configure: use the user specified valgrind excutable for massif
[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   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --disable-network        disable network support [no]
134   --disable-dct            disable DCT code
135   --disable-dwt            disable DWT code
136   --disable-error-resilience disable error resilience code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142
143 Hardware accelerators:
144   --disable-dxva2          disable DXVA2 code [autodetect]
145   --disable-vaapi          disable VAAPI code [autodetect]
146   --enable-vda             enable VDA code
147   --disable-vdpau          disable VDPAU code [autodetect]
148
149 Individual component options:
150   --disable-everything     disable all components listed below
151   --disable-encoder=NAME   disable encoder NAME
152   --enable-encoder=NAME    enable encoder NAME
153   --disable-encoders       disable all encoders
154   --disable-decoder=NAME   disable decoder NAME
155   --enable-decoder=NAME    enable decoder NAME
156   --disable-decoders       disable all decoders
157   --disable-hwaccel=NAME   disable hwaccel NAME
158   --enable-hwaccel=NAME    enable hwaccel NAME
159   --disable-hwaccels       disable all hwaccels
160   --disable-muxer=NAME     disable muxer NAME
161   --enable-muxer=NAME      enable muxer NAME
162   --disable-muxers         disable all muxers
163   --disable-demuxer=NAME   disable demuxer NAME
164   --enable-demuxer=NAME    enable demuxer NAME
165   --disable-demuxers       disable all demuxers
166   --enable-parser=NAME     enable parser NAME
167   --disable-parser=NAME    disable parser NAME
168   --disable-parsers        disable all parsers
169   --enable-bsf=NAME        enable bitstream filter NAME
170   --disable-bsf=NAME       disable bitstream filter NAME
171   --disable-bsfs           disable all bitstream filters
172   --enable-protocol=NAME   enable protocol NAME
173   --disable-protocol=NAME  disable protocol NAME
174   --disable-protocols      disable all protocols
175   --enable-indev=NAME      enable input device NAME
176   --disable-indev=NAME     disable input device NAME
177   --disable-indevs         disable input devices
178   --enable-outdev=NAME     enable output device NAME
179   --disable-outdev=NAME    disable output device NAME
180   --disable-outdevs        disable output devices
181   --disable-devices        disable all devices
182   --enable-filter=NAME     enable filter NAME
183   --disable-filter=NAME    disable filter NAME
184   --disable-filters        disable all filters
185
186 External library support:
187   --enable-avisynth        enable reading of AVISynth script files [no]
188   --disable-bzlib          disable bzlib [autodetect]
189   --enable-fontconfig      enable fontconfig
190   --enable-frei0r          enable frei0r video filtering
191   --enable-gnutls          enable gnutls [no]
192   --disable-iconv          disable iconv [autodetect]
193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
194   --enable-libass          enable libass subtitles rendering [no]
195   --enable-libbluray       enable BluRay reading using libbluray [no]
196   --enable-libcaca         enable textual display using libcaca
197   --enable-libcelt         enable CELT decoding via libcelt [no]
198   --enable-libcdio         enable audio CD grabbing with libcdio
199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
200                            and libraw1394 [no]
201   --enable-libfaac         enable AAC encoding via libfaac [no]
202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
204   --enable-libfreetype     enable libfreetype [no]
205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
208   --enable-libmodplug      enable ModPlug via libmodplug [no]
209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
210   --enable-libnut          enable NUT (de)muxing via libnut,
211                            native (de)muxer exists [no]
212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
214   --enable-libopencv       enable video filtering via libopencv [no]
215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
216   --enable-libopus         enable Opus decoding via libopus [no]
217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
218   --enable-libquvi         enable quvi input via libquvi [no]
219   --enable-librtmp         enable RTMP[E] support via librtmp [no]
220   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
221   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
222   --enable-libsoxr         enable Include libsoxr resampling [no]
223   --enable-libspeex        enable Speex de/encoding via libspeex [no]
224   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
225   --enable-libtheora       enable Theora encoding via libtheora [no]
226   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
227   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
228   --enable-libv4l2         enable libv4l2/v4l-utils [no]
229   --enable-libvidstab      enable video stabilization using vid.stab [no]
230   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
231   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
232   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
233                            native implementation exists [no]
234   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
235   --enable-libx264         enable H.264 encoding via x264 [no]
236   --enable-libxavs         enable AVS encoding via xavs [no]
