configure&avdevice/jack: Fixed issue #43 JACK indev support on OSX
[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-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Hardware accelerators:
152   --disable-d3d11va        disable D3D11VA code [autodetect]
153   --disable-dxva2          disable DXVA2 code [autodetect]
154   --disable-vaapi          disable VAAPI code [autodetect]
155   --disable-vda            disable VDA code [autodetect]
156   --disable-vdpau          disable VDPAU code [autodetect]
157   --enable-videotoolbox    enable VideoToolbox 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-chromaprint     enable audio fingerprinting with chromaprint [no]
200   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
201   --enable-frei0r          enable frei0r video filtering [no]
202   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
203                            if openssl, librtmp or gmp is not used [no]
204   --enable-gmp             enable gmp, needed for rtmp(t)e support
205                            if openssl or librtmp is not used [no]
206   --enable-gnutls          enable gnutls, needed for https support
207                            if openssl is not used [no]
208   --disable-iconv          disable iconv [autodetect]
209   --enable-ladspa          enable LADSPA audio filtering [no]
210   --enable-libass          enable libass subtitles rendering,
211                            needed for subtitles and ass filter [no]
212   --enable-libbluray       enable BluRay reading using libbluray [no]
213   --enable-libbs2b         enable bs2b DSP library [no]
214   --enable-libcaca         enable textual display using libcaca [no]
215   --enable-libcelt         enable CELT decoding via libcelt [no]
216   --enable-libcdio         enable audio CD grabbing with libcdio [no]
217   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
218                            and libraw1394 [no]
219   --enable-libdcadec       enable DCA decoding via libdcadec [no]
220   --enable-libfaac         enable AAC encoding via libfaac [no]
221   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
222   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
223   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
224   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
225   --enable-libgme          enable Game Music Emu via libgme [no]
226   --enable-libgsm          enable GSM de/encoding via libgsm [no]
227   --enable-libiec61883     enable iec61883 via libiec61883 [no]
228   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
229   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
230   --enable-libmfx          enable HW acceleration through libmfx
231   --enable-libmodplug      enable ModPlug via libmodplug [no]
232   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
233   --enable-libnut          enable NUT (de)muxing via libnut,
234                            native (de)muxer exists [no]
235   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
236   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
237   --enable-libopencv       enable video filtering via libopencv [no]
238   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
239   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
240   --enable-libopus         enable Opus de/encoding via libopus [no]
241   --enable-libpulse        enable Pulseaudio input via libpulse [no]
242   --enable-librubberband   enable rubberband needed for rubberband filter [no]
243   --enable-librtmp         enable RTMP[E] support via librtmp [no]
244   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
245   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
246   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
247   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
248   --enable-libsoxr         enable Include libsoxr resampling [no]
249   --enable-libspeex        enable Speex de/encoding via libspeex [no]
250   --enable-libssh          enable SFTP protocol via libssh [no]
251   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
252   --enable-libtheora       enable Theora encoding via libtheora [no]
253   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
254   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
255   --enable-libv4l2         enable libv4l2/v4l-utils [no]
256   --enable-libvidstab      enable video stabilization using vid.stab [no]
257   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
258   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
259                            native implementation exists [no]
260   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
261   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
262   --enable-libwebp         enable WebP encoding via libwebp [no]
263   --enable-libx264         enable H.264 encoding via x264 [no]
264   --enable-libx265         enable HEVC encoding via x265 [no]
265   --enable-libxavs         enable AVS encoding via xavs [no]
266   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
267   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
268   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
269   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
270   --enable-libxvid         enable Xvid encoding via xvidcore,
271                            native MPEG-4/Xvid encoder exists [no]
272   --enable-libzimg         enable z.lib, needed for zscale filter [no]
273   --enable-libzmq          enable message passing via libzmq [no]
274   --enable-libzvbi         enable teletext support via libzvbi [no]
275   --disable-lzma           disable lzma [autodetect]
276   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
277   --enable-mmal            enable decoding via MMAL [no]
278   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
279   --enable-nvenc           enable NVIDIA NVENC support [no]
280   --enable-openal          enable OpenAL 1.1 capture support [no]
281   --enable-opencl          enable OpenCL code
282   --enable-opengl          enable OpenGL rendering [no]
283   --enable-openssl         enable openssl, needed for https support
284                            if gnutls is not used [no]
285   --disable-schannel       disable SChannel SSP, needed for TLS support on
286                            Windows if openssl and gnutls are not used [autodetect]
287   --disable-sdl            disable sdl [autodetect]
288   --disable-securetransport disable Secure Transport, needed for TLS support
289                            on OSX if openssl and gnutls are not used [autodetect]
290   --enable-x11grab         enable X11 grabbing (legacy) [no]
291   --disable-xlib           disable xlib [autodetect]
292   --disable-zlib           disable zlib [autodetect]
293
294 Toolchain options:
295   --arch=ARCH              select architecture [$arch]
296   --cpu=CPU                select the minimum required CPU (affects
297                            instruction selection, may crash on older CPUs)
298   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
299   --progs-suffix=SUFFIX    program name suffix []
300   --enable-cross-compile   assume a cross-compiler is used
301   --sysroot=PATH           root of cross-build tree
302   --sysinclude=PATH        location of cross-build system headers
303   --target-os=OS           compiler targets OS [$target_os]
304   --target-exec=CMD        command to run executables on target
305   --target-path=DIR        path to view of build directory on target
306   --target-samples=DIR     path to samples directory on target
307   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
308   --toolchain=NAME         set tool defaults according to NAME
309   --nm=NM                  use nm tool NM [$nm_default]
310   --ar=AR                  use archive tool AR [$ar_default]
311   --as=AS                  use assembler AS [$as_default]
312   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
313   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
314   --cc=CC                  use C compiler CC [$cc_default]
315   --cxx=CXX                use C compiler CXX [$cxx_default]
316   --objcc=OCC              use ObjC compiler OCC [$cc_default]
317   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
318   --ld=LD                  use linker LD [$ld_default]
319   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
320   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
321   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
322   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
323   --host-cc=HOSTCC         use host C compiler HOSTCC
324   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
325   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
326   --host-ld=HOSTLD         use host linker HOSTLD
327   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
328   --host-libs=HLIBS        use libs HLIBS when linking for host
329   --host-os=OS             compiler host OS [$target_os]
330   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
331   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
332   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
333   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
334   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
335   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
336   --extra-libs=ELIBS       add ELIBS [$ELIBS]
337   --extra-version=STRING   version string suffix []
338   --optflags=OPTFLAGS      override optimization-related compiler flags
339   --build-suffix=SUFFIX    library name suffix []
340   --enable-pic             build position-independent code
341   --enable-thumb           compile for Thumb instruction set
342   --enable-lto             use link-time optimization
343   --env="ENV=override"     override the environment variables
344
345 Advanced options (experts only):
346   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
347   --custom-allocator=NAME  use a supported custom allocator
348   --disable-symver         disable symbol versioning
349   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
350   --disable-safe-bitstream-reader
351                            disable buffer boundary checking in bitreaders
352                            (faster, but may crash)
353   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
354   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
355
356 Optimization options (experts only):
357   --disable-asm            disable all assembly optimizations
358   --disable-altivec        disable AltiVec optimizations
359   --disable-vsx            disable VSX optimizations
360   --disable-power8         disable POWER8 optimizations
361   --disable-amd3dnow       disable 3DNow! optimizations
362   --disable-amd3dnowext    disable 3DNow! extended optimizations
363   --disable-mmx            disable MMX optimizations
364   --disable-mmxext         disable MMXEXT optimizations
365   --disable-sse            disable SSE optimizations
366   --disable-sse2           disable SSE2 optimizations
367   --disable-sse3           disable SSE3 optimizations
368   --disable-ssse3          disable SSSE3 optimizations
369   --disable-sse4           disable SSE4 optimizations
370   --disable-sse42          disable SSE4.2 optimizations
371   --disable-avx            disable AVX optimizations
372   --disable-xop            disable XOP optimizations
373   --disable-fma3           disable FMA3 optimizations
374   --disable-fma4           disable FMA4 optimizations
375   --disable-avx2           disable AVX2 optimizations
376   --disable-aesni          disable AESNI optimizations
377   --disable-armv5te        disable armv5te optimizations
378   --disable-armv6          disable armv6 optimizations
379   --disable-armv6t2        disable armv6t2 optimizations
380   --disable-vfp            disable VFP optimizations
381   --disable-neon           disable NEON optimizations
382   --disable-inline-asm     disable use of inline assembly
383   --disable-yasm           disable use of nasm/yasm assembly
384   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
385   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
386   --disable-msa            disable MSA optimizations
387   --disable-mipsfpu        disable floating point MIPS optimizations
388   --disable-mmi            disable Loongson SIMD optimizations
389   --disable-fast-unaligned consider unaligned accesses slow
390
391 Developer options (useful when working on FFmpeg itself):
392   --disable-debug          disable debugging symbols
393   --enable-debug=LEVEL     set the debug level [$debuglevel]
394   --disable-optimizations  disable compiler optimizations
395   --enable-extra-warnings  enable more compiler warnings
396   --disable-stripping      disable stripping of executables and shared libraries
397   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
398                            2 causes a slowdown at runtime.
399   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
400   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
401                            leaks and errors, using the specified valgrind binary.
402                            Cannot be combined with --target-exec
403   --enable-ftrapv          Trap arithmetic overflows
404   --samples=PATH           location of test samples for FATE, if not set use
405                            \$FATE_SAMPLES at make invocation time.
406   --enable-neon-clobber-test check NEON registers for clobbering (should be
407                            used only for debugging purposes)
408   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
409                            should be used only for debugging purposes)
410   --enable-random          randomly enable/disable components
411   --disable-random
412   --enable-random=LIST     randomly enable/disable specific components or
413   --disable-random=LIST    component groups. LIST is a comma-separated list
414                            of NAME[:PROB] entries where NAME is a component
415                            (group) and PROB the probability associated with
416                            NAME (default 0.5).
417   --random-seed=VALUE      seed value for --enable/disable-random
418   --disable-valgrind-backtrace do not print a backtrace under Valgrind
419                            (only applies to --disable-optimizations builds)
420
421 NOTE: Object files are built at the place where configure is launched.
422 EOF
423   exit 0
424 }
425
426 quotes='""'
427 if test -t 1 && which tput >/dev/null 2>&1; then
428     ncolors=$(tput colors)
429     if test -n "$ncolors" && test $ncolors -ge 8; then
430         bold_color=$(tput bold)
431         warn_color=$(tput setaf 3)
432         error_color=$(tput setaf 1)
433         reset_color=$(tput sgr0)
434     fi
435     # 72 used instead of 80 since that's the default of pr
436     ncols=$(tput cols)
437 fi
438 : ${ncols:=72}
439
440 log(){
441     echo "$@" >> $logfile
442 }
443
444 log_file(){
445     log BEGIN $1
446     pr -n -t $1 >> $logfile
447     log END $1
448 }
449
450 warn(){
451     log "WARNING: $*"
452     WARNINGS="${WARNINGS}WARNING: $*\n"
453 }
454
455 die(){
456     log "$@"
457     echo "$error_color$bold_color$@$reset_color"
458     cat <<EOF
459
460 If you think configure made a mistake, make sure you are using the latest
461 version from Git.  If the latest version fails, report the problem to the
462 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
463 EOF
464     if disabled logging; then
465         cat <<EOF
466 Rerun configure with logging enabled (do not use --disable-logging), and
467 include the log this produces with your report.
468 EOF
469     else
470         cat <<EOF
471 Include the log file "$logfile" produced by configure as this will help
472 solve the problem.
473 EOF
474     fi
475     exit 1
476 }
477
478 # Avoid locale weirdness, besides we really just want to translate ASCII.
479 toupper(){
480     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
481 }
482
483 tolower(){
484     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
485 }
486
487 c_escape(){
488     echo "$*" | sed 's/["\\]/\\\0/g'
489 }
490
491 sh_quote(){
492     v=$(echo "$1" | sed "s/'/'\\\\''/g")
493     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
494     echo "$v"
495 }
496
497 cleanws(){
498     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
499 }
500
501 filter(){
502     pat=$1
503     shift
504     for v; do
505         eval "case $v in $pat) echo $v ;; esac"
506     done
507 }
508
509 filter_out(){
510     pat=$1
511     shift
512     for v; do
513         eval "case $v in $pat) ;; *) echo $v ;; esac"
514     done
515 }
516
517 map(){
518     m=$1
519     shift
520     for v; do eval $m; done
521 }
522
523 add_suffix(){
524     suffix=$1
525     shift
526     for v; do echo ${v}${suffix}; done
527 }
528
529 set_all(){
530     value=$1
531     shift
532     for var in $*; do
533         eval $var=$value
534     done
535 }
536
537 set_weak(){
538     value=$1
539     shift
540     for var; do
541         eval : \${$var:=$value}
542     done
543 }
544
545 sanitize_var_name(){
546     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
547 }
548
549 set_safe(){
550     var=$1
551     shift
552     eval $(sanitize_var_name "$var")='$*'
553 }
554
555 get_safe(){
556     eval echo \$$(sanitize_var_name "$1")
557 }
558
559 pushvar(){
560     for pvar in $*; do
561         eval level=\${${pvar}_level:=0}
562         eval ${pvar}_${level}="\$$pvar"
563         eval ${pvar}_level=$(($level+1))
564     done
565 }
566
567 popvar(){
568     for pvar in $*; do
569         eval level=\${${pvar}_level:-0}
570         test $level = 0 && continue
571         eval level=$(($level-1))
572         eval $pvar="\${${pvar}_${level}}"
573         eval ${pvar}_level=$level
574         eval unset ${pvar}_${level}
575     done
576 }
577
578 enable(){
579     set_all yes $*
580 }
581
582 disable(){
583     set_all no $*
584 }
585
586 enable_weak(){
587     set_weak yes $*
588 }
589
590 disable_weak(){
591     set_weak no $*
592 }
593
594 enable_safe(){
595     for var; do
596         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
597     done
598 }
599
600 disable_safe(){
601     for var; do
602         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
603     done
604 }
605
606 do_enable_deep(){
607     for var; do
608         enabled $var && continue
609         eval sel="\$${var}_select"
610         eval sgs="\$${var}_suggest"
611         pushvar var sgs
612         enable_deep $sel
613         popvar sgs
614         enable_deep_weak $sgs
615         popvar var
616     done
617 }
618
619 enable_deep(){
620     do_enable_deep $*
621     enable $*
622 }
623
624 enable_deep_weak(){
625     for var; do
626         disabled $var && continue
627         pushvar var
628         do_enable_deep $var
629         popvar var
630         enable_weak $var
631     done
632 }
633
634 enabled(){
635     test "${1#!}" = "$1" && op='=' || op=!=
636     eval test "x\$${1#!}" $op "xyes"
637 }
638
639 disabled(){
640     test "${1#!}" = "$1" && op='=' || op=!=
641     eval test "x\$${1#!}" $op "xno"
642 }
643
644 enabled_all(){
645     for opt; do
646         enabled $opt || return 1
647     done
648 }
649
650 disabled_all(){
651     for opt; do
652         disabled $opt || return 1
653     done
654 }
655
656 enabled_any(){
657     for opt; do
658         enabled $opt && return 0
659     done
660 }
661
662 disabled_any(){
663     for opt; do
664         disabled $opt && return 0
665     done
666     return 1
667 }
668
669 set_default(){
670     for opt; do
671         eval : \${$opt:=\$${opt}_default}
672     done
673 }
674
675 is_in(){
676     value=$1
677     shift
678     for var in $*; do
679         [ $var = $value ] && return 0
680     done
681     return 1
682 }
683
684 do_check_deps(){
685     for cfg; do
686         cfg="${cfg#!}"
687         enabled ${cfg}_checking && die "Circular dependency for $cfg."
