg_libs \
1220       || die "ERROR: $pkg not found"
1221     add_cflags    $(get_safe ${pkg}_cflags)
1222     add_extralibs $(get_safe ${pkg}_libs)
1223 }
1224
1225 hostcc_e(){
1226     eval printf '%s\\n' $HOSTCC_E
1227 }
1228
1229 hostcc_o(){
1230     eval printf '%s\\n' $HOSTCC_O
1231 }
1232
1233 check_host_cc(){
1234     log check_host_cc "$@"
1235     cat > $TMPC
1236     log_file $TMPC
1237     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1238 }
1239
1240 check_host_cpp(){
1241     log check_host_cpp "$@"
1242     cat > $TMPC
1243     log_file $TMPC
1244     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1245 }
1246
1247 check_host_cppflags(){
1248     log check_host_cppflags "$@"
1249     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1250 int x;
1251 EOF
1252 }
1253
1254 check_host_cflags(){
1255     log check_host_cflags "$@"
1256     set -- $($host_cflags_filter "$@")
1257     check_host_cc "$@" <<EOF && append host_cflags "$@"
1258 int x;
1259 EOF
1260 }
1261
1262 check_host_cpp_condition(){
1263     log check_host_cpp_condition "$@"
1264     header=$1
1265     condition=$2
1266     shift 2
1267     check_host_cpp "$@" <<EOF
1268 #include <$header>
1269 #if !($condition)
1270 #error "unsatisfied condition: $condition"
1271 #endif
1272 EOF
1273 }
1274
1275 apply(){
1276     file=$1
1277     shift
1278     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1279 }
1280
1281 cp_if_changed(){
1282     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1283     mkdir -p "$(dirname $2)"
1284     $cp_f "$1" "$2"
1285 }
1286
1287 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1288 # system-dependent things.
1289
1290 COMPONENT_LIST="
1291     bsfs
1292     decoders
1293     demuxers
1294     encoders
1295     filters
1296     hwaccels
1297     indevs
1298     muxers
1299     outdevs
1300     parsers
1301     protocols
1302 "
1303
1304 EXAMPLE_LIST="
1305     avio_reading_example
1306     decoding_encoding_example
1307     demuxing_decoding_example
1308     filter_audio_example
1309     filtering_audio_example
1310     filtering_video_example
1311     metadata_example
1312     muxing_example
1313     remuxing_example
1314     resampling_audio_example
1315     scaling_video_example
1316     transcode_aac_example
1317     transcoding_example
1318 "
1319
1320 EXTERNAL_LIBRARY_LIST="
1321     avisynth
1322     bzlib
1323     crystalhd
1324     decklink
1325     frei0r
1326     gnutls
1327     iconv
1328     ladspa
1329     libaacplus
1330     libass
1331     libbluray
1332     libbs2b
1333     libcaca
1334     libcdio
1335     libcelt
1336     libdc1394
1337     libfaac
1338     libfdk_aac
1339     libflite
1340     libfontconfig
1341     libfreetype
1342     libfribidi
1343     libgme
1344     libgsm
1345     libiec61883
1346     libilbc
1347     libmodplug
1348     libmp3lame
1349     libnut
1350     libopencore_amrnb
1351     libopencore_amrwb
1352     libopencv
1353     libopenjpeg
1354     libopus
1355     libpulse
1356     libquvi
1357     librtmp
1358     libschroedinger
1359     libshine
1360     libsmbclient
1361     libsoxr
1362     libspeex
1363     libssh
1364     libstagefright_h264
1365     libtheora
1366     libtwolame
1367     libutvideo
1368     libv4l2
1369     libvidstab
1370     libvo_aacenc
1371     libvo_amrwbenc
1372     libvorbis
1373     libvpx
1374     libwavpack
1375     libwebp
1376     libx264
1377     libx265
1378     libxavs
1379     libxvid
1380     libzmq
1381     libzvbi
1382     openal
1383     opencl
1384     opengl
1385     openssl
1386     x11grab
1387     xlib
1388     zlib
1389 "
1390
1391 DOCUMENT_LIST="
1392     doc
1393     htmlpages
1394     manpages
1395     podpages
1396     txtpages
1397 "
1398
1399 FEATURE_LIST="
1400     ftrapv
1401     gray
1402     hardcoded_tables
1403     runtime_cpudetect
1404     safe_bitstream_reader
1405     shared
1406     small
1407     sram
1408     static
1409     swscale_alpha
1410 "
1411
1412 HWACCEL_LIST="
1413     dxva2
1414     vaapi
1415     vda
1416     vdpau
1417     xvmc
1418 "
1419
1420 LIBRARY_LIST="
1421     avcodec
1422     avdevice
1423     avfilter
1424     avformat
1425     avresample
1426     avutil
1427     postproc
1428     swresample
1429     swscale
1430 "
1431
1432 LICENSE_LIST="
1433     gpl
1434     nonfree
1435     version3
1436 "
1437
1438 PROGRAM_LIST="
1439     ffplay
1440     ffprobe
1441     ffserver
1442     ffmpeg
1443 "
1444
1445 SUBSYSTEM_LIST="
1446     dct
1447     dwt
1448     error_resilience
1449     fast_unaligned
1450     fft
1451     lsp
1452     lzo
1453     mdct
1454     network
1455     rdft
1456 "
1457
1458 CONFIG_LIST="
1459     $COMPONENT_LIST
1460     $DOCUMENT_LIST
1461     $EXAMPLE_LIST
1462     $EXTERNAL_LIBRARY_LIST
1463     $FEATURE_LIST
1464     $HWACCEL_LIST
1465     $LICENSE_LIST
1466     $LIBRARY_LIST
1467     $PROGRAM_LIST
1468     $SUBSYSTEM_LIST
1469     fontconfig
1470     incompatible_libav_abi
1471     memalign_hack
1472     memory_poisoning
1473     neon_clobber_test
1474     pic
1475     pod2man
1476     raise_major
1477     thumb
1478     xmm_clobber_test
1479 "
1480
1481 THREADS_LIST="
1482     pthreads
1483     os2threads
1484     w32threads
1485 "
1486
1487 ATOMICS_LIST="
1488     atomics_gcc
1489     atomics_suncc
1490     atomics_win32
1491 "
1492
1493 ARCH_LIST="
1494     aarch64
1495     alpha
1496     arm
1497     avr32
1498     avr32_ap
1499     avr32_uc
1500     bfin
1501     ia64
1502     m68k
1503     mips
1504     mips64
1505     parisc
1506     ppc
1507     ppc64
1508     s390
1509     sh4
1510     sparc
1511     sparc64
1512     tilegx
1513     tilepro
1514     tomi
1515     x86
1516     x86_32
1517     x86_64
1518 "
1519
1520 ARCH_EXT_LIST_ARM="
1521     armv5te
1522     armv6
1523     armv6t2
1524     armv8
1525     neon
1526     vfp
1527     vfpv3
1528 "
1529
1530 ARCH_EXT_LIST_MIPS="
1531     mipsfpu
1532     mips32r2
1533     mipsdspr1
1534     mipsdspr2
1535 "
1536
1537 ARCH_EXT_LIST_X86_SIMD="
1538     amd3dnow
1539     amd3dnowext
1540     avx
1541     avx2
1542     fma3
1543     fma4
1544     mmx
1545     mmxext
1546     sse
1547     sse2
1548     sse3
1549     sse4
1550     sse42
1551     ssse3
1552     xop
1553 "
1554
1555 ARCH_EXT_LIST_PPC="
1556     altivec
1557     dcbzl
1558     ldbrx
1559     ppc4xx
1560     vsx
1561 "
1562
1563 ARCH_EXT_LIST_X86="
1564     $ARCH_EXT_LIST_X86_SIMD
1565     cpunop
1566     i686
1567 "
1568
1569 ARCH_EXT_LIST="
1570     $ARCH_EXT_LIST_ARM
1571     $ARCH_EXT_LIST_PPC
1572     $ARCH_EXT_LIST_X86
1573     $ARCH_EXT_LIST_MIPS
1574     loongson
1575 "
1576
1577 ARCH_FEATURES="
1578     aligned_stack
1579     fast_64bit
1580     fast_clz
1581     fast_cmov
1582     local_aligned_8
1583     local_aligned_16
1584     local_aligned_32
1585     simd_align_16
1586 "
1587
1588 BUILTIN_LIST="
1589     atomic_cas_ptr
1590     machine_rw_barrier
1591     MemoryBarrier
1592     mm_empty
1593     rdtsc
1594     sarestart
1595     sync_val_compare_and_swap
1596 "
1597 HAVE_LIST_CMDLINE="
1598     inline_asm
1599     symver
1600     yasm
1601 "
1602
1603 HAVE_LIST_PUB="
1604     bigendian
1605     fast_unaligned
1606     incompatible_libav_abi
1607 "
1608
1609 HEADERS_LIST="
1610     alsa_asoundlib_h
1611     altivec_h
1612     arpa_inet_h
1613     asm_types_h
1614     cdio_paranoia_h
1615     cdio_paranoia_paranoia_h
1616     CL_cl_h
1617     dev_bktr_ioctl_bt848_h
1618     dev_bktr_ioctl_meteor_h
1619     dev_ic_bt8xx_h
1620     dev_video_bktr_ioctl_bt848_h
1621     dev_video_meteor_ioctl_meteor_h
1622     direct_h
1623     dlfcn_h
1624     dxva_h
1625     ES2_gl_h
1626     gsm_h
1627     io_h
1628     mach_mach_time_h
1629     machine_ioctl_bt848_h
1630     machine_ioctl_meteor_h
1631     malloc_h
1632     openjpeg_1_5_openjpeg_h
1633     OpenGL_gl3_h
1634     poll_h
1635     sndio_h
1636     soundcard_h
1637     sys_mman_h
1638     sys_param_h
1639     sys_resource_h
1640     sys_select_h
1641     sys_soundcard_h
1642     sys_time_h
1643     sys_un_h
1644     sys_videoio_h
1645     termios_h
1646     unistd_h
1647     windows_h
1648     winsock2_h
1649 "
1650
1651 INTRINSICS_LIST="
1652     intrinsics_neon
1653 "
1654
1655 MATH_FUNCS="
1656     atanf
1657     atan2f
1658     cbrt
1659     cbrtf
1660     cosf
1661     exp2
1662     exp2f
1663     expf
1664     fminf
1665     isinf
1666     isnan
1667     ldexpf
1668     llrint
1669     llrintf
1670     log2
1671     log2f
1672     log10f
1673     lrint
1674     lrintf
1675     powf
1676     rint
1677     round
1678     roundf
1679     sinf
1680     trunc
1681     truncf
1682 "
1683
1684 SYSTEM_FUNCS="
1685     access
1686     aligned_malloc
1687     clock_gettime
1688     closesocket
1689     CommandLineToArgvW
1690     CoTaskMemFree
1691     CryptGenRandom
1692     dlopen
1693     fcntl
1694     flt_lim
1695     fork
1696     getaddrinfo
1697     gethrtime
1698     getopt
1699     GetProcessAffinityMask
1700     GetProcessMemoryInfo
1701     GetProcessTimes
1702     getrusage
1703     getservbyport
1704     GetSystemTimeAsFileTime
1705     gettimeofday
1706     glob
1707     glXGetProcAddress
1708     inet_aton
1709     isatty
1710     jack_port_get_latency_range
1711     kbhit
1712     localtime_r
1713     lzo1x_999_compress
1714     mach_absolute_time
1715     MapViewOfFile
1716     memalign
1717     mkstemp
1718     mmap
1719     mprotect
1720     nanosleep
1721     PeekNamedPipe
1722     posix_memalign
1723     pthread_cancel
1724     sched_getaffinity
1725     SetConsoleTextAttribute
1726     setmode
1727     setrlimit
1728     Sleep
1729     strerror_r
1730     sysconf
1731     sysctl
1732     usleep
1733     VirtualAlloc
1734     wglGetProcAddress
1735 "
1736
1737 TOOLCHAIN_FEATURES="
1738     as_dn_directive
1739     as_func
1740     asm_mod_q
1741     attribute_may_alias
1742     attribute_packed
1743     ebp_available
1744     ebx_available
1745     gnu_as
1746     gnu_windres
1747     ibm_asm
1748     inline_asm_labels
1749     inline_asm_nonlocal_labels
1750     inline_asm_direct_symbol_refs
1751     pragma_deprecated
1752     rsync_contimeout
1753     symver_asm_label
1754     symver_gnu_asm
1755     vfp_args
1756     xform_asm
1757     xmm_clobbers
1758 "
1759
1760 TYPES_LIST="
1761     socklen_t
1762     struct_addrinfo
1763     struct_group_source_req
1764     struct_ip_mreq_source
1765     struct_ipv6_mreq
1766     struct_pollfd
1767     struct_rusage_ru_maxrss
1768     struct_sctp_event_subscribe
1769     struct_sockaddr_in6
1770     struct_sockaddr_sa_len
1771     struct_sockaddr_storage
1772     struct_stat_st_mtim_tv_nsec
1773     struct_v4l2_frmivalenum_discrete
1774 "
1775
1776 HAVE_LIST="
1777     $ARCH_EXT_LIST
1778     $(add_suffix _external $ARCH_EXT_LIST)
1779     $(add_suffix _inline   $ARCH_EXT_LIST)
1780     $ARCH_FEATURES
1781     $ATOMICS_LIST
1782     $BUILTIN_LIST
1783     $HAVE_LIST_CMDLINE
1784     $HAVE_LIST_PUB
1785     $HEADERS_LIST
1786     $INTRINSICS_LIST
1787     $MATH_FUNCS
1788     $SYSTEM_FUNCS
1789     $THREADS_LIST
1790     $TOOLCHAIN_FEATURES
1791     $TYPES_LIST
1792     atomics_native
1793     dos_paths
1794     dxva2api_cobj
1795     dxva2_lib
1796     libc_msvcrt
1797     libdc1394_1
1798     libdc1394_2
1799     makeinfo
1800     perl
1801     pod2man
1802     sdl
1803     texi2html
1804     threads
1805     vdpau_x11
1806     xlib
1807 "
1808
1809 # options emitted with CONFIG_ prefix but not available on the command line
1810 CONFIG_EXTRA="
1811     aandcttables
1812     ac3dsp
1813     audio_frame_queue
1814     audiodsp
1815     blockdsp
1816     bswapdsp
1817     cabac
1818     dvprofile
1819     exif
1820     fdctdsp
1821     frame_thread_encoder
1822     gcrypt
1823     golomb
1824     gplv3
1825     h263dsp
1826     h264chroma
1827     h264dsp
1828     h264pred
1829     h264qpel
1830     hpeldsp
1831     huffman
1832     huffyuvdsp
1833     huffyuvencdsp
1834     idctdsp
1835     iirfilter
1836     intrax8
1837     lgplv3
1838     llauddsp
1839     llviddsp
1840     lpc
1841     me_cmp
1842     mpeg_er
1843     mpegaudio
1844     mpegaudiodsp
1845     mpegvideo
1846     mpegvideoenc
1847     nettle
1848     pixblockdsp
1849     qpeldsp
1850     rangecoder
1851     riffdec
1852     riffenc
1853     rtpdec
1854     rtpenc_chain
1855     sinewin
1856     tpeldsp
1857     videodsp
1858     vp3dsp
1859 "
1860
1861 CMDLINE_SELECT="
1862     $ARCH_EXT_LIST
1863     $CONFIG_LIST
1864     $HAVE_LIST_CMDLINE
1865     $THREADS_LIST
1866     asm
1867     cross_compile
1868     debug
1869     extra_warnings
1870     logging
1871     lto
1872     optimizations
1873     rpath
1874     stripping
1875 "
1876
1877 PATHS_LIST="
1878     bindir
1879     datadir
1880     docdir
1881     incdir
1882     libdir
1883     mandir
1884     prefix
1885     shlibdir
1886 "
1887
1888 CMDLINE_SET="
1889     $PATHS_LIST
1890     ar
1891     arch
1892     as
1893     assert_level
1894     build_suffix
1895     cc
1896     cpu
1897     cross_prefix
1898     cxx
1899     dep_cc
1900     doxygen
1901     extra_version
1902     gas
1903     host_cc
