7b8815fb6df5a3d7e6035be8a9cd73f049edfe72
[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 [LIBDIR]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
91   --enable-rpath           use rpath to allow installing libraries in paths
92                            not part of the dynamic linker search path
93                            use rpath when linking programs [USE WITH CARE]
94
95 Licensing options:
96   --enable-gpl             allow use of GPL code, the resulting libs
97                            and binaries will be under GPL [no]
98   --enable-version3        upgrade (L)GPL to version 3 [no]
99   --enable-nonfree         allow use of nonfree code, the resulting libs
100                            and binaries will be unredistributable [no]
101
102 Configuration options:
103   --disable-static         do not build static libraries [no]
104   --enable-shared          build shared libraries [no]
105   --enable-small           optimize for size instead of speed
106   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
107   --enable-gray            enable full grayscale support (slower color)
108   --disable-swscale-alpha  disable alpha channel support in swscale
109   --disable-all            disable building components, libraries and programs
110   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
111   --enable-raise-major     increase major version numbers in sonames [no]
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-avutil         disable libavutil build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Hardware accelerators:
153   --disable-d3d11va        disable D3D11VA code [autodetect]
154   --disable-dxva2          disable DXVA2 code [autodetect]
155   --disable-vaapi          disable VAAPI code [autodetect]
156   --disable-vda            disable VDA code [autodetect]
157   --disable-vdpau          disable VDPAU code [autodetect]
158
159 Individual component options:
160   --disable-everything     disable all components listed below
161   --disable-encoder=NAME   disable encoder NAME
162   --enable-encoder=NAME    enable encoder NAME
163   --disable-encoders       disable all encoders
164   --disable-decoder=NAME   disable decoder NAME
165   --enable-decoder=NAME    enable decoder NAME
166   --disable-decoders       disable all decoders
167   --disable-hwaccel=NAME   disable hwaccel NAME
168   --enable-hwaccel=NAME    enable hwaccel NAME
169   --disable-hwaccels       disable all hwaccels
170   --disable-muxer=NAME     disable muxer NAME
171   --enable-muxer=NAME      enable muxer NAME
172   --disable-muxers         disable all muxers
173   --disable-demuxer=NAME   disable demuxer NAME
174   --enable-demuxer=NAME    enable demuxer NAME
175   --disable-demuxers       disable all demuxers
176   --enable-parser=NAME     enable parser NAME
177   --disable-parser=NAME    disable parser NAME
178   --disable-parsers        disable all parsers
179   --enable-bsf=NAME        enable bitstream filter NAME
180   --disable-bsf=NAME       disable bitstream filter NAME
181   --disable-bsfs           disable all bitstream filters
182   --enable-protocol=NAME   enable protocol NAME
183   --disable-protocol=NAME  disable protocol NAME
184   --disable-protocols      disable all protocols
185   --enable-indev=NAME      enable input device NAME
186   --disable-indev=NAME     disable input device NAME
187   --disable-indevs         disable input devices
188   --enable-outdev=NAME     enable output device NAME
189   --disable-outdev=NAME    disable output device NAME
190   --disable-outdevs        disable output devices
191   --disable-devices        disable all devices
192   --enable-filter=NAME     enable filter NAME
193   --disable-filter=NAME    disable filter NAME
194   --disable-filters        disable all filters
195
196 External library support:
197   --enable-avisynth        enable reading of AviSynth script files [no]
198   --disable-bzlib          disable bzlib [autodetect]
199   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
200   --enable-frei0r          enable frei0r video filtering [no]
201   --enable-gnutls          enable gnutls, needed for https support
202                            if openssl is not used [no]
203   --disable-iconv          disable iconv [autodetect]
204   --enable-ladspa          enable LADSPA audio filtering [no]
205   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
206   --enable-libass          enable libass subtitles rendering,
207                            needed for subtitles and ass filter [no]
208   --enable-libbluray       enable BluRay reading using libbluray [no]
209   --enable-libbs2b         enable bs2b DSP library [no]
210   --enable-libcaca         enable textual display using libcaca [no]
211   --enable-libcelt         enable CELT decoding via libcelt [no]
212   --enable-libcdio         enable audio CD grabbing with libcdio [no]
213   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
214                            and libraw1394 [no]
215   --enable-libdcadec       enable DCA decoding via libdcadec [no]
216   --enable-libfaac         enable AAC encoding via libfaac [no]
217   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
218   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
219   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
220   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
221   --enable-libgme          enable Game Music Emu via libgme [no]
222   --enable-libgsm          enable GSM de/encoding via libgsm [no]
223   --enable-libiec61883     enable iec61883 via libiec61883 [no]
224   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
225   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
226   --enable-libmfx          enable HW acceleration through libmfx
227   --enable-libmodplug      enable ModPlug via libmodplug [no]
228   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
229   --enable-libnut          enable NUT (de)muxing via libnut,
230                            native (de)muxer exists [no]
231   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
232   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
233   --enable-libopencv       enable video filtering via libopencv [no]
234   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
235   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
236   --enable-libopus         enable Opus de/encoding via libopus [no]
237   --enable-libpulse        enable Pulseaudio input via libpulse [no]
238   --enable-libquvi         enable quvi input via libquvi [no]
239   --enable-librtmp         enable RTMP[E] support via librtmp [no]
240   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
241   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
242   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
243   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
244   --enable-libsoxr         enable Include libsoxr resampling [no]
245   --enable-libspeex        enable Speex de/encoding via libspeex [no]
246   --enable-libssh          enable SFTP protocol via libssh [no]
247   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
248   --enable-libtheora       enable Theora encoding via libtheora [no]
249   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
250   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
251   --enable-libv4l2         enable libv4l2/v4l-utils [no]
252   --enable-libvidstab      enable video stabilization using vid.stab [no]
253   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
254   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
255   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
256                            native implementation exists [no]
257   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
258   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
259   --enable-libwebp         enable WebP encoding via libwebp [no]
260   --enable-libx264         enable H.264 encoding via x264 [no]
261   --enable-libx265         enable HEVC encoding via x265 [no]
262   --enable-libxavs         enable AVS encoding via xavs [no]
263   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
264   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
265   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
266   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
267   --enable-libxvid         enable Xvid encoding via xvidcore,
268                            native MPEG-4/Xvid encoder exists [no]
269   --enable-libzmq          enable message passing via libzmq [no]
270   --enable-libzvbi         enable teletext support via libzvbi [no]
271   --disable-lzma           disable lzma [autodetect]
272   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
273   --enable-mmal            enable decoding via MMAL [no]
274   --enable-nvenc           enable NVIDIA NVENC support [no]
275   --enable-openal          enable OpenAL 1.1 capture support [no]
276   --enable-opencl          enable OpenCL code
277   --enable-opengl          enable OpenGL rendering [no]
278   --enable-openssl         enable openssl, needed for https support
279                            if gnutls is not used [no]
280   --disable-sdl            disable sdl [autodetect]
281   --disable-securetransport disable Secure Transport, needed for TLS support
282                            on OSX if openssl and gnutls are not used [autodetect]
283   --enable-x11grab         enable X11 grabbing (legacy) [no]
284   --disable-xlib           disable xlib [autodetect]
285   --disable-zlib           disable zlib [autodetect]
286
287 Toolchain options:
288   --arch=ARCH              select architecture [$arch]
289   --cpu=CPU                select the minimum required CPU (affects
290                            instruction selection, may crash on older CPUs)
291   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
292   --progs-suffix=SUFFIX    program name suffix []
293   --enable-cross-compile   assume a cross-compiler is used
294   --sysroot=PATH           root of cross-build tree
295   --sysinclude=PATH        location of cross-build system headers
296   --target-os=OS           compiler targets OS [$target_os]
297   --target-exec=CMD        command to run executables on target
298   --target-path=DIR        path to view of build directory on target
299   --target-samples=DIR     path to samples directory on target
300   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
301   --toolchain=NAME         set tool defaults according to NAME
302   --nm=NM                  use nm tool NM [$nm_default]
303   --ar=AR                  use archive tool AR [$ar_default]
304   --as=AS                  use assembler AS [$as_default]
305   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
306   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
307   --cc=CC                  use C compiler CC [$cc_default]
308   --cxx=CXX                use C compiler CXX [$cxx_default]
309   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
310   --ld=LD                  use linker LD [$ld_default]
311   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
312   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
313   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
314   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
315   --host-cc=HOSTCC         use host C compiler HOSTCC
316   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
317   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
318   --host-ld=HOSTLD         use host linker HOSTLD
319   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
320   --host-libs=HLIBS        use libs HLIBS when linking for host
321   --host-os=OS             compiler host OS [$target_os]
322   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
323   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
324   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
325   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
326   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
327   --extra-libs=ELIBS       add ELIBS [$ELIBS]
328   --extra-version=STRING   version string suffix []
329   --optflags=OPTFLAGS      override optimization-related compiler flags
330   --build-suffix=SUFFIX    library name suffix []
331   --enable-pic             build position-independent code
332   --enable-thumb           compile for Thumb instruction set
333   --enable-lto             use link-time optimization
334   --env="ENV=override"     override the environment variables
335
336 Advanced options (experts only):
337   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
338   --disable-symver         disable symbol versioning
339   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
340   --disable-safe-bitstream-reader
341                            disable buffer boundary checking in bitreaders
342                            (faster, but may crash)
343   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
344   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
345
346 Optimization options (experts only):
347   --disable-asm            disable all assembly optimizations
348   --disable-altivec        disable AltiVec optimizations
349   --disable-vsx            disable VSX optimizations
350   --disable-power8         disable POWER8 optimizations
351   --disable-amd3dnow       disable 3DNow! optimizations
352   --disable-amd3dnowext    disable 3DNow! extended optimizations
353   --disable-mmx            disable MMX optimizations
354   --disable-mmxext         disable MMXEXT optimizations
355   --disable-sse            disable SSE optimizations
356   --disable-sse2           disable SSE2 optimizations
357   --disable-sse3           disable SSE3 optimizations
358   --disable-ssse3          disable SSSE3 optimizations
359   --disable-sse4           disable SSE4 optimizations
360   --disable-sse42          disable SSE4.2 optimizations
361   --disable-avx            disable AVX optimizations
362   --disable-xop            disable XOP optimizations
363   --disable-fma3           disable FMA3 optimizations
364   --disable-fma4           disable FMA4 optimizations
365   --disable-avx2           disable AVX2 optimizations
366   --disable-armv5te        disable armv5te optimizations
367   --disable-armv6          disable armv6 optimizations
368   --disable-armv6t2        disable armv6t2 optimizations
369   --disable-vfp            disable VFP optimizations
370   --disable-neon           disable NEON optimizations
371   --disable-inline-asm     disable use of inline assembly
372   --disable-yasm           disable use of nasm/yasm assembly
373   --disable-mips32r5       disable MIPS32R5 optimizations
374   --disable-mips64r6       disable MIPS64R6 optimizations
375   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
376   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
377   --disable-msa            disable MSA optimizations
378   --disable-mipsfpu        disable floating point MIPS optimizations
379   --disable-mmi            disable Loongson SIMD optimizations
380   --disable-fast-unaligned consider unaligned accesses slow
381
382 Developer options (useful when working on FFmpeg itself):
383   --disable-debug          disable debugging symbols
384   --enable-debug=LEVEL     set the debug level [$debuglevel]
385   --disable-optimizations  disable compiler optimizations
386   --enable-extra-warnings  enable more compiler warnings
387   --disable-stripping      disable stripping of executables and shared libraries
388   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
389                            2 causes a slowdown at runtime.
390   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
391   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
392                            leaks and errors, using the specified valgrind binary.
393                            Cannot be combined with --target-exec
394   --enable-ftrapv          Trap arithmetic overflows
395   --samples=PATH           location of test samples for FATE, if not set use
396                            \$FATE_SAMPLES at make invocation time.
397   --enable-neon-clobber-test check NEON registers for clobbering (should be
398                            used only for debugging purposes)
399   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
400                            should be used only for debugging purposes)
401   --enable-random          randomly enable/disable components
402   --disable-random
403   --enable-random=LIST     randomly enable/disable specific components or
404   --disable-random=LIST    component groups. LIST is a comma-separated list
405                            of NAME[:PROB] entries where NAME is a component
406                            (group) and PROB the probability associated with
407                            NAME (default 0.5).
408   --random-seed=VALUE      seed value for --enable/disable-random
409   --disable-valgrind-backtrace do not print a backtrace under Valgrind
410                            (only applies to --disable-optimizations builds)
411
412 NOTE: Object files are built at the place where configure is launched.
413 EOF
414   exit 0
415 }
416
417 quotes='""'
418
419 log(){
420     echo "$@" >> $logfile
421 }
422
423 log_file(){
424     log BEGIN $1
425     pr -n -t $1 >> $logfile
426     log END $1
427 }
428
429 echolog(){
430     log "$@"
431     echo "$@"
432 }
433
434 warn(){
435     log "WARNING: $*"
436     WARNINGS="${WARNINGS}WARNING: $*\n"
437 }
438
439 die(){
440     echolog "$@"
441     cat <<EOF
442
443 If you think configure made a mistake, make sure you are using the latest
444 version from Git.  If the latest version fails, report the problem to the
445 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
446 EOF
447     if disabled logging; then
448         cat <<EOF
449 Rerun configure with logging enabled (do not use --disable-logging), and
450 include the log this produces with your report.
451 EOF
452     else
453         cat <<EOF
454 Include the log file "$logfile" produced by configure as this will help
455 solve the problem.
456 EOF
457     fi
458     exit 1
459 }
460
461 # Avoid locale weirdness, besides we really just want to translate ASCII.
462 toupper(){
463     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
464 }
465
466 tolower(){
467     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
468 }
469
470 c_escape(){
471     echo "$*" | sed 's/["\\]/\\\0/g'
472 }
473
474 sh_quote(){
475     v=$(echo "$1" | sed "s/'/'\\\\''/g")
476     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
477     echo "$v"
478 }
479
480 cleanws(){
481     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
482 }
483
484 filter(){
485     pat=$1
486     shift
487     for v; do
488         eval "case $v in $pat) echo $v ;; esac"
489     done
490 }
491
492 filter_out(){
493     pat=$1
494     shift
495     for v; do
496         eval "case $v in $pat) ;; *) echo $v ;; esac"
497     done
498 }
499
500 map(){
501     m=$1
502     shift
503     for v; do eval $m; done
504 }
505
506 add_suffix(){
507     suffix=$1
508     shift
509     for v; do echo ${v}${suffix}; done
510 }
511
512 set_all(){
513     value=$1
514     shift
515     for var in $*; do
516         eval $var=$value
517     done
518 }
519
520 set_weak(){
521     value=$1
522     shift
523     for var; do
524         eval : \${$var:=$value}
525     done
526 }
527
528 sanitize_var_name(){
529     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
530 }
531
532 set_safe(){
533     var=$1
534     shift
535     eval $(sanitize_var_name "$var")='$*'
536 }
537
538 get_safe(){
539     eval echo \$$(sanitize_var_name "$1")
540 }
541
542 pushvar(){
543     for pvar in $*; do
544         eval level=\${${pvar}_level:=0}
545         eval ${pvar}_${level}="\$$pvar"
546         eval ${pvar}_level=$(($level+1))
547     done
548 }
549
550 popvar(){
551     for pvar in $*; do
552         eval level=\${${pvar}_level:-0}
553         test $level = 0 && continue
554         eval level=$(($level-1))
555         eval $pvar="\${${pvar}_${level}}"
556         eval ${pvar}_level=$level
557         eval unset ${pvar}_${level}
558     done
559 }
560
561 enable(){
562     set_all yes $*
563 }
564
565 disable(){
566     set_all no $*
567 }
568
569 enable_weak(){
570     set_weak yes $*
571 }
572
573 disable_weak(){
574     set_weak no $*
575 }
576
577 enable_safe(){
578     for var; do
579         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
580     done
581 }
582
583 disable_safe(){
584     for var; do
585         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
586     done
587 }
588
589 do_enable_deep(){
590     for var; do
591         enabled $var && continue
592         eval sel="\$${var}_select"
593         eval sgs="\$${var}_suggest"
594         pushvar var sgs
595         enable_deep $sel
596         popvar sgs
597         enable_deep_weak $sgs
598         popvar var
599     done
600 }
601
602 enable_deep(){
603     do_enable_deep $*
604     enable $*
605 }
606
607 enable_deep_weak(){
608     for var; do
609         disabled $var && continue
610         pushvar var
611         do_enable_deep $var
612         popvar var
613         enable_weak $var
614     done
615 }
616
617 enabled(){
618     test "${1#!}" = "$1" && op== || op=!=
619     eval test "x\$${1#!}" $op "xyes"
620 }
621
622 disabled(){
623     test "${1#!}" = "$1" && op== || op=!=
624     eval test "x\$${1#!}" $op "xno"
625 }
626
627 enabled_all(){
628     for opt; do
629         enabled $opt || return 1
630     done
631 }
632
633 disabled_all(){
634     for opt; do
635         disabled $opt || return 1
636     done
637 }
638
639 enabled_any(){
640     for opt; do
641         enabled $opt && return 0
642     done
643 }
644
645 disabled_any(){
646     for opt; do
647         disabled $opt && return 0
648     done
649     return 1
650 }
651
652 set_default(){
653     for opt; do
654         eval : \${$opt:=\$${opt}_default}
655     done
656 }
657
658 is_in(){
659     value=$1
660     shift
661     for var in $*; do
662         [ $var = $value ] && return 0
663     done
664     return 1
665 }
666
667 do_check_deps(){
668     for cfg; do
669         cfg="${cfg#!}"
670         enabled ${cfg}_checking && die "Circular dependency for $cfg."