688         disabled ${cfg}_checking && continue
689         enable ${cfg}_checking
690         append allopts $cfg
691
692         eval dep_all="\$${cfg}_deps"
693         eval dep_any="\$${cfg}_deps_any"
694         eval dep_sel="\$${cfg}_select"
695         eval dep_sgs="\$${cfg}_suggest"
696         eval dep_ifa="\$${cfg}_if"
697         eval dep_ifn="\$${cfg}_if_any"
698
699         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
700         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
701         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
702
703         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
704         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
705         enabled_all  $dep_all || disable $cfg
706         enabled_any  $dep_any || disable $cfg
707         disabled_any $dep_sel && disable $cfg
708
709         if enabled $cfg; then
710             enable_deep $dep_sel
711             enable_deep_weak $dep_sgs
712         fi
713
714         disable ${cfg}_checking
715     done
716 }
717
718 check_deps(){
719     unset allopts
720
721     do_check_deps "$@"
722
723     for cfg in $allopts; do
724         enabled $cfg || continue
725         eval dep_extralibs="\$${cfg}_extralibs"
726         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
727     done
728 }
729
730 print_config(){
731     pfx=$1
732     files=$2
733     shift 2
734     map 'eval echo "$v \${$v:-no}"' "$@" |
735     awk "BEGIN { split(\"$files\", files) }
736         {
737             c = \"$pfx\" toupper(\$1);
738             v = \$2;
739             sub(/yes/, 1, v);
740             sub(/no/,  0, v);
741             for (f in files) {
742                 file = files[f];
743                 if (file ~ /\\.h\$/) {
744                     printf(\"#define %s %d\\n\", c, v) >>file;
745                 } else if (file ~ /\\.asm\$/) {
746                     printf(\"%%define %s %d\\n\", c, v) >>file;
747                 } else if (file ~ /\\.mak\$/) {
748                     n = -v ? \"\" : \"!\";
749                     printf(\"%s%s=yes\\n\", n, c) >>file;
750                 } else if (file ~ /\\.texi\$/) {
751                     pre = -v ? \"\" : \"@c \";
752                     yesno = \$2;
753                     c2 = tolower(c);
754                     gsub(/_/, \"-\", c2);
755                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
756                 }
757             }
758         }"
759 }
760
761 print_enabled(){
762     suf=$1
763     shift
764     for v; do
765         enabled $v && printf "%s\n" ${v%$suf};
766     done
767 }
768
769 append(){
770     var=$1
771     shift
772     eval "$var=\"\$$var $*\""
773 }
774
775 prepend(){
776     var=$1
777     shift
778     eval "$var=\"$* \$$var\""
779 }
780
781 unique(){
782     var=$1
783     uniq_list=""
784     for tok in $(eval echo \$$var); do
785         uniq_list="$(filter_out $tok $uniq_list) $tok"
786     done
787     eval "$var=\"${uniq_list}\""
788 }
789
790 add_cppflags(){
791     append CPPFLAGS "$@"
792 }
793
794 add_cflags(){
795     append CFLAGS $($cflags_filter "$@")
796 }
797
798 add_cxxflags(){
799     append CXXFLAGS $($cflags_filter "$@")
800 }
801
802 add_asflags(){
803     append ASFLAGS $($asflags_filter "$@")
804 }
805
806 add_objcflags(){
807     append OBJCFLAGS $($objcflags_filter "$@")
808 }
809
810 add_ldflags(){
811     append LDFLAGS $($ldflags_filter "$@")
812 }
813
814 add_ldexeflags(){
815     append LDEXEFLAGS $($ldflags_filter "$@")
816 }
817
818 add_ldlibflags(){
819     append LDLIBFLAGS $($ldflags_filter "$@")
820 }
821
822 add_stripflags(){
823     append ASMSTRIPFLAGS "$@"
824 }
825
826 add_extralibs(){
827     prepend extralibs $($ldflags_filter "$@")
828 }
829
830 add_host_cppflags(){
831     append host_cppflags "$@"
832 }
833
834 add_host_cflags(){
835     append host_cflags $($host_cflags_filter "$@")
836 }
837
838 add_host_ldflags(){
839     append host_ldflags $($host_ldflags_filter "$@")
840 }
841
842 add_compat(){
843     append compat_objs $1
844     shift
845     map 'add_cppflags -D$v' "$@"
846 }
847
848 check_cmd(){
849     log "$@"
850     "$@" >> $logfile 2>&1
851 }
852
853 check_stat(){
854     log check_stat "$@"
855     stat "$1" >> $logfile 2>&1
856 }
857
858 cc_o(){
859     eval printf '%s\\n' $CC_O
860 }
861
862 cc_e(){
863     eval printf '%s\\n' $CC_E
864 }
865
866 check_cc(){
867     log check_cc "$@"
868     cat > $TMPC
869     log_file $TMPC
870     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
871 }
872
873 check_cxx(){
874     log check_cxx "$@"
875     cat > $TMPCPP
876     log_file $TMPCPP
877     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
878 }
879
880 check_objcc(){
881     log check_objcc "$@"
882     cat > $TMPM
883     log_file $TMPM
884     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
885 }
886
887 check_cpp(){
888     log check_cpp "$@"
889     cat > $TMPC
890     log_file $TMPC
891     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
892 }
893
894 as_o(){
895     eval printf '%s\\n' $AS_O
896 }
897
898 check_as(){
899     log check_as "$@"
900     cat > $TMPS
901     log_file $TMPS
902     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
903 }
904
905 check_inline_asm(){
906     log check_inline_asm "$@"
907     name="$1"
908     code="$2"
909     shift 2
910     disable $name
911     check_cc "$@" <<EOF && enable $name
912 void foo(void){ __asm__ volatile($code); }
913 EOF
914 }
915
916 check_insn(){
917     log check_insn "$@"
918     check_inline_asm ${1}_inline "\"$2\""
919     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
920 }
921
922 check_yasm(){
923     log check_yasm "$@"
924     echo "$1" > $TMPS
925     log_file $TMPS
926     shift 1
927     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
928 }
929
930 ld_o(){
931     eval printf '%s\\n' $LD_O
932 }
933
934 check_ld(){
935     log check_ld "$@"
936     type=$1
937     shift 1
938     flags=$(filter_out '-l*|*.so' $@)
939     libs=$(filter '-l*|*.so' $@)
940     check_$type $($cflags_filter $flags) || return
941     flags=$($ldflags_filter $flags)
942     libs=$($ldflags_filter $libs)
943     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
944 }
945
946 print_include(){
947     hdr=$1
948     test "${hdr%.h}" = "${hdr}" &&
949         echo "#include $hdr"    ||
950         echo "#include <$hdr>"
951 }
952
953 check_code(){
954     log check_code "$@"
955     check=$1
956     headers=$2
957     code=$3
958     shift 3
959     {
960         for hdr in $headers; do
961             print_include $hdr
962         done
963         echo "int main(void) { $code; return 0; }"
964     } | check_$check "$@"
965 }
966
967 check_cppflags(){
968     log check_cppflags "$@"
969     check_cc "$@" <<EOF && append CPPFLAGS "$@"
970 int x;
971 EOF
972 }
973
974 test_cflags(){
975     log test_cflags "$@"
976     set -- $($cflags_filter "$@")
977     check_cc "$@" <<EOF
978 int x;
979 EOF
980 }
981
982 check_cflags(){
983     log check_cflags "$@"
984     test_cflags "$@" && add_cflags "$@"
985 }
986
987 check_cxxflags(){
988     log check_cxxflags "$@"
989     set -- $($cflags_filter "$@")
990     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
991 int x;
992 EOF
993 }
994
995 test_objcflags(){
996     log test_cflags "$@"
997     set -- $($cflags_filter "$@")
998     check_objcc "$@" <<EOF
999 int x;
1000 EOF
1001 }
1002
1003 check_objcflags(){
1004     log check_cflags "$@"
1005     test_objcflags "$@" && add_objcflags "$@"
1006 }
1007
1008 test_ldflags(){
1009     log test_ldflags "$@"
1010     check_ld "cc" "$@" <<EOF
1011 int main(void){ return 0; }
1012 EOF
1013 }
1014
1015 check_ldflags(){
1016     log check_ldflags "$@"
1017     test_ldflags "$@" && add_ldflags "$@"
1018 }
1019
1020 test_stripflags(){
1021     log test_stripflags "$@"
1022     # call check_cc to get a fresh TMPO
1023     check_cc <<EOF
1024 int main(void) { return 0; }
1025 EOF
1026     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1027 }
1028
1029 check_stripflags(){
1030     log check_stripflags "$@"
1031     test_stripflags "$@" && add_stripflags "$@"
1032 }
1033
1034 check_header(){
1035     log check_header "$@"
1036     header=$1
1037     shift
1038     disable_safe $header
1039     check_cpp "$@" <<EOF && enable_safe $header
1040 #include <$header>
1041 int x;
1042 EOF
1043 }
1044
1045 check_header_objcc(){
1046     log check_header_objcc "$@"
1047     rm -f -- "$TMPO"
1048     header=$1
1049     shift
1050     disable_safe $header
1051     {
1052        echo "#include <$header>"
1053        echo "int main(void) { return 0; }"
1054     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1055 }
1056
1057 check_func(){
1058     log check_func "$@"
1059     func=$1
1060     shift
1061     disable $func
1062     check_ld "cc" "$@" <<EOF && enable $func
1063 extern int $func();
1064 int main(void){ $func(); }
1065 EOF
1066 }
1067
1068 check_complexfunc(){
1069     log check_complexfunc "$@"
1070     func=$1
1071     narg=$2
1072     shift 2
1073     test $narg = 2 && args="f, g" || args="f * I"
1074     disable $func
1075     check_ld "cc" "$@" <<EOF && enable $func
1076 #include <complex.h>
1077 #include <math.h>
1078 float foo(complex float f, complex float g) { return $func($args); }
1079 int main(void){ return (int) foo; }
1080 EOF
1081 }
1082
1083 check_mathfunc(){
1084     log check_mathfunc "$@"
1085     func=$1
1086     narg=$2
1087     shift 2
1088     test $narg = 2 && args="f, g" || args="f"
1089     disable $func
1090     check_ld "cc" "$@" <<EOF && enable $func
1091 #include <math.h>
1092 float foo(float f, float g) { return $func($args); }
1093 int main(void){ return (int) foo; }
1094 EOF
1095 }
1096
1097 check_func_headers(){
1098     log check_func_headers "$@"
1099     headers=$1
1100     funcs=$2
1101     shift 2
1102     {
1103         for hdr in $headers; do
1104             print_include $hdr
1105         done
1106         for func in $funcs; do
1107             echo "long check_$func(void) { return (long) $func; }"
1108         done
1109         echo "int main(void) { return 0; }"
1110     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1111 }
1112
1113 check_class_headers_cpp(){
1114     log check_class_headers_cpp "$@"
1115     headers=$1
1116     classes=$2
1117     shift 2
1118     {
1119         for hdr in $headers; do
1120             echo "#include <$hdr>"
1121         done
1122         echo "int main(void) { "
1123         i=1
1124         for class in $classes; do
1125             echo "$class obj$i;"
1126             i=$(expr $i + 1)
1127         done
1128         echo "return 0; }"
1129     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1130 }
1131
1132 check_cpp_condition(){
1133     log check_cpp_condition "$@"
1134     header=$1
1135     condition=$2
1136     shift 2
1137     check_cpp "$@" <<EOF
1138 #include <$header>
1139 #if !($condition)
1140 #error "unsatisfied condition: $condition"
1141 #endif
1142 EOF
1143 }
1144
1145 check_lib(){
1146     log check_lib "$@"
1147     header="$1"
1148     func="$2"
1149     shift 2
1150     check_header $header && check_func $func "$@" && add_extralibs "$@"
1151 }
1152
1153 check_lib2(){
1154     log check_lib2 "$@"
1155     headers="$1"
1156     funcs="$2"
1157     shift 2
1158     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1159 }
1160
1161 check_lib_cpp(){
1162     log check_lib_cpp "$@"
1163     headers="$1"
1164     classes="$2"
1165     shift 2
1166     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1167 }
1168
1169 check_pkg_config(){
1170     log check_pkg_config "$@"
1171     pkgandversion="$1"
1172     pkg="${1%% *}"
1173     headers="$2"
1174     funcs="$3"
1175     shift 3
1176     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1177     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1178     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1179     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1180         set_safe "${pkg}_cflags" $pkg_cflags   &&
1181         set_safe "${pkg}_libs"   $pkg_libs
1182 }
1183
1184 check_exec(){
1185     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1186 }
1187
1188 check_exec_crash(){
1189     code=$(cat)
1190
1191     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1192     # are safe but may not be available everywhere.  Thus we use
1193     # raise(SIGTERM) instead.  The check is run in a subshell so we
1194     # can redirect the "Terminated" message from the shell.  SIGBUS
1195     # is not defined by standard C so it is used conditionally.
1196
1197     (check_exec "$@") >> $logfile 2>&1 <<EOF
1198 #include <signal.h>
1199 static void sighandler(int sig){
1200     raise(SIGTERM);
1201 }
1202 int foo(void){
1203     $code
1204 }
1205 int (*func_ptr)(void) = foo;
1206 int main(void){
1207     signal(SIGILL, sighandler);
1208     signal(SIGFPE, sighandler);
1209     signal(SIGSEGV, sighandler);
1210 #ifdef SIGBUS
1211     signal(SIGBUS, sighandler);
1212 #endif
1213     return func_ptr();
1214 }
1215 EOF
1216 }
1217
1218 check_type(){
1219     log check_type "$@"
1220     headers=$1
1221     type=$2
1222     shift 2
1223     disable_safe "$type"
1224     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1225 }
1226
1227 check_struct(){
1228     log check_struct "$@"
1229     headers=$1
1230     struct=$2
1231     member=$3
1232     shift 3
1233     disable_safe "${struct}_${member}"
1234     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1235         enable_safe "${struct}_${member}"
1236 }
1237
1238 check_builtin(){
1239     log check_builtin "$@"
1240     name=$1
1241     headers=$2
1242     builtin=$3
1243     shift 3
1244     disable "$name"
1245     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1246 }
1247
1248 check_compile_assert(){
1249     log check_compile_assert "$@"
1250     name=$1
1251     headers=$2
1252     condition=$3
1253     shift 3
1254     disable "$name"
1255     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1256 }
1257
1258 require(){
1259     name="$1"
1260     header="$2"
1261     func="$3"
1262     shift 3
1263     check_lib $header $func "$@" || die "ERROR: $name not found"
1264 }
1265
1266 require2(){
1267     name="$1"
1268     headers="$2"
1269     func="$3"
1270     shift 3
1271     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1272 }
1273
1274 require_cpp(){
1275     name="$1"
1276     headers="$2"
1277     classes="$3"
1278     shift 3
1279     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1280 }
1281
1282 use_pkg_config(){
1283     pkg="$1"
1284     check_pkg_config "$@" || return 1
1285     add_cflags    $(get_safe "${pkg}_cflags")
1286     add_extralibs $(get_safe "${pkg}_libs")
1287 }
1288
1289 require_pkg_config(){
1290     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1291 }
1292
1293 require_libfreetype(){
1294     log require_libfreetype "$@"
1295     pkg="freetype2"
1296     check_cmd $pkg_config --exists --print-errors $pkg \
1297       || die "ERROR: $pkg not found"
1298     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1299     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1300     {
1301         echo "#include <ft2build.h>"
1302         echo "#include FT_FREETYPE_H"
1303         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1304         echo "int main(void) { return 0; }"
1305     } | check_ld "cc" $pkg_cflags $pkg_libs \
1306       && set_safe "${pkg}_cflags" $pkg_cflags \
1307       && set_safe "${pkg}_libs"   $pkg_libs \
1308       || die "ERROR: $pkg not found"
1309     add_cflags    $(get_safe "${pkg}_cflags")
1310     add_extralibs $(get_safe "${pkg}_libs")
1311 }
1312
1313 hostcc_e(){
1314     eval printf '%s\\n' $HOSTCC_E
1315 }
1316
1317 hostcc_o(){
1318     eval printf '%s\\n' $HOSTCC_O
1319 }
1320
1321 check_host_cc(){
1322     log check_host_cc "$@"
1323     cat > $TMPC
1324     log_file $TMPC
1325     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1326 }
1327
1328 check_host_cpp(){
1329     log check_host_cpp "$@"
1330     cat > $TMPC
1331     log_file $TMPC
1332     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1333 }
1334
1335 check_host_cppflags(){
1336     log check_host_cppflags "$@"
1337     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1338 int x;
1339 EOF
1340 }
1341
1342 check_host_cflags(){
1343     log check_host_cflags "$@"
1344     set -- $($host_cflags_filter "$@")
1345     check_host_cc "$@" <<EOF && append host_cflags "$@"
1346 int x;
1347 EOF
1348 }
1349
1350 check_host_cpp_condition(){
1351     log check_host_cpp_condition "$@"
1352     header=$1
1353     condition=$2
1354     shift 2
1355     check_host_cpp "$@" <<EOF
1356 #include <$header>
1357 #if !($condition)
1358 #error "unsatisfied condition: $condition"
1359 #endif
1360 EOF
1361 }
1362
1363 cp_if_changed(){
1364     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1365     mkdir -p "$(dirname $2)"
1366     $cp_f "$1" "$2"
1367 }
1368
1369 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1370 # system-dependent things.