1904     host_cflags
1905     host_ld
1906     host_ldflags
1907     host_libs
1908     host_os
1909     install
1910     ld
1911     logfile
1912     malloc_prefix
1913     nm
1914     optflags
1915     pkg_config
1916     pkg_config_flags
1917     progs_suffix
1918     random_seed
1919     ranlib
1920     samples
1921     strip
1922     sws_max_filter_size
1923     sysinclude
1924     sysroot
1925     target_exec
1926     target_os
1927     target_path
1928     target_samples
1929     tempprefix
1930     toolchain
1931     valgrind
1932     yasmexe
1933 "
1934
1935 CMDLINE_APPEND="
1936     extra_cflags
1937     extra_cxxflags
1938     host_cppflags
1939 "
1940
1941 # code dependency declarations
1942
1943 # architecture extensions
1944
1945 armv5te_deps="arm"
1946 armv6_deps="arm"
1947 armv6t2_deps="arm"
1948 armv8_deps="aarch64"
1949 neon_deps_any="aarch64 arm"
1950 intrinsics_neon_deps="neon"
1951 vfp_deps_any="aarch64 arm"
1952 vfpv3_deps="vfp"
1953
1954 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1955
1956 mipsfpu_deps="mips"
1957 mips32r2_deps="mips"
1958 mipsdspr1_deps="mips"
1959 mipsdspr2_deps="mips"
1960
1961 altivec_deps="ppc"
1962 ppc4xx_deps="ppc"
1963 vsx_deps="ppc"
1964
1965 cpunop_deps="i686"
1966 x86_64_select="i686"
1967 x86_64_suggest="fast_cmov"
1968
1969 amd3dnow_deps="mmx"
1970 amd3dnowext_deps="amd3dnow"
1971 i686_deps="x86"
1972 mmx_deps="x86"
1973 mmxext_deps="mmx"
1974 sse_deps="mmxext"
1975 sse2_deps="sse"
1976 sse3_deps="sse2"
1977 ssse3_deps="sse3"
1978 sse4_deps="ssse3"
1979 sse42_deps="sse4"
1980 avx_deps="sse42"
1981 xop_deps="avx"
1982 fma3_deps="avx"
1983 fma4_deps="avx"
1984 avx2_deps="avx"
1985
1986 mmx_external_deps="yasm"
1987 mmx_inline_deps="inline_asm"
1988 mmx_suggest="mmx_external mmx_inline"
1989
1990 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1991     eval dep=\$${ext}_deps
1992     eval ${ext}_external_deps='"${dep}_external"'
1993     eval ${ext}_inline_deps='"${dep}_inline"'
1994     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1995 done
1996
1997 aligned_stack_if_any="aarch64 ppc x86"
1998 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1999 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2000 fast_unaligned_if_any="aarch64 ppc x86"
2001 simd_align_16_if_any="altivec neon sse"
2002
2003 # system capabilities
2004
2005 symver_if_any="symver_asm_label symver_gnu_asm"
2006
2007 # threading support
2008 atomics_gcc_if="sync_val_compare_and_swap"
2009 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2010 atomics_win32_if="MemoryBarrier"
2011 atomics_native_if_any="$ATOMICS_LIST"
2012 w32threads_deps="atomics_native"
2013 threads_if_any="$THREADS_LIST"
2014
2015 # subsystems
2016 dct_select="rdft"
2017 error_resilience_select="me_cmp"
2018 frame_thread_encoder_deps="encoders threads"
2019 intrax8_select="error_resilience"
2020 mdct_select="fft"
2021 rdft_select="fft"
2022 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2023 mpeg_er_select="error_resilience"
2024 mpegaudio_select="mpegaudiodsp"
2025 mpegaudiodsp_select="dct"
2026 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2027 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2028
2029 # decoders / encoders
2030 aac_decoder_select="mdct sinewin"
2031 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2032 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2033 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2034 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2035 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2036 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2037 aic_decoder_select="golomb idctdsp"
2038 alac_encoder_select="lpc"
2039 als_decoder_select="bswapdsp"
2040 amrnb_decoder_select="lsp"
2041 amrwb_decoder_select="lsp"
2042 amv_decoder_select="sp5x_decoder exif"
2043 amv_encoder_select="aandcttables mpegvideoenc"
2044 ape_decoder_select="bswapdsp llauddsp"
2045 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2046 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2047 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2048 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2049 atrac1_decoder_select="mdct sinewin"
2050 atrac3_decoder_select="mdct"
2051 atrac3p_decoder_select="mdct sinewin"
2052 avrn_decoder_select="exif"
2053 bink_decoder_select="blockdsp hpeldsp"
2054 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
2055 binkaudio_rdft_decoder_select="mdct rdft sinewin"
2056 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2057 cllc_decoder_select="bswapdsp"
2058 comfortnoise_encoder_select="lpc"
2059 cook_decoder_select="audiodsp mdct sinewin"
2060 cscd_decoder_select="lzo"
2061 cscd_decoder_suggest="zlib"
2062 dca_decoder_select="mdct"
2063 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2064 dnxhd_decoder_select="blockdsp idctdsp"
2065 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2066 dvvideo_decoder_select="dvprofile idctdsp"
2067 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2068 dxa_decoder_select="zlib"
2069 eac3_decoder_select="ac3_decoder"
2070 eac3_encoder_select="ac3_encoder"
2071 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2072 eatgq_decoder_select="aandcttables"
2073 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2074 exr_decoder_select="zlib"
2075 ffv1_decoder_select="golomb rangecoder"
2076 ffv1_encoder_select="rangecoder"
2077 ffvhuff_decoder_select="huffyuv_decoder"
2078 ffvhuff_encoder_select="huffyuv_encoder"
2079 fic_decoder_select="golomb"
2080 flac_decoder_select="golomb"
2081 flac_encoder_select="bswapdsp golomb lpc"
2082 flashsv_decoder_select="zlib"
2083 flashsv_encoder_select="zlib"
2084 flashsv2_encoder_select="zlib"
2085 flashsv2_decoder_select="zlib"
2086 flv_decoder_select="h263_decoder"
2087 flv_encoder_select="h263_encoder"
2088 fourxm_decoder_select="blockdsp bswapdsp"
2089 fraps_decoder_select="bswapdsp huffman"
2090 g2m_decoder_select="blockdsp idctdsp zlib"
2091 g729_decoder_select="audiodsp"
2092 h261_decoder_select="mpeg_er mpegvideo"
2093 h261_encoder_select="aandcttables mpegvideoenc"
2094 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2095 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2096 h263i_decoder_select="h263_decoder"
2097 h263p_encoder_select="h263_encoder"
2098 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2099 h264_decoder_suggest="error_resilience"
2100 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2101 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2102 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2103 iac_decoder_select="imc_decoder"
2104 imc_decoder_select="bswapdsp fft mdct sinewin"
2105 indeo3_decoder_select="hpeldsp"
2106 interplay_video_decoder_select="hpeldsp"
2107 jpegls_decoder_select="golomb mjpeg_decoder"
2108 jpegls_encoder_select="golomb"
2109 jv_decoder_select="blockdsp"
2110 lagarith_decoder_select="huffyuvdsp"
2111 ljpeg_encoder_select="aandcttables idctdsp"
2112 loco_decoder_select="golomb"
2113 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2114 metasound_decoder_select="lsp mdct sinewin"
2115 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2116 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2117 mjpeg_encoder_select="aandcttables mpegvideoenc"
2118 mjpegb_decoder_select="mjpeg_decoder"
2119 mlp_decoder_select="mlp_parser"
2120 motionpixels_decoder_select="bswapdsp"
2121 mp1_decoder_select="mpegaudio"
2122 mp1float_decoder_select="mpegaudio"
2123 mp2_decoder_select="mpegaudio"
2124 mp2float_decoder_select="mpegaudio"
2125 mp3_decoder_select="mpegaudio"
2126 mp3adu_decoder_select="mpegaudio"
2127 mp3adufloat_decoder_select="mpegaudio"
2128 mp3float_decoder_select="mpegaudio"
2129 mp3on4_decoder_select="mpegaudio"
2130 mp3on4float_decoder_select="mpegaudio"
2131 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2132 mpc8_decoder_select="mpegaudiodsp"
2133 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2134 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2135 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2136 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2137 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2138 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2139 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2140 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2141 mpeg4_encoder_select="h263_encoder"
2142 msmpeg4v1_decoder_select="h263_decoder"
2143 msmpeg4v2_decoder_select="h263_decoder"
2144 msmpeg4v2_encoder_select="h263_encoder"
2145 msmpeg4v3_decoder_select="h263_decoder"
2146 msmpeg4v3_encoder_select="h263_encoder"
2147 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2148 mxpeg_decoder_select="mjpeg_decoder"
2149 nellymoser_decoder_select="mdct sinewin"
2150 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2151 nuv_decoder_select="idctdsp lzo"
2152 on2avc_decoder_select="mdct"
2153 opus_decoder_deps="swresample"
2154 png_decoder_select="zlib"
2155 png_encoder_select="huffyuvencdsp zlib"
2156 prores_decoder_select="blockdsp idctdsp"
2157 prores_encoder_select="fdctdsp"
2158 qcelp_decoder_select="lsp"
2159 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2160 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2161 ra_144_decoder_select="audiodsp"
2162 ralf_decoder_select="golomb"
2163 rawvideo_decoder_select="bswapdsp"
2164 rtjpeg_decoder_select="me_cmp"
2165 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2166 rv10_encoder_select="h263_encoder"
2167 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2168 rv20_encoder_select="h263_encoder"
2169 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2170 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2171 shorten_decoder_select="golomb"
2172 sipr_decoder_select="lsp"
2173 snow_decoder_select="dwt h264qpel hpeldsp rangecoder"
2174 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2175 sonic_decoder_select="golomb rangecoder"
2176 sonic_encoder_select="golomb rangecoder"
2177 sonic_ls_encoder_select="golomb rangecoder"
2178 sp5x_decoder_select="mjpeg_decoder"
2179 svq1_decoder_select="hpeldsp"
2180 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2181 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2182 svq3_decoder_suggest="zlib"
2183 tak_decoder_select="audiodsp"
2184 theora_decoder_select="vp3_decoder"
2185 thp_decoder_select="mjpeg_decoder"
2186 tiff_decoder_suggest="zlib"
2187 tiff_encoder_suggest="zlib"
2188 truehd_decoder_select="mlp_parser"
2189 truemotion2_decoder_select="bswapdsp"
2190 truespeech_decoder_select="bswapdsp"
2191 tscc_decoder_select="zlib"
2192 twinvq_decoder_select="mdct lsp sinewin"
2193 utvideo_decoder_select="bswapdsp"
2194 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2195 vble_decoder_select="huffyuvdsp"
2196 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp"
2197 vc1image_decoder_select="vc1_decoder"
2198 vorbis_decoder_select="mdct"
2199 vorbis_encoder_select="mdct"
2200 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2201 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2202 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2203 vp6a_decoder_select="vp6_decoder"
2204 vp6f_decoder_select="vp6_decoder"
2205 vp7_decoder_select="h264pred videodsp"
2206 vp8_decoder_select="h264pred videodsp"
2207 vp9_decoder_select="videodsp vp9_parser"
2208 webp_decoder_select="vp8_decoder"
2209 wmalossless_decoder_select="llauddsp"
2210 wmapro_decoder_select="mdct sinewin"
2211 wmav1_decoder_select="mdct sinewin"
2212 wmav1_encoder_select="mdct sinewin"
2213 wmav2_decoder_select="mdct sinewin"
2214 wmav2_encoder_select="mdct sinewin"
2215 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2216 wmv1_decoder_select="h263_decoder"
2217 wmv1_encoder_select="h263_encoder"
2218 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2219 wmv2_encoder_select="h263_encoder"
2220 wmv3_decoder_select="vc1_decoder"
2221 wmv3image_decoder_select="wmv3_decoder"
2222 zerocodec_decoder_select="zlib"
2223 zlib_decoder_select="zlib"
2224 zlib_encoder_select="zlib"
2225 zmbv_decoder_select="zlib"
2226 zmbv_encoder_select="zlib"
2227
2228 # hardware accelerators
2229 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2230 dxva2_deps="dxva2api_h"
2231 vaapi_deps="va_va_h"
2232 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2233 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2234 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2235 xvmc_deps="X11_extensions_XvMClib_h"
2236
2237 h263_vaapi_hwaccel_deps="vaapi"
2238 h263_vaapi_hwaccel_select="h263_decoder"
2239 h263_vdpau_hwaccel_deps="vdpau"
2240 h263_vdpau_hwaccel_select="h263_decoder"
2241 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2242 h264_dxva2_hwaccel_deps="dxva2"
2243 h264_dxva2_hwaccel_select="h264_decoder"
2244 h264_vaapi_hwaccel_deps="vaapi"
2245 h264_vaapi_hwaccel_select="h264_decoder"
2246 h264_vda_decoder_deps="vda"
2247 h264_vda_decoder_select="h264_decoder"
2248 h264_vda_hwaccel_deps="vda"
2249 h264_vda_hwaccel_select="h264_decoder"
2250 h264_vda_old_hwaccel_deps="vda"
2251 h264_vda_old_hwaccel_select="h264_decoder"
