Merge commit '59b9d2f684f1ff66627ca2b7d2dd05771ade62f0'
[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   --install-name-dir=DIR   Darwin directory name for installed targets
95
96 Licensing options:
97   --enable-gpl             allow use of GPL code, the resulting libs
98                            and binaries will be under GPL [no]
99   --enable-version3        upgrade (L)GPL to version 3 [no]
100   --enable-nonfree         allow use of nonfree code, the resulting libs
101                            and binaries will be unredistributable [no]
102
103 Configuration options:
104   --disable-static         do not build static libraries [no]
105   --enable-shared          build shared libraries [no]
106   --enable-small           optimize for size instead of speed
107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
108   --enable-gray            enable full grayscale support (slower color)
109   --disable-swscale-alpha  disable alpha channel support in swscale
110   --disable-all            disable building components, libraries and programs
111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
112   --enable-raise-major     increase major version numbers in sonames [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Hardware accelerators:
153   --disable-d3d11va        disable D3D11VA code [autodetect]
154   --disable-dxva2          disable DXVA2 code [autodetect]
155   --disable-vaapi          disable VAAPI code [autodetect]
156   --disable-vda            disable VDA code [autodetect]
157   --disable-vdpau          disable VDPAU code [autodetect]
158
159 Individual component options:
160   --disable-everything     disable all components listed below
161   --disable-encoder=NAME   disable encoder NAME
162   --enable-encoder=NAME    enable encoder NAME
163   --disable-encoders       disable all encoders
164   --disable-decoder=NAME   disable decoder NAME
165   --enable-decoder=NAME    enable decoder NAME
166   --disable-decoders       disable all decoders
167   --disable-hwaccel=NAME   disable hwaccel NAME
168   --enable-hwaccel=NAME    enable hwaccel NAME
169   --disable-hwaccels       disable all hwaccels
170   --disable-muxer=NAME     disable muxer NAME
171   --enable-muxer=NAME      enable muxer NAME
172   --disable-muxers         disable all muxers
173   --disable-demuxer=NAME   disable demuxer NAME
174   --enable-demuxer=NAME    enable demuxer NAME
175   --disable-demuxers       disable all demuxers
176   --enable-parser=NAME     enable parser NAME
177   --disable-parser=NAME    disable parser NAME
178   --disable-parsers        disable all parsers
179   --enable-bsf=NAME        enable bitstream filter NAME
180   --disable-bsf=NAME       disable bitstream filter NAME
181   --disable-bsfs           disable all bitstream filters
182   --enable-protocol=NAME   enable protocol NAME
183   --disable-protocol=NAME  disable protocol NAME
184   --disable-protocols      disable all protocols
185   --enable-indev=NAME      enable input device NAME
186   --disable-indev=NAME     disable input device NAME
187   --disable-indevs         disable input devices
188   --enable-outdev=NAME     enable output device NAME
189   --disable-outdev=NAME    disable output device NAME
190   --disable-outdevs        disable output devices
191   --disable-devices        disable all devices
192   --enable-filter=NAME     enable filter NAME
193   --disable-filter=NAME    disable filter NAME
194   --disable-filters        disable all filters
195
196 External library support:
197   --disable-audiotoolbox   enable AudioToolbox decoders and encoders [autodetect]
198   --enable-avisynth        enable reading of AviSynth script files [no]
199   --disable-bzlib          disable bzlib [autodetect]
200   --enable-cuda            enable dynamically linked CUDA [no]
201   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
202   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
203   --enable-frei0r          enable frei0r video filtering [no]
204   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
205                            if openssl, librtmp or gmp is not used [no]
206   --enable-gmp             enable gmp, needed for rtmp(t)e support
207                            if openssl or librtmp is not used [no]
208   --enable-gnutls          enable gnutls, needed for https support
209                            if openssl is not used [no]
210   --disable-iconv          disable iconv [autodetect]
211   --enable-jni             enable JNI support [no]
212   --enable-ladspa          enable LADSPA audio filtering [no]
213   --enable-libass          enable libass subtitles rendering,
214                            needed for subtitles and ass filter [no]
215   --enable-libbluray       enable BluRay reading using libbluray [no]
216   --enable-libbs2b         enable bs2b DSP library [no]
217   --enable-libcaca         enable textual display using libcaca [no]
218   --enable-libcelt         enable CELT decoding via libcelt [no]
219   --enable-libcdio         enable audio CD grabbing with libcdio [no]
220   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
221                            and libraw1394 [no]
222   --enable-libfaac         enable AAC encoding via libfaac [no]
223   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
224   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
225   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
226   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
227   --enable-libgme          enable Game Music Emu via libgme [no]
228   --enable-libgsm          enable GSM de/encoding via libgsm [no]
229   --enable-libiec61883     enable iec61883 via libiec61883 [no]
230   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
231   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
232   --enable-libmfx          enable HW acceleration through libmfx
233   --enable-libmodplug      enable ModPlug via libmodplug [no]
234   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
235   --enable-libnut          enable NUT (de)muxing via libnut,
236                            native (de)muxer exists [no]
237   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
238   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
239   --enable-libopencv       enable video filtering via libopencv [no]
240   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
241   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
242   --enable-libopus         enable Opus de/encoding via libopus [no]
243   --enable-libpulse        enable Pulseaudio input via libpulse [no]
244   --enable-librubberband   enable rubberband needed for rubberband filter [no]
245   --enable-librtmp         enable RTMP[E] support via librtmp [no]
246   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
247   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
248   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
249   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
250   --enable-libsoxr         enable Include libsoxr resampling [no]
251   --enable-libspeex        enable Speex de/encoding via libspeex [no]
252   --enable-libssh          enable SFTP protocol via libssh [no]
253   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
254   --enable-libtheora       enable Theora encoding via libtheora [no]
255   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
256   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
257   --enable-libv4l2         enable libv4l2/v4l-utils [no]
258   --enable-libvidstab      enable video stabilization using vid.stab [no]
259   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
260   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
261                            native implementation exists [no]
262   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
263   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
264   --enable-libwebp         enable WebP encoding via libwebp [no]
265   --enable-libx264         enable H.264 encoding via x264 [no]
266   --enable-libx265         enable HEVC encoding via x265 [no]
267   --enable-libxavs         enable AVS encoding via xavs [no]
268   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
269   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
270   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
271   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
272   --enable-libxvid         enable Xvid encoding via xvidcore,
273                            native MPEG-4/Xvid encoder exists [no]
274   --enable-libzimg         enable z.lib, needed for zscale filter [no]
275   --enable-libzmq          enable message passing via libzmq [no]
276   --enable-libzvbi         enable teletext support via libzvbi [no]
277   --disable-lzma           disable lzma [autodetect]
278   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
279   --enable-mediacodec      enable Android MediaCodec support [no]
280   --enable-mmal            enable decoding via MMAL [no]
281   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
282   --enable-nvenc           enable NVIDIA NVENC support [no]
283   --enable-openal          enable OpenAL 1.1 capture support [no]
284   --enable-opencl          enable OpenCL code
285   --enable-opengl          enable OpenGL rendering [no]
286   --enable-openssl         enable openssl, needed for https support
287                            if gnutls is not used [no]
288   --disable-schannel       disable SChannel SSP, needed for TLS support on
289                            Windows if openssl and gnutls are not used [autodetect]
290   --disable-sdl            disable sdl [autodetect]
291   --disable-securetransport disable Secure Transport, needed for TLS support
292                            on OSX if openssl and gnutls are not used [autodetect]
293   --disable-videotoolbox   disable VideoToolbox code [autodetect]
294   --enable-x11grab         enable X11 grabbing (legacy) [no]
295   --disable-xlib           disable xlib [autodetect]
296   --disable-zlib           disable zlib [autodetect]
297
298 Toolchain options:
299   --arch=ARCH              select architecture [$arch]
300   --cpu=CPU                select the minimum required CPU (affects
301                            instruction selection, may crash on older CPUs)
302   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
303   --progs-suffix=SUFFIX    program name suffix []
304   --enable-cross-compile   assume a cross-compiler is used
305   --sysroot=PATH           root of cross-build tree
306   --sysinclude=PATH        location of cross-build system headers
307   --target-os=OS           compiler targets OS [$target_os]
308   --target-exec=CMD        command to run executables on target
309   --target-path=DIR        path to view of build directory on target
310   --target-samples=DIR     path to samples directory on target
311   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
312   --toolchain=NAME         set tool defaults according to NAME
313   --nm=NM                  use nm tool NM [$nm_default]
314   --ar=AR                  use archive tool AR [$ar_default]
315   --as=AS                  use assembler AS [$as_default]
316   --strip=STRIP            use strip tool STRIP [$strip_default]
317   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
318   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
319   --cc=CC                  use C compiler CC [$cc_default]
320   --cxx=CXX                use C compiler CXX [$cxx_default]
321   --objcc=OCC              use ObjC compiler OCC [$cc_default]
322   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
323   --ld=LD                  use linker LD [$ld_default]
324   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
325   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
326   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
327   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
328   --host-cc=HOSTCC         use host C compiler HOSTCC
329   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
330   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
331   --host-ld=HOSTLD         use host linker HOSTLD
332   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
333   --host-libs=HLIBS        use libs HLIBS when linking for host
334   --host-os=OS             compiler host OS [$target_os]
335   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
336   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
337   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
338   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
339   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
340   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
341   --extra-libs=ELIBS       add ELIBS [$ELIBS]
342   --extra-version=STRING   version string suffix []
343   --optflags=OPTFLAGS      override optimization-related compiler flags
344   --build-suffix=SUFFIX    library name suffix []
345   --enable-pic             build position-independent code
346   --enable-thumb           compile for Thumb instruction set
347   --enable-lto             use link-time optimization
348   --env="ENV=override"     override the environment variables
349
350 Advanced options (experts only):
351   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
352   --custom-allocator=NAME  use a supported custom allocator
353   --disable-symver         disable symbol versioning
354   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
355   --disable-safe-bitstream-reader
356                            disable buffer boundary checking in bitreaders
357                            (faster, but may crash)
358   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
359   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
360
361 Optimization options (experts only):
362   --disable-asm            disable all assembly optimizations
363   --disable-altivec        disable AltiVec optimizations
364   --disable-vsx            disable VSX optimizations
365   --disable-power8         disable POWER8 optimizations
366   --disable-amd3dnow       disable 3DNow! optimizations
367   --disable-amd3dnowext    disable 3DNow! extended optimizations
368   --disable-mmx            disable MMX optimizations
369   --disable-mmxext         disable MMXEXT optimizations
370   --disable-sse            disable SSE optimizations
371   --disable-sse2           disable SSE2 optimizations
372   --disable-sse3           disable SSE3 optimizations
373   --disable-ssse3          disable SSSE3 optimizations
374   --disable-sse4           disable SSE4 optimizations
375   --disable-sse42          disable SSE4.2 optimizations
376   --disable-avx            disable AVX optimizations
377   --disable-xop            disable XOP optimizations
378   --disable-fma3           disable FMA3 optimizations
379   --disable-fma4           disable FMA4 optimizations
380   --disable-avx2           disable AVX2 optimizations
381   --disable-aesni          disable AESNI optimizations
382   --disable-armv5te        disable armv5te optimizations
383   --disable-armv6          disable armv6 optimizations
384   --disable-armv6t2        disable armv6t2 optimizations
385   --disable-vfp            disable VFP optimizations
386   --disable-neon           disable NEON optimizations
387   --disable-inline-asm     disable use of inline assembly
388   --disable-yasm           disable use of nasm/yasm assembly
389   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
390   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
391   --disable-msa            disable MSA optimizations
392   --disable-mipsfpu        disable floating point MIPS optimizations
393   --disable-mmi            disable Loongson SIMD optimizations
394   --disable-fast-unaligned consider unaligned accesses slow
395
396 Developer options (useful when working on FFmpeg itself):
397   --disable-debug          disable debugging symbols
398   --enable-debug=LEVEL     set the debug level [$debuglevel]
399   --disable-optimizations  disable compiler optimizations
400   --enable-extra-warnings  enable more compiler warnings
401   --disable-stripping      disable stripping of executables and shared libraries
402   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
403                            2 causes a slowdown at runtime.
404   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
405   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
406                            leaks and errors, using the specified valgrind binary.
407                            Cannot be combined with --target-exec
408   --enable-ftrapv          Trap arithmetic overflows
409   --samples=PATH           location of test samples for FATE, if not set use
410                            \$FATE_SAMPLES at make invocation time.
411   --enable-neon-clobber-test check NEON registers for clobbering (should be
412                            used only for debugging purposes)
413   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
414                            should be used only for debugging purposes)
415   --enable-random          randomly enable/disable components
416   --disable-random
417   --enable-random=LIST     randomly enable/disable specific components or
418   --disable-random=LIST    component groups. LIST is a comma-separated list
419                            of NAME[:PROB] entries where NAME is a component
420                            (group) and PROB the probability associated with
421                            NAME (default 0.5).
422   --random-seed=VALUE      seed value for --enable/disable-random
423   --disable-valgrind-backtrace do not print a backtrace under Valgrind
424                            (only applies to --disable-optimizations builds)
425
426 NOTE: Object files are built at the place where configure is launched.
427 EOF
428   exit 0
429 }
430
431 quotes='""'
432 if test -t 1 && which tput >/dev/null 2>&1; then
433     ncolors=$(tput colors)
434     if test -n "$ncolors" && test $ncolors -ge 8; then
435         bold_color=$(tput bold)
436         warn_color=$(tput setaf 3)
437         error_color=$(tput setaf 1)
438         reset_color=$(tput sgr0)
439     fi
440     # 72 used instead of 80 since that's the default of pr
441     ncols=$(tput cols)
442 fi
443 : ${ncols:=72}
444
445 log(){
446     echo "$@" >> $logfile
447 }
448
449 log_file(){
450     log BEGIN $1
451     pr -n -t $1 >> $logfile
452     log END $1
453 }
454
455 warn(){
456     log "WARNING: $*"
457     WARNINGS="${WARNINGS}WARNING: $*\n"
458 }
459
460 die(){
461     log "$@"
462     echo "$error_color$bold_color$@$reset_color"
463     cat <<EOF
464
465 If you think configure made a mistake, make sure you are using the latest
466 version from Git.  If the latest version fails, report the problem to the
467 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
468 EOF
469     if disabled logging; then
470         cat <<EOF
471 Rerun configure with logging enabled (do not use --disable-logging), and
472 include the log this produces with your report.
473 EOF
474     else
475         cat <<EOF
476 Include the log file "$logfile" produced by configure as this will help
477 solve the problem.
478 EOF
479     fi
480     exit 1
481 }
482
483 # Avoid locale weirdness, besides we really just want to translate ASCII.
484 toupper(){
485     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
486 }
487
488 tolower(){
489     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
490 }
491
492 c_escape(){
493     echo "$*" | sed 's/["\\]/\\\0/g'
494 }
495
496 sh_quote(){
497     v=$(echo "$1" | sed "s/'/'\\\\''/g")
498     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
499     echo "$v"
500 }
501
502 cleanws(){
503     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
504 }
505
506 filter(){
507     pat=$1
508     shift
509     for v; do
510         eval "case $v in $pat) echo $v ;; esac"
511     done
512 }
513
514 filter_out(){
515     pat=$1
516     shift
517     for v; do
518         eval "case $v in $pat) ;; *) echo $v ;; esac"
519     done
520 }
521
522 map(){
523     m=$1
524     shift
525     for v; do eval $m; done
526 }
527
528 add_suffix(){
529     suffix=$1
530     shift
531     for v; do echo ${v}${suffix}; done
532 }
533
534 set_all(){
535     value=$1
536     shift
537     for var in $*; do
538         eval $var=$value
539     done
540 }
541
542 set_weak(){
543     value=$1
544     shift
545     for var; do
546         eval : \${$var:=$value}
547     done
548 }
549
550 sanitize_var_name(){
551     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
552 }
553
554 set_safe(){
555     var=$1
556     shift
557     eval $(sanitize_var_name "$var")='$*'
558 }
559
560 get_safe(){
561     eval echo \$$(sanitize_var_name "$1")
562 }
563
564 pushvar(){
565     for pvar in $*; do
566         eval level=\${${pvar}_level:=0}
567         eval ${pvar}_${level}="\$$pvar"
568         eval ${pvar}_level=$(($level+1))
569     done
570 }
571
572 popvar(){
573     for pvar in $*; do
574         eval level=\${${pvar}_level:-0}
575         test $level = 0 && continue
576         eval level=$(($level-1))
577         eval $pvar="\${${pvar}_${level}}"
578         eval ${pvar}_level=$level
579         eval unset ${pvar}_${level}
580     done
581 }
582
583 enable(){
584     set_all yes $*
585 }
586
587 disable(){
588     set_all no $*
589 }
590
591 enable_weak(){
592     set_weak yes $*
593 }
594
595 disable_weak(){
596     set_weak no $*
597 }
598
599 enable_safe(){
600     for var; do
601         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
602     done
603 }
604
605 disable_safe(){
606     for var; do
607         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
608     done
609 }
610
611 do_enable_deep(){
612     for var; do
613         enabled $var && continue
614         eval sel="\$${var}_select"
615         eval sgs="\$${var}_suggest"
616         pushvar var sgs
617         enable_deep $sel
618         popvar sgs
619         enable_deep_weak $sgs
620         popvar var
621     done
622 }
623
624 enable_deep(){
625     do_enable_deep $*
626     enable $*
627 }
628
629 enable_deep_weak(){
630     for var; do
631         disabled $var && continue
632         pushvar var
633         do_enable_deep $var
634         popvar var
635         enable_weak $var
636     done
637 }
638
639 enabled(){
640     test "${1#!}" = "$1" && op='=' || op=!=
641     eval test "x\$${1#!}" $op "xyes"
642 }
643
644 disabled(){
645     test "${1#!}" = "$1" && op='=' || op=!=
646     eval test "x\$${1#!}" $op "xno"
647 }
648
649 enabled_all(){
650     for opt; do
651         enabled $opt || return 1
652     done
653 }
654
655 disabled_all(){
656     for opt; do
657         disabled $opt || return 1
658     done
659 }
660
661 enabled_any(){
662     for opt; do
663         enabled $opt && return 0
664     done
665 }
666
667 disabled_any(){
668     for opt; do
669         disabled $opt && return 0
670     done
671     return 1
672 }
673
674 set_default(){
675     for opt; do
676         eval : \${$opt:=\$${opt}_default}
677     done
678 }
679
680 is_in(){
681     value=$1
682     shift
683     for var in $*; do
684         [ $var = $value ] && return 0
685     done
686     return 1
687 }
688
689 do_check_deps(){
690     for cfg; do
691         cfg="${cfg#!}"
692         enabled ${cfg}_checking && die "Circular dependency for $cfg."