1371
1372 AVCODEC_COMPONENTS="
1373     bsfs
1374     decoders
1375     encoders
1376     hwaccels
1377     parsers
1378 "
1379
1380 AVDEVICE_COMPONENTS="
1381     indevs
1382     outdevs
1383 "
1384 AVFILTER_COMPONENTS="
1385     filters
1386 "
1387 AVFORMAT_COMPONENTS="
1388     demuxers
1389     muxers
1390     protocols
1391 "
1392
1393 AVRESAMPLE_COMPONENTS=""
1394 AVUTIL_COMPONENTS=""
1395
1396 COMPONENT_LIST="
1397     $AVCODEC_COMPONENTS
1398     $AVDEVICE_COMPONENTS
1399     $AVFILTER_COMPONENTS
1400     $AVFORMAT_COMPONENTS
1401     $AVRESAMPLE_COMPONENTS
1402     $AVUTIL_COMPONENTS
1403 "
1404
1405 EXAMPLE_LIST="
1406     avio_reading_example
1407     avio_dir_cmd_example
1408     decoding_encoding_example
1409     demuxing_decoding_example
1410     extract_mvs_example
1411     filter_audio_example
1412     filtering_audio_example
1413     filtering_video_example
1414     metadata_example
1415     muxing_example
1416     qsvdec_example
1417     remuxing_example
1418     resampling_audio_example
1419     scaling_video_example
1420     transcode_aac_example
1421     transcoding_example
1422 "
1423
1424 EXTERNAL_LIBRARY_LIST="
1425     avisynth
1426     bzlib
1427     chromaprint
1428     crystalhd
1429     decklink
1430     frei0r
1431     gcrypt
1432     gmp
1433     gnutls
1434     iconv
1435     ladspa
1436     libass
1437     libbluray
1438     libbs2b
1439     libcaca
1440     libcdio
1441     libcelt
1442     libdc1394
1443     libdcadec
1444     libfaac
1445     libfdk_aac
1446     libflite
1447     libfontconfig
1448     libfreetype
1449     libfribidi
1450     libgme
1451     libgsm
1452     libiec61883
1453     libilbc
1454     libkvazaar
1455     libmfx
1456     libmodplug
1457     libmp3lame
1458     libnut
1459     libopencore_amrnb
1460     libopencore_amrwb
1461     libopencv
1462     libopenh264
1463     libopenjpeg
1464     libopus
1465     libpulse
1466     librtmp
1467     librubberband
1468     libschroedinger
1469     libshine
1470     libsmbclient
1471     libsnappy
1472     libsoxr
1473     libspeex
1474     libssh
1475     libtesseract
1476     libtheora
1477     libtwolame
1478     libutvideo
1479     libv4l2
1480     libvidstab
1481     libvo_amrwbenc
1482     libvorbis
1483     libvpx
1484     libwavpack
1485     libwebp
1486     libx264
1487     libx265
1488     libxavs
1489     libxcb
1490     libxcb_shm
1491     libxcb_shape
1492     libxcb_xfixes
1493     libxvid
1494     libzimg
1495     libzmq
1496     libzvbi
1497     lzma
1498     mmal
1499     netcdf
1500     nvenc
1501     openal
1502     opencl
1503     opengl
1504     openssl
1505     schannel
1506     sdl
1507     securetransport
1508     x11grab
1509     xlib
1510     zlib
1511 "
1512
1513 DOCUMENT_LIST="
1514     doc
1515     htmlpages
1516     manpages
1517     podpages
1518     txtpages
1519 "
1520
1521 FEATURE_LIST="
1522     ftrapv
1523     gray
1524     hardcoded_tables
1525     runtime_cpudetect
1526     safe_bitstream_reader
1527     shared
1528     small
1529     static
1530     swscale_alpha
1531 "
1532
1533 HWACCEL_LIST="
1534     d3d11va
1535     dxva2
1536     vaapi
1537     vda
1538     vdpau
1539     videotoolbox
1540     xvmc
1541 "
1542
1543 LIBRARY_LIST="
1544     avcodec
1545     avdevice
1546     avfilter
1547     avformat
1548     avresample
1549     avutil
1550     postproc
1551     swresample
1552     swscale
1553 "
1554
1555 LICENSE_LIST="
1556     gpl
1557     nonfree
1558     version3
1559 "
1560
1561 PROGRAM_LIST="
1562     ffplay
1563     ffprobe
1564     ffserver
1565     ffmpeg
1566 "
1567
1568 SUBSYSTEM_LIST="
1569     dct
1570     dwt
1571     error_resilience
1572     faan
1573     fast_unaligned
1574     fft
1575     lsp
1576     lzo
1577     mdct
1578     pixelutils
1579     network
1580     rdft
1581 "
1582
1583 CONFIG_LIST="
1584     $COMPONENT_LIST
1585     $DOCUMENT_LIST
1586     $EXAMPLE_LIST
1587     $EXTERNAL_LIBRARY_LIST
1588     $FEATURE_LIST
1589     $HWACCEL_LIST
1590     $LICENSE_LIST
1591     $LIBRARY_LIST
1592     $PROGRAM_LIST
1593     $SUBSYSTEM_LIST
1594     fontconfig
1595     incompatible_libav_abi
1596     memalign_hack
1597     memory_poisoning
1598     neon_clobber_test
1599     pic
1600     pod2man
1601     raise_major
1602     thumb
1603     valgrind_backtrace
1604     xmm_clobber_test
1605 "
1606
1607 THREADS_LIST="
1608     pthreads
1609     os2threads
1610     w32threads
1611 "
1612
1613 ATOMICS_LIST="
1614     atomics_gcc
1615     atomics_suncc
1616     atomics_win32
1617 "
1618
1619 ARCH_LIST="
1620     aarch64
1621     alpha
1622     arm
1623     avr32
1624     avr32_ap
1625     avr32_uc
1626     bfin
1627     ia64
1628     m68k
1629     mips
1630     mips64
1631     parisc
1632     ppc
1633     ppc64
1634     s390
1635     sh4
1636     sparc
1637     sparc64
1638     tilegx
1639     tilepro
1640     tomi
1641     x86
1642     x86_32
1643     x86_64
1644 "
1645
1646 ARCH_EXT_LIST_ARM="
1647     armv5te
1648     armv6
1649     armv6t2
1650     armv8
1651     neon
1652     vfp
1653     vfpv3
1654     setend
1655 "
1656
1657 ARCH_EXT_LIST_MIPS="
1658     mipsfpu
1659     mips32r2
1660     mips64r2
1661     mips32r6
1662     mips64r6
1663     mipsdsp
1664     mipsdspr2
1665     msa
1666 "
1667
1668 ARCH_EXT_LIST_LOONGSON="
1669     loongson2
1670     loongson3
1671     mmi
1672 "
1673
1674 ARCH_EXT_LIST_X86_SIMD="
1675     aesni
1676     amd3dnow
1677     amd3dnowext
1678     avx
1679     avx2
1680     fma3
1681     fma4
1682     mmx
1683     mmxext
1684     sse
1685     sse2
1686     sse3
1687     sse4
1688     sse42
1689     ssse3
1690     xop
1691 "
1692
1693 ARCH_EXT_LIST_PPC="
1694     altivec
1695     dcbzl
1696     ldbrx
1697     power8
1698     ppc4xx
1699     vsx
1700 "
1701
1702 ARCH_EXT_LIST_X86="
1703     $ARCH_EXT_LIST_X86_SIMD
1704     cpunop
1705     i686
1706 "
1707
1708 ARCH_EXT_LIST="
1709     $ARCH_EXT_LIST_ARM
1710     $ARCH_EXT_LIST_PPC
1711     $ARCH_EXT_LIST_X86
1712     $ARCH_EXT_LIST_MIPS
1713     $ARCH_EXT_LIST_LOONGSON
1714 "
1715
1716 ARCH_FEATURES="
1717     aligned_stack
1718     fast_64bit
1719     fast_clz
1720     fast_cmov
1721     local_aligned_8
1722     local_aligned_16
1723     local_aligned_32
1724     simd_align_16
1725 "
1726
1727 BUILTIN_LIST="
1728     atomic_cas_ptr
1729     atomic_compare_exchange
1730     machine_rw_barrier
1731     MemoryBarrier
1732     mm_empty
1733     rdtsc
1734     sarestart
1735     sem_timedwait
1736     sync_val_compare_and_swap
1737 "
1738 HAVE_LIST_CMDLINE="
1739     inline_asm
1740     symver
1741     yasm
1742 "
1743
1744 HAVE_LIST_PUB="
1745     bigendian
1746     fast_unaligned
1747     incompatible_libav_abi
1748 "
1749
1750 HEADERS_LIST="
1751     alsa_asoundlib_h
1752     altivec_h
1753     arpa_inet_h
1754     asm_types_h
1755     cdio_paranoia_h
1756     cdio_paranoia_paranoia_h
1757     dispatch_dispatch_h
1758     dev_bktr_ioctl_bt848_h
1759     dev_bktr_ioctl_meteor_h
1760     dev_ic_bt8xx_h
1761     dev_video_bktr_ioctl_bt848_h
1762     dev_video_meteor_ioctl_meteor_h
1763     direct_h
1764     dirent_h
1765     dlfcn_h
1766     d3d11_h
1767     dxva_h
1768     ES2_gl_h
1769     gsm_h
1770     io_h
1771     mach_mach_time_h
1772     machine_ioctl_bt848_h
1773     machine_ioctl_meteor_h
1774     malloc_h
1775     opencv2_core_core_c_h
1776     openjpeg_2_1_openjpeg_h
1777     openjpeg_2_0_openjpeg_h
1778     openjpeg_1_5_openjpeg_h
1779     OpenGL_gl3_h
1780     poll_h
1781     sndio_h
1782     soundcard_h
1783     sys_mman_h
1784     sys_param_h
1785     sys_resource_h
1786     sys_select_h
1787     sys_soundcard_h
1788     sys_time_h
1789     sys_un_h
1790     sys_videoio_h
1791     termios_h
1792     udplite_h
1793     unistd_h
1794     valgrind_valgrind_h
1795     windows_h
1796     winsock2_h
1797 "
1798
1799 INTRINSICS_LIST="
1800     intrinsics_neon
1801 "
1802
1803 COMPLEX_FUNCS="
1804     cabs
1805     cexp
1806 "
1807
1808 MATH_FUNCS="
1809     atanf
1810     atan2f
1811     cbrt
1812     cbrtf
1813     copysign
1814     cosf
1815     erf
1816     exp2
1817     exp2f
1818     expf
1819     hypot
1820     isfinite
1821     isinf
1822     isnan
1823     ldexpf
1824     llrint
1825     llrintf
1826     log2
1827     log2f
1828     log10f
1829     lrint
1830     lrintf
1831     powf
1832     rint
1833     round
1834     roundf
1835     sinf
1836     trunc
1837     truncf
1838 "
1839
1840 SYSTEM_FUNCS="
1841     access
1842     aligned_malloc
1843     arc4random
1844     clock_gettime
1845     closesocket
1846     CommandLineToArgvW
1847     CoTaskMemFree
1848     CryptGenRandom
1849     dlopen
1850     fcntl
1851     flt_lim
1852     fork
1853     getaddrinfo
1854     gethrtime
1855     getopt
1856     GetProcessAffinityMask
1857     GetProcessMemoryInfo
1858     GetProcessTimes
1859     getrusage
1860     GetSystemTimeAsFileTime
1861     gettimeofday
1862     glob
1863     glXGetProcAddress
1864     gmtime_r
1865     inet_aton
1866     isatty
1867     jack_port_get_latency_range
1868     kbhit
1869     localtime_r
1870     lstat
1871     lzo1x_999_compress
1872     mach_absolute_time
1873     MapViewOfFile
1874     memalign
1875     mkstemp
1876     mmap
1877     mprotect
1878     nanosleep
1879     PeekNamedPipe
1880     posix_memalign
1881     pthread_cancel
1882     sched_getaffinity
1883     SetConsoleTextAttribute
1884     SetConsoleCtrlHandler
1885     setmode
1886     setrlimit
1887     Sleep
1888     strerror_r
1889     sysconf
1890     sysctl
1891     usleep
1892     UTGetOSTypeFromString
1893     VirtualAlloc
1894     wglGetProcAddress
1895 "
1896
1897 TOOLCHAIN_FEATURES="
1898     as_dn_directive
1899     as_func
1900     as_object_arch
1901     asm_mod_q
1902     attribute_may_alias
1903     attribute_packed
1904     ebp_available
1905     ebx_available
1906     gnu_as
1907     gnu_windres
1908     ibm_asm
1909     inline_asm_direct_symbol_refs
1910     inline_asm_labels
1911     inline_asm_nonlocal_labels
1912     pragma_deprecated
1913     rsync_contimeout
1914     symver_asm_label
1915     symver_gnu_asm
1916     vfp_args
1917     xform_asm
1918     xmm_clobbers
1919 "
1920
1921 TYPES_LIST="
1922     CONDITION_VARIABLE_Ptr
1923     socklen_t
1924     struct_addrinfo
1925     struct_group_source_req
1926     struct_ip_mreq_source
1927     struct_ipv6_mreq
1928     struct_pollfd
1929     struct_rusage_ru_maxrss
1930     struct_sctp_event_subscribe
1931     struct_sockaddr_in6
1932     struct_sockaddr_sa_len
1933     struct_sockaddr_storage
1934     struct_stat_st_mtim_tv_nsec
1935     struct_v4l2_frmivalenum_discrete
1936 "
1937
1938 HAVE_LIST="
1939     $ARCH_EXT_LIST
1940     $(add_suffix _external $ARCH_EXT_LIST)
1941     $(add_suffix _inline   $ARCH_EXT_LIST)
1942     $ARCH_FEATURES
1943     $ATOMICS_LIST
1944     $BUILTIN_LIST
1945     $COMPLEX_FUNCS
1946     $HAVE_LIST_CMDLINE
1947     $HAVE_LIST_PUB
1948     $HEADERS_LIST
1949     $INTRINSICS_LIST
1950     $MATH_FUNCS
1951     $SYSTEM_FUNCS
1952     $THREADS_LIST
1953     $TOOLCHAIN_FEATURES
1954     $TYPES_LIST
1955     atomics_native
1956     dos_paths
1957     dxva2_lib
1958     dxva2api_cobj
1959     libc_msvcrt
1960     libdc1394_1
1961     libdc1394_2
1962     makeinfo
1963     makeinfo_html
1964     perl
1965     pod2man
1966     sdl
1967     section_data_rel_ro
1968     texi2html
1969     threads
1970     vaapi_x11
1971     vdpau_x11
1972     winrt
1973     xlib
1974 "
1975
1976 # options emitted with CONFIG_ prefix but not available on the command line
1977 CONFIG_EXTRA="
1978     aandcttables
1979     ac3dsp
1980     audio_frame_queue
1981     audiodsp
1982     blockdsp
1983     bswapdsp
1984     cabac
1985     dirac_parse
1986     dvprofile
1987     exif
1988     faandct
1989     faanidct
1990     fdctdsp
1991     flacdsp
1992     fmtconvert
1993     frame_thread_encoder
1994     g722dsp
1995     golomb
1996     gplv3
1997     h263dsp
1998     h264chroma
1999     h264dsp
2000     h264pred
2001     h264qpel
2002     hpeldsp
2003     huffman
2004     huffyuvdsp
2005     huffyuvencdsp
2006     idctdsp
2007     iirfilter
2008     imdct15
2009     intrax8
2010     ividsp
2011     jpegtables
2012     lgplv3
2013     libx262
2014     llauddsp
2015     llviddsp
2016     lpc
2017     lzf
2018     me_cmp
2019     mpeg_er
2020     mpegaudio
2021     mpegaudiodsp
2022     mpegvideo
2023     mpegvideoenc
2024     mss34dsp
2025     pixblockdsp
2026     qpeldsp
2027     qsv
2028     qsvdec
2029     qsvenc
2030     rangecoder
2031     riffdec
2032     riffenc
2033     rtpdec
2034     rtpenc_chain
2035     rv34dsp
2036     sinewin
2037     snappy
2038     startcode
2039     texturedsp
2040     texturedspenc
2041     tpeldsp
2042     videodsp
2043     vp3dsp
2044     vp56dsp
2045     vp8dsp
2046     wma_freqs
2047     wmv2dsp
2048 "
2049
2050 CMDLINE_SELECT="
2051     $ARCH_EXT_LIST
2052     $CONFIG_LIST
2053     $HAVE_LIST_CMDLINE
2054     $THREADS_LIST
2055     asm
2056     cross_compile
2057     debug
2058     extra_warnings
2059     logging
2060     lto
2061     optimizations
2062     rpath
2063     stripping
2064 "
2065
2066 PATHS_LIST="
2067     bindir
2068     datadir
2069     docdir
2070     incdir
2071     libdir
2072     mandir
2073     pkgconfigdir
2074     prefix
2075     shlibdir
2076 "
2077
2078 CMDLINE_SET="
2079     $PATHS_LIST
2080     ar
2081     arch
2082     as
2083     assert_level
2084     build_suffix
2085     cc
2086     objcc
2087     cpu
2088     cross_prefix
2089     custom_allocator
2090     cxx
2091     dep_cc
2092     doxygen
2093     env
2094     extra_version
2095     gas
2096     host_cc
2097     host_cflags
2098     host_ld
2099     host_ldflags
2100     host_libs
2101     host_os
2102     install
2103     ld
2104     logfile
2105     malloc_prefix
2106     nm
2107     optflags
2108     pkg_config
2109     pkg_config_flags
2110     progs_suffix
2111     random_seed
2112     ranlib
2113     samples
2114     strip
2115     sws_max_filter_size
2116     sysinclude
2117     sysroot
2118     target_exec
2119     target_os
2120     target_path
2121     target_samples
2122     tempprefix
2123     toolchain
2124     valgrind
2125     yasmexe
2126 "
2127
2128 CMDLINE_APPEND="
2129     extra_cflags
2130     extra_cxxflags
2131     extra_objcflags
2132     host_cppflags
2133 "
2134
2135 # code dependency declarations
2136
2137 # architecture extensions
2138
2139 armv5te_deps="arm"
2140 armv6_deps="arm"
2141 armv6t2_deps="arm"
2142 armv8_deps="aarch64"
2143 neon_deps_any="aarch64 arm"
2144 intrinsics_neon_deps="neon"
2145 vfp_deps_any="aarch64 arm"
2146 vfpv3_deps="vfp"
2147 setend_deps="arm"
2148
2149 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2150
2151 mipsfpu_deps="mips"
2152 mipsdsp_deps="mips"
2153 mipsdspr2_deps="mips"
2154 mips32r2_deps="mips"
2155 mips32r6_deps="mips"
2156 mips64r2_deps="mips"
2157 mips64r6_deps="mips"
2158 msa_deps="mips"
2159 mmi_deps="mips"
2160
2161 altivec_deps="ppc"
2162 dcbzl_deps="ppc"
2163 ldbrx_deps="ppc"
2164 ppc4xx_deps="ppc"
2165 vsx_deps="altivec"
2166 power8_deps="vsx"
2167
2168 cpunop_deps="i686"
2169 x86_64_select="i686"
2170 x86_64_suggest="fast_cmov"
2171
2172 amd3dnow_deps="mmx"
2173 amd3dnowext_deps="amd3dnow"
2174 i686_deps="x86"
2175 mmx_deps="x86"
2176 mmxext_deps="mmx"
2177 sse_deps="mmxext"
2178 sse2_deps="sse"
2179 sse3_deps="sse2"
2180 ssse3_deps="sse3"
2181 sse4_deps="ssse3"
2182 sse42_deps="sse4"
2183 aesni_deps="sse42"
2184 avx_deps="sse42"
2185 xop_deps="avx"
2186 fma3_deps="avx"
2187 fma4_deps="avx"
2188 avx2_deps="avx"
2189
2190 mmx_external_deps="yasm"
2191 mmx_inline_deps="inline_asm"
2192 mmx_suggest="mmx_external mmx_inline"
2193
2194 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2195     eval dep=\$${ext}_deps
2196     eval ${ext}_external_deps='"${dep}_external"'
2197     eval ${ext}_inline_deps='"${dep}_inline"'
2198     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2199 done
2200
2201 aligned_stack_if_any="aarch64 ppc x86"
2202 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2203 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2204 fast_unaligned_if_any="aarch64 ppc x86"
2205 simd_align_16_if_any="altivec neon sse"
2206
2207 # system capabilities
2208 symver_if_any="symver_asm_label symver_gnu_asm"
2209 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2210
2211 # threading support
2212 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2213 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2214 atomics_win32_if="MemoryBarrier"
2215 atomics_native_if_any="$ATOMICS_LIST"
2216 w32threads_deps="atomics_native"
2217 threads_if_any="$THREADS_LIST"
2218
2219 # subsystems
2220 dct_select="rdft"