2252 h264_vdpau_decoder_deps="vdpau"
2253 h264_vdpau_decoder_select="h264_decoder"
2254 h264_vdpau_hwaccel_deps="vdpau"
2255 h264_vdpau_hwaccel_select="h264_decoder"
2256 mpeg_vdpau_decoder_deps="vdpau"
2257 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2258 mpeg_xvmc_hwaccel_deps="xvmc"
2259 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2260 mpeg1_vdpau_decoder_deps="vdpau"
2261 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2262 mpeg1_vdpau_hwaccel_deps="vdpau"
2263 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2264 mpeg1_xvmc_hwaccel_deps="xvmc"
2265 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2266 mpeg2_crystalhd_decoder_select="crystalhd"
2267 mpeg2_dxva2_hwaccel_deps="dxva2"
2268 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2269 mpeg2_vaapi_hwaccel_deps="vaapi"
2270 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2271 mpeg2_vdpau_hwaccel_deps="vdpau"
2272 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2273 mpeg2_xvmc_hwaccel_deps="xvmc"
2274 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2275 mpeg4_crystalhd_decoder_select="crystalhd"
2276 mpeg4_vaapi_hwaccel_deps="vaapi"
2277 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2278 mpeg4_vdpau_decoder_deps="vdpau"
2279 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2280 mpeg4_vdpau_hwaccel_deps="vdpau"
2281 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2282 msmpeg4_crystalhd_decoder_select="crystalhd"
2283 vc1_crystalhd_decoder_select="crystalhd"
2284 vc1_dxva2_hwaccel_deps="dxva2"
2285 vc1_dxva2_hwaccel_select="vc1_decoder"
2286 vc1_vaapi_hwaccel_deps="vaapi"
2287 vc1_vaapi_hwaccel_select="vc1_decoder"
2288 vc1_vdpau_decoder_deps="vdpau"
2289 vc1_vdpau_decoder_select="vc1_decoder"
2290 vc1_vdpau_hwaccel_deps="vdpau"
2291 vc1_vdpau_hwaccel_select="vc1_decoder"
2292 wmv3_crystalhd_decoder_select="crystalhd"
2293 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2294 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2295 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2296 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2297
2298 # parsers
2299 h264_parser_select="h264_decoder"
2300 hevc_parser_select="hevc_decoder"
2301 mpegvideo_parser_select="mpegvideo"
2302 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2303 vc1_parser_select="mpegvideo vc1_decoder"
2304
2305 # external libraries
2306 libaacplus_encoder_deps="libaacplus"
2307 libcelt_decoder_deps="libcelt"
2308 libfaac_encoder_deps="libfaac"
2309 libfaac_encoder_select="audio_frame_queue"
2310 libfdk_aac_decoder_deps="libfdk_aac"
2311 libfdk_aac_encoder_deps="libfdk_aac"
2312 libfdk_aac_encoder_select="audio_frame_queue"
2313 libgme_demuxer_deps="libgme"
2314 libgsm_decoder_deps="libgsm"
2315 libgsm_encoder_deps="libgsm"
2316 libgsm_ms_decoder_deps="libgsm"
2317 libgsm_ms_encoder_deps="libgsm"
2318 libilbc_decoder_deps="libilbc"
2319 libilbc_encoder_deps="libilbc"
2320 libmodplug_demuxer_deps="libmodplug"
2321 libmp3lame_encoder_deps="libmp3lame"
2322 libmp3lame_encoder_select="audio_frame_queue"
2323 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2324 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2325 libopencore_amrnb_encoder_select="audio_frame_queue"
2326 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2327 libopenjpeg_decoder_deps="libopenjpeg"
2328 libopenjpeg_encoder_deps="libopenjpeg"
2329 libopus_decoder_deps="libopus"
2330 libopus_encoder_deps="libopus"
2331 libopus_encoder_select="audio_frame_queue"
2332 libquvi_demuxer_deps="libquvi"
2333 libschroedinger_decoder_deps="libschroedinger"
2334 libschroedinger_encoder_deps="libschroedinger"
2335 libshine_encoder_deps="libshine"
2336 libshine_encoder_select="audio_frame_queue"
2337 libspeex_decoder_deps="libspeex"
2338 libspeex_encoder_deps="libspeex"
2339 libspeex_encoder_select="audio_frame_queue"
2340 libstagefright_h264_decoder_deps="libstagefright_h264"
2341 libtheora_encoder_deps="libtheora"
2342 libtwolame_encoder_deps="libtwolame"
2343 libvo_aacenc_encoder_deps="libvo_aacenc"
2344 libvo_aacenc_encoder_select="audio_frame_queue"
2345 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2346 libvorbis_decoder_deps="libvorbis"
2347 libvorbis_encoder_deps="libvorbis"
2348 libvorbis_encoder_select="audio_frame_queue"
2349 libvpx_vp8_decoder_deps="libvpx"
2350 libvpx_vp8_encoder_deps="libvpx"
2351 libvpx_vp9_decoder_deps="libvpx"
2352 libvpx_vp9_encoder_deps="libvpx"
2353 libwavpack_encoder_deps="libwavpack"
2354 libwebp_encoder_deps="libwebp"
2355 libx264_encoder_deps="libx264"
2356 libx264rgb_encoder_deps="libx264"
2357 libx265_encoder_deps="libx265"
2358 libxavs_encoder_deps="libxavs"
2359 libxvid_encoder_deps="libxvid"
2360 libutvideo_decoder_deps="libutvideo"
2361 libutvideo_encoder_deps="libutvideo"
2362 libzvbi_teletext_decoder_deps="libzvbi"
2363
2364 # demuxers / muxers
2365 ac3_demuxer_select="ac3_parser"
2366 asf_demuxer_select="riffdec"
2367 asf_muxer_select="riffenc"
2368 asf_stream_muxer_select="asf_muxer"
2369 avi_demuxer_select="riffdec exif"
2370 avi_muxer_select="riffenc"
2371 avisynth_demuxer_deps="avisynth"
2372 avisynth_demuxer_select="riffdec"
2373 caf_demuxer_select="riffdec"
2374 dirac_demuxer_select="dirac_parser"
2375 dts_demuxer_select="dca_parser"
2376 dtshd_demuxer_select="dca_parser"
2377 dv_demuxer_select="dvprofile"
2378 dv_muxer_select="dvprofile"
2379 dxa_demuxer_select="riffdec"
2380 eac3_demuxer_select="ac3_parser"
2381 f4v_muxer_select="mov_muxer"
2382 flac_demuxer_select="flac_parser"
2383 hds_muxer_select="flv_muxer"
2384 hls_muxer_select="mpegts_muxer"
2385 image2_alias_pix_demuxer_select="image2_demuxer"
2386 image2_brender_pix_demuxer_select="image2_demuxer"
2387 ipod_muxer_select="mov_muxer"
2388 ismv_muxer_select="mov_muxer"
2389 libnut_demuxer_deps="libnut"
2390 libnut_muxer_deps="libnut"
2391 matroska_audio_muxer_select="matroska_muxer"
2392 matroska_demuxer_select="riffdec"
2393 matroska_demuxer_suggest="bzlib lzo zlib"
2394 matroska_muxer_select="riffenc"
2395 mmf_muxer_select="riffenc"
2396 mov_demuxer_select="riffdec"
2397 mov_demuxer_suggest="zlib"
2398 mov_muxer_select="riffenc rtpenc_chain"
2399 mp3_demuxer_select="mpegaudio_parser"
2400 mp4_muxer_select="mov_muxer"
2401 mpegts_muxer_select="adts_muxer latm_muxer"
2402 mpegtsraw_demuxer_select="mpegts_demuxer"
2403 mxf_d10_muxer_select="mxf_muxer"
2404 nut_muxer_select="riffenc"
2405 nuv_demuxer_select="riffdec"
2406 ogg_demuxer_select="golomb"
2407 psp_muxer_select="mov_muxer"
2408 rtp_demuxer_select="sdp_demuxer"
2409 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2410 rtsp_demuxer_select="http_protocol rtpdec"
2411 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2412 sap_demuxer_select="sdp_demuxer"
2413 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2414 sdp_demuxer_select="rtpdec"
2415 smoothstreaming_muxer_select="ismv_muxer"
2416 spdif_muxer_select="aac_parser"
2417 tak_demuxer_select="tak_parser"
2418 tg2_muxer_select="mov_muxer"
2419 tgp_muxer_select="mov_muxer"
2420 vobsub_demuxer_select="mpegps_demuxer"
2421 w64_demuxer_select="wav_demuxer"
2422 w64_muxer_select="wav_muxer"
2423 wav_demuxer_select="riffdec"
2424 wav_muxer_select="riffenc"
2425 webm_muxer_select="riffenc"
2426 wtv_demuxer_select="riffdec"
2427 wtv_muxer_select="riffenc"
2428 xmv_demuxer_select="riffdec"
2429 xwma_demuxer_select="riffdec"
2430
2431 # indevs / outdevs
2432 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2433 alsa_outdev_deps="alsa_asoundlib_h"
2434 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2435 avfoundation_indev_select="avfoundation"
2436 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2437 caca_outdev_deps="libcaca"
2438 decklink_outdev_deps="decklink pthreads"
2439 decklink_outdev_extralibs="-lstdc++"
2440 dshow_indev_deps="IBaseFilter"
2441 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2442 dv1394_indev_deps="dv1394"
2443 dv1394_indev_select="dv_demuxer"
2444 fbdev_indev_deps="linux_fb_h"
2445 fbdev_outdev_deps="linux_fb_h"
2446 gdigrab_indev_deps="CreateDIBSection"
2447 gdigrab_indev_extralibs="-lgdi32"
2448 gdigrab_indev_select="bmp_decoder"
2449 iec61883_indev_deps="libiec61883"
2450 jack_indev_deps="jack_jack_h sem_timedwait"
2451 lavfi_indev_deps="avfilter"
2452 libcdio_indev_deps="libcdio"
2453 libdc1394_indev_deps="libdc1394"
2454 libv4l2_indev_deps="libv4l2"
2455 openal_indev_deps="openal"
2456 opengl_outdev_deps="opengl"
2457 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2458 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2459 pulse_indev_deps="libpulse"
2460 pulse_outdev_deps="libpulse"
2461 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2462 qtkit_indev_select="qtkit"
2463 sdl_outdev_deps="sdl"
2464 sndio_indev_deps="sndio_h"
2465 sndio_outdev_deps="sndio_h"
2466 v4l_indev_deps="linux_videodev_h"
2467 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2468 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2469 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2470 vfwcap_indev_extralibs="-lavicap32"
2471 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2472 xv_outdev_extralibs="-lXv -lX11 -lXext"
2473 x11grab_indev_deps="x11grab"
2474
2475 # protocols
2476 bluray_protocol_deps="libbluray"
2477 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2478 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2479 ffrtmpcrypt_protocol_select="tcp_protocol"
2480 ffrtmphttp_protocol_deps="!librtmp_protocol"
2481 ffrtmphttp_protocol_select="http_protocol"
2482 ftp_protocol_select="tcp_protocol"
2483 gopher_protocol_select="network"
2484 http_protocol_select="tcp_protocol"
2485 httpproxy_protocol_select="tcp_protocol"
2486 https_protocol_select="tls_protocol"
2487 icecast_protocol_select="http_protocol"
2488 librtmp_protocol_deps="librtmp"
2489 librtmpe_protocol_deps="librtmp"
2490 librtmps_protocol_deps="librtmp"
2491 librtmpt_protocol_deps="librtmp"
2492 librtmpte_protocol_deps="librtmp"
2493 libsmbclient_protocol_deps="libsmbclient gplv3"
2494 libssh_protocol_deps="libssh"
2495 mmsh_protocol_select="http_protocol"
2496 mmst_protocol_select="network"
2497 rtmp_protocol_deps="!librtmp_protocol"
2498 rtmp_protocol_select="tcp_protocol"
2499 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2500 rtmps_protocol_deps="!librtmp_protocol"
2501 rtmps_protocol_select="tls_protocol"
2502 rtmpt_protocol_select="ffrtmphttp_protocol"
2503 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2504 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2505 rtp_protocol_select="udp_protocol"
2506 sctp_protocol_deps="struct_sctp_event_subscribe"
2507 sctp_protocol_select="network"
2508 srtp_protocol_select="rtp_protocol"
2509 tcp_protocol_select="network"
2510 tls_protocol_deps_any="openssl gnutls"
2511 tls_protocol_select="tcp_protocol"
2512 udp_protocol_select="network"
2513 unix_protocol_deps="sys_un_h"
2514 unix_protocol_select="network"
2515
2516 # filters
2517 aconvert_filter_deps="swresample"
2518 amovie_filter_deps="avcodec avformat"
2519 aresample_filter_deps="swresample"
2520 ass_filter_deps="libass"
2521 asyncts_filter_deps="avresample"
2522 atempo_filter_deps="avcodec"
2523 atempo_filter_select="rdft"
2524 azmq_filter_deps="libzmq"
2525 blackframe_filter_deps="gpl"
2526 boxblur_filter_deps="gpl"
2527 bs2b_filter_deps="libbs2b"
2528 colormatrix_filter_deps="gpl"
2529 cropdetect_filter_deps="gpl"
2530 dctdnoiz_filter_deps="avcodec"
2531 dctdnoiz_filter_select="dct"
2532 delogo_filter_deps="gpl"
2533 deshake_filter_deps="avcodec"
2534 deshake_filter_select="me_cmp"
2535 drawtext_filter_deps="libfreetype"
2536 ebur128_filter_deps="gpl"
2537 flite_filter_deps="libflite"
2538 frei0r_filter_deps="frei0r dlopen"
2539 frei0r_filter_extralibs='$ldl'
2540 frei0r_src_filter_deps="frei0r dlopen"
2541 frei0r_src_filter_extralibs='$ldl'
2542 geq_filter_deps="gpl"
2543 histeq_filter_deps="gpl"
2544 hqdn3d_filter_deps="gpl"
2545 interlace_filter_deps="gpl"
2546 kerndeint_filter_deps="gpl"
2547 ladspa_filter_deps="ladspa dlopen"
2548 ladspa_filter_extralibs='$ldl'
2549 mcdeint_filter_deps="avcodec gpl"
2550 movie_filter_deps="avcodec avformat"
2551 mp_filter_deps="gpl avcodec swscale inline_asm"
2552 mpdecimate_filter_deps="gpl avcodec"
2553 mpdecimate_filter_select="me_cmp pixblockdsp"
2554 mptestsrc_filter_deps="gpl"
2555 negate_filter_deps="lut_filter"
2556 perspective_filter_deps="gpl"
2557 ocv_filter_deps="libopencv"
2558 owdenoise_filter_deps="gpl"
2559 pan_filter_deps="swresample"
2560 phase_filter_deps="gpl"
2561 pp_filter_deps="gpl postproc"
2562 pullup_filter_deps="gpl"
2563 removelogo_filter_deps="avcodec avformat swscale"
2564 resample_filter_deps="avresample"
2565 sab_filter_deps="gpl swscale"
2566 scale_filter_deps="swscale"
2567 smartblur_filter_deps="gpl swscale"
2568 showspectrum_filter_deps="avcodec"
2569 showspectrum_filter_select="rdft"
2570 spp_filter_deps="gpl avcodec"
2571 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2572 stereo3d_filter_deps="gpl"
2573 subtitles_filter_deps="avformat avcodec libass"
2574 super2xsai_filter_deps="gpl"
2575 tinterlace_filter_deps="gpl"
2576 vidstabdetect_filter_deps="libvidstab"