693         disabled ${cfg}_checking && continue
694         enable ${cfg}_checking
695         append allopts $cfg
696
697         eval dep_all="\$${cfg}_deps"
698         eval dep_any="\$${cfg}_deps_any"
699         eval dep_sel="\$${cfg}_select"
700         eval dep_sgs="\$${cfg}_suggest"
701         eval dep_ifa="\$${cfg}_if"
702         eval dep_ifn="\$${cfg}_if_any"
703
704         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
705         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
706         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
707
708         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
709         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
710         enabled_all  $dep_all || disable $cfg
711         enabled_any  $dep_any || disable $cfg
712         disabled_any $dep_sel && disable $cfg
713
714         if enabled $cfg; then
715             enable_deep $dep_sel
716             enable_deep_weak $dep_sgs
717         fi
718
719         disable ${cfg}_checking
720     done
721 }
722
723 check_deps(){
724     unset allopts
725
726     do_check_deps "$@"
727
728     for cfg in $allopts; do
729         enabled $cfg || continue
730         eval dep_extralibs="\$${cfg}_extralibs"
731         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
732     done
733 }
734
735 print_config(){
736     pfx=$1
737     files=$2
738     shift 2
739     map 'eval echo "$v \${$v:-no}"' "$@" |
740     awk "BEGIN { split(\"$files\", files) }
741         {
742             c = \"$pfx\" toupper(\$1);
743             v = \$2;
744             sub(/yes/, 1, v);
745             sub(/no/,  0, v);
746             for (f in files) {
747                 file = files[f];
748                 if (file ~ /\\.h\$/) {
749                     printf(\"#define %s %d\\n\", c, v) >>file;
750                 } else if (file ~ /\\.asm\$/) {
751                     printf(\"%%define %s %d\\n\", c, v) >>file;
752                 } else if (file ~ /\\.mak\$/) {
753                     n = -v ? \"\" : \"!\";
754                     printf(\"%s%s=yes\\n\", n, c) >>file;
755                 } else if (file ~ /\\.texi\$/) {
756                     pre = -v ? \"\" : \"@c \";
757                     yesno = \$2;
758                     c2 = tolower(c);
759                     gsub(/_/, \"-\", c2);
760                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
761                 }
762             }
763         }"
764 }
765
766 print_enabled(){
767     suf=$1
768     shift
769     for v; do
770         enabled $v && printf "%s\n" ${v%$suf};
771     done
772 }
773
774 append(){
775     var=$1
776     shift
777     eval "$var=\"\$$var $*\""
778 }
779
780 prepend(){
781     var=$1
782     shift
783     eval "$var=\"$* \$$var\""
784 }
785
786 unique(){
787     var=$1
788     uniq_list=""
789     for tok in $(eval echo \$$var); do
790         uniq_list="$(filter_out $tok $uniq_list) $tok"
791     done
792     eval "$var=\"${uniq_list}\""
793 }
794
795 add_cppflags(){
796     append CPPFLAGS "$@"
797 }
798
799 add_cflags(){
800     append CFLAGS $($cflags_filter "$@")
801 }
802
803 add_cxxflags(){
804     append CXXFLAGS $($cflags_filter "$@")
805 }
806
807 add_asflags(){
808     append ASFLAGS $($asflags_filter "$@")
809 }
810
811 add_objcflags(){
812     append OBJCFLAGS $($objcflags_filter "$@")
813 }
814
815 add_ldflags(){
816     append LDFLAGS $($ldflags_filter "$@")
817 }
818
819 add_ldexeflags(){
820     append LDEXEFLAGS $($ldflags_filter "$@")
821 }
822
823 add_ldlibflags(){
824     append LDLIBFLAGS $($ldflags_filter "$@")
825 }
826
827 add_stripflags(){
828     append ASMSTRIPFLAGS "$@"
829 }
830
831 add_extralibs(){
832     prepend extralibs $($ldflags_filter "$@")
833 }
834
835 add_host_cppflags(){
836     append host_cppflags "$@"
837 }
838
839 add_host_cflags(){
840     append host_cflags $($host_cflags_filter "$@")
841 }
842
843 add_host_ldflags(){
844     append host_ldflags $($host_ldflags_filter "$@")
845 }
846
847 add_compat(){
848     append compat_objs $1
849     shift
850     map 'add_cppflags -D$v' "$@"
851 }
852
853 check_cmd(){
854     log "$@"
855     "$@" >> $logfile 2>&1
856 }
857
858 check_stat(){
859     log check_stat "$@"
860     stat "$1" >> $logfile 2>&1
861 }
862
863 cc_o(){
864     eval printf '%s\\n' $CC_O
865 }
866
867 cc_e(){
868     eval printf '%s\\n' $CC_E
869 }
870
871 check_cc(){
872     log check_cc "$@"
873     cat > $TMPC
874     log_file $TMPC
875     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
876 }
877
878 check_cxx(){
879     log check_cxx "$@"
880     cat > $TMPCPP
881     log_file $TMPCPP
882     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
883 }
884
885 check_objcc(){
886     log check_objcc "$@"
887     cat > $TMPM
888     log_file $TMPM
889     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
890 }
891
892 check_cpp(){
893     log check_cpp "$@"
894     cat > $TMPC
895     log_file $TMPC
896     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
897 }
898
899 as_o(){
900     eval printf '%s\\n' $AS_O
901 }
902
903 check_as(){
904     log check_as "$@"
905     cat > $TMPS
906     log_file $TMPS
907     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
908 }
909
910 check_inline_asm(){
911     log check_inline_asm "$@"
912     name="$1"
913     code="$2"
914     shift 2
915     disable $name
916     check_cc "$@" <<EOF && enable $name
917 void foo(void){ __asm__ volatile($code); }
918 EOF
919 }
920
921 check_inline_asm_flags(){
922     log check_inline_asm_flags "$@"
923     name="$1"
924     code="$2"
925     flags=''
926     shift 2
927     while [ "$1" != "" ]; do
928       append flags $1
929       shift
930     done;
931     disable $name
932     cat > $TMPC <<EOF
933 void foo(void){ __asm__ volatile($code); }
934 EOF
935     log_file $TMPC
936     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
937     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
938 }
939
940 check_insn(){
941     log check_insn "$@"
942     check_inline_asm ${1}_inline "\"$2\""
943     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
944 }
945
946 check_yasm(){
947     log check_yasm "$@"
948     echo "$1" > $TMPS
949     log_file $TMPS
950     shift 1
951     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
952 }
953
954 ld_o(){
955     eval printf '%s\\n' $LD_O
956 }
957
958 check_ld(){
959     log check_ld "$@"
960     type=$1
961     shift 1
962     flags=$(filter_out '-l*|*.so' $@)
963     libs=$(filter '-l*|*.so' $@)
964     check_$type $($cflags_filter $flags) || return
965     flags=$($ldflags_filter $flags)
966     libs=$($ldflags_filter $libs)
967     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
968 }
969
970 print_include(){
971     hdr=$1
972     test "${hdr%.h}" = "${hdr}" &&
973         echo "#include $hdr"    ||
974         echo "#include <$hdr>"
975 }
976
977 check_code(){
978     log check_code "$@"
979     check=$1
980     headers=$2
981     code=$3
982     shift 3
983     {
984         for hdr in $headers; do
985             print_include $hdr
986         done
987         echo "int main(void) { $code; return 0; }"
988     } | check_$check "$@"
989 }
990
991 check_cppflags(){
992     log check_cppflags "$@"
993     check_cc "$@" <<EOF && append CPPFLAGS "$@"
994 int x;
995 EOF
996 }
997
998 test_cflags(){
999     log test_cflags "$@"
1000     set -- $($cflags_filter "$@")
1001     check_cc "$@" <<EOF
1002 int x;
1003 EOF
1004 }
1005
1006 check_cflags(){
1007     log check_cflags "$@"
1008     test_cflags "$@" && add_cflags "$@"
1009 }
1010
1011 check_cxxflags(){
1012     log check_cxxflags "$@"
1013     set -- $($cflags_filter "$@")
1014     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1015 int x;
1016 EOF
1017 }
1018
1019 test_objcflags(){
1020     log test_cflags "$@"
1021     set -- $($cflags_filter "$@")
1022     check_objcc "$@" <<EOF
1023 int x;
1024 EOF
1025 }
1026
1027 check_objcflags(){
1028     log check_cflags "$@"
1029     test_objcflags "$@" && add_objcflags "$@"
1030 }
1031
1032 test_ldflags(){
1033     log test_ldflags "$@"
1034     check_ld "cc" "$@" <<EOF
1035 int main(void){ return 0; }
1036 EOF
1037 }
1038
1039 check_ldflags(){
1040     log check_ldflags "$@"
1041     test_ldflags "$@" && add_ldflags "$@"
1042 }
1043
1044 test_stripflags(){
1045     log test_stripflags "$@"
1046     # call check_cc to get a fresh TMPO
1047     check_cc <<EOF
1048 int main(void) { return 0; }
1049 EOF
1050     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1051 }
1052
1053 check_stripflags(){
1054     log check_stripflags "$@"
1055     test_stripflags "$@" && add_stripflags "$@"
1056 }
1057
1058 check_header(){
1059     log check_header "$@"
1060     header=$1
1061     shift
1062     disable_safe $header
1063     check_cpp "$@" <<EOF && enable_safe $header
1064 #include <$header>
1065 int x;
1066 EOF
1067 }
1068
1069 check_header_objcc(){
1070     log check_header_objcc "$@"
1071     rm -f -- "$TMPO"
1072     header=$1
1073     shift
1074     disable_safe $header
1075     {
1076        echo "#include <$header>"
1077        echo "int main(void) { return 0; }"
1078     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1079 }
1080
1081 check_func(){
1082     log check_func "$@"
1083     func=$1
1084     shift
1085     disable $func
1086     check_ld "cc" "$@" <<EOF && enable $func
1087 extern int $func();
1088 int main(void){ $func(); }
1089 EOF
1090 }
1091
1092 check_complexfunc(){
1093     log check_complexfunc "$@"
1094     func=$1
1095     narg=$2
1096     shift 2
1097     test $narg = 2 && args="f, g" || args="f * I"
1098     disable $func
1099     check_ld "cc" "$@" <<EOF && enable $func
1100 #include <complex.h>
1101 #include <math.h>
1102 float foo(complex float f, complex float g) { return $func($args); }
1103 int main(void){ return (int) foo; }
1104 EOF
1105 }
1106
1107 check_mathfunc(){
1108     log check_mathfunc "$@"
1109     func=$1
1110     narg=$2
1111     shift 2
1112     test $narg = 2 && args="f, g" || args="f"
1113     disable $func
1114     check_ld "cc" "$@" <<EOF && enable $func
1115 #include <math.h>
1116 float foo(float f, float g) { return $func($args); }
1117 int main(void){ return (int) foo; }
1118 EOF
1119 }
1120
1121 check_func_headers(){
1122     log check_func_headers "$@"
1123     headers=$1
1124     funcs=$2
1125     shift 2
1126     {
1127         for hdr in $headers; do
1128             print_include $hdr
1129         done
1130         for func in $funcs; do
1131             echo "long check_$func(void) { return (long) $func; }"
1132         done
1133         echo "int main(void) { return 0; }"
1134     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1135 }
1136
1137 check_class_headers_cpp(){
1138     log check_class_headers_cpp "$@"
1139     headers=$1
1140     classes=$2
1141     shift 2
1142     {
1143         for hdr in $headers; do
1144             echo "#include <$hdr>"
1145         done
1146         echo "int main(void) { "
1147         i=1
1148         for class in $classes; do
1149             echo "$class obj$i;"
1150             i=$(expr $i + 1)
1151         done
1152         echo "return 0; }"
1153     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1154 }
1155
1156 check_cpp_condition(){
1157     log check_cpp_condition "$@"
1158     header=$1
1159     condition=$2
1160     shift 2
1161     check_cpp "$@" <<EOF
1162 #include <$header>
1163 #if !($condition)
1164 #error "unsatisfied condition: $condition"
1165 #endif
1166 EOF
1167 }
1168
1169 check_lib(){
1170     log check_lib "$@"
1171     header="$1"
1172     func="$2"
1173     shift 2
1174     check_header $header && check_func $func "$@" && add_extralibs "$@"
1175 }
1176
1177 check_lib2(){
1178     log check_lib2 "$@"
1179     headers="$1"
1180     funcs="$2"
1181     shift 2
1182     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1183 }
1184
1185 check_lib_cpp(){
1186     log check_lib_cpp "$@"
1187     headers="$1"
1188     classes="$2"
1189     shift 2
1190     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1191 }
1192
1193 check_pkg_config(){
1194     log check_pkg_config "$@"
1195     pkgandversion="$1"
1196     pkg="${1%% *}"
1197     headers="$2"
1198     funcs="$3"
1199     shift 3
1200     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1201     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1202     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1203     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1204         set_safe "${pkg}_cflags" $pkg_cflags   &&
1205         set_safe "${pkg}_libs"   $pkg_libs
1206 }
1207
1208 check_exec(){
1209     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1210 }
1211
1212 check_exec_crash(){
1213     code=$(cat)
1214
1215     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1216     # are safe but may not be available everywhere.  Thus we use
1217     # raise(SIGTERM) instead.  The check is run in a subshell so we
1218     # can redirect the "Terminated" message from the shell.  SIGBUS
1219     # is not defined by standard C so it is used conditionally.
1220
1221     (check_exec "$@") >> $logfile 2>&1 <<EOF
1222 #include <signal.h>
1223 static void sighandler(int sig){
1224     raise(SIGTERM);
1225 }
1226 int foo(void){
1227     $code
1228 }
1229 int (*func_ptr)(void) = foo;
1230 int main(void){
1231     signal(SIGILL, sighandler);
1232     signal(SIGFPE, sighandler);
1233     signal(SIGSEGV, sighandler);
1234 #ifdef SIGBUS
1235     signal(SIGBUS, sighandler);
1236 #endif
1237     return func_ptr();
1238 }
1239 EOF
1240 }
1241
1242 check_type(){
1243     log check_type "$@"
1244     headers=$1
1245     type=$2
1246     shift 2
1247     disable_safe "$type"
1248     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1249 }
1250
1251 check_struct(){
1252     log check_struct "$@"
1253     headers=$1
1254     struct=$2
1255     member=$3
1256     shift 3
1257     disable_safe "${struct}_${member}"
1258     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1259         enable_safe "${struct}_${member}"
1260 }
1261
1262 check_builtin(){
1263     log check_builtin "$@"
1264     name=$1
1265     headers=$2
1266     builtin=$3
1267     shift 3
1268     disable "$name"
1269     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1270 }
1271
1272 check_compile_assert(){
1273     log check_compile_assert "$@"
1274     name=$1
1275     headers=$2
1276     condition=$3
1277     shift 3
1278     disable "$name"
1279     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1280 }
1281
1282 require(){
1283     name="$1"
1284     header="$2"
1285     func="$3"
1286     shift 3
1287     check_lib $header $func "$@" || die "ERROR: $name not found"
1288 }
1289
1290 require2(){
1291     name="$1"
1292     headers="$2"
1293     func="$3"
1294     shift 3
1295     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1296 }
1297
1298 require_cpp(){
1299     name="$1"
1300     headers="$2"
1301     classes="$3"
1302     shift 3
1303     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1304 }
1305
1306 use_pkg_config(){
1307     pkg="$1"
1308     check_pkg_config "$@" || return 1
1309     add_cflags    $(get_safe "${pkg}_cflags")
1310     add_extralibs $(get_safe "${pkg}_libs")
1311 }
1312
1313 require_pkg_config(){
1314     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1315 }
1316
1317 require_libfreetype(){
1318     log require_libfreetype "$@"
1319     pkg="freetype2"
1320     check_cmd $pkg_config --exists --print-errors $pkg \
1321       || die "ERROR: $pkg not found"
1322     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1323     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1324     {
1325         echo "#include <ft2build.h>"
1326         echo "#include FT_FREETYPE_H"
1327         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1328         echo "int main(void) { return 0; }"
1329     } | check_ld "cc" $pkg_cflags $pkg_libs \
1330       && set_safe "${pkg}_cflags" $pkg_cflags \
1331       && set_safe "${pkg}_libs"   $pkg_libs \
1332       || die "ERROR: $pkg not found"
1333     add_cflags    $(get_safe "${pkg}_cflags")
1334     add_extralibs $(get_safe "${pkg}_libs")
1335 }
1336
1337 hostcc_e(){
1338     eval printf '%s\\n' $HOSTCC_E
1339 }
1340
1341 hostcc_o(){
1342     eval printf '%s\\n' $HOSTCC_O
1343 }
1344
1345 check_host_cc(){
1346     log check_host_cc "$@"
1347     cat > $TMPC
1348     log_file $TMPC
1349     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1350 }
1351
1352 check_host_cpp(){
1353     log check_host_cpp "$@"
1354     cat > $TMPC
1355     log_file $TMPC
1356     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1357 }
1358
1359 check_host_cppflags(){
1360     log check_host_cppflags "$@"
1361     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1362 int x;
1363 EOF
1364 }
1365
1366 check_host_cflags(){
1367     log check_host_cflags "$@"
1368     set -- $($host_cflags_filter "$@")
1369     check_host_cc "$@" <<EOF && append host_cflags "$@"
1370 int x;
1371 EOF
1372 }
1373
1374 check_host_cpp_condition(){
1375     log check_host_cpp_condition "$@"
1376     header=$1
1377     condition=$2
1378     shift 2
1379     check_host_cpp "$@" <<EOF
1380 #include <$header>
1381 #if !($condition)
1382 #error "unsatisfied condition: $condition"
1383 #endif
1384 EOF
1385 }
1386
1387 cp_if_changed(){
1388     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1389     mkdir -p "$(dirname $2)"
1390     $cp_f "$1" "$2"
1391 }
1392
1393 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1394 # system-dependent things.