671         disabled ${cfg}_checking && continue
672         enable ${cfg}_checking
673         append allopts $cfg
674
675         eval dep_all="\$${cfg}_deps"
676         eval dep_any="\$${cfg}_deps_any"
677         eval dep_sel="\$${cfg}_select"
678         eval dep_sgs="\$${cfg}_suggest"
679         eval dep_ifa="\$${cfg}_if"
680         eval dep_ifn="\$${cfg}_if_any"
681
682         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
683         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
684         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
685
686         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
687         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
688         enabled_all  $dep_all || disable $cfg
689         enabled_any  $dep_any || disable $cfg
690         disabled_any $dep_sel && disable $cfg
691
692         if enabled $cfg; then
693             enable_deep $dep_sel
694             enable_deep_weak $dep_sgs
695         fi
696
697         disable ${cfg}_checking
698     done
699 }
700
701 check_deps(){
702     unset allopts
703
704     do_check_deps "$@"
705
706     for cfg in $allopts; do
707         enabled $cfg || continue
708         eval dep_extralibs="\$${cfg}_extralibs"
709         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
710     done
711 }
712
713 print_config(){
714     pfx=$1
715     files=$2
716     shift 2
717     map 'eval echo "$v \${$v:-no}"' "$@" |
718     awk "BEGIN { split(\"$files\", files) }
719         {
720             c = \"$pfx\" toupper(\$1);
721             v = \$2;
722             sub(/yes/, 1, v);
723             sub(/no/,  0, v);
724             for (f in files) {
725                 file = files[f];
726                 if (file ~ /\\.h\$/) {
727                     printf(\"#define %s %d\\n\", c, v) >>file;
728                 } else if (file ~ /\\.asm\$/) {
729                     printf(\"%%define %s %d\\n\", c, v) >>file;
730                 } else if (file ~ /\\.mak\$/) {
731                     n = -v ? \"\" : \"!\";
732                     printf(\"%s%s=yes\\n\", n, c) >>file;
733                 } else if (file ~ /\\.texi\$/) {
734                     pre = -v ? \"\" : \"@c \";
735                     yesno = \$2;
736                     c2 = tolower(c);
737                     gsub(/_/, \"-\", c2);
738                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
739                 }
740             }
741         }"
742 }
743
744 print_enabled(){
745     suf=$1
746     shift
747     for v; do
748         enabled $v && printf "%s\n" ${v%$suf};
749     done
750 }
751
752 append(){
753     var=$1
754     shift
755     eval "$var=\"\$$var $*\""
756 }
757
758 prepend(){
759     var=$1
760     shift
761     eval "$var=\"$* \$$var\""
762 }
763
764 unique(){
765     var=$1
766     uniq_list=""
767     for tok in $(eval echo \$$var); do
768         uniq_list="$(filter_out $tok $uniq_list) $tok"
769     done
770     eval "$var=\"${uniq_list}\""
771 }
772
773 add_cppflags(){
774     append CPPFLAGS "$@"
775 }
776
777 add_cflags(){
778     append CFLAGS $($cflags_filter "$@")
779 }
780
781 add_cxxflags(){
782     append CXXFLAGS $($cflags_filter "$@")
783 }
784
785 add_asflags(){
786     append ASFLAGS $($asflags_filter "$@")
787 }
788
789 add_ldflags(){
790     append LDFLAGS $($ldflags_filter "$@")
791 }
792
793 add_ldexeflags(){
794     append LDEXEFLAGS $($ldflags_filter "$@")
795 }
796
797 add_ldlibflags(){
798     append LDLIBFLAGS $($ldflags_filter "$@")
799 }
800
801 add_stripflags(){
802     append ASMSTRIPFLAGS "$@"
803 }
804
805 add_extralibs(){
806     prepend extralibs $($ldflags_filter "$@")
807 }
808
809 add_host_cppflags(){
810     append host_cppflags "$@"
811 }
812
813 add_host_cflags(){
814     append host_cflags $($host_cflags_filter "$@")
815 }
816
817 add_host_ldflags(){
818     append host_ldflags $($host_ldflags_filter "$@")
819 }
820
821 add_compat(){
822     append compat_objs $1
823     shift
824     map 'add_cppflags -D$v' "$@"
825 }
826
827 check_cmd(){
828     log "$@"
829     "$@" >> $logfile 2>&1
830 }
831
832 check_stat(){
833     log check_stat "$@"
834     stat "$1" >> $logfile 2>&1
835 }
836
837 cc_o(){
838     eval printf '%s\\n' $CC_O
839 }
840
841 cc_e(){
842     eval printf '%s\\n' $CC_E
843 }
844
845 check_cc(){
846     log check_cc "$@"
847     cat > $TMPC
848     log_file $TMPC
849     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
850 }
851
852 check_cxx(){
853     log check_cxx "$@"
854     cat > $TMPCPP
855     log_file $TMPCPP
856     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
857 }
858
859 check_oc(){
860     log check_oc "$@"
861     cat > $TMPM
862     log_file $TMPM
863     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
864 }
865
866 check_cpp(){
867     log check_cpp "$@"
868     cat > $TMPC
869     log_file $TMPC
870     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
871 }
872
873 as_o(){
874     eval printf '%s\\n' $AS_O
875 }
876
877 check_as(){
878     log check_as "$@"
879     cat > $TMPS
880     log_file $TMPS
881     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
882 }
883
884 check_inline_asm(){
885     log check_inline_asm "$@"
886     name="$1"
887     code="$2"
888     shift 2
889     disable $name
890     check_cc "$@" <<EOF && enable $name
891 void foo(void){ __asm__ volatile($code); }
892 EOF
893 }
894
895 check_insn(){
896     log check_insn "$@"
897     check_inline_asm ${1}_inline "\"$2\""
898     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
899 }
900
901 check_yasm(){
902     log check_yasm "$@"
903     echo "$1" > $TMPS
904     log_file $TMPS
905     shift 1
906     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
907 }
908
909 ld_o(){
910     eval printf '%s\\n' $LD_O
911 }
912
913 check_ld(){
914     log check_ld "$@"
915     type=$1
916     shift 1
917     flags=$(filter_out '-l*|*.so' $@)
918     libs=$(filter '-l*|*.so' $@)
919     check_$type $($cflags_filter $flags) || return
920     flags=$($ldflags_filter $flags)
921     libs=$($ldflags_filter $libs)
922     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
923 }
924
925 print_include(){
926     hdr=$1
927     test "${hdr%.h}" = "${hdr}" &&
928         echo "#include $hdr"    ||
929         echo "#include <$hdr>"
930 }
931
932 check_code(){
933     log check_code "$@"
934     check=$1
935     headers=$2
936     code=$3
937     shift 3
938     {
939         for hdr in $headers; do
940             print_include $hdr
941         done
942         echo "int main(void) { $code; return 0; }"
943     } | check_$check "$@"
944 }
945
946 check_cppflags(){
947     log check_cppflags "$@"
948     check_cc "$@" <<EOF && append CPPFLAGS "$@"
949 int x;
950 EOF
951 }
952
953 test_cflags(){
954     log test_cflags "$@"
955     set -- $($cflags_filter "$@")
956     check_cc "$@" <<EOF
957 int x;
958 EOF
959 }
960
961 check_cflags(){
962     log check_cflags "$@"
963     test_cflags "$@" && add_cflags "$@"
964 }
965
966 check_cxxflags(){
967     log check_cxxflags "$@"
968     set -- $($cflags_filter "$@")
969     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
970 int x;
971 EOF
972 }
973
974 test_ldflags(){
975     log test_ldflags "$@"
976     check_ld "cc" "$@" <<EOF
977 int main(void){ return 0; }
978 EOF
979 }
980
981 check_ldflags(){
982     log check_ldflags "$@"
983     test_ldflags "$@" && add_ldflags "$@"
984 }
985
986 test_stripflags(){
987     log test_stripflags "$@"
988     # call check_cc to get a fresh TMPO
989     check_cc <<EOF
990 int main(void) { return 0; }
991 EOF
992     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
993 }
994
995 check_stripflags(){
996     log check_stripflags "$@"
997     test_stripflags "$@" && add_stripflags "$@"
998 }
999
1000 check_header(){
1001     log check_header "$@"
1002     header=$1
1003     shift
1004     disable_safe $header
1005     check_cpp "$@" <<EOF && enable_safe $header
1006 #include <$header>
1007 int x;
1008 EOF
1009 }
1010
1011 check_header_oc(){
1012     log check_header_oc "$@"
1013     rm -f -- "$TMPO"
1014     header=$1
1015     shift
1016     disable_safe $header
1017     {
1018        echo "#include <$header>"
1019        echo "int main(void) { return 0; }"
1020     } | check_oc && check_stat "$TMPO" && enable_safe $headers
1021 }
1022
1023 check_func(){
1024     log check_func "$@"
1025     func=$1
1026     shift
1027     disable $func
1028     check_ld "cc" "$@" <<EOF && enable $func
1029 extern int $func();
1030 int main(void){ $func(); }
1031 EOF
1032 }
1033
1034 check_mathfunc(){
1035     log check_mathfunc "$@"
1036     func=$1
1037     narg=$2
1038     shift 2
1039     test $narg = 2 && args="f, g" || args="f"
1040     disable $func
1041     check_ld "cc" "$@" <<EOF && enable $func
1042 #include <math.h>
1043 float foo(float f, float g) { return $func($args); }
1044 int main(void){ return (int) foo; }
1045 EOF
1046 }
1047
1048 check_func_headers(){
1049     log check_func_headers "$@"
1050     headers=$1
1051     funcs=$2
1052     shift 2
1053     {
1054         for hdr in $headers; do
1055             print_include $hdr
1056         done
1057         for func in $funcs; do
1058             echo "long check_$func(void) { return (long) $func; }"
1059         done
1060         echo "int main(void) { return 0; }"
1061     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1062 }
1063
1064 check_class_headers_cpp(){
1065     log check_class_headers_cpp "$@"
1066     headers=$1
1067     classes=$2
1068     shift 2
1069     {
1070         for hdr in $headers; do
1071             echo "#include <$hdr>"
1072         done
1073         echo "int main(void) { "
1074         i=1
1075         for class in $classes; do
1076             echo "$class obj$i;"
1077             i=$(expr $i + 1)
1078         done
1079         echo "return 0; }"
1080     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1081 }
1082
1083 check_cpp_condition(){
1084     log check_cpp_condition "$@"
1085     header=$1
1086     condition=$2
1087     shift 2
1088     check_cpp "$@" <<EOF
1089 #include <$header>
1090 #if !($condition)
1091 #error "unsatisfied condition: $condition"
1092 #endif
1093 EOF
1094 }
1095
1096 check_lib(){
1097     log check_lib "$@"
1098     header="$1"
1099     func="$2"
1100     shift 2
1101     check_header $header && check_func $func "$@" && add_extralibs "$@"
1102 }
1103
1104 check_lib2(){
1105     log check_lib2 "$@"
1106     headers="$1"
1107     funcs="$2"
1108     shift 2
1109     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1110 }
1111
1112 check_lib_cpp(){
1113     log check_lib_cpp "$@"
1114     headers="$1"
1115     classes="$2"
1116     shift 2
1117     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1118 }
1119
1120 check_pkg_config(){
1121     log check_pkg_config "$@"
1122     pkgandversion="$1"
1123     pkg="${1%% *}"
1124     headers="$2"
1125     funcs="$3"
1126     shift 3
1127     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1128     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1129     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1130     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1131         set_safe "${pkg}_cflags" $pkg_cflags   &&
1132         set_safe "${pkg}_libs"   $pkg_libs
1133 }
1134
1135 check_exec(){
1136     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1137 }
1138
1139 check_exec_crash(){
1140     code=$(cat)
1141
1142     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1143     # are safe but may not be available everywhere.  Thus we use
1144     # raise(SIGTERM) instead.  The check is run in a subshell so we
1145     # can redirect the "Terminated" message from the shell.  SIGBUS
1146     # is not defined by standard C so it is used conditionally.
1147
1148     (check_exec "$@") >> $logfile 2>&1 <<EOF
1149 #include <signal.h>
1150 static void sighandler(int sig){
1151     raise(SIGTERM);
1152 }
1153 int foo(void){
1154     $code
1155 }
1156 int (*func_ptr)(void) = foo;
1157 int main(void){
1158     signal(SIGILL, sighandler);
1159     signal(SIGFPE, sighandler);
1160     signal(SIGSEGV, sighandler);
1161 #ifdef SIGBUS
1162     signal(SIGBUS, sighandler);
1163 #endif
1164     return func_ptr();
1165 }
1166 EOF
1167 }
1168
1169 check_type(){
1170     log check_type "$@"
1171     headers=$1
1172     type=$2
1173     shift 2
1174     disable_safe "$type"
1175     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1176 }
1177
1178 check_struct(){
1179     log check_struct "$@"
1180     headers=$1
1181     struct=$2
1182     member=$3
1183     shift 3
1184     disable_safe "${struct}_${member}"
1185     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1186         enable_safe "${struct}_${member}"
1187 }
1188
1189 check_builtin(){
1190     log check_builtin "$@"
1191     name=$1
1192     headers=$2
1193     builtin=$3
1194     shift 3
1195     disable "$name"
1196     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1197 }
1198
1199 check_compile_assert(){
1200     log check_compile_assert "$@"
1201     name=$1
1202     headers=$2
1203     condition=$3
1204     shift 3
1205     disable "$name"
1206     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1207 }
1208
1209 require(){
1210     name="$1"
1211     header="$2"
1212     func="$3"
1213     shift 3
1214     check_lib $header $func "$@" || die "ERROR: $name not found"
1215 }
1216
1217 require2(){
1218     name="$1"
1219     headers="$2"
1220     func="$3"
1221     shift 3
1222     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1223 }
1224
1225 require_cpp(){
1226     name="$1"
1227     headers="$2"
1228     classes="$3"
1229     shift 3
1230     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1231 }
1232
1233 use_pkg_config(){
1234     pkg="$1"
1235     check_pkg_config "$@" || return 1
1236     add_cflags    $(get_safe "${pkg}_cflags")
1237     add_extralibs $(get_safe "${pkg}_libs")
1238 }
1239
1240 require_pkg_config(){
1241     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1242 }
1243
1244 require_libfreetype(){
1245     log require_libfreetype "$@"
1246     pkg="freetype2"
1247     check_cmd $pkg_config --exists --print-errors $pkg \
1248       || die "ERROR: $pkg not found"
1249     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1250     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1251     {
1252         echo "#include <ft2build.h>"
1253         echo "#include FT_FREETYPE_H"
1254         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1255         echo "int main(void) { return 0; }"
1256     } | check_ld "cc" $pkg_cflags $pkg_libs \
1257       && set_safe "${pkg}_cflags" $pkg_cflags \
1258       && set_safe "${pkg}_libs"   $pkg_libs \
1259       || die "ERROR: $pkg not found"
1260     add_cflags    $(get_safe "${pkg}_cflags")
1261     add_extralibs $(get_safe "${pkg}_libs")
1262 }
1263
1264 hostcc_e(){
1265     eval printf '%s\\n' $HOSTCC_E
1266 }
1267
1268 hostcc_o(){
1269     eval printf '%s\\n' $HOSTCC_O
1270 }
1271
1272 check_host_cc(){
1273     log check_host_cc "$@"
1274     cat > $TMPC
1275     log_file $TMPC
1276     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1277 }
1278
1279 check_host_cpp(){
1280     log check_host_cpp "$@"
1281     cat > $TMPC
1282     log_file $TMPC
1283     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1284 }
1285
1286 check_host_cppflags(){
1287     log check_host_cppflags "$@"
1288     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1289 int x;
1290 EOF
1291 }
1292
1293 check_host_cflags(){
1294     log check_host_cflags "$@"
1295     set -- $($host_cflags_filter "$@")
1296     check_host_cc "$@" <<EOF && append host_cflags "$@"
1297 int x;
1298 EOF
1299 }
1300
1301 check_host_cpp_condition(){
1302     log check_host_cpp_condition "$@"
1303     header=$1
1304     condition=$2
1305     shift 2
1306     check_host_cpp "$@" <<EOF
1307 #include <$header>
1308 #if !($condition)
1309 #error "unsatisfied condition: $condition"
1310 #endif
1311 EOF
1312 }
1313
1314 apply(){
1315     file=$1
1316     shift
1317     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1318 }
1319
1320 cp_if_changed(){
1321     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1322     mkdir -p "$(dirname $2)"
1323     $cp_f "$1" "$2"
1324 }
1325
1326 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1327 # system-dependent things.