2577 vidstabtransform_filter_deps="libvidstab"
2578 pixfmts_super2xsai_test_deps="super2xsai_filter"
2579 tinterlace_merge_test_deps="tinterlace_filter"
2580 tinterlace_pad_test_deps="tinterlace_filter"
2581 zmq_filter_deps="libzmq"
2582 zoompan_filter_deps="swscale"
2583
2584 # examples
2585 avio_reading="avformat avcodec avutil"
2586 avcodec_example_deps="avcodec avutil"
2587 demuxing_decoding_example_deps="avcodec avformat avutil"
2588 filter_audio_example_deps="avfilter avutil"
2589 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2590 filtering_video_example_deps="avfilter avcodec avformat avutil"
2591 metadata_example_deps="avformat avutil"
2592 muxing_example_deps="avcodec avformat avutil swscale"
2593 remuxing_example_deps="avcodec avformat avutil"
2594 resampling_audio_example_deps="avutil swresample"
2595 scaling_video_example_deps="avutil swscale"
2596 transcode_aac_example_deps="avcodec avformat swresample"
2597 transcoding_example_deps="avfilter avcodec avformat avutil"
2598
2599 # libraries, in linking order
2600 avcodec_deps="avutil"
2601 avdevice_deps="avformat avcodec avutil"
2602 avfilter_deps="avutil"
2603 avformat_deps="avcodec avutil"
2604 avresample_deps="avutil"
2605 postproc_deps="avutil gpl"
2606 swresample_deps="avutil"
2607 swscale_deps="avutil"
2608
2609 # programs
2610 ffmpeg_deps="avcodec avfilter avformat swresample"
2611 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2612                null_filter
2613                setpts_filter trim_filter"
2614 ffplay_deps="avcodec avformat swscale swresample sdl"
2615 ffplay_libs='$sdl_libs'
2616 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2617 ffprobe_deps="avcodec avformat"
2618 ffserver_deps="avformat fork sarestart"
2619 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2620
2621 # documentation
2622 podpages_deps="perl"
2623 manpages_deps="perl pod2man"
2624 htmlpages_deps="perl texi2html"
2625 txtpages_deps="perl makeinfo"
2626 doc_deps_any="manpages htmlpages podpages txtpages"
2627
2628 # default parameters
2629
2630 logfile="config.log"
2631
2632 # installation paths
2633 prefix_default="/usr/local"
2634 bindir_default='${prefix}/bin'
2635 datadir_default='${prefix}/share/ffmpeg'
2636 docdir_default='${prefix}/share/doc/ffmpeg'
2637 incdir_default='${prefix}/include'
2638 libdir_default='${prefix}/lib'
2639 mandir_default='${prefix}/share/man'
2640 shlibdir_default="$libdir_default"
2641
2642 # toolchain
2643 ar_default="ar"
2644 cc_default="gcc"
2645 cxx_default="g++"
2646 host_cc_default="gcc"
2647 cp_f="cp -f"
2648 doxygen_default="doxygen"
2649 install="install"
2650 ln_s="ln -s -f"
2651 nm_default="nm -g"
2652 objformat="elf"
2653 pkg_config_default=pkg-config
2654 ranlib_default="ranlib"
2655 strip_default="strip"
2656 yasmexe_default="yasm"
2657 windres_default="windres"
2658
2659 nogas=":"
2660
2661 # OS
2662 target_os_default=$(tolower $(uname -s))
2663 host_os=$target_os_default
2664
2665 # machine
2666 if test "$target_os_default" = aix; then
2667     arch_default=$(uname -p)
2668     strip_default="strip -X32_64"
2669 else
2670     arch_default=$(uname -m)
2671 fi
2672 cpu="generic"
2673 intrinsics="none"
2674
2675 # configurable options
2676 enable $PROGRAM_LIST
2677 enable $DOCUMENT_LIST
2678 enable $EXAMPLE_LIST
2679 enable $(filter_out avresample $LIBRARY_LIST)
2680 enable stripping
2681
2682 enable asm
2683 enable debug
2684 enable doc
2685 enable optimizations
2686 enable runtime_cpudetect
2687 enable safe_bitstream_reader
2688 enable static
2689 enable swscale_alpha
2690
2691 sws_max_filter_size_default=256
2692 set_default sws_max_filter_size
2693
2694 # Enable hwaccels by default.
2695 enable dxva2 vaapi vda vdpau xvmc
2696 enable xlib
2697
2698 # build settings
2699 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2700 LIBPREF="lib"
2701 LIBSUF=".a"
2702 FULLNAME='$(NAME)$(BUILDSUF)'
2703 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2704 SLIBPREF="lib"
2705 SLIBSUF=".so"
2706 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2707 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2708 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2709 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2710 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2711 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2712
2713 asflags_filter=echo
2714 cflags_filter=echo
2715 ldflags_filter=echo
2716
2717 AS_C='-c'
2718 AS_O='-o $@'
2719 CC_C='-c'
2720 CC_E='-E -o $@'
2721 CC_O='-o $@'
2722 CXX_C='-c'
2723 CXX_O='-o $@'
2724 LD_O='-o $@'
2725 LD_LIB='-l%'
2726 LD_PATH='-L'
2727 HOSTCC_C='-c'
2728 HOSTCC_E='-E -o $@'
2729 HOSTCC_O='-o $@'
2730 HOSTLD_O='-o $@'
2731
2732 host_libs='-lm'
2733 host_cflags_filter=echo
2734 host_ldflags_filter=echo
2735
2736 target_path='$(CURDIR)'
2737
2738 # since the object filename is not given with the -MM flag, the compiler
2739 # is only able to print the basename, and we must add the path ourselves
2740 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2741 DEPFLAGS='-MM'
2742
2743 # find source path
2744 if test -f configure; then
2745     source_path=.
2746 else
2747     source_path=$(cd $(dirname "$0"); pwd)
2748     echo "$source_path" | grep -q '[[:blank:]]' &&
2749         die "Out of tree builds are impossible with whitespace in source path."
2750     test -e "$source_path/config.h" &&
2751         die "Out of tree builds are impossible with config.h in source dir."
2752 fi
2753
2754 for v in "$@"; do
2755     r=${v#*=}
2756     l=${v%"$r"}
2757     r=$(sh_quote "$r")
2758     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2759 done
2760
2761 find_things(){
2762     thing=$1
2763     pattern=$2
2764     file=$source_path/$3
2765     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2766 }
2767
2768 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2769 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2770 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2771 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2772 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2773 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2774 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2775 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2776 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2777 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2778 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2779
2780 ALL_COMPONENTS="
2781     $BSF_LIST
2782     $DECODER_LIST
2783     $DEMUXER_LIST
2784     $ENCODER_LIST
2785     $FILTER_LIST
2786     $HWACCEL_LIST
2787     $INDEV_LIST
2788     $MUXER_LIST
2789     $OUTDEV_LIST
2790     $PARSER_LIST
2791     $PROTOCOL_LIST
2792 "
2793
2794 for n in $COMPONENT_LIST; do
2795     v=$(toupper ${n%s})_LIST
2796     eval enable \$$v
2797     eval ${n}_if_any="\$$v"
2798 done
2799
2800 enable $ARCH_EXT_LIST
2801
2802 die_unknown(){
2803     echo "Unknown option \"$1\"."
2804     echo "See $0 --help for available options."
2805     exit 1
2806 }
2807
2808 print_3_columns() {
2809     cat | tr ' ' '\n' | sort | pr -r -3 -t
2810 }
2811
2812 show_list() {
2813     suffix=_$1
2814     shift
2815     echo $* | sed s/$suffix//g | print_3_columns
2816     exit 0
2817 }
2818
2819 rand_list(){
2820     IFS=', '
2821     set -- $*
2822     unset IFS
2823     for thing; do
2824         comp=${thing%:*}
2825         prob=${thing#$comp}
2826         prob=${prob#:}
2827         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2828         echo "prob ${prob:-0.5}"
2829         printf '%s\n' $comp
2830     done
2831 }
2832
2833 do_random(){
2834     action=$1
2835     shift
2836     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2837     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2838 }
2839
2840 for opt do
2841     optval="${opt#*=}"
2842     case "$opt" in
2843         --extra-ldflags=*)
2844             add_ldflags $optval
2845         ;;
2846         --extra-ldexeflags=*)
2847             add_ldexeflags $optval
2848         ;;
2849         --extra-libs=*)
2850             add_extralibs $optval
2851         ;;
2852         --disable-devices)
2853             disable $INDEV_LIST $OUTDEV_LIST
2854         ;;
2855         --enable-debug=*)
2856             debuglevel="$optval"
2857         ;;
2858         --disable-programs)
2859             disable $PROGRAM_LIST
2860         ;;
2861         --disable-everything)
2862             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2863         ;;
2864         --disable-all)
2865             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2866             disable $LIBRARY_LIST $PROGRAM_LIST doc
2867         ;;
2868         --enable-random|--disable-random)
2869             action=${opt%%-random}
2870             do_random ${action#--} $COMPONENT_LIST
2871         ;;
2872         --enable-random=*|--disable-random=*)
2873             action=${opt%%-random=*}
2874             do_random ${action#--} $optval
2875         ;;
2876         --enable-*=*|--disable-*=*)
2877             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2878             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2879             eval list=\$$(toupper $thing)_LIST
2880             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2881             list=$(filter "$name" $list)
2882             [ "$list" = "" ] && warn "Option $opt did not match anything"
2883             $action $list
2884         ;;
2885         --enable-?*|--disable-?*)
2886             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2887             if is_in $option $COMPONENT_LIST; then
2888                 test $action = disable && action=unset
2889                 eval $action \$$(toupper ${option%s})_LIST
2890             elif is_in $option $CMDLINE_SELECT; then
2891                 $action $option
2892             else
2893                 die_unknown $opt
2894             fi
2895         ;;
2896         --list-*)
2897             NAME="${opt#--list-}"
2898             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2899             NAME=${NAME%s}
2900             eval show_list $NAME \$$(toupper $NAME)_LIST
2901         ;;
2902         --help|-h) show_help
2903         ;;
2904         --fatal-warnings) enable fatal_warnings
2905         ;;
2906         *)
2907             optname="${opt%%=*}"
2908             optname="${optname#--}"
2909             optname=$(echo "$optname" | sed 's/-/_/g')
2910             if is_in $optname $CMDLINE_SET; then
2911                 eval $optname='$optval'
2912             elif is_in $optname $CMDLINE_APPEND; then
2913                 append $optname "$optval"
2914             else
2915                 die_unknown $opt
2916             fi
2917         ;;
2918     esac
2919 done
2920
2921 disabled logging && logfile=/dev/null
2922
2923 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2924 set >> $logfile
2925
2926 test -n "$cross_prefix" && enable cross_compile
2927
2928 if enabled cross_compile; then
2929     test -n "$arch" && test -n "$target_os" ||
2930         die "Must specify target arch and OS when cross-compiling"
2931 fi
2932
2933 ar_default="${cross_prefix}${ar_default}"
2934 cc_default="${cross_prefix}${cc_default}"
2935 cxx_default="${cross_prefix}${cxx_default}"
2936 nm_default="${cross_prefix}${nm_default}"
2937 pkg_config_default="${cross_prefix}${pkg_config_default}"
2938 ranlib_default="${cross_prefix}${ranlib_default}"
2939 strip_default="${cross_prefix}${strip_default}"
2940 windres_default="${cross_prefix}${windres_default}"
2941
2942 sysinclude_default="${sysroot}/usr/include"
2943
2944 test -n "$valgrind" && toolchain="valgrind-memcheck"
2945
2946 case "$toolchain" in
2947     clang-asan)
2948         cc_default="clang"
2949         add_cflags  -fsanitize=address
2950         add_ldflags -fsanitize=address
2951     ;;
2952     clang-tsan)
2953         cc_default="clang"
2954         add_cflags  -fsanitize=thread -pie
2955         add_ldflags -fsanitize=thread -pie
2956     ;;
2957     clang-usan)
2958         cc_default="clang"
2959         add_cflags  -fsanitize=undefined
2960         add_ldflags -fsanitize=undefined
2961     ;;
2962     gcc-asan)
2963         cc_default="gcc"
2964         add_cflags  -fsanitize=address
2965         add_ldflags -fsanitize=address
2966     ;;
2967     gcc-tsan)
2968         cc_default="gcc"
2969         add_cflags  -fsanitize=thread -pie -fPIC
2970         add_ldflags -fsanitize=thread -pie -fPIC
2971     ;;
2972     gcc-usan)
2973         cc_default="gcc"
2974         add_cflags  -fsanitize=undefined
2975         add_ldflags -fsanitize=undefined
2976     ;;
2977     valgrind-massif)
2978         target_exec_default=${valgrind:-"valgrind"}
2979         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"
2980     ;;
2981     valgrind-memcheck)
2982         target_exec_default=${valgrind:-"valgrind"}
2983         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2984     ;;
2985     msvc)
2986         # Check whether the current MSVC version needs the C99 converter.