1395
1396 AVCODEC_COMPONENTS="
1397     bsfs
1398     decoders
1399     encoders
1400     hwaccels
1401     parsers
1402 "
1403
1404 AVDEVICE_COMPONENTS="
1405     indevs
1406     outdevs
1407 "
1408 AVFILTER_COMPONENTS="
1409     filters
1410 "
1411 AVFORMAT_COMPONENTS="
1412     demuxers
1413     muxers
1414     protocols
1415 "
1416
1417 AVRESAMPLE_COMPONENTS=""
1418 AVUTIL_COMPONENTS=""
1419
1420 COMPONENT_LIST="
1421     $AVCODEC_COMPONENTS
1422     $AVDEVICE_COMPONENTS
1423     $AVFILTER_COMPONENTS
1424     $AVFORMAT_COMPONENTS
1425     $AVRESAMPLE_COMPONENTS
1426     $AVUTIL_COMPONENTS
1427 "
1428
1429 EXAMPLE_LIST="
1430     avio_reading_example
1431     avio_dir_cmd_example
1432     decoding_encoding_example
1433     demuxing_decoding_example
1434     extract_mvs_example
1435     filter_audio_example
1436     filtering_audio_example
1437     filtering_video_example
1438     metadata_example
1439     muxing_example
1440     qsvdec_example
1441     remuxing_example
1442     resampling_audio_example
1443     scaling_video_example
1444     transcode_aac_example
1445     transcoding_example
1446 "
1447
1448 EXTERNAL_LIBRARY_LIST="
1449     audiotoolbox
1450     avisynth
1451     bzlib
1452     chromaprint
1453     crystalhd
1454     cuda
1455     decklink
1456     frei0r
1457     gcrypt
1458     gmp
1459     gnutls
1460     iconv
1461     jni
1462     ladspa
1463     libass
1464     libbluray
1465     libbs2b
1466     libcaca
1467     libcdio
1468     libcelt
1469     libdc1394
1470     libfaac
1471     libfdk_aac
1472     libflite
1473     libfontconfig
1474     libfreetype
1475     libfribidi
1476     libgme
1477     libgsm
1478     libiec61883
1479     libilbc
1480     libkvazaar
1481     libmfx
1482     libmodplug
1483     libmp3lame
1484     libnut
1485     libopencore_amrnb
1486     libopencore_amrwb
1487     libopencv
1488     libopenh264
1489     libopenjpeg
1490     libopus
1491     libpulse
1492     librtmp
1493     librubberband
1494     libschroedinger
1495     libshine
1496     libsmbclient
1497     libsnappy
1498     libsoxr
1499     libspeex
1500     libssh
1501     libtesseract
1502     libtheora
1503     libtwolame
1504     libutvideo
1505     libv4l2
1506     libvidstab
1507     libvo_amrwbenc
1508     libvorbis
1509     libvpx
1510     libwavpack
1511     libwebp
1512     libx264
1513     libx265
1514     libxavs
1515     libxcb
1516     libxcb_shm
1517     libxcb_shape
1518     libxcb_xfixes
1519     libxvid
1520     libzimg
1521     libzmq
1522     libzvbi
1523     lzma
1524     mediacodec
1525     mmal
1526     netcdf
1527     nvenc
1528     openal
1529     opencl
1530     opengl
1531     openssl
1532     schannel
1533     sdl
1534     securetransport
1535     videotoolbox
1536     x11grab
1537     xlib
1538     zlib
1539 "
1540
1541 DOCUMENT_LIST="
1542     doc
1543     htmlpages
1544     manpages
1545     podpages
1546     txtpages
1547 "
1548
1549 FEATURE_LIST="
1550     ftrapv
1551     gray
1552     hardcoded_tables
1553     runtime_cpudetect
1554     safe_bitstream_reader
1555     shared
1556     small
1557     static
1558     swscale_alpha
1559 "
1560
1561 HWACCEL_LIST="
1562     d3d11va
1563     dxva2
1564     vaapi
1565     vda
1566     vdpau
1567     videotoolbox_hwaccel
1568     xvmc
1569 "
1570
1571 LIBRARY_LIST="
1572     avcodec
1573     avdevice
1574     avfilter
1575     avformat
1576     avresample
1577     avutil
1578     postproc
1579     swresample
1580     swscale
1581 "
1582
1583 LICENSE_LIST="
1584     gpl
1585     nonfree
1586     version3
1587 "
1588
1589 PROGRAM_LIST="
1590     ffplay
1591     ffprobe
1592     ffserver
1593     ffmpeg
1594 "
1595
1596 SUBSYSTEM_LIST="
1597     dct
1598     dwt
1599     error_resilience
1600     faan
1601     fast_unaligned
1602     fft
1603     lsp
1604     lzo
1605     mdct
1606     pixelutils
1607     network
1608     rdft
1609 "
1610
1611 CONFIG_LIST="
1612     $COMPONENT_LIST
1613     $DOCUMENT_LIST
1614     $EXAMPLE_LIST
1615     $EXTERNAL_LIBRARY_LIST
1616     $FEATURE_LIST
1617     $HWACCEL_LIST
1618     $LICENSE_LIST
1619     $LIBRARY_LIST
1620     $PROGRAM_LIST
1621     $SUBSYSTEM_LIST
1622     fontconfig
1623     incompatible_libav_abi
1624     memalign_hack
1625     memory_poisoning
1626     neon_clobber_test
1627     pic
1628     pod2man
1629     raise_major
1630     thumb
1631     valgrind_backtrace
1632     xmm_clobber_test
1633 "
1634
1635 THREADS_LIST="
1636     pthreads
1637     os2threads
1638     w32threads
1639 "
1640
1641 ATOMICS_LIST="
1642     atomics_gcc
1643     atomics_suncc
1644     atomics_win32
1645 "
1646
1647 ARCH_LIST="
1648     aarch64
1649     alpha
1650     arm
1651     avr32
1652     avr32_ap
1653     avr32_uc
1654     bfin
1655     ia64
1656     m68k
1657     mips
1658     mips64
1659     parisc
1660     ppc
1661     ppc64
1662     s390
1663     sh4
1664     sparc
1665     sparc64
1666     tilegx
1667     tilepro
1668     tomi
1669     x86
1670     x86_32
1671     x86_64
1672 "
1673
1674 ARCH_EXT_LIST_ARM="
1675     armv5te
1676     armv6
1677     armv6t2
1678     armv8
1679     neon
1680     vfp
1681     vfpv3
1682     setend
1683 "
1684
1685 ARCH_EXT_LIST_MIPS="
1686     mipsfpu
1687     mips32r2
1688     mips32r5
1689     mips64r2
1690     mips32r6
1691     mips64r6
1692     mipsdsp
1693     mipsdspr2
1694     msa
1695 "
1696
1697 ARCH_EXT_LIST_LOONGSON="
1698     loongson2
1699     loongson3
1700     mmi
1701 "
1702
1703 ARCH_EXT_LIST_X86_SIMD="
1704     aesni
1705     amd3dnow
1706     amd3dnowext
1707     avx
1708     avx2
1709     fma3
1710     fma4
1711     mmx
1712     mmxext
1713     sse
1714     sse2
1715     sse3
1716     sse4
1717     sse42
1718     ssse3
1719     xop
1720 "
1721
1722 ARCH_EXT_LIST_PPC="
1723     altivec
1724     dcbzl
1725     ldbrx
1726     power8
1727     ppc4xx
1728     vsx
1729 "
1730
1731 ARCH_EXT_LIST_X86="
1732     $ARCH_EXT_LIST_X86_SIMD
1733     cpunop
1734     i686
1735 "
1736
1737 ARCH_EXT_LIST="
1738     $ARCH_EXT_LIST_ARM
1739     $ARCH_EXT_LIST_PPC
1740     $ARCH_EXT_LIST_X86
1741     $ARCH_EXT_LIST_MIPS
1742     $ARCH_EXT_LIST_LOONGSON
1743 "
1744
1745 ARCH_FEATURES="
1746     aligned_stack
1747     fast_64bit
1748     fast_clz
1749     fast_cmov
1750     local_aligned_8
1751     local_aligned_16
1752     local_aligned_32
1753     simd_align_16
1754 "
1755
1756 BUILTIN_LIST="
1757     atomic_cas_ptr
1758     atomic_compare_exchange
1759     machine_rw_barrier
1760     MemoryBarrier
1761     mm_empty
1762     rdtsc
1763     sarestart
1764     sem_timedwait
1765     sync_val_compare_and_swap
1766 "
1767 HAVE_LIST_CMDLINE="
1768     inline_asm
1769     symver
1770     yasm
1771 "
1772
1773 HAVE_LIST_PUB="
1774     bigendian
1775     fast_unaligned
1776     incompatible_libav_abi
1777 "
1778
1779 HEADERS_LIST="
1780     alsa_asoundlib_h
1781     altivec_h
1782     arpa_inet_h
1783     asm_types_h
1784     cdio_paranoia_h
1785     cdio_paranoia_paranoia_h
1786     dispatch_dispatch_h
1787     dev_bktr_ioctl_bt848_h
1788     dev_bktr_ioctl_meteor_h
1789     dev_ic_bt8xx_h
1790     dev_video_bktr_ioctl_bt848_h
1791     dev_video_meteor_ioctl_meteor_h
1792     direct_h
1793     dirent_h
1794     dlfcn_h
1795     d3d11_h
1796     dxva_h
1797     ES2_gl_h
1798     gsm_h
1799     io_h
1800     mach_mach_time_h
1801     machine_ioctl_bt848_h
1802     machine_ioctl_meteor_h
1803     malloc_h
1804     opencv2_core_core_c_h
1805     openjpeg_2_1_openjpeg_h
1806     openjpeg_2_0_openjpeg_h
1807     openjpeg_1_5_openjpeg_h
1808     OpenGL_gl3_h
1809     poll_h
1810     sndio_h
1811     soundcard_h
1812     sys_mman_h
1813     sys_param_h
1814     sys_resource_h
1815     sys_select_h
1816     sys_soundcard_h
1817     sys_time_h
1818     sys_un_h
1819     sys_videoio_h
1820     termios_h
1821     udplite_h
1822     unistd_h
1823     valgrind_valgrind_h
1824     windows_h
1825     winsock2_h
1826 "
1827
1828 INTRINSICS_LIST="
1829     intrinsics_neon
1830 "
1831
1832 COMPLEX_FUNCS="
1833     cabs
1834     cexp
1835 "
1836
1837 MATH_FUNCS="
1838     atanf
1839     atan2f
1840     cbrt
1841     cbrtf
1842     copysign
1843     cosf
1844     erf
1845     exp2
1846     exp2f
1847     expf
1848     hypot
1849     isfinite
1850     isinf
1851     isnan
1852     ldexpf
1853     llrint
1854     llrintf
1855     log2
1856     log2f
1857     log10f
1858     lrint
1859     lrintf
1860     powf
1861     rint
1862     round
1863     roundf
1864     sinf
1865     trunc
1866     truncf
1867 "
1868
1869 SYSTEM_FUNCS="
1870     access
1871     aligned_malloc
1872     arc4random
1873     clock_gettime
1874     closesocket
1875     CommandLineToArgvW
1876     CoTaskMemFree
1877     CryptGenRandom
1878     dlopen
1879     fcntl
1880     flt_lim
1881     fork
1882     getaddrinfo
1883     gethrtime
1884     getopt
1885     GetProcessAffinityMask
1886     GetProcessMemoryInfo
1887     GetProcessTimes
1888     getrusage
1889     GetSystemTimeAsFileTime
1890     gettimeofday
1891     glob
1892     glXGetProcAddress
1893     gmtime_r
1894     inet_aton
1895     isatty
1896     jack_port_get_latency_range
1897     kbhit
1898     localtime_r
1899     lstat
1900     lzo1x_999_compress
1901     mach_absolute_time
1902     MapViewOfFile
1903     memalign
1904     mkstemp
1905     mmap
1906     mprotect
1907     nanosleep
1908     PeekNamedPipe
1909     posix_memalign
1910     pthread_cancel
1911     sched_getaffinity
1912     SetConsoleTextAttribute
1913     SetConsoleCtrlHandler
1914     setmode
1915     setrlimit
1916     Sleep
1917     strerror_r
1918     sysconf
1919     sysctl
1920     usleep
1921     UTGetOSTypeFromString
1922     VirtualAlloc
1923     wglGetProcAddress
1924 "
1925
1926 TOOLCHAIN_FEATURES="
1927     as_dn_directive
1928     as_func
1929     as_object_arch
1930     asm_mod_q
1931     attribute_may_alias
1932     attribute_packed
1933     ebp_available
1934     ebx_available
1935     gnu_as
1936     gnu_windres
1937     ibm_asm
1938     inline_asm_direct_symbol_refs
1939     inline_asm_labels
1940     inline_asm_nonlocal_labels
1941     pragma_deprecated
1942     rsync_contimeout
1943     symver_asm_label
1944     symver_gnu_asm
1945     vfp_args
1946     xform_asm
1947     xmm_clobbers
1948 "
1949
1950 TYPES_LIST="
1951     CONDITION_VARIABLE_Ptr
1952     socklen_t
1953     struct_addrinfo
1954     struct_group_source_req
1955     struct_ip_mreq_source
1956     struct_ipv6_mreq
1957     struct_msghdr_msg_flags
1958     struct_pollfd
1959     struct_rusage_ru_maxrss
1960     struct_sctp_event_subscribe
1961     struct_sockaddr_in6
1962     struct_sockaddr_sa_len
1963     struct_sockaddr_storage
1964     struct_stat_st_mtim_tv_nsec
1965     struct_v4l2_frmivalenum_discrete
1966 "
1967
1968 HAVE_LIST="
1969     $ARCH_EXT_LIST
1970     $(add_suffix _external $ARCH_EXT_LIST)
1971     $(add_suffix _inline   $ARCH_EXT_LIST)
1972     $ARCH_FEATURES
1973     $ATOMICS_LIST
1974     $BUILTIN_LIST
1975     $COMPLEX_FUNCS
1976     $HAVE_LIST_CMDLINE
1977     $HAVE_LIST_PUB
1978     $HEADERS_LIST
1979     $INTRINSICS_LIST
1980     $MATH_FUNCS
1981     $SYSTEM_FUNCS
1982     $THREADS_LIST
1983     $TOOLCHAIN_FEATURES
1984     $TYPES_LIST
1985     atomics_native
1986     dos_paths
1987     dxva2_lib
1988     dxva2api_cobj
1989     libc_msvcrt
1990     libdc1394_1
1991     libdc1394_2
1992     makeinfo
1993     makeinfo_html
1994     perl
1995     pod2man
1996     sdl
1997     section_data_rel_ro
1998     texi2html
1999     threads
2000     vaapi_x11
2001     vdpau_x11
2002     winrt
2003     xlib
2004 "
2005
2006 # options emitted with CONFIG_ prefix but not available on the command line
2007 CONFIG_EXTRA="
2008     aandcttables
2009     ac3dsp
2010     audio_frame_queue
2011     audiodsp
2012     blockdsp
2013     bswapdsp
2014     cabac
2015     dirac_parse
2016     dvprofile
2017     exif
2018     faandct
2019     faanidct
2020     fdctdsp
2021     flacdsp
2022     fmtconvert
2023     frame_thread_encoder
2024     g722dsp
2025     golomb
2026     gplv3
2027     h263dsp
2028     h264chroma
2029     h264dsp
2030     h264pred
2031     h264qpel
2032     hpeldsp
2033     huffman
2034     huffyuvdsp
2035     huffyuvencdsp
2036     idctdsp
2037     iirfilter
2038     imdct15
2039     intrax8
2040     iso_media
2041     ividsp
2042     jpegtables
2043     lgplv3
2044     libx262
2045     llauddsp
2046     llviddsp
2047     lpc
2048     lzf
2049     me_cmp
2050     mpeg_er
2051     mpegaudio
2052     mpegaudiodsp
2053     mpegvideo
2054     mpegvideoenc
2055     mss34dsp
2056     pixblockdsp
2057     qpeldsp
2058     qsv
2059     qsvdec
2060     qsvenc
2061     rangecoder
2062     riffdec
2063     riffenc
2064     rtpdec
2065     rtpenc_chain
2066     rv34dsp
2067     sinewin
2068     snappy
2069     startcode
2070     texturedsp
2071     texturedspenc
2072     tpeldsp
2073     vc1dsp
2074     videodsp
2075     vp3dsp
2076     vp56dsp
2077     vp8dsp
2078     wma_freqs
2079     wmv2dsp
2080 "
2081
2082 CMDLINE_SELECT="
2083     $ARCH_EXT_LIST
2084     $CONFIG_LIST
2085     $HAVE_LIST_CMDLINE
2086     $THREADS_LIST
2087     asm
2088     cross_compile
2089     debug
2090     extra_warnings
2091     logging
2092     lto
2093     optimizations
2094     rpath
2095     stripping
2096 "
2097
2098 PATHS_LIST="
2099     bindir
2100     datadir
2101     docdir
2102     incdir
2103     libdir
2104     mandir
2105     pkgconfigdir
2106     prefix
2107     shlibdir
2108     install_name_dir
2109 "
2110
2111 CMDLINE_SET="
2112     $PATHS_LIST
2113     ar
2114     arch
2115     as
2116     assert_level
2117     build_suffix
2118     cc
2119     objcc
2120     cpu
2121     cross_prefix
2122     custom_allocator
2123     cxx
2124     dep_cc
2125     doxygen
2126     env
2127     extra_version
2128     gas
2129     host_cc
2130     host_cflags
2131     host_ld
2132     host_ldflags
2133     host_libs
2134     host_os
2135     install
2136     ld
2137     logfile
2138     malloc_prefix
2139     nm
2140     optflags
2141     pkg_config
2142     pkg_config_flags
2143     progs_suffix
2144     random_seed
2145     ranlib
2146     samples
2147     strip
2148     sws_max_filter_size
2149     sysinclude
2150     sysroot
2151     target_exec
2152     target_os
2153     target_path
2154     target_samples
2155     tempprefix
2156     toolchain
2157     valgrind
2158     yasmexe
2159 "
2160
2161 CMDLINE_APPEND="
2162     extra_cflags
2163     extra_cxxflags
2164     extra_objcflags
2165     host_cppflags
2166 "
2167
2168 # code dependency declarations
2169
2170 # architecture extensions
2171
2172 armv5te_deps="arm"
2173 armv6_deps="arm"
2174 armv6t2_deps="arm"
2175 armv8_deps="aarch64"
2176 neon_deps_any="aarch64 arm"
2177 intrinsics_neon_deps="neon"
2178 vfp_deps_any="aarch64 arm"
2179 vfpv3_deps="vfp"
2180 setend_deps="arm"
2181
2182 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2183
2184 mipsfpu_deps="mips"
2185 mipsdsp_deps="mips"
2186 mipsdspr2_deps="mips"
2187 mips32r2_deps="mips"
2188 mips32r5_deps="mips"
2189 mips32r6_deps="mips"
2190 mips64r2_deps="mips"
2191 mips64r6_deps="mips"
2192 msa_deps="mipsfpu"
2193 mmi_deps="mips"
2194
2195 altivec_deps="ppc"
2196 dcbzl_deps="ppc"
2197 ldbrx_deps="ppc"
2198 ppc4xx_deps="ppc"
2199 vsx_deps="altivec"
2200 power8_deps="vsx"
2201
2202 cpunop_deps="i686"
2203 x86_64_select="i686"
2204 x86_64_suggest="fast_cmov"
2205
2206 amd3dnow_deps="mmx"
2207 amd3dnowext_deps="amd3dnow"
2208 i686_deps="x86"
2209 mmx_deps="x86"
2210 mmxext_deps="mmx"
2211 sse_deps="mmxext"
2212 sse2_deps="sse"
2213 sse3_deps="sse2"
2214 ssse3_deps="sse3"
2215 sse4_deps="ssse3"
2216 sse42_deps="sse4"
2217 aesni_deps="sse42"
2218 avx_deps="sse42"
2219 xop_deps="avx"
2220 fma3_deps="avx"
2221 fma4_deps="avx"
2222 avx2_deps="avx"
2223
2224 mmx_external_deps="yasm"
2225 mmx_inline_deps="inline_asm"
2226 mmx_suggest="mmx_external mmx_inline"
2227
2228 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2229     eval dep=\$${ext}_deps
2230     eval ${ext}_external_deps='"${dep}_external"'
2231     eval ${ext}_inline_deps='"${dep}_inline"'
2232     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2233 done
2234
2235 aligned_stack_if_any="aarch64 ppc x86"
2236 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2237 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2238 fast_unaligned_if_any="aarch64 ppc x86"
2239 simd_align_16_if_any="altivec neon sse"
2240
2241 # system capabilities
2242 symver_if_any="symver_asm_label symver_gnu_asm"
2243 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2244
2245 # threading support
2246 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2247 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2248 atomics_win32_if="MemoryBarrier"
2249 atomics_native_if_any="$ATOMICS_LIST"
2250 w32threads_deps="atomics_native"
2251 threads_if_any="$THREADS_LIST"
2252
2253 # subsystems
2254 dct_select="rdft"
2255 dirac_parse_select="golomb"
2256 error_resilience_select="me_cmp"
2257 faandct_deps="faan fdctdsp"
2258 faanidct_deps="faan idctdsp"
2259 h264dsp_select="startcode"
2260 frame_thread_encoder_deps="encoders threads"
2261 intrax8_select="error_resilience"
2262 mdct_select="fft"
2263 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2264 mpeg_er_select="error_resilience"
2265 mpegaudio_select="mpegaudiodsp"
2266 mpegaudiodsp_select="dct"
2267 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2268 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2269 qsvdec_select="qsv"