237   --enable-libxvid         enable Xvid encoding via xvidcore,
238                            native MPEG-4/Xvid encoder exists [no]
239   --enable-libzmq          enable message passing via libzmq [no]
240   --enable-openal          enable OpenAL 1.1 capture support [no]
241   --enable-opencl          enable OpenCL code
242   --enable-openssl         enable openssl [no]
243   --enable-x11grab         enable X11 grabbing [no]
244   --disable-zlib           disable zlib [autodetect]
245
246 Advanced options (experts only):
247   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
248   --enable-cross-compile   assume a cross-compiler is used
249   --sysroot=PATH           root of cross-build tree
250   --sysinclude=PATH        location of cross-build system headers
251   --target-os=OS           compiler targets OS [$target_os]
252   --target-exec=CMD        command to run executables on target
253   --target-path=DIR        path to view of build directory on target
254   --toolchain=NAME         set tool defaults according to NAME
255   --nm=NM                  use nm tool NM [$nm_default]
256   --ar=AR                  use archive tool AR [$ar_default]
257   --as=AS                  use assembler AS [$as_default]
258   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
259   --cc=CC                  use C compiler CC [$cc_default]
260   --cxx=CXX                use C compiler CXX [$cxx_default]
261   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
262   --ld=LD                  use linker LD [$ld_default]
263   --host-cc=HOSTCC         use host C compiler HOSTCC
264   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
265   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
266   --host-ld=HOSTLD         use host linker HOSTLD
267   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
268   --host-libs=HLIBS        use libs HLIBS when linking for host
269   --host-os=OS             compiler host OS [$target_os]
270   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
271   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
272   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
273   --extra-libs=ELIBS       add ELIBS [$ELIBS]
274   --extra-version=STRING   version string suffix []
275   --optflags=OPTFLAGS      override optimization-related compiler flags
276   --build-suffix=SUFFIX    library name suffix []
277   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
278   --progs-suffix=SUFFIX    program name suffix []
279   --arch=ARCH              select architecture [$arch]
280   --cpu=CPU                select the minimum required CPU (affects
281                            instruction selection, may crash on older CPUs)
282   --enable-pic             build position-independent code
283   --enable-sram            allow use of on-chip SRAM
284   --enable-thumb           compile for Thumb instruction set
285   --disable-symver         disable symbol versioning
286   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
287   --disable-safe-bitstream-reader
288                            disable buffer boundary checking in bitreaders
289                            (faster, but may crash)
290   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
291   --enable-lto             use link-time optimization
292
293 Optimization options (experts only):
294   --disable-asm            disable all assembler optimizations
295   --disable-altivec        disable AltiVec optimizations
296   --disable-amd3dnow       disable 3DNow! optimizations
297   --disable-amd3dnowext    disable 3DNow! extended optimizations
298   --disable-mmx            disable MMX optimizations
299   --disable-mmxext         disable MMXEXT optimizations
300   --disable-sse            disable SSE optimizations
301   --disable-sse2           disable SSE2 optimizations
302   --disable-sse3           disable SSE3 optimizations
303   --disable-ssse3          disable SSSE3 optimizations
304   --disable-sse4           disable SSE4 optimizations
305   --disable-sse42          disable SSE4.2 optimizations
306   --disable-avx            disable AVX optimizations
307   --disable-fma4           disable FMA4 optimizations
308   --disable-armv5te        disable armv5te optimizations
309   --disable-armv6          disable armv6 optimizations
310   --disable-armv6t2        disable armv6t2 optimizations
311   --disable-vfp            disable VFP optimizations
312   --disable-neon           disable NEON optimizations
313   --disable-vis            disable VIS optimizations
314   --disable-inline-asm     disable use of inline assembler
315   --disable-yasm           disable use of yasm assembler
316   --disable-mips32r2       disable MIPS32R2 optimizations
317   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
318   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
319   --disable-mipsfpu        disable floating point MIPS optimizations
320   --disable-fast-unaligned consider unaligned accesses slow
321
322 Developer options (useful when working on FFmpeg itself):
323   --disable-debug          disable debugging symbols
324   --enable-debug=LEVEL     set the debug level [$debuglevel]
325   --disable-optimizations  disable compiler optimizations
326   --enable-extra-warnings  enable more compiler warnings
327   --disable-stripping      disable stripping of executables and shared libraries
328   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
329                            2 causes a slowdown at runtime.