2987         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2988         # support enough of C99 to build ffmpeg. Default to the new
2989         # behaviour if the regexp was unable to match anything, since this
2990         # successfully parses the version number of existing supported
2991         # versions that require the converter (MSVC 2010 and 2012).
2992         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2993         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2994             cc_default="cl"
2995         else
2996             cc_default="c99wrap cl"
2997         fi
2998         ld_default="link"
2999         nm_default="dumpbin -symbols"
3000         ar_default="lib"
3001         target_os_default="win32"
3002         # Use a relative path for TMPDIR. This makes sure all the
3003         # ffconf temp files are written with a relative path, avoiding
3004         # issues with msys/win32 path conversion for MSVC parameters
3005         # such as -Fo<file> or -out:<file>.
3006         TMPDIR=.
3007     ;;
3008     icl)
3009         cc_default="icl"
3010         ld_default="xilink"
3011         nm_default="dumpbin -symbols"
3012         ar_default="xilib"
3013         target_os_default="win32"
3014         TMPDIR=.
3015     ;;
3016     gcov)
3017         add_cflags  -fprofile-arcs -ftest-coverage
3018         add_ldflags -fprofile-arcs -ftest-coverage
3019     ;;
3020     hardened)
3021         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
3022         add_ldflags -Wl,-z,relro -Wl,-z,now
3023     ;;
3024     ?*)
3025         die "Unknown toolchain $toolchain"
3026     ;;
3027 esac
3028
3029 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3030     target_exec target_os yasmexe
3031 enabled cross_compile || host_cc_default=$cc
3032 set_default host_cc
3033
3034 if ! $pkg_config --version >/dev/null 2>&1; then
3035     warn "$pkg_config not found, library detection may fail."
3036     pkg_config=false
3037 fi
3038
3039 if test $doxygen != $doxygen_default && \
3040   ! $doxygen --version >/dev/null 2>&1; then
3041     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3042 fi
3043
3044 exesuf() {
3045     case $1 in
3046         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3047     esac
3048 }
3049
3050 EXESUF=$(exesuf $target_os)
3051 HOSTEXESUF=$(exesuf $host_os)
3052
3053 # set temporary file name
3054 : ${TMPDIR:=$TEMPDIR}
3055 : ${TMPDIR:=$TMP}
3056 : ${TMPDIR:=/tmp}
3057
3058 if [ -n "$tempprefix" ] ; then
3059     mktemp(){
3060         echo $tempprefix.${HOSTNAME}.${UID}
3061     }
3062 elif ! check_cmd mktemp -u XXXXXX; then
3063     # simple replacement for missing mktemp
3064     # NOT SAFE FOR GENERAL USE
3065     mktemp(){
3066         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3067     }
3068 fi
3069
3070 tmpfile(){
3071     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3072         (set -C; exec > $tmp) 2>/dev/null ||
3073         die "Unable to create temporary file in $TMPDIR."
3074     append TMPFILES $tmp
3075     eval $1=$tmp
3076 }
3077
3078 trap 'rm -f -- $TMPFILES' EXIT
3079
3080 tmpfile TMPASM .asm
3081 tmpfile TMPC   .c
3082 tmpfile TMPCPP .cpp
3083 tmpfile TMPE   $EXESUF
3084 tmpfile TMPH   .h
3085 tmpfile TMPM   .m
3086 tmpfile TMPO   .o
3087 tmpfile TMPS   .S
3088 tmpfile TMPSH  .sh
3089 tmpfile TMPV   .ver
3090
3091 unset -f mktemp
3092
3093 chmod +x $TMPE
3094
3095 # make sure we can execute files in $TMPDIR
3096 cat > $TMPSH 2>> $logfile <<EOF
3097 #! /bin/sh
3098 EOF
3099 chmod +x $TMPSH >> $logfile 2>&1
3100 if ! $TMPSH >> $logfile 2>&1; then
3101     cat <<EOF
3102 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3103 variable to another directory and make sure that it is not mounted noexec.
3104 EOF
3105     die "Sanity test failed."
3106 fi
3107
3108 ccc_flags(){
3109     for flag; do
3110         case $flag in
3111             -std=c99)           echo -c99                       ;;
3112             -mcpu=*)            echo -arch ${flag#*=}           ;;
3113             -mieee)             echo -ieee                      ;;
3114             -O*|-fast)          echo $flag                      ;;
3115             -fno-math-errno)    echo -assume nomath_errno       ;;
3116             -g)                 echo -g3                        ;;
3117             -Wall)              echo -msg_enable level2         ;;
3118             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3119             -Wl,*)              echo $flag                      ;;
3120             -f*|-W*)                                            ;;
3121             *)                  echo $flag                      ;;
3122         esac
3123    done
3124 }
3125
3126 cparser_flags(){
3127     for flag; do
3128         case $flag in
3129             -Wno-switch)             echo -Wno-switch-enum ;;
3130             -Wno-format-zero-length) ;;
3131             -Wdisabled-optimization) ;;
3132             -Wno-pointer-sign)       echo -Wno-other ;;
3133             *)                       echo $flag ;;
3134         esac
3135     done
3136 }
3137
3138 msvc_common_flags(){
3139     for flag; do
3140         case $flag in
3141             # In addition to specifying certain flags under the compiler
3142             # specific filters, they must be specified here as well or else the
3143             # generic catch all at the bottom will print the original flag.
3144             -Wall)                ;;
3145             -std=c99)             ;;
3146             # Common flags
3147             -fomit-frame-pointer) ;;
3148             -g)                   echo -Z7 ;;
3149             -fno-math-errno)      ;;
3150             -fno-common)          ;;
3151             -fno-signed-zeros)    ;;
3152             -fPIC)                ;;
3153             -mthumb)              ;;
3154             -march=*)             ;;
3155             -lz)                  echo zlib.lib ;;
3156             -lavifil32)           echo vfw32.lib ;;
3157             -lavicap32)           echo vfw32.lib user32.lib ;;
3158             -l*)                  echo ${flag#-l}.lib ;;
3159             *)                    echo $flag ;;
3160         esac
3161     done
3162 }
3163
3164 msvc_flags(){
3165     msvc_common_flags "$@"
3166     for flag; do
3167         case $flag in
3168             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3169                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3170                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3171                                        -wd4554 \
3172                                        -wd4273 ;;
3173         esac
3174     done
3175 }
3176
3177 icl_flags(){
3178     msvc_common_flags "$@"
3179     for flag; do
3180         case $flag in
3181             # Despite what Intel's documentation says -Wall, which is supported
3182             # on Windows, does enable remarks so disable them here.
3183             -Wall)                echo $flag -Qdiag-disable:remark ;;
3184             -std=c99)             echo -Qstd=c99 ;;
3185             -flto)                echo -ipo ;;
3186         esac
3187     done
3188 }
3189
3190 icc_flags(){
3191     for flag; do
3192         case $flag in
3193             -flto)                echo -ipo ;;
3194             *)                    echo $flag ;;
3195         esac
3196     done
3197 }
3198
3199 pgi_flags(){
3200     for flag; do
3201         case $flag in
3202             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3203             -fomit-frame-pointer) echo -Mnoframe ;;
3204             -g)                   echo -gopt ;;
3205             *)                    echo $flag ;;
3206         esac
3207     done
3208 }
3209
3210 suncc_flags(){
3211     for flag; do
3212         case $flag in
3213             -march=*|-mcpu=*)
3214                 case "${flag#*=}" in
3215                     native)                   echo -xtarget=native       ;;
3216                     v9|niagara)               echo -xarch=sparc          ;;
3217                     ultrasparc)               echo -xarch=sparcvis       ;;
3218                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3219                     i586|pentium)             echo -xchip=pentium        ;;
3220                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3221                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3222                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3223                     pentium4*)          echo -xtarget=pentium4           ;;
3224                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3225                     *-sse3)             echo -xarch=sse3                 ;;
3226                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3227                     bonnell)                   echo -xarch=ssse3         ;;
3228                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3229                     westmere)                  echo -xtarget=westmere    ;;
3230                     silvermont)                echo -xarch=sse4_2        ;;
3231                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3232                     core-avx*|ivybridge|haswell|broadwell)
3233                                                echo -xarch=avx           ;;
3234                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3235                     btver1)                    echo -xarch=amdsse4a      ;;
3236                     btver2|bdver*)             echo -xarch=avx           ;;
3237                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3238                     k8|opteron|athlon64|athlon-fx)
3239                                                echo -xarch=sse2a         ;;
3240                     athlon*)                   echo -xarch=pentium_proa  ;;
3241                 esac
3242                 ;;
3243             -std=c99)             echo -xc99              ;;
3244             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3245             -fPIC)                echo -KPIC -xcode=pic32 ;;
3246             -W*,*)                echo $flag              ;;
3247             -f*-*|-W*|-mimpure-text)                      ;;
3248             -shared)              echo -G                 ;;
3249             *)                    echo $flag              ;;
3250         esac
3251     done
3252 }
3253
3254 tms470_flags(){
3255     for flag; do
3256         case $flag in
3257             -march=*|-mcpu=*)
3258                 case "${flag#*=}" in
3259                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3260                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3261                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3262                     armv6*|arm11*)          echo -mv=6   ;;
3263                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3264                                             echo -mv=5e  ;;
3265                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3266                 esac
3267                 ;;
3268             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3269             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3270             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3271             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3272             -msoft-float)   echo --float_support=vfplib       ;;
3273             -O[0-3]|-mf=*)  echo $flag                        ;;
3274             -g)             echo -g -mn                       ;;
3275             -pds=*)         echo $flag                        ;;
3276             -D*|-I*)        echo $flag                        ;;
3277             --gcc|--abi=*)  echo $flag                        ;;
3278             -me)            echo $flag                        ;;
3279         esac
3280     done
3281 }
3282
3283 probe_cc(){
3284     pfx=$1
3285     _cc=$2
3286
3287     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3288     unset _ld_o _ldflags _ld_lib _ld_path
3289     unset _depflags _DEPCMD _DEPFLAGS
3290     _flags_filter=echo
3291
3292     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3293         true # no-op to avoid reading stdin in following checks
3294     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3295         _type=llvm_gcc
3296         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3297         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3298         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3299         _cflags_speed='-O3'
3300         _cflags_size='-Os'
3301     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3302         _type=gcc
3303         gcc_version=$($_cc --version | head -n1)
3304         gcc_basever=$($_cc -dumpversion)
3305         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3306         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3307         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3308         if ! $_cc -dumpversion | grep -q '^2\.'; then
3309             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3310         fi
3311         _cflags_speed='-O3'
3312         _cflags_size='-Os'
3313     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3314         _type=icc
3315         _ident=$($_cc --version | head -n1)
3316         _depflags='-MMD'
3317         _cflags_speed='-O3'
3318         _cflags_size='-Os'
3319         _cflags_noopt='-O1'
3320         _flags_filter=icc_flags
3321     elif $_cc -v 2>&1 | grep -q xlc; then
3322         _type=xlc
3323         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3324         _cflags_speed='-O5'
3325         _cflags_size='-O5 -qcompact'
3326     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3327         _type=ccc
3328         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3329         _DEPFLAGS='-M'
3330         _cflags_speed='-fast'
3331         _cflags_size='-O1'
3332         _flags_filter=ccc_flags
3333     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3334         test -d "$sysroot" || die "No valid sysroot specified."
3335         _type=armcc
3336         _ident=$($_cc --vsn | head -n1 | sed 's/.*: //')
3337         armcc_conf="$PWD/armcc.conf"
3338         $_cc --arm_linux_configure                 \
3339              --arm_linux_config_file="$armcc_conf" \
3340              --configure_sysroot="$sysroot"        \
3341              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3342              die "Error creating armcc configuration file."