1328
1329 COMPONENT_LIST="
1330     bsfs
1331     decoders
1332     demuxers
1333     encoders
1334     filters
1335     hwaccels
1336     indevs
1337     muxers
1338     outdevs
1339     parsers
1340     protocols
1341 "
1342
1343 EXAMPLE_LIST="
1344     avio_reading_example
1345     avio_list_dir_example
1346     decoding_encoding_example
1347     demuxing_decoding_example
1348     extract_mvs_example
1349     filter_audio_example
1350     filtering_audio_example
1351     filtering_video_example
1352     metadata_example
1353     muxing_example
1354     qsvdec_example
1355     remuxing_example
1356     resampling_audio_example
1357     scaling_video_example
1358     transcode_aac_example
1359     transcoding_example
1360 "
1361
1362 EXTERNAL_LIBRARY_LIST="
1363     avisynth
1364     bzlib
1365     crystalhd
1366     decklink
1367     frei0r
1368     gnutls
1369     iconv
1370     ladspa
1371     libaacplus
1372     libass
1373     libbluray
1374     libbs2b
1375     libcaca
1376     libcdio
1377     libcelt
1378     libdc1394
1379     libdcadec
1380     libfaac
1381     libfdk_aac
1382     libflite
1383     libfontconfig
1384     libfreetype
1385     libfribidi
1386     libgme
1387     libgsm
1388     libiec61883
1389     libilbc
1390     libkvazaar
1391     libmfx
1392     libmodplug
1393     libmp3lame
1394     libnut
1395     libopencore_amrnb
1396     libopencore_amrwb
1397     libopencv
1398     libopenh264
1399     libopenjpeg
1400     libopus
1401     libpulse
1402     libquvi
1403     librtmp
1404     libschroedinger
1405     libshine
1406     libsmbclient
1407     libsnappy
1408     libsoxr
1409     libspeex
1410     libssh
1411     libstagefright_h264
1412     libtheora
1413     libtwolame
1414     libutvideo
1415     libv4l2
1416     libvidstab
1417     libvo_aacenc
1418     libvo_amrwbenc
1419     libvorbis
1420     libvpx
1421     libwavpack
1422     libwebp
1423     libx264
1424     libx265
1425     libxavs
1426     libxcb
1427     libxcb_shm
1428     libxcb_shape
1429     libxcb_xfixes
1430     libxvid
1431     libzmq
1432     libzvbi
1433     lzma
1434     mmal
1435     nvenc
1436     openal
1437     opencl
1438     opengl
1439     openssl
1440     sdl
1441     securetransport
1442     x11grab
1443     xlib
1444     zlib
1445 "
1446
1447 DOCUMENT_LIST="
1448     doc
1449     htmlpages
1450     manpages
1451     podpages
1452     txtpages
1453 "
1454
1455 FEATURE_LIST="
1456     ftrapv
1457     gray
1458     hardcoded_tables
1459     runtime_cpudetect
1460     safe_bitstream_reader
1461     shared
1462     small
1463     static
1464     swscale_alpha
1465 "
1466
1467 HWACCEL_LIST="
1468     d3d11va
1469     dxva2
1470     vaapi
1471     vda
1472     vdpau
1473     xvmc
1474 "
1475
1476 LIBRARY_LIST="
1477     avcodec
1478     avdevice
1479     avfilter
1480     avformat
1481     avresample
1482     avutil
1483     postproc
1484     swresample
1485     swscale
1486 "
1487
1488 LICENSE_LIST="
1489     gpl
1490     nonfree
1491     version3
1492 "
1493
1494 PROGRAM_LIST="
1495     ffplay
1496     ffprobe
1497     ffserver
1498     ffmpeg
1499 "
1500
1501 SUBSYSTEM_LIST="
1502     dct
1503     dwt
1504     error_resilience
1505     faan
1506     fast_unaligned
1507     fft
1508     lsp
1509     lzo
1510     mdct
1511     pixelutils
1512     network
1513     rdft
1514 "
1515
1516 CONFIG_LIST="
1517     $COMPONENT_LIST
1518     $DOCUMENT_LIST
1519     $EXAMPLE_LIST
1520     $EXTERNAL_LIBRARY_LIST
1521     $FEATURE_LIST
1522     $HWACCEL_LIST
1523     $LICENSE_LIST
1524     $LIBRARY_LIST
1525     $PROGRAM_LIST
1526     $SUBSYSTEM_LIST
1527     fontconfig
1528     incompatible_libav_abi
1529     memalign_hack
1530     memory_poisoning
1531     neon_clobber_test
1532     pic
1533     pod2man
1534     raise_major
1535     thumb
1536     valgrind_backtrace
1537     xmm_clobber_test
1538 "
1539
1540 THREADS_LIST="
1541     pthreads
1542     os2threads
1543     w32threads
1544 "
1545
1546 ATOMICS_LIST="
1547     atomics_gcc
1548     atomics_suncc
1549     atomics_win32
1550 "
1551
1552 ARCH_LIST="
1553     aarch64
1554     alpha
1555     arm
1556     avr32
1557     avr32_ap
1558     avr32_uc
1559     bfin
1560     ia64
1561     m68k
1562     mips
1563     mips64
1564     parisc
1565     ppc
1566     ppc64
1567     s390
1568     sh4
1569     sparc
1570     sparc64
1571     tilegx
1572     tilepro
1573     tomi
1574     x86
1575     x86_32
1576     x86_64
1577 "
1578
1579 ARCH_EXT_LIST_ARM="
1580     armv5te
1581     armv6
1582     armv6t2
1583     armv8
1584     neon
1585     vfp
1586     vfpv3
1587     setend
1588 "
1589
1590 ARCH_EXT_LIST_MIPS="
1591     mipsfpu
1592     mips32r2
1593     mips32r5
1594     mips64r6
1595     mipsdspr1
1596     mipsdspr2
1597     msa
1598 "
1599
1600 ARCH_EXT_LIST_LOONGSON="
1601     loongson2
1602     loongson3
1603     mmi
1604 "
1605
1606 ARCH_EXT_LIST_X86_SIMD="
1607     amd3dnow
1608     amd3dnowext
1609     avx
1610     avx2
1611     fma3
1612     fma4
1613     mmx
1614     mmxext
1615     sse
1616     sse2
1617     sse3
1618     sse4
1619     sse42
1620     ssse3
1621     xop
1622 "
1623
1624 ARCH_EXT_LIST_PPC="
1625     altivec
1626     dcbzl
1627     ldbrx
1628     power8
1629     ppc4xx
1630     vsx
1631 "
1632
1633 ARCH_EXT_LIST_X86="
1634     $ARCH_EXT_LIST_X86_SIMD
1635     cpunop
1636     i686
1637 "
1638
1639 ARCH_EXT_LIST="
1640     $ARCH_EXT_LIST_ARM
1641     $ARCH_EXT_LIST_PPC
1642     $ARCH_EXT_LIST_X86
1643     $ARCH_EXT_LIST_MIPS
1644     $ARCH_EXT_LIST_LOONGSON
1645 "
1646
1647 ARCH_FEATURES="
1648     aligned_stack
1649     fast_64bit
1650     fast_clz
1651     fast_cmov
1652     local_aligned_8
1653     local_aligned_16
1654     local_aligned_32
1655     simd_align_16
1656 "
1657
1658 BUILTIN_LIST="
1659     atomic_cas_ptr
1660     atomic_compare_exchange
1661     machine_rw_barrier
1662     MemoryBarrier
1663     mm_empty
1664     rdtsc
1665     sarestart
1666     sync_val_compare_and_swap
1667 "
1668 HAVE_LIST_CMDLINE="
1669     inline_asm
1670     symver
1671     yasm
1672 "
1673
1674 HAVE_LIST_PUB="
1675     bigendian
1676     fast_unaligned
1677     incompatible_libav_abi
1678 "
1679
1680 HEADERS_LIST="
1681     alsa_asoundlib_h
1682     altivec_h
1683     arpa_inet_h
1684     asm_types_h
1685     cdio_paranoia_h
1686     cdio_paranoia_paranoia_h
1687     dev_bktr_ioctl_bt848_h
1688     dev_bktr_ioctl_meteor_h
1689     dev_ic_bt8xx_h
1690     dev_video_bktr_ioctl_bt848_h
1691     dev_video_meteor_ioctl_meteor_h
1692     direct_h
1693     dlfcn_h
1694     d3d11_h
1695     dxva_h
1696     ES2_gl_h
1697     gsm_h
1698     io_h
1699     mach_mach_time_h
1700     machine_ioctl_bt848_h
1701     machine_ioctl_meteor_h
1702     malloc_h
1703     openjpeg_1_5_openjpeg_h
1704     OpenGL_gl3_h
1705     poll_h
1706     sndio_h
1707     soundcard_h
1708     sys_mman_h
1709     sys_param_h
1710     sys_resource_h
1711     sys_select_h
1712     sys_soundcard_h
1713     sys_time_h
1714     sys_un_h
1715     sys_videoio_h
1716     termios_h
1717     udplite_h
1718     unistd_h
1719     valgrind_valgrind_h
1720     windows_h
1721     winsock2_h
1722 "
1723
1724 INTRINSICS_LIST="
1725     intrinsics_neon
1726 "
1727
1728 MATH_FUNCS="
1729     atanf
1730     atan2f
1731     cbrt
1732     cbrtf
1733     copysign
1734     cosf
1735     erf
1736     exp2
1737     exp2f
1738     expf
1739     isinf
1740     isnan
1741     ldexpf
1742     llrint
1743     llrintf
1744     log2
1745     log2f
1746     log10f
1747     lrint
1748     lrintf
1749     powf
1750     rint
1751     round
1752     roundf
1753     sinf
1754     trunc
1755     truncf
1756 "
1757
1758 SYSTEM_FUNCS="
1759     access
1760     aligned_malloc
1761     clock_gettime
1762     closesocket
1763     CommandLineToArgvW
1764     CoTaskMemFree
1765     CryptGenRandom
1766     dlopen
1767     fcntl
1768     flt_lim
1769     fork
1770     getaddrinfo
1771     gethrtime
1772     getopt
1773     GetProcessAffinityMask
1774     GetProcessMemoryInfo
1775     GetProcessTimes
1776     getrusage
1777     getservbyport
1778     GetSystemTimeAsFileTime
1779     gettimeofday
1780     glob
1781     glXGetProcAddress
1782     gmtime_r
1783     inet_aton
1784     isatty
1785     jack_port_get_latency_range
1786     kbhit
1787     localtime_r
1788     lzo1x_999_compress
1789     mach_absolute_time
1790     MapViewOfFile
1791     memalign
1792     mkstemp
1793     mmap
1794     mprotect
1795     nanosleep
1796     PeekNamedPipe
1797     posix_memalign
1798     pthread_cancel
1799     sched_getaffinity
1800     SetConsoleTextAttribute
1801     SetConsoleCtrlHandler
1802     setmode
1803     setrlimit
1804     Sleep
1805     strerror_r
1806     sysconf
1807     sysctl
1808     usleep
1809     VirtualAlloc
1810     wglGetProcAddress
1811 "
1812
1813 TOOLCHAIN_FEATURES="
1814     as_dn_directive
1815     as_func
1816     as_object_arch
1817     asm_mod_q
1818     attribute_may_alias
1819     attribute_packed
1820     ebp_available
1821     ebx_available
1822     gnu_as
1823     gnu_windres
1824     ibm_asm
1825     inline_asm_labels
1826     inline_asm_nonlocal_labels
1827     inline_asm_direct_symbol_refs
1828     pragma_deprecated
1829     rsync_contimeout
1830     symver_asm_label
1831     symver_gnu_asm
1832     vfp_args
1833     xform_asm
1834     xmm_clobbers
1835 "
1836
1837 TYPES_LIST="
1838     CONDITION_VARIABLE_Ptr
1839     socklen_t
1840     struct_addrinfo
1841     struct_dcadec_exss_info_matrix_encoding
1842     struct_group_source_req
1843     struct_ip_mreq_source
1844     struct_ipv6_mreq
1845     struct_pollfd
1846     struct_rusage_ru_maxrss
1847     struct_sctp_event_subscribe
1848     struct_sockaddr_in6
1849     struct_sockaddr_sa_len
1850     struct_sockaddr_storage
1851     struct_stat_st_mtim_tv_nsec
1852     struct_v4l2_frmivalenum_discrete
1853 "
1854
1855 HAVE_LIST="
1856     $ARCH_EXT_LIST
1857     $(add_suffix _external $ARCH_EXT_LIST)
1858     $(add_suffix _inline   $ARCH_EXT_LIST)
1859     $ARCH_FEATURES
1860     $ATOMICS_LIST
1861     $BUILTIN_LIST
1862     $HAVE_LIST_CMDLINE
1863     $HAVE_LIST_PUB
1864     $HEADERS_LIST
1865     $INTRINSICS_LIST
1866     $MATH_FUNCS
1867     $SYSTEM_FUNCS
1868     $THREADS_LIST
1869     $TOOLCHAIN_FEATURES
1870     $TYPES_LIST
1871     atomics_native
1872     dos_paths
1873     dxva2api_cobj
1874     dxva2_lib
1875     libc_msvcrt
1876     libdc1394_1
1877     libdc1394_2
1878     makeinfo
1879     makeinfo_html
1880     perl
1881     pod2man
1882     sdl
1883     section_data_rel_ro
1884     texi2html
1885     threads
1886     vaapi_x11
1887     vdpau_x11
1888     xlib
1889 "
1890
1891 # options emitted with CONFIG_ prefix but not available on the command line
1892 CONFIG_EXTRA="
1893     aandcttables
1894     ac3dsp
1895     audio_frame_queue
1896     audiodsp
1897     blockdsp
1898     bswapdsp
1899     cabac
1900     dvprofile
1901     exif
1902     faandct
1903     faanidct
1904     fdctdsp
1905     flacdsp
1906     fmtconvert
1907     frame_thread_encoder
1908     g722dsp
1909     gcrypt
1910     gmp
1911     golomb
1912     gplv3
1913     h263dsp
1914     h264chroma
1915     h264dsp
1916     h264pred
1917     h264qpel
1918     hpeldsp
1919     huffman
1920     huffyuvdsp
1921     huffyuvencdsp
1922     idctdsp
1923     iirfilter
1924     imdct15
1925     intrax8
1926     ividsp
1927     jpegtables
1928     libx262
1929     lgplv3
1930     llauddsp
1931     llviddsp
1932     lpc
1933     me_cmp
1934     mpeg_er
1935     mpegaudio
1936     mpegaudiodsp
1937     mpegvideo
1938     mpegvideoenc
1939     mss34dsp
1940     pixblockdsp
1941     qpeldsp
1942     qsv
1943     qsvdec
1944     qsvenc
1945     rangecoder
1946     riffdec
1947     riffenc
1948     rtpdec
1949     rtpenc_chain
1950     rv34dsp
1951     sinewin
1952     snappy
1953     startcode
1954     texturedsp
1955     texturedspenc
1956     tpeldsp
1957     videodsp
1958     vp3dsp
1959     vp56dsp
1960     vp8dsp
1961     wma_freqs
1962     wmv2dsp
1963 "
1964
1965 CMDLINE_SELECT="
1966     $ARCH_EXT_LIST
1967     $CONFIG_LIST
1968     $HAVE_LIST_CMDLINE
1969     $THREADS_LIST
1970     asm
1971     cross_compile
1972     debug
1973     extra_warnings
1974     logging
1975     lto
1976     optimizations
1977     rpath
1978     stripping
1979 "
1980
1981 PATHS_LIST="
1982     bindir
1983     datadir
1984     docdir
1985     incdir
1986     libdir
1987     mandir
1988     pkgconfigdir
1989     prefix
1990     shlibdir
1991 "
1992
1993 CMDLINE_SET="
1994     $PATHS_LIST
1995     ar
1996     arch
1997     as
1998     assert_level
1999     build_suffix
2000     cc
2001     cpu
2002     cross_prefix
2003     cxx
2004     dep_cc
2005     doxygen
2006     env
2007     extra_version
2008     gas
2009     host_cc
2010     host_cflags
2011     host_ld
2012     host_ldflags
2013     host_libs
2014     host_os
2015     install
2016     ld
2017     logfile
2018     malloc_prefix
2019     nm
2020     optflags
2021     pkg_config
2022     pkg_config_flags
2023     progs_suffix
2024     random_seed
2025     ranlib
2026     samples
2027     strip
2028     sws_max_filter_size
2029     sysinclude
2030     sysroot
2031     target_exec
2032     target_os
2033     target_path
2034     target_samples
2035     tempprefix
2036     toolchain
2037     valgrind
2038     yasmexe
2039 "
2040
2041 CMDLINE_APPEND="
2042     extra_cflags
2043     extra_cxxflags
2044     host_cppflags
2045 "
2046
2047 # code dependency declarations
2048
2049 # architecture extensions
2050
2051 armv5te_deps="arm"
2052 armv6_deps="arm"
2053 armv6t2_deps="arm"
2054 armv8_deps="aarch64"
2055 neon_deps_any="aarch64 arm"
2056 intrinsics_neon_deps="neon"
2057 vfp_deps_any="aarch64 arm"
2058 vfpv3_deps="vfp"
2059 setend_deps="arm"
2060
2061 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2062
2063 mipsfpu_deps="mips"
2064 mipsdspr1_deps="mips"
2065 mipsdspr2_deps="mips"
2066 mips32r2_deps="mips"
2067 mips32r5_deps="mips"
2068 mips64r6_deps="mips"
2069 msa_deps="mips"
2070 mmi_deps="mips"
2071
2072 altivec_deps="ppc"
2073 dcbzl_deps="ppc"
2074 ldbrx_deps="ppc"
2075 ppc4xx_deps="ppc"
2076 vsx_deps="altivec"
2077 power8_deps="vsx"
2078
2079 cpunop_deps="i686"
2080 x86_64_select="i686"
2081 x86_64_suggest="fast_cmov"
2082
2083 amd3dnow_deps="mmx"
2084 amd3dnowext_deps="amd3dnow"
2085 i686_deps="x86"
2086 mmx_deps="x86"
2087 mmxext_deps="mmx"
2088 sse_deps="mmxext"
2089 sse2_deps="sse"
2090 sse3_deps="sse2"
2091 ssse3_deps="sse3"
2092 sse4_deps="ssse3"
2093 sse42_deps="sse4"
2094 avx_deps="sse42"
2095 xop_deps="avx"
2096 fma3_deps="avx"
2097 fma4_deps="avx"
2098 avx2_deps="avx"
2099
2100 mmx_external_deps="yasm"
2101 mmx_inline_deps="inline_asm"
2102 mmx_suggest="mmx_external mmx_inline"
2103
2104 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2105     eval dep=\$${ext}_deps
2106     eval ${ext}_external_deps='"${dep}_external"'
2107     eval ${ext}_inline_deps='"${dep}_inline"'
2108     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2109 done
2110
2111 aligned_stack_if_any="aarch64 ppc x86"
2112 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2113 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2114 fast_unaligned_if_any="aarch64 ppc x86"
2115 simd_align_16_if_any="altivec neon sse"
2116
2117 # system capabilities
2118 symver_if_any="symver_asm_label symver_gnu_asm"
2119 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2120
2121 # threading support
2122 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2123 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2124 atomics_win32_if="MemoryBarrier"
2125 atomics_native_if_any="$ATOMICS_LIST"
2126 w32threads_deps="atomics_native"
2127 threads_if_any="$THREADS_LIST"
2128
2129 # subsystems
2130 dct_select="rdft"
2131 error_resilience_select="me_cmp"
2132 faandct_deps="faan fdctdsp"
2133 faanidct_deps="faan idctdsp"
2134 frame_thread_encoder_deps="encoders threads"
2135 intrax8_select="error_resilience"
2136 mdct_select="fft"
2137 rdft_select="fft"
2138 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2139 mpeg_er_select="error_resilience"
2140 mpegaudio_select="mpegaudiodsp"
2141 mpegaudiodsp_select="dct"
2142 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2143 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2144 qsvdec_select="qsv"
2145 qsvenc_select="qsv"
2146
2147 # decoders / encoders
2148 aac_decoder_select="imdct15 mdct sinewin"
2149 aac_fixed_decoder_select="mdct sinewin"
2150 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2151 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2152 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2153 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2154 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2155 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2156 adpcm_g722_decoder_select="g722dsp"