2270 qsvenc_select="qsv"
2271 vc1dsp_select="h264chroma qpeldsp startcode"
2272 rdft_select="fft"
2273
2274 # decoders / encoders
2275 aac_decoder_select="imdct15 mdct sinewin"
2276 aac_fixed_decoder_select="mdct sinewin"
2277 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2278 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2279 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2280 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2281 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2282 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2283 adpcm_g722_decoder_select="g722dsp"
2284 adpcm_g722_encoder_select="g722dsp"
2285 aic_decoder_select="golomb idctdsp"
2286 alac_encoder_select="lpc"
2287 als_decoder_select="bswapdsp"
2288 amrnb_decoder_select="lsp"
2289 amrwb_decoder_select="lsp"
2290 amv_decoder_select="sp5x_decoder exif"
2291 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2292 ape_decoder_select="bswapdsp llauddsp"
2293 apng_decoder_select="zlib"
2294 apng_encoder_select="huffyuvencdsp zlib"
2295 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2296 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2297 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2298 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2299 atrac1_decoder_select="mdct sinewin"
2300 atrac3_decoder_select="mdct"
2301 atrac3p_decoder_select="mdct sinewin"
2302 avrn_decoder_select="exif jpegtables"
2303 bink_decoder_select="blockdsp hpeldsp"
2304 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2305 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2306 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2307 cllc_decoder_select="bswapdsp"
2308 comfortnoise_encoder_select="lpc"
2309 cook_decoder_select="audiodsp mdct sinewin"
2310 cscd_decoder_select="lzo"
2311 cscd_decoder_suggest="zlib"
2312 dca_decoder_select="mdct"
2313 dds_decoder_select="texturedsp"
2314 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2315 dnxhd_decoder_select="blockdsp idctdsp"
2316 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2317 dvvideo_decoder_select="dvprofile idctdsp"
2318 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2319 dxa_decoder_select="zlib"
2320 dxv_decoder_select="lzf texturedsp"
2321 eac3_decoder_select="ac3_decoder"
2322 eac3_encoder_select="ac3_encoder"
2323 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2324 eatgq_decoder_select="aandcttables"
2325 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2326 exr_decoder_select="zlib"
2327 ffv1_decoder_select="golomb rangecoder"
2328 ffv1_encoder_select="rangecoder"
2329 ffvhuff_decoder_select="huffyuv_decoder"
2330 ffvhuff_encoder_select="huffyuv_encoder"
2331 fic_decoder_select="golomb"
2332 flac_decoder_select="flacdsp golomb"
2333 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2334 flashsv2_decoder_select="zlib"
2335 flashsv2_encoder_select="zlib"
2336 flashsv_decoder_select="zlib"
2337 flashsv_encoder_select="zlib"
2338 flv_decoder_select="h263_decoder"
2339 flv_encoder_select="h263_encoder"
2340 fourxm_decoder_select="blockdsp bswapdsp"
2341 fraps_decoder_select="bswapdsp huffman"
2342 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2343 g729_decoder_select="audiodsp"
2344 h261_decoder_select="mpegvideo"
2345 h261_encoder_select="aandcttables mpegvideoenc"
2346 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2347 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2348 h263i_decoder_select="h263_decoder"
2349 h263p_decoder_select="h263_decoder"
2350 h263p_encoder_select="h263_encoder"
2351 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2352 h264_decoder_suggest="error_resilience"
2353 h264_qsv_decoder_deps="libmfx"
2354 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2355 h264_qsv_encoder_deps="libmfx"
2356 h264_qsv_encoder_select="qsvenc"
2357 hap_decoder_select="snappy texturedsp"
2358 hap_encoder_deps="libsnappy"
2359 hap_encoder_select="texturedspenc"
2360 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2361 hevc_qsv_decoder_deps="libmfx"
2362 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2363 hevc_qsv_encoder_deps="libmfx"
2364 hevc_qsv_encoder_select="qsvenc"
2365 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2366 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2367 iac_decoder_select="imc_decoder"
2368 imc_decoder_select="bswapdsp fft mdct sinewin"
2369 indeo3_decoder_select="hpeldsp"
2370 indeo4_decoder_select="ividsp"
2371 indeo5_decoder_select="ividsp"
2372 interplay_video_decoder_select="hpeldsp"
2373 jpegls_decoder_select="golomb mjpeg_decoder"
2374 jpegls_encoder_select="golomb"
2375 jv_decoder_select="blockdsp"
2376 lagarith_decoder_select="huffyuvdsp"
2377 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2378 loco_decoder_select="golomb"
2379 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2380 metasound_decoder_select="lsp mdct sinewin"
2381 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2382 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2383 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2384 mjpegb_decoder_select="mjpeg_decoder"
2385 mlp_decoder_select="mlp_parser"
2386 motionpixels_decoder_select="bswapdsp"
2387 mp1_decoder_select="mpegaudio"
2388 mp1float_decoder_select="mpegaudio"
2389 mp2_decoder_select="mpegaudio"
2390 mp2float_decoder_select="mpegaudio"
2391 mp3_decoder_select="mpegaudio"
2392 mp3adu_decoder_select="mpegaudio"
2393 mp3adufloat_decoder_select="mpegaudio"
2394 mp3float_decoder_select="mpegaudio"
2395 mp3on4_decoder_select="mpegaudio"
2396 mp3on4float_decoder_select="mpegaudio"
2397 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2398 mpc8_decoder_select="mpegaudiodsp"
2399 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2400 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2401 mpegvideo_decoder_select="mpegvideo"
2402 mpeg1video_decoder_select="mpegvideo"
2403 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2404 mpeg2video_decoder_select="mpegvideo"
2405 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2406 mpeg2_qsv_decoder_deps="libmfx"
2407 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2408 mpeg2_qsv_encoder_deps="libmfx"
2409 mpeg2_qsv_encoder_select="qsvenc"
2410 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2411 mpeg4_encoder_select="h263_encoder"
2412 msa1_decoder_select="mss34dsp"
2413 msmpeg4v1_decoder_select="h263_decoder"
2414 msmpeg4v2_decoder_select="h263_decoder"
2415 msmpeg4v2_encoder_select="h263_encoder"
2416 msmpeg4v3_decoder_select="h263_decoder"
2417 msmpeg4v3_encoder_select="h263_encoder"
2418 mss2_decoder_select="vc1_decoder mpegvideo"
2419 mts2_decoder_select="mss34dsp"
2420 mxpeg_decoder_select="mjpeg_decoder"
2421 nellymoser_decoder_select="mdct sinewin"
2422 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2423 nuv_decoder_select="idctdsp lzo"
2424 on2avc_decoder_select="mdct"
2425 opus_decoder_deps="swresample"
2426 opus_decoder_select="imdct15"
2427 png_decoder_select="zlib"
2428 png_encoder_select="huffyuvencdsp zlib"
2429 prores_decoder_select="blockdsp idctdsp"
2430 prores_encoder_select="fdctdsp"
2431 qcelp_decoder_select="lsp"
2432 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2433 ra_144_decoder_select="audiodsp"
2434 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2435 ralf_decoder_select="golomb"
2436 rawvideo_decoder_select="bswapdsp"
2437 rscc_decoder_select="zlib"
2438 rtjpeg_decoder_select="me_cmp"
2439 rv10_decoder_select="h263_decoder"
2440 rv10_encoder_select="h263_encoder"
2441 rv20_decoder_select="h263_decoder"
2442 rv20_encoder_select="h263_encoder"
2443 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2444 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2445 screenpresso_decoder_select="zlib"
2446 shorten_decoder_select="golomb"
2447 sipr_decoder_select="lsp"
2448 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2449 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2450 sonic_decoder_select="golomb rangecoder"
2451 sonic_encoder_select="golomb rangecoder"
2452 sonic_ls_encoder_select="golomb rangecoder"
2453 sp5x_decoder_select="mjpeg_decoder"
2454 svq1_decoder_select="hpeldsp"
2455 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2456 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2457 svq3_decoder_suggest="zlib"
2458 tak_decoder_select="audiodsp"
2459 tdsc_decoder_select="zlib mjpeg_decoder"
2460 theora_decoder_select="vp3_decoder"
2461 thp_decoder_select="mjpeg_decoder"
2462 tiff_decoder_suggest="zlib lzma"
2463 tiff_encoder_suggest="zlib"
2464 truehd_decoder_select="mlp_parser"
2465 truemotion2_decoder_select="bswapdsp"
2466 truespeech_decoder_select="bswapdsp"
2467 tscc_decoder_select="zlib"
2468 twinvq_decoder_select="mdct lsp sinewin"
2469 txd_decoder_select="texturedsp"
2470 utvideo_decoder_select="bswapdsp"
2471 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2472 vble_decoder_select="huffyuvdsp"
2473 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2474 vc1_qsv_decoder_deps="libmfx"
2475 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2476 vc1image_decoder_select="vc1_decoder"
2477 vorbis_decoder_select="mdct"
2478 vorbis_encoder_select="mdct"
2479 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2480 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2481 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2482 vp6a_decoder_select="vp6_decoder"
2483 vp6f_decoder_select="vp6_decoder"
2484 vp7_decoder_select="h264pred videodsp vp8dsp"
2485 vp8_decoder_select="h264pred videodsp vp8dsp"
2486 vp9_decoder_select="videodsp vp9_parser"
2487 webp_decoder_select="vp8_decoder exif"
2488 wmalossless_decoder_select="llauddsp"
2489 wmapro_decoder_select="mdct sinewin wma_freqs"
2490 wmav1_decoder_select="mdct sinewin wma_freqs"
2491 wmav1_encoder_select="mdct sinewin wma_freqs"
2492 wmav2_decoder_select="mdct sinewin wma_freqs"
2493 wmav2_encoder_select="mdct sinewin wma_freqs"
2494 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2495 wmv1_decoder_select="h263_decoder"
2496 wmv1_encoder_select="h263_encoder"
2497 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2498 wmv2_encoder_select="h263_encoder wmv2dsp"
2499 wmv3_decoder_select="vc1_decoder"
2500 wmv3image_decoder_select="wmv3_decoder"
2501 xma1_decoder_select="wmapro_decoder"
2502 xma2_decoder_select="wmapro_decoder"
2503 zerocodec_decoder_select="zlib"
2504 zlib_decoder_select="zlib"
2505 zlib_encoder_select="zlib"
2506 zmbv_decoder_select="zlib"
2507 zmbv_encoder_select="zlib"
2508
2509 # platform codecs
2510 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2511 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2512
2513 # hardware accelerators
2514 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2515 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2516 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2517 vaapi_deps="va_va_h"
2518 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2519 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2520 vda_deps="vda_framework pthreads"
2521 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2522 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2523 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2524 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2525 xvmc_deps="X11_extensions_XvMClib_h"
2526
2527 h263_vaapi_hwaccel_deps="vaapi"
2528 h263_vaapi_hwaccel_select="h263_decoder"
2529 h263_videotoolbox_hwaccel_deps="videotoolbox"
2530 h263_videotoolbox_hwaccel_select="h263_decoder"
2531 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2532 h264_d3d11va_hwaccel_deps="d3d11va"
2533 h264_d3d11va_hwaccel_select="h264_decoder"
2534 h264_dxva2_hwaccel_deps="dxva2"
2535 h264_dxva2_hwaccel_select="h264_decoder"
2536 h264_mediacodec_decoder_deps="mediacodec"
2537 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2538 h264_mmal_decoder_deps="mmal"
2539 h264_mmal_decoder_select="mmal"
2540 h264_mmal_hwaccel_deps="mmal"
2541 h264_qsv_hwaccel_deps="libmfx"
2542 h264_vaapi_hwaccel_deps="vaapi"
2543 h264_vaapi_hwaccel_select="h264_decoder"
2544 h264_vda_decoder_deps="vda"
2545 h264_vda_decoder_select="h264_decoder"
2546 h264_vda_hwaccel_deps="vda"
2547 h264_vda_hwaccel_select="h264_decoder"
2548 h264_vda_old_hwaccel_deps="vda"
2549 h264_vda_old_hwaccel_select="h264_decoder"
2550 h264_vdpau_decoder_deps="vdpau"
2551 h264_vdpau_decoder_select="h264_decoder"
2552 h264_vdpau_hwaccel_deps="vdpau"
2553 h264_vdpau_hwaccel_select="h264_decoder"
2554 h264_videotoolbox_hwaccel_deps="videotoolbox"
2555 h264_videotoolbox_hwaccel_select="h264_decoder"
2556 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2557 hevc_d3d11va_hwaccel_select="hevc_decoder"
2558 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2559 hevc_dxva2_hwaccel_select="hevc_decoder"
2560 hevc_qsv_hwaccel_deps="libmfx"
2561 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2562 hevc_vaapi_hwaccel_select="hevc_decoder"
2563 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2564 hevc_vdpau_hwaccel_select="hevc_decoder"
2565 mpeg_vdpau_decoder_deps="vdpau"
2566 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2567 mpeg_xvmc_hwaccel_deps="xvmc"
2568 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2569 mpeg1_vdpau_decoder_deps="vdpau"
2570 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2571 mpeg1_vdpau_hwaccel_deps="vdpau"
2572 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2573 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2574 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2575 mpeg1_xvmc_hwaccel_deps="xvmc"
2576 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2577 mpeg2_crystalhd_decoder_select="crystalhd"
2578 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2579 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2580 mpeg2_dxva2_hwaccel_deps="dxva2"
2581 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2582 mpeg2_mmal_decoder_deps="mmal"
2583 mpeg2_mmal_decoder_select="mmal"
2584 mpeg2_mmal_hwaccel_deps="mmal"
2585 mpeg2_qsv_hwaccel_deps="libmfx"
2586 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2587 mpeg2_vaapi_hwaccel_deps="vaapi"
2588 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2589 mpeg2_vdpau_hwaccel_deps="vdpau"
2590 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2591 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2592 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2593 mpeg2_xvmc_hwaccel_deps="xvmc"
2594 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2595 mpeg4_crystalhd_decoder_select="crystalhd"
2596 mpeg4_mmal_decoder_deps="mmal"
2597 mpeg4_mmal_decoder_select="mmal"
2598 mpeg4_mmal_hwaccel_deps="mmal"
2599 mpeg4_vaapi_hwaccel_deps="vaapi"
2600 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2601 mpeg4_vdpau_decoder_deps="vdpau"
2602 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2603 mpeg4_vdpau_hwaccel_deps="vdpau"
2604 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2605 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2606 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2607 msmpeg4_crystalhd_decoder_select="crystalhd"
2608 vc1_crystalhd_decoder_select="crystalhd"
2609 vc1_d3d11va_hwaccel_deps="d3d11va"
2610 vc1_d3d11va_hwaccel_select="vc1_decoder"
2611 vc1_dxva2_hwaccel_deps="dxva2"
2612 vc1_dxva2_hwaccel_select="vc1_decoder"
2613 vc1_mmal_decoder_deps="mmal"
2614 vc1_mmal_decoder_select="mmal"
2615 vc1_mmal_hwaccel_deps="mmal"
2616 vc1_qsv_hwaccel_deps="libmfx"
2617 vc1_qsv_hwaccel_select="qsvdec_vc1"
2618 vc1_vaapi_hwaccel_deps="vaapi"
2619 vc1_vaapi_hwaccel_select="vc1_decoder"
2620 vc1_vdpau_decoder_deps="vdpau"
2621 vc1_vdpau_decoder_select="vc1_decoder"
2622 vc1_vdpau_hwaccel_deps="vdpau"
2623 vc1_vdpau_hwaccel_select="vc1_decoder"
2624 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2625 vp9_d3d11va_hwaccel_select="vp9_decoder"
2626 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2627 vp9_dxva2_hwaccel_select="vp9_decoder"
2628 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2629 vp9_vaapi_hwaccel_select="vp9_decoder"
2630 wmv3_crystalhd_decoder_select="crystalhd"
2631 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2632 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2633 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2634 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2635 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2636
2637 # parsers
2638 h264_parser_select="h264_decoder"
2639 hevc_parser_select="golomb"
2640 mpegvideo_parser_select="mpegvideo"
2641 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2642 vc1_parser_select="vc1dsp"
2643
2644 # bitstream_filters
2645 mjpeg2jpeg_bsf_select="jpegtables"
2646
2647 # external libraries
2648 aac_at_decoder_deps="audiotoolbox"
2649 ac3_at_decoder_deps="audiotoolbox"
2650 ac3_at_decoder_select="ac3_parser"
2651 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2652 alac_at_decoder_deps="audiotoolbox"
2653 amr_nb_at_decoder_deps="audiotoolbox"
2654 eac3_at_decoder_deps="audiotoolbox"
2655 eac3_at_decoder_select="ac3_parser"
2656 gsm_ms_at_decoder_deps="audiotoolbox"
2657 ilbc_at_decoder_deps="audiotoolbox"
2658 mp1_at_decoder_deps="audiotoolbox"
2659 mp2_at_decoder_deps="audiotoolbox"
2660 mp3_at_decoder_deps="audiotoolbox"
2661 pcm_alaw_at_decoder_deps="audiotoolbox"
2662 pcm_mulaw_at_decoder_deps="audiotoolbox"
2663 qdmc_at_decoder_deps="audiotoolbox"
2664 qdm2_at_decoder_deps="audiotoolbox"