2221 dirac_parse_select="golomb"
2222 error_resilience_select="me_cmp"
2223 faandct_deps="faan fdctdsp"
2224 faanidct_deps="faan idctdsp"
2225 frame_thread_encoder_deps="encoders threads"
2226 intrax8_select="error_resilience"
2227 mdct_select="fft"
2228 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2229 mpeg_er_select="error_resilience"
2230 mpegaudio_select="mpegaudiodsp"
2231 mpegaudiodsp_select="dct"
2232 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2233 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2234 qsvdec_select="qsv"
2235 qsvenc_select="qsv"
2236 rdft_select="fft"
2237
2238 # decoders / encoders
2239 aac_decoder_select="imdct15 mdct sinewin"
2240 aac_fixed_decoder_select="mdct sinewin"
2241 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2242 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2243 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2244 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2245 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2246 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2247 adpcm_g722_decoder_select="g722dsp"
2248 adpcm_g722_encoder_select="g722dsp"
2249 aic_decoder_select="golomb idctdsp"
2250 alac_encoder_select="lpc"
2251 als_decoder_select="bswapdsp"
2252 amrnb_decoder_select="lsp"
2253 amrwb_decoder_select="lsp"
2254 amv_decoder_select="sp5x_decoder exif"
2255 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2256 ape_decoder_select="bswapdsp llauddsp"
2257 apng_decoder_select="zlib"
2258 apng_encoder_select="huffyuvencdsp zlib"
2259 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2260 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2261 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2262 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2263 atrac1_decoder_select="mdct sinewin"
2264 atrac3_decoder_select="mdct"
2265 atrac3p_decoder_select="mdct sinewin"
2266 avrn_decoder_select="exif jpegtables"
2267 bink_decoder_select="blockdsp hpeldsp"
2268 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2269 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2270 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2271 cllc_decoder_select="bswapdsp"
2272 comfortnoise_encoder_select="lpc"
2273 cook_decoder_select="audiodsp mdct sinewin"
2274 cscd_decoder_select="lzo"
2275 cscd_decoder_suggest="zlib"
2276 dca_decoder_select="mdct"
2277 dds_decoder_select="texturedsp"
2278 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2279 dnxhd_decoder_select="blockdsp idctdsp"
2280 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2281 dvvideo_decoder_select="dvprofile idctdsp"
2282 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2283 dxa_decoder_select="zlib"
2284 dxv_decoder_select="lzf texturedsp"
2285 eac3_decoder_select="ac3_decoder"
2286 eac3_encoder_select="ac3_encoder"
2287 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2288 eatgq_decoder_select="aandcttables"
2289 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2290 exr_decoder_select="zlib"
2291 ffv1_decoder_select="golomb rangecoder"
2292 ffv1_encoder_select="rangecoder"
2293 ffvhuff_decoder_select="huffyuv_decoder"
2294 ffvhuff_encoder_select="huffyuv_encoder"
2295 fic_decoder_select="golomb"
2296 flac_decoder_select="flacdsp golomb"
2297 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2298 flashsv2_decoder_select="zlib"
2299 flashsv2_encoder_select="zlib"
2300 flashsv_decoder_select="zlib"
2301 flashsv_encoder_select="zlib"
2302 flv_decoder_select="h263_decoder"
2303 flv_encoder_select="h263_encoder"
2304 fourxm_decoder_select="blockdsp bswapdsp"
2305 fraps_decoder_select="bswapdsp huffman"
2306 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2307 g729_decoder_select="audiodsp"
2308 h261_decoder_select="mpegvideo"
2309 h261_encoder_select="aandcttables mpegvideoenc"
2310 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2311 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2312 h263i_decoder_select="h263_decoder"
2313 h263p_decoder_select="h263_decoder"
2314 h263p_encoder_select="h263_encoder"
2315 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2316 h264_decoder_suggest="error_resilience"
2317 h264_qsv_decoder_deps="libmfx"
2318 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2319 h264_qsv_encoder_deps="libmfx"
2320 h264_qsv_encoder_select="qsvenc"
2321 hap_decoder_select="snappy texturedsp"
2322 hap_encoder_deps="libsnappy"
2323 hap_encoder_select="texturedspenc"
2324 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2325 hevc_qsv_decoder_deps="libmfx"
2326 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2327 hevc_qsv_encoder_deps="libmfx"
2328 hevc_qsv_encoder_select="qsvenc"
2329 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2330 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2331 iac_decoder_select="imc_decoder"
2332 imc_decoder_select="bswapdsp fft mdct sinewin"
2333 indeo3_decoder_select="hpeldsp"
2334 indeo4_decoder_select="ividsp"
2335 indeo5_decoder_select="ividsp"
2336 interplay_video_decoder_select="hpeldsp"
2337 jpegls_decoder_select="golomb mjpeg_decoder"
2338 jpegls_encoder_select="golomb"
2339 jv_decoder_select="blockdsp"
2340 lagarith_decoder_select="huffyuvdsp"
2341 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2342 loco_decoder_select="golomb"
2343 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2344 metasound_decoder_select="lsp mdct sinewin"
2345 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2346 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2347 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2348 mjpegb_decoder_select="mjpeg_decoder"
2349 mlp_decoder_select="mlp_parser"
2350 motionpixels_decoder_select="bswapdsp"
2351 mp1_decoder_select="mpegaudio"
2352 mp1float_decoder_select="mpegaudio"
2353 mp2_decoder_select="mpegaudio"
2354 mp2float_decoder_select="mpegaudio"
2355 mp3_decoder_select="mpegaudio"
2356 mp3adu_decoder_select="mpegaudio"
2357 mp3adufloat_decoder_select="mpegaudio"
2358 mp3float_decoder_select="mpegaudio"
2359 mp3on4_decoder_select="mpegaudio"
2360 mp3on4float_decoder_select="mpegaudio"
2361 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2362 mpc8_decoder_select="mpegaudiodsp"
2363 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2364 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2365 mpegvideo_decoder_select="mpegvideo"
2366 mpeg1video_decoder_select="mpegvideo"
2367 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2368 mpeg2video_decoder_select="mpegvideo"
2369 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2370 mpeg2_qsv_decoder_deps="libmfx"
2371 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2372 mpeg2_qsv_encoder_deps="libmfx"
2373 mpeg2_qsv_encoder_select="qsvenc"
2374 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2375 mpeg4_encoder_select="h263_encoder"
2376 msa1_decoder_select="mss34dsp"
2377 msmpeg4v1_decoder_select="h263_decoder"
2378 msmpeg4v2_decoder_select="h263_decoder"
2379 msmpeg4v2_encoder_select="h263_encoder"
2380 msmpeg4v3_decoder_select="h263_decoder"
2381 msmpeg4v3_encoder_select="h263_encoder"
2382 mss2_decoder_select="vc1_decoder"
2383 mts2_decoder_select="mss34dsp"
2384 mxpeg_decoder_select="mjpeg_decoder"
2385 nellymoser_decoder_select="mdct sinewin"
2386 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2387 nuv_decoder_select="idctdsp lzo"
2388 on2avc_decoder_select="mdct"
2389 opus_decoder_deps="swresample"
2390 opus_decoder_select="imdct15"
2391 png_decoder_select="zlib"
2392 png_encoder_select="huffyuvencdsp zlib"
2393 prores_decoder_select="blockdsp idctdsp"
2394 prores_encoder_select="fdctdsp"
2395 qcelp_decoder_select="lsp"
2396 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2397 ra_144_decoder_select="audiodsp"
2398 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2399 ralf_decoder_select="golomb"
2400 rawvideo_decoder_select="bswapdsp"
2401 rscc_decoder_select="zlib"
2402 rtjpeg_decoder_select="me_cmp"
2403 rv10_decoder_select="h263_decoder"
2404 rv10_encoder_select="h263_encoder"
2405 rv20_decoder_select="h263_decoder"
2406 rv20_encoder_select="h263_encoder"
2407 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2408 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2409 screenpresso_decoder_select="zlib"
2410 shorten_decoder_select="golomb"
2411 sipr_decoder_select="lsp"
2412 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2413 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2414 sonic_decoder_select="golomb rangecoder"
2415 sonic_encoder_select="golomb rangecoder"
2416 sonic_ls_encoder_select="golomb rangecoder"
2417 sp5x_decoder_select="mjpeg_decoder"
2418 svq1_decoder_select="hpeldsp"
2419 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2420 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2421 svq3_decoder_suggest="zlib"
2422 tak_decoder_select="audiodsp"
2423 tdsc_decoder_select="zlib mjpeg_decoder"
2424 theora_decoder_select="vp3_decoder"
2425 thp_decoder_select="mjpeg_decoder"
2426 tiff_decoder_suggest="zlib lzma"
2427 tiff_encoder_suggest="zlib"
2428 truehd_decoder_select="mlp_parser"
2429 truemotion2_decoder_select="bswapdsp"
2430 truespeech_decoder_select="bswapdsp"
2431 tscc_decoder_select="zlib"
2432 twinvq_decoder_select="mdct lsp sinewin"
2433 txd_decoder_select="texturedsp"
2434 utvideo_decoder_select="bswapdsp"
2435 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2436 vble_decoder_select="huffyuvdsp"
2437 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2438 vc1_qsv_decoder_deps="libmfx"
2439 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2440 vc1image_decoder_select="vc1_decoder"
2441 vorbis_decoder_select="mdct"
2442 vorbis_encoder_select="mdct"
2443 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2444 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2445 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2446 vp6a_decoder_select="vp6_decoder"
2447 vp6f_decoder_select="vp6_decoder"
2448 vp7_decoder_select="h264pred videodsp vp8dsp"
2449 vp8_decoder_select="h264pred videodsp vp8dsp"
2450 vp9_decoder_select="videodsp vp9_parser"
2451 webp_decoder_select="vp8_decoder exif"
2452 wmalossless_decoder_select="llauddsp"
2453 wmapro_decoder_select="mdct sinewin wma_freqs"
2454 wmav1_decoder_select="mdct sinewin wma_freqs"
2455 wmav1_encoder_select="mdct sinewin wma_freqs"
2456 wmav2_decoder_select="mdct sinewin wma_freqs"
2457 wmav2_encoder_select="mdct sinewin wma_freqs"
2458 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2459 wmv1_decoder_select="h263_decoder"
2460 wmv1_encoder_select="h263_encoder"
2461 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2462 wmv2_encoder_select="h263_encoder wmv2dsp"
2463 wmv3_decoder_select="vc1_decoder"
2464 wmv3image_decoder_select="wmv3_decoder"
2465 xma1_decoder_select="wmapro_decoder"
2466 xma2_decoder_select="wmapro_decoder"
2467 zerocodec_decoder_select="zlib"
2468 zlib_decoder_select="zlib"
2469 zlib_encoder_select="zlib"
2470 zmbv_decoder_select="zlib"
2471 zmbv_encoder_select="zlib"
2472
2473 # hardware accelerators
2474 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2475 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2476 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2477 vaapi_deps="va_va_h"
2478 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2479 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2480 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2481 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2482 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2483 xvmc_deps="X11_extensions_XvMClib_h"
2484
2485 h263_vaapi_hwaccel_deps="vaapi"
2486 h263_vaapi_hwaccel_select="h263_decoder"
2487 h263_videotoolbox_hwaccel_deps="videotoolbox"
2488 h263_videotoolbox_hwaccel_select="h263_decoder"
2489 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2490 h264_d3d11va_hwaccel_deps="d3d11va"
2491 h264_d3d11va_hwaccel_select="h264_decoder"
2492 h264_dxva2_hwaccel_deps="dxva2"
2493 h264_dxva2_hwaccel_select="h264_decoder"
2494 h264_mmal_decoder_deps="mmal"
2495 h264_mmal_decoder_select="mmal"
2496 h264_mmal_hwaccel_deps="mmal"
2497 h264_qsv_hwaccel_deps="libmfx"
2498 h264_vaapi_hwaccel_deps="vaapi"
2499 h264_vaapi_hwaccel_select="h264_decoder"
2500 h264_vda_decoder_deps="vda"
2501 h264_vda_decoder_select="h264_decoder"
2502 h264_vda_hwaccel_deps="vda"
2503 h264_vda_hwaccel_select="h264_decoder"
2504 h264_vda_old_hwaccel_deps="vda"
2505 h264_vda_old_hwaccel_select="h264_decoder"
2506 h264_vdpau_decoder_deps="vdpau"
2507 h264_vdpau_decoder_select="h264_decoder"
2508 h264_vdpau_hwaccel_deps="vdpau"
2509 h264_vdpau_hwaccel_select="h264_decoder"
2510 h264_videotoolbox_hwaccel_deps="videotoolbox"
2511 h264_videotoolbox_hwaccel_select="h264_decoder"
2512 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2513 hevc_d3d11va_hwaccel_select="hevc_decoder"
2514 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2515 hevc_dxva2_hwaccel_select="hevc_decoder"
2516 hevc_qsv_hwaccel_deps="libmfx"
2517 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2518 hevc_vaapi_hwaccel_select="hevc_decoder"
2519 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2520 hevc_vdpau_hwaccel_select="hevc_decoder"
2521 mpeg_vdpau_decoder_deps="vdpau"
2522 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2523 mpeg_xvmc_hwaccel_deps="xvmc"
2524 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2525 mpeg1_vdpau_decoder_deps="vdpau"
2526 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2527 mpeg1_vdpau_hwaccel_deps="vdpau"
2528 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2529 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2530 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2531 mpeg1_xvmc_hwaccel_deps="xvmc"
2532 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2533 mpeg2_crystalhd_decoder_select="crystalhd"
2534 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2535 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2536 mpeg2_dxva2_hwaccel_deps="dxva2"
2537 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2538 mpeg2_mmal_decoder_deps="mmal"
2539 mpeg2_mmal_decoder_select="mmal"
2540 mpeg2_mmal_hwaccel_deps="mmal"
2541 mpeg2_qsv_hwaccel_deps="libmfx"
2542 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2543 mpeg2_vaapi_hwaccel_deps="vaapi"
2544 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2545 mpeg2_vdpau_hwaccel_deps="vdpau"
2546 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2547 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2548 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2549 mpeg2_xvmc_hwaccel_deps="xvmc"
2550 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2551 mpeg4_crystalhd_decoder_select="crystalhd"
2552 mpeg4_mmal_decoder_deps="mmal"
2553 mpeg4_mmal_decoder_select="mmal"
2554 mpeg4_mmal_hwaccel_deps="mmal"
2555 mpeg4_vaapi_hwaccel_deps="vaapi"
2556 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2557 mpeg4_vdpau_decoder_deps="vdpau"
2558 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2559 mpeg4_vdpau_hwaccel_deps="vdpau"
2560 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2561 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2562 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2563 msmpeg4_crystalhd_decoder_select="crystalhd"
2564 vc1_crystalhd_decoder_select="crystalhd"
2565 vc1_d3d11va_hwaccel_deps="d3d11va"
2566 vc1_d3d11va_hwaccel_select="vc1_decoder"
2567 vc1_dxva2_hwaccel_deps="dxva2"
2568 vc1_dxva2_hwaccel_select="vc1_decoder"
2569 vc1_mmal_decoder_deps="mmal"
2570 vc1_mmal_decoder_select="mmal"
2571 vc1_mmal_hwaccel_deps="mmal"
2572 vc1_qsv_hwaccel_deps="libmfx"
2573 vc1_qsv_hwaccel_select="qsvdec_vc1"
2574 vc1_vaapi_hwaccel_deps="vaapi"
2575 vc1_vaapi_hwaccel_select="vc1_decoder"
2576 vc1_vdpau_decoder_deps="vdpau"
2577 vc1_vdpau_decoder_select="vc1_decoder"
2578 vc1_vdpau_hwaccel_deps="vdpau"
2579 vc1_vdpau_hwaccel_select="vc1_decoder"
2580 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2581 vp9_d3d11va_hwaccel_select="vp9_decoder"
2582 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2583 vp9_dxva2_hwaccel_select="vp9_decoder"
2584 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2585 vp9_vaapi_hwaccel_select="vp9_decoder"
2586 wmv3_crystalhd_decoder_select="crystalhd"
2587 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2588 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2589 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2590 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2591 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2592
2593 # parsers
2594 h264_parser_select="h264_decoder"
2595 hevc_parser_select="golomb"
2596 mpegvideo_parser_select="mpegvideo"