2157 adpcm_g722_encoder_select="g722dsp"
2158 aic_decoder_select="golomb idctdsp"
2159 alac_encoder_select="lpc"
2160 als_decoder_select="bswapdsp"
2161 amrnb_decoder_select="lsp"
2162 amrwb_decoder_select="lsp"
2163 amv_decoder_select="sp5x_decoder exif"
2164 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2165 ape_decoder_select="bswapdsp llauddsp"
2166 apng_decoder_select="zlib"
2167 apng_encoder_select="huffyuvencdsp zlib"
2168 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2169 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2170 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2171 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2172 atrac1_decoder_select="mdct sinewin"
2173 atrac3_decoder_select="mdct"
2174 atrac3p_decoder_select="mdct sinewin"
2175 avrn_decoder_select="exif jpegtables"
2176 bink_decoder_select="blockdsp hpeldsp"
2177 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2178 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2179 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2180 cllc_decoder_select="bswapdsp"
2181 comfortnoise_encoder_select="lpc"
2182 cook_decoder_select="audiodsp mdct sinewin"
2183 cscd_decoder_select="lzo"
2184 cscd_decoder_suggest="zlib"
2185 dca_decoder_select="fmtconvert mdct"
2186 dds_decoder_select="texturedsp"
2187 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2188 dnxhd_decoder_select="blockdsp idctdsp"
2189 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2190 dvvideo_decoder_select="dvprofile idctdsp"
2191 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2192 dxa_decoder_select="zlib"
2193 eac3_decoder_select="ac3_decoder"
2194 eac3_encoder_select="ac3_encoder"
2195 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2196 eatgq_decoder_select="aandcttables"
2197 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2198 exr_decoder_select="zlib"
2199 ffv1_decoder_select="golomb rangecoder"
2200 ffv1_encoder_select="rangecoder"
2201 ffvhuff_decoder_select="huffyuv_decoder"
2202 ffvhuff_encoder_select="huffyuv_encoder"
2203 fic_decoder_select="golomb"
2204 flac_decoder_select="flacdsp golomb"
2205 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2206 flashsv_decoder_select="zlib"
2207 flashsv_encoder_select="zlib"
2208 flashsv2_encoder_select="zlib"
2209 flashsv2_decoder_select="zlib"
2210 flv_decoder_select="h263_decoder"
2211 flv_encoder_select="h263_encoder"
2212 fourxm_decoder_select="blockdsp bswapdsp"
2213 fraps_decoder_select="bswapdsp huffman"
2214 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2215 g729_decoder_select="audiodsp"
2216 h261_decoder_select="mpeg_er mpegvideo"
2217 h261_encoder_select="aandcttables mpegvideoenc"
2218 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2219 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2220 h263i_decoder_select="h263_decoder"
2221 h263p_decoder_select="h263_decoder"
2222 h263p_encoder_select="h263_encoder"
2223 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2224 h264_decoder_suggest="error_resilience"
2225 h264_qsv_decoder_deps="libmfx"
2226 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2227 h264_qsv_encoder_deps="libmfx"
2228 h264_qsv_encoder_select="qsvenc"
2229 hap_decoder_select="snappy texturedsp"
2230 hap_encoder_deps="libsnappy"
2231 hap_encoder_select="texturedspenc"
2232 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2233 hevc_qsv_encoder_deps="libmfx"
2234 hevc_qsv_encoder_select="qsvenc"
2235 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2236 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2237 iac_decoder_select="imc_decoder"
2238 imc_decoder_select="bswapdsp fft mdct sinewin"
2239 indeo3_decoder_select="hpeldsp"
2240 indeo4_decoder_select="ividsp"
2241 indeo5_decoder_select="ividsp"
2242 interplay_video_decoder_select="hpeldsp"
2243 jpegls_decoder_select="golomb mjpeg_decoder"
2244 jpegls_encoder_select="golomb"
2245 jv_decoder_select="blockdsp"
2246 lagarith_decoder_select="huffyuvdsp"
2247 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2248 loco_decoder_select="golomb"
2249 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2250 metasound_decoder_select="lsp mdct sinewin"
2251 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2252 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2253 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2254 mjpegb_decoder_select="mjpeg_decoder"
2255 mlp_decoder_select="mlp_parser"
2256 motionpixels_decoder_select="bswapdsp"
2257 mp1_decoder_select="mpegaudio"
2258 mp1float_decoder_select="mpegaudio"
2259 mp2_decoder_select="mpegaudio"
2260 mp2float_decoder_select="mpegaudio"
2261 mp3_decoder_select="mpegaudio"
2262 mp3adu_decoder_select="mpegaudio"
2263 mp3adufloat_decoder_select="mpegaudio"
2264 mp3float_decoder_select="mpegaudio"
2265 mp3on4_decoder_select="mpegaudio"
2266 mp3on4float_decoder_select="mpegaudio"
2267 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2268 mpc8_decoder_select="mpegaudiodsp"
2269 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2270 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2271 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2272 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2273 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2274 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2275 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2276 mpeg2_qsv_encoder_deps="libmfx"
2277 mpeg2_qsv_encoder_select="qsvenc"
2278 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2279 mpeg4_encoder_select="h263_encoder"
2280 msa1_decoder_select="mss34dsp"
2281 msmpeg4v1_decoder_select="h263_decoder"
2282 msmpeg4v2_decoder_select="h263_decoder"
2283 msmpeg4v2_encoder_select="h263_encoder"
2284 msmpeg4v3_decoder_select="h263_decoder"
2285 msmpeg4v3_encoder_select="h263_encoder"
2286 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2287 mts2_decoder_select="mss34dsp"
2288 mxpeg_decoder_select="mjpeg_decoder"
2289 nellymoser_decoder_select="mdct sinewin"
2290 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2291 nuv_decoder_select="idctdsp lzo"
2292 on2avc_decoder_select="mdct"
2293 opus_decoder_deps="swresample"
2294 opus_decoder_select="imdct15"
2295 png_decoder_select="zlib"
2296 png_encoder_select="huffyuvencdsp zlib"
2297 prores_decoder_select="blockdsp idctdsp"
2298 prores_encoder_select="fdctdsp"
2299 qcelp_decoder_select="lsp"
2300 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2301 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2302 ra_144_decoder_select="audiodsp"
2303 ralf_decoder_select="golomb"
2304 rawvideo_decoder_select="bswapdsp"
2305 rtjpeg_decoder_select="me_cmp"
2306 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2307 rv10_encoder_select="h263_encoder"
2308 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2309 rv20_encoder_select="h263_encoder"
2310 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2311 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2312 shorten_decoder_select="golomb"
2313 sipr_decoder_select="lsp"
2314 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2315 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2316 sonic_decoder_select="golomb rangecoder"
2317 sonic_encoder_select="golomb rangecoder"
2318 sonic_ls_encoder_select="golomb rangecoder"
2319 sp5x_decoder_select="mjpeg_decoder"
2320 svq1_decoder_select="hpeldsp"
2321 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2322 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2323 svq3_decoder_suggest="zlib"
2324 tak_decoder_select="audiodsp"
2325 tdsc_decoder_select="zlib mjpeg_decoder"
2326 theora_decoder_select="vp3_decoder"
2327 thp_decoder_select="mjpeg_decoder"
2328 tiff_decoder_suggest="zlib lzma"
2329 tiff_encoder_suggest="zlib"
2330 truehd_decoder_select="mlp_parser"
2331 truemotion2_decoder_select="bswapdsp"
2332 truespeech_decoder_select="bswapdsp"
2333 tscc_decoder_select="zlib"
2334 twinvq_decoder_select="mdct lsp sinewin"
2335 txd_decoder_select="texturedsp"
2336 utvideo_decoder_select="bswapdsp"
2337 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2338 vble_decoder_select="huffyuvdsp"
2339 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2340 vc1image_decoder_select="vc1_decoder"
2341 vorbis_decoder_select="mdct"
2342 vorbis_encoder_select="mdct"
2343 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2344 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2345 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2346 vp6a_decoder_select="vp6_decoder"
2347 vp6f_decoder_select="vp6_decoder"
2348 vp7_decoder_select="h264pred videodsp vp8dsp"
2349 vp8_decoder_select="h264pred videodsp vp8dsp"
2350 vp9_decoder_select="videodsp vp9_parser"
2351 webp_decoder_select="vp8_decoder"
2352 wmalossless_decoder_select="llauddsp"
2353 wmapro_decoder_select="mdct sinewin wma_freqs"
2354 wmav1_decoder_select="mdct sinewin wma_freqs"
2355 wmav1_encoder_select="mdct sinewin wma_freqs"
2356 wmav2_decoder_select="mdct sinewin wma_freqs"
2357 wmav2_encoder_select="mdct sinewin wma_freqs"
2358 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2359 wmv1_decoder_select="h263_decoder"
2360 wmv1_encoder_select="h263_encoder"
2361 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2362 wmv2_encoder_select="h263_encoder wmv2dsp"
2363 wmv3_decoder_select="vc1_decoder"
2364 wmv3image_decoder_select="wmv3_decoder"
2365 zerocodec_decoder_select="zlib"
2366 zlib_decoder_select="zlib"
2367 zlib_encoder_select="zlib"
2368 zmbv_decoder_select="zlib"
2369 zmbv_encoder_select="zlib"
2370
2371 # hardware accelerators
2372 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2373 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2374 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2375 vaapi_deps="va_va_h"
2376 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2377 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2378 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2379 xvmc_deps="X11_extensions_XvMClib_h"
2380
2381 h263_vaapi_hwaccel_deps="vaapi"
2382 h263_vaapi_hwaccel_select="h263_decoder"
2383 h263_vdpau_hwaccel_deps="vdpau"
2384 h263_vdpau_hwaccel_select="h263_decoder"
2385 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2386 h264_d3d11va_hwaccel_deps="d3d11va"
2387 h264_d3d11va_hwaccel_select="h264_decoder"
2388 h264_dxva2_hwaccel_deps="dxva2"
2389 h264_dxva2_hwaccel_select="h264_decoder"
2390 h264_mmal_decoder_deps="mmal"
2391 h264_mmal_hwaccel_deps="mmal"
2392 h264_mmal_decoder_select="h264_decoder"
2393 h264_mmal_encoder_deps="mmal"
2394 h264_qsv_hwaccel_deps="libmfx"
2395 h264_vaapi_hwaccel_deps="vaapi"
2396 h264_vaapi_hwaccel_select="h264_decoder"
2397 h264_vda_decoder_deps="vda"
2398 h264_vda_decoder_select="h264_decoder"
2399 h264_vda_hwaccel_deps="vda"
2400 h264_vda_hwaccel_select="h264_decoder"
2401 h264_vda_old_hwaccel_deps="vda"
2402 h264_vda_old_hwaccel_select="h264_decoder"
2403 h264_vdpau_decoder_deps="vdpau"
2404 h264_vdpau_decoder_select="h264_decoder"
2405 h264_vdpau_hwaccel_deps="vdpau"
2406 h264_vdpau_hwaccel_select="h264_decoder"
2407 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2408 hevc_d3d11va_hwaccel_select="hevc_decoder"
2409 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2410 hevc_dxva2_hwaccel_select="hevc_decoder"
2411 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2412 hevc_vdpau_hwaccel_select="hevc_decoder"
2413 mpeg_vdpau_decoder_deps="vdpau"
2414 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2415 mpeg_xvmc_hwaccel_deps="xvmc"
2416 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2417 mpeg1_vdpau_decoder_deps="vdpau"
2418 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2419 mpeg1_vdpau_hwaccel_deps="vdpau"
2420 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2421 mpeg1_xvmc_hwaccel_deps="xvmc"
2422 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2423 mpeg2_crystalhd_decoder_select="crystalhd"
2424 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2425 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2426 mpeg2_dxva2_hwaccel_deps="dxva2"
2427 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2428 mpeg2_vaapi_hwaccel_deps="vaapi"
2429 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2430 mpeg2_vdpau_hwaccel_deps="vdpau"
2431 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2432 mpeg2_xvmc_hwaccel_deps="xvmc"
2433 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2434 mpeg4_crystalhd_decoder_select="crystalhd"
2435 mpeg4_vaapi_hwaccel_deps="vaapi"
2436 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2437 mpeg4_vdpau_decoder_deps="vdpau"
2438 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2439 mpeg4_vdpau_hwaccel_deps="vdpau"
2440 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2441 msmpeg4_crystalhd_decoder_select="crystalhd"
2442 vc1_crystalhd_decoder_select="crystalhd"
2443 vc1_d3d11va_hwaccel_deps="d3d11va"
2444 vc1_d3d11va_hwaccel_select="vc1_decoder"
2445 vc1_dxva2_hwaccel_deps="dxva2"
2446 vc1_dxva2_hwaccel_select="vc1_decoder"
2447 vc1_vaapi_hwaccel_deps="vaapi"
2448 vc1_vaapi_hwaccel_select="vc1_decoder"
2449 vc1_vdpau_decoder_deps="vdpau"
2450 vc1_vdpau_decoder_select="vc1_decoder"
2451 vc1_vdpau_hwaccel_deps="vdpau"
2452 vc1_vdpau_hwaccel_select="vc1_decoder"
2453 wmv3_crystalhd_decoder_select="crystalhd"
2454 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2455 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2456 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2457 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2458 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2459
2460 # parsers
2461 h264_parser_select="h264_decoder"
2462 hevc_parser_select="golomb"
2463 mpegvideo_parser_select="mpegvideo"
2464 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2465 vc1_parser_select="mpegvideo startcode vc1_decoder"
2466
2467 # bitstream_filters
2468 mjpeg2jpeg_bsf_select="jpegtables"
2469
2470 # external libraries
2471 libaacplus_encoder_deps="libaacplus"
2472 libcelt_decoder_deps="libcelt"
2473 libdcadec_decoder_deps="libdcadec"
2474 libfaac_encoder_deps="libfaac"
2475 libfaac_encoder_select="audio_frame_queue"
2476 libfdk_aac_decoder_deps="libfdk_aac"
2477 libfdk_aac_encoder_deps="libfdk_aac"
2478 libfdk_aac_encoder_select="audio_frame_queue"
2479 libgme_demuxer_deps="libgme"
2480 libgsm_decoder_deps="libgsm"
2481 libgsm_encoder_deps="libgsm"
2482 libgsm_ms_decoder_deps="libgsm"
2483 libgsm_ms_encoder_deps="libgsm"
2484 libilbc_decoder_deps="libilbc"
2485 libilbc_encoder_deps="libilbc"
2486 libkvazaar_encoder_deps="libkvazaar"
2487 libmodplug_demuxer_deps="libmodplug"
2488 libmp3lame_encoder_deps="libmp3lame"
2489 libmp3lame_encoder_select="audio_frame_queue"
2490 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2491 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2492 libopencore_amrnb_encoder_select="audio_frame_queue"
2493 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2494 libopenh264_encoder_deps="libopenh264"
2495 libopenjpeg_decoder_deps="libopenjpeg"
2496 libopenjpeg_encoder_deps="libopenjpeg"
2497 libopus_decoder_deps="libopus"
2498 libopus_encoder_deps="libopus"
2499 libopus_encoder_select="audio_frame_queue"
2500 libquvi_demuxer_deps="libquvi"
2501 libschroedinger_decoder_deps="libschroedinger"
2502 libschroedinger_encoder_deps="libschroedinger"
2503 libshine_encoder_deps="libshine"
2504 libshine_encoder_select="audio_frame_queue"
2505 libspeex_decoder_deps="libspeex"
2506 libspeex_encoder_deps="libspeex"
2507 libspeex_encoder_select="audio_frame_queue"
2508 libstagefright_h264_decoder_deps="libstagefright_h264"
2509 libtheora_encoder_deps="libtheora"
2510 libtwolame_encoder_deps="libtwolame"
2511 libvo_aacenc_encoder_deps="libvo_aacenc"
2512 libvo_aacenc_encoder_select="audio_frame_queue"
2513 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2514 libvorbis_decoder_deps="libvorbis"
2515 libvorbis_encoder_deps="libvorbis"
2516 libvorbis_encoder_select="audio_frame_queue"
2517 libvpx_vp8_decoder_deps="libvpx"
2518 libvpx_vp8_encoder_deps="libvpx"
2519 libvpx_vp9_decoder_deps="libvpx"
2520 libvpx_vp9_encoder_deps="libvpx"
2521 libwavpack_encoder_deps="libwavpack"
2522 libwebp_encoder_deps="libwebp"
2523 libwebp_anim_encoder_deps="libwebp"
2524 libx262_encoder_deps="libx262"
2525 libx264_encoder_deps="libx264"
2526 libx264rgb_encoder_deps="libx264"
2527 libx264rgb_encoder_select="libx264_encoder"
2528 libx265_encoder_deps="libx265"
2529 libxavs_encoder_deps="libxavs"
2530 libxvid_encoder_deps="libxvid"
2531 libutvideo_decoder_deps="libutvideo"