2665 aac_at_encoder_deps="audiotoolbox"
2666 aac_at_encoder_select="audio_frame_queue"
2667 alac_at_encoder_deps="audiotoolbox"
2668 alac_at_encoder_select="audio_frame_queue"
2669 ilbc_at_encoder_deps="audiotoolbox"
2670 ilbc_at_encoder_select="audio_frame_queue"
2671 pcm_alaw_at_encoder_deps="audiotoolbox"
2672 pcm_alaw_at_encoder_select="audio_frame_queue"
2673 pcm_mulaw_at_encoder_deps="audiotoolbox"
2674 pcm_mulaw_at_encoder_select="audio_frame_queue"
2675 chromaprint_muxer_deps="chromaprint"
2676 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2677 libcelt_decoder_deps="libcelt"
2678 libfaac_encoder_deps="libfaac"
2679 libfaac_encoder_select="audio_frame_queue"
2680 libfdk_aac_decoder_deps="libfdk_aac"
2681 libfdk_aac_encoder_deps="libfdk_aac"
2682 libfdk_aac_encoder_select="audio_frame_queue"
2683 libgme_demuxer_deps="libgme"
2684 libgsm_decoder_deps="libgsm"
2685 libgsm_encoder_deps="libgsm"
2686 libgsm_ms_decoder_deps="libgsm"
2687 libgsm_ms_encoder_deps="libgsm"
2688 libilbc_decoder_deps="libilbc"
2689 libilbc_encoder_deps="libilbc"
2690 libkvazaar_encoder_deps="libkvazaar"
2691 libmodplug_demuxer_deps="libmodplug"
2692 libmp3lame_encoder_deps="libmp3lame"
2693 libmp3lame_encoder_select="audio_frame_queue"
2694 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2695 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2696 libopencore_amrnb_encoder_select="audio_frame_queue"
2697 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2698 libopenh264_encoder_deps="libopenh264"
2699 libopenjpeg_decoder_deps="libopenjpeg"
2700 libopenjpeg_encoder_deps="libopenjpeg"
2701 libopus_decoder_deps="libopus"
2702 libopus_encoder_deps="libopus"
2703 libopus_encoder_select="audio_frame_queue"
2704 libschroedinger_decoder_deps="libschroedinger"
2705 libschroedinger_encoder_deps="libschroedinger"
2706 libshine_encoder_deps="libshine"
2707 libshine_encoder_select="audio_frame_queue"
2708 libspeex_decoder_deps="libspeex"
2709 libspeex_encoder_deps="libspeex"
2710 libspeex_encoder_select="audio_frame_queue"
2711 libtheora_encoder_deps="libtheora"
2712 libtwolame_encoder_deps="libtwolame"
2713 libutvideo_decoder_deps="libutvideo"
2714 libutvideo_encoder_deps="libutvideo"
2715 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2716 libvorbis_decoder_deps="libvorbis"
2717 libvorbis_encoder_deps="libvorbis"
2718 libvorbis_encoder_select="audio_frame_queue"
2719 libvpx_vp8_decoder_deps="libvpx"
2720 libvpx_vp8_encoder_deps="libvpx"
2721 libvpx_vp9_decoder_deps="libvpx"
2722 libvpx_vp9_encoder_deps="libvpx"
2723 libwavpack_encoder_deps="libwavpack"
2724 libwebp_encoder_deps="libwebp"
2725 libwebp_anim_encoder_deps="libwebp"
2726 libx262_encoder_deps="libx262"
2727 libx264_encoder_deps="libx264"
2728 libx264rgb_encoder_deps="libx264"
2729 libx264rgb_encoder_select="libx264_encoder"
2730 libx265_encoder_deps="libx265"
2731 libxavs_encoder_deps="libxavs"
2732 libxvid_encoder_deps="libxvid"
2733 libzvbi_teletext_decoder_deps="libzvbi"
2734 nvenc_encoder_deps="nvenc"
2735 nvenc_h264_encoder_deps="nvenc"
2736 nvenc_hevc_encoder_deps="nvenc"
2737 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2738 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2739 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2740 videotoolbox_encoder_suggest="vda_framework"
2741
2742 # demuxers / muxers
2743 ac3_demuxer_select="ac3_parser"
2744 asf_demuxer_select="riffdec"
2745 asf_o_demuxer_select="riffdec"
2746 asf_muxer_select="riffenc"
2747 asf_stream_muxer_select="asf_muxer"
2748 avi_demuxer_select="iso_media riffdec exif"
2749 avi_muxer_select="riffenc"
2750 avisynth_demuxer_deps="avisynth"
2751 avisynth_demuxer_select="riffdec"
2752 caf_demuxer_select="iso_media riffdec"
2753 dash_muxer_select="mp4_muxer"
2754 dirac_demuxer_select="dirac_parser"
2755 dts_demuxer_select="dca_parser"
2756 dtshd_demuxer_select="dca_parser"
2757 dv_demuxer_select="dvprofile"
2758 dv_muxer_select="dvprofile"
2759 dxa_demuxer_select="riffdec"
2760 eac3_demuxer_select="ac3_parser"
2761 f4v_muxer_select="mov_muxer"
2762 flac_demuxer_select="flac_parser"
2763 hds_muxer_select="flv_muxer"
2764 hls_muxer_select="mpegts_muxer"
2765 image2_alias_pix_demuxer_select="image2_demuxer"
2766 image2_brender_pix_demuxer_select="image2_demuxer"
2767 ipod_muxer_select="mov_muxer"
2768 ismv_muxer_select="mov_muxer"
2769 libnut_demuxer_deps="libnut"
2770 libnut_muxer_deps="libnut"
2771 matroska_audio_muxer_select="matroska_muxer"
2772 matroska_demuxer_select="iso_media riffdec"
2773 matroska_demuxer_suggest="bzlib lzo zlib"
2774 matroska_muxer_select="iso_media riffenc"
2775 mmf_muxer_select="riffenc"
2776 mov_demuxer_select="iso_media riffdec"
2777 mov_demuxer_suggest="zlib"
2778 mov_muxer_select="iso_media riffenc rtpenc_chain"
2779 mp3_demuxer_select="mpegaudio_parser"
2780 mp4_muxer_select="mov_muxer"
2781 mpegts_demuxer_select="iso_media"
2782 mpegts_muxer_select="adts_muxer latm_muxer"
2783 mpegtsraw_demuxer_select="mpegts_demuxer"
2784 mxf_d10_muxer_select="mxf_muxer"
2785 mxf_opatom_muxer_select="mxf_muxer"
2786 nut_muxer_select="riffenc"
2787 nuv_demuxer_select="riffdec"
2788 oga_muxer_select="ogg_muxer"
2789 ogg_demuxer_select="dirac_parse"
2790 opus_muxer_select="ogg_muxer"
2791 psp_muxer_select="mov_muxer"
2792 rtp_demuxer_select="sdp_demuxer"
2793 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2794 rtsp_demuxer_select="http_protocol rtpdec"
2795 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2796 sap_demuxer_select="sdp_demuxer"
2797 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2798 sdp_demuxer_select="rtpdec"
2799 smoothstreaming_muxer_select="ismv_muxer"
2800 spdif_muxer_select="aac_parser"
2801 spx_muxer_select="ogg_muxer"
2802 swf_demuxer_suggest="zlib"
2803 tak_demuxer_select="tak_parser"
2804 tg2_muxer_select="mov_muxer"
2805 tgp_muxer_select="mov_muxer"
2806 vobsub_demuxer_select="mpegps_demuxer"
2807 w64_demuxer_select="wav_demuxer"
2808 w64_muxer_select="wav_muxer"
2809 wav_demuxer_select="riffdec"
2810 wav_muxer_select="riffenc"
2811 webm_muxer_select="iso_media riffenc"
2812 webm_dash_manifest_demuxer_select="matroska_demuxer"
2813 wtv_demuxer_select="mpegts_demuxer riffdec"
2814 wtv_muxer_select="mpegts_muxer riffenc"
2815 xmv_demuxer_select="riffdec"
2816 xwma_demuxer_select="riffdec"
2817
2818 # indevs / outdevs
2819 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2820 alsa_outdev_deps="alsa_asoundlib_h"
2821 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2822 avfoundation_indev_select="avfoundation"
2823 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2824 caca_outdev_deps="libcaca"
2825 decklink_indev_deps="decklink pthreads"
2826 decklink_indev_extralibs="-lstdc++"
2827 decklink_outdev_deps="decklink pthreads"
2828 decklink_outdev_extralibs="-lstdc++"
2829 dshow_indev_deps="IBaseFilter"
2830 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2831 dv1394_indev_deps="dv1394"
2832 dv1394_indev_select="dv_demuxer"
2833 fbdev_indev_deps="linux_fb_h"
2834 fbdev_outdev_deps="linux_fb_h"
2835 gdigrab_indev_deps="CreateDIBSection"
2836 gdigrab_indev_extralibs="-lgdi32"
2837 gdigrab_indev_select="bmp_decoder"
2838 iec61883_indev_deps="libiec61883"
2839 jack_indev_deps="jack_jack_h"
2840 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2841 lavfi_indev_deps="avfilter"
2842 libcdio_indev_deps="libcdio"
2843 libdc1394_indev_deps="libdc1394"
2844 libv4l2_indev_deps="libv4l2"
2845 openal_indev_deps="openal"
2846 opengl_outdev_deps="opengl"
2847 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2848 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2849 pulse_indev_deps="libpulse"
2850 pulse_outdev_deps="libpulse"
2851 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2852 qtkit_indev_select="qtkit"
2853 sdl_outdev_deps="sdl"
2854 sndio_indev_deps="sndio_h"
2855 sndio_outdev_deps="sndio_h"
2856 v4l_indev_deps="linux_videodev_h"
2857 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2858 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2859 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2860 vfwcap_indev_extralibs="-lavicap32"
2861 x11grab_indev_deps="x11grab"
2862 x11grab_xcb_indev_deps="libxcb"
2863 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2864 xv_outdev_extralibs="-lXv -lX11 -lXext"
2865
2866 # protocols
2867 async_protocol_deps="threads"
2868 bluray_protocol_deps="libbluray"
2869 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2870 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2871 ffrtmpcrypt_protocol_select="tcp_protocol"
2872 ffrtmphttp_protocol_deps="!librtmp_protocol"
2873 ffrtmphttp_protocol_select="http_protocol"
2874 ftp_protocol_select="tcp_protocol"
2875 gopher_protocol_select="network"
2876 http_protocol_select="tcp_protocol"
2877 httpproxy_protocol_select="tcp_protocol"
2878 https_protocol_select="tls_protocol"
2879 icecast_protocol_select="http_protocol"
2880 librtmp_protocol_deps="librtmp"
2881 librtmpe_protocol_deps="librtmp"
2882 librtmps_protocol_deps="librtmp"
2883 librtmpt_protocol_deps="librtmp"
2884 librtmpte_protocol_deps="librtmp"
2885 libsmbclient_protocol_deps="libsmbclient gplv3"
2886 libssh_protocol_deps="libssh"
2887 mmsh_protocol_select="http_protocol"
2888 mmst_protocol_select="network"
2889 rtmp_protocol_deps="!librtmp_protocol"
2890 rtmp_protocol_select="tcp_protocol"
2891 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2892 rtmps_protocol_deps="!librtmp_protocol"
2893 rtmps_protocol_select="tls_protocol"
2894 rtmpt_protocol_select="ffrtmphttp_protocol"
2895 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2896 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2897 rtp_protocol_select="udp_protocol"
2898 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2899 sctp_protocol_select="network"
2900 srtp_protocol_select="rtp_protocol"
2901 tcp_protocol_select="network"
2902 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2903 tls_gnutls_protocol_select="tcp_protocol"
2904 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2905 tls_openssl_protocol_select="tcp_protocol"
2906 tls_schannel_protocol_deps="schannel"
2907 tls_schannel_protocol_select="tcp_protocol"
2908 tls_securetransport_protocol_deps="securetransport"
2909 tls_securetransport_protocol_select="tcp_protocol"
2910 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2911 udp_protocol_select="network"
2912 udplite_protocol_select="network"
2913 unix_protocol_deps="sys_un_h"
2914 unix_protocol_select="network"
2915
2916 # filters
2917 afftfilt_filter_deps="avcodec"
2918 afftfilt_filter_select="fft"
2919 amovie_filter_deps="avcodec avformat"
2920 aresample_filter_deps="swresample"
2921 ass_filter_deps="libass"
2922 asyncts_filter_deps="avresample"
2923 atempo_filter_deps="avcodec"
2924 atempo_filter_select="rdft"
2925 azmq_filter_deps="libzmq"
2926 blackframe_filter_deps="gpl"
2927 boxblur_filter_deps="gpl"
2928 bs2b_filter_deps="libbs2b"
2929 colormatrix_filter_deps="gpl"
2930 cover_rect_filter_deps="avcodec avformat gpl"
2931 cropdetect_filter_deps="gpl"
2932 delogo_filter_deps="gpl"
2933 deshake_filter_select="pixelutils"
2934 drawtext_filter_deps="libfreetype"
2935 ebur128_filter_deps="gpl"
2936 eq_filter_deps="gpl"
2937 fftfilt_filter_deps="avcodec"
2938 fftfilt_filter_select="rdft"
2939 find_rect_filter_deps="avcodec avformat gpl"
2940 firequalizer_filter_deps="avcodec"
2941 firequalizer_filter_select="rdft"
2942 flite_filter_deps="libflite"
2943 frei0r_filter_deps="frei0r dlopen"
2944 frei0r_src_filter_deps="frei0r dlopen"
2945 fspp_filter_deps="gpl"
2946 geq_filter_deps="gpl"
2947 histeq_filter_deps="gpl"
2948 hqdn3d_filter_deps="gpl"
2949 hwupload_cuda_filter_deps="cuda"
2950 interlace_filter_deps="gpl"
2951 kerndeint_filter_deps="gpl"
2952 ladspa_filter_deps="ladspa dlopen"
2953 mcdeint_filter_deps="avcodec gpl"
2954 movie_filter_deps="avcodec avformat"
2955 mpdecimate_filter_deps="gpl"
2956 mpdecimate_filter_select="pixelutils"
2957 mptestsrc_filter_deps="gpl"
2958 negate_filter_deps="lut_filter"
2959 nnedi_filter_deps="gpl"
2960 ocr_filter_deps="libtesseract"
2961 ocv_filter_deps="libopencv"
2962 owdenoise_filter_deps="gpl"
2963 pan_filter_deps="swresample"
2964 perspective_filter_deps="gpl"
2965 phase_filter_deps="gpl"
2966 pp7_filter_deps="gpl"
2967 pp_filter_deps="gpl postproc"
2968 pullup_filter_deps="gpl"
2969 removelogo_filter_deps="avcodec avformat swscale"
2970 repeatfields_filter_deps="gpl"
2971 resample_filter_deps="avresample"
2972 rubberband_filter_deps="librubberband"
2973 sab_filter_deps="gpl swscale"
2974 scale2ref_filter_deps="swscale"
2975 scale_filter_deps="swscale"
2976 select_filter_select="pixelutils"
2977 showcqt_filter_deps="avcodec avformat swscale"
2978 showcqt_filter_select="fft"
2979 showfreqs_filter_deps="avcodec"
2980 showfreqs_filter_select="fft"
2981 showspectrum_filter_deps="avcodec"
2982 showspectrum_filter_select="fft"
2983 showspectrumpic_filter_deps="avcodec"
2984 showspectrumpic_filter_select="fft"
2985 smartblur_filter_deps="gpl swscale"
2986 sofalizer_filter_deps="netcdf avcodec"
2987 sofalizer_filter_select="fft"
2988 spectrumsynth_filter_deps="avcodec"
2989 spectrumsynth_filter_select="fft"
2990 spp_filter_deps="gpl avcodec"
2991 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2992 stereo3d_filter_deps="gpl"
2993 subtitles_filter_deps="avformat avcodec libass"
2994 super2xsai_filter_deps="gpl"
2995 pixfmts_super2xsai_test_deps="super2xsai_filter"
2996 tinterlace_filter_deps="gpl"
2997 tinterlace_merge_test_deps="tinterlace_filter"
2998 tinterlace_pad_test_deps="tinterlace_filter"
2999 uspp_filter_deps="gpl avcodec"
3000 vidstabdetect_filter_deps="libvidstab"
3001 vidstabtransform_filter_deps="libvidstab"
3002 zmq_filter_deps="libzmq"
3003 zoompan_filter_deps="swscale"
3004 zscale_filter_deps="libzimg"
3005
3006 # examples
3007 avcodec_example_deps="avcodec avutil"
3008 avio_dir_cmd="avformat avutil"
3009 avio_reading="avformat avcodec avutil"
3010 decoding_encoding_example_deps="avcodec avformat avutil"
3011 demuxing_decoding_example_deps="avcodec avformat avutil"
3012 extract_mvs_example_deps="avcodec avformat avutil"
3013 filter_audio_example_deps="avfilter avutil"
3014 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3015 filtering_video_example_deps="avfilter avcodec avformat avutil"
3016 metadata_example_deps="avformat avutil"
3017 muxing_example_deps="avcodec avformat avutil swscale"
3018 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3019 remuxing_example_deps="avcodec avformat avutil"
3020 resampling_audio_example_deps="avutil swresample"
3021 scaling_video_example_deps="avutil swscale"
3022 transcode_aac_example_deps="avcodec avformat swresample"
3023 transcoding_example_deps="avfilter avcodec avformat avutil"
3024
3025 # libraries, in linking order
3026 avcodec_deps="avutil"
3027 avdevice_deps="avformat avcodec avutil"
3028 avfilter_deps="avutil"
3029 avformat_deps="avcodec avutil"
3030 avresample_deps="avutil"
3031 postproc_deps="avutil gpl"
3032 swresample_deps="avutil"
3033 swscale_deps="avutil"
3034
3035 # programs
3036 ffmpeg_deps="avcodec avfilter avformat swresample"
3037 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3038                null_filter
3039                setpts_filter trim_filter"
3040 ffplay_deps="avcodec avformat swscale swresample sdl"
3041 ffplay_libs='$sdl_libs'
3042 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3043 ffprobe_deps="avcodec avformat"
3044 ffserver_deps="avformat fork sarestart"
3045 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3046
3047 # documentation
3048 podpages_deps="perl"
3049 manpages_deps="perl pod2man"
3050 htmlpages_deps="perl"
3051 htmlpages_deps_any="makeinfo_html texi2html"
3052 txtpages_deps="perl makeinfo"
3053 doc_deps_any="manpages htmlpages podpages txtpages"
3054
3055 # default parameters
3056
3057 logfile="config.log"
3058
3059 # installation paths
3060 prefix_default="/usr/local"
3061 bindir_default='${prefix}/bin'
3062 datadir_default='${prefix}/share/ffmpeg'
3063 docdir_default='${prefix}/share/doc/ffmpeg'
3064 incdir_default='${prefix}/include'
3065 libdir_default='${prefix}/lib'
3066 mandir_default='${prefix}/share/man'
3067
3068 # toolchain
3069 ar_default="ar"
3070 cc_default="gcc"
3071 cxx_default="g++"
3072 host_cc_default="gcc"
3073 cp_f="cp -f"
3074 doxygen_default="doxygen"
3075 install="install"
3076 ln_s="ln -s -f"
3077 nm_default="nm -g"
3078 objformat="elf"
3079 pkg_config_default=pkg-config
3080 ranlib_default="ranlib"
3081 strip_default="strip"
3082 yasmexe_default="yasm"
3083 windres_default="windres"
3084
3085 # OS
3086 target_os_default=$(tolower $(uname -s))
3087 host_os=$target_os_default
3088
3089 # machine
3090 if test "$target_os_default" = aix; then
3091     arch_default=$(uname -p)
3092     strip_default="strip -X32_64"
3093 else
3094     arch_default=$(uname -m)
3095 fi
3096 cpu="generic"
3097 intrinsics="none"
3098
3099 # configurable options
3100 enable $PROGRAM_LIST
3101 enable $DOCUMENT_LIST
3102 enable $EXAMPLE_LIST
3103 enable $(filter_out avresample $LIBRARY_LIST)
3104 enable stripping
3105
3106 enable asm
3107 enable debug
3108 enable doc
3109 enable faan faandct faanidct
3110 enable optimizations
3111 enable runtime_cpudetect
3112 enable safe_bitstream_reader
3113 enable static
3114 enable swscale_alpha
3115 enable valgrind_backtrace
3116
3117 sws_max_filter_size_default=256
3118 set_default sws_max_filter_size
3119
3120 # Enable platform codecs by default.