2597 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2598 vc1_parser_select="mpegvideo startcode vc1_decoder"
2599
2600 # bitstream_filters
2601 mjpeg2jpeg_bsf_select="jpegtables"
2602
2603 # external libraries
2604 chromaprint_muxer_deps="chromaprint"
2605 libcelt_decoder_deps="libcelt"
2606 libdcadec_decoder_deps="libdcadec"
2607 libfaac_encoder_deps="libfaac"
2608 libfaac_encoder_select="audio_frame_queue"
2609 libfdk_aac_decoder_deps="libfdk_aac"
2610 libfdk_aac_encoder_deps="libfdk_aac"
2611 libfdk_aac_encoder_select="audio_frame_queue"
2612 libgme_demuxer_deps="libgme"
2613 libgsm_decoder_deps="libgsm"
2614 libgsm_encoder_deps="libgsm"
2615 libgsm_ms_decoder_deps="libgsm"
2616 libgsm_ms_encoder_deps="libgsm"
2617 libilbc_decoder_deps="libilbc"
2618 libilbc_encoder_deps="libilbc"
2619 libkvazaar_encoder_deps="libkvazaar"
2620 libmodplug_demuxer_deps="libmodplug"
2621 libmp3lame_encoder_deps="libmp3lame"
2622 libmp3lame_encoder_select="audio_frame_queue"
2623 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2624 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2625 libopencore_amrnb_encoder_select="audio_frame_queue"
2626 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2627 libopenh264_encoder_deps="libopenh264"
2628 libopenjpeg_decoder_deps="libopenjpeg"
2629 libopenjpeg_encoder_deps="libopenjpeg"
2630 libopus_decoder_deps="libopus"
2631 libopus_encoder_deps="libopus"
2632 libopus_encoder_select="audio_frame_queue"
2633 libschroedinger_decoder_deps="libschroedinger"
2634 libschroedinger_encoder_deps="libschroedinger"
2635 libshine_encoder_deps="libshine"
2636 libshine_encoder_select="audio_frame_queue"
2637 libspeex_decoder_deps="libspeex"
2638 libspeex_encoder_deps="libspeex"
2639 libspeex_encoder_select="audio_frame_queue"
2640 libtheora_encoder_deps="libtheora"
2641 libtwolame_encoder_deps="libtwolame"
2642 libutvideo_decoder_deps="libutvideo"
2643 libutvideo_encoder_deps="libutvideo"
2644 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2645 libvorbis_decoder_deps="libvorbis"
2646 libvorbis_encoder_deps="libvorbis"
2647 libvorbis_encoder_select="audio_frame_queue"
2648 libvpx_vp8_decoder_deps="libvpx"
2649 libvpx_vp8_encoder_deps="libvpx"
2650 libvpx_vp9_decoder_deps="libvpx"
2651 libvpx_vp9_encoder_deps="libvpx"
2652 libwavpack_encoder_deps="libwavpack"
2653 libwebp_encoder_deps="libwebp"
2654 libwebp_anim_encoder_deps="libwebp"
2655 libx262_encoder_deps="libx262"
2656 libx264_encoder_deps="libx264"
2657 libx264rgb_encoder_deps="libx264"
2658 libx264rgb_encoder_select="libx264_encoder"
2659 libx265_encoder_deps="libx265"
2660 libxavs_encoder_deps="libxavs"
2661 libxvid_encoder_deps="libxvid"
2662 libzvbi_teletext_decoder_deps="libzvbi"
2663 nvenc_encoder_deps="nvenc"
2664 nvenc_h264_encoder_deps="nvenc"
2665 nvenc_hevc_encoder_deps="nvenc"
2666
2667 # demuxers / muxers
2668 ac3_demuxer_select="ac3_parser"
2669 asf_demuxer_select="riffdec"
2670 asf_o_demuxer_select="riffdec"
2671 asf_muxer_select="riffenc"
2672 asf_stream_muxer_select="asf_muxer"
2673 avi_demuxer_select="riffdec exif"
2674 avi_muxer_select="riffenc"
2675 avisynth_demuxer_deps="avisynth"
2676 avisynth_demuxer_select="riffdec"
2677 caf_demuxer_select="riffdec"
2678 dash_muxer_select="mp4_muxer"
2679 dirac_demuxer_select="dirac_parser"
2680 dts_demuxer_select="dca_parser"
2681 dtshd_demuxer_select="dca_parser"
2682 dv_demuxer_select="dvprofile"
2683 dv_muxer_select="dvprofile"
2684 dxa_demuxer_select="riffdec"
2685 eac3_demuxer_select="ac3_parser"
2686 f4v_muxer_select="mov_muxer"
2687 flac_demuxer_select="flac_parser"
2688 hds_muxer_select="flv_muxer"
2689 hls_muxer_select="mpegts_muxer"
2690 image2_alias_pix_demuxer_select="image2_demuxer"
2691 image2_brender_pix_demuxer_select="image2_demuxer"
2692 ipod_muxer_select="mov_muxer"
2693 ismv_muxer_select="mov_muxer"
2694 libnut_demuxer_deps="libnut"
2695 libnut_muxer_deps="libnut"
2696 matroska_audio_muxer_select="matroska_muxer"
2697 matroska_demuxer_select="riffdec"
2698 matroska_demuxer_suggest="bzlib lzo zlib"
2699 matroska_muxer_select="riffenc"
2700 mmf_muxer_select="riffenc"
2701 mov_demuxer_select="riffdec"
2702 mov_demuxer_suggest="zlib"
2703 mov_muxer_select="riffenc rtpenc_chain"
2704 mp3_demuxer_select="mpegaudio_parser"
2705 mp4_muxer_select="mov_muxer"
2706 mpegts_muxer_select="adts_muxer latm_muxer"
2707 mpegtsraw_demuxer_select="mpegts_demuxer"
2708 mxf_d10_muxer_select="mxf_muxer"
2709 mxf_opatom_muxer_select="mxf_muxer"
2710 nut_muxer_select="riffenc"
2711 nuv_demuxer_select="riffdec"
2712 oga_muxer_select="ogg_muxer"
2713 ogg_demuxer_select="dirac_parse"
2714 opus_muxer_select="ogg_muxer"
2715 psp_muxer_select="mov_muxer"
2716 rtp_demuxer_select="sdp_demuxer"
2717 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2718 rtsp_demuxer_select="http_protocol rtpdec"
2719 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2720 sap_demuxer_select="sdp_demuxer"
2721 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2722 sdp_demuxer_select="rtpdec"
2723 smoothstreaming_muxer_select="ismv_muxer"
2724 spdif_muxer_select="aac_parser"
2725 spx_muxer_select="ogg_muxer"
2726 swf_demuxer_suggest="zlib"
2727 tak_demuxer_select="tak_parser"
2728 tg2_muxer_select="mov_muxer"
2729 tgp_muxer_select="mov_muxer"
2730 vobsub_demuxer_select="mpegps_demuxer"
2731 w64_demuxer_select="wav_demuxer"
2732 w64_muxer_select="wav_muxer"
2733 wav_demuxer_select="riffdec"
2734 wav_muxer_select="riffenc"
2735 webm_muxer_select="riffenc"
2736 webm_dash_manifest_demuxer_select="matroska_demuxer"
2737 wtv_demuxer_select="riffdec"
2738 wtv_muxer_select="riffenc"
2739 xmv_demuxer_select="riffdec"
2740 xwma_demuxer_select="riffdec"
2741
2742 # indevs / outdevs
2743 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2744 alsa_outdev_deps="alsa_asoundlib_h"
2745 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2746 avfoundation_indev_select="avfoundation"
2747 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2748 caca_outdev_deps="libcaca"
2749 decklink_indev_deps="decklink pthreads"
2750 decklink_indev_extralibs="-lstdc++"
2751 decklink_outdev_deps="decklink pthreads"
2752 decklink_outdev_extralibs="-lstdc++"
2753 dshow_indev_deps="IBaseFilter"
2754 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2755 dv1394_indev_deps="dv1394"
2756 dv1394_indev_select="dv_demuxer"
2757 fbdev_indev_deps="linux_fb_h"
2758 fbdev_outdev_deps="linux_fb_h"
2759 gdigrab_indev_deps="CreateDIBSection"
2760 gdigrab_indev_extralibs="-lgdi32"
2761 gdigrab_indev_select="bmp_decoder"
2762 iec61883_indev_deps="libiec61883"
2763 jack_indev_deps="jack_jack_h"
2764 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2765 lavfi_indev_deps="avfilter"
2766 libcdio_indev_deps="libcdio"
2767 libdc1394_indev_deps="libdc1394"
2768 libv4l2_indev_deps="libv4l2"
2769 openal_indev_deps="openal"
2770 opengl_outdev_deps="opengl"
2771 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2772 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2773 pulse_indev_deps="libpulse"
2774 pulse_outdev_deps="libpulse"
2775 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2776 qtkit_indev_select="qtkit"
2777 sdl_outdev_deps="sdl"
2778 sndio_indev_deps="sndio_h"
2779 sndio_outdev_deps="sndio_h"
2780 v4l_indev_deps="linux_videodev_h"
2781 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2782 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2783 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2784 vfwcap_indev_extralibs="-lavicap32"
2785 x11grab_indev_deps="x11grab"
2786 x11grab_xcb_indev_deps="libxcb"
2787 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2788 xv_outdev_extralibs="-lXv -lX11 -lXext"
2789
2790 # protocols
2791 async_protocol_deps="threads"
2792 bluray_protocol_deps="libbluray"
2793 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2794 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2795 ffrtmpcrypt_protocol_select="tcp_protocol"
2796 ffrtmphttp_protocol_deps="!librtmp_protocol"
2797 ffrtmphttp_protocol_select="http_protocol"
2798 ftp_protocol_select="tcp_protocol"
2799 gopher_protocol_select="network"
2800 http_protocol_select="tcp_protocol"
2801 httpproxy_protocol_select="tcp_protocol"
2802 https_protocol_select="tls_protocol"
2803 icecast_protocol_select="http_protocol"
2804 librtmp_protocol_deps="librtmp"
2805 librtmpe_protocol_deps="librtmp"
2806 librtmps_protocol_deps="librtmp"
2807 librtmpt_protocol_deps="librtmp"
2808 librtmpte_protocol_deps="librtmp"
2809 libsmbclient_protocol_deps="libsmbclient gplv3"
2810 libssh_protocol_deps="libssh"
2811 mmsh_protocol_select="http_protocol"
2812 mmst_protocol_select="network"
2813 rtmp_protocol_deps="!librtmp_protocol"
2814 rtmp_protocol_select="tcp_protocol"
2815 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2816 rtmps_protocol_deps="!librtmp_protocol"
2817 rtmps_protocol_select="tls_protocol"
2818 rtmpt_protocol_select="ffrtmphttp_protocol"
2819 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2820 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2821 rtp_protocol_select="udp_protocol"
2822 sctp_protocol_deps="struct_sctp_event_subscribe"
2823 sctp_protocol_select="network"
2824 srtp_protocol_select="rtp_protocol"
2825 tcp_protocol_select="network"
2826 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2827 tls_gnutls_protocol_select="tcp_protocol"
2828 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2829 tls_openssl_protocol_select="tcp_protocol"
2830 tls_schannel_protocol_deps="schannel"
2831 tls_schannel_protocol_select="tcp_protocol"
2832 tls_securetransport_protocol_deps="securetransport"
2833 tls_securetransport_protocol_select="tcp_protocol"
2834 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2835 udp_protocol_select="network"
2836 udplite_protocol_select="network"
2837 unix_protocol_deps="sys_un_h"
2838 unix_protocol_select="network"
2839
2840 # filters
2841 afftfilt_filter_deps="avcodec"
2842 afftfilt_filter_select="fft"
2843 amovie_filter_deps="avcodec avformat"
2844 aresample_filter_deps="swresample"
2845 ass_filter_deps="libass"
2846 asyncts_filter_deps="avresample"
2847 atempo_filter_deps="avcodec"
2848 atempo_filter_select="rdft"
2849 azmq_filter_deps="libzmq"
2850 blackframe_filter_deps="gpl"
2851 boxblur_filter_deps="gpl"
2852 bs2b_filter_deps="libbs2b"
2853 colormatrix_filter_deps="gpl"
2854 cover_rect_filter_deps="avcodec avformat gpl"
2855 cropdetect_filter_deps="gpl"
2856 delogo_filter_deps="gpl"
2857 deshake_filter_select="pixelutils"
2858 drawtext_filter_deps="libfreetype"
2859 ebur128_filter_deps="gpl"
2860 eq_filter_deps="gpl"
2861 fftfilt_filter_deps="avcodec"
2862 fftfilt_filter_select="rdft"
2863 find_rect_filter_deps="avcodec avformat gpl"
2864 flite_filter_deps="libflite"
2865 frei0r_filter_deps="frei0r dlopen"
2866 frei0r_src_filter_deps="frei0r dlopen"
2867 fspp_filter_deps="gpl"
2868 geq_filter_deps="gpl"
2869 histeq_filter_deps="gpl"
2870 hqdn3d_filter_deps="gpl"
2871 interlace_filter_deps="gpl"
2872 kerndeint_filter_deps="gpl"
2873 ladspa_filter_deps="ladspa dlopen"
2874 mcdeint_filter_deps="avcodec gpl"
2875 movie_filter_deps="avcodec avformat"
2876 mpdecimate_filter_deps="gpl"
2877 mpdecimate_filter_select="pixelutils"
2878 mptestsrc_filter_deps="gpl"
2879 negate_filter_deps="lut_filter"
2880 nnedi_filter_deps="gpl"
2881 ocr_filter_deps="libtesseract"
2882 ocv_filter_deps="libopencv"
2883 owdenoise_filter_deps="gpl"
2884 pan_filter_deps="swresample"
2885 perspective_filter_deps="gpl"
2886 phase_filter_deps="gpl"
2887 pp7_filter_deps="gpl"
2888 pp_filter_deps="gpl postproc"
2889 pullup_filter_deps="gpl"
2890 removelogo_filter_deps="avcodec avformat swscale"
2891 repeatfields_filter_deps="gpl"
2892 resample_filter_deps="avresample"
2893 rubberband_filter_deps="librubberband"
2894 sab_filter_deps="gpl swscale"
2895 scale2ref_filter_deps="swscale"
2896 scale_filter_deps="swscale"
2897 select_filter_select="pixelutils"
2898 showcqt_filter_deps="avcodec avformat swscale"
2899 showcqt_filter_select="fft"
2900 showfreqs_filter_deps="avcodec"
2901 showfreqs_filter_select="fft"
2902 showspectrum_filter_deps="avcodec"
2903 showspectrum_filter_select="fft"
2904 showspectrumpic_filter_deps="avcodec"
2905 showspectrumpic_filter_select="fft"
2906 smartblur_filter_deps="gpl swscale"
2907 sofalizer_filter_deps="netcdf avcodec"
2908 sofalizer_filter_select="fft"
2909 spectrumsynth_filter_deps="avcodec"
2910 spectrumsynth_filter_select="fft"
2911 spp_filter_deps="gpl avcodec"
2912 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2913 stereo3d_filter_deps="gpl"
2914 subtitles_filter_deps="avformat avcodec libass"
2915 super2xsai_filter_deps="gpl"
2916 pixfmts_super2xsai_test_deps="super2xsai_filter"
2917 tinterlace_filter_deps="gpl"
2918 tinterlace_merge_test_deps="tinterlace_filter"
2919 tinterlace_pad_test_deps="tinterlace_filter"
2920 uspp_filter_deps="gpl avcodec"
2921 vidstabdetect_filter_deps="libvidstab"
2922 vidstabtransform_filter_deps="libvidstab"
2923 zmq_filter_deps="libzmq"
2924 zoompan_filter_deps="swscale"
2925 zscale_filter_deps="libzimg"
2926
2927 # examples
2928 avcodec_example_deps="avcodec avutil"
2929 avio_dir_cmd="avformat avutil"
2930 avio_reading="avformat avcodec avutil"
2931 decoding_encoding_example_deps="avcodec avformat avutil"
2932 demuxing_decoding_example_deps="avcodec avformat avutil"
2933 extract_mvs_example_deps="avcodec avformat avutil"
2934 filter_audio_example_deps="avfilter avutil"
2935 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2936 filtering_video_example_deps="avfilter avcodec avformat avutil"
2937 metadata_example_deps="avformat avutil"
2938 muxing_example_deps="avcodec avformat avutil swscale"
2939 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2940 remuxing_example_deps="avcodec avformat avutil"
2941 resampling_audio_example_deps="avutil swresample"
2942 scaling_video_example_deps="avutil swscale"
2943 transcode_aac_example_deps="avcodec avformat swresample"
2944 transcoding_example_deps="avfilter avcodec avformat avutil"
2945
2946 # libraries, in linking order
2947 avcodec_deps="avutil"
2948 avdevice_deps="avformat avcodec avutil"
2949 avfilter_deps="avutil"
2950 avformat_deps="avcodec avutil"
2951 avresample_deps="avutil"
2952 postproc_deps="avutil gpl"
2953 swresample_deps="avutil"
2954 swscale_deps="avutil"
2955
2956 # programs
2957 ffmpeg_deps="avcodec avfilter avformat swresample"
2958 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2959                null_filter
2960                setpts_filter trim_filter"
2961 ffplay_deps="avcodec avformat swscale swresample sdl"
2962 ffplay_libs='$sdl_libs'
2963 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2964 ffprobe_deps="avcodec avformat"
2965 ffserver_deps="avformat fork sarestart"
2966 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2967
2968 # documentation
2969 podpages_deps="perl"
2970 manpages_deps="perl pod2man"
2971 htmlpages_deps="perl"
2972 htmlpages_deps_any="makeinfo_html texi2html"
2973 txtpages_deps="perl makeinfo"
2974 doc_deps_any="manpages htmlpages podpages txtpages"
2975
2976 # default parameters
2977
2978 logfile="config.log"
2979
2980 # installation paths
2981 prefix_default="/usr/local"
2982 bindir_default='${prefix}/bin'
2983 datadir_default='${prefix}/share/ffmpeg'
2984 docdir_default='${prefix}/share/doc/ffmpeg'
2985 incdir_default='${prefix}/include'
2986 libdir_default='${prefix}/lib'
2987 mandir_default='${prefix}/share/man'
2988
2989 # toolchain
2990 ar_default="ar"
2991 cc_default="gcc"
2992 cxx_default="g++"
2993 host_cc_default="gcc"
2994 cp_f="cp -f"
2995 doxygen_default="doxygen"
2996 install="install"
2997 ln_s="ln -s -f"
2998 nm_default="nm -g"
2999 objformat="elf"
3000 pkg_config_default=pkg-config
3001 ranlib_default="ranlib"
3002 strip_default="strip"
3003 yasmexe_default="yasm"
3004 windres_default="windres"
3005
3006 # OS
3007 target_os_default=$(tolower $(uname -s))
3008 host_os=$target_os_default
3009
3010 # machine
3011 if test "$target_os_default" = aix; then
3012     arch_default=$(uname -p)
3013     strip_default="strip -X32_64"
3014 else
3015     arch_default=$(uname -m)
3016 fi
3017 cpu="generic"
3018 intrinsics="none"
3019
3020 # configurable options
3021 enable $PROGRAM_LIST
3022 enable $DOCUMENT_LIST
3023 enable $EXAMPLE_LIST
3024 enable $(filter_out avresample $LIBRARY_LIST)
3025 enable stripping
3026
3027 enable asm
3028 enable debug
3029 enable doc
3030 enable faan faandct faanidct
3031 enable optimizations
3032 enable runtime_cpudetect
3033 enable safe_bitstream_reader
3034 enable static
3035 enable swscale_alpha
3036 enable valgrind_backtrace
3037
3038 sws_max_filter_size_default=256
3039 set_default sws_max_filter_size
3040
3041 # Enable hwaccels by default.