330   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
331   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
332                            leaks and errors, using the specified valgrind binary.
333                            Cannot be combined with --target-exec
334   --enable-ftrapv          Trap arithmetic overflows
335   --samples=PATH           location of test samples for FATE, if not set use
336                            \$FATE_SAMPLES at make invocation time.
337   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
338                            should be used only for debugging purposes)
339   --enable-random          randomly enable/disable components
340   --disable-random
341   --enable-random=LIST     randomly enable/disable specific components or
342   --disable-random=LIST    component groups. LIST is a comma-separated list
343                            of NAME[:PROB] entries where NAME is a component
344                            (group) and PROB the probability associated with
345                            NAME (default 0.5).
346   --random-seed=VALUE      seed value for --enable/disable-random
347
348 NOTE: Object files are built at the place where configure is launched.
349 EOF
350   exit 0
351 }
352
353 quotes='""'
354
355 log(){
356     echo "$@" >> $logfile
357 }
358
359 log_file(){
360     log BEGIN $1
361     pr -n -t $1 >> $logfile
362     log END $1
363 }
364
365 echolog(){
366     log "$@"
367     echo "$@"
368 }
369
370 warn(){
371     log "WARNING: $*"
372     WARNINGS="${WARNINGS}WARNING: $*\n"
373 }
374
375 die(){
376     echolog "$@"
377     cat <<EOF
378
379 If you think configure made a mistake, make sure you are using the latest
380 version from Git.  If the latest version fails, report the problem to the
381 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
382 EOF
383     if disabled logging; then
384         cat <<EOF
385 Rerun configure with logging enabled (do not use --disable-logging), and
386 include the log this produces with your report.
387 EOF
388     else
389         cat <<EOF
390 Include the log file "$logfile" produced by configure as this will help
391 solving the problem.
392 EOF
393     fi
394     exit 1
395 }
396
397 # Avoid locale weirdness, besides we really just want to translate ASCII.
398 toupper(){
399     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
400 }
401
402 tolower(){
403     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
404 }
405
406 c_escape(){
407     echo "$*" | sed 's/["\\]/\\\0/g'
408 }
409
410 sh_quote(){
411     v=$(echo "$1" | sed "s/'/'\\\\''/g")
412     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
413     echo "$v"
414 }
415
416 cleanws(){
417     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
418 }
419
420 filter(){
421     pat=$1
422     shift
423     for v; do
424         eval "case $v in $pat) echo $v ;; esac"
425     done
426 }
427
428 filter_out(){
429     pat=$1
430     shift
431     for v; do
432         eval "case $v in $pat) ;; *) echo $v ;; esac"
433     done
434 }
435
436 map(){
437     m=$1
438     shift
439     for v; do eval $m; done
440 }
441
442 add_suffix(){
443     suffix=$1
444     shift
445     for v; do echo ${v}${suffix}; done
446 }
447
448 set_all(){
449     value=$1
450     shift
451     for var in $*; do
452         eval $var=$value
453     done
454 }
455
456 set_weak(){
457     value=$1
458     shift
459     for var; do
460         eval : \${$var:=$value}
461     done
462 }
463
464 sanitize_var_name(){
465     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
466 }
467
468 set_safe(){
469     var=$1
470     shift
471     eval $(sanitize_var_name "$var")='$*'
472 }
473
474 get_safe(){
475     eval echo \$$(sanitize_var_name "$1")
476 }
477
478 pushvar(){
479     for pvar in $*; do
480         eval level=\${${pvar}_level:=0}