2532 libutvideo_encoder_deps="libutvideo"
2533 libzvbi_teletext_decoder_deps="libzvbi"
2534 nvenc_encoder_deps="nvenc"
2535 nvenc_h264_encoder_deps="nvenc"
2536 nvenc_hevc_encoder_deps="nvenc"
2537
2538 # demuxers / muxers
2539 ac3_demuxer_select="ac3_parser"
2540 asf_demuxer_select="riffdec"
2541 asf_o_demuxer_select="riffdec"
2542 asf_muxer_select="riffenc"
2543 asf_stream_muxer_select="asf_muxer"
2544 avi_demuxer_select="riffdec exif"
2545 avi_muxer_select="riffenc"
2546 avisynth_demuxer_deps="avisynth"
2547 avisynth_demuxer_select="riffdec"
2548 caf_demuxer_select="riffdec"
2549 dash_muxer_select="mp4_muxer"
2550 dirac_demuxer_select="dirac_parser"
2551 dts_demuxer_select="dca_parser"
2552 dtshd_demuxer_select="dca_parser"
2553 dv_demuxer_select="dvprofile"
2554 dv_muxer_select="dvprofile"
2555 dxa_demuxer_select="riffdec"
2556 eac3_demuxer_select="ac3_parser"
2557 f4v_muxer_select="mov_muxer"
2558 flac_demuxer_select="flac_parser"
2559 hds_muxer_select="flv_muxer"
2560 hls_muxer_select="mpegts_muxer"
2561 image2_alias_pix_demuxer_select="image2_demuxer"
2562 image2_brender_pix_demuxer_select="image2_demuxer"
2563 ipod_muxer_select="mov_muxer"
2564 ismv_muxer_select="mov_muxer"
2565 libnut_demuxer_deps="libnut"
2566 libnut_muxer_deps="libnut"
2567 matroska_audio_muxer_select="matroska_muxer"
2568 matroska_demuxer_select="riffdec"
2569 matroska_demuxer_suggest="bzlib lzo zlib"
2570 matroska_muxer_select="riffenc"
2571 mmf_muxer_select="riffenc"
2572 mov_demuxer_select="riffdec"
2573 mov_demuxer_suggest="zlib"
2574 mov_muxer_select="riffenc rtpenc_chain"
2575 mp3_demuxer_select="mpegaudio_parser"
2576 mp4_muxer_select="mov_muxer"
2577 mpegts_muxer_select="adts_muxer latm_muxer"
2578 mpegtsraw_demuxer_select="mpegts_demuxer"
2579 mxf_d10_muxer_select="mxf_muxer"
2580 mxf_opatom_muxer_select="mxf_muxer"
2581 nut_muxer_select="riffenc"
2582 nuv_demuxer_select="riffdec"
2583 oga_muxer_select="ogg_muxer"
2584 ogg_demuxer_select="golomb"
2585 opus_muxer_select="ogg_muxer"
2586 psp_muxer_select="mov_muxer"
2587 rtp_demuxer_select="sdp_demuxer"
2588 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2589 rtsp_demuxer_select="http_protocol rtpdec"
2590 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2591 sap_demuxer_select="sdp_demuxer"
2592 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2593 sdp_demuxer_select="rtpdec"
2594 smoothstreaming_muxer_select="ismv_muxer"
2595 spdif_muxer_select="aac_parser"
2596 spx_muxer_select="ogg_muxer"
2597 tak_demuxer_select="tak_parser"
2598 tg2_muxer_select="mov_muxer"
2599 tgp_muxer_select="mov_muxer"
2600 vobsub_demuxer_select="mpegps_demuxer"
2601 w64_demuxer_select="wav_demuxer"
2602 w64_muxer_select="wav_muxer"
2603 wav_demuxer_select="riffdec"
2604 wav_muxer_select="riffenc"
2605 webm_muxer_select="riffenc"
2606 wtv_demuxer_select="riffdec"
2607 wtv_muxer_select="riffenc"
2608 xmv_demuxer_select="riffdec"
2609 xwma_demuxer_select="riffdec"
2610
2611 # indevs / outdevs
2612 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2613 alsa_outdev_deps="alsa_asoundlib_h"
2614 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2615 avfoundation_indev_select="avfoundation"
2616 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2617 caca_outdev_deps="libcaca"
2618 decklink_outdev_deps="decklink pthreads"
2619 decklink_outdev_extralibs="-lstdc++"
2620 decklink_indev_deps="decklink pthreads"
2621 decklink_indev_extralibs="-lstdc++"
2622 dshow_indev_deps="IBaseFilter"
2623 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2624 dv1394_indev_deps="dv1394"
2625 dv1394_indev_select="dv_demuxer"
2626 fbdev_indev_deps="linux_fb_h"
2627 fbdev_outdev_deps="linux_fb_h"
2628 gdigrab_indev_deps="CreateDIBSection"
2629 gdigrab_indev_extralibs="-lgdi32"
2630 gdigrab_indev_select="bmp_decoder"
2631 iec61883_indev_deps="libiec61883"
2632 jack_indev_deps="jack_jack_h sem_timedwait"
2633 lavfi_indev_deps="avfilter"
2634 libcdio_indev_deps="libcdio"
2635 libdc1394_indev_deps="libdc1394"
2636 libv4l2_indev_deps="libv4l2"
2637 openal_indev_deps="openal"
2638 opengl_outdev_deps="opengl"
2639 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2640 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2641 pulse_indev_deps="libpulse"
2642 pulse_outdev_deps="libpulse"
2643 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2644 qtkit_indev_select="qtkit"
2645 sdl_outdev_deps="sdl"
2646 sndio_indev_deps="sndio_h"
2647 sndio_outdev_deps="sndio_h"
2648 v4l_indev_deps="linux_videodev_h"
2649 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2650 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2651 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2652 vfwcap_indev_extralibs="-lavicap32"
2653 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2654 xv_outdev_extralibs="-lXv -lX11 -lXext"
2655 x11grab_indev_deps="x11grab"
2656 x11grab_xcb_indev_deps="libxcb"
2657
2658 # protocols
2659 async_protocol_deps="pthreads"
2660 bluray_protocol_deps="libbluray"
2661 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2662 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2663 ffrtmpcrypt_protocol_select="tcp_protocol"
2664 ffrtmphttp_protocol_deps="!librtmp_protocol"
2665 ffrtmphttp_protocol_select="http_protocol"
2666 ftp_protocol_select="tcp_protocol"
2667 gopher_protocol_select="network"
2668 http_protocol_select="tcp_protocol"
2669 httpproxy_protocol_select="tcp_protocol"
2670 https_protocol_select="tls_protocol"
2671 icecast_protocol_select="http_protocol"
2672 librtmp_protocol_deps="librtmp"
2673 librtmpe_protocol_deps="librtmp"
2674 librtmps_protocol_deps="librtmp"
2675 librtmpt_protocol_deps="librtmp"
2676 librtmpte_protocol_deps="librtmp"
2677 libsmbclient_protocol_deps="libsmbclient gplv3"
2678 libssh_protocol_deps="libssh"
2679 mmsh_protocol_select="http_protocol"
2680 mmst_protocol_select="network"
2681 rtmp_protocol_deps="!librtmp_protocol"
2682 rtmp_protocol_select="tcp_protocol"
2683 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2684 rtmps_protocol_deps="!librtmp_protocol"
2685 rtmps_protocol_select="tls_protocol"
2686 rtmpt_protocol_select="ffrtmphttp_protocol"
2687 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2688 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2689 rtp_protocol_select="udp_protocol"
2690 sctp_protocol_deps="struct_sctp_event_subscribe"
2691 sctp_protocol_select="network"
2692 srtp_protocol_select="rtp_protocol"
2693 tcp_protocol_select="network"
2694 tls_gnutls_protocol_deps="gnutls !tls_securetransport_protocol"
2695 tls_gnutls_protocol_select="tcp_protocol"
2696 tls_openssl_protocol_deps="openssl !tls_securetransport_protocol !tls_gnutls_protocol"
2697 tls_openssl_protocol_select="tcp_protocol"
2698 tls_securetransport_protocol_deps="securetransport"
2699 tls_securetransport_protocol_select="tcp_protocol"
2700 tls_protocol_deps_any="tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2701 udp_protocol_select="network"
2702 udplite_protocol_select="network"
2703 unix_protocol_deps="sys_un_h"
2704 unix_protocol_select="network"
2705
2706 # filters
2707 amovie_filter_deps="avcodec avformat"
2708 aresample_filter_deps="swresample"
2709 ass_filter_deps="libass"
2710 asyncts_filter_deps="avresample"
2711 atempo_filter_deps="avcodec"
2712 atempo_filter_select="rdft"
2713 azmq_filter_deps="libzmq"
2714 blackframe_filter_deps="gpl"
2715 boxblur_filter_deps="gpl"
2716 bs2b_filter_deps="libbs2b"
2717 colormatrix_filter_deps="gpl"
2718 cover_rect_filter_deps="avcodec avformat gpl"
2719 cropdetect_filter_deps="gpl"
2720 delogo_filter_deps="gpl"
2721 deshake_filter_select="pixelutils"
2722 drawtext_filter_deps="libfreetype"
2723 dynaudnorm_filter_deps="copysign erf"
2724 ebur128_filter_deps="gpl"
2725 eq_filter_deps="gpl"
2726 fftfilt_filter_deps="avcodec"
2727 fftfilt_filter_select="rdft"
2728 flite_filter_deps="libflite"
2729 find_rect_filter_deps="avcodec avformat gpl"
2730 frei0r_filter_deps="frei0r dlopen"
2731 frei0r_src_filter_deps="frei0r dlopen"
2732 fspp_filter_deps="gpl"
2733 geq_filter_deps="gpl"
2734 histeq_filter_deps="gpl"
2735 hqdn3d_filter_deps="gpl"
2736 interlace_filter_deps="gpl"
2737 kerndeint_filter_deps="gpl"
2738 ladspa_filter_deps="ladspa dlopen"
2739 mcdeint_filter_deps="avcodec gpl"
2740 movie_filter_deps="avcodec avformat"
2741 mpdecimate_filter_deps="gpl"
2742 mpdecimate_filter_select="pixelutils"
2743 mptestsrc_filter_deps="gpl"
2744 negate_filter_deps="lut_filter"
2745 perspective_filter_deps="gpl"
2746 pp7_filter_deps="gpl"
2747 ocv_filter_deps="libopencv"
2748 owdenoise_filter_deps="gpl"
2749 pan_filter_deps="swresample"
2750 phase_filter_deps="gpl"
2751 pp_filter_deps="gpl postproc"
2752 pullup_filter_deps="gpl"
2753 removelogo_filter_deps="avcodec avformat swscale"
2754 repeatfields_filter_deps="gpl"
2755 resample_filter_deps="avresample"
2756 sab_filter_deps="gpl swscale"
2757 scale_filter_deps="swscale"
2758 select_filter_select="pixelutils"
2759 smartblur_filter_deps="gpl swscale"
2760 showcqt_filter_deps="avcodec"
2761 showcqt_filter_select="fft"
2762 showspectrum_filter_deps="avcodec"
2763 showspectrum_filter_select="rdft"
2764 spp_filter_deps="gpl avcodec"
2765 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2766 stereo3d_filter_deps="gpl"
2767 subtitles_filter_deps="avformat avcodec libass"
2768 super2xsai_filter_deps="gpl"
2769 tinterlace_filter_deps="gpl"
2770 vidstabdetect_filter_deps="libvidstab"
2771 vidstabtransform_filter_deps="libvidstab"
2772 pixfmts_super2xsai_test_deps="super2xsai_filter"
2773 tinterlace_merge_test_deps="tinterlace_filter"
2774 tinterlace_pad_test_deps="tinterlace_filter"
2775 uspp_filter_deps="gpl avcodec"
2776 zmq_filter_deps="libzmq"
2777 zoompan_filter_deps="swscale"
2778
2779 # examples
2780 avio_reading="avformat avcodec avutil"
2781 avio_list_dir="avformat avutil"
2782 avcodec_example_deps="avcodec avutil"
2783 decoding_encoding_example_deps="avcodec avformat avutil"
2784 demuxing_decoding_example_deps="avcodec avformat avutil"
2785 extract_mvs_example_deps="avcodec avformat avutil"
2786 filter_audio_example_deps="avfilter avutil"
2787 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2788 filtering_video_example_deps="avfilter avcodec avformat avutil"
2789 metadata_example_deps="avformat avutil"
2790 muxing_example_deps="avcodec avformat avutil swscale"
2791 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2792 remuxing_example_deps="avcodec avformat avutil"
2793 resampling_audio_example_deps="avutil swresample"
2794 scaling_video_example_deps="avutil swscale"
2795 transcode_aac_example_deps="avcodec avformat swresample"
2796 transcoding_example_deps="avfilter avcodec avformat avutil"
2797
2798 # libraries, in linking order
2799 avcodec_deps="avutil"
2800 avdevice_deps="avformat avcodec avutil"
2801 avfilter_deps="avutil"
2802 avformat_deps="avcodec avutil"
2803 avresample_deps="avutil"
2804 postproc_deps="avutil gpl"
2805 swresample_deps="avutil"
2806 swscale_deps="avutil"
2807
2808 # programs
2809 ffmpeg_deps="avcodec avfilter avformat swresample"
2810 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2811                null_filter
2812                setpts_filter trim_filter"
2813 ffplay_deps="avcodec avformat swscale swresample sdl"
2814 ffplay_libs='$sdl_libs'
2815 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2816 ffprobe_deps="avcodec avformat"
2817 ffserver_deps="avformat fork sarestart"
2818 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2819
2820 # documentation
2821 podpages_deps="perl"
2822 manpages_deps="perl pod2man"
2823 htmlpages_deps="perl"
2824 htmlpages_deps_any="makeinfo_html texi2html"
2825 txtpages_deps="perl makeinfo"
2826 doc_deps_any="manpages htmlpages podpages txtpages"
2827
2828 # default parameters
2829
2830 logfile="config.log"
2831
2832 # installation paths
2833 prefix_default="/usr/local"
2834 bindir_default='${prefix}/bin'
2835 datadir_default='${prefix}/share/ffmpeg'
2836 docdir_default='${prefix}/share/doc/ffmpeg'
2837 incdir_default='${prefix}/include'
2838 libdir_default='${prefix}/lib'
2839 mandir_default='${prefix}/share/man'
2840
2841 # toolchain
2842 ar_default="ar"
2843 cc_default="gcc"
2844 cxx_default="g++"
2845 host_cc_default="gcc"
2846 cp_f="cp -f"
2847 doxygen_default="doxygen"
2848 install="install"
2849 ln_s="ln -s -f"
2850 nm_default="nm -g"
2851 objformat="elf"
2852 pkg_config_default=pkg-config
2853 ranlib_default="ranlib"
2854 strip_default="strip"
2855 yasmexe_default="yasm"
2856 windres_default="windres"
2857
2858 # OS
2859 target_os_default=$(tolower $(uname -s))
2860 host_os=$target_os_default
2861
2862 # machine
2863 if test "$target_os_default" = aix; then
2864     arch_default=$(uname -p)
2865     strip_default="strip -X32_64"
2866 else
2867     arch_default=$(uname -m)
2868 fi
2869 cpu="generic"
2870 intrinsics="none"
2871
2872 # configurable options
2873 enable $PROGRAM_LIST
2874 enable $DOCUMENT_LIST
2875 enable $EXAMPLE_LIST
2876 enable $(filter_out avresample $LIBRARY_LIST)
2877 enable stripping
2878
2879 enable asm
2880 enable debug
2881 enable doc
2882 enable faan faandct faanidct
2883 enable optimizations
2884 enable runtime_cpudetect
2885 enable safe_bitstream_reader
2886 enable static
2887 enable swscale_alpha
2888 enable valgrind_backtrace
2889
2890 sws_max_filter_size_default=256
2891 set_default sws_max_filter_size
2892
2893 # Enable hwaccels by default.
2894 enable d3d11va dxva2 vaapi vda vdpau xvmc
2895 enable xlib
2896
2897 # build settings
2898 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2899 LIBPREF="lib"
2900 LIBSUF=".a"
2901 FULLNAME='$(NAME)$(BUILDSUF)'
2902 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2903 SLIBPREF="lib"
2904 SLIBSUF=".so"
2905 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2906 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2907 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2908 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2909 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2910 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2911
2912 asflags_filter=echo
2913 cflags_filter=echo
2914 ldflags_filter=echo
2915
2916 AS_C='-c'
2917 AS_O='-o $@'
2918 CC_C='-c'
2919 CC_E='-E -o $@'
2920 CC_O='-o $@'
2921 CXX_C='-c'
2922 CXX_O='-o $@'
2923 LD_O='-o $@'
2924 LD_LIB='-l%'
2925 LD_PATH='-L'
2926 HOSTCC_C='-c'
2927 HOSTCC_E='-E -o $@'
2928 HOSTCC_O='-o $@'
2929 HOSTLD_O='-o $@'
2930
2931 host_libs='-lm'
2932 host_cflags_filter=echo
2933 host_ldflags_filter=echo
2934
2935 target_path='$(CURDIR)'
2936
2937 # since the object filename is not given with the -MM flag, the compiler
2938 # is only able to print the basename, and we must add the path ourselves
2939 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2940 DEPFLAGS='-MM'
2941
2942 # find source path
2943 if test -f configure; then
2944     source_path=.
2945 else
2946     source_path=$(cd $(dirname "$0"); pwd)
2947     echo "$source_path" | grep -q '[[:blank:]]' &&
2948         die "Out of tree builds are impossible with whitespace in source path."
2949     test -e "$source_path/config.h" &&
2950         die "Out of tree builds are impossible with config.h in source dir."
2951 fi
2952
2953 for v in "$@"; do
2954     r=${v#*=}
2955     l=${v%"$r"}
2956     r=$(sh_quote "$r")
2957     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2958 done
2959
2960 find_things(){
2961     thing=$1
2962     pattern=$2
2963     file=$source_path/$3
2964     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2965 }
2966
2967 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2968 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2969 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2970 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2971 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2972 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2973 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2974 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2975 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2976 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2977 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2978
2979 ALL_COMPONENTS="
2980     $BSF_LIST
2981     $DECODER_LIST
2982     $DEMUXER_LIST
2983     $ENCODER_LIST
2984     $FILTER_LIST
2985     $HWACCEL_LIST
2986     $INDEV_LIST
2987     $MUXER_LIST
2988     $OUTDEV_LIST
2989     $PARSER_LIST
2990     $PROTOCOL_LIST
2991 "
2992
2993 for n in $COMPONENT_LIST; do
2994     v=$(toupper ${n%s})_LIST
2995     eval enable \$$v
2996     eval ${n}_if_any="\$$v"
2997 done
2998
2999 enable $ARCH_EXT_LIST
3000
3001 die_unknown(){
3002     echo "Unknown option \"$1\"."
3003     echo "See $0 --help for available options."