3042 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3043 enable xlib
3044
3045 # build settings
3046 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3047 LIBPREF="lib"
3048 LIBSUF=".a"
3049 FULLNAME='$(NAME)$(BUILDSUF)'
3050 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3051 SLIBPREF="lib"
3052 SLIBSUF=".so"
3053 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3054 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3055 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3056 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3057 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3058 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3059
3060 asflags_filter=echo
3061 cflags_filter=echo
3062 ldflags_filter=echo
3063
3064 AS_C='-c'
3065 AS_O='-o $@'
3066 CC_C='-c'
3067 CC_E='-E -o $@'
3068 CC_O='-o $@'
3069 CXX_C='-c'
3070 CXX_O='-o $@'
3071 OBJCC_C='-c'
3072 OBJCC_E='-E -o $@'
3073 OBJCC_O='-o $@'
3074 LD_O='-o $@'
3075 LD_LIB='-l%'
3076 LD_PATH='-L'
3077 HOSTCC_C='-c'
3078 HOSTCC_E='-E -o $@'
3079 HOSTCC_O='-o $@'
3080 HOSTLD_O='-o $@'
3081
3082 host_libs='-lm'
3083 host_cflags_filter=echo
3084 host_ldflags_filter=echo
3085
3086 target_path='$(CURDIR)'
3087
3088 # since the object filename is not given with the -MM flag, the compiler
3089 # is only able to print the basename, and we must add the path ourselves
3090 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3091 DEPFLAGS='-MM'
3092
3093 # find source path
3094 if test -f configure; then
3095     source_path=.
3096 else
3097     source_path=$(cd $(dirname "$0"); pwd)
3098     case "$source_path" in
3099         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3100     esac
3101     test -e "$source_path/config.h" &&
3102         die "Out of tree builds are impossible with config.h in source dir."
3103 fi
3104
3105 for v in "$@"; do
3106     r=${v#*=}
3107     l=${v%"$r"}
3108     r=$(sh_quote "$r")
3109     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3110 done
3111
3112 find_things(){
3113     thing=$1
3114     pattern=$2
3115     file=$source_path/$3
3116     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3117 }
3118
3119 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3120 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3121 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3122 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3123 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3124 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3125 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3126 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3127 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3128 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3129 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3130
3131 ALL_COMPONENTS="
3132     $BSF_LIST
3133     $DECODER_LIST
3134     $DEMUXER_LIST
3135     $ENCODER_LIST
3136     $FILTER_LIST
3137     $HWACCEL_LIST
3138     $INDEV_LIST
3139     $MUXER_LIST
3140     $OUTDEV_LIST
3141     $PARSER_LIST
3142     $PROTOCOL_LIST
3143 "
3144
3145 for n in $COMPONENT_LIST; do
3146     v=$(toupper ${n%s})_LIST
3147     eval enable \$$v
3148     eval ${n}_if_any="\$$v"
3149 done
3150
3151 enable $ARCH_EXT_LIST
3152
3153 die_unknown(){
3154     echo "Unknown option \"$1\"."
3155     echo "See $0 --help for available options."
3156     exit 1
3157 }
3158
3159 print_in_columns() {
3160     cols=$(expr $ncols / 24)
3161     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3162 }
3163
3164 show_list() {
3165     suffix=_$1
3166     shift
3167     echo $* | sed s/$suffix//g | print_in_columns
3168     exit 0
3169 }
3170
3171 rand_list(){
3172     IFS=', '
3173     set -- $*
3174     unset IFS
3175     for thing; do
3176         comp=${thing%:*}
3177         prob=${thing#$comp}
3178         prob=${prob#:}
3179         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3180         echo "prob ${prob:-0.5}"
3181         printf '%s\n' $comp
3182     done
3183 }
3184
3185 do_random(){
3186     action=$1
3187     shift
3188     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3189     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3190 }
3191
3192 for opt do
3193     optval="${opt#*=}"
3194     case "$opt" in
3195         --extra-ldflags=*)
3196             add_ldflags $optval
3197         ;;
3198         --extra-ldexeflags=*)
3199             add_ldexeflags $optval
3200         ;;
3201         --extra-ldlibflags=*)
3202             add_ldlibflags $optval
3203         ;;
3204         --extra-libs=*)
3205             add_extralibs $optval
3206         ;;
3207         --disable-devices)
3208             disable $INDEV_LIST $OUTDEV_LIST
3209         ;;
3210         --enable-debug=*)
3211             debuglevel="$optval"
3212         ;;
3213         --disable-programs)
3214             disable $PROGRAM_LIST
3215         ;;
3216         --disable-everything)
3217             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3218         ;;
3219         --disable-all)
3220             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3221             disable $LIBRARY_LIST $PROGRAM_LIST doc
3222             enable avutil
3223         ;;
3224         --enable-random|--disable-random)
3225             action=${opt%%-random}
3226             do_random ${action#--} $COMPONENT_LIST
3227         ;;
3228         --enable-random=*|--disable-random=*)
3229             action=${opt%%-random=*}
3230             do_random ${action#--} $optval
3231         ;;
3232         --enable-*=*|--disable-*=*)
3233             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3234             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3235             eval list=\$$(toupper $thing)_LIST
3236             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3237             list=$(filter "$name" $list)
3238             [ "$list" = "" ] && warn "Option $opt did not match anything"
3239             $action $list
3240         ;;
3241         --enable-?*|--disable-?*)
3242             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3243             if is_in $option $COMPONENT_LIST; then
3244                 test $action = disable && action=unset
3245                 eval $action \$$(toupper ${option%s})_LIST
3246             elif is_in $option $CMDLINE_SELECT; then
3247                 $action $option
3248             else
3249                 die_unknown $opt
3250             fi
3251         ;;
3252         --list-*)
3253             NAME="${opt#--list-}"
3254             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3255             NAME=${NAME%s}
3256             eval show_list $NAME \$$(toupper $NAME)_LIST
3257         ;;
3258         --help|-h) show_help
3259         ;;
3260         --fatal-warnings) enable fatal_warnings
3261         ;;
3262         *)
3263             optname="${opt%%=*}"
3264             optname="${optname#--}"
3265             optname=$(echo "$optname" | sed 's/-/_/g')
3266             if is_in $optname $CMDLINE_SET; then
3267                 eval $optname='$optval'
3268             elif is_in $optname $CMDLINE_APPEND; then
3269                 append $optname "$optval"
3270             else
3271                 die_unknown $opt
3272             fi
3273         ;;
3274     esac
3275 done
3276
3277 for e in $env; do
3278     eval "export $e"
3279 done
3280
3281 disabled logging && logfile=/dev/null
3282
3283 # Disable all the library-specific components if the library itself
3284 # is disabled, see AVCODEC_LIST and following _LIST variables.
3285
3286 disable_components(){
3287     disabled ${1} && disable $(
3288         eval components="\$$(toupper ${1})_COMPONENTS"
3289         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3290     )
3291 }
3292
3293 map 'disable_components $v' $LIBRARY_LIST
3294
3295 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3296 set >> $logfile
3297
3298 test -n "$valgrind" && toolchain="valgrind-memcheck"
3299
3300 case "$toolchain" in
3301     *-asan)
3302         cc_default="${toolchain%-asan}"
3303         add_cflags  -fsanitize=address
3304         add_ldflags -fsanitize=address
3305     ;;
3306     *-tsan)
3307         cc_default="${toolchain%-tsan}"
3308         add_cflags  -fsanitize=thread -pie
3309         add_ldflags -fsanitize=thread -pie
3310         case "$toolchain" in
3311             gcc-tsan)
3312                 add_cflags  -fPIC
3313                 add_ldflags -fPIC
3314                 ;;
3315         esac
3316     ;;
3317     *-usan)
3318         cc_default="${toolchain%-usan}"
3319         add_cflags  -fsanitize=undefined
3320         add_ldflags -fsanitize=undefined
3321     ;;
3322     valgrind-*)
3323         target_exec_default="valgrind"
3324         case "$toolchain" in
3325             valgrind-massif)
3326                 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"
3327                 ;;
3328             valgrind-memcheck)
3329                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3330                 ;;
3331         esac
3332     ;;
3333     msvc)
3334         # Check whether the current MSVC version needs the C99 converter.
3335         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3336         # support enough of C99 to build ffmpeg. Default to the new
3337         # behaviour if the regexp was unable to match anything, since this
3338         # successfully parses the version number of existing supported
3339         # versions that require the converter (MSVC 2010 and 2012).
3340         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3341         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3342             cc_default="cl"
3343         else
3344             cc_default="c99wrap cl"
3345         fi
3346         ld_default="$source_path/compat/windows/mslink"
3347         nm_default="dumpbin -symbols"
3348         ar_default="lib"
3349         case "$arch" in
3350         arm*)
3351             as_default="armasm"
3352             ;;
3353         esac
3354         target_os_default="win32"
3355         # Use a relative path for TMPDIR. This makes sure all the
3356         # ffconf temp files are written with a relative path, avoiding
3357         # issues with msys/win32 path conversion for MSVC parameters
3358         # such as -Fo<file> or -out:<file>.
3359         TMPDIR=.
3360     ;;
3361     icl)
3362         cc_default="icl"
3363         ld_default="xilink"
3364         nm_default="dumpbin -symbols"
3365         ar_default="xilib"
3366         target_os_default="win32"
3367         TMPDIR=.
3368     ;;
3369     gcov)
3370         add_cflags  -fprofile-arcs -ftest-coverage
3371         add_ldflags -fprofile-arcs -ftest-coverage
3372     ;;
3373     hardened)
3374         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3375         add_cflags   -fno-strict-overflow -fstack-protector-all
3376         add_ldflags  -Wl,-z,relro -Wl,-z,now
3377     ;;
3378     ?*)
3379         die "Unknown toolchain $toolchain"
3380     ;;
3381 esac
3382
3383 test -n "$cross_prefix" && enable cross_compile
3384
3385 if enabled cross_compile; then
3386     test -n "$arch" && test -n "$target_os" ||
3387         die "Must specify target arch and OS when cross-compiling"
3388 fi
3389
3390 ar_default="${cross_prefix}${ar_default}"
3391 cc_default="${cross_prefix}${cc_default}"
3392 cxx_default="${cross_prefix}${cxx_default}"
3393 nm_default="${cross_prefix}${nm_default}"
3394 pkg_config_default="${cross_prefix}${pkg_config_default}"
3395 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3396     ranlib_default="${cross_prefix}${ranlib_default} -D"
3397 else
3398     ranlib_default="${cross_prefix}${ranlib_default}"
3399 fi
3400 strip_default="${cross_prefix}${strip_default}"
3401 windres_default="${cross_prefix}${windres_default}"
3402
3403 sysinclude_default="${sysroot}/usr/include"
3404
3405 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3406     target_exec target_os yasmexe
3407 enabled cross_compile || host_cc_default=$cc
3408 set_default host_cc
3409
3410 pkg_config_fail_message=""
3411 if ! $pkg_config --version >/dev/null 2>&1; then
3412     warn "$pkg_config not found, library detection may fail."
3413     pkg_config=false
3414 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3415     pkg_config_fail_message="
3416 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3417 fi
3418
3419 if test $doxygen != $doxygen_default && \
3420   ! $doxygen --version >/dev/null 2>&1; then
3421     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3422 fi
3423
3424 exesuf() {
3425     case $1 in
3426         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3427     esac
3428 }
3429
3430 EXESUF=$(exesuf $target_os)
3431 HOSTEXESUF=$(exesuf $host_os)
3432
3433 # set temporary file name
3434 : ${TMPDIR:=$TEMPDIR}
3435 : ${TMPDIR:=$TMP}
3436 : ${TMPDIR:=/tmp}
3437
3438 if [ -n "$tempprefix" ] ; then
3439     mktemp(){
3440         echo $tempprefix.${HOSTNAME}.${UID}
3441     }
3442 elif ! check_cmd mktemp -u XXXXXX; then
3443     # simple replacement for missing mktemp
3444     # NOT SAFE FOR GENERAL USE
3445     mktemp(){
3446         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3447     }
3448 fi
3449
3450 tmpfile(){
3451     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3452         (set -C; exec > $tmp) 2>/dev/null ||
3453         die "Unable to create temporary file in $TMPDIR."
3454     append TMPFILES $tmp
3455     eval $1=$tmp
3456 }
3457
3458 trap 'rm -f -- $TMPFILES' EXIT
3459
3460 tmpfile TMPASM .asm
3461 tmpfile TMPC   .c
3462 tmpfile TMPCPP .cpp
3463 tmpfile TMPE   $EXESUF
3464 tmpfile TMPH   .h
3465 tmpfile TMPM   .m
3466 tmpfile TMPO   .o
3467 tmpfile TMPS   .S
3468 tmpfile TMPSH  .sh
3469 tmpfile TMPV   .ver
3470
3471 unset -f mktemp
3472
3473 chmod +x $TMPE
3474
3475 # make sure we can execute files in $TMPDIR
3476 cat > $TMPSH 2>> $logfile <<EOF
3477 #! /bin/sh
3478 EOF
3479 chmod +x $TMPSH >> $logfile 2>&1
3480 if ! $TMPSH >> $logfile 2>&1; then
3481     cat <<EOF
3482 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3483 variable to another directory and make sure that it is not mounted noexec.
3484 EOF
3485     die "Sanity test failed."
3486 fi
3487
3488 armasm_flags(){
3489     for flag; do
3490         case $flag in
3491             # Filter out MSVC cl.exe options from cflags that shouldn't
3492             # be passed to gas-preprocessor
3493             -M[TD]*)                                            ;;
3494             *)                  echo $flag                      ;;
3495         esac
3496    done
3497 }
3498
3499 ccc_flags(){
3500     for flag; do
3501         case $flag in
3502             -std=c99)           echo -c99                       ;;
3503             -mcpu=*)            echo -arch ${flag#*=}           ;;
3504             -mieee)             echo -ieee                      ;;
3505             -O*|-fast)          echo $flag                      ;;
3506             -fno-math-errno)    echo -assume nomath_errno       ;;
3507             -g)                 echo -g3                        ;;
3508             -Wall)              echo -msg_enable level2         ;;
3509             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3510             -Wl,*)              echo $flag                      ;;
3511             -f*|-W*)                                            ;;
3512             *)                  echo $flag                      ;;
3513         esac
3514    done
3515 }
3516
3517 cparser_flags(){
3518     for flag; do
3519         case $flag in
3520             -Wno-switch)             echo -Wno-switch-enum ;;
3521             -Wno-format-zero-length) ;;
3522             -Wdisabled-optimization) ;;
3523             -Wno-pointer-sign)       echo -Wno-other ;;
3524             *)                       echo $flag ;;
3525         esac
3526     done
3527 }
3528
3529 msvc_common_flags(){
3530     for flag; do
3531         case $flag in
3532             # In addition to specifying certain flags under the compiler
3533             # specific filters, they must be specified here as well or else the
3534             # generic catch all at the bottom will print the original flag.
3535             -Wall)                ;;
3536             -std=c99)             ;;
3537             # Common flags
3538             -fomit-frame-pointer) ;;
3539             -g)                   echo -Z7 ;;
3540             -fno-math-errno)      ;;
3541             -fno-common)          ;;
3542             -fno-signed-zeros)    ;;
3543             -fPIC)                ;;
3544             -mthumb)              ;;
3545             -march=*)             ;;
3546             -lz)                  echo zlib.lib ;;
3547             -lavifil32)           echo vfw32.lib ;;
3548             -lavicap32)           echo vfw32.lib user32.lib ;;
3549             -lx264)               echo libx264.lib ;;
3550             -l*)                  echo ${flag#-l}.lib ;;
3551             -LARGEADDRESSAWARE)   echo $flag ;;
3552             -L*)                  echo -libpath:${flag#-L} ;;
3553             *)                    echo $flag ;;
3554         esac
3555     done
3556 }
3557
3558 msvc_flags(){
3559     msvc_common_flags "$@"
3560     for flag; do
3561         case $flag in
3562             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3563                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3564                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3565                                        -wd4307 \
3566                                        -wd4273 -wd4554 -wd4701 ;;
3567         esac
3568     done
3569 }
3570
3571 icl_flags(){
3572     msvc_common_flags "$@"
3573     for flag; do
3574         case $flag in
3575             # Despite what Intel's documentation says -Wall, which is supported
3576             # on Windows, does enable remarks so disable them here.