481         eval ${pvar}_${level}="\$$pvar"
482         eval ${pvar}_level=$(($level+1))
483     done
484 }
485
486 popvar(){
487     for pvar in $*; do
488         eval level=\${${pvar}_level:-0}
489         test $level = 0 && continue
490         eval level=$(($level-1))
491         eval $pvar="\${${pvar}_${level}}"
492         eval ${pvar}_level=$level
493         eval unset ${pvar}_${level}
494     done
495 }
496
497 enable(){
498     set_all yes $*
499 }
500
501 disable(){
502     set_all no $*
503 }
504
505 enable_weak(){
506     set_weak yes $*
507 }
508
509 disable_weak(){
510     set_weak no $*
511 }
512
513 enable_safe(){
514     for var; do
515         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
516     done
517 }
518
519 disable_safe(){
520     for var; do
521         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
522     done
523 }
524
525 do_enable_deep(){
526     for var; do
527         enabled $var && continue
528         eval sel="\$${var}_select"
529         eval sgs="\$${var}_suggest"
530         pushvar var sgs
531         enable_deep $sel
532         popvar sgs
533         enable_deep_weak $sgs
534         popvar var
535     done
536 }
537
538 enable_deep(){
539     do_enable_deep $*
540     enable $*
541 }
542
543 enable_deep_weak(){
544     for var; do
545         disabled $var && continue
546         pushvar var
547         do_enable_deep $var
548         popvar var
549         enable_weak $var
550     done
551 }
552
553 enabled(){
554     test "${1#!}" = "$1" && op== || op=!=
555     eval test "x\$${1#!}" $op "xyes"
556 }
557
558 disabled(){
559     test "${1#!}" = "$1" && op== || op=!=
560     eval test "x\$${1#!}" $op "xno"
561 }
562
563 enabled_all(){
564     for opt; do
565         enabled $opt || return 1
566     done
567 }
568
569 disabled_all(){
570     for opt; do
571         disabled $opt || return 1
572     done
573 }
574
575 enabled_any(){
576     for opt; do
577         enabled $opt && return 0
578     done
579 }
580
581 disabled_any(){
582     for opt; do
583         disabled $opt && return 0
584     done
585     return 1
586 }
587
588 set_default(){
589     for opt; do
590         eval : \${$opt:=\$${opt}_default}
591     done
592 }
593
594 is_in(){
595     value=$1
596     shift
597     for var in $*; do
598         [ $var = $value ] && return 0
599     done
600     return 1
601 }
602
603 do_check_deps(){
604     for cfg; do
605         cfg="${cfg#!}"
606         enabled ${cfg}_checking && die "Circular dependency for $cfg."
607         disabled ${cfg}_checking && continue
608         enable ${cfg}_checking
609         append allopts $cfg
610
611         eval dep_all="\$${cfg}_deps"
612         eval dep_any="\$${cfg}_deps_any"
613         eval dep_sel="\$${cfg}_select"
614         eval dep_sgs="\$${cfg}_suggest"
615         eval dep_ifa="\$${cfg}_if"
616         eval dep_ifn="\$${cfg}_if_any"
617
618         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
619         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
620         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
621
622         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
623         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
624         enabled_all  $dep_all || disable $cfg
625         enabled_any  $dep_any || disable $cfg
626         disabled_any $dep_sel && disable $cfg
627
628         if enabled $cfg; then
629             enable_deep $dep_sel
630             enable_deep_weak $dep_sgs
631         fi
632
633         disable ${cfg}_checking
634     done
635 }
636
637 check_deps(){
638     unset allopts
639
640     do_check_deps "$@"
641
642     for cfg in $allopts; do
643         enabled $cfg || continue
644         eval dep_extralibs="\$${cfg}_extralibs"
645         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
646     done
647 }
648
649 print_config(){