3343         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3344         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3345         as_default="${cross_prefix}gcc"
3346         _depflags='-MMD'
3347         _cflags_speed='-O3'
3348         _cflags_size='-Os'
3349     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3350         _type=tms470
3351         _ident=$($_cc -version | head -n1 | tr -s ' ')
3352         _flags='--gcc --abi=eabi -me'
3353         _cc_e='-ppl -fe=$@'
3354         _cc_o='-fe=$@'
3355         _depflags='-ppa -ppd=$(@:.o=.d)'
3356         _cflags_speed='-O3 -mf=5'
3357         _cflags_size='-O3 -mf=2'
3358         _flags_filter=tms470_flags
3359     elif $_cc -v 2>&1 | grep -q clang; then
3360         _type=clang
3361         _ident=$($_cc --version | head -n1)
3362         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3363         _cflags_speed='-O3'
3364         _cflags_size='-Os'
3365     elif $_cc -V 2>&1 | grep -q Sun; then
3366         _type=suncc
3367         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3368         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3369         _DEPFLAGS='-xM1 -xc99'
3370         _ldflags='-std=c99'
3371         _cflags_speed='-O5'
3372         _cflags_size='-O5 -xspace'
3373         _flags_filter=suncc_flags
3374     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3375         _type=pathscale
3376         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3377         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3378         _cflags_speed='-O2'
3379         _cflags_size='-Os'
3380         _flags_filter='filter_out -Wdisabled-optimization'
3381     elif $_cc -v 2>&1 | grep -q Open64; then
3382         _type=open64
3383         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3384         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3385         _cflags_speed='-O2'
3386         _cflags_size='-Os'
3387         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3388     elif $_cc -V 2>&1 | grep -q Portland; then
3389         _type=pgi
3390         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3391         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3392         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3393         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3394         _cflags_noopt="-O"
3395         _flags_filter=pgi_flags
3396     elif $_cc 2>&1 | grep -q Microsoft; then
3397         _type=msvc
3398         _ident=$($cc 2>&1 | head -n1)
3399         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3400         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3401         _cflags_speed="-O2"
3402         _cflags_size="-O1"
3403         if $_cc 2>&1 | grep -q Linker; then
3404             _ld_o='-out:$@'
3405         else
3406             _ld_o='-Fe$@'
3407         fi
3408         _cc_o='-Fo$@'
3409         _cc_e='-P -Fi$@'
3410         _flags_filter=msvc_flags
3411         _ld_lib='lib%.a'
3412         _ld_path='-libpath:'
3413         _flags='-nologo'
3414         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3415         if [ $pfx = hostcc ]; then
3416             append _cflags -Dsnprintf=_snprintf
3417         fi
3418         disable stripping
3419     elif $_cc 2>&1 | grep -q Intel; then
3420         _type=icl
3421         _ident=$($cc 2>&1 | head -n1)
3422         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3423         # Not only is O3 broken on 13.x+ but it is slower on all previous
3424         # versions (tested) as well.
3425         _cflags_speed="-O2"
3426         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3427         if $_cc 2>&1 | grep -q Linker; then
3428             _ld_o='-out:$@'
3429         else
3430             _ld_o='-Fe$@'
3431         fi
3432         _cc_o='-Fo$@'
3433         _cc_e='-P'
3434         _flags_filter=icl_flags
3435         _ld_lib='lib%.a'
3436         _ld_path='-libpath:'
3437         # -Qdiag-error to make icl error when seeing certain unknown arguments
3438         _flags='-nologo -Qdiag-error:4044,10157'
3439         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3440         # with MSVC which enables it by default.
3441         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3442         if [ $pfx = hostcc ]; then
3443             append _cflags -Dsnprintf=_snprintf
3444         fi
3445     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3446         _type=cparser
3447         _ident=$($_cc --version | head -n1)
3448         _depflags='-MMD'
3449         _cflags_speed='-O4'
3450         _cflags_size='-O2'
3451         _flags_filter=cparser_flags
3452     fi
3453
3454     eval ${pfx}_type=\$_type
3455     eval ${pfx}_ident=\$_ident
3456 }
3457
3458 set_ccvars(){
3459     eval ${1}_C=\${_cc_c-\${${1}_C}}
3460     eval ${1}_E=\${_cc_e-\${${1}_E}}
3461     eval ${1}_O=\${_cc_o-\${${1}_O}}
3462
3463     if [ -n "$_depflags" ]; then
3464         eval ${1}_DEPFLAGS=\$_depflags
3465     else
3466         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3467         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3468         eval DEP${1}FLAGS=\$_flags
3469     fi
3470 }
3471
3472 probe_cc cc "$cc"
3473 cflags_filter=$_flags_filter
3474 cflags_speed=$_cflags_speed
3475 cflags_size=$_cflags_size
3476 cflags_noopt=$_cflags_noopt
3477 add_cflags $_flags $_cflags
3478 cc_ldflags=$_ldflags
3479 set_ccvars CC
3480
3481 probe_cc hostcc "$host_cc"
3482 host_cflags_filter=$_flags_filter
3483 add_host_cflags  $_flags $_cflags
3484 set_ccvars HOSTCC
3485
3486 test -n "$cc_type" && enable $cc_type ||
3487     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3488
3489 : ${as_default:=$cc}
3490 : ${dep_cc_default:=$cc}
3491 : ${ld_default:=$cc}
3492 : ${host_ld_default:=$host_cc}
3493 set_default ar as dep_cc ld host_ld windres
3494
3495 probe_cc as "$as"
3496 asflags_filter=$_flags_filter
3497 add_asflags $_flags $_cflags
3498 set_ccvars AS
3499
3500 probe_cc ld "$ld"
3501 ldflags_filter=$_flags_filter
3502 add_ldflags $_flags $_ldflags
3503 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3504 LD_O=${_ld_o-$LD_O}
3505 LD_LIB=${_ld_lib-$LD_LIB}
3506 LD_PATH=${_ld_path-$LD_PATH}
3507
3508 probe_cc hostld "$host_ld"
3509 host_ldflags_filter=$_flags_filter
3510 add_host_ldflags $_flags $_ldflags
3511 HOSTLD_O=${_ld_o-$HOSTLD_O}
3512
3513 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3514     probe_cc depcc "$dep_cc"
3515     CCDEP=${_DEPCMD:-$DEPCMD}
3516     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3517     DEPCCFLAGS=$_flags
3518 fi
3519
3520 if $ar 2>&1 | grep -q Microsoft; then
3521     arflags="-nologo"
3522     ar_o='-out:$@'
3523 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3524     arflags="rq"
3525     ar_o='$@'
3526 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3527     arflags='-Xany -r -c'
3528     ar_o='$@'
3529 else
3530     arflags="rc"
3531     ar_o='$@'
3532 fi
3533
3534 add_cflags $extra_cflags
3535 add_cxxflags $extra_cxxflags
3536 add_asflags $extra_cflags
3537
3538 if test -n "$sysroot"; then
3539     case "$cc_type" in
3540         gcc|llvm_gcc|clang)
3541             add_cppflags --sysroot="$sysroot"
3542             add_ldflags --sysroot="$sysroot"
3543 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3544             add_cppflags -isysroot "$sysroot"
3545             add_ldflags -isysroot "$sysroot"
3546         ;;
3547         tms470)
3548             add_cppflags -I"$sysinclude"
3549             add_ldflags  --sysroot="$sysroot"
3550         ;;
3551     esac
3552 fi
3553
3554 if test "$cpu" = host; then
3555     enabled cross_compile &&
3556         die "--cpu=host makes no sense when cross-compiling."
3557
3558     case "$cc_type" in
3559         gcc|llvm_gcc)
3560             check_native(){
3561                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3562                 sed -n "/cc1.*$1=/{
3563                             s/.*$1=\\([^ ]*\\).*/\\1/
3564                             p
3565                             q
3566                         }" $TMPE
3567             }
3568             cpu=$(check_native -march || check_native -mcpu)
3569         ;;
3570     esac
3571
3572     test "${cpu:-host}" = host &&
3573         die "--cpu=host not supported with compiler $cc"
3574 fi
3575
3576 # Deal with common $arch aliases
3577 case "$arch" in
3578     aarch64|arm64)
3579         arch="aarch64"
3580     ;;
3581     arm*|iPad*|iPhone*)
3582         arch="arm"
3583     ;;
3584     mips*|IP*)
3585         arch="mips"
3586     ;;
3587     parisc*|hppa*)
3588         arch="parisc"
3589     ;;
3590     "Power Macintosh"|ppc*|powerpc*)
3591         arch="ppc"
3592     ;;
3593     s390|s390x)
3594         arch="s390"
3595     ;;
3596     sh4|sh)
3597         arch="sh4"
3598     ;;
3599     sun4u|sparc*)
3600         arch="sparc"
3601     ;;
3602     tilegx|tile-gx)
3603         arch="tilegx"
3604     ;;
3605     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3606         arch="x86"
3607     ;;
3608 esac
3609
3610 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3611 enable $arch
3612
3613 # Add processor-specific flags
3614 if enabled aarch64; then
3615
3616     case $cpu in
3617         armv*)
3618             cpuflags="-march=$cpu"
3619         ;;
3620         *)
3621             cpuflags="-mcpu=$cpu"
3622         ;;
3623     esac
3624
3625 elif enabled alpha; then
3626
3627     cpuflags="-mcpu=$cpu"
3628
3629 elif enabled arm; then
3630
3631     check_arm_arch() {
3632         check_cpp_condition stddef.h \
3633             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3634             $cpuflags
3635     }
3636
3637     probe_arm_arch() {
3638         if   check_arm_arch 4;        then echo armv4;
3639         elif check_arm_arch 4T;       then echo armv4t;
3640         elif check_arm_arch 5;        then echo armv5;
3641         elif check_arm_arch 5E;       then echo armv5e;
3642         elif check_arm_arch 5T;       then echo armv5t;
3643         elif check_arm_arch 5TE;      then echo armv5te;
3644         elif check_arm_arch 5TEJ;     then echo armv5te;
3645         elif check_arm_arch 6;        then echo armv6;
3646         elif check_arm_arch 6J;       then echo armv6j;
3647         elif check_arm_arch 6K;       then echo armv6k;
3648         elif check_arm_arch 6Z;       then echo armv6z;
3649         elif check_arm_arch 6ZK;      then echo armv6zk;
3650         elif check_arm_arch 6T2;      then echo armv6t2;
3651         elif check_arm_arch 7;        then echo armv7;
3652         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3653         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3654         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3655         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3656         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3657         fi
3658     }
3659
3660     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3661
3662     case $cpu in
3663         armv*)
3664             cpuflags="-march=$cpu"
3665             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3666         ;;
3667         *)
3668             cpuflags="-mcpu=$cpu"
3669             case $cpu in
3670                 cortex-a*)                               subarch=armv7a  ;;
3671                 cortex-r*)                               subarch=armv7r  ;;
3672                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3673                 arm11*)                                  subarch=armv6   ;;
3674                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3675                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3676                 *)                             subarch=$(probe_arm_arch) ;;
3677             esac
3678         ;;
3679     esac
3680
3681     case "$subarch" in
3682         armv5t*)    enable fast_clz                ;;
3683         armv[6-8]*)
3684             enable fast_clz
3685             disabled fast_unaligned || enable fast_unaligned
3686             ;;
3687     esac
3688
3689 elif enabled avr32; then
3690
3691     case $cpu in
3692         ap7[02]0[0-2])
3693             subarch="avr32_ap"
3694             cpuflags="-mpart=$cpu"
3695         ;;
3696         ap)
3697             subarch="avr32_ap"
3698             cpuflags="-march=$cpu"
3699         ;;
3700         uc3[ab]*)
3701             subarch="avr32_uc"
3702             cpuflags="-mcpu=$cpu"
3703         ;;
3704         uc)
3705             subarch="avr32_uc"
3706             cpuflags="-march=$cpu"
3707         ;;
3708     esac
3709
3710 elif enabled bfin; then
3711
3712     cpuflags="-mcpu=$cpu"
3713
3714 elif enabled mips; then
3715
3716     cpuflags="-march=$cpu"
3717
3718     case $cpu in
3719         24kc)
3720             disable mipsfpu
3721             disable mipsdspr1
3722             disable mipsdspr2
3723         ;;
3724         24kf*)
3725             disable mipsdspr1
3726             disable mipsdspr2
3727         ;;
3728         24kec|34kc|1004kc)
3729             disable mipsfpu
3730             disable mipsdspr2
3731         ;;
3732         24kef*|34kf*|1004kf*)
3733             disable mipsdspr2
3734         ;;
3735         74kc)
3736             disable mipsfpu
3737         ;;
3738     esac
3739
3740 elif enabled ppc; then
3741
3742     disable ldbrx
3743     disable vsx
3744
3745     case $(tolower $cpu) in
3746         601|ppc601|powerpc601)
3747             cpuflags="-mcpu=601"
3748             disable altivec
3749         ;;
3750         603*|ppc603*|powerpc603*)
3751             cpuflags="-mcpu=603"
3752             disable altivec
3753         ;;
3754         604*|ppc604*|powerpc604*)
3755             cpuflags="-mcpu=604"
3756             disable altivec
3757         ;;
3758         g3|75*|ppc75*|powerpc75*)
3759             cpuflags="-mcpu=750"
3760             disable altivec
3761         ;;
3762         g4|745*|ppc745*|powerpc745*)
3763             cpuflags="-mcpu=7450"
3764         ;;
3765         74*|ppc74*|powerpc74*)
3766             cpuflags="-mcpu=7400"
3767         ;;
3768         g5|970|ppc970|powerpc970)
3769             cpuflags="-mcpu=970"
3770         ;;
3771         power[3-8]*)
3772             cpuflags="-mcpu=$cpu"
3773         ;;
3774         cell)
3775             cpuflags="-mcpu=cell"
3776             enable ldbrx
3777         ;;
3778         e500mc)
3779             cpuflags="-mcpu=e500mc"
3780             disable altivec
3781         ;;
3782         e500v2)
3783             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3784             disable altivec
3785             disable dcbzl
3786         ;;
3787         e500)
3788             cpuflags="-mcpu=8540 -mhard-float"
3789             disable altivec
3790             disable dcbzl
3791         ;;
3792     esac
3793
3794 elif enabled sparc; then
3795
3796     case $cpu in
3797         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3798             cpuflags="-mcpu=$cpu"
3799         ;;
3800         ultrasparc*|niagara[234])
3801             cpuflags="-mcpu=$cpu"
3802         ;;
3803     esac
3804
3805 elif enabled x86; then
3806
3807     case $cpu in
3808         i[345]86|pentium)
3809             cpuflags="-march=$cpu"
3810             disable mmx
3811         ;;
3812         # targets that do NOT support nopl and conditional mov (cmov)
3813         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3814             cpuflags="-march=$cpu"
3815             disable i686
3816         ;;
3817         # targets that do support nopl and conditional mov (cmov)
3818         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3819         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3820             cpuflags="-march=$cpu"
3821             enable i686
3822             enable fast_cmov
3823         ;;
3824         # targets that do support conditional mov but on which it's slow
3825         pentium4|pentium4m|prescott|nocona)
3826             cpuflags="-march=$cpu"
3827             enable i686
3828             disable fast_cmov
3829         ;;
3830     esac
3831
3832 fi
3833
3834 if [ "$cpu" != generic ]; then
3835     add_cflags  $cpuflags
3836     add_asflags $cpuflags
3837 fi
3838
3839 # compiler sanity check
3840 check_exec <<EOF
3841 int main(void){ return 0; }
3842 EOF
3843 if test "$?" != 0; then
3844     echo "$cc is unable to create an executable file."