3577             -Wall)                echo $flag -Qdiag-disable:remark ;;
3578             -std=c99)             echo -Qstd=c99 ;;
3579             -flto)                echo -ipo ;;
3580         esac
3581     done
3582 }
3583
3584 icc_flags(){
3585     for flag; do
3586         case $flag in
3587             -flto)                echo -ipo ;;
3588             *)                    echo $flag ;;
3589         esac
3590     done
3591 }
3592
3593 pgi_flags(){
3594     for flag; do
3595         case $flag in
3596             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3597             -fomit-frame-pointer) echo -Mnoframe ;;
3598             -g)                   echo -gopt ;;
3599             *)                    echo $flag ;;
3600         esac
3601     done
3602 }
3603
3604 suncc_flags(){
3605     for flag; do
3606         case $flag in
3607             -march=*|-mcpu=*)
3608                 case "${flag#*=}" in
3609                     native)                   echo -xtarget=native       ;;
3610                     v9|niagara)               echo -xarch=sparc          ;;
3611                     ultrasparc)               echo -xarch=sparcvis       ;;
3612                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3613                     i586|pentium)             echo -xchip=pentium        ;;
3614                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3615                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3616                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3617                     pentium4*)          echo -xtarget=pentium4           ;;
3618                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3619                     *-sse3)             echo -xarch=sse3                 ;;
3620                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3621                     bonnell)                   echo -xarch=ssse3         ;;
3622                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3623                     westmere)                  echo -xtarget=westmere    ;;
3624                     silvermont)                echo -xarch=sse4_2        ;;
3625                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3626                     core-avx*|ivybridge|haswell|broadwell)
3627                                                echo -xarch=avx           ;;
3628                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3629                     btver1)                    echo -xarch=amdsse4a      ;;
3630                     btver2|bdver*)             echo -xarch=avx           ;;
3631                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3632                     k8|opteron|athlon64|athlon-fx)
3633                                                echo -xarch=sse2a         ;;
3634                     athlon*)                   echo -xarch=pentium_proa  ;;
3635                 esac
3636                 ;;
3637             -std=c99)             echo -xc99              ;;
3638             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3639             -fPIC)                echo -KPIC -xcode=pic32 ;;
3640             -W*,*)                echo $flag              ;;
3641             -f*-*|-W*|-mimpure-text)                      ;;
3642             -shared)              echo -G                 ;;
3643             *)                    echo $flag              ;;
3644         esac
3645     done
3646 }
3647
3648 tms470_flags(){
3649     for flag; do
3650         case $flag in
3651             -march=*|-mcpu=*)
3652                 case "${flag#*=}" in
3653                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3654                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3655                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3656                     armv6*|arm11*)          echo -mv=6   ;;
3657                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3658                                             echo -mv=5e  ;;
3659                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3660                 esac
3661                 ;;
3662             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3663             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3664             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3665             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3666             -msoft-float)   echo --float_support=vfplib       ;;
3667             -O[0-3]|-mf=*)  echo $flag                        ;;
3668             -g)             echo -g -mn                       ;;
3669             -pds=*)         echo $flag                        ;;
3670             -D*|-I*)        echo $flag                        ;;
3671             --gcc|--abi=*)  echo $flag                        ;;
3672             -me)            echo $flag                        ;;
3673         esac
3674     done
3675 }
3676
3677 probe_cc(){
3678     pfx=$1
3679     _cc=$2
3680     first=$3
3681
3682     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3683     unset _ld_o _ldflags _ld_lib _ld_path
3684     unset _depflags _DEPCMD _DEPFLAGS
3685     _flags_filter=echo
3686
3687     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3688         true # no-op to avoid reading stdin in following checks
3689     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3690         _type=llvm_gcc
3691         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3692         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3693         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3694         _cflags_speed='-O3'
3695         _cflags_size='-Os'
3696     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3697         _type=gcc
3698         gcc_version=$($_cc --version | head -n1)
3699         gcc_basever=$($_cc -dumpversion)
3700         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3701         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3702         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3703         case $gcc_basever in
3704             2) ;;
3705             2.*) ;;
3706             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3707         esac
3708         if [ "$first" = true ]; then
3709             case $gcc_basever in
3710                 4.2*)
3711                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3712             esac
3713         fi
3714         _cflags_speed='-O3'
3715         _cflags_size='-Os'
3716     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3717         _type=icc
3718         _ident=$($_cc --version | head -n1)
3719         _depflags='-MMD'
3720         _cflags_speed='-O3'
3721         _cflags_size='-Os'
3722         _cflags_noopt='-O1'
3723         _flags_filter=icc_flags
3724     elif $_cc -v 2>&1 | grep -q xlc; then
3725         _type=xlc
3726         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3727         _cflags_speed='-O5'
3728         _cflags_size='-O5 -qcompact'
3729     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3730         _type=ccc
3731         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3732         _DEPFLAGS='-M'
3733         _cflags_speed='-fast'
3734         _cflags_size='-O1'
3735         _flags_filter=ccc_flags
3736     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3737         test -d "$sysroot" || die "No valid sysroot specified."
3738         _type=armcc
3739         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3740         armcc_conf="$PWD/armcc.conf"
3741         $_cc --arm_linux_configure                 \
3742              --arm_linux_config_file="$armcc_conf" \
3743              --configure_sysroot="$sysroot"        \
3744              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3745              die "Error creating armcc configuration file."
3746         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3747         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3748         as_default="${cross_prefix}gcc"
3749         _depflags='-MMD'
3750         _cflags_speed='-O3'
3751         _cflags_size='-Os'
3752     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3753         _type=tms470
3754         _ident=$($_cc -version | head -n1 | tr -s ' ')
3755         _flags='--gcc --abi=eabi -me'
3756         _cc_e='-ppl -fe=$@'
3757         _cc_o='-fe=$@'
3758         _depflags='-ppa -ppd=$(@:.o=.d)'
3759         _cflags_speed='-O3 -mf=5'
3760         _cflags_size='-O3 -mf=2'
3761         _flags_filter=tms470_flags
3762     elif $_cc -v 2>&1 | grep -q clang; then
3763         _type=clang
3764         _ident=$($_cc --version 2>/dev/null | head -n1)
3765         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3766         _cflags_speed='-O3'
3767         _cflags_size='-Os'
3768     elif $_cc -V 2>&1 | grep -q Sun; then
3769         _type=suncc
3770         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3771         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3772         _DEPFLAGS='-xM1 -xc99'
3773         _ldflags='-std=c99'
3774         _cflags_speed='-O5'
3775         _cflags_size='-O5 -xspace'
3776         _flags_filter=suncc_flags
3777     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3778         _type=pathscale
3779         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3780         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3781         _cflags_speed='-O2'
3782         _cflags_size='-Os'
3783         _flags_filter='filter_out -Wdisabled-optimization'
3784     elif $_cc -v 2>&1 | grep -q Open64; then
3785         _type=open64
3786         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3787         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3788         _cflags_speed='-O2'
3789         _cflags_size='-Os'
3790         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3791     elif $_cc -V 2>&1 | grep -q Portland; then
3792         _type=pgi
3793         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3794         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3795         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3796         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3797         _cflags_noopt="-O"
3798         _flags_filter=pgi_flags
3799     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3800         _type=armasm
3801         _ident=$($_cc | head -n1)
3802         # 4509: "This form of conditional instruction is deprecated"
3803         _flags="-nologo -ignore 4509"
3804         _flags_filter=armasm_flags
3805     elif $_cc 2>&1 | grep -q Intel; then
3806         _type=icl
3807         _ident=$($_cc 2>&1 | head -n1)
3808         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3809         # Not only is O3 broken on 13.x+ but it is slower on all previous
3810         # versions (tested) as well.
3811         _cflags_speed="-O2"
3812         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3813         if $_cc 2>&1 | grep -q Linker; then
3814             _ld_o='-out:$@'
3815         else
3816             _ld_o='-Fe$@'
3817         fi
3818         _cc_o='-Fo$@'
3819         _cc_e='-P'
3820         _flags_filter=icl_flags
3821         _ld_lib='lib%.a'
3822         _ld_path='-libpath:'
3823         # -Qdiag-error to make icl error when seeing certain unknown arguments
3824         _flags='-nologo -Qdiag-error:4044,10157'
3825         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3826         # with MSVC which enables it by default.
3827         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3828         disable stripping
3829     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3830         _type=msvc
3831         _ident=$($_cc 2>&1 | head -n1)
3832         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3833         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3834         _cflags_speed="-O2"
3835         _cflags_size="-O1"
3836         if $_cc -nologo- 2>&1 | grep -q Linker; then
3837             _ld_o='-out:$@'
3838         else
3839             _ld_o='-Fe$@'
3840         fi
3841         _cc_o='-Fo$@'
3842         _cc_e='-P -Fi$@'
3843         _flags_filter=msvc_flags
3844         _ld_lib='lib%.a'
3845         _ld_path='-libpath:'
3846         _flags='-nologo'
3847         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3848         disable stripping
3849     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3850         _type=cparser
3851         _ident=$($_cc --version | head -n1)
3852         _depflags='-MMD'
3853         _cflags_speed='-O4'
3854         _cflags_size='-O2'
3855         _flags_filter=cparser_flags
3856     fi
3857
3858     eval ${pfx}_type=\$_type
3859     eval ${pfx}_ident=\$_ident
3860 }
3861
3862 set_ccvars(){
3863     eval ${1}_C=\${_cc_c-\${${1}_C}}
3864     eval ${1}_E=\${_cc_e-\${${1}_E}}
3865     eval ${1}_O=\${_cc_o-\${${1}_O}}
3866
3867     if [ -n "$_depflags" ]; then
3868         eval ${1}_DEPFLAGS=\$_depflags
3869     else
3870         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3871         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3872         eval DEP${1}FLAGS=\$_flags
3873     fi
3874 }
3875
3876 probe_cc cc "$cc" "true"
3877 cflags_filter=$_flags_filter
3878 cflags_speed=$_cflags_speed
3879 cflags_size=$_cflags_size
3880 cflags_noopt=$_cflags_noopt
3881 add_cflags $_flags $_cflags
3882 cc_ldflags=$_ldflags
3883 set_ccvars CC
3884
3885 probe_cc hostcc "$host_cc"
3886 host_cflags_filter=$_flags_filter
3887 add_host_cflags  $_flags $_cflags
3888 set_ccvars HOSTCC
3889
3890 test -n "$cc_type" && enable $cc_type ||
3891     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3892
3893 : ${as_default:=$cc}
3894 : ${objcc_default:=$cc}
3895 : ${dep_cc_default:=$cc}
3896 : ${ld_default:=$cc}
3897 : ${host_ld_default:=$host_cc}
3898 set_default ar as objcc dep_cc ld host_ld windres
3899
3900 probe_cc as "$as"
3901 asflags_filter=$_flags_filter
3902 add_asflags $_flags $_cflags
3903 set_ccvars AS
3904
3905 probe_cc objcc "$objcc"
3906 objcflags_filter=$_flags_filter
3907 add_objcflags $_flags $_cflags
3908 set_ccvars OBJC
3909
3910 probe_cc ld "$ld"
3911 ldflags_filter=$_flags_filter
3912 add_ldflags $_flags $_ldflags
3913 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3914 LD_O=${_ld_o-$LD_O}
3915 LD_LIB=${_ld_lib-$LD_LIB}
3916 LD_PATH=${_ld_path-$LD_PATH}
3917
3918 probe_cc hostld "$host_ld"
3919 host_ldflags_filter=$_flags_filter
3920 add_host_ldflags $_flags $_ldflags
3921 HOSTLD_O=${_ld_o-$HOSTLD_O}
3922
3923 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3924     probe_cc depcc "$dep_cc"
3925     CCDEP=${_DEPCMD:-$DEPCMD}
3926     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3927     DEPCCFLAGS=$_flags
3928 fi
3929
3930 if $ar 2>&1 | grep -q Microsoft; then
3931     arflags="-nologo"
3932     ar_o='-out:$@'
3933 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3934     arflags="rq"
3935     ar_o='$@'
3936 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3937     arflags='-Xany -r -c'
3938     ar_o='$@'
3939 elif $ar 2>&1 | grep -q "\[D\] "; then
3940     arflags="rcD"
3941     ar_o='$@'
3942 else
3943     arflags="rc"
3944     ar_o='$@'
3945 fi
3946
3947 add_cflags $extra_cflags
3948 add_cxxflags $extra_cxxflags
3949 add_objcflags $extra_objcflags
3950 add_asflags $extra_cflags
3951
3952 if test -n "$sysroot"; then
3953     case "$cc_type" in
3954         gcc|llvm_gcc|clang)
3955             add_cppflags --sysroot="$sysroot"
3956             add_ldflags --sysroot="$sysroot"
3957 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3958             add_cppflags -isysroot "$sysroot"
3959             add_ldflags -isysroot "$sysroot"
3960         ;;
3961         tms470)
3962             add_cppflags -I"$sysinclude"
3963             add_ldflags  --sysroot="$sysroot"
3964         ;;
3965     esac
3966 fi
3967
3968 if test "$cpu" = host; then
3969     enabled cross_compile &&
3970         die "--cpu=host makes no sense when cross-compiling."
3971
3972     case "$cc_type" in
3973         gcc|llvm_gcc)
3974             check_native(){
3975                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3976                 sed -n "/cc1.*$1=/{
3977                             s/.*$1=\\([^ ]*\\).*/\\1/
3978                             p
3979                             q
3980                         }" $TMPE
3981             }
3982             cpu=$(check_native -march || check_native -mcpu)
3983         ;;
3984         clang)
3985             check_native(){
3986                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3987                 sed -n "/cc1.*-target-cpu /{
3988                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
3989                             p
3990                             q
3991                         }" $TMPE
3992             }
3993             cpu=$(check_native -march)
3994         ;;
3995     esac
3996
3997     test "${cpu:-host}" = host &&
3998         die "--cpu=host not supported with compiler $cc"
3999 fi
4000
4001 # Deal with common $arch aliases
4002 case "$arch" in
4003     aarch64|arm64)
4004         arch="aarch64"
4005     ;;
4006     arm*|iPad*|iPhone*)
4007         arch="arm"
4008     ;;
4009     mips*|IP*)
4010         case "$arch" in
4011         *el)
4012             add_cppflags -EL
4013             add_ldflags -EL
4014         ;;
4015         *eb)
4016             add_cppflags -EB
4017             add_ldflags -EB
4018         ;;
4019         esac
4020         arch="mips"
4021     ;;
4022     parisc*|hppa*)
4023         arch="parisc"
4024     ;;
4025     "Power Macintosh"|ppc*|powerpc*)
4026         arch="ppc"
4027     ;;
4028     s390|s390x)
4029         arch="s390"
4030     ;;
4031     sh4|sh)
4032         arch="sh4"
4033     ;;
4034     sun4u|sparc*)
4035         arch="sparc"
4036     ;;
4037     tilegx|tile-gx)
4038         arch="tilegx"
4039     ;;
4040     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4041         arch="x86"
4042     ;;
4043 esac
4044
4045 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4046 enable $arch
4047
4048 # Add processor-specific flags
4049 if enabled aarch64; then
4050
4051     case $cpu in
4052         armv*)
4053             cpuflags="-march=$cpu"
4054         ;;
4055         *)
4056             cpuflags="-mcpu=$cpu"
4057         ;;
4058     esac
4059
4060 elif enabled alpha; then
4061
4062     cpuflags="-mcpu=$cpu"
4063
4064 elif enabled arm; then
4065
4066     check_arm_arch() {
4067         check_cpp_condition stddef.h \
4068             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4069             $cpuflags
4070     }
4071
4072     probe_arm_arch() {
4073         if   check_arm_arch 4;        then echo armv4;
4074         elif check_arm_arch 4T;       then echo armv4t;
4075         elif check_arm_arch 5;        then echo armv5;
4076         elif check_arm_arch 5E;       then echo armv5e;
4077         elif check_arm_arch 5T;       then echo armv5t;
4078         elif check_arm_arch 5TE;      then echo armv5te;
4079         elif check_arm_arch 5TEJ;     then echo armv5te;
4080         elif check_arm_arch 6;        then echo armv6;
4081         elif check_arm_arch 6J;       then echo armv6j;
4082         elif check_arm_arch 6K;       then echo armv6k;
4083         elif check_arm_arch 6Z;       then echo armv6z;
4084         elif check_arm_arch 6ZK;      then echo armv6zk;
4085         elif check_arm_arch 6T2;      then echo armv6t2;
4086         elif check_arm_arch 7;        then echo armv7;
4087         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4088         elif check_arm_arch 7S;       then echo armv7-a;
4089         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4090         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4091         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4092         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4093         fi
4094     }
4095
4096     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4097
4098     case $cpu in
4099         armv*)
4100             cpuflags="-march=$cpu"
4101             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4102         ;;
4103         *)
4104             cpuflags="-mcpu=$cpu"
4105             case $cpu in
4106                 cortex-a*)                               subarch=armv7a  ;;
4107                 cortex-r*)                               subarch=armv7r  ;;
4108                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4109                 arm11*)                                  subarch=armv6   ;;
4110                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4111                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4112                 *)                             subarch=$(probe_arm_arch) ;;
4113             esac
4114         ;;
4115     esac
4116
4117     case "$subarch" in
4118         armv5t*)    enable fast_clz                ;;
4119         armv[6-8]*)
4120             enable fast_clz
4121             disabled fast_unaligned || enable fast_unaligned
4122             ;;
4123     esac
4124
4125 elif enabled avr32; then
4126
4127     case $cpu in
4128         ap7[02]0[0-2])
4129             subarch="avr32_ap"
4130             cpuflags="-mpart=$cpu"
4131         ;;
4132         ap)
4133             subarch="avr32_ap"
4134             cpuflags="-march=$cpu"
4135         ;;
4136         uc3[ab]*)
4137             subarch="avr32_uc"
4138             cpuflags="-mcpu=$cpu"
4139         ;;
4140         uc)
4141             subarch="avr32_uc"
4142             cpuflags="-march=$cpu"
4143         ;;
4144     esac
4145
4146 elif enabled bfin; then
4147
4148     cpuflags="-mcpu=$cpu"
4149
4150 elif enabled mips; then
4151
4152     cpuflags="-march=$cpu"
4153
4154     case $cpu in
4155         24kc)
4156             disable mips32r6
4157             disable mips64r2
4158             disable mips64r6
4159             disable mipsfpu
4160             disable mipsdsp
4161             disable mipsdspr2
4162             disable msa
4163         ;;
4164         24kf*)
4165             disable mips32r6
4166             disable mips64r2
4167             disable mips64r6
4168             disable mipsdsp
4169             disable mipsdspr2
4170             disable msa
4171         ;;
4172         24kec|34kc|1004kc)
4173             disable mips32r6
4174             disable mips64r2
4175             disable mips64r6
4176             disable mipsfpu
4177             disable mipsdspr2
4178             disable msa
4179         ;;
4180         24kef*|34kf*|1004kf*)
4181             disable mips32r6
4182             disable mips64r2
4183             disable mips64r6
4184             disable mipsdspr2
4185             disable msa
4186         ;;
4187         74kc)
4188             disable mips32r6
4189             disable mips64r2
4190             disable mips64r6
4191             disable mipsfpu
4192             disable msa
4193         ;;
4194         74kf)
4195             disable mips32r6
4196             disable mips64r2
4197             disable mips64r6
4198             disable msa
4199         ;;
4200         p5600)
4201             disable mips32r6
4202             disable mips64r2
4203             disable mips64r6
4204             disable mipsdsp
4205             disable mipsdspr2
4206             check_cflags "-mtune=p5600" &&
4207             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4208             add_asflags "-mfp64"
4209         ;;
4210         i6400)
4211             disable mips32r2
4212             disable mips32r6
4213             disable mips64r2
4214             disable mipsdsp
4215             disable mipsdspr2
4216             check_cflags "-mtune=i6400 -mabi=64" &&
4217             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4218             check_ldflags "-mabi=64" &&
4219             add_asflags "-mfp64"
4220         ;;
4221         loongson*)
4222             disable mips32r2
4223             disable mips32r6
4224             disable mips64r2
4225             disable mips64r6
4226             disable mipsfpu
4227             disable mipsdsp
4228             disable mipsdspr2
4229             disable msa
4230             enable local_aligned_8 local_aligned_16 local_aligned_32
4231             enable simd_align_16
4232             enable fast_64bit
4233             enable fast_clz
4234             enable fast_cmov
4235             enable fast_unaligned
4236             disable aligned_stack
4237             case $cpu in
4238                 loongson3*)
4239                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4240                 ;;
4241                 loongson2e)
4242                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4243                 ;;
4244                 loongson2f)
4245                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4246                 ;;
4247             esac
4248         ;;
4249         generic)
4250             disable mips64r6
4251             disable msa
4252         ;;
4253         *)
4254             # Unknown CPU. Disable everything.