3004     exit 1
3005 }
3006
3007 print_3_columns() {
3008     cat | tr ' ' '\n' | sort | pr -r -3 -t
3009 }
3010
3011 show_list() {
3012     suffix=_$1
3013     shift
3014     echo $* | sed s/$suffix//g | print_3_columns
3015     exit 0
3016 }
3017
3018 rand_list(){
3019     IFS=', '
3020     set -- $*
3021     unset IFS
3022     for thing; do
3023         comp=${thing%:*}
3024         prob=${thing#$comp}
3025         prob=${prob#:}
3026         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3027         echo "prob ${prob:-0.5}"
3028         printf '%s\n' $comp
3029     done
3030 }
3031
3032 do_random(){
3033     action=$1
3034     shift
3035     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3036     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3037 }
3038
3039 for opt do
3040     optval="${opt#*=}"
3041     case "$opt" in
3042         --extra-ldflags=*)
3043             add_ldflags $optval
3044         ;;
3045         --extra-ldexeflags=*)
3046             add_ldexeflags $optval
3047         ;;
3048         --extra-ldlibflags=*)
3049             add_ldlibflags $optval
3050         ;;
3051         --extra-libs=*)
3052             add_extralibs $optval
3053         ;;
3054         --disable-devices)
3055             disable $INDEV_LIST $OUTDEV_LIST
3056         ;;
3057         --enable-debug=*)
3058             debuglevel="$optval"
3059         ;;
3060         --disable-programs)
3061             disable $PROGRAM_LIST
3062         ;;
3063         --disable-everything)
3064             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3065         ;;
3066         --disable-all)
3067             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3068             disable $LIBRARY_LIST $PROGRAM_LIST doc
3069         ;;
3070         --enable-random|--disable-random)
3071             action=${opt%%-random}
3072             do_random ${action#--} $COMPONENT_LIST
3073         ;;
3074         --enable-random=*|--disable-random=*)
3075             action=${opt%%-random=*}
3076             do_random ${action#--} $optval
3077         ;;
3078         --enable-*=*|--disable-*=*)
3079             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3080             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3081             eval list=\$$(toupper $thing)_LIST
3082             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3083             list=$(filter "$name" $list)
3084             [ "$list" = "" ] && warn "Option $opt did not match anything"
3085             $action $list
3086         ;;
3087         --enable-?*|--disable-?*)
3088             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3089             if is_in $option $COMPONENT_LIST; then
3090                 test $action = disable && action=unset
3091                 eval $action \$$(toupper ${option%s})_LIST
3092             elif is_in $option $CMDLINE_SELECT; then
3093                 $action $option
3094             else
3095                 die_unknown $opt
3096             fi
3097         ;;
3098         --list-*)
3099             NAME="${opt#--list-}"
3100             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3101             NAME=${NAME%s}
3102             eval show_list $NAME \$$(toupper $NAME)_LIST
3103         ;;
3104         --help|-h) show_help
3105         ;;
3106         --fatal-warnings) enable fatal_warnings
3107         ;;
3108         *)
3109             optname="${opt%%=*}"
3110             optname="${optname#--}"
3111             optname=$(echo "$optname" | sed 's/-/_/g')
3112             if is_in $optname $CMDLINE_SET; then
3113                 eval $optname='$optval'
3114             elif is_in $optname $CMDLINE_APPEND; then
3115                 append $optname "$optval"
3116             else
3117                 die_unknown $opt
3118             fi
3119         ;;
3120     esac
3121 done
3122
3123 for e in $env; do
3124     eval "export $e"
3125 done
3126
3127 disabled logging && logfile=/dev/null
3128
3129 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3130 set >> $logfile
3131
3132 test -n "$valgrind" && toolchain="valgrind-memcheck"
3133
3134 case "$toolchain" in
3135     clang-asan)
3136         cc_default="clang"
3137         add_cflags  -fsanitize=address
3138         add_ldflags -fsanitize=address
3139     ;;
3140     clang-tsan)
3141         cc_default="clang"
3142         add_cflags  -fsanitize=thread -pie
3143         add_ldflags -fsanitize=thread -pie
3144     ;;
3145     clang-usan)
3146         cc_default="clang"
3147         add_cflags  -fsanitize=undefined
3148         add_ldflags -fsanitize=undefined
3149     ;;
3150     gcc-asan)
3151         cc_default="gcc"
3152         add_cflags  -fsanitize=address
3153         add_ldflags -fsanitize=address
3154     ;;
3155     gcc-tsan)
3156         cc_default="gcc"
3157         add_cflags  -fsanitize=thread -pie -fPIC
3158         add_ldflags -fsanitize=thread -pie -fPIC
3159     ;;
3160     gcc-usan)
3161         cc_default="gcc"
3162         add_cflags  -fsanitize=undefined
3163         add_ldflags -fsanitize=undefined
3164     ;;
3165     valgrind-massif)
3166         target_exec_default=${valgrind:-"valgrind"}
3167         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"
3168     ;;
3169     valgrind-memcheck)
3170         target_exec_default=${valgrind:-"valgrind"}
3171         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3172     ;;
3173     msvc)
3174         # Check whether the current MSVC version needs the C99 converter.
3175         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3176         # support enough of C99 to build ffmpeg. Default to the new
3177         # behaviour if the regexp was unable to match anything, since this
3178         # successfully parses the version number of existing supported
3179         # versions that require the converter (MSVC 2010 and 2012).
3180         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3181         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3182             cc_default="cl"
3183         else
3184             cc_default="c99wrap cl"
3185         fi
3186         ld_default="link"
3187         nm_default="dumpbin -symbols"
3188         ar_default="lib"
3189         target_os_default="win32"
3190         # Use a relative path for TMPDIR. This makes sure all the
3191         # ffconf temp files are written with a relative path, avoiding
3192         # issues with msys/win32 path conversion for MSVC parameters
3193         # such as -Fo<file> or -out:<file>.
3194         TMPDIR=.
3195     ;;
3196     icl)
3197         cc_default="icl"
3198         ld_default="xilink"
3199         nm_default="dumpbin -symbols"
3200         ar_default="xilib"
3201         target_os_default="win32"
3202         TMPDIR=.
3203     ;;
3204     gcov)
3205         add_cflags  -fprofile-arcs -ftest-coverage
3206         add_ldflags -fprofile-arcs -ftest-coverage
3207     ;;
3208     hardened)
3209         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3210         add_cflags   -fno-strict-overflow -fstack-protector-all
3211         add_ldflags  -Wl,-z,relro -Wl,-z,now
3212     ;;
3213     ?*)
3214         die "Unknown toolchain $toolchain"
3215     ;;
3216 esac
3217
3218 test -n "$cross_prefix" && enable cross_compile
3219
3220 if enabled cross_compile; then
3221     test -n "$arch" && test -n "$target_os" ||
3222         die "Must specify target arch and OS when cross-compiling"
3223 fi
3224
3225 ar_default="${cross_prefix}${ar_default}"
3226 cc_default="${cross_prefix}${cc_default}"
3227 cxx_default="${cross_prefix}${cxx_default}"
3228 nm_default="${cross_prefix}${nm_default}"
3229 pkg_config_default="${cross_prefix}${pkg_config_default}"
3230 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3231     ranlib_default="${cross_prefix}${ranlib_default} -D"
3232 else
3233     ranlib_default="${cross_prefix}${ranlib_default}"
3234 fi
3235 strip_default="${cross_prefix}${strip_default}"
3236 windres_default="${cross_prefix}${windres_default}"
3237
3238 sysinclude_default="${sysroot}/usr/include"
3239
3240 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3241     target_exec target_os yasmexe
3242 enabled cross_compile || host_cc_default=$cc
3243 set_default host_cc
3244
3245 pkg_config_fail_message=""
3246 if ! $pkg_config --version >/dev/null 2>&1; then
3247     warn "$pkg_config not found, library detection may fail."
3248     pkg_config=false
3249 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3250     pkg_config_fail_message="
3251 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3252 fi
3253
3254 if test $doxygen != $doxygen_default && \
3255   ! $doxygen --version >/dev/null 2>&1; then
3256     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3257 fi
3258
3259 exesuf() {
3260     case $1 in
3261         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3262     esac
3263 }
3264
3265 EXESUF=$(exesuf $target_os)
3266 HOSTEXESUF=$(exesuf $host_os)
3267
3268 # set temporary file name
3269 : ${TMPDIR:=$TEMPDIR}
3270 : ${TMPDIR:=$TMP}
3271 : ${TMPDIR:=/tmp}
3272
3273 if [ -n "$tempprefix" ] ; then
3274     mktemp(){
3275         echo $tempprefix.${HOSTNAME}.${UID}
3276     }
3277 elif ! check_cmd mktemp -u XXXXXX; then
3278     # simple replacement for missing mktemp
3279     # NOT SAFE FOR GENERAL USE
3280     mktemp(){
3281         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3282     }
3283 fi
3284
3285 tmpfile(){
3286     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3287         (set -C; exec > $tmp) 2>/dev/null ||
3288         die "Unable to create temporary file in $TMPDIR."
3289     append TMPFILES $tmp
3290     eval $1=$tmp
3291 }
3292
3293 trap 'rm -f -- $TMPFILES' EXIT
3294
3295 tmpfile TMPASM .asm
3296 tmpfile TMPC   .c
3297 tmpfile TMPCPP .cpp
3298 tmpfile TMPE   $EXESUF
3299 tmpfile TMPH   .h
3300 tmpfile TMPM   .m
3301 tmpfile TMPO   .o
3302 tmpfile TMPS   .S
3303 tmpfile TMPSH  .sh
3304 tmpfile TMPV   .ver
3305
3306 unset -f mktemp
3307
3308 chmod +x $TMPE
3309
3310 # make sure we can execute files in $TMPDIR
3311 cat > $TMPSH 2>> $logfile <<EOF
3312 #! /bin/sh
3313 EOF
3314 chmod +x $TMPSH >> $logfile 2>&1
3315 if ! $TMPSH >> $logfile 2>&1; then
3316     cat <<EOF
3317 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3318 variable to another directory and make sure that it is not mounted noexec.
3319 EOF
3320     die "Sanity test failed."
3321 fi
3322
3323 armasm_flags(){
3324     for flag; do
3325         case $flag in
3326             # Filter out MSVC cl.exe options from cflags that shouldn't
3327             # be passed to gas-preprocessor
3328             -M[TD]*)                                            ;;
3329             *)                  echo $flag                      ;;
3330         esac
3331    done
3332 }
3333
3334 ccc_flags(){
3335     for flag; do
3336         case $flag in
3337             -std=c99)           echo -c99                       ;;
3338             -mcpu=*)            echo -arch ${flag#*=}           ;;
3339             -mieee)             echo -ieee                      ;;
3340             -O*|-fast)          echo $flag                      ;;
3341             -fno-math-errno)    echo -assume nomath_errno       ;;
3342             -g)                 echo -g3                        ;;
3343             -Wall)              echo -msg_enable level2         ;;
3344             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3345             -Wl,*)              echo $flag                      ;;
3346             -f*|-W*)                                            ;;
3347             *)                  echo $flag                      ;;
3348         esac
3349    done
3350 }
3351
3352 cparser_flags(){
3353     for flag; do
3354         case $flag in
3355             -Wno-switch)             echo -Wno-switch-enum ;;
3356             -Wno-format-zero-length) ;;
3357             -Wdisabled-optimization) ;;
3358             -Wno-pointer-sign)       echo -Wno-other ;;
3359             *)                       echo $flag ;;
3360         esac
3361     done
3362 }
3363
3364 msvc_common_flags(){
3365     for flag; do
3366         case $flag in
3367             # In addition to specifying certain flags under the compiler
3368             # specific filters, they must be specified here as well or else the
3369             # generic catch all at the bottom will print the original flag.
3370             -Wall)                ;;
3371             -std=c99)             ;;
3372             # Common flags
3373             -fomit-frame-pointer) ;;
3374             -g)                   echo -Z7 ;;
3375             -fno-math-errno)      ;;
3376             -fno-common)          ;;
3377             -fno-signed-zeros)    ;;
3378             -fPIC)                ;;
3379             -mthumb)              ;;
3380             -march=*)             ;;
3381             -lz)                  echo zlib.lib ;;
3382             -lavifil32)           echo vfw32.lib ;;
3383             -lavicap32)           echo vfw32.lib user32.lib ;;
3384             -l*)                  echo ${flag#-l}.lib ;;
3385             -L*)                  echo -libpath:${flag#-L} ;;
3386             *)                    echo $flag ;;
3387         esac
3388     done
3389 }
3390
3391 msvc_flags(){
3392     msvc_common_flags "$@"
3393     for flag; do
3394         case $flag in
3395             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3396                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3397                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3398                                        -wd4307 \
3399                                        -wd4273 -wd4554 -wd4701 ;;
3400         esac
3401     done
3402 }
3403
3404 icl_flags(){
3405     msvc_common_flags "$@"
3406     for flag; do
3407         case $flag in
3408             # Despite what Intel's documentation says -Wall, which is supported
3409             # on Windows, does enable remarks so disable them here.
3410             -Wall)                echo $flag -Qdiag-disable:remark ;;
3411             -std=c99)             echo -Qstd=c99 ;;
3412             -flto)                echo -ipo ;;
3413         esac
3414     done
3415 }
3416
3417 icc_flags(){
3418     for flag; do
3419         case $flag in
3420             -flto)                echo -ipo ;;
3421             *)                    echo $flag ;;
3422         esac
3423     done
3424 }
3425
3426 pgi_flags(){
3427     for flag; do
3428         case $flag in
3429             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3430             -fomit-frame-pointer) echo -Mnoframe ;;
3431             -g)                   echo -gopt ;;
3432             *)                    echo $flag ;;
3433         esac
3434     done
3435 }
3436
3437 suncc_flags(){
3438     for flag; do
3439         case $flag in
3440             -march=*|-mcpu=*)
3441                 case "${flag#*=}" in
3442                     native)                   echo -xtarget=native       ;;
3443                     v9|niagara)               echo -xarch=sparc          ;;
3444                     ultrasparc)               echo -xarch=sparcvis       ;;
3445                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3446                     i586|pentium)             echo -xchip=pentium        ;;
3447                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3448                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3449                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3450                     pentium4*)          echo -xtarget=pentium4           ;;
3451                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3452                     *-sse3)             echo -xarch=sse3                 ;;
3453                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3454                     bonnell)                   echo -xarch=ssse3         ;;
3455                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3456                     westmere)                  echo -xtarget=westmere    ;;
3457                     silvermont)                echo -xarch=sse4_2        ;;
3458                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3459                     core-avx*|ivybridge|haswell|broadwell)
3460                                                echo -xarch=avx           ;;
3461                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3462                     btver1)                    echo -xarch=amdsse4a      ;;
3463                     btver2|bdver*)             echo -xarch=avx           ;;
3464                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3465                     k8|opteron|athlon64|athlon-fx)
3466                                                echo -xarch=sse2a         ;;
3467                     athlon*)                   echo -xarch=pentium_proa  ;;
3468                 esac
3469                 ;;
3470             -std=c99)             echo -xc99              ;;
3471             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3472             -fPIC)                echo -KPIC -xcode=pic32 ;;
3473             -W*,*)                echo $flag              ;;
3474             -f*-*|-W*|-mimpure-text)                      ;;
3475             -shared)              echo -G                 ;;
3476             *)                    echo $flag              ;;
3477         esac
3478     done
3479 }
3480
3481 tms470_flags(){
3482     for flag; do
3483         case $flag in
3484             -march=*|-mcpu=*)
3485                 case "${flag#*=}" in
3486                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3487                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3488                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3489                     armv6*|arm11*)          echo -mv=6   ;;
3490                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3491                                             echo -mv=5e  ;;
3492                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3493                 esac
3494                 ;;
3495             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3496             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3497             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3498             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3499             -msoft-float)   echo --float_support=vfplib       ;;
3500             -O[0-3]|-mf=*)  echo $flag                        ;;
3501             -g)             echo -g -mn                       ;;
3502             -pds=*)         echo $flag                        ;;
3503             -D*|-I*)        echo $flag                        ;;
3504             --gcc|--abi=*)  echo $flag                        ;;
3505             -me)            echo $flag                        ;;
3506         esac
3507     done
3508 }
3509
3510 probe_cc(){
3511     pfx=$1
3512     _cc=$2
3513
3514     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3515     unset _ld_o _ldflags _ld_lib _ld_path
3516     unset _depflags _DEPCMD _DEPFLAGS
3517     _flags_filter=echo
3518
3519     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3520         true # no-op to avoid reading stdin in following checks
3521     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3522         _type=llvm_gcc
3523         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3524         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3525         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3526         _cflags_speed='-O3'
3527         _cflags_size='-Os'
3528     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3529         _type=gcc
3530         gcc_version=$($_cc --version | head -n1)
3531         gcc_basever=$($_cc -dumpversion)
3532         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3533         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3534         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3535         if ! $_cc -dumpversion | grep -q '^2\.'; then
3536             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3537         fi
3538         _cflags_speed='-O3'
3539         _cflags_size='-Os'
3540     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3541         _type=icc
3542         _ident=$($_cc --version | head -n1)
3543         _depflags='-MMD'
3544         _cflags_speed='-O3'
3545         _cflags_size='-Os'
3546         _cflags_noopt='-O1'
3547         _flags_filter=icc_flags
3548     elif $_cc -v 2>&1 | grep -q xlc; then
3549         _type=xlc
3550         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3551         _cflags_speed='-O5'
3552         _cflags_size='-O5 -qcompact'
3553     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3554         _type=ccc
3555         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3556         _DEPFLAGS='-M'
3557         _cflags_speed='-fast'
3558         _cflags_size='-O1'
3559         _flags_filter=ccc_flags
3560     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3561         test -d "$sysroot" || die "No valid sysroot specified."
3562         _type=armcc
3563         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3564         armcc_conf="$PWD/armcc.conf"
3565         $_cc --arm_linux_configure                 \
3566              --arm_linux_config_file="$armcc_conf" \
3567              --configure_sysroot="$sysroot"        \
3568              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3569              die "Error creating armcc configuration file."
3570         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3571         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3572         as_default="${cross_prefix}gcc"
3573         _depflags='-MMD'
3574         _cflags_speed='-O3'
3575         _cflags_size='-Os'
3576     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3577         _type=tms470
3578         _ident=$($_cc -version | head -n1 | tr -s ' ')
3579         _flags='--gcc --abi=eabi -me'
3580         _cc_e='-ppl -fe=$@'
3581         _cc_o='-fe=$@'
3582         _depflags='-ppa -ppd=$(@:.o=.d)'
3583         _cflags_speed='-O3 -mf=5'
3584         _cflags_size='-O3 -mf=2'
3585         _flags_filter=tms470_flags
3586     elif $_cc -v 2>&1 | grep -q clang; then
3587         _type=clang
3588         _ident=$($_cc --version | head -n1)
3589         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3590         _cflags_speed='-O3'
3591         _cflags_size='-Os'
3592     elif $_cc -V 2>&1 | grep -q Sun; then
3593         _type=suncc
3594         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3595         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3596         _DEPFLAGS='-xM1 -xc99'
3597         _ldflags='-std=c99'
3598         _cflags_speed='-O5'
3599         _cflags_size='-O5 -xspace'
3600         _flags_filter=suncc_flags
3601     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3602         _type=pathscale
3603         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3604         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3605         _cflags_speed='-O2'
3606         _cflags_size='-Os'
3607         _flags_filter='filter_out -Wdisabled-optimization'
3608     elif $_cc -v 2>&1 | grep -q Open64; then
3609         _type=open64
3610         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3611         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3612         _cflags_speed='-O2'
3613         _cflags_size='-Os'
3614         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3615     elif $_cc -V 2>&1 | grep -q Portland; then
3616         _type=pgi
3617         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3618         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3619         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3620         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3621         _cflags_noopt="-O"
3622         _flags_filter=pgi_flags
3623     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3624         _type=armasm
3625         _ident=$($_cc | head -n1)
3626         # 4509: "This form of conditional instruction is deprecated"
3627         _flags="-nologo -ignore 4509"
3628         _flags_filter=armasm_flags
3629     elif $_cc 2>&1 | grep -q Intel; then
3630         _type=icl
3631         _ident=$($_cc 2>&1 | head -n1)
3632         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3633         # Not only is O3 broken on 13.x+ but it is slower on all previous
3634         # versions (tested) as well.