3845     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3846         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3847         echo "Only do this if you know what cross compiling means."
3848     fi
3849     die "C compiler test failed."
3850 fi
3851
3852 add_cppflags -D_ISOC99_SOURCE
3853 add_cxxflags -D__STDC_CONSTANT_MACROS
3854 check_cflags -std=c99
3855 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3856 #include <stdlib.h>
3857 EOF
3858 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3859 #include <stdlib.h>
3860 EOF
3861
3862 add_host_cppflags -D_ISOC99_SOURCE
3863 check_host_cflags -std=c99
3864 check_host_cflags -Wall
3865 check_host_cflags -O3
3866
3867 check_64bit(){
3868     arch32=$1
3869     arch64=$2
3870     expr=$3
3871     check_code cc "" "int test[2*($expr) - 1]" &&
3872         subarch=$arch64 || subarch=$arch32
3873 }
3874
3875 case "$arch" in
3876     aarch64|alpha|ia64)
3877         spic=$shared
3878     ;;
3879     mips)
3880         check_64bit mips mips64 '_MIPS_SIM > 1'
3881         spic=$shared
3882     ;;
3883     parisc)
3884         check_64bit parisc parisc64 'sizeof(void *) > 4'
3885         spic=$shared
3886     ;;
3887     ppc)
3888         check_64bit ppc ppc64 'sizeof(void *) > 4'
3889         spic=$shared
3890     ;;
3891     s390)
3892         check_64bit s390 s390x 'sizeof(void *) > 4'
3893         spic=$shared
3894     ;;
3895     sparc)
3896         check_64bit sparc sparc64 'sizeof(void *) > 4'
3897         spic=$shared
3898     ;;
3899     x86)
3900         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3901         if test "$subarch" = "x86_64"; then
3902             spic=$shared
3903         fi
3904     ;;
3905     ppc)
3906         check_cc <<EOF && subarch="ppc64"
3907         int test[(int)sizeof(char*) - 7];
3908 EOF
3909     ;;
3910 esac
3911
3912 enable $subarch
3913 enabled spic && enable_weak pic
3914
3915 # OS specific
3916 case $target_os in
3917     aix)
3918         SHFLAGS=-shared
3919         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3920         enabled shared && add_ldflags -Wl,-brtl
3921         ;;
3922     android)
3923         disable symver
3924         SLIB_INSTALL_NAME='$(SLIBNAME)'
3925         SLIB_INSTALL_LINKS=
3926         # soname not set on purpose
3927         SHFLAGS=-shared
3928         ;;
3929     haiku)
3930         prefix_default="/boot/common"
3931         network_extralibs="-lnetwork"
3932         host_libs=
3933         ;;
3934     sunos)
3935         SHFLAGS='-shared -Wl,-h,$$(@F)'
3936         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3937         network_extralibs="-lsocket -lnsl"
3938         # When using suncc to build, the Solaris linker will mark
3939         # an executable with each instruction set encountered by
3940         # the Solaris assembler.  As our libraries contain their own
3941         # guards for processor-specific code, instead suppress
3942         # generation of the HWCAPS ELF section on Solaris x86 only.
3943         enabled_all suncc x86 &&
3944             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3945             add_ldflags -Wl,-M,mapfile
3946         nm_default='nm -P -g'
3947         ;;
3948     netbsd)
3949         disable symver
3950         oss_indev_extralibs="-lossaudio"
3951         oss_outdev_extralibs="-lossaudio"
3952         enabled gcc || check_ldflags -Wl,-zmuldefs
3953         ;;
3954     openbsd|bitrig)
3955         disable symver
3956         SHFLAGS='-shared'
3957         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3958         SLIB_INSTALL_LINKS=
3959         oss_indev_extralibs="-lossaudio"
3960         oss_outdev_extralibs="-lossaudio"
3961         ;;
3962     dragonfly)
3963         disable symver
3964         ;;
3965     freebsd)
3966         ;;
3967     bsd/os)
3968         add_extralibs -lpoll -lgnugetopt
3969         strip="strip -d"
3970         ;;
3971     darwin)
3972         test "${as#*gas-preprocessor.pl}" != "$as" || gas="${gas:=gas-preprocessor.pl} ${as:=$cc}"
3973         enabled ppc && add_asflags -force_cpusubtype_ALL
3974         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3975         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3976         strip="${strip} -x"
3977         add_ldflags -Wl,-dynamic,-search_paths_first
3978         SLIBSUF=".dylib"
3979         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3980         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3981         objformat="macho"
3982         enabled x86_64 && objformat="macho64"
3983         enabled_any pic shared ||
3984             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3985         ;;
3986     mingw32*)
3987         if test $target_os = "mingw32ce"; then
3988             disable network
3989         else
3990             target_os=mingw32
3991         fi
3992         LIBTARGET=i386
3993         if enabled x86_64; then
3994             LIBTARGET="i386:x86-64"
3995         elif enabled arm; then
3996             LIBTARGET=arm-wince
3997         fi
3998         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
3999         check_ldflags -Wl,--nxcompat
4000         check_ldflags -Wl,--dynamicbase
4001         shlibdir_default="$bindir_default"
4002         SLIBPREF=""
4003         SLIBSUF=".dll"
4004         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4005         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4006         dlltool="${cross_prefix}dlltool"
4007         if check_cmd lib.exe -list; then
4008             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4009             if enabled x86_64; then
4010                 LIBTARGET=x64
4011             fi
4012         elif check_cmd $dlltool --version; then
4013             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4014         fi
4015         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4016         SLIB_INSTALL_LINKS=
4017         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4018         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4019         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4020         objformat="win32"
4021         ranlib=:
4022         enable dos_paths
4023         ;;
4024     win32|win64)
4025         disable symver
4026         if enabled shared; then
4027             # Link to the import library instead of the normal static library
4028             # for shared libs.
4029             LD_LIB='%.lib'
4030             # Cannot build both shared and static libs with MSVC or icl.
4031             disable static
4032         fi
4033         shlibdir_default="$bindir_default"
4034         SLIBPREF=""
4035         SLIBSUF=".dll"
4036         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4037         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4038         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4039         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4040         SLIB_INSTALL_LINKS=
4041         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4042         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4043         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4044         objformat="win32"
4045         ranlib=:
4046         enable dos_paths
4047         ;;
4048     cygwin*)
4049         target_os=cygwin
4050         shlibdir_default="$bindir_default"
4051         SLIBPREF="cyg"
4052         SLIBSUF=".dll"
4053         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4054         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4055         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4056         SLIB_INSTALL_LINKS=
4057         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4058         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4059         objformat="win32"
4060         enable dos_paths
4061         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4062         ;;
4063     *-dos|freedos|opendos)
4064         network_extralibs="-lsocket"
4065         objformat="coff"
4066         enable dos_paths
4067         add_cppflags -U__STRICT_ANSI__
4068         ;;
4069     linux)
4070         enable dv1394
4071         ;;
4072     irix*)
4073         target_os=irix
4074         ranlib="echo ignoring ranlib"
4075         ;;
4076     os/2*)
4077         strip="lxlite -CS"
4078         ln_s="cp -f"
4079         objformat="aout"
4080         add_cppflags -D_GNU_SOURCE
4081         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4082         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4083         LIBSUF="_s.a"
4084         SLIBPREF=""
4085         SLIBSUF=".dll"
4086         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4087         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4088         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4089             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4090             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4091             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4092             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4093             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4094         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4095             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4096         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4097         enable dos_paths
4098         enable_weak os2threads
4099         ;;
4100     gnu/kfreebsd)
4101         add_cppflags -D_BSD_SOURCE
4102         ;;
4103     gnu)
4104         ;;
4105     qnx)
4106         add_cppflags -D_QNX_SOURCE
4107         network_extralibs="-lsocket"
4108         ;;
4109     symbian)
4110         SLIBSUF=".dll"
4111         enable dos_paths
4112         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4113         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4114         add_ldflags -Wl,--target1-abs,--no-undefined \
4115                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4116                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4117         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4118                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4119                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4120         ;;
4121     osf1)
4122         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4123         ;;
4124     minix)
4125         ;;
4126     plan9)
4127         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4128                      -D_REENTRANT_SOURCE        \
4129                      -D_RESEARCH_SOURCE         \
4130                      -DFD_SETSIZE=96            \
4131                      -DHAVE_SOCK_OPTS
4132         add_compat strtod.o strtod=avpriv_strtod
4133         network_extralibs='-lbsd'
4134         exeobjs=compat/plan9/main.o
4135         disable ffserver
4136         cp_f='cp'
4137         ;;
4138     none)
4139         ;;
4140     *)
4141         die "Unknown OS '$target_os'."
4142         ;;
4143 esac
4144
4145 # determine libc flavour
4146
4147 probe_libc(){
4148     pfx=$1
4149     pfx_no_=${pfx%_}
4150     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4151     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4152         eval ${pfx}libc_type=uclibc
4153         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4154     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4155         eval ${pfx}libc_type=glibc
4156         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4157     # MinGW headers can be installed on Cygwin, so check for newlib first.
4158     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4159         eval ${pfx}libc_type=newlib
4160         add_${pfx}cppflags -U__STRICT_ANSI__
4161     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4162     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4163         eval ${pfx}libc_type=mingw64
4164         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4165             add_compat msvcrt/snprintf.o
4166             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4167         fi
4168         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4169         eval test \$${pfx_no_}cc_type = "gcc" &&
4170             add_${pfx}cppflags -D__printf__=__gnu_printf__
4171     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4172          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4173         eval ${pfx}libc_type=mingw32
4174         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4175             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4176             die "ERROR: MinGW32 runtime version must be >= 3.15."
4177         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4178         eval test \$${pfx_no_}cc_type = "gcc" &&
4179             add_${pfx}cppflags -D__printf__=__gnu_printf__
4180     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4181         eval ${pfx}libc_type=msvcrt
4182         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4183         # 0x601 by default unless something else is set by the user.
4184         # This can easily lead to us detecting functions only present
4185         # in such new versions and producing binaries requiring windows 7.0.
4186         # Therefore explicitly set the default to XP unless the user has
4187         # set something else on the command line.
4188         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4189             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4190     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4191         eval ${pfx}libc_type=klibc
4192     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4193         eval ${pfx}libc_type=bionic
4194     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4195         eval ${pfx}libc_type=solaris
4196         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4197     fi
4198 }
4199
4200 probe_libc
4201 test -n "$libc_type" && enable libc_$libc_type
4202 probe_libc host_
4203 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4204
4205 case $libc_type in
4206     bionic)
4207         add_compat strtod.o strtod=avpriv_strtod
4208         ;;
4209     msvcrt)
4210         add_compat strtod.o strtod=avpriv_strtod
4211         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4212                                      _snprintf=avpriv_snprintf  \
4213                                      vsnprintf=avpriv_vsnprintf
4214         ;;
4215 esac
4216
4217 # hacks for compiler/libc/os combinations
4218
4219 if enabled_all tms470 libc_glibc; then
4220     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4221     add_cppflags -D__USER_LABEL_PREFIX__=
4222     add_cppflags -D__builtin_memset=memset
4223     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4224     add_cflags   -pds=48    # incompatible redefinition of macro
4225 fi
4226
4227 if enabled_all ccc libc_glibc; then
4228     add_ldflags -Wl,-z,now  # calls to libots crash without this
4229 fi
4230
4231 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4232     add_cppflags '-I\$(SRC_PATH)/compat/float'
4233
4234 esc(){
4235     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4236 }
4237
4238 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4239
4240 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4241
4242 set_default $PATHS_LIST
4243 set_default nm
4244
4245 # we need to build at least one lib type
4246 if ! enabled_any static shared; then
4247     cat <<EOF
4248 At least one library type must be built.
4249 Specify --enable-static to build the static libraries or --enable-shared to
4250 build the shared libraries as well. To only build the shared libraries specify
4251 --disable-static in addition to --enable-shared.
4252 EOF
4253     exit 1;
4254 fi
4255
4256 die_license_disabled() {
4257     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4258 }
4259
4260 die_license_disabled_gpl() {
4261     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4262 }
4263
4264 die_license_disabled gpl frei0r
4265 die_license_disabled gpl libcdio
4266 die_license_disabled gpl libsmbclient
4267 die_license_disabled gpl libutvideo
4268 die_license_disabled gpl libvidstab
4269 die_license_disabled gpl libx264
4270 die_license_disabled gpl libx265
4271 die_license_disabled gpl libxavs
4272 die_license_disabled gpl libxvid
4273 die_license_disabled gpl libzvbi
4274 die_license_disabled gpl x11grab
4275
4276 die_license_disabled nonfree libaacplus
4277 die_license_disabled nonfree libfaac
4278 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4279 enabled gpl && die_license_disabled_gpl nonfree openssl
4280
4281 die_license_disabled version3 libopencore_amrnb
4282 die_license_disabled version3 libopencore_amrwb
4283 die_license_disabled version3 libsmbclient
4284 die_license_disabled version3 libvo_aacenc
4285 die_license_disabled version3 libvo_amrwbenc
4286
4287 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4288
4289 disabled optimizations || check_cflags -fomit-frame-pointer
4290
4291 enable_weak_pic() {
4292     disabled pic && return
4293     enable pic
4294     add_cppflags -DPIC
4295     case "$target_os" in
4296     mingw*|cygwin*)
4297         ;;
4298     *)
4299         add_cflags -fPIC
4300         ;;
4301     esac
4302     add_asflags  -fPIC
4303 }
4304
4305 enabled pic && enable_weak_pic
4306
4307 check_cc <<EOF || die "Symbol mangling check failed."