4255             warn "unknown CPU. Disabling all MIPS optimizations."
4256             disable mipsfpu
4257             disable mips32r2
4258             disable mips32r6
4259             disable mips64r2
4260             disable mips64r6
4261             disable mipsdsp
4262             disable mipsdspr2
4263             disable msa
4264         ;;
4265     esac
4266
4267 elif enabled ppc; then
4268
4269     disable ldbrx
4270
4271     case $(tolower $cpu) in
4272         601|ppc601|powerpc601)
4273             cpuflags="-mcpu=601"
4274             disable altivec
4275         ;;
4276         603*|ppc603*|powerpc603*)
4277             cpuflags="-mcpu=603"
4278             disable altivec
4279         ;;
4280         604*|ppc604*|powerpc604*)
4281             cpuflags="-mcpu=604"
4282             disable altivec
4283         ;;
4284         g3|75*|ppc75*|powerpc75*)
4285             cpuflags="-mcpu=750"
4286             disable altivec
4287         ;;
4288         g4|745*|ppc745*|powerpc745*)
4289             cpuflags="-mcpu=7450"
4290             disable vsx
4291         ;;
4292         74*|ppc74*|powerpc74*)
4293             cpuflags="-mcpu=7400"
4294             disable vsx
4295         ;;
4296         g5|970|ppc970|powerpc970)
4297             cpuflags="-mcpu=970"
4298             disable vsx
4299         ;;
4300         power[3-6]*)
4301             cpuflags="-mcpu=$cpu"
4302             disable vsx
4303         ;;
4304         power[7-8]*)
4305             cpuflags="-mcpu=$cpu"
4306         ;;
4307         cell)
4308             cpuflags="-mcpu=cell"
4309             enable ldbrx
4310             disable vsx
4311         ;;
4312         e500mc)
4313             cpuflags="-mcpu=e500mc"
4314             disable altivec
4315         ;;
4316         e500v2)
4317             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4318             disable altivec
4319             disable dcbzl
4320         ;;
4321         e500)
4322             cpuflags="-mcpu=8540 -mhard-float"
4323             disable altivec
4324             disable dcbzl
4325         ;;
4326     esac
4327
4328 elif enabled sparc; then
4329
4330     case $cpu in
4331         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4332             cpuflags="-mcpu=$cpu"
4333         ;;
4334         ultrasparc*|niagara[234])
4335             cpuflags="-mcpu=$cpu"
4336         ;;
4337     esac
4338
4339 elif enabled x86; then
4340
4341     case $cpu in
4342         i[345]86|pentium)
4343             cpuflags="-march=$cpu"
4344             disable i686
4345             disable mmx
4346         ;;
4347         # targets that do NOT support nopl and conditional mov (cmov)
4348         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4349             cpuflags="-march=$cpu"
4350             disable i686
4351         ;;
4352         # targets that do support nopl and conditional mov (cmov)
4353         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4354         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4355             cpuflags="-march=$cpu"
4356             enable i686
4357             enable fast_cmov
4358         ;;
4359         # targets that do support conditional mov but on which it's slow
4360         pentium4|pentium4m|prescott|nocona)
4361             cpuflags="-march=$cpu"
4362             enable i686
4363             disable fast_cmov
4364         ;;
4365     esac
4366
4367 fi
4368
4369 if [ "$cpu" != generic ]; then
4370     add_cflags  $cpuflags
4371     add_asflags $cpuflags
4372     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4373 fi
4374
4375 # compiler sanity check
4376 check_exec <<EOF
4377 int main(void){ return 0; }
4378 EOF
4379 if test "$?" != 0; then
4380     echo "$cc is unable to create an executable file."
4381     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4382         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4383         echo "Only do this if you know what cross compiling means."
4384     fi
4385     die "C compiler test failed."
4386 fi
4387
4388 add_cppflags -D_ISOC99_SOURCE
4389 add_cxxflags -D__STDC_CONSTANT_MACROS
4390 check_cflags -std=c99
4391 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4392 #include <stdlib.h>
4393 EOF
4394 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4395 #include <stdlib.h>
4396 EOF
4397
4398 add_host_cppflags -D_ISOC99_SOURCE
4399 check_host_cflags -std=c99
4400 check_host_cflags -Wall
4401 check_host_cflags -O3
4402
4403 check_64bit(){
4404     arch32=$1
4405     arch64=$2
4406     expr=$3
4407     check_code cc "" "int test[2*($expr) - 1]" &&
4408         subarch=$arch64 || subarch=$arch32
4409 }
4410
4411 case "$arch" in
4412     aarch64|alpha|ia64)
4413         spic=$shared
4414     ;;
4415     mips)
4416         check_64bit mips mips64 '_MIPS_SIM > 1'
4417         spic=$shared
4418     ;;
4419     parisc)
4420         check_64bit parisc parisc64 'sizeof(void *) > 4'
4421         spic=$shared
4422     ;;
4423     ppc)
4424         check_64bit ppc ppc64 'sizeof(void *) > 4'
4425         spic=$shared
4426     ;;
4427     s390)
4428         check_64bit s390 s390x 'sizeof(void *) > 4'
4429         spic=$shared
4430     ;;
4431     sparc)
4432         check_64bit sparc sparc64 'sizeof(void *) > 4'
4433         spic=$shared
4434     ;;
4435     x86)
4436         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4437         # Treat x32 as x64 for now. Note it also needs spic=$shared
4438         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4439             subarch=x86_64
4440         if test "$subarch" = "x86_64"; then
4441             spic=$shared
4442         fi
4443     ;;
4444     ppc)
4445         check_cc <<EOF && subarch="ppc64"
4446         int test[(int)sizeof(char*) - 7];
4447 EOF
4448     ;;
4449 esac
4450
4451 enable $subarch
4452 enabled spic && enable_weak pic
4453
4454 # OS specific
4455 case $target_os in
4456     aix)
4457         SHFLAGS=-shared
4458         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4459         enabled shared && add_ldflags -Wl,-brtl
4460         ;;
4461     android)
4462         disable symver
4463         enable section_data_rel_ro
4464         SLIB_INSTALL_NAME='$(SLIBNAME)'
4465         SLIB_INSTALL_LINKS=
4466         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4467         ;;
4468     haiku)
4469         prefix_default="/boot/common"
4470         network_extralibs="-lnetwork"
4471         host_libs=
4472         ;;
4473     sunos)
4474         SHFLAGS='-shared -Wl,-h,$$(@F)'
4475         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4476         network_extralibs="-lsocket -lnsl"
4477         add_cppflags -D__EXTENSIONS__
4478         # When using suncc to build, the Solaris linker will mark
4479         # an executable with each instruction set encountered by
4480         # the Solaris assembler.  As our libraries contain their own
4481         # guards for processor-specific code, instead suppress
4482         # generation of the HWCAPS ELF section on Solaris x86 only.
4483         enabled_all suncc x86 &&
4484             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4485             add_ldflags -Wl,-M,mapfile
4486         nm_default='nm -P -g'
4487         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4488         ;;
4489     netbsd)
4490         disable symver
4491         oss_indev_extralibs="-lossaudio"
4492         oss_outdev_extralibs="-lossaudio"
4493         enabled gcc || check_ldflags -Wl,-zmuldefs
4494         ;;
4495     openbsd|bitrig)
4496         disable symver
4497         SHFLAGS='-shared'
4498         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4499         SLIB_INSTALL_LINKS=
4500         oss_indev_extralibs="-lossaudio"
4501         oss_outdev_extralibs="-lossaudio"
4502         ;;
4503     dragonfly)
4504         disable symver
4505         ;;
4506     freebsd)
4507         ;;
4508     bsd/os)
4509         add_extralibs -lpoll -lgnugetopt
4510         strip="strip -d"
4511         ;;
4512     darwin)
4513         enabled ppc && add_asflags -force_cpusubtype_ALL
4514         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4515         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4516         strip="${strip} -x"
4517         add_ldflags -Wl,-dynamic,-search_paths_first
4518         SLIBSUF=".dylib"
4519         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4520         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4521         objformat="macho"
4522         enabled x86_64 && objformat="macho64"
4523         enabled_any pic shared x86_64 ||
4524             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4525         ;;
4526     msys*)
4527         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4528         ;;
4529     mingw32*|mingw64*)
4530         if test $target_os = "mingw32ce"; then
4531             disable network
4532         else
4533             target_os=mingw32
4534         fi
4535         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4536         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4537         LIBTARGET=i386
4538         if enabled x86_64; then
4539             LIBTARGET="i386:x86-64"
4540         elif enabled arm; then
4541             LIBTARGET=arm-wince
4542         fi
4543         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4544         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4545         shlibdir_default="$bindir_default"
4546         SLIBPREF=""
4547         SLIBSUF=".dll"
4548         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4549         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4550         dlltool="${cross_prefix}dlltool"
4551         if check_cmd lib.exe -list; then
4552             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4553             if enabled x86_64; then
4554                 LIBTARGET=x64
4555             fi
4556         elif check_cmd $dlltool --version; then
4557             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4558         fi
4559         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4560         SLIB_INSTALL_LINKS=
4561         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4562         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4563         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4564         objformat="win32"
4565         ranlib=:
4566         enable dos_paths
4567         check_ldflags -Wl,--nxcompat,--dynamicbase
4568         # Lets work around some stupidity in binutils.
4569         # ld will strip relocations from executables even though we need them
4570         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4571         # however ld then forgets what the entry point should be (oops) so we
4572         # have to manually (re)set it.
4573         if enabled x86_32; then
4574             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4575         elif enabled x86_64; then
4576             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4577             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4578             # Set image base >4GB for extra entropy with HEASLR
4579             add_ldexeflags -Wl,--image-base,0x140000000
4580             append SHFLAGS -Wl,--image-base,0x180000000
4581         fi
4582         ;;
4583     win32|win64)
4584         disable symver
4585         if enabled shared; then
4586             # Link to the import library instead of the normal static library
4587             # for shared libs.
4588             LD_LIB='%.lib'
4589             # Cannot build both shared and static libs with MSVC or icl.
4590             disable static
4591         fi
4592         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4593         shlibdir_default="$bindir_default"
4594         SLIBPREF=""
4595         SLIBSUF=".dll"
4596         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4597         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4598         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4599         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4600         SLIB_INSTALL_LINKS=
4601         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4602         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4603         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4604         objformat="win32"
4605         ranlib=:
4606         enable dos_paths
4607         ;;
4608     cygwin*)
4609         target_os=cygwin
4610         shlibdir_default="$bindir_default"
4611         SLIBPREF="cyg"
4612         SLIBSUF=".dll"
4613         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4614         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4615         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4616         SLIB_INSTALL_LINKS=
4617         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4618         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4619         objformat="win32"
4620         enable dos_paths
4621         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4622         ;;
4623     *-dos|freedos|opendos)
4624         network_extralibs="-lsocket"
4625         objformat="coff"
4626         enable dos_paths
4627         add_cppflags -U__STRICT_ANSI__
4628         ;;
4629     linux)
4630         enable dv1394
4631         enable section_data_rel_ro
4632         ;;
4633     irix*)
4634         target_os=irix
4635         ranlib="echo ignoring ranlib"
4636         ;;
4637     os/2*)
4638         strip="lxlite -CS"
4639         ln_s="cp -f"
4640         objformat="aout"
4641         add_cppflags -D_GNU_SOURCE
4642         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4643         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4644         LIBSUF="_s.a"
4645         SLIBPREF=""
4646         SLIBSUF=".dll"
4647         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4648         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4649         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4650             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4651             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4652             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4653             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4654         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4655             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4656         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4657         enable dos_paths
4658         enable_weak os2threads
4659         ;;
4660     gnu/kfreebsd)
4661         add_cppflags -D_BSD_SOURCE
4662         ;;
4663     gnu)
4664         ;;
4665     qnx)
4666         add_cppflags -D_QNX_SOURCE
4667         network_extralibs="-lsocket"
4668         ;;
4669     symbian)
4670         SLIBSUF=".dll"
4671         enable dos_paths
4672         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4673         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4674         add_ldflags -Wl,--target1-abs,--no-undefined \
4675                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4676                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4677         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4678                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4679                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4680         ;;
4681     osf1)
4682         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4683         ;;
4684     minix)
4685         ;;
4686     plan9)
4687         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4688                      -D_REENTRANT_SOURCE        \
4689                      -D_RESEARCH_SOURCE         \
4690                      -DFD_SETSIZE=96            \
4691                      -DHAVE_SOCK_OPTS
4692         add_compat strtod.o strtod=avpriv_strtod
4693         network_extralibs='-lbsd'
4694         exeobjs=compat/plan9/main.o
4695         disable ffserver
4696         cp_f='cp'
4697         ;;
4698     none)
4699         ;;
4700     *)
4701         die "Unknown OS '$target_os'."
4702         ;;
4703 esac
4704
4705 # test if creating links works
4706 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4707 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4708 mkdir "$link_dest"
4709 $ln_s "$link_dest" "$link_name"
4710 touch "$link_dest/test_file"
4711 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4712     # create link to source path
4713     [ -e src ] && rm src
4714     $ln_s "$source_path" src
4715     source_link=src
4716 else
4717     # creating directory links doesn't work
4718     # fall back to using the full source path
4719     source_link="$source_path"
4720 fi
4721 # cleanup
4722 rm -r "$link_dest"
4723 rm -r "$link_name"
4724
4725 # determine libc flavour
4726
4727 probe_libc(){
4728     pfx=$1
4729     pfx_no_=${pfx%_}
4730     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4731     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4732         eval ${pfx}libc_type=uclibc
4733         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4734     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4735         eval ${pfx}libc_type=glibc
4736         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4737     # MinGW headers can be installed on Cygwin, so check for newlib first.
4738     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4739         eval ${pfx}libc_type=newlib
4740         add_${pfx}cppflags -U__STRICT_ANSI__
4741     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4742     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4743         eval ${pfx}libc_type=mingw64
4744         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4745             add_compat msvcrt/snprintf.o
4746             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4747         fi
4748         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4749         eval test \$${pfx_no_}cc_type = "gcc" &&
4750             add_${pfx}cppflags -D__printf__=__gnu_printf__
4751     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4752          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4753         eval ${pfx}libc_type=mingw32
4754         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4755             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4756             die "ERROR: MinGW32 runtime version must be >= 3.15."
4757         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4758         eval test \$${pfx_no_}cc_type = "gcc" &&
4759             add_${pfx}cppflags -D__printf__=__gnu_printf__
4760     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4761         eval ${pfx}libc_type=msvcrt
4762         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4763             if [ "$pfx" = host_ ]; then
4764                 add_host_cppflags -Dsnprintf=_snprintf
4765             else
4766                 add_compat strtod.o strtod=avpriv_strtod
4767                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4768                                              _snprintf=avpriv_snprintf  \
4769                                              vsnprintf=avpriv_vsnprintf
4770             fi
4771         fi
4772         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4773         # 0x601 by default unless something else is set by the user.
4774         # This can easily lead to us detecting functions only present
4775         # in such new versions and producing binaries requiring windows 7.0.
4776         # Therefore explicitly set the default to XP unless the user has
4777         # set something else on the command line.
4778         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4779         # family. For these cases, configure is free to use any functions
4780         # found in the SDK headers by default. (Alternatively, we could force
4781         # _WIN32_WINNT to 0x0602 in that case.)
4782         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4783             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4784 #ifdef WINAPI_FAMILY
4785 #include <winapifamily.h>
4786 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4787 #error not desktop
4788 #endif
4789 #endif
4790 EOF
4791     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4792         eval ${pfx}libc_type=klibc
4793     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4794         eval ${pfx}libc_type=bionic
4795     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4796         eval ${pfx}libc_type=solaris
4797         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4798     fi
4799     check_${pfx}cc <<EOF
4800 #include <time.h>
4801 void *v = localtime_r;
4802 EOF
4803 test "$?" != 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
4804 #include <time.h>
4805 void *v = localtime_r;
4806 EOF
4807
4808 }
4809
4810 probe_libc
4811 test -n "$libc_type" && enable libc_$libc_type
4812 probe_libc host_
4813 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4814
4815 case $libc_type in
4816     bionic)
4817         add_compat strtod.o strtod=avpriv_strtod
4818         ;;
4819 esac
4820
4821 # hacks for compiler/libc/os combinations
4822
4823 if enabled_all tms470 libc_glibc; then