3635         _cflags_speed="-O2"
3636         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3637         if $_cc 2>&1 | grep -q Linker; then
3638             _ld_o='-out:$@'
3639         else
3640             _ld_o='-Fe$@'
3641         fi
3642         _cc_o='-Fo$@'
3643         _cc_e='-P'
3644         _flags_filter=icl_flags
3645         _ld_lib='lib%.a'
3646         _ld_path='-libpath:'
3647         # -Qdiag-error to make icl error when seeing certain unknown arguments
3648         _flags='-nologo -Qdiag-error:4044,10157'
3649         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3650         # with MSVC which enables it by default.
3651         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3652         disable stripping
3653     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3654         _type=msvc
3655         _ident=$($_cc 2>&1 | head -n1)
3656         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3657         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3658         _cflags_speed="-O2"
3659         _cflags_size="-O1"
3660         if $_cc -nologo- 2>&1 | grep -q Linker; then
3661             _ld_o='-out:$@'
3662         else
3663             _ld_o='-Fe$@'
3664         fi
3665         _cc_o='-Fo$@'
3666         _cc_e='-P -Fi$@'
3667         _flags_filter=msvc_flags
3668         _ld_lib='lib%.a'
3669         _ld_path='-libpath:'
3670         _flags='-nologo'
3671         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3672         disable stripping
3673     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3674         _type=cparser
3675         _ident=$($_cc --version | head -n1)
3676         _depflags='-MMD'
3677         _cflags_speed='-O4'
3678         _cflags_size='-O2'
3679         _flags_filter=cparser_flags
3680     fi
3681
3682     eval ${pfx}_type=\$_type
3683     eval ${pfx}_ident=\$_ident
3684 }
3685
3686 set_ccvars(){
3687     eval ${1}_C=\${_cc_c-\${${1}_C}}
3688     eval ${1}_E=\${_cc_e-\${${1}_E}}
3689     eval ${1}_O=\${_cc_o-\${${1}_O}}
3690
3691     if [ -n "$_depflags" ]; then
3692         eval ${1}_DEPFLAGS=\$_depflags
3693     else
3694         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3695         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3696         eval DEP${1}FLAGS=\$_flags
3697     fi
3698 }
3699
3700 probe_cc cc "$cc"
3701 cflags_filter=$_flags_filter
3702 cflags_speed=$_cflags_speed
3703 cflags_size=$_cflags_size
3704 cflags_noopt=$_cflags_noopt
3705 add_cflags $_flags $_cflags
3706 cc_ldflags=$_ldflags
3707 set_ccvars CC
3708
3709 probe_cc hostcc "$host_cc"
3710 host_cflags_filter=$_flags_filter
3711 add_host_cflags  $_flags $_cflags
3712 set_ccvars HOSTCC
3713
3714 test -n "$cc_type" && enable $cc_type ||
3715     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3716
3717 : ${as_default:=$cc}
3718 : ${dep_cc_default:=$cc}
3719 : ${ld_default:=$cc}
3720 : ${host_ld_default:=$host_cc}
3721 set_default ar as dep_cc ld host_ld windres
3722
3723 probe_cc as "$as"
3724 asflags_filter=$_flags_filter
3725 add_asflags $_flags $_cflags
3726 set_ccvars AS
3727
3728 probe_cc ld "$ld"
3729 ldflags_filter=$_flags_filter
3730 add_ldflags $_flags $_ldflags
3731 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3732 LD_O=${_ld_o-$LD_O}
3733 LD_LIB=${_ld_lib-$LD_LIB}
3734 LD_PATH=${_ld_path-$LD_PATH}
3735
3736 probe_cc hostld "$host_ld"
3737 host_ldflags_filter=$_flags_filter
3738 add_host_ldflags $_flags $_ldflags
3739 HOSTLD_O=${_ld_o-$HOSTLD_O}
3740
3741 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3742     probe_cc depcc "$dep_cc"
3743     CCDEP=${_DEPCMD:-$DEPCMD}
3744     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3745     DEPCCFLAGS=$_flags
3746 fi
3747
3748 if $ar 2>&1 | grep -q Microsoft; then
3749     arflags="-nologo"
3750     ar_o='-out:$@'
3751 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3752     arflags="rq"
3753     ar_o='$@'
3754 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3755     arflags='-Xany -r -c'
3756     ar_o='$@'
3757 elif $ar 2>&1 | grep -q "\[D\] "; then
3758     arflags="rcD"
3759     ar_o='$@'
3760 else
3761     arflags="rc"
3762     ar_o='$@'
3763 fi
3764
3765 add_cflags $extra_cflags
3766 add_cxxflags $extra_cxxflags
3767 add_asflags $extra_cflags
3768
3769 if test -n "$sysroot"; then
3770     case "$cc_type" in
3771         gcc|llvm_gcc|clang)
3772             add_cppflags --sysroot="$sysroot"
3773             add_ldflags --sysroot="$sysroot"
3774 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3775             add_cppflags -isysroot "$sysroot"
3776             add_ldflags -isysroot "$sysroot"
3777         ;;
3778         tms470)
3779             add_cppflags -I"$sysinclude"
3780             add_ldflags  --sysroot="$sysroot"
3781         ;;
3782     esac
3783 fi
3784
3785 if test "$cpu" = host; then
3786     enabled cross_compile &&
3787         die "--cpu=host makes no sense when cross-compiling."
3788
3789     case "$cc_type" in
3790         gcc|llvm_gcc)
3791             check_native(){
3792                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3793                 sed -n "/cc1.*$1=/{
3794                             s/.*$1=\\([^ ]*\\).*/\\1/
3795                             p
3796                             q
3797                         }" $TMPE
3798             }
3799             cpu=$(check_native -march || check_native -mcpu)
3800         ;;
3801     esac
3802
3803     test "${cpu:-host}" = host &&
3804         die "--cpu=host not supported with compiler $cc"
3805 fi
3806
3807 # Deal with common $arch aliases
3808 case "$arch" in
3809     aarch64|arm64)
3810         arch="aarch64"
3811     ;;
3812     arm*|iPad*|iPhone*)
3813         arch="arm"
3814     ;;
3815     mips*|IP*)
3816         arch="mips"
3817     ;;
3818     parisc*|hppa*)
3819         arch="parisc"
3820     ;;
3821     "Power Macintosh"|ppc*|powerpc*)
3822         arch="ppc"
3823     ;;
3824     s390|s390x)
3825         arch="s390"
3826     ;;
3827     sh4|sh)
3828         arch="sh4"
3829     ;;
3830     sun4u|sparc*)
3831         arch="sparc"
3832     ;;
3833     tilegx|tile-gx)
3834         arch="tilegx"
3835     ;;
3836     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3837         arch="x86"
3838     ;;
3839 esac
3840
3841 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3842 enable $arch
3843
3844 # Add processor-specific flags
3845 if enabled aarch64; then
3846
3847     case $cpu in
3848         armv*)
3849             cpuflags="-march=$cpu"
3850         ;;
3851         *)
3852             cpuflags="-mcpu=$cpu"
3853         ;;
3854     esac
3855
3856 elif enabled alpha; then
3857
3858     cpuflags="-mcpu=$cpu"
3859
3860 elif enabled arm; then
3861
3862     check_arm_arch() {
3863         check_cpp_condition stddef.h \
3864             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3865             $cpuflags
3866     }
3867
3868     probe_arm_arch() {
3869         if   check_arm_arch 4;        then echo armv4;
3870         elif check_arm_arch 4T;       then echo armv4t;
3871         elif check_arm_arch 5;        then echo armv5;
3872         elif check_arm_arch 5E;       then echo armv5e;
3873         elif check_arm_arch 5T;       then echo armv5t;
3874         elif check_arm_arch 5TE;      then echo armv5te;
3875         elif check_arm_arch 5TEJ;     then echo armv5te;
3876         elif check_arm_arch 6;        then echo armv6;
3877         elif check_arm_arch 6J;       then echo armv6j;
3878         elif check_arm_arch 6K;       then echo armv6k;
3879         elif check_arm_arch 6Z;       then echo armv6z;
3880         elif check_arm_arch 6ZK;      then echo armv6zk;
3881         elif check_arm_arch 6T2;      then echo armv6t2;
3882         elif check_arm_arch 7;        then echo armv7;
3883         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3884         elif check_arm_arch 7S;       then echo armv7-a;
3885         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3886         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3887         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3888         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3889         fi
3890     }
3891
3892     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3893
3894     case $cpu in
3895         armv*)
3896             cpuflags="-march=$cpu"
3897             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3898         ;;
3899         *)
3900             cpuflags="-mcpu=$cpu"
3901             case $cpu in
3902                 cortex-a*)                               subarch=armv7a  ;;
3903                 cortex-r*)                               subarch=armv7r  ;;
3904                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3905                 arm11*)                                  subarch=armv6   ;;
3906                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3907                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3908                 *)                             subarch=$(probe_arm_arch) ;;
3909             esac
3910         ;;
3911     esac
3912
3913     case "$subarch" in
3914         armv5t*)    enable fast_clz                ;;
3915         armv[6-8]*)
3916             enable fast_clz
3917             disabled fast_unaligned || enable fast_unaligned
3918             ;;
3919     esac
3920
3921 elif enabled avr32; then
3922
3923     case $cpu in
3924         ap7[02]0[0-2])
3925             subarch="avr32_ap"
3926             cpuflags="-mpart=$cpu"
3927         ;;
3928         ap)
3929             subarch="avr32_ap"
3930             cpuflags="-march=$cpu"
3931         ;;
3932         uc3[ab]*)
3933             subarch="avr32_uc"
3934             cpuflags="-mcpu=$cpu"
3935         ;;
3936         uc)
3937             subarch="avr32_uc"
3938             cpuflags="-march=$cpu"
3939         ;;
3940     esac
3941
3942 elif enabled bfin; then
3943
3944     cpuflags="-mcpu=$cpu"
3945
3946 elif enabled mips; then
3947
3948     cpuflags="-march=$cpu"
3949
3950     case $cpu in
3951         24kc)
3952             disable mips32r5
3953             disable mips64r6
3954             disable mipsfpu
3955             disable mipsdspr1
3956             disable mipsdspr2
3957             disable msa
3958         ;;
3959         24kf*)
3960             disable mips32r5
3961             disable mips64r6
3962             disable mipsdspr1
3963             disable mipsdspr2
3964             disable msa
3965         ;;
3966         24kec|34kc|1004kc)
3967             disable mips32r5
3968             disable mips64r6
3969             disable mipsfpu
3970             disable mipsdspr2
3971             disable msa
3972         ;;
3973         24kef*|34kf*|1004kf*)
3974             disable mips32r5
3975             disable mips64r6
3976             disable mipsdspr2
3977             disable msa
3978         ;;
3979         74kc)
3980             disable mips32r5
3981             disable mips64r6
3982             disable mipsfpu
3983             disable msa
3984         ;;
3985         74kf)
3986             disable mips32r5
3987             disable mips64r6
3988             disable msa
3989         ;;
3990         p5600)
3991             disable mips64r6
3992             disable mipsdspr1
3993             disable mipsdspr2
3994
3995             check_cflags "-mtune=p5600"
3996         ;;
3997         i6400)
3998             disable mips32r5
3999             disable mipsdspr1
4000             disable mipsdspr2
4001             disable mipsfpu
4002
4003             check_cflags "-mtune=i6400 -mabi=64"
4004             check_ldflags "-mabi=64"
4005         ;;
4006         loongson*)
4007             disable mipsfpu
4008             disable mips32r2
4009             disable mips32r5
4010             disable mips64r6
4011             disable mipsdspr1
4012             disable mipsdspr2
4013             disable msa
4014             enable local_aligned_8 local_aligned_16 local_aligned_32
4015             enable simd_align_16
4016             enable fast_64bit
4017             enable fast_clz
4018             enable fast_cmov
4019             enable fast_unaligned
4020             disable aligned_stack
4021             case $cpu in
4022                 loongson3*)
4023                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4024                 ;;
4025                 loongson2e)
4026                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4027                 ;;
4028                 loongson2f)
4029                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4030                 ;;
4031             esac
4032         ;;
4033         generic)
4034             disable mips32r5
4035             disable mips64r6
4036             disable msa
4037         ;;
4038     esac
4039
4040 elif enabled ppc; then
4041
4042     disable ldbrx
4043
4044     case $(tolower $cpu) in
4045         601|ppc601|powerpc601)
4046             cpuflags="-mcpu=601"
4047             disable altivec
4048         ;;
4049         603*|ppc603*|powerpc603*)
4050             cpuflags="-mcpu=603"
4051             disable altivec
4052         ;;
4053         604*|ppc604*|powerpc604*)
4054             cpuflags="-mcpu=604"
4055             disable altivec
4056         ;;
4057         g3|75*|ppc75*|powerpc75*)
4058             cpuflags="-mcpu=750"
4059             disable altivec
4060         ;;
4061         g4|745*|ppc745*|powerpc745*)
4062             cpuflags="-mcpu=7450"
4063             disable vsx
4064         ;;
4065         74*|ppc74*|powerpc74*)
4066             cpuflags="-mcpu=7400"
4067             disable vsx
4068         ;;
4069         g5|970|ppc970|powerpc970)
4070             cpuflags="-mcpu=970"
4071             disable vsx
4072         ;;
4073         power[3-6]*)
4074             cpuflags="-mcpu=$cpu"
4075             disable vsx
4076         ;;
4077         power[7-8]*)
4078             cpuflags="-mcpu=$cpu"
4079         ;;
4080         cell)
4081             cpuflags="-mcpu=cell"
4082             enable ldbrx
4083             disable vsx
4084         ;;
4085         e500mc)
4086             cpuflags="-mcpu=e500mc"
4087             disable altivec
4088         ;;
4089         e500v2)
4090             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4091             disable altivec
4092             disable dcbzl
4093         ;;
4094         e500)
4095             cpuflags="-mcpu=8540 -mhard-float"
4096             disable altivec
4097             disable dcbzl
4098         ;;
4099     esac
4100
4101 elif enabled sparc; then
4102
4103     case $cpu in
4104         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4105             cpuflags="-mcpu=$cpu"
4106         ;;
4107         ultrasparc*|niagara[234])
4108             cpuflags="-mcpu=$cpu"
4109         ;;
4110     esac
4111
4112 elif enabled x86; then
4113
4114     case $cpu in
4115         i[345]86|pentium)
4116             cpuflags="-march=$cpu"
4117             disable i686
4118             disable mmx
4119         ;;
4120         # targets that do NOT support nopl and conditional mov (cmov)
4121         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4122             cpuflags="-march=$cpu"
4123             disable i686
4124         ;;
4125         # targets that do support nopl and conditional mov (cmov)
4126         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4127         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4128             cpuflags="-march=$cpu"
4129             enable i686
4130             enable fast_cmov
4131         ;;
4132         # targets that do support conditional mov but on which it's slow
4133         pentium4|pentium4m|prescott|nocona)
4134             cpuflags="-march=$cpu"
4135             enable i686
4136             disable fast_cmov
4137         ;;
4138     esac
4139
4140 fi
4141
4142 if [ "$cpu" != generic ]; then
4143     add_cflags  $cpuflags
4144     add_asflags $cpuflags
4145 fi
4146
4147 # compiler sanity check
4148 check_exec <<EOF
4149 int main(void){ return 0; }
4150 EOF
4151 if test "$?" != 0; then
4152     echo "$cc is unable to create an executable file."
4153     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4154         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4155         echo "Only do this if you know what cross compiling means."
4156     fi
4157     die "C compiler test failed."
4158 fi
4159
4160 add_cppflags -D_ISOC99_SOURCE
4161 add_cxxflags -D__STDC_CONSTANT_MACROS
4162 check_cflags -std=c99
4163 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4164 #include <stdlib.h>
4165 EOF
4166 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4167 #include <stdlib.h>
4168 EOF
4169
4170 add_host_cppflags -D_ISOC99_SOURCE
4171 check_host_cflags -std=c99
4172 check_host_cflags -Wall
4173 check_host_cflags -O3
4174
4175 check_64bit(){
4176     arch32=$1
4177     arch64=$2
4178     expr=$3
4179     check_code cc "" "int test[2*($expr) - 1]" &&
4180         subarch=$arch64 || subarch=$arch32
4181 }
4182
4183 case "$arch" in
4184     aarch64|alpha|ia64)
4185         spic=$shared
4186     ;;
4187     mips)
4188         check_64bit mips mips64 '_MIPS_SIM > 1'
4189         spic=$shared
4190     ;;
4191     parisc)
4192         check_64bit parisc parisc64 'sizeof(void *) > 4'
4193         spic=$shared
4194     ;;
4195     ppc)
4196         check_64bit ppc ppc64 'sizeof(void *) > 4'
4197         spic=$shared
4198     ;;
4199     s390)
4200         check_64bit s390 s390x 'sizeof(void *) > 4'
4201         spic=$shared
4202     ;;
4203     sparc)
4204         check_64bit sparc sparc64 'sizeof(void *) > 4'
4205         spic=$shared
4206     ;;
4207     x86)
4208         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4209         # Treat x32 as x64 for now. Note it also needs spic=$shared
4210         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4211             subarch=x86_64
4212         if test "$subarch" = "x86_64"; then
4213             spic=$shared
4214         fi
4215     ;;
4216     ppc)
4217         check_cc <<EOF && subarch="ppc64"
4218         int test[(int)sizeof(char*) - 7];
4219 EOF
4220     ;;
4221 esac
4222
4223 enable $subarch
4224 enabled spic && enable_weak pic
4225
4226 # OS specific
4227 case $target_os in
4228     aix)
4229         SHFLAGS=-shared
4230         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4231         enabled shared && add_ldflags -Wl,-brtl
4232         ;;
4233     android)
4234         disable symver
4235         enable section_data_rel_ro
4236         SLIB_INSTALL_NAME='$(SLIBNAME)'
4237         SLIB_INSTALL_LINKS=
4238         # soname not set on purpose
4239         SHFLAGS=-shared
4240         ;;
4241     haiku)
4242         prefix_default="/boot/common"
4243         network_extralibs="-lnetwork"
4244         host_libs=
4245         ;;
4246     sunos)
4247         SHFLAGS='-shared -Wl,-h,$$(@F)'
4248         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4249         network_extralibs="-lsocket -lnsl"
4250         add_cppflags -D__EXTENSIONS__
4251         # When using suncc to build, the Solaris linker will mark
4252         # an executable with each instruction set encountered by
4253         # the Solaris assembler.  As our libraries contain their own
4254         # guards for processor-specific code, instead suppress
4255         # generation of the HWCAPS ELF section on Solaris x86 only.