650     pfx=$1
651     files=$2
652     shift 2
653     map 'eval echo "$v \${$v:-no}"' "$@" |
654     awk "BEGIN { split(\"$files\", files) }
655         {
656             c = \"$pfx\" toupper(\$1);
657             v = \$2;
658             sub(/yes/, 1, v);
659             sub(/no/,  0, v);
660             for (f in files) {
661                 file = files[f];
662                 if (file ~ /\\.h\$/) {
663                     printf(\"#define %s %d\\n\", c, v) >>file;
664                 } else if (file ~ /\\.asm\$/) {
665                     printf(\"%%define %s %d\\n\", c, v) >>file;
666                 } else if (file ~ /\\.mak\$/) {
667                     n = -v ? \"\" : \"!\";
668                     printf(\"%s%s=yes\\n\", n, c) >>file;
669                 } else if (file ~ /\\.texi\$/) {
670                     pre = -v ? \"\" : \"@c \";
671                     yesno = \$2;
672                     c2 = tolower(c);
673                     gsub(/_/, \"-\", c2);
674                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
675                 }
676             }
677         }"
678 }
679
680 print_enabled(){
681     suf=$1
682     shift
683     for v; do
684         enabled $v && printf "%s\n" ${v%$suf};
685     done
686 }
687
688 append(){
689     var=$1
690     shift
691     eval "$var=\"\$$var $*\""
692 }
693
694 prepend(){
695     var=$1
696     shift
697     eval "$var=\"$* \$$var\""
698 }
699
700 add_cppflags(){
701     append CPPFLAGS "$@"
702 }
703
704 add_cflags(){
705     append CFLAGS $($cflags_filter "$@")
706 }
707
708 add_cxxflags(){
709     append CXXFLAGS $($cflags_filter "$@")
710 }
711
712 add_asflags(){
713     append ASFLAGS $($asflags_filter "$@")
714 }
715
716 add_ldflags(){
717     append LDFLAGS $($ldflags_filter "$@")
718 }
719
720 add_extralibs(){
721     prepend extralibs $($ldflags_filter "$@")
722 }
723
724 add_host_cppflags(){
725     append host_cppflags "$@"
726 }
727
728 add_host_cflags(){
729     append host_cflags $($host_cflags_filter "$@")
730 }
731
732 add_host_ldflags(){
733     append host_ldflags $($host_ldflags_filter "$@")
734 }
735
736 add_compat(){
737     append compat_objs $1
738     shift
739     map 'add_cppflags -D$v' "$@"
740 }
741
742 check_cmd(){
743     log "$@"
744     "$@" >> $logfile 2>&1
745 }
746
747 cc_o(){
748     eval printf '%s\\n' $CC_O
749 }
750
751 cc_e(){
752     eval printf '%s\\n' $CC_E
753 }
754
755 check_cc(){
756     log check_cc "$@"
757     cat > $TMPC
758     log_file $TMPC
759     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
760 }
761
762 check_cxx(){
763     log check_cxx "$@"
764     cat > $TMPCPP
765     log_file $TMPCPP
766     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
767 }
768
769 check_cpp(){
770     log check_cpp "$@"
771     cat > $TMPC
772     log_file $TMPC
773     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
774 }
775
776 as_o(){
777     eval printf '%s\\n' $AS_O
778 }
779
780 check_as(){
781     log check_as "$@"
782     cat > $TMPS
783     log_file $TMPS
784     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
785 }
786
787 check_inline_asm(){
788     log check_inline_asm "$@"
789     name="$1"
790     code="$2"
791     shift 2
792     disable $name
793     check_cc "$@" <<EOF && enable $name
794 void foo(void){ __asm__ volatile($code); }
795 EOF
796 }
797
798 check_insn(){
799     log check_insn "$@"
800     check_inline_asm ${1}_inline "\"$2\""
801     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
802 }
803
804 check_yasm(){
805     log check_yasm "$@"
806     echo "$1" > $TMPS
807     log_file $TMPS
808     shift 1
809     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
810 }
811
812 ld_o(){
813     eval printf '%s\\n' $LD_O
814 }
815
816 check_ld(){
817     log check_ld "$@"
818     type=$1
819     shift 1
820     flags=$(filter_out '-l*|*.so' $@)