3121 enable audiotoolbox
3122
3123 # Enable hwaccels by default.
3124 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3125 enable xlib
3126
3127 enable vda_framework videotoolbox videotoolbox_encoder
3128
3129 # build settings
3130 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3131 LIBPREF="lib"
3132 LIBSUF=".a"
3133 FULLNAME='$(NAME)$(BUILDSUF)'
3134 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3135 SLIBPREF="lib"
3136 SLIBSUF=".so"
3137 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3138 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3139 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3140 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3141 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3142 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3143
3144 asflags_filter=echo
3145 cflags_filter=echo
3146 ldflags_filter=echo
3147
3148 AS_C='-c'
3149 AS_O='-o $@'
3150 CC_C='-c'
3151 CC_E='-E -o $@'
3152 CC_O='-o $@'
3153 CXX_C='-c'
3154 CXX_O='-o $@'
3155 OBJCC_C='-c'
3156 OBJCC_E='-E -o $@'
3157 OBJCC_O='-o $@'
3158 LD_O='-o $@'
3159 LD_LIB='-l%'
3160 LD_PATH='-L'
3161 HOSTCC_C='-c'
3162 HOSTCC_E='-E -o $@'
3163 HOSTCC_O='-o $@'
3164 HOSTLD_O='-o $@'
3165
3166 host_libs='-lm'
3167 host_cflags_filter=echo
3168 host_ldflags_filter=echo
3169
3170 target_path='$(CURDIR)'
3171
3172 # since the object filename is not given with the -MM flag, the compiler
3173 # is only able to print the basename, and we must add the path ourselves
3174 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3175 DEPFLAGS='-MM'
3176
3177 # find source path
3178 if test -f configure; then
3179     source_path=.
3180 else
3181     source_path=$(cd $(dirname "$0"); pwd)
3182     case "$source_path" in
3183         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3184     esac
3185     test -e "$source_path/config.h" &&
3186         die "Out of tree builds are impossible with config.h in source dir."
3187 fi
3188
3189 for v in "$@"; do
3190     r=${v#*=}
3191     l=${v%"$r"}
3192     r=$(sh_quote "$r")
3193     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3194 done
3195
3196 find_things(){
3197     thing=$1
3198     pattern=$2
3199     file=$source_path/$3
3200     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3201 }
3202
3203 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3204 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3205 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3206 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3207 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3208 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3209 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3210 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3211 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3212 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3213
3214 find_things_extern(){
3215     thing=$1
3216     pattern=$2
3217     file=$source_path/$3
3218     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3219 }
3220
3221 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3222
3223 ALL_COMPONENTS="
3224     $BSF_LIST
3225     $DECODER_LIST
3226     $DEMUXER_LIST
3227     $ENCODER_LIST
3228     $FILTER_LIST
3229     $HWACCEL_LIST
3230     $INDEV_LIST
3231     $MUXER_LIST
3232     $OUTDEV_LIST
3233     $PARSER_LIST
3234     $PROTOCOL_LIST
3235 "
3236
3237 for n in $COMPONENT_LIST; do
3238     v=$(toupper ${n%s})_LIST
3239     eval enable \$$v
3240     eval ${n}_if_any="\$$v"
3241 done
3242
3243 enable $ARCH_EXT_LIST
3244
3245 die_unknown(){
3246     echo "Unknown option \"$1\"."
3247     echo "See $0 --help for available options."
3248     exit 1
3249 }
3250
3251 print_in_columns() {
3252     cols=$(expr $ncols / 24)
3253     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3254 }
3255
3256 show_list() {
3257     suffix=_$1
3258     shift
3259     echo $* | sed s/$suffix//g | print_in_columns
3260     exit 0
3261 }
3262
3263 rand_list(){
3264     IFS=', '
3265     set -- $*
3266     unset IFS
3267     for thing; do
3268         comp=${thing%:*}
3269         prob=${thing#$comp}
3270         prob=${prob#:}
3271         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3272         echo "prob ${prob:-0.5}"
3273         printf '%s\n' $comp
3274     done
3275 }
3276
3277 do_random(){
3278     action=$1
3279     shift
3280     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3281     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3282 }
3283
3284 for opt do
3285     optval="${opt#*=}"
3286     case "$opt" in
3287         --extra-ldflags=*)
3288             add_ldflags $optval
3289         ;;
3290         --extra-ldexeflags=*)
3291             add_ldexeflags $optval
3292         ;;
3293         --extra-ldlibflags=*)
3294             add_ldlibflags $optval
3295         ;;
3296         --extra-libs=*)
3297             add_extralibs $optval
3298         ;;
3299         --disable-devices)
3300             disable $INDEV_LIST $OUTDEV_LIST
3301         ;;
3302         --enable-debug=*)
3303             debuglevel="$optval"
3304         ;;
3305         --disable-programs)
3306             disable $PROGRAM_LIST
3307         ;;
3308         --disable-everything)
3309             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3310         ;;
3311         --disable-all)
3312             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3313             disable $LIBRARY_LIST $PROGRAM_LIST doc
3314             enable avutil
3315         ;;
3316         --enable-random|--disable-random)
3317             action=${opt%%-random}
3318             do_random ${action#--} $COMPONENT_LIST
3319         ;;
3320         --enable-random=*|--disable-random=*)
3321             action=${opt%%-random=*}
3322             do_random ${action#--} $optval
3323         ;;
3324         --enable-*=*|--disable-*=*)
3325             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3326             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3327             eval list=\$$(toupper $thing)_LIST
3328             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3329             list=$(filter "$name" $list)
3330             [ "$list" = "" ] && warn "Option $opt did not match anything"
3331             $action $list
3332         ;;
3333         --enable-?*|--disable-?*)
3334             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3335             if is_in $option $COMPONENT_LIST; then
3336                 test $action = disable && action=unset
3337                 eval $action \$$(toupper ${option%s})_LIST
3338             elif is_in $option $CMDLINE_SELECT; then
3339                 $action $option
3340             else
3341                 die_unknown $opt
3342             fi
3343         ;;
3344         --list-*)
3345             NAME="${opt#--list-}"
3346             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3347             NAME=${NAME%s}
3348             eval show_list $NAME \$$(toupper $NAME)_LIST
3349         ;;
3350         --help|-h) show_help
3351         ;;
3352         --fatal-warnings) enable fatal_warnings
3353         ;;
3354         *)
3355             optname="${opt%%=*}"
3356             optname="${optname#--}"
3357             optname=$(echo "$optname" | sed 's/-/_/g')
3358             if is_in $optname $CMDLINE_SET; then
3359                 eval $optname='$optval'
3360             elif is_in $optname $CMDLINE_APPEND; then
3361                 append $optname "$optval"
3362             else
3363                 die_unknown $opt
3364             fi
3365         ;;
3366     esac
3367 done
3368
3369 for e in $env; do
3370     eval "export $e"
3371 done
3372
3373 disabled logging && logfile=/dev/null
3374
3375 # Disable all the library-specific components if the library itself
3376 # is disabled, see AVCODEC_LIST and following _LIST variables.
3377
3378 disable_components(){
3379     disabled ${1} && disable $(
3380         eval components="\$$(toupper ${1})_COMPONENTS"
3381         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3382     )
3383 }
3384
3385 map 'disable_components $v' $LIBRARY_LIST
3386
3387 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3388 set >> $logfile
3389
3390 test -n "$valgrind" && toolchain="valgrind-memcheck"
3391
3392 case "$toolchain" in
3393     *-asan)
3394         cc_default="${toolchain%-asan}"
3395         add_cflags  -fsanitize=address
3396         add_ldflags -fsanitize=address
3397     ;;
3398     *-msan)
3399         cc_default="${toolchain%-msan}"
3400         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3401         add_ldflags -fsanitize=memory
3402     ;;
3403     *-tsan)
3404         cc_default="${toolchain%-tsan}"
3405         add_cflags  -fsanitize=thread -pie
3406         add_ldflags -fsanitize=thread -pie
3407         case "$toolchain" in
3408             gcc-tsan)
3409                 add_cflags  -fPIC
3410                 add_ldflags -fPIC
3411                 ;;
3412         esac
3413     ;;
3414     *-usan)
3415         cc_default="${toolchain%-usan}"
3416         add_cflags  -fsanitize=undefined
3417         add_ldflags -fsanitize=undefined
3418     ;;
3419     valgrind-*)
3420         target_exec_default="valgrind"
3421         case "$toolchain" in
3422             valgrind-massif)
3423                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3424                 ;;
3425             valgrind-memcheck)
3426                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3427                 ;;
3428         esac
3429     ;;
3430     msvc)
3431         # Check whether the current MSVC version needs the C99 converter.
3432         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3433         # support enough of C99 to build ffmpeg. Default to the new
3434         # behaviour if the regexp was unable to match anything, since this
3435         # successfully parses the version number of existing supported
3436         # versions that require the converter (MSVC 2010 and 2012).
3437         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3438         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3439             cc_default="cl"
3440         else
3441             cc_default="c99wrap cl"
3442         fi
3443         ld_default="$source_path/compat/windows/mslink"
3444         nm_default="dumpbin -symbols"
3445         ar_default="lib"
3446         case "$arch" in
3447         arm*)
3448             as_default="armasm"
3449             ;;
3450         esac
3451         target_os_default="win32"
3452         # Use a relative path for TMPDIR. This makes sure all the
3453         # ffconf temp files are written with a relative path, avoiding
3454         # issues with msys/win32 path conversion for MSVC parameters
3455         # such as -Fo<file> or -out:<file>.
3456         TMPDIR=.
3457     ;;
3458     icl)
3459         cc_default="icl"
3460         ld_default="xilink"
3461         nm_default="dumpbin -symbols"
3462         ar_default="xilib"
3463         target_os_default="win32"
3464         TMPDIR=.
3465     ;;
3466     gcov)
3467         add_cflags  -fprofile-arcs -ftest-coverage
3468         add_ldflags -fprofile-arcs -ftest-coverage
3469     ;;
3470     llvm-cov)
3471         add_cflags -fprofile-arcs -ftest-coverage
3472         add_ldflags --coverage
3473     ;;
3474     hardened)
3475         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3476         add_cflags   -fno-strict-overflow -fstack-protector-all
3477         add_ldflags  -Wl,-z,relro -Wl,-z,now
3478     ;;
3479     ?*)
3480         die "Unknown toolchain $toolchain"
3481     ;;
3482 esac
3483
3484 test -n "$cross_prefix" && enable cross_compile
3485
3486 if enabled cross_compile; then
3487     test -n "$arch" && test -n "$target_os" ||
3488         die "Must specify target arch and OS when cross-compiling"
3489 fi
3490
3491 ar_default="${cross_prefix}${ar_default}"
3492 cc_default="${cross_prefix}${cc_default}"
3493 cxx_default="${cross_prefix}${cxx_default}"
3494 nm_default="${cross_prefix}${nm_default}"
3495 pkg_config_default="${cross_prefix}${pkg_config_default}"
3496 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3497     ranlib_default="${cross_prefix}${ranlib_default} -D"
3498 else
3499     ranlib_default="${cross_prefix}${ranlib_default}"
3500 fi
3501 strip_default="${cross_prefix}${strip_default}"
3502 windres_default="${cross_prefix}${windres_default}"
3503
3504 sysinclude_default="${sysroot}/usr/include"
3505
3506 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3507     target_exec target_os yasmexe
3508 enabled cross_compile || host_cc_default=$cc
3509 set_default host_cc
3510
3511 pkg_config_fail_message=""
3512 if ! $pkg_config --version >/dev/null 2>&1; then
3513     warn "$pkg_config not found, library detection may fail."
3514     pkg_config=false
3515 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3516     pkg_config_fail_message="
3517 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3518 fi
3519
3520 if test $doxygen != $doxygen_default && \
3521   ! $doxygen --version >/dev/null 2>&1; then
3522     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3523 fi
3524
3525 exesuf() {
3526     case $1 in
3527         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3528     esac
3529 }
3530
3531 EXESUF=$(exesuf $target_os)
3532 HOSTEXESUF=$(exesuf $host_os)
3533
3534 # set temporary file name
3535 : ${TMPDIR:=$TEMPDIR}
3536 : ${TMPDIR:=$TMP}
3537 : ${TMPDIR:=/tmp}
3538
3539 if [ -n "$tempprefix" ] ; then
3540     mktemp(){
3541         echo $tempprefix.${HOSTNAME}.${UID}
3542     }
3543 elif ! check_cmd mktemp -u XXXXXX; then
3544     # simple replacement for missing mktemp
3545     # NOT SAFE FOR GENERAL USE
3546     mktemp(){
3547         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3548     }
3549 fi
3550
3551 tmpfile(){
3552     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3553         (set -C; exec > $tmp) 2>/dev/null ||
3554         die "Unable to create temporary file in $TMPDIR."
3555     append TMPFILES $tmp
3556     eval $1=$tmp
3557 }
3558
3559 trap 'rm -f -- $TMPFILES' EXIT
3560
3561 tmpfile TMPASM .asm
3562 tmpfile TMPC   .c
3563 tmpfile TMPCPP .cpp
3564 tmpfile TMPE   $EXESUF
3565 tmpfile TMPH   .h
3566 tmpfile TMPM   .m
3567 tmpfile TMPO   .o
3568 tmpfile TMPS   .S
3569 tmpfile TMPSH  .sh
3570 tmpfile TMPV   .ver
3571
3572 unset -f mktemp
3573
3574 chmod +x $TMPE
3575
3576 # make sure we can execute files in $TMPDIR
3577 cat > $TMPSH 2>> $logfile <<EOF
3578 #! /bin/sh
3579 EOF
3580 chmod +x $TMPSH >> $logfile 2>&1
3581 if ! $TMPSH >> $logfile 2>&1; then
3582     cat <<EOF
3583 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3584 variable to another directory and make sure that it is not mounted noexec.
3585 EOF
3586     die "Sanity test failed."
3587 fi
3588
3589 armasm_flags(){
3590     for flag; do
3591         case $flag in
3592             # Filter out MSVC cl.exe options from cflags that shouldn't
3593             # be passed to gas-preprocessor
3594             -M[TD]*)                                            ;;
3595             *)                  echo $flag                      ;;
3596         esac
3597    done
3598 }
3599
3600 ccc_flags(){
3601     for flag; do
3602         case $flag in
3603             -std=c99)           echo -c99                       ;;
3604             -mcpu=*)            echo -arch ${flag#*=}           ;;
3605             -mieee)             echo -ieee                      ;;
3606             -O*|-fast)          echo $flag                      ;;
3607             -fno-math-errno)    echo -assume nomath_errno       ;;
3608             -g)                 echo -g3                        ;;
3609             -Wall)              echo -msg_enable level2         ;;
3610             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3611             -Wl,*)              echo $flag                      ;;
3612             -f*|-W*)                                            ;;
3613             *)                  echo $flag                      ;;
3614         esac
3615    done
3616 }
3617
3618 cparser_flags(){
3619     for flag; do
3620         case $flag in
3621             -Wno-switch)             echo -Wno-switch-enum ;;
3622             -Wno-format-zero-length) ;;
3623             -Wdisabled-optimization) ;;
3624             -Wno-pointer-sign)       echo -Wno-other ;;
3625             *)                       echo $flag ;;
3626         esac
3627     done
3628 }
3629
3630 msvc_common_flags(){
3631     for flag; do
3632         case $flag in
3633             # In addition to specifying certain flags under the compiler
3634             # specific filters, they must be specified here as well or else the
3635             # generic catch all at the bottom will print the original flag.
3636             -Wall)                ;;
3637             -std=c99)             ;;
3638             # Common flags
3639             -fomit-frame-pointer) ;;
3640             -g)                   echo -Z7 ;;
3641             -fno-math-errno)      ;;
3642             -fno-common)          ;;
3643             -fno-signed-zeros)    ;;
3644             -fPIC)                ;;
3645             -mthumb)              ;;
3646             -march=*)             ;;
3647             -lz)                  echo zlib.lib ;;
3648             -lavifil32)           echo vfw32.lib ;;
3649             -lavicap32)           echo vfw32.lib user32.lib ;;
3650             -lx264)               echo libx264.lib ;;
3651             -l*)                  echo ${flag#-l}.lib ;;
3652             -LARGEADDRESSAWARE)   echo $flag ;;
3653             -L*)                  echo -libpath:${flag#-L} ;;
3654             *)                    echo $flag ;;
3655         esac
3656     done
3657 }
3658
3659 msvc_flags(){
3660     msvc_common_flags "$@"
3661     for flag; do
3662         case $flag in
3663             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3664                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3665                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3666                                        -wd4307 \
3667                                        -wd4273 -wd4554 -wd4701 ;;
3668         esac
3669     done
3670 }
3671
3672 icl_flags(){
3673     msvc_common_flags "$@"
3674     for flag; do
3675         case $flag in
3676             # Despite what Intel's documentation says -Wall, which is supported
3677             # on Windows, does enable remarks so disable them here.
3678             -Wall)                echo $flag -Qdiag-disable:remark ;;
3679             -std=c99)             echo -Qstd=c99 ;;
3680             -flto)                echo -ipo ;;
3681         esac
3682     done
3683 }
3684
3685 icc_flags(){
3686     for flag; do
3687         case $flag in
3688             -flto)                echo -ipo ;;
3689             *)                    echo $flag ;;
3690         esac
3691     done
3692 }
3693
3694 pgi_flags(){
3695     for flag; do
3696         case $flag in
3697             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3698             -fomit-frame-pointer) echo -Mnoframe ;;
3699             -g)                   echo -gopt ;;
3700             *)                    echo $flag ;;
3701         esac
3702     done
3703 }
3704
3705 suncc_flags(){
3706     for flag; do
3707         case $flag in
3708             -march=*|-mcpu=*)
3709                 case "${flag#*=}" in
3710                     native)                   echo -xtarget=native       ;;
3711                     v9|niagara)               echo -xarch=sparc          ;;
3712                     ultrasparc)               echo -xarch=sparcvis       ;;
3713                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3714                     i586|pentium)             echo -xchip=pentium        ;;
3715                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3716                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3717                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3718                     pentium4*)          echo -xtarget=pentium4           ;;
3719                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3720                     *-sse3)             echo -xarch=sse3                 ;;
3721                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3722                     bonnell)                   echo -xarch=ssse3         ;;
3723                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3724                     westmere)                  echo -xtarget=westmere    ;;
3725                     silvermont)                echo -xarch=sse4_2        ;;
3726                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3727                     core-avx*|ivybridge|haswell|broadwell)
3728                                                echo -xarch=avx           ;;
3729                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3730                     btver1)                    echo -xarch=amdsse4a      ;;
3731                     btver2|bdver*)             echo -xarch=avx           ;;
3732                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3733                     k8|opteron|athlon64|athlon-fx)
3734                                                echo -xarch=sse2a         ;;
3735                     athlon*)                   echo -xarch=pentium_proa  ;;
3736                 esac
3737                 ;;
3738             -std=c99)             echo -xc99              ;;
3739             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3740             -fPIC)                echo -KPIC -xcode=pic32 ;;
3741             -W*,*)                echo $flag              ;;
3742             -f*-*|-W*|-mimpure-text)                      ;;
3743             -shared)              echo -G                 ;;
3744             *)                    echo $flag              ;;
3745         esac
3746     done
3747 }
3748
3749 tms470_flags(){
3750     for flag; do
3751         case $flag in
3752             -march=*|-mcpu=*)
3753                 case "${flag#*=}" in
3754                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3755                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3756                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3757                     armv6*|arm11*)          echo -mv=6   ;;
3758                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3759                                             echo -mv=5e  ;;
3760                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3761                 esac
3762                 ;;
3763             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3764             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3765             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3766             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3767             -msoft-float)   echo --float_support=vfplib       ;;
3768             -O[0-3]|-mf=*)  echo $flag                        ;;
3769             -g)             echo -g -mn                       ;;
3770             -pds=*)         echo $flag                        ;;
3771             -D*|-I*)        echo $flag                        ;;
3772             --gcc|--abi=*)  echo $flag                        ;;
3773             -me)            echo $flag                        ;;
3774         esac
3775     done
3776 }
3777
3778 probe_cc(){
3779     pfx=$1
3780     _cc=$2
3781     first=$3
3782
3783     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3784     unset _ld_o _ldflags _ld_lib _ld_path
3785     unset _depflags _DEPCMD _DEPFLAGS
3786     _flags_filter=echo
3787
3788     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3789         true # no-op to avoid reading stdin in following checks
3790     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3791         _type=llvm_gcc
3792         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3793         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3794         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3795         _cflags_speed='-O3'
3796         _cflags_size='-Os'
3797     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3798         _type=gcc
3799         gcc_version=$($_cc --version | head -n1)
3800         gcc_basever=$($_cc -dumpversion)
3801         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3802         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3803         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3804         case $gcc_basever in
3805             2) ;;
3806             2.*) ;;
3807             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3808         esac
3809         if [ "$first" = true ]; then
3810             case $gcc_basever in
3811                 4.2*)
3812                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3813             esac
3814         fi
3815         _cflags_speed='-O3'
3816         _cflags_size='-Os'
3817     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3818         _type=icc
3819         _ident=$($_cc --version | head -n1)
3820         _depflags='-MMD'
3821         _cflags_speed='-O3'
3822         _cflags_size='-Os'
3823         _cflags_noopt='-O1'
3824         _flags_filter=icc_flags
3825     elif $_cc -v 2>&1 | grep -q xlc; then
3826         _type=xlc
3827         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3828         _cflags_speed='-O5'
3829         _cflags_size='-O5 -qcompact'
3830     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3831         _type=ccc
3832         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3833         _DEPFLAGS='-M'
3834         _cflags_speed='-fast'
3835         _cflags_size='-O1'
3836         _flags_filter=ccc_flags
3837     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3838         test -d "$sysroot" || die "No valid sysroot specified."
3839         _type=armcc
3840         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3841         armcc_conf="$PWD/armcc.conf"
3842         $_cc --arm_linux_configure                 \
3843              --arm_linux_config_file="$armcc_conf" \
3844              --configure_sysroot="$sysroot"        \
3845              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3846              die "Error creating armcc configuration file."
3847         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3848         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3849         as_default="${cross_prefix}gcc"
3850         _depflags='-MMD'
3851         _cflags_speed='-O3'
3852         _cflags_size='-Os'
3853     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3854         _type=tms470
3855         _ident=$($_cc -version | head -n1 | tr -s ' ')
3856         _flags='--gcc --abi=eabi -me'
3857         _cc_e='-ppl -fe=$@'
3858         _cc_o='-fe=$@'
3859         _depflags='-ppa -ppd=$(@:.o=.d)'
3860         _cflags_speed='-O3 -mf=5'
3861         _cflags_size='-O3 -mf=2'
3862         _flags_filter=tms470_flags
3863     elif $_cc -v 2>&1 | grep -q clang; then
3864         _type=clang
3865         _ident=$($_cc --version 2>/dev/null | head -n1)
3866         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3867         _cflags_speed='-O3'
3868         _cflags_size='-Os'
3869     elif $_cc -V 2>&1 | grep -q Sun; then
3870         _type=suncc
3871         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3872         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3873         _DEPFLAGS='-xM1 -xc99'
3874         _ldflags='-std=c99'
3875         _cflags_speed='-O5'
3876         _cflags_size='-O5 -xspace'
3877         _flags_filter=suncc_flags
3878     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3879         _type=pathscale
3880         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3881         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3882         _cflags_speed='-O2'
3883         _cflags_size='-Os'
3884         _flags_filter='filter_out -Wdisabled-optimization'
3885     elif $_cc -v 2>&1 | grep -q Open64; then
3886         _type=open64
3887         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3888         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3889         _cflags_speed='-O2'
3890         _cflags_size='-Os'
3891         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3892     elif $_cc -V 2>&1 | grep -q Portland; then
3893         _type=pgi
3894         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3895         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3896         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3897         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3898         _cflags_noopt="-O"
3899         _flags_filter=pgi_flags
3900     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3901         _type=armasm
3902         _ident=$($_cc | head -n1)
3903         # 4509: "This form of conditional instruction is deprecated"
3904         _flags="-nologo -ignore 4509"
3905         _flags_filter=armasm_flags
3906     elif $_cc 2>&1 | grep -q Intel; then
3907         _type=icl
3908         _ident=$($_cc 2>&1 | head -n1)
3909         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3910         # Not only is O3 broken on 13.x+ but it is slower on all previous
3911         # versions (tested) as well.
3912         _cflags_speed="-O2"
3913         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3914         if $_cc 2>&1 | grep -q Linker; then
3915             _ld_o='-out:$@'
3916         else
3917             _ld_o='-Fe$@'
3918         fi
3919         _cc_o='-Fo$@'
3920         _cc_e='-P'
3921         _flags_filter=icl_flags
3922         _ld_lib='lib%.a'
3923         _ld_path='-libpath:'
3924         # -Qdiag-error to make icl error when seeing certain unknown arguments
3925         _flags='-nologo -Qdiag-error:4044,10157'
3926         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3927         # with MSVC which enables it by default.
3928         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3929         disable stripping
3930     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3931         _type=msvc
3932         _ident=$($_cc 2>&1 | head -n1)
3933         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3934         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3935         _cflags_speed="-O2"
3936         _cflags_size="-O1"
3937         if $_cc -nologo- 2>&1 | grep -q Linker; then
3938             _ld_o='-out:$@'
3939         else
3940             _ld_o='-Fe$@'
3941         fi
3942         _cc_o='-Fo$@'
3943         _cc_e='-P -Fi$@'
3944         _flags_filter=msvc_flags
3945         _ld_lib='lib%.a'
3946         _ld_path='-libpath:'
3947         _flags='-nologo'
3948         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3949         disable stripping
3950     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3951         _type=cparser
3952         _ident=$($_cc --version | head -n1)
3953         _depflags='-MMD'
3954         _cflags_speed='-O4'
3955         _cflags_size='-O2'
3956         _flags_filter=cparser_flags
3957     fi
3958
3959     eval ${pfx}_type=\$_type
3960     eval ${pfx}_ident=\$_ident
3961 }
3962
3963 set_ccvars(){
3964     eval ${1}_C=\${_cc_c-\${${1}_C}}
3965     eval ${1}_E=\${_cc_e-\${${1}_E}}
3966     eval ${1}_O=\${_cc_o-\${${1}_O}}
3967
3968     if [ -n "$_depflags" ]; then
3969         eval ${1}_DEPFLAGS=\$_depflags
3970     else
3971         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3972         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3973         eval DEP${1}FLAGS=\$_flags
3974     fi
3975 }
3976
3977 probe_cc cc "$cc" "true"
3978 cflags_filter=$_flags_filter
3979 cflags_speed=$_cflags_speed
3980 cflags_size=$_cflags_size
3981 cflags_noopt=$_cflags_noopt
3982 add_cflags $_flags $_cflags
3983 cc_ldflags=$_ldflags
3984 set_ccvars CC
3985
3986 probe_cc hostcc "$host_cc"
3987 host_cflags_filter=$_flags_filter
3988 add_host_cflags  $_flags $_cflags
3989 set_ccvars HOSTCC
3990
3991 test -n "$cc_type" && enable $cc_type ||
3992     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3993
3994 : ${as_default:=$cc}
3995 : ${objcc_default:=$cc}
3996 : ${dep_cc_default:=$cc}
3997 : ${ld_default:=$cc}
3998 : ${host_ld_default:=$host_cc}
3999 set_default ar as objcc dep_cc ld host_ld windres
4000
4001 probe_cc as "$as"
4002 asflags_filter=$_flags_filter
4003 add_asflags $_flags $_cflags
4004 set_ccvars AS
4005
4006 probe_cc objcc "$objcc"
4007 objcflags_filter=$_flags_filter
4008 add_objcflags $_flags $_cflags
4009 set_ccvars OBJC
4010
4011 probe_cc ld "$ld"
4012 ldflags_filter=$_flags_filter
4013 add_ldflags $_flags $_ldflags
4014 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4015 LD_O=${_ld_o-$LD_O}
4016 LD_LIB=${_ld_lib-$LD_LIB}
4017 LD_PATH=${_ld_path-$LD_PATH}
4018
4019 probe_cc hostld "$host_ld"
4020 host_ldflags_filter=$_flags_filter
4021 add_host_ldflags $_flags $_ldflags
4022 HOSTLD_O=${_ld_o-$HOSTLD_O}
4023
4024 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4025     probe_cc depcc "$dep_cc"
4026     CCDEP=${_DEPCMD:-$DEPCMD}
4027     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4028     DEPCCFLAGS=$_flags
4029 fi
4030
4031 if $ar 2>&1 | grep -q Microsoft; then
4032     arflags="-nologo"
4033     ar_o='-out:$@'
4034 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4035     arflags="rq"
4036     ar_o='$@'
4037 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4038     arflags='-Xany -r -c'
4039     ar_o='$@'
4040 elif $ar 2>&1 | grep -q "\[D\] "; then
4041     arflags="rcD"
4042     ar_o='$@'
4043 else
4044     arflags="rc"
4045     ar_o='$@'
4046 fi
4047
4048 add_cflags $extra_cflags
4049 add_cxxflags $extra_cxxflags
4050 add_objcflags $extra_objcflags
4051 add_asflags $extra_cflags
4052
4053 if test -n "$sysroot"; then
4054     case "$cc_type" in
4055         gcc|llvm_gcc|clang)
4056             add_cppflags --sysroot="$sysroot"
4057             add_ldflags --sysroot="$sysroot"
4058 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4059             add_cppflags -isysroot "$sysroot"
4060             add_ldflags -isysroot "$sysroot"
4061         ;;
4062         tms470)
4063             add_cppflags -I"$sysinclude"
4064             add_ldflags  --sysroot="$sysroot"
4065         ;;
4066     esac
4067 fi
4068
4069 if test "$cpu" = host; then
4070     enabled cross_compile &&
4071         die "--cpu=host makes no sense when cross-compiling."
4072
4073     case "$cc_type" in
4074         gcc|llvm_gcc)
4075             check_native(){
4076                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4077                 sed -n "/cc1.*$1=/{
4078                             s/.*$1=\\([^ ]*\\).*/\\1/
4079                             p
4080                             q
4081                         }" $TMPE
4082             }
4083             cpu=$(check_native -march || check_native -mcpu)
4084         ;;
4085         clang)
4086             check_native(){
4087                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4088                 sed -n "/cc1.*-target-cpu /{
4089                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4090                             p
4091                             q
4092                         }" $TMPE
4093             }
4094             cpu=$(check_native -march)
4095         ;;
4096     esac
4097
4098     test "${cpu:-host}" = host &&
4099         die "--cpu=host not supported with compiler $cc"
4100 fi
4101
4102 # Deal with common $arch aliases
4103 case "$arch" in
4104     aarch64|arm64)
4105         arch="aarch64"
4106     ;;
4107     arm*|iPad*|iPhone*)
4108         arch="arm"
4109     ;;
4110     mips*|IP*)
4111         case "$arch" in
4112         *el)
4113             add_cppflags -EL
4114             add_ldflags -EL
4115         ;;
4116         *eb)
4117             add_cppflags -EB
4118             add_ldflags -EB
4119         ;;
4120         esac
4121         arch="mips"
4122     ;;
4123     parisc*|hppa*)
4124         arch="parisc"
4125     ;;
4126     "Power Macintosh"|ppc*|powerpc*)
4127         arch="ppc"
4128     ;;
4129     s390|s390x)
4130         arch="s390"
4131     ;;
4132     sh4|sh)
4133         arch="sh4"
4134     ;;
4135     sun4u|sparc*)
4136         arch="sparc"
4137     ;;
4138     tilegx|tile-gx)
4139         arch="tilegx"
4140     ;;
4141     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4142         arch="x86"
4143     ;;
4144 esac
4145
4146 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4147 enable $arch
4148
4149 # Add processor-specific flags
4150 if enabled aarch64; then
4151
4152     case $cpu in
4153         armv*)
4154             cpuflags="-march=$cpu"
4155         ;;
4156         *)
4157             cpuflags="-mcpu=$cpu"
4158         ;;
4159     esac
4160
4161 elif enabled alpha; then
4162
4163     cpuflags="-mcpu=$cpu"
4164
4165 elif enabled arm; then
4166
4167     check_arm_arch() {
4168         check_cpp_condition stddef.h \
4169             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4170             $cpuflags
4171     }
4172
4173     probe_arm_arch() {
4174         if   check_arm_arch 4;        then echo armv4;
4175         elif check_arm_arch 4T;       then echo armv4t;
4176         elif check_arm_arch 5;        then echo armv5;
4177         elif check_arm_arch 5E;       then echo armv5e;
4178         elif check_arm_arch 5T;       then echo armv5t;
4179         elif check_arm_arch 5TE;      then echo armv5te;
4180         elif check_arm_arch 5TEJ;     then echo armv5te;
4181         elif check_arm_arch 6;        then echo armv6;
4182         elif check_arm_arch 6J;       then echo armv6j;
4183         elif check_arm_arch 6K;       then echo armv6k;
4184         elif check_arm_arch 6Z;       then echo armv6z;
4185         elif check_arm_arch 6ZK;      then echo armv6zk;
4186         elif check_arm_arch 6T2;      then echo armv6t2;
4187         elif check_arm_arch 7;        then echo armv7;
4188         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4189         elif check_arm_arch 7S;       then echo armv7-a;
4190         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4191         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4192         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4193         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4194         fi
4195     }
4196
4197     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4198
4199     case $cpu in
4200         armv*)
4201             cpuflags="-march=$cpu"
4202             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4203         ;;
4204         *)
4205             cpuflags="-mcpu=$cpu"
4206             case $cpu in
4207                 cortex-a*)                               subarch=armv7a  ;;
4208                 cortex-r*)                               subarch=armv7r  ;;
4209                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4210                 arm11*)                                  subarch=armv6   ;;
4211                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4212                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4213                 *)                             subarch=$(probe_arm_arch) ;;
4214             esac
4215         ;;
4216     esac
4217
4218     case "$subarch" in
4219         armv5t*)    enable fast_clz                ;;
4220         armv[6-8]*)
4221             enable fast_clz
4222             disabled fast_unaligned || enable fast_unaligned
4223             ;;
4224     esac
4225
4226 elif enabled avr32; then
4227
4228     case $cpu in
4229         ap7[02]0[0-2])
4230             subarch="avr32_ap"
4231             cpuflags="-mpart=$cpu"
4232         ;;
4233         ap)
4234             subarch="avr32_ap"
4235             cpuflags="-march=$cpu"
4236         ;;
4237         uc3[ab]*)
4238             subarch="avr32_uc"
4239             cpuflags="-mcpu=$cpu"
4240         ;;
4241         uc)
4242             subarch="avr32_uc"
4243             cpuflags="-march=$cpu"
4244         ;;
4245     esac
4246
4247 elif enabled bfin; then
4248
4249     cpuflags="-mcpu=$cpu"
4250
4251 elif enabled mips; then
4252
4253     cpuflags="-march=$cpu"
4254
4255     if [ "$cpu" != "generic" ]; then
4256         disable mips32r2
4257         disable mips32r5
4258         disable mips64r2
4259         disable mips32r6
4260         disable mips64r6
4261         disable loongson2
4262         disable loongson3
4263
4264         case $cpu in
4265             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4266                 enable mips32r2
4267                 disable msa
4268             ;;
4269             p5600|i6400)
4270                 disable mipsdsp
4271                 disable mipsdspr2
4272             ;;
4273             loongson*)
4274                 enable loongson2
4275                 enable loongson3
4276                 enable local_aligned_8 local_aligned_16 local_aligned_32
4277                 enable simd_align_16
4278                 enable fast_64bit
4279                 enable fast_clz
4280                 enable fast_cmov
4281                 enable fast_unaligned
4282                 disable aligned_stack
4283                 case $cpu in
4284                     loongson3*)
4285                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4286                     ;;
4287                     loongson2e)
4288                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4289                     ;;
4290                     loongson2f)
4291                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4292                     ;;
4293                 esac
4294             ;;
4295             *)
4296                 # Unknown CPU. Disable everything.
4297                 warn "unknown CPU. Disabling all MIPS optimizations."
4298                 disable mipsfpu
4299                 disable mipsdsp
4300                 disable mipsdspr2
4301                 disable msa
4302                 disable mmi
4303             ;;
4304         esac
4305
4306         case $cpu in
4307             24kc)
4308                 disable mipsfpu
4309                 disable mipsdsp
4310                 disable mipsdspr2
4311             ;;
4312             24kf*)
4313                 disable mipsdsp
4314                 disable mipsdspr2
4315             ;;
4316             24kec|34kc|1004kc)
4317                 disable mipsfpu
4318                 disable mipsdspr2
4319             ;;
4320             24kef*|34kf*|1004kf*)
4321                 disable mipsdspr2
4322             ;;
4323             74kc)
4324                 disable mipsfpu
4325             ;;
4326             p5600)
4327                 enable mips32r5
4328                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4329             ;;
4330             i6400)
4331                 enable mips64r6
4332                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4333             ;;
4334         esac
4335     else
4336         # We do not disable anything. Is up to the user to disable the unwanted features.
4337         warn 'generic cpu selected'
4338     fi
4339
4340 elif enabled ppc; then
4341
4342     disable ldbrx
4343
4344     case $(tolower $cpu) in
4345         601|ppc601|powerpc601)
4346             cpuflags="-mcpu=601"
4347             disable altivec
4348         ;;
4349         603*|ppc603*|powerpc603*)
4350             cpuflags="-mcpu=603"
4351             disable altivec
4352         ;;
4353         604*|ppc604*|powerpc604*)
4354             cpuflags="-mcpu=604"
4355             disable altivec
4356         ;;
4357         g3|75*|ppc75*|powerpc75*)
4358             cpuflags="-mcpu=750"
4359             disable altivec
4360         ;;
4361         g4|745*|ppc745*|powerpc745*)
4362             cpuflags="-mcpu=7450"
4363             disable vsx
4364         ;;
4365         74*|ppc74*|powerpc74*)
4366             cpuflags="-mcpu=7400"
4367             disable vsx
4368         ;;
4369         g5|970|ppc970|powerpc970)
4370             cpuflags="-mcpu=970"
4371             disable vsx
4372         ;;
4373         power[3-6]*)
4374             cpuflags="-mcpu=$cpu"
4375             disable vsx
4376         ;;
4377         power[7-8]*)
4378             cpuflags="-mcpu=$cpu"
4379         ;;
4380         cell)
4381             cpuflags="-mcpu=cell"
4382             enable ldbrx
4383             disable vsx
4384         ;;
4385         e500mc)
4386             cpuflags="-mcpu=e500mc"
4387             disable altivec
4388         ;;
4389         e500v2)
4390             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4391             disable altivec
4392             disable dcbzl
4393         ;;
4394         e500)
4395             cpuflags="-mcpu=8540 -mhard-float"
4396             disable altivec
4397             disable dcbzl
4398         ;;
4399     esac
4400
4401 elif enabled sparc; then
4402
4403     case $cpu in
4404         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4405             cpuflags="-mcpu=$cpu"
4406         ;;
4407         ultrasparc*|niagara[234])
4408             cpuflags="-mcpu=$cpu"
4409         ;;
4410     esac
4411
4412 elif enabled x86; then
4413
4414     case $cpu in
4415         i[345]86|pentium)
4416             cpuflags="-march=$cpu"
4417             disable i686
4418             disable mmx
4419         ;;
4420         # targets that do NOT support nopl and conditional mov (cmov)
4421         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4422             cpuflags="-march=$cpu"
4423             disable i686
4424         ;;
4425         # targets that do support nopl and conditional mov (cmov)
4426         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4427         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4428             cpuflags="-march=$cpu"
4429             enable i686
4430             enable fast_cmov
4431         ;;
4432         # targets that do support conditional mov but on which it's slow
4433         pentium4|pentium4m|prescott|nocona)
4434             cpuflags="-march=$cpu"
4435             enable i686
4436             disable fast_cmov
4437         ;;
4438     esac
4439
4440 fi
4441
4442 if [ "$cpu" != generic ]; then
4443     add_cflags  $cpuflags
4444     add_asflags $cpuflags
4445     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4446 fi
4447
4448 # compiler sanity check
4449 check_exec <<EOF
4450 int main(void){ return 0; }
4451 EOF
4452 if test "$?" != 0; then
4453     echo "$cc is unable to create an executable file."
4454     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4455         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4456         echo "Only do this if you know what cross compiling means."
4457     fi
4458     die "C compiler test failed."
4459 fi
4460
4461 add_cppflags -D_ISOC99_SOURCE
4462 add_cxxflags -D__STDC_CONSTANT_MACROS
4463 check_cflags -std=c99
4464 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4465 #include <stdlib.h>
4466 EOF
4467 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4468 #include <stdlib.h>
4469 EOF
4470
4471 add_host_cppflags -D_ISOC99_SOURCE
4472 check_host_cflags -std=c99
4473 check_host_cflags -Wall
4474 check_host_cflags -O3
4475
4476 check_64bit(){
4477     arch32=$1
4478     arch64=$2
4479     expr=$3
4480     check_code cc "" "int test[2*($expr) - 1]" &&
4481         subarch=$arch64 || subarch=$arch32
4482 }
4483
4484 case "$arch" in
4485     aarch64|alpha|ia64)
4486         spic=$shared
4487     ;;
4488     mips)
4489         check_64bit mips mips64 '_MIPS_SIM > 1'
4490         spic=$shared
4491     ;;
4492     parisc)
4493         check_64bit parisc parisc64 'sizeof(void *) > 4'
4494         spic=$shared
4495     ;;
4496     ppc)
4497         check_64bit ppc ppc64 'sizeof(void *) > 4'
4498         spic=$shared
4499     ;;
4500     s390)
4501         check_64bit s390 s390x 'sizeof(void *) > 4'
4502         spic=$shared
4503     ;;
4504     sparc)
4505         check_64bit sparc sparc64 'sizeof(void *) > 4'
4506         spic=$shared
4507     ;;
4508     x86)
4509         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4510         # Treat x32 as x64 for now. Note it also needs spic=$shared
4511         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4512             subarch=x86_64
4513         if test "$subarch" = "x86_64"; then
4514             spic=$shared
4515         fi
4516     ;;
4517     ppc)
4518         check_cc <<EOF && subarch="ppc64"
4519         int test[(int)sizeof(char*) - 7];
4520 EOF
4521     ;;
4522 esac
4523
4524 enable $subarch
4525 enabled spic && enable_weak pic
4526
4527 # OS specific
4528 case $target_os in
4529     aix)
4530         SHFLAGS=-shared
4531         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4532         enabled shared && add_ldflags -Wl,-brtl
4533         ;;
4534     android)
4535         disable symver
4536         enable section_data_rel_ro
4537         SLIB_INSTALL_NAME='$(SLIBNAME)'
4538         SLIB_INSTALL_LINKS=
4539         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4540         ;;
4541     haiku)
4542         prefix_default="/boot/common"
4543         network_extralibs="-lnetwork"
4544         host_libs=
4545         ;;
4546     sunos)
4547         SHFLAGS='-shared -Wl,-h,$$(@F)'
4548         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4549         network_extralibs="-lsocket -lnsl"
4550         add_cppflags -D__EXTENSIONS__
4551         # When using suncc to build, the Solaris linker will mark
4552         # an executable with each instruction set encountered by
4553         # the Solaris assembler.  As our libraries contain their own
4554         # guards for processor-specific code, instead suppress
4555         # generation of the HWCAPS ELF section on Solaris x86 only.
4556         enabled_all suncc x86 &&
4557             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4558             add_ldflags -Wl,-M,mapfile
4559         nm_default='nm -P -g'
4560         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4561         ;;
4562     netbsd)
4563         disable symver
4564         oss_indev_extralibs="-lossaudio"
4565         oss_outdev_extralibs="-lossaudio"
4566         enabled gcc || check_ldflags -Wl,-zmuldefs
4567         ;;
4568     openbsd|bitrig)
4569         disable symver
4570         SHFLAGS='-shared'
4571         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4572         SLIB_INSTALL_LINKS=
4573         oss_indev_extralibs="-lossaudio"
4574         oss_outdev_extralibs="-lossaudio"
4575         ;;
4576     dragonfly)
4577         disable symver
4578         ;;
4579     freebsd)
4580         ;;
4581     bsd/os)
4582         add_extralibs -lpoll -lgnugetopt
4583         strip="strip -d"
4584         ;;
4585     darwin)
4586         enabled ppc && add_asflags -force_cpusubtype_ALL
4587         install_name_dir_default='$(SHLIBDIR)'
4588         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4589         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4590         strip="${strip} -x"
4591         add_ldflags -Wl,-dynamic,-search_paths_first
4592         SLIBSUF=".dylib"
4593         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4594         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4595         objformat="macho"
4596         enabled x86_64 && objformat="macho64"
4597         enabled_any pic shared x86_64 ||
4598             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4599         check_header dispatch/dispatch.h
4600         ;;
4601     msys*)
4602         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4603         ;;
4604     mingw32*|mingw64*)
4605         if test $target_os = "mingw32ce"; then
4606             disable network
4607         else
4608             target_os=mingw32
4609         fi
4610         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4611         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4612         LIBTARGET=i386
4613         if enabled x86_64; then
4614             LIBTARGET="i386:x86-64"
4615         elif enabled arm; then
4616             LIBTARGET=arm-wince
4617         fi
4618         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4619         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4620         shlibdir_default="$bindir_default"
4621         SLIBPREF=""
4622         SLIBSUF=".dll"
4623         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4624         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4625         dlltool="${cross_prefix}dlltool"
4626         if check_cmd lib.exe -list; then
4627             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4628             if enabled x86_64; then
4629                 LIBTARGET=x64
4630             fi
4631         elif check_cmd $dlltool --version; then
4632             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4633         fi
4634         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4635         SLIB_INSTALL_LINKS=
4636         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4637         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4638         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4639         objformat="win32"
4640         ranlib=:
4641         enable dos_paths
4642         check_ldflags -Wl,--nxcompat,--dynamicbase
4643         # Lets work around some stupidity in binutils.
4644         # ld will strip relocations from executables even though we need them
4645         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4646         # however ld then forgets what the entry point should be (oops) so we
4647         # have to manually (re)set it.
4648         if enabled x86_32; then
4649             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4650         elif enabled x86_64; then
4651             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4652             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4653             # Set image base >4GB for extra entropy with HEASLR
4654             add_ldexeflags -Wl,--image-base,0x140000000
4655             append SHFLAGS -Wl,--image-base,0x180000000
4656         fi
4657         ;;
4658     win32|win64)
4659         disable symver
4660         if enabled shared; then
4661             # Link to the import library instead of the normal static library
4662             # for shared libs.
4663             LD_LIB='%.lib'
4664             # Cannot build both shared and static libs with MSVC or icl.
4665             disable static
4666         fi
4667         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4668         shlibdir_default="$bindir_default"
4669         SLIBPREF=""
4670         SLIBSUF=".dll"
4671         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4672         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4673         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4674         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4675         SLIB_INSTALL_LINKS=
4676         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4677         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4678         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4679         objformat="win32"
4680         ranlib=:
4681         enable dos_paths
4682         ;;
4683     cygwin*)
4684         target_os=cygwin
4685         shlibdir_default="$bindir_default"
4686         SLIBPREF="cyg"
4687         SLIBSUF=".dll"
4688         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4689         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4690         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4691         SLIB_INSTALL_LINKS=
4692         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4693         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4694         objformat="win32"
4695         enable dos_paths
4696         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4697         ;;
4698     *-dos|freedos|opendos)
4699         network_extralibs="-lsocket"
4700         objformat="coff"
4701         enable dos_paths
4702         add_cppflags -U__STRICT_ANSI__
4703         ;;
4704     linux)
4705         enable dv1394
4706         enable section_data_rel_ro
4707         ;;
4708     irix*)
4709         target_os=irix
4710         ranlib="echo ignoring ranlib"
4711         ;;
4712     os/2*)
4713         strip="lxlite -CS"
4714         ln_s="cp -f"
4715         objformat="aout"
4716         add_cppflags -D_GNU_SOURCE
4717         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4718         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4719         LIBSUF="_s.a"
4720         SLIBPREF=""
4721         SLIBSUF=".dll"
4722         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4723         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4724         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4725             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4726             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4727             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4728             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4729         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4730             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4731         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4732         enable dos_paths
4733         enable_weak os2threads
4734         ;;
4735     gnu/kfreebsd)
4736         add_cppflags -D_BSD_SOURCE
4737         ;;
4738     gnu)
4739         ;;
4740     qnx)
4741         add_cppflags -D_QNX_SOURCE
4742         network_extralibs="-lsocket"
4743         ;;
4744     symbian)
4745         SLIBSUF=".dll"
4746         enable dos_paths
4747         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4748         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4749         add_ldflags -Wl,--target1-abs,--no-undefined \
4750                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4751                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4752         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4753                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4754                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4755         ;;
4756     osf1)
4757         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4758         ;;
4759     minix)
4760         ;;
4761     plan9)
4762         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4763                      -D_REENTRANT_SOURCE        \
4764                      -D_RESEARCH_SOURCE         \
4765                      -DFD_SETSIZE=96            \
4766                      -DHAVE_SOCK_OPTS
4767         add_compat strtod.o strtod=avpriv_strtod
4768         network_extralibs='-lbsd'
4769         exeobjs=compat/plan9/main.o
4770         disable ffserver
4771         cp_f='cp'
4772         ;;
4773     none)
4774         ;;
4775     *)
4776         die "Unknown OS '$target_os'."
4777         ;;
4778 esac
4779
4780 # test if creating links works
4781 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4782 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4783 mkdir "$link_dest"
4784 $ln_s "$link_dest" "$link_name"
4785 touch "$link_dest/test_file"
4786 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4787     # create link to source path
4788     [ -e src ] && rm src
4789     $ln_s "$source_path" src
4790     source_link=src
4791 else
4792     # creating directory links doesn't work
4793     # fall back to using the full source path
4794     source_link="$source_path"
4795 fi
4796 # cleanup
4797 rm -r "$link_dest"
4798 rm -r "$link_name"
4799
4800 # determine libc flavour
4801
4802 probe_libc(){
4803     pfx=$1
4804     pfx_no_=${pfx%_}
4805     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4806     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4807         eval ${pfx}libc_type=uclibc
4808         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4809     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4810         eval ${pfx}libc_type=glibc
4811         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4812     # MinGW headers can be installed on Cygwin, so check for newlib first.
4813     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4814         eval ${pfx}libc_type=newlib
4815         add_${pfx}cppflags -U__STRICT_ANSI__
4816     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4817     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4818         eval ${pfx}libc_type=mingw64
4819         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then