4256         enabled_all suncc x86 &&
4257             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4258             add_ldflags -Wl,-M,mapfile
4259         nm_default='nm -P -g'
4260         ;;
4261     netbsd)
4262         disable symver
4263         oss_indev_extralibs="-lossaudio"
4264         oss_outdev_extralibs="-lossaudio"
4265         enabled gcc || check_ldflags -Wl,-zmuldefs
4266         ;;
4267     openbsd|bitrig)
4268         disable symver
4269         SHFLAGS='-shared'
4270         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4271         SLIB_INSTALL_LINKS=
4272         oss_indev_extralibs="-lossaudio"
4273         oss_outdev_extralibs="-lossaudio"
4274         ;;
4275     dragonfly)
4276         disable symver
4277         ;;
4278     freebsd)
4279         ;;
4280     bsd/os)
4281         add_extralibs -lpoll -lgnugetopt
4282         strip="strip -d"
4283         ;;
4284     darwin)
4285         enabled ppc && add_asflags -force_cpusubtype_ALL
4286         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4287         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4288         strip="${strip} -x"
4289         add_ldflags -Wl,-dynamic,-search_paths_first
4290         SLIBSUF=".dylib"
4291         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4292         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4293         objformat="macho"
4294         enabled x86_64 && objformat="macho64"
4295         enabled_any pic shared x86_64 ||
4296             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4297         ;;
4298     mingw32*)
4299         if test $target_os = "mingw32ce"; then
4300             disable network
4301         else
4302             target_os=mingw32
4303         fi
4304         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4305         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4306         LIBTARGET=i386
4307         if enabled x86_64; then
4308             LIBTARGET="i386:x86-64"
4309         elif enabled arm; then
4310             LIBTARGET=arm-wince
4311         fi
4312         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4313         check_ldflags -Wl,--nxcompat
4314         check_ldflags -Wl,--dynamicbase
4315         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4316         shlibdir_default="$bindir_default"
4317         SLIBPREF=""
4318         SLIBSUF=".dll"
4319         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4320         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4321         dlltool="${cross_prefix}dlltool"
4322         if check_cmd lib.exe -list; then
4323             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4324             if enabled x86_64; then
4325                 LIBTARGET=x64
4326             fi
4327         elif check_cmd $dlltool --version; then
4328             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4329         fi
4330         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4331         SLIB_INSTALL_LINKS=
4332         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4333         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4334         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4335         objformat="win32"
4336         ranlib=:
4337         enable dos_paths
4338         ;;
4339     win32|win64)
4340         disable symver
4341         if enabled shared; then
4342             # Link to the import library instead of the normal static library
4343             # for shared libs.
4344             LD_LIB='%.lib'
4345             # Cannot build both shared and static libs with MSVC or icl.
4346             disable static
4347         fi
4348         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4349         shlibdir_default="$bindir_default"
4350         SLIBPREF=""
4351         SLIBSUF=".dll"
4352         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4353         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4354         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4355         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4356         SLIB_INSTALL_LINKS=
4357         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4358         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4359         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4360         objformat="win32"
4361         ranlib=:
4362         enable dos_paths
4363         ;;
4364     cygwin*)
4365         target_os=cygwin
4366         shlibdir_default="$bindir_default"
4367         SLIBPREF="cyg"
4368         SLIBSUF=".dll"
4369         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4370         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4371         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4372         SLIB_INSTALL_LINKS=
4373         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4374         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4375         objformat="win32"
4376         enable dos_paths
4377         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4378         ;;
4379     *-dos|freedos|opendos)
4380         network_extralibs="-lsocket"
4381         objformat="coff"
4382         enable dos_paths
4383         add_cppflags -U__STRICT_ANSI__
4384         ;;
4385     linux)
4386         enable dv1394
4387         enable section_data_rel_ro
4388         ;;
4389     irix*)
4390         target_os=irix
4391         ranlib="echo ignoring ranlib"
4392         ;;
4393     os/2*)
4394         strip="lxlite -CS"
4395         ln_s="cp -f"
4396         objformat="aout"
4397         add_cppflags -D_GNU_SOURCE
4398         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4399         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4400         LIBSUF="_s.a"
4401         SLIBPREF=""
4402         SLIBSUF=".dll"
4403         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4404         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4405         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4406             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4407             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4408             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4409             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4410         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4411             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4412         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4413         enable dos_paths
4414         enable_weak os2threads
4415         ;;
4416     gnu/kfreebsd)
4417         add_cppflags -D_BSD_SOURCE
4418         ;;
4419     gnu)
4420         ;;
4421     qnx)
4422         add_cppflags -D_QNX_SOURCE
4423         network_extralibs="-lsocket"
4424         ;;
4425     symbian)
4426         SLIBSUF=".dll"
4427         enable dos_paths
4428         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4429         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4430         add_ldflags -Wl,--target1-abs,--no-undefined \
4431                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4432                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4433         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4434                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4435                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4436         ;;
4437     osf1)
4438         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4439         ;;
4440     minix)
4441         ;;
4442     plan9)
4443         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4444                      -D_REENTRANT_SOURCE        \
4445                      -D_RESEARCH_SOURCE         \
4446                      -DFD_SETSIZE=96            \
4447                      -DHAVE_SOCK_OPTS
4448         add_compat strtod.o strtod=avpriv_strtod
4449         network_extralibs='-lbsd'
4450         exeobjs=compat/plan9/main.o
4451         disable ffserver
4452         cp_f='cp'
4453         ;;
4454     none)
4455         ;;
4456     *)
4457         die "Unknown OS '$target_os'."
4458         ;;
4459 esac
4460
4461 # determine libc flavour
4462
4463 probe_libc(){
4464     pfx=$1
4465     pfx_no_=${pfx%_}
4466     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4467     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4468         eval ${pfx}libc_type=uclibc
4469         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4470     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4471         eval ${pfx}libc_type=glibc
4472         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4473     # MinGW headers can be installed on Cygwin, so check for newlib first.
4474     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4475         eval ${pfx}libc_type=newlib
4476         add_${pfx}cppflags -U__STRICT_ANSI__
4477     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4478     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4479         eval ${pfx}libc_type=mingw64
4480         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4481             add_compat msvcrt/snprintf.o
4482             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4483         fi
4484         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4485         eval test \$${pfx_no_}cc_type = "gcc" &&
4486             add_${pfx}cppflags -D__printf__=__gnu_printf__
4487     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4488          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4489         eval ${pfx}libc_type=mingw32
4490         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4491             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4492             die "ERROR: MinGW32 runtime version must be >= 3.15."
4493         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4494         eval test \$${pfx_no_}cc_type = "gcc" &&
4495             add_${pfx}cppflags -D__printf__=__gnu_printf__
4496     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4497         eval ${pfx}libc_type=msvcrt
4498         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4499             if [ "$pfx" = host_ ]; then
4500                 add_host_cppflags -Dsnprintf=_snprintf
4501             else
4502                 add_compat strtod.o strtod=avpriv_strtod
4503                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4504                                              _snprintf=avpriv_snprintf  \
4505                                              vsnprintf=avpriv_vsnprintf
4506             fi
4507         fi
4508         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4509         # 0x601 by default unless something else is set by the user.
4510         # This can easily lead to us detecting functions only present
4511         # in such new versions and producing binaries requiring windows 7.0.
4512         # Therefore explicitly set the default to XP unless the user has
4513         # set something else on the command line.
4514         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4515             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4516     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4517         eval ${pfx}libc_type=klibc
4518     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4519         eval ${pfx}libc_type=bionic
4520     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4521         eval ${pfx}libc_type=solaris
4522         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4523     fi
4524     check_${pfx}cc <<EOF
4525 #include <time.h>
4526 void *v = localtime_r;
4527 EOF
4528 test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4529 #include <time.h>
4530 void *v = localtime_r;
4531 EOF
4532
4533 }
4534
4535 probe_libc
4536 test -n "$libc_type" && enable libc_$libc_type
4537 probe_libc host_
4538 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4539
4540 case $libc_type in
4541     bionic)
4542         add_compat strtod.o strtod=avpriv_strtod
4543         ;;
4544 esac
4545
4546 # hacks for compiler/libc/os combinations
4547
4548 if enabled_all tms470 libc_glibc; then
4549     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4550     add_cppflags -D__USER_LABEL_PREFIX__=
4551     add_cppflags -D__builtin_memset=memset
4552     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4553     add_cflags   -pds=48    # incompatible redefinition of macro
4554 fi
4555
4556 if enabled_all ccc libc_glibc; then
4557     add_ldflags -Wl,-z,now  # calls to libots crash without this
4558 fi
4559
4560 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4561     add_cppflags '-I\$(SRC_PATH)/compat/float'
4562
4563 esc(){
4564     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4565 }
4566
4567 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4568
4569 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4570
4571 set_default libdir
4572 : ${shlibdir_default:="$libdir"}
4573 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4574
4575 set_default $PATHS_LIST
4576 set_default nm
4577
4578 # we need to build at least one lib type
4579 if ! enabled_any static shared; then
4580     cat <<EOF
4581 At least one library type must be built.
4582 Specify --enable-static to build the static libraries or --enable-shared to
4583 build the shared libraries as well. To only build the shared libraries specify
4584 --disable-static in addition to --enable-shared.
4585 EOF
4586     exit 1;
4587 fi
4588
4589 die_license_disabled() {
4590     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4591 }
4592
4593 die_license_disabled_gpl() {
4594     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4595 }
4596
4597 die_license_disabled gpl frei0r
4598 die_license_disabled gpl libcdio
4599 die_license_disabled gpl libsmbclient
4600 die_license_disabled gpl libutvideo
4601 die_license_disabled gpl libvidstab
4602 die_license_disabled gpl libx264
4603 die_license_disabled gpl libx265
4604 die_license_disabled gpl libxavs
4605 die_license_disabled gpl libxvid
4606 die_license_disabled gpl libzvbi
4607 die_license_disabled gpl x11grab
4608
4609 die_license_disabled nonfree libaacplus
4610 die_license_disabled nonfree libfaac
4611 die_license_disabled nonfree nvenc
4612 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4613 enabled gpl && die_license_disabled_gpl nonfree openssl
4614
4615 die_license_disabled version3 libopencore_amrnb
4616 die_license_disabled version3 libopencore_amrwb
4617 die_license_disabled version3 libsmbclient
4618 die_license_disabled version3 libvo_aacenc
4619 die_license_disabled version3 libvo_amrwbenc
4620
4621 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4622
4623 disabled optimizations || check_cflags -fomit-frame-pointer
4624
4625 enable_weak_pic() {
4626     disabled pic && return
4627     enable pic
4628     add_cppflags -DPIC
4629     case "$target_os" in
4630     mingw*|cygwin*)
4631         ;;
4632     *)
4633         add_cflags -fPIC
4634         ;;
4635     esac
4636     add_asflags  -fPIC
4637 }
4638
4639 enabled pic && enable_weak_pic
4640
4641 check_cc <<EOF || die "Symbol mangling check failed."
4642 int ff_extern;
4643 EOF
4644 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4645 extern_prefix=${sym%%ff_extern*}
4646
4647 check_cc <<EOF && enable_weak inline_asm
4648 void foo(void) { __asm__ volatile ("" ::); }
4649 EOF
4650
4651 _restrict=
4652 for restrict_keyword in restrict __restrict__ __restrict; do
4653     check_cc <<EOF && _restrict=$restrict_keyword && break
4654 void foo(char * $restrict_keyword p);
4655 EOF
4656 done
4657
4658 check_cc <<EOF && enable pragma_deprecated
4659 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4660 EOF
4661
4662 check_cc <<EOF && enable attribute_packed
4663 struct { int x; } __attribute__((packed)) x;
4664 EOF
4665
4666 check_cc <<EOF && enable attribute_may_alias
4667 union { int x; } __attribute__((may_alias)) x;
4668 EOF
4669
4670 check_cc <<EOF || die "endian test failed"
4671 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4672 EOF
4673 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4674
4675 if ! enabled ppc64 || enabled bigendian; then
4676     disable vsx
4677 fi
4678
4679 check_gas() {
4680     log "check_gas using '$as' as AS"
4681     # :vararg is used on aarch64, arm and ppc altivec
4682     check_as <<EOF || return 1
4683 .macro m n, y:vararg=0
4684 \n: .int \y
4685 .endm
4686 m x
4687 EOF
4688     # .altmacro is only used in arm asm
4689     ! enabled arm || check_as <<EOF || return 1
4690 .altmacro
4691 EOF
4692     enable gnu_as
4693     return 0
4694 }
4695
4696 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4697     nogas=:
4698     enabled_any arm aarch64 && nogas=die
4699     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4700     as_noop=-v
4701
4702     case $as_type in
4703         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4704         gcc)  gaspp_as_type=gas ;;
4705         *)    gaspp_as_type=$as_type ;;
4706     esac
4707
4708     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4709
4710     test "${as#*gas-preprocessor.pl}" != "$as" ||
4711     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4712         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4713
4714     if ! check_gas ; then
4715         as=${gas:=$as}
4716         check_gas || \
4717             $nogas "GNU assembler not found, install/update gas-preprocessor"
4718     fi
4719
4720     check_as <<EOF && enable as_func
4721 .func test
4722 .endfunc
4723 EOF
4724 fi
4725
4726 check_inline_asm inline_asm_labels '"1:\n"'
4727
4728 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4729
4730 if enabled aarch64; then
4731     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4732     # internal assembler in clang 3.3 does not support this instruction
4733     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4734     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4735
4736     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4737
4738 elif enabled alpha; then
4739
4740     check_cflags -mieee
4741
4742 elif enabled arm; then
4743
4744     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4745 float func(float a, float b){ return a+b; }
4746 EOF
4747
4748     enabled thumb && check_cflags -mthumb || check_cflags -marm
4749
4750     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4751         enable vfp_args
4752     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4753         case "${cross_prefix:-$cc}" in
4754             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4755             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4756 __asm__ (".eabi_attribute 28, 1");
4757 int main(void) { return 0; }
4758 EOF
4759         esac
4760         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4761     fi
4762
4763     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4764     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4765     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4766     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4767     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4768     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4769     enabled setend  && check_insn setend  'setend be'
4770
4771     [ $target_os = linux ] || [ $target_os = android ] ||
4772         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4773             $ARCH_EXT_LIST_ARM
4774
4775     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4776
4777     check_as <<EOF && enable as_dn_directive
4778 ra .dn d0.i16
4779 .unreq ra
4780 EOF
4781
4782     # llvm's integrated assembler supports .object_arch from llvm 3.5
4783     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4784 .object_arch armv4
4785 EOF
4786
4787     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4788
4789 elif enabled mips; then
4790
4791     enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
4792     enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
4793     enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
4794
4795     # Enable minimum ISA based on selected options
4796     if enabled mips64 && (enabled mipsdspr1 || enabled mipsdspr2); then
4797         add_cflags "-mips64r2"
4798         add_asflags "-mips64r2"
4799     elif enabled mips64 && enabled mipsfpu && disabled loongson2 && disabled loongson3; then
4800         add_cflags "-mips64"
4801         add_asflags "-mips64"
4802     elif enabled mipsdspr1 || enabled mipsdspr2; then
4803         add_cflags "-mips32r2 -mfp32"
4804         add_asflags "-mips32r2 -mfp32"
4805     elif enabled mips32r5 || enabled mips64r6; then
4806         check_cflags "-mfp64"
4807         check_ldflags "-mfp64"
4808     fi
4809
4810     enabled mips32r5  && check_cflags "-mips32r5 -msched-weight -mload-store-pairs -funroll-loops" &&
4811      check_ldflags "-mips32r5" &&
4812      check_inline_asm mips32r5  '"ulw $t0, ($t1)"'
4813     enabled mips64r6  && check_cflags "-mips64r6 -msched-weight -mload-store-pairs -funroll-loops" &&
4814      check_ldflags "-mips64r6" &&
4815      check_inline_asm mips64r6  '"aui $t0, $t1, 1"'
4816     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4817      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4818     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4819      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4820     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4821      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4822     enabled msa       && check_cflags "-mmsa" && check_ldflags "-mmsa" &&
4823      check_inline_asm msa       '"addvi.b $w0, $w1, 1"'
4824
4825     enabled mips32r5 && add_asflags "-mips32r5 -mfp64"
4826     enabled mips64r6 && add_asflags "-mips64r6 -mfp64"
4827     enabled msa && add_asflags "-mmsa"
4828
4829 elif enabled parisc; then
4830
4831     if enabled gcc; then
4832         case $($cc -dumpversion) in
4833             4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4834         esac
4835     fi
4836
4837 elif enabled ppc; then
4838
4839     enable local_aligned_8 local_aligned_16 local_aligned_32
4840
4841     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4842     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4843     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4844     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4845
4846     # AltiVec flags: The FSF version of GCC differs from the Apple version
4847     if enabled altivec; then
4848         check_cflags -maltivec -mabi=altivec &&
4849         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4850         check_cflags -faltivec
4851
4852         # check if our compiler supports Motorola AltiVec C API
4853         check_cc <<EOF || disable altivec
4854 $inc_altivec_h
4855 int main(void) {