4308 int ff_extern;
4309 EOF
4310 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4311 extern_prefix=${sym%%ff_extern*}
4312
4313 check_cc <<EOF && enable_weak inline_asm
4314 void foo(void) { __asm__ volatile ("" ::); }
4315 EOF
4316
4317 _restrict=
4318 for restrict_keyword in restrict __restrict__ __restrict; do
4319     check_cc <<EOF && _restrict=$restrict_keyword && break
4320 void foo(char * $restrict_keyword p);
4321 EOF
4322 done
4323
4324 check_cc <<EOF && enable pragma_deprecated
4325 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4326 EOF
4327
4328 check_cc <<EOF && enable attribute_packed
4329 struct { int x; } __attribute__((packed)) x;
4330 EOF
4331
4332 check_cc <<EOF && enable attribute_may_alias
4333 union { int x; } __attribute__((may_alias)) x;
4334 EOF
4335
4336 check_cc <<EOF || die "endian test failed"
4337 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4338 EOF
4339 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4340
4341 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4342     if ! enabled bigendian ;then
4343         enable vsx
4344     fi
4345 fi
4346
4347
4348 if enabled asm; then
4349     enabled     arm         && nogas=die
4350     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4351     as=${gas:=$as}
4352     check_as <<EOF && enable gnu_as || \
4353         $nogas "GNU assembler not found, install gas-preprocessor"
4354 .macro m n
4355 \n: .int 0
4356 .endm
4357 m x
4358 EOF
4359
4360     check_as <<EOF || $nogas "GNU assembler not found, install gas-preprocessor"
4361 .altmacro
4362 EOF
4363
4364     check_as <<EOF && enable as_func
4365 .func test
4366 .endfunc
4367 EOF
4368 fi
4369
4370 check_inline_asm inline_asm_labels '"1:\n"'
4371
4372 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4373
4374 if enabled aarch64; then
4375     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4376     # internal assembler in clang 3.3 does not support this instruction
4377     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4378     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4379
4380     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4381
4382 elif enabled alpha; then
4383
4384     check_cflags -mieee
4385
4386 elif enabled arm; then
4387
4388     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4389 float func(float a, float b){ return a+b; }
4390 EOF
4391
4392     enabled thumb && check_cflags -mthumb || check_cflags -marm
4393
4394     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4395         enable vfp_args
4396     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4397         case "${cross_prefix:-$cc}" in
4398             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4399             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4400 __asm__ (".eabi_attribute 28, 1");
4401 int main(void) { return 0; }
4402 EOF
4403         esac
4404         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4405     fi
4406
4407     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4408     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4409     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4410     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4411     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4412     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4413
4414     [ $target_os = linux ] || [ $target_os = android ] ||
4415         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4416             $ARCH_EXT_LIST_ARM
4417
4418     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4419
4420     check_as <<EOF && enable as_dn_directive
4421 ra .dn d0.i16
4422 .unreq ra
4423 EOF
4424
4425     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4426
4427 elif enabled mips; then
4428
4429     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4430     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4431      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4432     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4433      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4434     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4435      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4436     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4437      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4438
4439 elif enabled parisc; then
4440
4441     if enabled gcc; then
4442         case $($cc -dumpversion) in
4443             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4444         esac
4445     fi
4446
4447 elif enabled ppc; then
4448
4449     enable local_aligned_8 local_aligned_16 local_aligned_32
4450
4451     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4452     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4453     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4454     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4455
4456     # AltiVec flags: The FSF version of GCC differs from the Apple version
4457     if enabled altivec; then
4458         check_cflags -maltivec -mabi=altivec &&
4459         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4460         check_cflags -faltivec
4461
4462         # check if our compiler supports Motorola AltiVec C API
4463         check_cc <<EOF || disable altivec
4464 $inc_altivec_h
4465 int main(void) {
4466     vector signed int v1 = (vector signed int) { 0 };
4467     vector signed int v2 = (vector signed int) { 1 };
4468     v1 = vec_add(v1, v2);
4469     return 0;
4470 }
4471 EOF
4472
4473         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4474     fi
4475
4476     if enabled vsx; then
4477         check_cflags -mvsx
4478     fi
4479 elif enabled x86; then
4480
4481     check_builtin rdtsc    intrin.h   "__rdtsc()"
4482     check_builtin mm_empty mmintrin.h "_mm_empty()"
4483
4484     enable local_aligned_8 local_aligned_16 local_aligned_32
4485
4486     # check whether EBP is available on x86
4487     # As 'i' is stored on the stack, this program will crash
4488     # if the base pointer is used to access it because the
4489     # base pointer is cleared in the inline assembly code.
4490     check_exec_crash <<EOF && enable ebp_available
4491 volatile int i=0;
4492 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4493 return i;
4494 EOF
4495
4496     # check whether EBX is available on x86
4497     check_inline_asm ebx_available '""::"b"(0)' &&
4498         check_inline_asm ebx_available '"":::"%ebx"'
4499
4500     # check whether xmm clobbers are supported
4501     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4502
4503     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4504         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4505
4506     # check whether binutils is new enough to compile SSSE3/MMXEXT
4507     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4508     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4509
4510     if ! disabled_any asm mmx yasm; then
4511         if check_cmd $yasmexe --version; then
4512             enabled x86_64 && yasm_extra="-m amd64"
4513             yasm_debug="-g dwarf2"
4514         elif check_cmd nasm -v; then
4515             yasmexe=nasm
4516             yasm_debug="-g -F dwarf"
4517             if enabled x86_64; then
4518                 case "$objformat" in
4519                     elf)   objformat=elf64 ;;
4520                     win32) objformat=win64 ;;
4521                 esac
4522             fi
4523         fi
4524
4525         YASMFLAGS="-f $objformat $yasm_extra"
4526         enabled pic               && append YASMFLAGS "-DPIC"
4527         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4528         case "$objformat" in
4529             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4530         esac
4531
4532         check_yasm "movbe ecx, [5]" && enable yasm ||
4533             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4534         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4535         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4536         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4537         check_yasm "CPU amdnop" || disable cpunop
4538     fi
4539
4540     case "$cpu" in
4541         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4542             disable fast_clz
4543         ;;
4544     esac
4545
4546 fi
4547
4548 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4549
4550 check_ldflags -Wl,--as-needed
4551
4552 if check_func dlopen; then
4553     ldl=
4554 elif check_func dlopen -ldl; then
4555     ldl=-ldl
4556 fi
4557
4558 if ! disabled network; then
4559     check_func getaddrinfo $network_extralibs
4560     check_func getservbyport $network_extralibs
4561     check_func inet_aton $network_extralibs
4562
4563     check_type netdb.h "struct addrinfo"
4564     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4565     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4566     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4567     check_type poll.h "struct pollfd"
4568     check_type netinet/sctp.h "struct sctp_event_subscribe"
4569     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4570     check_type netinet/in.h "struct sockaddr_in6"
4571     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4572     check_type "sys/types.h sys/socket.h" socklen_t
4573
4574     # Prefer arpa/inet.h over winsock2
4575     if check_header arpa/inet.h ; then
4576         check_func closesocket
4577     elif check_header winsock2.h ; then
4578         check_func_headers winsock2.h closesocket -lws2 &&
4579             network_extralibs="-lws2" ||
4580         { check_func_headers winsock2.h closesocket -lws2_32 &&
4581             network_extralibs="-lws2_32"; } || disable winsock2_h network
4582         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4583
4584         check_type ws2tcpip.h socklen_t
4585         check_type ws2tcpip.h "struct addrinfo"
4586         check_type ws2tcpip.h "struct group_source_req"
4587         check_type ws2tcpip.h "struct ip_mreq_source"
4588         check_type ws2tcpip.h "struct ipv6_mreq"
4589         check_type winsock2.h "struct pollfd"
4590         check_struct winsock2.h "struct sockaddr" sa_len
4591         check_type ws2tcpip.h "struct sockaddr_in6"
4592         check_type ws2tcpip.h "struct sockaddr_storage"
4593     else
4594         disable network
4595     fi
4596 fi
4597
4598 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4599 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4600 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4601 check_builtin sarestart signal.h "SA_RESTART"
4602 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4603
4604 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4605 check_func  ${malloc_prefix}memalign            && enable memalign
4606 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4607
4608 check_func  access
4609 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4610 check_func  fcntl
4611 check_func  fork
4612 check_func  gethrtime
4613 check_func  getopt
4614 check_func  getrusage
4615 check_func  gettimeofday
4616 check_func  isatty
4617 check_func  localtime_r
4618 check_func  mach_absolute_time
4619 check_func  mkstemp
4620 check_func  mmap
4621 check_func  mprotect
4622 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4623 check_func  nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4624 check_func  sched_getaffinity
4625 check_func  setrlimit
4626 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4627 check_func  strerror_r
4628 check_func  sysconf
4629 check_func  sysctl
4630 check_func  usleep
4631
4632 check_func_headers conio.h kbhit
4633 check_func_headers io.h setmode
4634 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4635 check_func_headers stdlib.h getenv
4636
4637 check_func_headers windows.h CoTaskMemFree -lole32
4638 check_func_headers windows.h GetProcessAffinityMask
4639 check_func_headers windows.h GetProcessTimes
4640 check_func_headers windows.h GetSystemTimeAsFileTime
4641 check_func_headers windows.h MapViewOfFile
4642 check_func_headers windows.h PeekNamedPipe
4643 check_func_headers windows.h SetConsoleTextAttribute
4644 check_func_headers windows.h Sleep
4645 check_func_headers windows.h VirtualAlloc
4646 check_func_headers glob.h glob
4647 enabled xlib &&
4648     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4649
4650 check_header cl/cl.h
4651 check_header direct.h
4652 check_header dlfcn.h
4653 check_header dxva.h
4654 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4655 check_header io.h
4656 check_header libcrystalhd/libcrystalhd_if.h
4657 check_header mach/mach_time.h
4658 check_header malloc.h
4659 check_header poll.h
4660 check_header sys/mman.h
4661 check_header sys/param.h
4662 check_header sys/resource.h
4663 check_header sys/select.h
4664 check_header sys/time.h
4665 check_header sys/un.h
4666 check_header termios.h
4667 check_header unistd.h
4668 check_header vdpau/vdpau.h
4669 check_header vdpau/vdpau_x11.h
4670 check_header VideoDecodeAcceleration/VDADecoder.h
4671 check_header windows.h
4672 check_header X11/extensions/XvMClib.h
4673 check_header asm/types.h
4674
4675 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4676 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4677 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4678
4679 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4680
4681 if ! disabled w32threads && ! enabled pthreads; then
4682     check_func_headers "windows.h process.h" _beginthreadex &&
4683         enable w32threads || disable w32threads
4684 fi
4685
4686 # check for some common methods of building with pthread support
4687 # do this before the optional library checks as some of them require pthreads
4688 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4689     enable pthreads
4690     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4691         add_cflags -pthread
4692         add_extralibs -pthread
4693     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4694         add_cflags -pthreads
4695         add_extralibs -pthreads
4696     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4697         add_cflags -ldl -pthread
4698         add_extralibs -ldl -pthread
4699     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4700         add_extralibs -lpthreadGC2
4701     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4702         :
4703     elif ! check_func pthread_join && ! check_func pthread_create; then
4704         disable pthreads
4705     fi
4706     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4707 fi
4708
4709
4710 if enabled pthreads; then
4711   check_func pthread_cancel
4712 fi
4713
4714 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4715 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4716
4717 check_lib math.h sin -lm && LIBM="-lm"
4718 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4719
4720 atan2f_args=2
4721 ldexpf_args=2
4722 powf_args=2
4723 fminf_args=2
4724
4725 for func in $MATH_FUNCS; do
4726     eval check_mathfunc $func \${${func}_args:-1}
4727 done
4728
4729 # these are off by default, so fail if requested and not available
4730 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4731 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4732                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4733                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4734 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4735 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4736 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4737 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4738 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4739 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4740 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4741 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4742 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4743 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4744                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4745                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4746 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4747 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4748 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4749 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"
4750 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4751 enabled fontconfig        && enable libfontconfig
4752 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4753 enabled libfreetype       && require_libfreetype
4754 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4755 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4756 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4757                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4758                                done || die "ERROR: libgsm not found"; }
4759 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4760 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4761 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4762 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4763 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4764 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4765 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4766 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4767                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4768                                die "ERROR: libopenjpeg not found"; }
4769 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4770 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4771 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4772 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4773 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4774 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4775 enabled libsmbclient      && { { check_pkg_config smbclient libsmbclient.h smbc_init &&
4776                                  require_pkg_config smbclient libsmbclient.h smbc_init; } ||
4777                                  require smbclient libsmbclient.h smbc_init -lsmbclient; }
4778 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4779 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4780 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4781 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4782     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4783     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4784 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4785 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4786                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4787                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4788 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4789 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4790 enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4791 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4792 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4793 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4794 enabled libvpx            && {
4795     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4796                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4797     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
4798                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4799     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4800     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_SVC" -lvpx || disable libvpx_vp9_encoder; } }
4801 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4802 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4803 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4804                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4805                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4806 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4807                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4808                                die "ERROR: libx265 version must be >= 17."; }
4809 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4810 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4811 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4812 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4813 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4814                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4815                                die "ERROR: openal not found"; } &&
4816                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4817                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4818 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4819                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4820                                die "ERROR: opencl not found"; } &&
4821                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4822                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4823                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }