Merge commit '0fc61c6ab6912a2f0c40fdd3f3c591bc2a33efd4'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
91   --enable-rpath           use rpath to allow installing libraries in paths
92                            not part of the dynamic linker search path
93                            use rpath when linking programs [USE WITH CARE]
94
95 Licensing options:
96   --enable-gpl             allow use of GPL code, the resulting libs
97                            and binaries will be under GPL [no]
98   --enable-version3        upgrade (L)GPL to version 3 [no]
99   --enable-nonfree         allow use of nonfree code, the resulting libs
100                            and binaries will be unredistributable [no]
101
102 Configuration options:
103   --disable-static         do not build static libraries [no]
104   --enable-shared          build shared libraries [no]
105   --enable-small           optimize for size instead of speed
106   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
107   --enable-gray            enable full grayscale support (slower color)
108   --disable-swscale-alpha  disable alpha channel support in swscale
109   --disable-all            disable building components, libraries and programs
110   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
111   --enable-raise-major     increase major version numbers in sonames [no]
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Hardware accelerators:
152   --disable-d3d11va        disable D3D11VA code [autodetect]
153   --disable-dxva2          disable DXVA2 code [autodetect]
154   --disable-vaapi          disable VAAPI code [autodetect]
155   --disable-vda            disable VDA code [autodetect]
156   --disable-vdpau          disable VDPAU code [autodetect]
157   --enable-videotoolbox    enable VideoToolbox code [autodetect]
158
159 Individual component options:
160   --disable-everything     disable all components listed below
161   --disable-encoder=NAME   disable encoder NAME
162   --enable-encoder=NAME    enable encoder NAME
163   --disable-encoders       disable all encoders
164   --disable-decoder=NAME   disable decoder NAME
165   --enable-decoder=NAME    enable decoder NAME
166   --disable-decoders       disable all decoders
167   --disable-hwaccel=NAME   disable hwaccel NAME
168   --enable-hwaccel=NAME    enable hwaccel NAME
169   --disable-hwaccels       disable all hwaccels
170   --disable-muxer=NAME     disable muxer NAME
171   --enable-muxer=NAME      enable muxer NAME
172   --disable-muxers         disable all muxers
173   --disable-demuxer=NAME   disable demuxer NAME
174   --enable-demuxer=NAME    enable demuxer NAME
175   --disable-demuxers       disable all demuxers
176   --enable-parser=NAME     enable parser NAME
177   --disable-parser=NAME    disable parser NAME
178   --disable-parsers        disable all parsers
179   --enable-bsf=NAME        enable bitstream filter NAME
180   --disable-bsf=NAME       disable bitstream filter NAME
181   --disable-bsfs           disable all bitstream filters
182   --enable-protocol=NAME   enable protocol NAME
183   --disable-protocol=NAME  disable protocol NAME
184   --disable-protocols      disable all protocols
185   --enable-indev=NAME      enable input device NAME
186   --disable-indev=NAME     disable input device NAME
187   --disable-indevs         disable input devices
188   --enable-outdev=NAME     enable output device NAME
189   --disable-outdev=NAME    disable output device NAME
190   --disable-outdevs        disable output devices
191   --disable-devices        disable all devices
192   --enable-filter=NAME     enable filter NAME
193   --disable-filter=NAME    disable filter NAME
194   --disable-filters        disable all filters
195
196 External library support:
197   --enable-avisynth        enable reading of AviSynth script files [no]
198   --disable-bzlib          disable bzlib [autodetect]
199   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
200   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
201   --enable-frei0r          enable frei0r video filtering [no]
202   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
203                            if openssl, librtmp or gmp is not used [no]
204   --enable-gmp             enable gmp, needed for rtmp(t)e support
205                            if openssl or librtmp is not used [no]
206   --enable-gnutls          enable gnutls, needed for https support
207                            if openssl is not used [no]
208   --disable-iconv          disable iconv [autodetect]
209   --enable-ladspa          enable LADSPA audio filtering [no]
210   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
211   --enable-libass          enable libass subtitles rendering,
212                            needed for subtitles and ass filter [no]
213   --enable-libbluray       enable BluRay reading using libbluray [no]
214   --enable-libbs2b         enable bs2b DSP library [no]
215   --enable-libcaca         enable textual display using libcaca [no]
216   --enable-libcelt         enable CELT decoding via libcelt [no]
217   --enable-libcdio         enable audio CD grabbing with libcdio [no]
218   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
219                            and libraw1394 [no]
220   --enable-libdcadec       enable DCA decoding via libdcadec [no]
221   --enable-libfaac         enable AAC encoding via libfaac [no]
222   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
223   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
224   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
225   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
226   --enable-libgme          enable Game Music Emu via libgme [no]
227   --enable-libgsm          enable GSM de/encoding via libgsm [no]
228   --enable-libiec61883     enable iec61883 via libiec61883 [no]
229   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
230   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
231   --enable-libmfx          enable HW acceleration through libmfx
232   --enable-libmodplug      enable ModPlug via libmodplug [no]
233   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
234   --enable-libnut          enable NUT (de)muxing via libnut,
235                            native (de)muxer exists [no]
236   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
237   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
238   --enable-libopencv       enable video filtering via libopencv [no]
239   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
240   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
241   --enable-libopus         enable Opus de/encoding via libopus [no]
242   --enable-libpulse        enable Pulseaudio input via libpulse [no]
243   --enable-librubberband   enable rubberband needed for rubberband filter [no]
244   --enable-libquvi         enable quvi input via libquvi [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-libstagefright-h264  enable H.264 decoding via libstagefright [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
258   --enable-libv4l2         enable libv4l2/v4l-utils [no]
259   --enable-libvidstab      enable video stabilization using vid.stab [no]
260   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
261   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
262   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
263                            native implementation exists [no]
264   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
265   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
266   --enable-libwebp         enable WebP encoding via libwebp [no]
267   --enable-libx264         enable H.264 encoding via x264 [no]
268   --enable-libx265         enable HEVC encoding via x265 [no]
269   --enable-libxavs         enable AVS encoding via xavs [no]
270   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
271   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
272   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
273   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
274   --enable-libxvid         enable Xvid encoding via xvidcore,
275                            native MPEG-4/Xvid encoder exists [no]
276   --enable-libzimg         enable z.lib, needed for zscale filter [no]
277   --enable-libzmq          enable message passing via libzmq [no]
278   --enable-libzvbi         enable teletext support via libzvbi [no]
279   --disable-lzma           disable lzma [autodetect]
280   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
281   --enable-mmal            enable decoding via MMAL [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   --enable-x11grab         enable X11 grabbing (legacy) [no]
294   --disable-xlib           disable xlib [autodetect]
295   --disable-zlib           disable zlib [autodetect]
296
297 Toolchain options:
298   --arch=ARCH              select architecture [$arch]
299   --cpu=CPU                select the minimum required CPU (affects
300                            instruction selection, may crash on older CPUs)
301   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
302   --progs-suffix=SUFFIX    program name suffix []
303   --enable-cross-compile   assume a cross-compiler is used
304   --sysroot=PATH           root of cross-build tree
305   --sysinclude=PATH        location of cross-build system headers
306   --target-os=OS           compiler targets OS [$target_os]
307   --target-exec=CMD        command to run executables on target
308   --target-path=DIR        path to view of build directory on target
309   --target-samples=DIR     path to samples directory on target
310   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
311   --toolchain=NAME         set tool defaults according to NAME
312   --nm=NM                  use nm tool NM [$nm_default]
313   --ar=AR                  use archive tool AR [$ar_default]
314   --as=AS                  use assembler AS [$as_default]
315   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
316   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
317   --cc=CC                  use C compiler CC [$cc_default]
318   --cxx=CXX                use C compiler CXX [$cxx_default]
319   --objcc=OCC              use ObjC compiler OCC [$cc_default]
320   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
321   --ld=LD                  use linker LD [$ld_default]
322   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
323   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
324   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
325   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
326   --host-cc=HOSTCC         use host C compiler HOSTCC
327   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
328   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
329   --host-ld=HOSTLD         use host linker HOSTLD
330   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
331   --host-libs=HLIBS        use libs HLIBS when linking for host
332   --host-os=OS             compiler host OS [$target_os]
333   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
334   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
335   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
336   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
337   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
338   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
339   --extra-libs=ELIBS       add ELIBS [$ELIBS]
340   --extra-version=STRING   version string suffix []
341   --optflags=OPTFLAGS      override optimization-related compiler flags
342   --build-suffix=SUFFIX    library name suffix []
343   --enable-pic             build position-independent code
344   --enable-thumb           compile for Thumb instruction set
345   --enable-lto             use link-time optimization
346   --env="ENV=override"     override the environment variables
347
348 Advanced options (experts only):
349   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
350   --custom-allocator=NAME  use a supported custom allocator
351   --disable-symver         disable symbol versioning
352   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
353   --disable-safe-bitstream-reader
354                            disable buffer boundary checking in bitreaders
355                            (faster, but may crash)
356   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
357   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
358
359 Optimization options (experts only):
360   --disable-asm            disable all assembly optimizations
361   --disable-altivec        disable AltiVec optimizations
362   --disable-vsx            disable VSX optimizations
363   --disable-power8         disable POWER8 optimizations
364   --disable-amd3dnow       disable 3DNow! optimizations
365   --disable-amd3dnowext    disable 3DNow! extended optimizations
366   --disable-mmx            disable MMX optimizations
367   --disable-mmxext         disable MMXEXT optimizations
368   --disable-sse            disable SSE optimizations
369   --disable-sse2           disable SSE2 optimizations
370   --disable-sse3           disable SSE3 optimizations
371   --disable-ssse3          disable SSSE3 optimizations
372   --disable-sse4           disable SSE4 optimizations
373   --disable-sse42          disable SSE4.2 optimizations
374   --disable-avx            disable AVX optimizations
375   --disable-xop            disable XOP optimizations
376   --disable-fma3           disable FMA3 optimizations
377   --disable-fma4           disable FMA4 optimizations
378   --disable-avx2           disable AVX2 optimizations
379   --disable-aesni          disable AESNI optimizations
380   --disable-armv5te        disable armv5te optimizations
381   --disable-armv6          disable armv6 optimizations
382   --disable-armv6t2        disable armv6t2 optimizations
383   --disable-vfp            disable VFP optimizations
384   --disable-neon           disable NEON optimizations
385   --disable-inline-asm     disable use of inline assembly
386   --disable-yasm           disable use of nasm/yasm assembly
387   --disable-mips64r6       disable MIPS64R6 optimizations
388   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
389   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
390   --disable-msa            disable MSA optimizations
391   --disable-mipsfpu        disable floating point MIPS optimizations
392   --disable-mmi            disable Loongson SIMD optimizations
393   --disable-fast-unaligned consider unaligned accesses slow
394
395 Developer options (useful when working on FFmpeg itself):
396   --disable-debug          disable debugging symbols
397   --enable-debug=LEVEL     set the debug level [$debuglevel]
398   --disable-optimizations  disable compiler optimizations
399   --enable-extra-warnings  enable more compiler warnings
400   --disable-stripping      disable stripping of executables and shared libraries
401   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
402                            2 causes a slowdown at runtime.
403   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
404   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
405                            leaks and errors, using the specified valgrind binary.
406                            Cannot be combined with --target-exec
407   --enable-ftrapv          Trap arithmetic overflows
408   --samples=PATH           location of test samples for FATE, if not set use
409                            \$FATE_SAMPLES at make invocation time.
410   --enable-neon-clobber-test check NEON registers for clobbering (should be
411                            used only for debugging purposes)
412   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
413                            should be used only for debugging purposes)
414   --enable-random          randomly enable/disable components
415   --disable-random
416   --enable-random=LIST     randomly enable/disable specific components or
417   --disable-random=LIST    component groups. LIST is a comma-separated list
418                            of NAME[:PROB] entries where NAME is a component
419                            (group) and PROB the probability associated with
420                            NAME (default 0.5).
421   --random-seed=VALUE      seed value for --enable/disable-random
422   --disable-valgrind-backtrace do not print a backtrace under Valgrind
423                            (only applies to --disable-optimizations builds)
424
425 NOTE: Object files are built at the place where configure is launched.
426 EOF
427   exit 0
428 }
429
430 quotes='""'
431 if test -t 1 && which tput >/dev/null 2>&1; then
432     ncolors=$(tput colors)
433     if test -n "$ncolors" && test $ncolors -ge 8; then
434         bold_color=$(tput bold)
435         warn_color=$(tput setaf 3)
436         error_color=$(tput setaf 1)
437         reset_color=$(tput sgr0)
438     fi
439     # 72 used instead of 80 since that's the default of pr
440     ncols=$(tput cols)
441 fi
442 : ${ncols:=72}
443
444 log(){
445     echo "$@" >> $logfile
446 }
447
448 log_file(){
449     log BEGIN $1
450     pr -n -t $1 >> $logfile
451     log END $1
452 }
453
454 warn(){
455     log "WARNING: $*"
456     WARNINGS="${WARNINGS}WARNING: $*\n"
457 }
458
459 die(){
460     log "$@"
461     echo "$error_color$bold_color$@$reset_color"
462     cat <<EOF
463
464 If you think configure made a mistake, make sure you are using the latest
465 version from Git.  If the latest version fails, report the problem to the
466 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
467 EOF
468     if disabled logging; then
469         cat <<EOF
470 Rerun configure with logging enabled (do not use --disable-logging), and
471 include the log this produces with your report.
472 EOF
473     else
474         cat <<EOF
475 Include the log file "$logfile" produced by configure as this will help
476 solve the problem.
477 EOF
478     fi
479     exit 1
480 }
481
482 # Avoid locale weirdness, besides we really just want to translate ASCII.
483 toupper(){
484     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
485 }
486
487 tolower(){
488     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
489 }
490
491 c_escape(){
492     echo "$*" | sed 's/["\\]/\\\0/g'
493 }
494
495 sh_quote(){
496     v=$(echo "$1" | sed "s/'/'\\\\''/g")
497     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
498     echo "$v"
499 }
500
501 cleanws(){
502     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
503 }
504
505 filter(){
506     pat=$1
507     shift
508     for v; do
509         eval "case $v in $pat) echo $v ;; esac"
510     done
511 }
512
513 filter_out(){
514     pat=$1
515     shift
516     for v; do
517         eval "case $v in $pat) ;; *) echo $v ;; esac"
518     done
519 }
520
521 map(){
522     m=$1
523     shift
524     for v; do eval $m; done
525 }
526
527 add_suffix(){
528     suffix=$1
529     shift
530     for v; do echo ${v}${suffix}; done
531 }
532
533 set_all(){
534     value=$1
535     shift
536     for var in $*; do
537         eval $var=$value
538     done
539 }
540
541 set_weak(){
542     value=$1
543     shift
544     for var; do
545         eval : \${$var:=$value}
546     done
547 }
548
549 sanitize_var_name(){
550     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
551 }
552
553 set_safe(){
554     var=$1
555     shift
556     eval $(sanitize_var_name "$var")='$*'
557 }
558
559 get_safe(){
560     eval echo \$$(sanitize_var_name "$1")
561 }
562
563 pushvar(){
564     for pvar in $*; do
565         eval level=\${${pvar}_level:=0}
566         eval ${pvar}_${level}="\$$pvar"
567         eval ${pvar}_level=$(($level+1))
568     done
569 }
570
571 popvar(){
572     for pvar in $*; do
573         eval level=\${${pvar}_level:-0}
574         test $level = 0 && continue
575         eval level=$(($level-1))
576         eval $pvar="\${${pvar}_${level}}"
577         eval ${pvar}_level=$level
578         eval unset ${pvar}_${level}
579     done
580 }
581
582 enable(){
583     set_all yes $*
584 }
585
586 disable(){
587     set_all no $*
588 }
589
590 enable_weak(){
591     set_weak yes $*
592 }
593
594 disable_weak(){
595     set_weak no $*
596 }
597
598 enable_safe(){
599     for var; do
600         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
601     done
602 }
603
604 disable_safe(){
605     for var; do
606         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
607     done
608 }
609
610 do_enable_deep(){
611     for var; do
612         enabled $var && continue
613         eval sel="\$${var}_select"
614         eval sgs="\$${var}_suggest"
615         pushvar var sgs
616         enable_deep $sel
617         popvar sgs
618         enable_deep_weak $sgs
619         popvar var
620     done
621 }
622
623 enable_deep(){
624     do_enable_deep $*
625     enable $*
626 }
627
628 enable_deep_weak(){
629     for var; do
630         disabled $var && continue
631         pushvar var
632         do_enable_deep $var
633         popvar var
634         enable_weak $var
635     done
636 }
637
638 enabled(){
639     test "${1#!}" = "$1" && op='=' || op=!=
640     eval test "x\$${1#!}" $op "xyes"
641 }
642
643 disabled(){
644     test "${1#!}" = "$1" && op='=' || op=!=
645     eval test "x\$${1#!}" $op "xno"
646 }
647
648 enabled_all(){
649     for opt; do
650         enabled $opt || return 1
651     done
652 }
653
654 disabled_all(){
655     for opt; do
656         disabled $opt || return 1
657     done
658 }
659
660 enabled_any(){
661     for opt; do
662         enabled $opt && return 0
663     done
664 }
665
666 disabled_any(){
667     for opt; do
668         disabled $opt && return 0
669     done
670     return 1
671 }
672
673 set_default(){
674     for opt; do
675         eval : \${$opt:=\$${opt}_default}
676     done
677 }
678
679 is_in(){
680     value=$1
681     shift
682     for var in $*; do
683         [ $var = $value ] && return 0
684     done
685     return 1
686 }
687
688 do_check_deps(){
689     for cfg; do
690         cfg="${cfg#!}"
691         enabled ${cfg}_checking && die "Circular dependency for $cfg."
692         disabled ${cfg}_checking && continue
693         enable ${cfg}_checking
694         append allopts $cfg
695
696         eval dep_all="\$${cfg}_deps"
697         eval dep_any="\$${cfg}_deps_any"
698         eval dep_sel="\$${cfg}_select"
699         eval dep_sgs="\$${cfg}_suggest"
700         eval dep_ifa="\$${cfg}_if"
701         eval dep_ifn="\$${cfg}_if_any"
702
703         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
704         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
705         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
706
707         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
708         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
709         enabled_all  $dep_all || disable $cfg
710         enabled_any  $dep_any || disable $cfg
711         disabled_any $dep_sel && disable $cfg
712
713         if enabled $cfg; then
714             enable_deep $dep_sel
715             enable_deep_weak $dep_sgs
716         fi
717
718         disable ${cfg}_checking
719     done
720 }
721
722 check_deps(){
723     unset allopts
724
725     do_check_deps "$@"
726
727     for cfg in $allopts; do
728         enabled $cfg || continue
729         eval dep_extralibs="\$${cfg}_extralibs"
730         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
731     done
732 }
733
734 print_config(){
735     pfx=$1
736     files=$2
737     shift 2
738     map 'eval echo "$v \${$v:-no}"' "$@" |
739     awk "BEGIN { split(\"$files\", files) }
740         {
741             c = \"$pfx\" toupper(\$1);
742             v = \$2;
743             sub(/yes/, 1, v);
744             sub(/no/,  0, v);
745             for (f in files) {
746                 file = files[f];
747                 if (file ~ /\\.h\$/) {
748                     printf(\"#define %s %d\\n\", c, v) >>file;
749                 } else if (file ~ /\\.asm\$/) {
750                     printf(\"%%define %s %d\\n\", c, v) >>file;
751                 } else if (file ~ /\\.mak\$/) {
752                     n = -v ? \"\" : \"!\";
753                     printf(\"%s%s=yes\\n\", n, c) >>file;
754                 } else if (file ~ /\\.texi\$/) {
755                     pre = -v ? \"\" : \"@c \";
756                     yesno = \$2;
757                     c2 = tolower(c);
758                     gsub(/_/, \"-\", c2);
759                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
760                 }
761             }
762         }"
763 }
764
765 print_enabled(){
766     suf=$1
767     shift
768     for v; do
769         enabled $v && printf "%s\n" ${v%$suf};
770     done
771 }
772
773 append(){
774     var=$1
775     shift
776     eval "$var=\"\$$var $*\""
777 }
778
779 prepend(){
780     var=$1
781     shift
782     eval "$var=\"$* \$$var\""
783 }
784
785 unique(){
786     var=$1
787     uniq_list=""
788     for tok in $(eval echo \$$var); do
789         uniq_list="$(filter_out $tok $uniq_list) $tok"
790     done
791     eval "$var=\"${uniq_list}\""
792 }
793
794 add_cppflags(){
795     append CPPFLAGS "$@"
796 }
797
798 add_cflags(){
799     append CFLAGS $($cflags_filter "$@")
800 }
801
802 add_cxxflags(){
803     append CXXFLAGS $($cflags_filter "$@")
804 }
805
806 add_asflags(){
807     append ASFLAGS $($asflags_filter "$@")
808 }
809
810 add_objcflags(){
811     append OBJCFLAGS $($objcflags_filter "$@")
812 }
813
814 add_ldflags(){
815     append LDFLAGS $($ldflags_filter "$@")
816 }
817
818 add_ldexeflags(){
819     append LDEXEFLAGS $($ldflags_filter "$@")
820 }
821
822 add_ldlibflags(){
823     append LDLIBFLAGS $($ldflags_filter "$@")
824 }
825
826 add_stripflags(){
827     append ASMSTRIPFLAGS "$@"
828 }
829
830 add_extralibs(){
831     prepend extralibs $($ldflags_filter "$@")
832 }
833
834 add_host_cppflags(){
835     append host_cppflags "$@"
836 }
837
838 add_host_cflags(){
839     append host_cflags $($host_cflags_filter "$@")
840 }
841
842 add_host_ldflags(){
843     append host_ldflags $($host_ldflags_filter "$@")
844 }
845
846 add_compat(){
847     append compat_objs $1
848     shift
849     map 'add_cppflags -D$v' "$@"
850 }
851
852 check_cmd(){
853     log "$@"
854     "$@" >> $logfile 2>&1
855 }
856
857 check_stat(){
858     log check_stat "$@"
859     stat "$1" >> $logfile 2>&1
860 }
861
862 cc_o(){
863     eval printf '%s\\n' $CC_O
864 }
865
866 cc_e(){
867     eval printf '%s\\n' $CC_E
868 }
869
870 check_cc(){
871     log check_cc "$@"
872     cat > $TMPC
873     log_file $TMPC
874     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
875 }
876
877 check_cxx(){
878     log check_cxx "$@"
879     cat > $TMPCPP
880     log_file $TMPCPP
881     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
882 }
883
884 check_objcc(){
885     log check_objcc "$@"
886     cat > $TMPM
887     log_file $TMPM
888     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
889 }
890
891 check_cpp(){
892     log check_cpp "$@"
893     cat > $TMPC
894     log_file $TMPC
895     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
896 }
897
898 as_o(){
899     eval printf '%s\\n' $AS_O
900 }
901
902 check_as(){
903     log check_as "$@"
904     cat > $TMPS
905     log_file $TMPS
906     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
907 }
908
909 check_inline_asm(){
910     log check_inline_asm "$@"
911     name="$1"
912     code="$2"
913     shift 2
914     disable $name
915     check_cc "$@" <<EOF && enable $name
916 void foo(void){ __asm__ volatile($code); }
917 EOF
918 }
919
920 check_insn(){
921     log check_insn "$@"
922     check_inline_asm ${1}_inline "\"$2\""
923     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
924 }
925
926 check_yasm(){
927     log check_yasm "$@"
928     echo "$1" > $TMPS
929     log_file $TMPS
930     shift 1
931     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
932 }
933
934 ld_o(){
935     eval printf '%s\\n' $LD_O
936 }
937
938 check_ld(){
939     log check_ld "$@"
940     type=$1
941     shift 1
942     flags=$(filter_out '-l*|*.so' $@)
943     libs=$(filter '-l*|*.so' $@)
944     check_$type $($cflags_filter $flags) || return
945     flags=$($ldflags_filter $flags)
946     libs=$($ldflags_filter $libs)
947     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
948 }
949
950 print_include(){
951     hdr=$1
952     test "${hdr%.h}" = "${hdr}" &&
953         echo "#include $hdr"    ||
954         echo "#include <$hdr>"
955 }
956
957 check_code(){
958     log check_code "$@"
959     check=$1
960     headers=$2
961     code=$3
962     shift 3
963     {
964         for hdr in $headers; do
965             print_include $hdr
966         done
967         echo "int main(void) { $code; return 0; }"
968     } | check_$check "$@"
969 }
970
971 check_cppflags(){
972     log check_cppflags "$@"
973     check_cc "$@" <<EOF && append CPPFLAGS "$@"
974 int x;
975 EOF
976 }
977
978 test_cflags(){
979     log test_cflags "$@"
980     set -- $($cflags_filter "$@")
981     check_cc "$@" <<EOF
982 int x;
983 EOF
984 }
985
986 check_cflags(){
987     log check_cflags "$@"
988     test_cflags "$@" && add_cflags "$@"
989 }
990
991 check_cxxflags(){
992     log check_cxxflags "$@"
993     set -- $($cflags_filter "$@")
994     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
995 int x;
996 EOF
997 }
998
999 test_objcflags(){
1000     log test_cflags "$@"
1001     set -- $($cflags_filter "$@")
1002     check_objcc "$@" <<EOF
1003 int x;
1004 EOF
1005 }
1006
1007 check_objcflags(){
1008     log check_cflags "$@"
1009     test_objcflags "$@" && add_objcflags "$@"
1010 }
1011
1012 test_ldflags(){
1013     log test_ldflags "$@"
1014     check_ld "cc" "$@" <<EOF
1015 int main(void){ return 0; }
1016 EOF
1017 }
1018
1019 check_ldflags(){
1020     log check_ldflags "$@"
1021     test_ldflags "$@" && add_ldflags "$@"
1022 }
1023
1024 test_stripflags(){
1025     log test_stripflags "$@"
1026     # call check_cc to get a fresh TMPO
1027     check_cc <<EOF
1028 int main(void) { return 0; }
1029 EOF
1030     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1031 }
1032
1033 check_stripflags(){
1034     log check_stripflags "$@"
1035     test_stripflags "$@" && add_stripflags "$@"
1036 }
1037
1038 check_header(){
1039     log check_header "$@"
1040     header=$1
1041     shift
1042     disable_safe $header
1043     check_cpp "$@" <<EOF && enable_safe $header
1044 #include <$header>
1045 int x;
1046 EOF
1047 }
1048
1049 check_header_objcc(){
1050     log check_header_objcc "$@"
1051     rm -f -- "$TMPO"
1052     header=$1
1053     shift
1054     disable_safe $header
1055     {
1056        echo "#include <$header>"
1057        echo "int main(void) { return 0; }"
1058     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1059 }
1060
1061 check_func(){
1062     log check_func "$@"
1063     func=$1
1064     shift
1065     disable $func
1066     check_ld "cc" "$@" <<EOF && enable $func
1067 extern int $func();
1068 int main(void){ $func(); }
1069 EOF
1070 }
1071
1072 check_complexfunc(){
1073     log check_complexfunc "$@"
1074     func=$1
1075     narg=$2
1076     shift 2
1077     test $narg = 2 && args="f, g" || args="f * I"
1078     disable $func
1079     check_ld "cc" "$@" <<EOF && enable $func
1080 #include <complex.h>
1081 #include <math.h>
1082 float foo(complex float f, complex float g) { return $func($args); }
1083 int main(void){ return (int) foo; }
1084 EOF
1085 }
1086
1087 check_mathfunc(){
1088     log check_mathfunc "$@"
1089     func=$1
1090     narg=$2
1091     shift 2
1092     test $narg = 2 && args="f, g" || args="f"
1093     disable $func
1094     check_ld "cc" "$@" <<EOF && enable $func
1095 #include <math.h>
1096 float foo(float f, float g) { return $func($args); }
1097 int main(void){ return (int) foo; }
1098 EOF
1099 }
1100
1101 check_func_headers(){
1102     log check_func_headers "$@"
1103     headers=$1
1104     funcs=$2
1105     shift 2
1106     {
1107         for hdr in $headers; do
1108             print_include $hdr
1109         done
1110         for func in $funcs; do
1111             echo "long check_$func(void) { return (long) $func; }"
1112         done
1113         echo "int main(void) { return 0; }"
1114     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1115 }
1116
1117 check_class_headers_cpp(){
1118     log check_class_headers_cpp "$@"
1119     headers=$1
1120     classes=$2
1121     shift 2
1122     {
1123         for hdr in $headers; do
1124             echo "#include <$hdr>"
1125         done
1126         echo "int main(void) { "
1127         i=1
1128         for class in $classes; do
1129             echo "$class obj$i;"
1130             i=$(expr $i + 1)
1131         done
1132         echo "return 0; }"
1133     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1134 }
1135
1136 check_cpp_condition(){
1137     log check_cpp_condition "$@"
1138     header=$1
1139     condition=$2
1140     shift 2
1141     check_cpp "$@" <<EOF
1142 #include <$header>
1143 #if !($condition)
1144 #error "unsatisfied condition: $condition"
1145 #endif
1146 EOF
1147 }
1148
1149 check_lib(){
1150     log check_lib "$@"
1151     header="$1"
1152     func="$2"
1153     shift 2
1154     check_header $header && check_func $func "$@" && add_extralibs "$@"
1155 }
1156
1157 check_lib2(){
1158     log check_lib2 "$@"
1159     headers="$1"
1160     funcs="$2"
1161     shift 2
1162     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1163 }
1164
1165 check_lib_cpp(){
1166     log check_lib_cpp "$@"
1167     headers="$1"
1168     classes="$2"
1169     shift 2
1170     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1171 }
1172
1173 check_pkg_config(){
1174     log check_pkg_config "$@"
1175     pkgandversion="$1"
1176     pkg="${1%% *}"
1177     headers="$2"
1178     funcs="$3"
1179     shift 3
1180     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1181     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1182     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1183     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1184         set_safe "${pkg}_cflags" $pkg_cflags   &&
1185         set_safe "${pkg}_libs"   $pkg_libs
1186 }
1187
1188 check_exec(){
1189     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1190 }
1191
1192 check_exec_crash(){
1193     code=$(cat)
1194
1195     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1196     # are safe but may not be available everywhere.  Thus we use
1197     # raise(SIGTERM) instead.  The check is run in a subshell so we
1198     # can redirect the "Terminated" message from the shell.  SIGBUS
1199     # is not defined by standard C so it is used conditionally.
1200
1201     (check_exec "$@") >> $logfile 2>&1 <<EOF
1202 #include <signal.h>
1203 static void sighandler(int sig){
1204     raise(SIGTERM);
1205 }
1206 int foo(void){
1207     $code
1208 }
1209 int (*func_ptr)(void) = foo;
1210 int main(void){
1211     signal(SIGILL, sighandler);
1212     signal(SIGFPE, sighandler);
1213     signal(SIGSEGV, sighandler);
1214 #ifdef SIGBUS
1215     signal(SIGBUS, sighandler);
1216 #endif
1217     return func_ptr();
1218 }
1219 EOF
1220 }
1221
1222 check_type(){
1223     log check_type "$@"
1224     headers=$1
1225     type=$2
1226     shift 2
1227     disable_safe "$type"
1228     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1229 }
1230
1231 check_struct(){
1232     log check_struct "$@"
1233     headers=$1
1234     struct=$2
1235     member=$3
1236     shift 3
1237     disable_safe "${struct}_${member}"
1238     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1239         enable_safe "${struct}_${member}"
1240 }
1241
1242 check_builtin(){
1243     log check_builtin "$@"
1244     name=$1
1245     headers=$2
1246     builtin=$3
1247     shift 3
1248     disable "$name"
1249     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1250 }
1251
1252 check_compile_assert(){
1253     log check_compile_assert "$@"
1254     name=$1
1255     headers=$2
1256     condition=$3
1257     shift 3
1258     disable "$name"
1259     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1260 }
1261
1262 require(){
1263     name="$1"
1264     header="$2"
1265     func="$3"
1266     shift 3
1267     check_lib $header $func "$@" || die "ERROR: $name not found"
1268 }
1269
1270 require2(){
1271     name="$1"
1272     headers="$2"
1273     func="$3"
1274     shift 3
1275     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1276 }
1277
1278 require_cpp(){
1279     name="$1"
1280     headers="$2"
1281     classes="$3"
1282     shift 3
1283     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1284 }
1285
1286 use_pkg_config(){
1287     pkg="$1"
1288     check_pkg_config "$@" || return 1
1289     add_cflags    $(get_safe "${pkg}_cflags")
1290     add_extralibs $(get_safe "${pkg}_libs")
1291 }
1292
1293 require_pkg_config(){
1294     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1295 }
1296
1297 require_libfreetype(){
1298     log require_libfreetype "$@"
1299     pkg="freetype2"
1300     check_cmd $pkg_config --exists --print-errors $pkg \
1301       || die "ERROR: $pkg not found"
1302     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1303     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1304     {
1305         echo "#include <ft2build.h>"
1306         echo "#include FT_FREETYPE_H"
1307         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1308         echo "int main(void) { return 0; }"
1309     } | check_ld "cc" $pkg_cflags $pkg_libs \
1310       && set_safe "${pkg}_cflags" $pkg_cflags \
1311       && set_safe "${pkg}_libs"   $pkg_libs \
1312       || die "ERROR: $pkg not found"
1313     add_cflags    $(get_safe "${pkg}_cflags")
1314     add_extralibs $(get_safe "${pkg}_libs")
1315 }
1316
1317 hostcc_e(){
1318     eval printf '%s\\n' $HOSTCC_E
1319 }
1320
1321 hostcc_o(){
1322     eval printf '%s\\n' $HOSTCC_O
1323 }
1324
1325 check_host_cc(){
1326     log check_host_cc "$@"
1327     cat > $TMPC
1328     log_file $TMPC
1329     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1330 }
1331
1332 check_host_cpp(){
1333     log check_host_cpp "$@"
1334     cat > $TMPC
1335     log_file $TMPC
1336     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1337 }
1338
1339 check_host_cppflags(){
1340     log check_host_cppflags "$@"
1341     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1342 int x;
1343 EOF
1344 }
1345
1346 check_host_cflags(){
1347     log check_host_cflags "$@"
1348     set -- $($host_cflags_filter "$@")
1349     check_host_cc "$@" <<EOF && append host_cflags "$@"
1350 int x;
1351 EOF
1352 }
1353
1354 check_host_cpp_condition(){
1355     log check_host_cpp_condition "$@"
1356     header=$1
1357     condition=$2
1358     shift 2
1359     check_host_cpp "$@" <<EOF
1360 #include <$header>
1361 #if !($condition)
1362 #error "unsatisfied condition: $condition"
1363 #endif
1364 EOF
1365 }
1366
1367 cp_if_changed(){
1368     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1369     mkdir -p "$(dirname $2)"
1370     $cp_f "$1" "$2"
1371 }
1372
1373 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1374 # system-dependent things.
1375
1376 AVCODEC_COMPONENTS="
1377     bsfs
1378     decoders
1379     encoders
1380     hwaccels
1381     parsers
1382 "
1383
1384 AVDEVICE_COMPONENTS="
1385     indevs
1386     outdevs
1387 "
1388 AVFILTER_COMPONENTS="
1389     filters
1390 "
1391 AVFORMAT_COMPONENTS="
1392     demuxers
1393     muxers
1394     protocols
1395 "
1396
1397 AVRESAMPLE_COMPONENTS=""
1398 AVUTIL_COMPONENTS=""
1399
1400 COMPONENT_LIST="
1401     $AVCODEC_COMPONENTS
1402     $AVDEVICE_COMPONENTS
1403     $AVFILTER_COMPONENTS
1404     $AVFORMAT_COMPONENTS
1405     $AVRESAMPLE_COMPONENTS
1406     $AVUTIL_COMPONENTS
1407 "
1408
1409 EXAMPLE_LIST="
1410     avio_reading_example
1411     avio_dir_cmd_example
1412     decoding_encoding_example
1413     demuxing_decoding_example
1414     extract_mvs_example
1415     filter_audio_example
1416     filtering_audio_example
1417     filtering_video_example
1418     metadata_example
1419     muxing_example
1420     qsvdec_example
1421     remuxing_example
1422     resampling_audio_example
1423     scaling_video_example
1424     transcode_aac_example
1425     transcoding_example
1426 "
1427
1428 EXTERNAL_LIBRARY_LIST="
1429     avisynth
1430     bzlib
1431     chromaprint
1432     crystalhd
1433     decklink
1434     frei0r
1435     gcrypt
1436     gmp
1437     gnutls
1438     iconv
1439     ladspa
1440     libaacplus
1441     libass
1442     libbluray
1443     libbs2b
1444     libcaca
1445     libcdio
1446     libcelt
1447     libdc1394
1448     libdcadec
1449     libfaac
1450     libfdk_aac
1451     libflite
1452     libfontconfig
1453     libfreetype
1454     libfribidi
1455     libgme
1456     libgsm
1457     libiec61883
1458     libilbc
1459     libkvazaar
1460     libmfx
1461     libmodplug
1462     libmp3lame
1463     libnut
1464     libopencore_amrnb
1465     libopencore_amrwb
1466     libopencv
1467     libopenh264
1468     libopenjpeg
1469     libopus
1470     libpulse
1471     libquvi
1472     librtmp
1473     librubberband
1474     libschroedinger
1475     libshine
1476     libsmbclient
1477     libsnappy
1478     libsoxr
1479     libspeex
1480     libssh
1481     libstagefright_h264
1482     libtesseract
1483     libtheora
1484     libtwolame
1485     libutvideo
1486     libv4l2
1487     libvidstab
1488     libvo_aacenc
1489     libvo_amrwbenc
1490     libvorbis
1491     libvpx
1492     libwavpack
1493     libwebp
1494     libx264
1495     libx265
1496     libxavs
1497     libxcb
1498     libxcb_shm
1499     libxcb_shape
1500     libxcb_xfixes
1501     libxvid
1502     libzimg
1503     libzmq
1504     libzvbi
1505     lzma
1506     mmal
1507     nvenc
1508     openal
1509     opencl
1510     opengl
1511     openssl
1512     schannel
1513     sdl
1514     securetransport
1515     x11grab
1516     xlib
1517     zlib
1518 "
1519
1520 DOCUMENT_LIST="
1521     doc
1522     htmlpages
1523     manpages
1524     podpages
1525     txtpages
1526 "
1527
1528 FEATURE_LIST="
1529     ftrapv
1530     gray
1531     hardcoded_tables
1532     runtime_cpudetect
1533     safe_bitstream_reader
1534     shared
1535     small
1536     static
1537     swscale_alpha
1538 "
1539
1540 HWACCEL_LIST="
1541     d3d11va
1542     dxva2
1543     vaapi
1544     vda
1545     vdpau
1546     videotoolbox
1547     xvmc
1548 "
1549
1550 LIBRARY_LIST="
1551     avcodec
1552     avdevice
1553     avfilter
1554     avformat
1555     avresample
1556     avutil
1557     postproc
1558     swresample
1559     swscale
1560 "
1561
1562 LICENSE_LIST="
1563     gpl
1564     nonfree
1565     version3
1566 "
1567
1568 PROGRAM_LIST="
1569     ffplay
1570     ffprobe
1571     ffserver
1572     ffmpeg
1573 "
1574
1575 SUBSYSTEM_LIST="
1576     dct
1577     dwt
1578     error_resilience
1579     faan
1580     fast_unaligned
1581     fft
1582     lsp
1583     lzo
1584     mdct
1585     pixelutils
1586     network
1587     rdft
1588 "
1589
1590 CONFIG_LIST="
1591     $COMPONENT_LIST
1592     $DOCUMENT_LIST
1593     $EXAMPLE_LIST
1594     $EXTERNAL_LIBRARY_LIST
1595     $FEATURE_LIST
1596     $HWACCEL_LIST
1597     $LICENSE_LIST
1598     $LIBRARY_LIST
1599     $PROGRAM_LIST
1600     $SUBSYSTEM_LIST
1601     fontconfig
1602     incompatible_libav_abi
1603     memalign_hack
1604     memory_poisoning
1605     neon_clobber_test
1606     pic
1607     pod2man
1608     raise_major
1609     thumb
1610     valgrind_backtrace
1611     xmm_clobber_test
1612 "
1613
1614 THREADS_LIST="
1615     pthreads
1616     os2threads
1617     w32threads
1618 "
1619
1620 ATOMICS_LIST="
1621     atomics_gcc
1622     atomics_suncc
1623     atomics_win32
1624 "
1625
1626 ARCH_LIST="
1627     aarch64
1628     alpha
1629     arm
1630     avr32
1631     avr32_ap
1632     avr32_uc
1633     bfin
1634     ia64
1635     m68k
1636     mips
1637     mips64
1638     parisc
1639     ppc
1640     ppc64
1641     s390
1642     sh4
1643     sparc
1644     sparc64
1645     tilegx
1646     tilepro
1647     tomi
1648     x86
1649     x86_32
1650     x86_64
1651 "
1652
1653 ARCH_EXT_LIST_ARM="
1654     armv5te
1655     armv6
1656     armv6t2
1657     armv8
1658     neon
1659     vfp
1660     vfpv3
1661     setend
1662 "
1663
1664 ARCH_EXT_LIST_MIPS="
1665     mipsfpu
1666     mips32r2
1667     mips64r6
1668     mipsdsp
1669     mipsdspr2
1670     msa
1671 "
1672
1673 ARCH_EXT_LIST_LOONGSON="
1674     loongson2
1675     loongson3
1676     mmi
1677 "
1678
1679 ARCH_EXT_LIST_X86_SIMD="
1680     aesni
1681     amd3dnow
1682     amd3dnowext
1683     avx
1684     avx2
1685     fma3
1686     fma4
1687     mmx
1688     mmxext
1689     sse
1690     sse2
1691     sse3
1692     sse4
1693     sse42
1694     ssse3
1695     xop
1696 "
1697
1698 ARCH_EXT_LIST_PPC="
1699     altivec
1700     dcbzl
1701     ldbrx
1702     power8
1703     ppc4xx
1704     vsx
1705 "
1706
1707 ARCH_EXT_LIST_X86="
1708     $ARCH_EXT_LIST_X86_SIMD
1709     cpunop
1710     i686
1711 "
1712
1713 ARCH_EXT_LIST="
1714     $ARCH_EXT_LIST_ARM
1715     $ARCH_EXT_LIST_PPC
1716     $ARCH_EXT_LIST_X86
1717     $ARCH_EXT_LIST_MIPS
1718     $ARCH_EXT_LIST_LOONGSON
1719 "
1720
1721 ARCH_FEATURES="
1722     aligned_stack
1723     fast_64bit
1724     fast_clz
1725     fast_cmov
1726     local_aligned_8
1727     local_aligned_16
1728     local_aligned_32
1729     simd_align_16
1730 "
1731
1732 BUILTIN_LIST="
1733     atomic_cas_ptr
1734     atomic_compare_exchange
1735     machine_rw_barrier
1736     MemoryBarrier
1737     mm_empty
1738     rdtsc
1739     sarestart
1740     sync_val_compare_and_swap
1741 "
1742 HAVE_LIST_CMDLINE="
1743     inline_asm
1744     symver
1745     yasm
1746 "
1747
1748 HAVE_LIST_PUB="
1749     bigendian
1750     fast_unaligned
1751     incompatible_libav_abi
1752 "
1753
1754 HEADERS_LIST="
1755     alsa_asoundlib_h
1756     altivec_h
1757     arpa_inet_h
1758     asm_types_h
1759     cdio_paranoia_h
1760     cdio_paranoia_paranoia_h
1761     dev_bktr_ioctl_bt848_h
1762     dev_bktr_ioctl_meteor_h
1763     dev_ic_bt8xx_h
1764     dev_video_bktr_ioctl_bt848_h
1765     dev_video_meteor_ioctl_meteor_h
1766     direct_h
1767     dirent_h
1768     dlfcn_h
1769     d3d11_h
1770     dxva_h
1771     ES2_gl_h
1772     gsm_h
1773     io_h
1774     mach_mach_time_h
1775     machine_ioctl_bt848_h
1776     machine_ioctl_meteor_h
1777     malloc_h
1778     openjpeg_1_5_openjpeg_h
1779     OpenGL_gl3_h
1780     poll_h
1781     sndio_h
1782     soundcard_h
1783     sys_mman_h
1784     sys_param_h
1785     sys_resource_h
1786     sys_select_h
1787     sys_soundcard_h
1788     sys_time_h
1789     sys_un_h
1790     sys_videoio_h
1791     termios_h
1792     udplite_h
1793     unistd_h
1794     valgrind_valgrind_h
1795     windows_h
1796     winsock2_h
1797 "
1798
1799 INTRINSICS_LIST="
1800     intrinsics_neon
1801 "
1802
1803 COMPLEX_FUNCS="
1804     cabs
1805     cexp
1806 "
1807
1808 MATH_FUNCS="
1809     atanf
1810     atan2f
1811     cbrt
1812     cbrtf
1813     copysign
1814     cosf
1815     erf
1816     exp2
1817     exp2f
1818     expf
1819     hypot
1820     isinf
1821     isnan
1822     ldexpf
1823     llrint
1824     llrintf
1825     log2
1826     log2f
1827     log10f
1828     lrint
1829     lrintf
1830     powf
1831     rint
1832     round
1833     roundf
1834     sinf
1835     trunc
1836     truncf
1837 "
1838
1839 SYSTEM_FUNCS="
1840     access
1841     aligned_malloc
1842     clock_gettime
1843     closesocket
1844     CommandLineToArgvW
1845     CoTaskMemFree
1846     CryptGenRandom
1847     dlopen
1848     fcntl
1849     flt_lim
1850     fork
1851     getaddrinfo
1852     gethrtime
1853     getopt
1854     GetProcessAffinityMask
1855     GetProcessMemoryInfo
1856     GetProcessTimes
1857     getrusage
1858     GetSystemTimeAsFileTime
1859     gettimeofday
1860     glob
1861     glXGetProcAddress
1862     gmtime_r
1863     inet_aton
1864     isatty
1865     jack_port_get_latency_range
1866     kbhit
1867     localtime_r
1868     lstat
1869     lzo1x_999_compress
1870     mach_absolute_time
1871     MapViewOfFile
1872     memalign
1873     mkstemp
1874     mmap
1875     mprotect
1876     nanosleep
1877     PeekNamedPipe
1878     posix_memalign
1879     pthread_cancel
1880     sched_getaffinity
1881     SetConsoleTextAttribute
1882     SetConsoleCtrlHandler
1883     setmode
1884     setrlimit
1885     Sleep
1886     strerror_r
1887     sysconf
1888     sysctl
1889     usleep
1890     UTGetOSTypeFromString
1891     VirtualAlloc
1892     wglGetProcAddress
1893 "
1894
1895 TOOLCHAIN_FEATURES="
1896     as_dn_directive
1897     as_func
1898     as_object_arch
1899     asm_mod_q
1900     attribute_may_alias
1901     attribute_packed
1902     ebp_available
1903     ebx_available
1904     gnu_as
1905     gnu_windres
1906     ibm_asm
1907     inline_asm_labels
1908     inline_asm_nonlocal_labels
1909     inline_asm_direct_symbol_refs
1910     pragma_deprecated
1911     rsync_contimeout
1912     symver_asm_label
1913     symver_gnu_asm
1914     vfp_args
1915     xform_asm
1916     xmm_clobbers
1917 "
1918
1919 TYPES_LIST="
1920     CONDITION_VARIABLE_Ptr
1921     socklen_t
1922     struct_addrinfo
1923     struct_group_source_req
1924     struct_ip_mreq_source
1925     struct_ipv6_mreq
1926     struct_pollfd
1927     struct_rusage_ru_maxrss
1928     struct_sctp_event_subscribe
1929     struct_sockaddr_in6
1930     struct_sockaddr_sa_len
1931     struct_sockaddr_storage
1932     struct_stat_st_mtim_tv_nsec
1933     struct_v4l2_frmivalenum_discrete
1934 "
1935
1936 HAVE_LIST="
1937     $ARCH_EXT_LIST
1938     $(add_suffix _external $ARCH_EXT_LIST)
1939     $(add_suffix _inline   $ARCH_EXT_LIST)
1940     $ARCH_FEATURES
1941     $ATOMICS_LIST
1942     $BUILTIN_LIST
1943     $COMPLEX_FUNCS
1944     $HAVE_LIST_CMDLINE
1945     $HAVE_LIST_PUB
1946     $HEADERS_LIST
1947     $INTRINSICS_LIST
1948     $MATH_FUNCS
1949     $SYSTEM_FUNCS
1950     $THREADS_LIST
1951     $TOOLCHAIN_FEATURES
1952     $TYPES_LIST
1953     atomics_native
1954     dos_paths
1955     dxva2api_cobj
1956     dxva2_lib
1957     winrt
1958     libc_msvcrt
1959     libdc1394_1
1960     libdc1394_2
1961     makeinfo
1962     makeinfo_html
1963     perl
1964     pod2man
1965     sdl
1966     section_data_rel_ro
1967     texi2html
1968     threads
1969     vaapi_x11
1970     vdpau_x11
1971     xlib
1972 "
1973
1974 # options emitted with CONFIG_ prefix but not available on the command line
1975 CONFIG_EXTRA="
1976     aandcttables
1977     ac3dsp
1978     audio_frame_queue
1979     audiodsp
1980     blockdsp
1981     bswapdsp
1982     cabac
1983     dvprofile
1984     exif
1985     faandct
1986     faanidct
1987     fdctdsp
1988     flacdsp
1989     fmtconvert
1990     frame_thread_encoder
1991     g722dsp
1992     golomb
1993     gplv3
1994     h263dsp
1995     h264chroma
1996     h264dsp
1997     h264pred
1998     h264qpel
1999     hpeldsp
2000     huffman
2001     huffyuvdsp
2002     huffyuvencdsp
2003     idctdsp
2004     iirfilter
2005     imdct15
2006     intrax8
2007     ividsp
2008     jpegtables
2009     libx262
2010     lgplv3
2011     llauddsp
2012     llviddsp
2013     lpc
2014     lzf
2015     me_cmp
2016     mpeg_er
2017     mpegaudio
2018     mpegaudiodsp
2019     mpegvideo
2020     mpegvideoenc
2021     mss34dsp
2022     pixblockdsp
2023     qpeldsp
2024     qsv
2025     qsvdec
2026     qsvenc
2027     rangecoder
2028     riffdec
2029     riffenc
2030     rtpdec
2031     rtpenc_chain
2032     rv34dsp
2033     sinewin
2034     snappy
2035     startcode
2036     texturedsp
2037     texturedspenc
2038     tpeldsp
2039     videodsp
2040     vp3dsp
2041     vp56dsp
2042     vp8dsp
2043     wma_freqs
2044     wmv2dsp
2045 "
2046
2047 CMDLINE_SELECT="
2048     $ARCH_EXT_LIST
2049     $CONFIG_LIST
2050     $HAVE_LIST_CMDLINE
2051     $THREADS_LIST
2052     asm
2053     cross_compile
2054     debug
2055     extra_warnings
2056     logging
2057     lto
2058     optimizations
2059     rpath
2060     stripping
2061 "
2062
2063 PATHS_LIST="
2064     bindir
2065     datadir
2066     docdir
2067     incdir
2068     libdir
2069     mandir
2070     pkgconfigdir
2071     prefix
2072     shlibdir
2073 "
2074
2075 CMDLINE_SET="
2076     $PATHS_LIST
2077     ar
2078     arch
2079     as
2080     assert_level
2081     build_suffix
2082     cc
2083     objcc
2084     cpu
2085     cross_prefix
2086     custom_allocator
2087     cxx
2088     dep_cc
2089     doxygen
2090     env
2091     extra_version
2092     gas
2093     host_cc
2094     host_cflags
2095     host_ld
2096     host_ldflags
2097     host_libs
2098     host_os
2099     install
2100     ld
2101     logfile
2102     malloc_prefix
2103     nm
2104     optflags
2105     pkg_config
2106     pkg_config_flags
2107     progs_suffix
2108     random_seed
2109     ranlib
2110     samples
2111     strip
2112     sws_max_filter_size
2113     sysinclude
2114     sysroot
2115     target_exec
2116     target_os
2117     target_path
2118     target_samples
2119     tempprefix
2120     toolchain
2121     valgrind
2122     yasmexe
2123 "
2124
2125 CMDLINE_APPEND="
2126     extra_cflags
2127     extra_cxxflags
2128     extra_objcflags
2129     host_cppflags
2130 "
2131
2132 # code dependency declarations
2133
2134 # architecture extensions
2135
2136 armv5te_deps="arm"
2137 armv6_deps="arm"
2138 armv6t2_deps="arm"
2139 armv8_deps="aarch64"
2140 neon_deps_any="aarch64 arm"
2141 intrinsics_neon_deps="neon"
2142 vfp_deps_any="aarch64 arm"
2143 vfpv3_deps="vfp"
2144 setend_deps="arm"
2145
2146 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2147
2148 mipsfpu_deps="mips"
2149 mipsdsp_deps="mips"
2150 mipsdspr2_deps="mips"
2151 mips32r2_deps="mips"
2152 mips64r6_deps="mips"
2153 msa_deps="mips"
2154 mmi_deps="mips"
2155
2156 altivec_deps="ppc"
2157 dcbzl_deps="ppc"
2158 ldbrx_deps="ppc"
2159 ppc4xx_deps="ppc"
2160 vsx_deps="altivec"
2161 power8_deps="vsx"
2162
2163 cpunop_deps="i686"
2164 x86_64_select="i686"
2165 x86_64_suggest="fast_cmov"
2166
2167 amd3dnow_deps="mmx"
2168 amd3dnowext_deps="amd3dnow"
2169 i686_deps="x86"
2170 mmx_deps="x86"
2171 mmxext_deps="mmx"
2172 sse_deps="mmxext"
2173 sse2_deps="sse"
2174 sse3_deps="sse2"
2175 ssse3_deps="sse3"
2176 sse4_deps="ssse3"
2177 sse42_deps="sse4"
2178 aesni_deps="sse42"
2179 avx_deps="sse42"
2180 xop_deps="avx"
2181 fma3_deps="avx"
2182 fma4_deps="avx"
2183 avx2_deps="avx"
2184
2185 mmx_external_deps="yasm"
2186 mmx_inline_deps="inline_asm"
2187 mmx_suggest="mmx_external mmx_inline"
2188
2189 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2190     eval dep=\$${ext}_deps
2191     eval ${ext}_external_deps='"${dep}_external"'
2192     eval ${ext}_inline_deps='"${dep}_inline"'
2193     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2194 done
2195
2196 aligned_stack_if_any="aarch64 ppc x86"
2197 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2198 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2199 fast_unaligned_if_any="aarch64 ppc x86"
2200 simd_align_16_if_any="altivec neon sse"
2201
2202 # system capabilities
2203 symver_if_any="symver_asm_label symver_gnu_asm"
2204 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2205
2206 # threading support
2207 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2208 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2209 atomics_win32_if="MemoryBarrier"
2210 atomics_native_if_any="$ATOMICS_LIST"
2211 w32threads_deps="atomics_native"
2212 threads_if_any="$THREADS_LIST"
2213
2214 # subsystems
2215 dct_select="rdft"
2216 error_resilience_select="me_cmp"
2217 faandct_deps="faan fdctdsp"
2218 faanidct_deps="faan idctdsp"
2219 frame_thread_encoder_deps="encoders threads"
2220 intrax8_select="error_resilience"
2221 mdct_select="fft"
2222 rdft_select="fft"
2223 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2224 mpeg_er_select="error_resilience"
2225 mpegaudio_select="mpegaudiodsp"
2226 mpegaudiodsp_select="dct"
2227 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2228 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2229 qsvdec_select="qsv"
2230 qsvenc_select="qsv"
2231
2232 # decoders / encoders
2233 aac_decoder_select="imdct15 mdct sinewin"
2234 aac_fixed_decoder_select="mdct sinewin"
2235 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2236 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2237 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2238 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2239 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2240 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2241 adpcm_g722_decoder_select="g722dsp"
2242 adpcm_g722_encoder_select="g722dsp"
2243 aic_decoder_select="golomb idctdsp"
2244 alac_encoder_select="lpc"
2245 als_decoder_select="bswapdsp"
2246 amrnb_decoder_select="lsp"
2247 amrwb_decoder_select="lsp"
2248 amv_decoder_select="sp5x_decoder exif"
2249 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2250 ape_decoder_select="bswapdsp llauddsp"
2251 apng_decoder_select="zlib"
2252 apng_encoder_select="huffyuvencdsp zlib"
2253 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2254 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2255 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2256 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2257 atrac1_decoder_select="mdct sinewin"
2258 atrac3_decoder_select="mdct"
2259 atrac3p_decoder_select="mdct sinewin"
2260 avrn_decoder_select="exif jpegtables"
2261 bink_decoder_select="blockdsp hpeldsp"
2262 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2263 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2264 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2265 cllc_decoder_select="bswapdsp"
2266 comfortnoise_encoder_select="lpc"
2267 cook_decoder_select="audiodsp mdct sinewin"
2268 cscd_decoder_select="lzo"
2269 cscd_decoder_suggest="zlib"
2270 dca_decoder_select="fmtconvert mdct"
2271 dds_decoder_select="texturedsp"
2272 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2273 dnxhd_decoder_select="blockdsp idctdsp"
2274 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2275 dvvideo_decoder_select="dvprofile idctdsp"
2276 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2277 dxa_decoder_select="zlib"
2278 dxv_decoder_select="lzf texturedsp"
2279 eac3_decoder_select="ac3_decoder"
2280 eac3_encoder_select="ac3_encoder"
2281 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2282 eatgq_decoder_select="aandcttables"
2283 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2284 exr_decoder_select="zlib"
2285 ffv1_decoder_select="golomb rangecoder"
2286 ffv1_encoder_select="rangecoder"
2287 ffvhuff_decoder_select="huffyuv_decoder"
2288 ffvhuff_encoder_select="huffyuv_encoder"
2289 fic_decoder_select="golomb"
2290 flac_decoder_select="flacdsp golomb"
2291 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2292 flashsv_decoder_select="zlib"
2293 flashsv_encoder_select="zlib"
2294 flashsv2_encoder_select="zlib"
2295 flashsv2_decoder_select="zlib"
2296 flv_decoder_select="h263_decoder"
2297 flv_encoder_select="h263_encoder"
2298 fourxm_decoder_select="blockdsp bswapdsp"
2299 fraps_decoder_select="bswapdsp huffman"
2300 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2301 g729_decoder_select="audiodsp"
2302 h261_decoder_select="mpegvideo"
2303 h261_encoder_select="aandcttables mpegvideoenc"
2304 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2305 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2306 h263i_decoder_select="h263_decoder"
2307 h263p_decoder_select="h263_decoder"
2308 h263p_encoder_select="h263_encoder"
2309 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2310 h264_decoder_suggest="error_resilience"
2311 h264_qsv_decoder_deps="libmfx"
2312 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2313 h264_qsv_encoder_deps="libmfx"
2314 h264_qsv_encoder_select="qsvenc"
2315 hap_decoder_select="snappy texturedsp"
2316 hap_encoder_deps="libsnappy"
2317 hap_encoder_select="texturedspenc"
2318 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2319 hevc_qsv_encoder_deps="libmfx"
2320 hevc_qsv_decoder_deps="libmfx"
2321 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2322 hevc_qsv_encoder_select="qsvenc"
2323 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2324 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2325 iac_decoder_select="imc_decoder"
2326 imc_decoder_select="bswapdsp fft mdct sinewin"
2327 indeo3_decoder_select="hpeldsp"
2328 indeo4_decoder_select="ividsp"
2329 indeo5_decoder_select="ividsp"
2330 interplay_video_decoder_select="hpeldsp"
2331 jpegls_decoder_select="golomb mjpeg_decoder"
2332 jpegls_encoder_select="golomb"
2333 jv_decoder_select="blockdsp"
2334 lagarith_decoder_select="huffyuvdsp"
2335 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2336 loco_decoder_select="golomb"
2337 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2338 metasound_decoder_select="lsp mdct sinewin"
2339 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2340 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2341 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2342 mjpegb_decoder_select="mjpeg_decoder"
2343 mlp_decoder_select="mlp_parser"
2344 motionpixels_decoder_select="bswapdsp"
2345 mp1_decoder_select="mpegaudio"
2346 mp1float_decoder_select="mpegaudio"
2347 mp2_decoder_select="mpegaudio"
2348 mp2float_decoder_select="mpegaudio"
2349 mp3_decoder_select="mpegaudio"
2350 mp3adu_decoder_select="mpegaudio"
2351 mp3adufloat_decoder_select="mpegaudio"
2352 mp3float_decoder_select="mpegaudio"
2353 mp3on4_decoder_select="mpegaudio"
2354 mp3on4float_decoder_select="mpegaudio"
2355 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2356 mpc8_decoder_select="mpegaudiodsp"
2357 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2358 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2359 mpegvideo_decoder_select="mpegvideo"
2360 mpeg1video_decoder_select="mpegvideo"
2361 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2362 mpeg2video_decoder_select="mpegvideo"
2363 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2364 mpeg2_qsv_decoder_deps="libmfx"
2365 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2366 mpeg2_qsv_encoder_deps="libmfx"
2367 mpeg2_qsv_encoder_select="qsvenc"
2368 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2369 mpeg4_encoder_select="h263_encoder"
2370 msa1_decoder_select="mss34dsp"
2371 msmpeg4v1_decoder_select="h263_decoder"
2372 msmpeg4v2_decoder_select="h263_decoder"
2373 msmpeg4v2_encoder_select="h263_encoder"
2374 msmpeg4v3_decoder_select="h263_decoder"
2375 msmpeg4v3_encoder_select="h263_encoder"
2376 mss2_decoder_select="vc1_decoder"
2377 mts2_decoder_select="mss34dsp"
2378 mxpeg_decoder_select="mjpeg_decoder"
2379 nellymoser_decoder_select="mdct sinewin"
2380 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2381 nuv_decoder_select="idctdsp lzo"
2382 on2avc_decoder_select="mdct"
2383 opus_decoder_deps="swresample"
2384 opus_decoder_select="imdct15"
2385 png_decoder_select="zlib"
2386 png_encoder_select="huffyuvencdsp zlib"
2387 prores_decoder_select="blockdsp idctdsp"
2388 prores_encoder_select="fdctdsp"
2389 qcelp_decoder_select="lsp"
2390 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2391 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2392 ra_144_decoder_select="audiodsp"
2393 ralf_decoder_select="golomb"
2394 rawvideo_decoder_select="bswapdsp"
2395 rscc_decoder_select="zlib"
2396 rtjpeg_decoder_select="me_cmp"
2397 rv10_decoder_select="h263_decoder"
2398 rv10_encoder_select="h263_encoder"
2399 rv20_decoder_select="h263_decoder"
2400 rv20_encoder_select="h263_encoder"
2401 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2402 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2403 screenpresso_decoder_select="zlib"
2404 shorten_decoder_select="golomb"
2405 sipr_decoder_select="lsp"
2406 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2407 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2408 sonic_decoder_select="golomb rangecoder"
2409 sonic_encoder_select="golomb rangecoder"
2410 sonic_ls_encoder_select="golomb rangecoder"
2411 sp5x_decoder_select="mjpeg_decoder"
2412 svq1_decoder_select="hpeldsp"
2413 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2414 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2415 svq3_decoder_suggest="zlib"
2416 tak_decoder_select="audiodsp"
2417 tdsc_decoder_select="zlib mjpeg_decoder"
2418 theora_decoder_select="vp3_decoder"
2419 thp_decoder_select="mjpeg_decoder"
2420 tiff_decoder_suggest="zlib lzma"
2421 tiff_encoder_suggest="zlib"
2422 truehd_decoder_select="mlp_parser"
2423 truemotion2_decoder_select="bswapdsp"
2424 truespeech_decoder_select="bswapdsp"
2425 tscc_decoder_select="zlib"
2426 twinvq_decoder_select="mdct lsp sinewin"
2427 txd_decoder_select="texturedsp"
2428 utvideo_decoder_select="bswapdsp"
2429 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2430 vble_decoder_select="huffyuvdsp"
2431 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2432 vc1image_decoder_select="vc1_decoder"
2433 vc1_qsv_decoder_deps="libmfx"
2434 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2435 vorbis_decoder_select="mdct"
2436 vorbis_encoder_select="mdct"
2437 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2438 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2439 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2440 vp6a_decoder_select="vp6_decoder"
2441 vp6f_decoder_select="vp6_decoder"
2442 vp7_decoder_select="h264pred videodsp vp8dsp"
2443 vp8_decoder_select="h264pred videodsp vp8dsp"
2444 vp9_decoder_select="videodsp vp9_parser"
2445 webp_decoder_select="vp8_decoder"
2446 wmalossless_decoder_select="llauddsp"
2447 wmapro_decoder_select="mdct sinewin wma_freqs"
2448 wmav1_decoder_select="mdct sinewin wma_freqs"
2449 wmav1_encoder_select="mdct sinewin wma_freqs"
2450 wmav2_decoder_select="mdct sinewin wma_freqs"
2451 wmav2_encoder_select="mdct sinewin wma_freqs"
2452 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2453 wmv1_decoder_select="h263_decoder"
2454 wmv1_encoder_select="h263_encoder"
2455 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2456 wmv2_encoder_select="h263_encoder wmv2dsp"
2457 wmv3_decoder_select="vc1_decoder"
2458 wmv3image_decoder_select="wmv3_decoder"
2459 zerocodec_decoder_select="zlib"
2460 zlib_decoder_select="zlib"
2461 zlib_encoder_select="zlib"
2462 zmbv_decoder_select="zlib"
2463 zmbv_encoder_select="zlib"
2464
2465 # hardware accelerators
2466 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2467 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2468 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2469 vaapi_deps="va_va_h"
2470 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2471 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2472 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2473 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2474 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2475 xvmc_deps="X11_extensions_XvMClib_h"
2476
2477 h263_vaapi_hwaccel_deps="vaapi"
2478 h263_vaapi_hwaccel_select="h263_decoder"
2479 h263_videotoolbox_hwaccel_deps="videotoolbox"
2480 h263_videotoolbox_hwaccel_select="h263_decoder"
2481 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2482 h264_d3d11va_hwaccel_deps="d3d11va"
2483 h264_d3d11va_hwaccel_select="h264_decoder"
2484 h264_dxva2_hwaccel_deps="dxva2"
2485 h264_dxva2_hwaccel_select="h264_decoder"
2486 h264_mmal_decoder_deps="mmal"
2487 h264_mmal_hwaccel_deps="mmal"
2488 h264_mmal_decoder_select="h264_decoder"
2489 h264_mmal_encoder_deps="mmal"
2490 h264_qsv_hwaccel_deps="libmfx"
2491 h264_vaapi_hwaccel_deps="vaapi"
2492 h264_vaapi_hwaccel_select="h264_decoder"
2493 h264_vda_decoder_deps="vda"
2494 h264_vda_decoder_select="h264_decoder"
2495 h264_vda_hwaccel_deps="vda"
2496 h264_vda_hwaccel_select="h264_decoder"
2497 h264_vda_old_hwaccel_deps="vda"
2498 h264_vda_old_hwaccel_select="h264_decoder"
2499 h264_vdpau_decoder_deps="vdpau"
2500 h264_vdpau_decoder_select="h264_decoder"
2501 h264_vdpau_hwaccel_deps="vdpau"
2502 h264_vdpau_hwaccel_select="h264_decoder"
2503 h264_videotoolbox_hwaccel_deps="videotoolbox"
2504 h264_videotoolbox_hwaccel_select="h264_decoder"
2505 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2506 hevc_d3d11va_hwaccel_select="hevc_decoder"
2507 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2508 hevc_dxva2_hwaccel_select="hevc_decoder"
2509 hevc_qsv_hwaccel_deps="libmfx"
2510 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2511 hevc_vaapi_hwaccel_select="hevc_decoder"
2512 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2513 hevc_vdpau_hwaccel_select="hevc_decoder"
2514 mpeg_vdpau_decoder_deps="vdpau"
2515 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2516 mpeg_xvmc_hwaccel_deps="xvmc"
2517 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2518 mpeg1_vdpau_decoder_deps="vdpau"
2519 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2520 mpeg1_vdpau_hwaccel_deps="vdpau"
2521 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2522 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2523 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2524 mpeg1_xvmc_hwaccel_deps="xvmc"
2525 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2526 mpeg2_crystalhd_decoder_select="crystalhd"
2527 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2528 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2529 mpeg2_dxva2_hwaccel_deps="dxva2"
2530 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2531 mpeg2_mmal_decoder_deps="mmal"
2532 mpeg2_mmal_hwaccel_deps="mmal"
2533 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2534 mpeg2_qsv_hwaccel_deps="libmfx"
2535 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2536 mpeg2_vaapi_hwaccel_deps="vaapi"
2537 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2538 mpeg2_vdpau_hwaccel_deps="vdpau"
2539 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2540 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2541 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2542 mpeg2_xvmc_hwaccel_deps="xvmc"
2543 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2544 mpeg4_crystalhd_decoder_select="crystalhd"
2545 mpeg4_vaapi_hwaccel_deps="vaapi"
2546 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2547 mpeg4_vdpau_decoder_deps="vdpau"
2548 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2549 mpeg4_vdpau_hwaccel_deps="vdpau"
2550 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2551 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2552 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2553 msmpeg4_crystalhd_decoder_select="crystalhd"
2554 vc1_crystalhd_decoder_select="crystalhd"
2555 vc1_d3d11va_hwaccel_deps="d3d11va"
2556 vc1_d3d11va_hwaccel_select="vc1_decoder"
2557 vc1_dxva2_hwaccel_deps="dxva2"
2558 vc1_dxva2_hwaccel_select="vc1_decoder"
2559 vc1_vaapi_hwaccel_deps="vaapi"
2560 vc1_vaapi_hwaccel_select="vc1_decoder"
2561 vc1_vdpau_decoder_deps="vdpau"
2562 vc1_vdpau_decoder_select="vc1_decoder"
2563 vc1_vdpau_hwaccel_deps="vdpau"
2564 vc1_vdpau_hwaccel_select="vc1_decoder"
2565 vc1_mmal_decoder_deps="mmal"
2566 vc1_mmal_hwaccel_deps="mmal"
2567 vc1_mmal_decoder_select="vc1_decoder"
2568 vc1_qsv_hwaccel_deps="libmfx"
2569 vc1_qsv_hwaccel_select="qsvdec_vc1"
2570 vp9_d3d11va_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2571 vp9_d3d11va_hwaccel_select="vp9_decoder"
2572 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2573 vp9_dxva2_hwaccel_select="vp9_decoder"
2574 wmv3_crystalhd_decoder_select="crystalhd"
2575 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2576 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2577 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2578 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2579 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2580
2581 # parsers
2582 h264_parser_select="h264_decoder"
2583 hevc_parser_select="golomb"
2584 mpegvideo_parser_select="mpegvideo"
2585 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2586 vc1_parser_select="mpegvideo startcode vc1_decoder"
2587
2588 # bitstream_filters
2589 mjpeg2jpeg_bsf_select="jpegtables"
2590
2591 # external libraries
2592 chromaprint_muxer_deps="chromaprint"
2593 libaacplus_encoder_deps="libaacplus"
2594 libcelt_decoder_deps="libcelt"
2595 libdcadec_decoder_deps="libdcadec"
2596 libfaac_encoder_deps="libfaac"
2597 libfaac_encoder_select="audio_frame_queue"
2598 libfdk_aac_decoder_deps="libfdk_aac"
2599 libfdk_aac_encoder_deps="libfdk_aac"
2600 libfdk_aac_encoder_select="audio_frame_queue"
2601 libgme_demuxer_deps="libgme"
2602 libgsm_decoder_deps="libgsm"
2603 libgsm_encoder_deps="libgsm"
2604 libgsm_ms_decoder_deps="libgsm"
2605 libgsm_ms_encoder_deps="libgsm"
2606 libilbc_decoder_deps="libilbc"
2607 libilbc_encoder_deps="libilbc"
2608 libkvazaar_encoder_deps="libkvazaar"
2609 libmodplug_demuxer_deps="libmodplug"
2610 libmp3lame_encoder_deps="libmp3lame"
2611 libmp3lame_encoder_select="audio_frame_queue"
2612 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2613 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2614 libopencore_amrnb_encoder_select="audio_frame_queue"
2615 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2616 libopenh264_encoder_deps="libopenh264"
2617 libopenjpeg_decoder_deps="libopenjpeg"
2618 libopenjpeg_encoder_deps="libopenjpeg"
2619 libopus_decoder_deps="libopus"
2620 libopus_encoder_deps="libopus"
2621 libopus_encoder_select="audio_frame_queue"
2622 libquvi_demuxer_deps="libquvi"
2623 libschroedinger_decoder_deps="libschroedinger"
2624 libschroedinger_encoder_deps="libschroedinger"
2625 libshine_encoder_deps="libshine"
2626 libshine_encoder_select="audio_frame_queue"
2627 libspeex_decoder_deps="libspeex"
2628 libspeex_encoder_deps="libspeex"
2629 libspeex_encoder_select="audio_frame_queue"
2630 libstagefright_h264_decoder_deps="libstagefright_h264"
2631 libtheora_encoder_deps="libtheora"
2632 libtwolame_encoder_deps="libtwolame"
2633 libvo_aacenc_encoder_deps="libvo_aacenc"
2634 libvo_aacenc_encoder_select="audio_frame_queue"
2635 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2636 libvorbis_decoder_deps="libvorbis"
2637 libvorbis_encoder_deps="libvorbis"
2638 libvorbis_encoder_select="audio_frame_queue"
2639 libvpx_vp8_decoder_deps="libvpx"
2640 libvpx_vp8_encoder_deps="libvpx"
2641 libvpx_vp9_decoder_deps="libvpx"
2642 libvpx_vp9_encoder_deps="libvpx"
2643 libwavpack_encoder_deps="libwavpack"
2644 libwebp_encoder_deps="libwebp"
2645 libwebp_anim_encoder_deps="libwebp"
2646 libx262_encoder_deps="libx262"
2647 libx264_encoder_deps="libx264"
2648 libx264rgb_encoder_deps="libx264"
2649 libx264rgb_encoder_select="libx264_encoder"
2650 libx265_encoder_deps="libx265"
2651 libxavs_encoder_deps="libxavs"
2652 libxvid_encoder_deps="libxvid"
2653 libutvideo_decoder_deps="libutvideo"
2654 libutvideo_encoder_deps="libutvideo"
2655 libzvbi_teletext_decoder_deps="libzvbi"
2656 nvenc_encoder_deps="nvenc"
2657 nvenc_h264_encoder_deps="nvenc"
2658 nvenc_hevc_encoder_deps="nvenc"
2659
2660 # demuxers / muxers
2661 ac3_demuxer_select="ac3_parser"
2662 asf_demuxer_select="riffdec"
2663 asf_o_demuxer_select="riffdec"
2664 asf_muxer_select="riffenc"
2665 asf_stream_muxer_select="asf_muxer"
2666 avi_demuxer_select="riffdec exif"
2667 avi_muxer_select="riffenc"
2668 avisynth_demuxer_deps="avisynth"
2669 avisynth_demuxer_select="riffdec"
2670 caf_demuxer_select="riffdec"
2671 dash_muxer_select="mp4_muxer"
2672 dirac_demuxer_select="dirac_parser"
2673 dts_demuxer_select="dca_parser"
2674 dtshd_demuxer_select="dca_parser"
2675 dv_demuxer_select="dvprofile"
2676 dv_muxer_select="dvprofile"
2677 dxa_demuxer_select="riffdec"
2678 eac3_demuxer_select="ac3_parser"
2679 f4v_muxer_select="mov_muxer"
2680 flac_demuxer_select="flac_parser"
2681 hds_muxer_select="flv_muxer"
2682 hls_muxer_select="mpegts_muxer"
2683 image2_alias_pix_demuxer_select="image2_demuxer"
2684 image2_brender_pix_demuxer_select="image2_demuxer"
2685 ipod_muxer_select="mov_muxer"
2686 ismv_muxer_select="mov_muxer"
2687 libnut_demuxer_deps="libnut"
2688 libnut_muxer_deps="libnut"
2689 matroska_audio_muxer_select="matroska_muxer"
2690 matroska_demuxer_select="riffdec"
2691 matroska_demuxer_suggest="bzlib lzo zlib"
2692 matroska_muxer_select="riffenc"
2693 mmf_muxer_select="riffenc"
2694 mov_demuxer_select="riffdec"
2695 mov_demuxer_suggest="zlib"
2696 mov_muxer_select="riffenc rtpenc_chain"
2697 mp3_demuxer_select="mpegaudio_parser"
2698 mp4_muxer_select="mov_muxer"
2699 mpegts_muxer_select="adts_muxer latm_muxer"
2700 mpegtsraw_demuxer_select="mpegts_demuxer"
2701 mxf_d10_muxer_select="mxf_muxer"
2702 mxf_opatom_muxer_select="mxf_muxer"
2703 nut_muxer_select="riffenc"
2704 nuv_demuxer_select="riffdec"
2705 oga_muxer_select="ogg_muxer"
2706 ogg_demuxer_select="golomb"
2707 opus_muxer_select="ogg_muxer"
2708 psp_muxer_select="mov_muxer"
2709 rtp_demuxer_select="sdp_demuxer"
2710 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2711 rtsp_demuxer_select="http_protocol rtpdec"
2712 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2713 sap_demuxer_select="sdp_demuxer"
2714 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2715 sdp_demuxer_select="rtpdec"
2716 smoothstreaming_muxer_select="ismv_muxer"
2717 spdif_muxer_select="aac_parser"
2718 spx_muxer_select="ogg_muxer"
2719 tak_demuxer_select="tak_parser"
2720 tg2_muxer_select="mov_muxer"
2721 tgp_muxer_select="mov_muxer"
2722 vobsub_demuxer_select="mpegps_demuxer"
2723 w64_demuxer_select="wav_demuxer"
2724 w64_muxer_select="wav_muxer"
2725 wav_demuxer_select="riffdec"
2726 wav_muxer_select="riffenc"
2727 webm_muxer_select="riffenc"
2728 wtv_demuxer_select="riffdec"
2729 wtv_muxer_select="riffenc"
2730 xmv_demuxer_select="riffdec"
2731 xwma_demuxer_select="riffdec"
2732
2733 # indevs / outdevs
2734 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2735 alsa_outdev_deps="alsa_asoundlib_h"
2736 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2737 avfoundation_indev_select="avfoundation"
2738 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2739 caca_outdev_deps="libcaca"
2740 decklink_outdev_deps="decklink pthreads"
2741 decklink_outdev_extralibs="-lstdc++"
2742 decklink_indev_deps="decklink pthreads"
2743 decklink_indev_extralibs="-lstdc++"
2744 dshow_indev_deps="IBaseFilter"
2745 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2746 dv1394_indev_deps="dv1394"
2747 dv1394_indev_select="dv_demuxer"
2748 fbdev_indev_deps="linux_fb_h"
2749 fbdev_outdev_deps="linux_fb_h"
2750 gdigrab_indev_deps="CreateDIBSection"
2751 gdigrab_indev_extralibs="-lgdi32"
2752 gdigrab_indev_select="bmp_decoder"
2753 iec61883_indev_deps="libiec61883"
2754 jack_indev_deps="jack_jack_h sem_timedwait"
2755 lavfi_indev_deps="avfilter"
2756 libcdio_indev_deps="libcdio"
2757 libdc1394_indev_deps="libdc1394"
2758 libv4l2_indev_deps="libv4l2"
2759 openal_indev_deps="openal"
2760 opengl_outdev_deps="opengl"
2761 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2762 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2763 pulse_indev_deps="libpulse"
2764 pulse_outdev_deps="libpulse"
2765 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2766 qtkit_indev_select="qtkit"
2767 sdl_outdev_deps="sdl"
2768 sndio_indev_deps="sndio_h"
2769 sndio_outdev_deps="sndio_h"
2770 v4l_indev_deps="linux_videodev_h"
2771 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2772 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2773 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2774 vfwcap_indev_extralibs="-lavicap32"
2775 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2776 xv_outdev_extralibs="-lXv -lX11 -lXext"
2777 x11grab_indev_deps="x11grab"
2778 x11grab_xcb_indev_deps="libxcb"
2779
2780 # protocols
2781 async_protocol_deps="threads"
2782 bluray_protocol_deps="libbluray"
2783 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2784 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2785 ffrtmpcrypt_protocol_select="tcp_protocol"
2786 ffrtmphttp_protocol_deps="!librtmp_protocol"
2787 ffrtmphttp_protocol_select="http_protocol"
2788 ftp_protocol_select="tcp_protocol"
2789 gopher_protocol_select="network"
2790 http_protocol_select="tcp_protocol"
2791 httpproxy_protocol_select="tcp_protocol"
2792 https_protocol_select="tls_protocol"
2793 icecast_protocol_select="http_protocol"
2794 librtmp_protocol_deps="librtmp"
2795 librtmpe_protocol_deps="librtmp"
2796 librtmps_protocol_deps="librtmp"
2797 librtmpt_protocol_deps="librtmp"
2798 librtmpte_protocol_deps="librtmp"
2799 libsmbclient_protocol_deps="libsmbclient gplv3"
2800 libssh_protocol_deps="libssh"
2801 mmsh_protocol_select="http_protocol"
2802 mmst_protocol_select="network"
2803 rtmp_protocol_deps="!librtmp_protocol"
2804 rtmp_protocol_select="tcp_protocol"
2805 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2806 rtmps_protocol_deps="!librtmp_protocol"
2807 rtmps_protocol_select="tls_protocol"
2808 rtmpt_protocol_select="ffrtmphttp_protocol"
2809 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2810 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2811 rtp_protocol_select="udp_protocol"
2812 sctp_protocol_deps="struct_sctp_event_subscribe"
2813 sctp_protocol_select="network"
2814 srtp_protocol_select="rtp_protocol"
2815 tcp_protocol_select="network"
2816 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2817 tls_gnutls_protocol_select="tcp_protocol"
2818 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2819 tls_openssl_protocol_select="tcp_protocol"
2820 tls_schannel_protocol_deps="schannel"
2821 tls_schannel_protocol_select="tcp_protocol"
2822 tls_securetransport_protocol_deps="securetransport"
2823 tls_securetransport_protocol_select="tcp_protocol"
2824 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2825 udp_protocol_select="network"
2826 udplite_protocol_select="network"
2827 unix_protocol_deps="sys_un_h"
2828 unix_protocol_select="network"
2829
2830 # filters
2831 aemphasis_filter_deps="cabs cexp"
2832 amovie_filter_deps="avcodec avformat"
2833 aresample_filter_deps="swresample"
2834 ass_filter_deps="libass"
2835 asyncts_filter_deps="avresample"
2836 atempo_filter_deps="avcodec"
2837 atempo_filter_select="rdft"
2838 azmq_filter_deps="libzmq"
2839 blackframe_filter_deps="gpl"
2840 boxblur_filter_deps="gpl"
2841 bs2b_filter_deps="libbs2b"
2842 colormatrix_filter_deps="gpl"
2843 cover_rect_filter_deps="avcodec avformat gpl"
2844 cropdetect_filter_deps="gpl"
2845 delogo_filter_deps="gpl"
2846 deshake_filter_select="pixelutils"
2847 drawtext_filter_deps="libfreetype"
2848 dynaudnorm_filter_deps="copysign erf"
2849 ebur128_filter_deps="gpl"
2850 eq_filter_deps="gpl"
2851 fftfilt_filter_deps="avcodec"
2852 fftfilt_filter_select="rdft"
2853 flite_filter_deps="libflite"
2854 find_rect_filter_deps="avcodec avformat gpl"
2855 frei0r_filter_deps="frei0r dlopen"
2856 frei0r_src_filter_deps="frei0r dlopen"
2857 fspp_filter_deps="gpl"
2858 geq_filter_deps="gpl"
2859 histeq_filter_deps="gpl"
2860 hqdn3d_filter_deps="gpl"
2861 interlace_filter_deps="gpl"
2862 kerndeint_filter_deps="gpl"
2863 ladspa_filter_deps="ladspa dlopen"
2864 mcdeint_filter_deps="avcodec gpl"
2865 movie_filter_deps="avcodec avformat"
2866 mpdecimate_filter_deps="gpl"
2867 mpdecimate_filter_select="pixelutils"
2868 mptestsrc_filter_deps="gpl"
2869 negate_filter_deps="lut_filter"
2870 perspective_filter_deps="gpl"
2871 pp7_filter_deps="gpl"
2872 ocr_filter_deps="libtesseract"
2873 ocv_filter_deps="libopencv"
2874 owdenoise_filter_deps="gpl"
2875 pan_filter_deps="swresample"
2876 phase_filter_deps="gpl"
2877 pp_filter_deps="gpl postproc"
2878 pullup_filter_deps="gpl"
2879 removelogo_filter_deps="avcodec avformat swscale"
2880 repeatfields_filter_deps="gpl"
2881 resample_filter_deps="avresample"
2882 rubberband_filter_deps="librubberband"
2883 sab_filter_deps="gpl swscale"
2884 scale_filter_deps="swscale"
2885 scale2ref_filter_deps="swscale"
2886 select_filter_select="pixelutils"
2887 smartblur_filter_deps="gpl swscale"
2888 showcqt_filter_deps="avcodec avformat swscale"
2889 showcqt_filter_select="fft"
2890 showfreqs_filter_deps="avcodec"
2891 showfreqs_filter_select="fft"
2892 showspectrum_filter_deps="avcodec"
2893 showspectrum_filter_select="rdft"
2894 spp_filter_deps="gpl avcodec"
2895 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2896 stereo3d_filter_deps="gpl"
2897 subtitles_filter_deps="avformat avcodec libass"
2898 super2xsai_filter_deps="gpl"
2899 tinterlace_filter_deps="gpl"
2900 vidstabdetect_filter_deps="libvidstab"
2901 vidstabtransform_filter_deps="libvidstab"
2902 pixfmts_super2xsai_test_deps="super2xsai_filter"
2903 tinterlace_merge_test_deps="tinterlace_filter"
2904 tinterlace_pad_test_deps="tinterlace_filter"
2905 uspp_filter_deps="gpl avcodec"
2906 zmq_filter_deps="libzmq"
2907 zoompan_filter_deps="swscale"
2908 zscale_filter_deps="libzimg"
2909
2910 # examples
2911 avio_reading="avformat avcodec avutil"
2912 avio_dir_cmd="avformat avutil"
2913 avcodec_example_deps="avcodec avutil"
2914 decoding_encoding_example_deps="avcodec avformat avutil"
2915 demuxing_decoding_example_deps="avcodec avformat avutil"
2916 extract_mvs_example_deps="avcodec avformat avutil"
2917 filter_audio_example_deps="avfilter avutil"
2918 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2919 filtering_video_example_deps="avfilter avcodec avformat avutil"
2920 metadata_example_deps="avformat avutil"
2921 muxing_example_deps="avcodec avformat avutil swscale"
2922 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2923 remuxing_example_deps="avcodec avformat avutil"
2924 resampling_audio_example_deps="avutil swresample"
2925 scaling_video_example_deps="avutil swscale"
2926 transcode_aac_example_deps="avcodec avformat swresample"
2927 transcoding_example_deps="avfilter avcodec avformat avutil"
2928
2929 # libraries, in linking order
2930 avcodec_deps="avutil"
2931 avdevice_deps="avformat avcodec avutil"
2932 avfilter_deps="avutil"
2933 avformat_deps="avcodec avutil"
2934 avresample_deps="avutil"
2935 postproc_deps="avutil gpl"
2936 swresample_deps="avutil"
2937 swscale_deps="avutil"
2938
2939 # programs
2940 ffmpeg_deps="avcodec avfilter avformat swresample"
2941 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2942                null_filter
2943                setpts_filter trim_filter"
2944 ffplay_deps="avcodec avformat swscale swresample sdl"
2945 ffplay_libs='$sdl_libs'
2946 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2947 ffprobe_deps="avcodec avformat"
2948 ffserver_deps="avformat fork sarestart"
2949 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2950
2951 # documentation
2952 podpages_deps="perl"
2953 manpages_deps="perl pod2man"
2954 htmlpages_deps="perl"
2955 htmlpages_deps_any="makeinfo_html texi2html"
2956 txtpages_deps="perl makeinfo"
2957 doc_deps_any="manpages htmlpages podpages txtpages"
2958
2959 # default parameters
2960
2961 logfile="config.log"
2962
2963 # installation paths
2964 prefix_default="/usr/local"
2965 bindir_default='${prefix}/bin'
2966 datadir_default='${prefix}/share/ffmpeg'
2967 docdir_default='${prefix}/share/doc/ffmpeg'
2968 incdir_default='${prefix}/include'
2969 libdir_default='${prefix}/lib'
2970 mandir_default='${prefix}/share/man'
2971
2972 # toolchain
2973 ar_default="ar"
2974 cc_default="gcc"
2975 cxx_default="g++"
2976 host_cc_default="gcc"
2977 cp_f="cp -f"
2978 doxygen_default="doxygen"
2979 install="install"
2980 ln_s="ln -s -f"
2981 nm_default="nm -g"
2982 objformat="elf"
2983 pkg_config_default=pkg-config
2984 ranlib_default="ranlib"
2985 strip_default="strip"
2986 yasmexe_default="yasm"
2987 windres_default="windres"
2988
2989 # OS
2990 target_os_default=$(tolower $(uname -s))
2991 host_os=$target_os_default
2992
2993 # machine
2994 if test "$target_os_default" = aix; then
2995     arch_default=$(uname -p)
2996     strip_default="strip -X32_64"
2997 else
2998     arch_default=$(uname -m)
2999 fi
3000 cpu="generic"
3001 intrinsics="none"
3002
3003 # configurable options
3004 enable $PROGRAM_LIST
3005 enable $DOCUMENT_LIST
3006 enable $EXAMPLE_LIST
3007 enable $(filter_out avresample $LIBRARY_LIST)
3008 enable stripping
3009
3010 enable asm
3011 enable debug
3012 enable doc
3013 enable faan faandct faanidct
3014 enable optimizations
3015 enable runtime_cpudetect
3016 enable safe_bitstream_reader
3017 enable static
3018 enable swscale_alpha
3019 enable valgrind_backtrace
3020
3021 sws_max_filter_size_default=256
3022 set_default sws_max_filter_size
3023
3024 # Enable hwaccels by default.
3025 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3026 enable xlib
3027
3028 # build settings
3029 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3030 LIBPREF="lib"
3031 LIBSUF=".a"
3032 FULLNAME='$(NAME)$(BUILDSUF)'
3033 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3034 SLIBPREF="lib"
3035 SLIBSUF=".so"
3036 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3037 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3038 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3039 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3040 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3041 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3042
3043 asflags_filter=echo
3044 cflags_filter=echo
3045 ldflags_filter=echo
3046
3047 AS_C='-c'
3048 AS_O='-o $@'
3049 CC_C='-c'
3050 CC_E='-E -o $@'
3051 CC_O='-o $@'
3052 CXX_C='-c'
3053 CXX_O='-o $@'
3054 OBJCC_C='-c'
3055 OBJCC_E='-E -o $@'
3056 OBJCC_O='-o $@'
3057 LD_O='-o $@'
3058 LD_LIB='-l%'
3059 LD_PATH='-L'
3060 HOSTCC_C='-c'
3061 HOSTCC_E='-E -o $@'
3062 HOSTCC_O='-o $@'
3063 HOSTLD_O='-o $@'
3064
3065 host_libs='-lm'
3066 host_cflags_filter=echo
3067 host_ldflags_filter=echo
3068
3069 target_path='$(CURDIR)'
3070
3071 # since the object filename is not given with the -MM flag, the compiler
3072 # is only able to print the basename, and we must add the path ourselves
3073 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3074 DEPFLAGS='-MM'
3075
3076 # find source path
3077 if test -f configure; then
3078     source_path=.
3079 else
3080     source_path=$(cd $(dirname "$0"); pwd)
3081     case "$source_path" in
3082         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3083     esac
3084     test -e "$source_path/config.h" &&
3085         die "Out of tree builds are impossible with config.h in source dir."
3086 fi
3087
3088 for v in "$@"; do
3089     r=${v#*=}
3090     l=${v%"$r"}
3091     r=$(sh_quote "$r")
3092     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3093 done
3094
3095 find_things(){
3096     thing=$1
3097     pattern=$2
3098     file=$source_path/$3
3099     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3100 }
3101
3102 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3103 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3104 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3105 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3106 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3107 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3108 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3109 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3110 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3111 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3112 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3113
3114 ALL_COMPONENTS="
3115     $BSF_LIST
3116     $DECODER_LIST
3117     $DEMUXER_LIST
3118     $ENCODER_LIST
3119     $FILTER_LIST
3120     $HWACCEL_LIST
3121     $INDEV_LIST
3122     $MUXER_LIST
3123     $OUTDEV_LIST
3124     $PARSER_LIST
3125     $PROTOCOL_LIST
3126 "
3127
3128 for n in $COMPONENT_LIST; do
3129     v=$(toupper ${n%s})_LIST
3130     eval enable \$$v
3131     eval ${n}_if_any="\$$v"
3132 done
3133
3134 enable $ARCH_EXT_LIST
3135
3136 die_unknown(){
3137     echo "Unknown option \"$1\"."
3138     echo "See $0 --help for available options."
3139     exit 1
3140 }
3141
3142 print_in_columns() {
3143     cols=$(expr $ncols / 24)
3144     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3145 }
3146
3147 show_list() {
3148     suffix=_$1
3149     shift
3150     echo $* | sed s/$suffix//g | print_in_columns
3151     exit 0
3152 }
3153
3154 rand_list(){
3155     IFS=', '
3156     set -- $*
3157     unset IFS
3158     for thing; do
3159         comp=${thing%:*}
3160         prob=${thing#$comp}
3161         prob=${prob#:}
3162         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3163         echo "prob ${prob:-0.5}"
3164         printf '%s\n' $comp
3165     done
3166 }
3167
3168 do_random(){
3169     action=$1
3170     shift
3171     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3172     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3173 }
3174
3175 for opt do
3176     optval="${opt#*=}"
3177     case "$opt" in
3178         --extra-ldflags=*)
3179             add_ldflags $optval
3180         ;;
3181         --extra-ldexeflags=*)
3182             add_ldexeflags $optval
3183         ;;
3184         --extra-ldlibflags=*)
3185             add_ldlibflags $optval
3186         ;;
3187         --extra-libs=*)
3188             add_extralibs $optval
3189         ;;
3190         --disable-devices)
3191             disable $INDEV_LIST $OUTDEV_LIST
3192         ;;
3193         --enable-debug=*)
3194             debuglevel="$optval"
3195         ;;
3196         --disable-programs)
3197             disable $PROGRAM_LIST
3198         ;;
3199         --disable-everything)
3200             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3201         ;;
3202         --disable-all)
3203             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3204             disable $LIBRARY_LIST $PROGRAM_LIST doc
3205             enable avutil
3206         ;;
3207         --enable-random|--disable-random)
3208             action=${opt%%-random}
3209             do_random ${action#--} $COMPONENT_LIST
3210         ;;
3211         --enable-random=*|--disable-random=*)
3212             action=${opt%%-random=*}
3213             do_random ${action#--} $optval
3214         ;;
3215         --enable-*=*|--disable-*=*)
3216             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3217             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3218             eval list=\$$(toupper $thing)_LIST
3219             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3220             list=$(filter "$name" $list)
3221             [ "$list" = "" ] && warn "Option $opt did not match anything"
3222             $action $list
3223         ;;
3224         --enable-?*|--disable-?*)
3225             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3226             if is_in $option $COMPONENT_LIST; then
3227                 test $action = disable && action=unset
3228                 eval $action \$$(toupper ${option%s})_LIST
3229             elif is_in $option $CMDLINE_SELECT; then
3230                 $action $option
3231             else
3232                 die_unknown $opt
3233             fi
3234         ;;
3235         --list-*)
3236             NAME="${opt#--list-}"
3237             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3238             NAME=${NAME%s}
3239             eval show_list $NAME \$$(toupper $NAME)_LIST
3240         ;;
3241         --help|-h) show_help
3242         ;;
3243         --fatal-warnings) enable fatal_warnings
3244         ;;
3245         *)
3246             optname="${opt%%=*}"
3247             optname="${optname#--}"
3248             optname=$(echo "$optname" | sed 's/-/_/g')
3249             if is_in $optname $CMDLINE_SET; then
3250                 eval $optname='$optval'
3251             elif is_in $optname $CMDLINE_APPEND; then
3252                 append $optname "$optval"
3253             else
3254                 die_unknown $opt
3255             fi
3256         ;;
3257     esac
3258 done
3259
3260 for e in $env; do
3261     eval "export $e"
3262 done
3263
3264 disabled logging && logfile=/dev/null
3265
3266 # Disable all the library-specific components if the library itself
3267 # is disabled, see AVCODEC_LIST and following _LIST variables.
3268
3269 disable_components(){
3270     disabled ${1} && disable $(
3271         eval components="\$$(toupper ${1})_COMPONENTS"
3272         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3273     )
3274 }
3275
3276 map 'disable_components $v' $LIBRARY_LIST
3277
3278 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3279 set >> $logfile
3280
3281 test -n "$valgrind" && toolchain="valgrind-memcheck"
3282
3283 case "$toolchain" in
3284     clang-asan)
3285         cc_default="clang"
3286         add_cflags  -fsanitize=address
3287         add_ldflags -fsanitize=address
3288     ;;
3289     clang-tsan)
3290         cc_default="clang"
3291         add_cflags  -fsanitize=thread -pie
3292         add_ldflags -fsanitize=thread -pie
3293     ;;
3294     clang-usan)
3295         cc_default="clang"
3296         add_cflags  -fsanitize=undefined
3297         add_ldflags -fsanitize=undefined
3298     ;;
3299     gcc-asan)
3300         cc_default="gcc"
3301         add_cflags  -fsanitize=address
3302         add_ldflags -fsanitize=address
3303     ;;
3304     gcc-tsan)
3305         cc_default="gcc"
3306         add_cflags  -fsanitize=thread -pie -fPIC
3307         add_ldflags -fsanitize=thread -pie -fPIC
3308     ;;
3309     gcc-usan)
3310         cc_default="gcc"
3311         add_cflags  -fsanitize=undefined
3312         add_ldflags -fsanitize=undefined
3313     ;;
3314     valgrind-massif)
3315         target_exec_default=${valgrind:-"valgrind"}
3316         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"
3317     ;;
3318     valgrind-memcheck)
3319         target_exec_default=${valgrind:-"valgrind"}
3320         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3321     ;;
3322     msvc)
3323         # Check whether the current MSVC version needs the C99 converter.
3324         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3325         # support enough of C99 to build ffmpeg. Default to the new
3326         # behaviour if the regexp was unable to match anything, since this
3327         # successfully parses the version number of existing supported
3328         # versions that require the converter (MSVC 2010 and 2012).
3329         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3330         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3331             cc_default="cl"
3332         else
3333             cc_default="c99wrap cl"
3334         fi
3335         ld_default="$source_path/compat/windows/mslink"
3336         nm_default="dumpbin -symbols"
3337         ar_default="lib"
3338         case "$arch" in
3339         arm*)
3340             as_default="armasm"
3341             ;;
3342         esac
3343         target_os_default="win32"
3344         # Use a relative path for TMPDIR. This makes sure all the
3345         # ffconf temp files are written with a relative path, avoiding
3346         # issues with msys/win32 path conversion for MSVC parameters
3347         # such as -Fo<file> or -out:<file>.
3348         TMPDIR=.
3349     ;;
3350     icl)
3351         cc_default="icl"
3352         ld_default="xilink"
3353         nm_default="dumpbin -symbols"
3354         ar_default="xilib"
3355         target_os_default="win32"
3356         TMPDIR=.
3357     ;;
3358     gcov)
3359         add_cflags  -fprofile-arcs -ftest-coverage
3360         add_ldflags -fprofile-arcs -ftest-coverage
3361     ;;
3362     hardened)
3363         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3364         add_cflags   -fno-strict-overflow -fstack-protector-all
3365         add_ldflags  -Wl,-z,relro -Wl,-z,now
3366     ;;
3367     ?*)
3368         die "Unknown toolchain $toolchain"
3369     ;;
3370 esac
3371
3372 test -n "$cross_prefix" && enable cross_compile
3373
3374 if enabled cross_compile; then
3375     test -n "$arch" && test -n "$target_os" ||
3376         die "Must specify target arch and OS when cross-compiling"
3377 fi
3378
3379 ar_default="${cross_prefix}${ar_default}"
3380 cc_default="${cross_prefix}${cc_default}"
3381 cxx_default="${cross_prefix}${cxx_default}"
3382 nm_default="${cross_prefix}${nm_default}"
3383 pkg_config_default="${cross_prefix}${pkg_config_default}"
3384 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3385     ranlib_default="${cross_prefix}${ranlib_default} -D"
3386 else
3387     ranlib_default="${cross_prefix}${ranlib_default}"
3388 fi
3389 strip_default="${cross_prefix}${strip_default}"
3390 windres_default="${cross_prefix}${windres_default}"
3391
3392 sysinclude_default="${sysroot}/usr/include"
3393
3394 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3395     target_exec target_os yasmexe
3396 enabled cross_compile || host_cc_default=$cc
3397 set_default host_cc
3398
3399 pkg_config_fail_message=""
3400 if ! $pkg_config --version >/dev/null 2>&1; then
3401     warn "$pkg_config not found, library detection may fail."
3402     pkg_config=false
3403 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3404     pkg_config_fail_message="
3405 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3406 fi
3407
3408 if test $doxygen != $doxygen_default && \
3409   ! $doxygen --version >/dev/null 2>&1; then
3410     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3411 fi
3412
3413 exesuf() {
3414     case $1 in
3415         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3416     esac
3417 }
3418
3419 EXESUF=$(exesuf $target_os)
3420 HOSTEXESUF=$(exesuf $host_os)
3421
3422 # set temporary file name
3423 : ${TMPDIR:=$TEMPDIR}
3424 : ${TMPDIR:=$TMP}
3425 : ${TMPDIR:=/tmp}
3426
3427 if [ -n "$tempprefix" ] ; then
3428     mktemp(){
3429         echo $tempprefix.${HOSTNAME}.${UID}
3430     }
3431 elif ! check_cmd mktemp -u XXXXXX; then
3432     # simple replacement for missing mktemp
3433     # NOT SAFE FOR GENERAL USE
3434     mktemp(){
3435         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3436     }
3437 fi
3438
3439 tmpfile(){
3440     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3441         (set -C; exec > $tmp) 2>/dev/null ||
3442         die "Unable to create temporary file in $TMPDIR."
3443     append TMPFILES $tmp
3444     eval $1=$tmp
3445 }
3446
3447 trap 'rm -f -- $TMPFILES' EXIT
3448
3449 tmpfile TMPASM .asm
3450 tmpfile TMPC   .c
3451 tmpfile TMPCPP .cpp
3452 tmpfile TMPE   $EXESUF
3453 tmpfile TMPH   .h
3454 tmpfile TMPM   .m
3455 tmpfile TMPO   .o
3456 tmpfile TMPS   .S
3457 tmpfile TMPSH  .sh
3458 tmpfile TMPV   .ver
3459
3460 unset -f mktemp
3461
3462 chmod +x $TMPE
3463
3464 # make sure we can execute files in $TMPDIR
3465 cat > $TMPSH 2>> $logfile <<EOF
3466 #! /bin/sh
3467 EOF
3468 chmod +x $TMPSH >> $logfile 2>&1
3469 if ! $TMPSH >> $logfile 2>&1; then
3470     cat <<EOF
3471 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3472 variable to another directory and make sure that it is not mounted noexec.
3473 EOF
3474     die "Sanity test failed."
3475 fi
3476
3477 armasm_flags(){
3478     for flag; do
3479         case $flag in
3480             # Filter out MSVC cl.exe options from cflags that shouldn't
3481             # be passed to gas-preprocessor
3482             -M[TD]*)                                            ;;
3483             *)                  echo $flag                      ;;
3484         esac
3485    done
3486 }
3487
3488 ccc_flags(){
3489     for flag; do
3490         case $flag in
3491             -std=c99)           echo -c99                       ;;
3492             -mcpu=*)            echo -arch ${flag#*=}           ;;
3493             -mieee)             echo -ieee                      ;;
3494             -O*|-fast)          echo $flag                      ;;
3495             -fno-math-errno)    echo -assume nomath_errno       ;;
3496             -g)                 echo -g3                        ;;
3497             -Wall)              echo -msg_enable level2         ;;
3498             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3499             -Wl,*)              echo $flag                      ;;
3500             -f*|-W*)                                            ;;
3501             *)                  echo $flag                      ;;
3502         esac
3503    done
3504 }
3505
3506 cparser_flags(){
3507     for flag; do
3508         case $flag in
3509             -Wno-switch)             echo -Wno-switch-enum ;;
3510             -Wno-format-zero-length) ;;
3511             -Wdisabled-optimization) ;;
3512             -Wno-pointer-sign)       echo -Wno-other ;;
3513             *)                       echo $flag ;;
3514         esac
3515     done
3516 }
3517
3518 msvc_common_flags(){
3519     for flag; do
3520         case $flag in
3521             # In addition to specifying certain flags under the compiler
3522             # specific filters, they must be specified here as well or else the
3523             # generic catch all at the bottom will print the original flag.
3524             -Wall)                ;;
3525             -std=c99)             ;;
3526             # Common flags
3527             -fomit-frame-pointer) ;;
3528             -g)                   echo -Z7 ;;
3529             -fno-math-errno)      ;;
3530             -fno-common)          ;;
3531             -fno-signed-zeros)    ;;
3532             -fPIC)                ;;
3533             -mthumb)              ;;
3534             -march=*)             ;;
3535             -lz)                  echo zlib.lib ;;
3536             -lavifil32)           echo vfw32.lib ;;
3537             -lavicap32)           echo vfw32.lib user32.lib ;;
3538             -l*)                  echo ${flag#-l}.lib ;;
3539             -LARGEADDRESSAWARE)   echo $flag ;;
3540             -L*)                  echo -libpath:${flag#-L} ;;
3541             *)                    echo $flag ;;
3542         esac
3543     done
3544 }
3545
3546 msvc_flags(){
3547     msvc_common_flags "$@"
3548     for flag; do
3549         case $flag in
3550             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3551                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3552                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3553                                        -wd4307 \
3554                                        -wd4273 -wd4554 -wd4701 ;;
3555         esac
3556     done
3557 }
3558
3559 icl_flags(){
3560     msvc_common_flags "$@"
3561     for flag; do
3562         case $flag in
3563             # Despite what Intel's documentation says -Wall, which is supported
3564             # on Windows, does enable remarks so disable them here.
3565             -Wall)                echo $flag -Qdiag-disable:remark ;;
3566             -std=c99)             echo -Qstd=c99 ;;
3567             -flto)                echo -ipo ;;
3568         esac
3569     done
3570 }
3571
3572 icc_flags(){
3573     for flag; do
3574         case $flag in
3575             -flto)                echo -ipo ;;
3576             *)                    echo $flag ;;
3577         esac
3578     done
3579 }
3580
3581 pgi_flags(){
3582     for flag; do
3583         case $flag in
3584             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3585             -fomit-frame-pointer) echo -Mnoframe ;;
3586             -g)                   echo -gopt ;;
3587             *)                    echo $flag ;;
3588         esac
3589     done
3590 }
3591
3592 suncc_flags(){
3593     for flag; do
3594         case $flag in
3595             -march=*|-mcpu=*)
3596                 case "${flag#*=}" in
3597                     native)                   echo -xtarget=native       ;;
3598                     v9|niagara)               echo -xarch=sparc          ;;
3599                     ultrasparc)               echo -xarch=sparcvis       ;;
3600                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3601                     i586|pentium)             echo -xchip=pentium        ;;
3602                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3603                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3604                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3605                     pentium4*)          echo -xtarget=pentium4           ;;
3606                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3607                     *-sse3)             echo -xarch=sse3                 ;;
3608                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3609                     bonnell)                   echo -xarch=ssse3         ;;
3610                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3611                     westmere)                  echo -xtarget=westmere    ;;
3612                     silvermont)                echo -xarch=sse4_2        ;;
3613                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3614                     core-avx*|ivybridge|haswell|broadwell)
3615                                                echo -xarch=avx           ;;
3616                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3617                     btver1)                    echo -xarch=amdsse4a      ;;
3618                     btver2|bdver*)             echo -xarch=avx           ;;
3619                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3620                     k8|opteron|athlon64|athlon-fx)
3621                                                echo -xarch=sse2a         ;;
3622                     athlon*)                   echo -xarch=pentium_proa  ;;
3623                 esac
3624                 ;;
3625             -std=c99)             echo -xc99              ;;
3626             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3627             -fPIC)                echo -KPIC -xcode=pic32 ;;
3628             -W*,*)                echo $flag              ;;
3629             -f*-*|-W*|-mimpure-text)                      ;;
3630             -shared)              echo -G                 ;;
3631             *)                    echo $flag              ;;
3632         esac
3633     done
3634 }
3635
3636 tms470_flags(){
3637     for flag; do
3638         case $flag in
3639             -march=*|-mcpu=*)
3640                 case "${flag#*=}" in
3641                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3642                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3643                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3644                     armv6*|arm11*)          echo -mv=6   ;;
3645                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3646                                             echo -mv=5e  ;;
3647                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3648                 esac
3649                 ;;
3650             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3651             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3652             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3653             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3654             -msoft-float)   echo --float_support=vfplib       ;;
3655             -O[0-3]|-mf=*)  echo $flag                        ;;
3656             -g)             echo -g -mn                       ;;
3657             -pds=*)         echo $flag                        ;;
3658             -D*|-I*)        echo $flag                        ;;
3659             --gcc|--abi=*)  echo $flag                        ;;
3660             -me)            echo $flag                        ;;
3661         esac
3662     done
3663 }
3664
3665 probe_cc(){
3666     pfx=$1
3667     _cc=$2
3668     first=$3
3669
3670     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3671     unset _ld_o _ldflags _ld_lib _ld_path
3672     unset _depflags _DEPCMD _DEPFLAGS
3673     _flags_filter=echo
3674
3675     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3676         true # no-op to avoid reading stdin in following checks
3677     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3678         _type=llvm_gcc
3679         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3680         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3681         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3682         _cflags_speed='-O3'
3683         _cflags_size='-Os'
3684     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3685         _type=gcc
3686         gcc_version=$($_cc --version | head -n1)
3687         gcc_basever=$($_cc -dumpversion)
3688         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3689         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3690         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3691         case $gcc_basever in
3692             2*) ;;
3693             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3694         esac
3695         if [ "$first" = true ]; then
3696             case $gcc_basever in
3697                 4.2*)
3698                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3699             esac
3700         fi
3701         _cflags_speed='-O3'
3702         _cflags_size='-Os'
3703     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3704         _type=icc
3705         _ident=$($_cc --version | head -n1)
3706         _depflags='-MMD'
3707         _cflags_speed='-O3'
3708         _cflags_size='-Os'
3709         _cflags_noopt='-O1'
3710         _flags_filter=icc_flags
3711     elif $_cc -v 2>&1 | grep -q xlc; then
3712         _type=xlc
3713         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3714         _cflags_speed='-O5'
3715         _cflags_size='-O5 -qcompact'
3716     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3717         _type=ccc
3718         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3719         _DEPFLAGS='-M'
3720         _cflags_speed='-fast'
3721         _cflags_size='-O1'
3722         _flags_filter=ccc_flags
3723     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3724         test -d "$sysroot" || die "No valid sysroot specified."
3725         _type=armcc
3726         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3727         armcc_conf="$PWD/armcc.conf"
3728         $_cc --arm_linux_configure                 \
3729              --arm_linux_config_file="$armcc_conf" \
3730              --configure_sysroot="$sysroot"        \
3731              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3732              die "Error creating armcc configuration file."
3733         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3734         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3735         as_default="${cross_prefix}gcc"
3736         _depflags='-MMD'
3737         _cflags_speed='-O3'
3738         _cflags_size='-Os'
3739     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3740         _type=tms470
3741         _ident=$($_cc -version | head -n1 | tr -s ' ')
3742         _flags='--gcc --abi=eabi -me'
3743         _cc_e='-ppl -fe=$@'
3744         _cc_o='-fe=$@'
3745         _depflags='-ppa -ppd=$(@:.o=.d)'
3746         _cflags_speed='-O3 -mf=5'
3747         _cflags_size='-O3 -mf=2'
3748         _flags_filter=tms470_flags
3749     elif $_cc -v 2>&1 | grep -q clang; then
3750         _type=clang
3751         _ident=$($_cc --version 2>/dev/null | head -n1)
3752         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3753         _cflags_speed='-O3'
3754         _cflags_size='-Os'
3755     elif $_cc -V 2>&1 | grep -q Sun; then
3756         _type=suncc
3757         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3758         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3759         _DEPFLAGS='-xM1 -xc99'
3760         _ldflags='-std=c99'
3761         _cflags_speed='-O5'
3762         _cflags_size='-O5 -xspace'
3763         _flags_filter=suncc_flags
3764     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3765         _type=pathscale
3766         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3767         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3768         _cflags_speed='-O2'
3769         _cflags_size='-Os'
3770         _flags_filter='filter_out -Wdisabled-optimization'
3771     elif $_cc -v 2>&1 | grep -q Open64; then
3772         _type=open64
3773         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3774         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3775         _cflags_speed='-O2'
3776         _cflags_size='-Os'
3777         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3778     elif $_cc -V 2>&1 | grep -q Portland; then
3779         _type=pgi
3780         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3781         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3782         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3783         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3784         _cflags_noopt="-O"
3785         _flags_filter=pgi_flags
3786     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3787         _type=armasm
3788         _ident=$($_cc | head -n1)
3789         # 4509: "This form of conditional instruction is deprecated"
3790         _flags="-nologo -ignore 4509"
3791         _flags_filter=armasm_flags
3792     elif $_cc 2>&1 | grep -q Intel; then
3793         _type=icl
3794         _ident=$($_cc 2>&1 | head -n1)
3795         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3796         # Not only is O3 broken on 13.x+ but it is slower on all previous
3797         # versions (tested) as well.
3798         _cflags_speed="-O2"
3799         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3800         if $_cc 2>&1 | grep -q Linker; then
3801             _ld_o='-out:$@'
3802         else
3803             _ld_o='-Fe$@'
3804         fi
3805         _cc_o='-Fo$@'
3806         _cc_e='-P'
3807         _flags_filter=icl_flags
3808         _ld_lib='lib%.a'
3809         _ld_path='-libpath:'
3810         # -Qdiag-error to make icl error when seeing certain unknown arguments
3811         _flags='-nologo -Qdiag-error:4044,10157'
3812         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3813         # with MSVC which enables it by default.
3814         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3815         disable stripping
3816     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3817         _type=msvc
3818         _ident=$($_cc 2>&1 | head -n1)
3819         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3820         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3821         _cflags_speed="-O2"
3822         _cflags_size="-O1"
3823         if $_cc -nologo- 2>&1 | grep -q Linker; then
3824             _ld_o='-out:$@'
3825         else
3826             _ld_o='-Fe$@'
3827         fi
3828         _cc_o='-Fo$@'
3829         _cc_e='-P -Fi$@'
3830         _flags_filter=msvc_flags
3831         _ld_lib='lib%.a'
3832         _ld_path='-libpath:'
3833         _flags='-nologo'
3834         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3835         disable stripping
3836     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3837         _type=cparser
3838         _ident=$($_cc --version | head -n1)
3839         _depflags='-MMD'
3840         _cflags_speed='-O4'
3841         _cflags_size='-O2'
3842         _flags_filter=cparser_flags
3843     fi
3844
3845     eval ${pfx}_type=\$_type
3846     eval ${pfx}_ident=\$_ident
3847 }
3848
3849 set_ccvars(){
3850     eval ${1}_C=\${_cc_c-\${${1}_C}}
3851     eval ${1}_E=\${_cc_e-\${${1}_E}}
3852     eval ${1}_O=\${_cc_o-\${${1}_O}}
3853
3854     if [ -n "$_depflags" ]; then
3855         eval ${1}_DEPFLAGS=\$_depflags
3856     else
3857         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3858         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3859         eval DEP${1}FLAGS=\$_flags
3860     fi
3861 }
3862
3863 probe_cc cc "$cc" "true"
3864 cflags_filter=$_flags_filter
3865 cflags_speed=$_cflags_speed
3866 cflags_size=$_cflags_size
3867 cflags_noopt=$_cflags_noopt
3868 add_cflags $_flags $_cflags
3869 cc_ldflags=$_ldflags
3870 set_ccvars CC
3871
3872 probe_cc hostcc "$host_cc"
3873 host_cflags_filter=$_flags_filter
3874 add_host_cflags  $_flags $_cflags
3875 set_ccvars HOSTCC
3876
3877 test -n "$cc_type" && enable $cc_type ||
3878     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3879
3880 : ${as_default:=$cc}
3881 : ${objcc_default:=$cc}
3882 : ${dep_cc_default:=$cc}
3883 : ${ld_default:=$cc}
3884 : ${host_ld_default:=$host_cc}
3885 set_default ar as objcc dep_cc ld host_ld windres
3886
3887 probe_cc as "$as"
3888 asflags_filter=$_flags_filter
3889 add_asflags $_flags $_cflags
3890 set_ccvars AS
3891
3892 probe_cc objcc "$objcc"
3893 objcflags_filter=$_flags_filter
3894 add_objcflags $_flags $_cflags
3895 set_ccvars OBJC
3896
3897 probe_cc ld "$ld"
3898 ldflags_filter=$_flags_filter
3899 add_ldflags $_flags $_ldflags
3900 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3901 LD_O=${_ld_o-$LD_O}
3902 LD_LIB=${_ld_lib-$LD_LIB}
3903 LD_PATH=${_ld_path-$LD_PATH}
3904
3905 probe_cc hostld "$host_ld"
3906 host_ldflags_filter=$_flags_filter
3907 add_host_ldflags $_flags $_ldflags
3908 HOSTLD_O=${_ld_o-$HOSTLD_O}
3909
3910 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3911     probe_cc depcc "$dep_cc"
3912     CCDEP=${_DEPCMD:-$DEPCMD}
3913     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3914     DEPCCFLAGS=$_flags
3915 fi
3916
3917 if $ar 2>&1 | grep -q Microsoft; then
3918     arflags="-nologo"
3919     ar_o='-out:$@'
3920 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3921     arflags="rq"
3922     ar_o='$@'
3923 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3924     arflags='-Xany -r -c'
3925     ar_o='$@'
3926 elif $ar 2>&1 | grep -q "\[D\] "; then
3927     arflags="rcD"
3928     ar_o='$@'
3929 else
3930     arflags="rc"
3931     ar_o='$@'
3932 fi
3933
3934 add_cflags $extra_cflags
3935 add_cxxflags $extra_cxxflags
3936 add_objcflags $extra_objcflags
3937 add_asflags $extra_cflags
3938
3939 if test -n "$sysroot"; then
3940     case "$cc_type" in
3941         gcc|llvm_gcc|clang)
3942             add_cppflags --sysroot="$sysroot"
3943             add_ldflags --sysroot="$sysroot"
3944 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3945             add_cppflags -isysroot "$sysroot"
3946             add_ldflags -isysroot "$sysroot"
3947         ;;
3948         tms470)
3949             add_cppflags -I"$sysinclude"
3950             add_ldflags  --sysroot="$sysroot"
3951         ;;
3952     esac
3953 fi
3954
3955 if test "$cpu" = host; then
3956     enabled cross_compile &&
3957         die "--cpu=host makes no sense when cross-compiling."
3958
3959     case "$cc_type" in
3960         gcc|llvm_gcc)
3961             check_native(){
3962                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3963                 sed -n "/cc1.*$1=/{
3964                             s/.*$1=\\([^ ]*\\).*/\\1/
3965                             p
3966                             q
3967                         }" $TMPE
3968             }
3969             cpu=$(check_native -march || check_native -mcpu)
3970         ;;
3971     esac
3972
3973     test "${cpu:-host}" = host &&
3974         die "--cpu=host not supported with compiler $cc"
3975 fi
3976
3977 # Deal with common $arch aliases
3978 case "$arch" in
3979     aarch64|arm64)
3980         arch="aarch64"
3981     ;;
3982     arm*|iPad*|iPhone*)
3983         arch="arm"
3984     ;;
3985     mips*|IP*)
3986         arch="mips"
3987     ;;
3988     parisc*|hppa*)
3989         arch="parisc"
3990     ;;
3991     "Power Macintosh"|ppc*|powerpc*)
3992         arch="ppc"
3993     ;;
3994     s390|s390x)
3995         arch="s390"
3996     ;;
3997     sh4|sh)
3998         arch="sh4"
3999     ;;
4000     sun4u|sparc*)
4001         arch="sparc"
4002     ;;
4003     tilegx|tile-gx)
4004         arch="tilegx"
4005     ;;
4006     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4007         arch="x86"
4008     ;;
4009 esac
4010
4011 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4012 enable $arch
4013
4014 # Add processor-specific flags
4015 if enabled aarch64; then
4016
4017     case $cpu in
4018         armv*)
4019             cpuflags="-march=$cpu"
4020         ;;
4021         *)
4022             cpuflags="-mcpu=$cpu"
4023         ;;
4024     esac
4025
4026 elif enabled alpha; then
4027
4028     cpuflags="-mcpu=$cpu"
4029
4030 elif enabled arm; then
4031
4032     check_arm_arch() {
4033         check_cpp_condition stddef.h \
4034             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4035             $cpuflags
4036     }
4037
4038     probe_arm_arch() {
4039         if   check_arm_arch 4;        then echo armv4;
4040         elif check_arm_arch 4T;       then echo armv4t;
4041         elif check_arm_arch 5;        then echo armv5;
4042         elif check_arm_arch 5E;       then echo armv5e;
4043         elif check_arm_arch 5T;       then echo armv5t;
4044         elif check_arm_arch 5TE;      then echo armv5te;
4045         elif check_arm_arch 5TEJ;     then echo armv5te;
4046         elif check_arm_arch 6;        then echo armv6;
4047         elif check_arm_arch 6J;       then echo armv6j;
4048         elif check_arm_arch 6K;       then echo armv6k;
4049         elif check_arm_arch 6Z;       then echo armv6z;
4050         elif check_arm_arch 6ZK;      then echo armv6zk;
4051         elif check_arm_arch 6T2;      then echo armv6t2;
4052         elif check_arm_arch 7;        then echo armv7;
4053         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4054         elif check_arm_arch 7S;       then echo armv7-a;
4055         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4056         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4057         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4058         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4059         fi
4060     }
4061
4062     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4063
4064     case $cpu in
4065         armv*)
4066             cpuflags="-march=$cpu"
4067             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4068         ;;
4069         *)
4070             cpuflags="-mcpu=$cpu"
4071             case $cpu in
4072                 cortex-a*)                               subarch=armv7a  ;;
4073                 cortex-r*)                               subarch=armv7r  ;;
4074                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4075                 arm11*)                                  subarch=armv6   ;;
4076                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4077                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4078                 *)                             subarch=$(probe_arm_arch) ;;
4079             esac
4080         ;;
4081     esac
4082
4083     case "$subarch" in
4084         armv5t*)    enable fast_clz                ;;
4085         armv[6-8]*)
4086             enable fast_clz
4087             disabled fast_unaligned || enable fast_unaligned
4088             ;;
4089     esac
4090
4091 elif enabled avr32; then
4092
4093     case $cpu in
4094         ap7[02]0[0-2])
4095             subarch="avr32_ap"
4096             cpuflags="-mpart=$cpu"
4097         ;;
4098         ap)
4099             subarch="avr32_ap"
4100             cpuflags="-march=$cpu"
4101         ;;
4102         uc3[ab]*)
4103             subarch="avr32_uc"
4104             cpuflags="-mcpu=$cpu"
4105         ;;
4106         uc)
4107             subarch="avr32_uc"
4108             cpuflags="-march=$cpu"
4109         ;;
4110     esac
4111
4112 elif enabled bfin; then
4113
4114     cpuflags="-mcpu=$cpu"
4115
4116 elif enabled mips; then
4117
4118     cpuflags="-march=$cpu"
4119
4120     case $cpu in
4121         24kc)
4122             disable mips64r6
4123             disable mipsfpu
4124             disable mipsdsp
4125             disable mipsdspr2
4126             disable msa
4127         ;;
4128         24kf*)
4129             disable mips64r6
4130             disable mipsdsp
4131             disable mipsdspr2
4132             disable msa
4133         ;;
4134         24kec|34kc|1004kc)
4135             disable mips64r6
4136             disable mipsfpu
4137             disable mipsdspr2
4138             disable msa
4139         ;;
4140         24kef*|34kf*|1004kf*)
4141             disable mips64r6
4142             disable mipsdspr2
4143             disable msa
4144         ;;
4145         74kc)
4146             disable mips64r6
4147             disable mipsfpu
4148             disable msa
4149         ;;
4150         74kf)
4151             disable mips64r6
4152             disable msa
4153         ;;
4154         p5600)
4155             disable mips64r6
4156             disable mipsdsp
4157             disable mipsdspr2
4158             check_cflags "-mtune=p5600" &&
4159             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4160             add_asflags "-mfp64"
4161         ;;
4162         i6400)
4163             disable mipsdsp
4164             disable mipsdspr2
4165             disable mipsfpu
4166
4167             check_cflags "-mtune=i6400 -mabi=64"
4168             check_ldflags "-mabi=64"
4169         ;;
4170         loongson*)
4171             disable mipsfpu
4172             disable mips32r2
4173             disable mips64r6
4174             disable mipsdsp
4175             disable mipsdspr2
4176             disable msa
4177             enable local_aligned_8 local_aligned_16 local_aligned_32
4178             enable simd_align_16
4179             enable fast_64bit
4180             enable fast_clz
4181             enable fast_cmov
4182             enable fast_unaligned
4183             disable aligned_stack
4184             case $cpu in
4185                 loongson3*)
4186                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4187                 ;;
4188                 loongson2e)
4189                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4190                 ;;
4191                 loongson2f)
4192                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4193                 ;;
4194             esac
4195         ;;
4196         generic)
4197             disable mips64r6
4198             disable msa
4199         ;;
4200         *)
4201             disable mipsfpu
4202             disable mips32r2
4203             disable mips64r6
4204             disable mipsdsp
4205             disable mipsdspr2
4206             disable msa
4207         ;;
4208     esac
4209
4210 elif enabled ppc; then
4211
4212     disable ldbrx
4213
4214     case $(tolower $cpu) in
4215         601|ppc601|powerpc601)
4216             cpuflags="-mcpu=601"
4217             disable altivec
4218         ;;
4219         603*|ppc603*|powerpc603*)
4220             cpuflags="-mcpu=603"
4221             disable altivec
4222         ;;
4223         604*|ppc604*|powerpc604*)
4224             cpuflags="-mcpu=604"
4225             disable altivec
4226         ;;
4227         g3|75*|ppc75*|powerpc75*)
4228             cpuflags="-mcpu=750"
4229             disable altivec
4230         ;;
4231         g4|745*|ppc745*|powerpc745*)
4232             cpuflags="-mcpu=7450"
4233             disable vsx
4234         ;;
4235         74*|ppc74*|powerpc74*)
4236             cpuflags="-mcpu=7400"
4237             disable vsx
4238         ;;
4239         g5|970|ppc970|powerpc970)
4240             cpuflags="-mcpu=970"
4241             disable vsx
4242         ;;
4243         power[3-6]*)
4244             cpuflags="-mcpu=$cpu"
4245             disable vsx
4246         ;;
4247         power[7-8]*)
4248             cpuflags="-mcpu=$cpu"
4249         ;;
4250         cell)
4251             cpuflags="-mcpu=cell"
4252             enable ldbrx
4253             disable vsx
4254         ;;
4255         e500mc)
4256             cpuflags="-mcpu=e500mc"
4257             disable altivec
4258         ;;
4259         e500v2)
4260             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4261             disable altivec
4262             disable dcbzl
4263         ;;
4264         e500)
4265             cpuflags="-mcpu=8540 -mhard-float"
4266             disable altivec
4267             disable dcbzl
4268         ;;
4269     esac
4270
4271 elif enabled sparc; then
4272
4273     case $cpu in
4274         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4275             cpuflags="-mcpu=$cpu"
4276         ;;
4277         ultrasparc*|niagara[234])
4278             cpuflags="-mcpu=$cpu"
4279         ;;
4280     esac
4281
4282 elif enabled x86; then
4283
4284     case $cpu in
4285         i[345]86|pentium)
4286             cpuflags="-march=$cpu"
4287             disable i686
4288             disable mmx
4289         ;;
4290         # targets that do NOT support nopl and conditional mov (cmov)
4291         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4292             cpuflags="-march=$cpu"
4293             disable i686
4294         ;;
4295         # targets that do support nopl and conditional mov (cmov)
4296         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4297         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4298             cpuflags="-march=$cpu"
4299             enable i686
4300             enable fast_cmov
4301         ;;
4302         # targets that do support conditional mov but on which it's slow
4303         pentium4|pentium4m|prescott|nocona)
4304             cpuflags="-march=$cpu"
4305             enable i686
4306             disable fast_cmov
4307         ;;
4308     esac
4309
4310 fi
4311
4312 if [ "$cpu" != generic ]; then
4313     add_cflags  $cpuflags
4314     add_asflags $cpuflags
4315     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4316 fi
4317
4318 # compiler sanity check
4319 check_exec <<EOF
4320 int main(void){ return 0; }
4321 EOF
4322 if test "$?" != 0; then
4323     echo "$cc is unable to create an executable file."
4324     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4325         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4326         echo "Only do this if you know what cross compiling means."
4327     fi
4328     die "C compiler test failed."
4329 fi
4330
4331 add_cppflags -D_ISOC99_SOURCE
4332 add_cxxflags -D__STDC_CONSTANT_MACROS
4333 check_cflags -std=c99
4334 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4335 #include <stdlib.h>
4336 EOF
4337 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4338 #include <stdlib.h>
4339 EOF
4340
4341 add_host_cppflags -D_ISOC99_SOURCE
4342 check_host_cflags -std=c99
4343 check_host_cflags -Wall
4344 check_host_cflags -O3
4345
4346 check_64bit(){
4347     arch32=$1
4348     arch64=$2
4349     expr=$3
4350     check_code cc "" "int test[2*($expr) - 1]" &&
4351         subarch=$arch64 || subarch=$arch32
4352 }
4353
4354 case "$arch" in
4355     aarch64|alpha|ia64)
4356         spic=$shared
4357     ;;
4358     mips)
4359         check_64bit mips mips64 '_MIPS_SIM > 1'
4360         spic=$shared
4361     ;;
4362     parisc)
4363         check_64bit parisc parisc64 'sizeof(void *) > 4'
4364         spic=$shared
4365     ;;
4366     ppc)
4367         check_64bit ppc ppc64 'sizeof(void *) > 4'
4368         spic=$shared
4369     ;;
4370     s390)
4371         check_64bit s390 s390x 'sizeof(void *) > 4'
4372         spic=$shared
4373     ;;
4374     sparc)
4375         check_64bit sparc sparc64 'sizeof(void *) > 4'
4376         spic=$shared
4377     ;;
4378     x86)
4379         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4380         # Treat x32 as x64 for now. Note it also needs spic=$shared
4381         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4382             subarch=x86_64
4383         if test "$subarch" = "x86_64"; then
4384             spic=$shared
4385         fi
4386     ;;
4387     ppc)
4388         check_cc <<EOF && subarch="ppc64"
4389         int test[(int)sizeof(char*) - 7];
4390 EOF
4391     ;;
4392 esac
4393
4394 enable $subarch
4395 enabled spic && enable_weak pic
4396
4397 # OS specific
4398 case $target_os in
4399     aix)
4400         SHFLAGS=-shared
4401         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4402         enabled shared && add_ldflags -Wl,-brtl
4403         ;;
4404     android)
4405         disable symver
4406         enable section_data_rel_ro
4407         SLIB_INSTALL_NAME='$(SLIBNAME)'
4408         SLIB_INSTALL_LINKS=
4409         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4410         ;;
4411     haiku)
4412         prefix_default="/boot/common"
4413         network_extralibs="-lnetwork"
4414         host_libs=
4415         ;;
4416     sunos)
4417         SHFLAGS='-shared -Wl,-h,$$(@F)'
4418         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4419         network_extralibs="-lsocket -lnsl"
4420         add_cppflags -D__EXTENSIONS__
4421         # When using suncc to build, the Solaris linker will mark
4422         # an executable with each instruction set encountered by
4423         # the Solaris assembler.  As our libraries contain their own
4424         # guards for processor-specific code, instead suppress
4425         # generation of the HWCAPS ELF section on Solaris x86 only.
4426         enabled_all suncc x86 &&
4427             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4428             add_ldflags -Wl,-M,mapfile
4429         nm_default='nm -P -g'
4430         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4431         ;;
4432     netbsd)
4433         disable symver
4434         oss_indev_extralibs="-lossaudio"
4435         oss_outdev_extralibs="-lossaudio"
4436         enabled gcc || check_ldflags -Wl,-zmuldefs
4437         ;;
4438     openbsd|bitrig)
4439         disable symver
4440         SHFLAGS='-shared'
4441         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4442         SLIB_INSTALL_LINKS=
4443         oss_indev_extralibs="-lossaudio"
4444         oss_outdev_extralibs="-lossaudio"
4445         ;;
4446     dragonfly)
4447         disable symver
4448         ;;
4449     freebsd)
4450         ;;
4451     bsd/os)
4452         add_extralibs -lpoll -lgnugetopt
4453         strip="strip -d"
4454         ;;
4455     darwin)
4456         enabled ppc && add_asflags -force_cpusubtype_ALL
4457         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4458         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4459         strip="${strip} -x"
4460         add_ldflags -Wl,-dynamic,-search_paths_first
4461         SLIBSUF=".dylib"
4462         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4463         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4464         objformat="macho"
4465         enabled x86_64 && objformat="macho64"
4466         enabled_any pic shared x86_64 ||
4467             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4468         ;;
4469     msys*)
4470         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4471         ;;
4472     mingw32*|mingw64*)
4473         if test $target_os = "mingw32ce"; then
4474             disable network
4475         else
4476             target_os=mingw32
4477         fi
4478         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4479         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4480         LIBTARGET=i386
4481         if enabled x86_64; then
4482             LIBTARGET="i386:x86-64"
4483         elif enabled arm; then
4484             LIBTARGET=arm-wince
4485         fi
4486         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4487         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4488         shlibdir_default="$bindir_default"
4489         SLIBPREF=""
4490         SLIBSUF=".dll"
4491         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4492         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4493         dlltool="${cross_prefix}dlltool"
4494         if check_cmd lib.exe -list; then
4495             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4496             if enabled x86_64; then
4497                 LIBTARGET=x64
4498             fi
4499         elif check_cmd $dlltool --version; then
4500             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4501         fi
4502         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4503         SLIB_INSTALL_LINKS=
4504         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4505         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4506         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4507         objformat="win32"
4508         ranlib=:
4509         enable dos_paths
4510         check_ldflags -Wl,--nxcompat,--dynamicbase
4511         # Lets work around some stupidity in binutils.
4512         # ld will strip relocations from executables even though we need them
4513         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4514         # however ld then forgets what the entry point should be (oops) so we
4515         # have to manually (re)set it.
4516         if enabled x86_32; then
4517             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4518         elif enabled x86_64; then
4519             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4520             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4521             # Set image base >4GB for extra entropy with HEASLR
4522             add_ldexeflags -Wl,--image-base,0x140000000
4523             append SHFLAGS -Wl,--image-base,0x180000000
4524         fi
4525         ;;
4526     win32|win64)
4527         disable symver
4528         if enabled shared; then
4529             # Link to the import library instead of the normal static library
4530             # for shared libs.
4531             LD_LIB='%.lib'
4532             # Cannot build both shared and static libs with MSVC or icl.
4533             disable static
4534         fi
4535         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4536         shlibdir_default="$bindir_default"
4537         SLIBPREF=""
4538         SLIBSUF=".dll"
4539         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4540         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4541         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4542         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4543         SLIB_INSTALL_LINKS=
4544         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4545         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4546         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4547         objformat="win32"
4548         ranlib=:
4549         enable dos_paths
4550         ;;
4551     cygwin*)
4552         target_os=cygwin
4553         shlibdir_default="$bindir_default"
4554         SLIBPREF="cyg"
4555         SLIBSUF=".dll"
4556         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4557         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4558         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4559         SLIB_INSTALL_LINKS=
4560         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4561         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4562         objformat="win32"
4563         enable dos_paths
4564         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4565         ;;
4566     *-dos|freedos|opendos)
4567         network_extralibs="-lsocket"
4568         objformat="coff"
4569         enable dos_paths
4570         add_cppflags -U__STRICT_ANSI__
4571         ;;
4572     linux)
4573         enable dv1394
4574         enable section_data_rel_ro
4575         ;;
4576     irix*)
4577         target_os=irix
4578         ranlib="echo ignoring ranlib"
4579         ;;
4580     os/2*)
4581         strip="lxlite -CS"
4582         ln_s="cp -f"
4583         objformat="aout"
4584         add_cppflags -D_GNU_SOURCE
4585         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4586         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4587         LIBSUF="_s.a"
4588         SLIBPREF=""
4589         SLIBSUF=".dll"
4590         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4591         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4592         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4593             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4594             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4595             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4596             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4597         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4598             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4599         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4600         enable dos_paths
4601         enable_weak os2threads
4602         ;;
4603     gnu/kfreebsd)
4604         add_cppflags -D_BSD_SOURCE
4605         ;;
4606     gnu)
4607         ;;
4608     qnx)
4609         add_cppflags -D_QNX_SOURCE
4610         network_extralibs="-lsocket"
4611         ;;
4612     symbian)
4613         SLIBSUF=".dll"
4614         enable dos_paths
4615         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4616         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4617         add_ldflags -Wl,--target1-abs,--no-undefined \
4618                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4619                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4620         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4621                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4622                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4623         ;;
4624     osf1)
4625         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4626         ;;
4627     minix)
4628         ;;
4629     plan9)
4630         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4631                      -D_REENTRANT_SOURCE        \
4632                      -D_RESEARCH_SOURCE         \
4633                      -DFD_SETSIZE=96            \
4634                      -DHAVE_SOCK_OPTS
4635         add_compat strtod.o strtod=avpriv_strtod
4636         network_extralibs='-lbsd'
4637         exeobjs=compat/plan9/main.o
4638         disable ffserver
4639         cp_f='cp'
4640         ;;
4641     none)
4642         ;;
4643     *)
4644         die "Unknown OS '$target_os'."
4645         ;;
4646 esac
4647
4648 # determine libc flavour
4649
4650 probe_libc(){
4651     pfx=$1
4652     pfx_no_=${pfx%_}
4653     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4654     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4655         eval ${pfx}libc_type=uclibc
4656         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4657     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4658         eval ${pfx}libc_type=glibc
4659         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4660     # MinGW headers can be installed on Cygwin, so check for newlib first.
4661     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4662         eval ${pfx}libc_type=newlib
4663         add_${pfx}cppflags -U__STRICT_ANSI__
4664     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4665     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4666         eval ${pfx}libc_type=mingw64
4667         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4668             add_compat msvcrt/snprintf.o
4669             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4670         fi
4671         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4672         eval test \$${pfx_no_}cc_type = "gcc" &&
4673             add_${pfx}cppflags -D__printf__=__gnu_printf__
4674     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4675          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4676         eval ${pfx}libc_type=mingw32
4677         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4678             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4679             die "ERROR: MinGW32 runtime version must be >= 3.15."
4680         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4681         eval test \$${pfx_no_}cc_type = "gcc" &&
4682             add_${pfx}cppflags -D__printf__=__gnu_printf__
4683     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4684         eval ${pfx}libc_type=msvcrt
4685         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4686             if [ "$pfx" = host_ ]; then
4687                 add_host_cppflags -Dsnprintf=_snprintf
4688             else
4689                 add_compat strtod.o strtod=avpriv_strtod
4690                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4691                                              _snprintf=avpriv_snprintf  \
4692                                              vsnprintf=avpriv_vsnprintf
4693             fi
4694         fi
4695         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4696         # 0x601 by default unless something else is set by the user.
4697         # This can easily lead to us detecting functions only present
4698         # in such new versions and producing binaries requiring windows 7.0.
4699         # Therefore explicitly set the default to XP unless the user has
4700         # set something else on the command line.
4701         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4702         # family. For these cases, configure is free to use any functions
4703         # found in the SDK headers by default. (Alternatively, we could force
4704         # _WIN32_WINNT to 0x0602 in that case.)
4705         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4706             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4707 #ifdef WINAPI_FAMILY
4708 #include <winapifamily.h>
4709 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4710 #error not desktop
4711 #endif
4712 #endif
4713 EOF
4714     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4715         eval ${pfx}libc_type=klibc
4716     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4717         eval ${pfx}libc_type=bionic
4718     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4719         eval ${pfx}libc_type=solaris
4720         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4721     fi
4722     check_${pfx}cc <<EOF
4723 #include <time.h>
4724 void *v = localtime_r;
4725 EOF
4726 test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4727 #include <time.h>
4728 void *v = localtime_r;
4729 EOF
4730
4731 }
4732
4733 probe_libc
4734 test -n "$libc_type" && enable libc_$libc_type
4735 probe_libc host_
4736 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4737
4738 case $libc_type in
4739     bionic)
4740         add_compat strtod.o strtod=avpriv_strtod
4741         ;;
4742 esac
4743
4744 # hacks for compiler/libc/os combinations
4745
4746 if enabled_all tms470 libc_glibc; then
4747     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4748     add_cppflags -D__USER_LABEL_PREFIX__=
4749     add_cppflags -D__builtin_memset=memset
4750     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4751     add_cflags   -pds=48    # incompatible redefinition of macro
4752 fi
4753
4754 if enabled_all ccc libc_glibc; then
4755     add_ldflags -Wl,-z,now  # calls to libots crash without this
4756 fi
4757
4758 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4759     add_cppflags '-I\$(SRC_PATH)/compat/float'
4760
4761 esc(){
4762     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4763 }
4764
4765 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4766
4767 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4768
4769 set_default libdir
4770 : ${shlibdir_default:="$libdir"}
4771 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4772
4773 set_default $PATHS_LIST
4774 set_default nm
4775
4776 # we need to build at least one lib type
4777 if ! enabled_any static shared; then
4778     cat <<EOF
4779 At least one library type must be built.
4780 Specify --enable-static to build the static libraries or --enable-shared to
4781 build the shared libraries as well. To only build the shared libraries specify
4782 --disable-static in addition to --enable-shared.
4783 EOF
4784     exit 1;
4785 fi
4786
4787 die_license_disabled() {
4788     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4789 }
4790
4791 die_license_disabled_gpl() {
4792     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4793 }
4794
4795 die_license_disabled gpl frei0r
4796 die_license_disabled gpl libcdio
4797 die_license_disabled gpl librubberband
4798 die_license_disabled gpl libsmbclient
4799 die_license_disabled gpl libutvideo
4800 die_license_disabled gpl libvidstab
4801 die_license_disabled gpl libx264
4802 die_license_disabled gpl libx265
4803 die_license_disabled gpl libxavs
4804 die_license_disabled gpl libxvid
4805 die_license_disabled gpl libzvbi
4806 die_license_disabled gpl x11grab
4807
4808 die_license_disabled nonfree libaacplus
4809 die_license_disabled nonfree libfaac
4810 die_license_disabled nonfree nvenc
4811 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4812 enabled gpl && die_license_disabled_gpl nonfree openssl
4813
4814 die_license_disabled version3 gmp
4815 die_license_disabled version3 libopencore_amrnb
4816 die_license_disabled version3 libopencore_amrwb
4817 die_license_disabled version3 libsmbclient
4818 die_license_disabled version3 libvo_aacenc
4819 die_license_disabled version3 libvo_amrwbenc
4820
4821 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4822
4823 disabled optimizations || check_cflags -fomit-frame-pointer
4824
4825 enable_weak_pic() {
4826     disabled pic && return
4827     enable pic
4828     add_cppflags -DPIC
4829     case "$target_os" in
4830     mingw*|cygwin*)
4831         ;;
4832     *)
4833         add_cflags -fPIC
4834         ;;
4835     esac
4836     add_asflags  -fPIC
4837 }
4838
4839 enabled pic && enable_weak_pic
4840
4841 check_cc <<EOF || die "Symbol mangling check failed."
4842 int ff_extern;
4843 EOF
4844 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4845 extern_prefix=${sym%%ff_extern*}
4846
4847 check_cc <<EOF && enable_weak inline_asm
4848 void foo(void) { __asm__ volatile ("" ::); }
4849 EOF
4850
4851 _restrict=
4852 for restrict_keyword in restrict __restrict__ __restrict; do
4853     check_cc <<EOF && _restrict=$restrict_keyword && break
4854 void foo(char * $restrict_keyword p);
4855 EOF
4856 done
4857
4858 check_cc <<EOF && enable pragma_deprecated
4859 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4860 EOF
4861
4862 check_cc <<EOF && enable attribute_packed
4863 struct { int x; } __attribute__((packed)) x;
4864 EOF
4865
4866 check_cc <<EOF && enable attribute_may_alias
4867 union { int x; } __attribute__((may_alias)) x;
4868 EOF
4869
4870 check_cc <<EOF || die "endian test failed"
4871 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4872 EOF
4873 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4874
4875 if ! enabled ppc64 || enabled bigendian; then
4876     disable vsx
4877 fi
4878
4879 check_gas() {
4880     log "check_gas using '$as' as AS"
4881     # :vararg is used on aarch64, arm and ppc altivec
4882     check_as <<EOF || return 1
4883 .macro m n, y:vararg=0
4884 \n: .int \y
4885 .endm