821     libs=$(filter '-l*|*.so' $@)
822     check_$type $($cflags_filter $flags) || return
823     flags=$($ldflags_filter $flags)
824     libs=$($ldflags_filter $libs)
825     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
826 }
827
828 check_code(){
829     log check_code "$@"
830     check=$1
831     headers=$2
832     code=$3
833     shift 3
834     {
835         for hdr in $headers; do
836             echo "#include <$hdr>"
837         done
838         echo "int main(void) { $code; return 0; }"
839     } | check_$check "$@"
840 }
841
842 check_cppflags(){
843     log check_cppflags "$@"
844     check_cc "$@" <<EOF && append CPPFLAGS "$@"
845 int x;
846 EOF
847 }
848
849 check_cflags(){
850     log check_cflags "$@"
851     set -- $($cflags_filter "$@")
852     check_cc "$@" <<EOF && append CFLAGS "$@"
853 int x;
854 EOF
855 }
856
857 check_cxxflags(){
858     log check_cxxflags "$@"
859     set -- $($cflags_filter "$@")
860     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
861 int x;
862 EOF
863 }
864
865 test_ldflags(){
866     log test_ldflags "$@"
867     check_ld "cc" "$@" <<EOF
868 int main(void){ return 0; }
869 EOF
870 }
871
872 check_ldflags(){
873     log check_ldflags "$@"
874     test_ldflags "$@" && add_ldflags "$@"
875 }
876
877 check_header(){
878     log check_header "$@"
879     header=$1
880     shift
881     disable_safe $header
882     check_cpp "$@" <<EOF && enable_safe $header
883 #include <$header>
884 int x;
885 EOF
886 }
887
888 check_func(){
889     log check_func "$@"
890     func=$1
891     shift
892     disable $func
893     check_ld "cc" "$@" <<EOF && enable $func
894 extern int $func();
895 int main(void){ $func(); }
896 EOF
897 }
898
899 check_mathfunc(){
900     log check_mathfunc "$@"
901     func=$1
902     narg=$2
903     shift 2
904     test $narg = 2 && args="f, g" || args="f"
905     disable $func
906     check_ld "cc" "$@" <<EOF && enable $func
907 #include <math.h>
908 float foo(float f, float g) { return $func($args); }
909 int main(void){ return (int) foo; }
910 EOF
911 }
912
913 check_func_headers(){
914     log check_func_headers "$@"
915     headers=$1
916     funcs=$2
917     shift 2
918     {
919         for hdr in $headers; do
920             echo "#include <$hdr>"
921         done
922         for func in $funcs; do
923             echo "long check_$func(void) { return (long) $func; }"
924         done
925         echo "int main(void) { return 0; }"
926     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
927 }
928
929 check_class_headers_cpp(){
930     log check_class_headers_cpp "$@"
931     headers=$1
932     classes=$2
933     shift 2
934     {
935         for hdr in $headers; do
936             echo "#include <$hdr>"
937         done
938         echo "int main(void) { "
939         i=1
940         for class in $classes; do
941             echo "$class obj$i;"
942             i=$(expr $i + 1)
943         done
944         echo "return 0; }"
945     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
946 }
947
948 check_cpp_condition(){
949     log check_cpp_condition "$@"
950     header=$1
951     condition=$2
952     shift 2
953     check_cpp "$@" <<EOF
954 #include <$header>
955 #if !($condition)
956 #error "unsatisfied condition: $condition"
957 #endif
958 EOF
959 }
960
961 check_lib(){
962     log check_lib "$@"
963     header="$1"
964     func="$2"
965     shift 2
966     check_header $header && check_func $func "$@" && add_extralibs "$@"
967 }
968
969 check_lib2(){
970     log check_lib2 "$@"
971     headers="$1"
972     funcs="$2"
973     shift 2
974     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
975 }
976
977 check_lib_cpp(){
978     log check_lib_cpp "$@"
979     headers="$1"
980     classes="$2"
981     shift 2
982     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
983 }
984
985 check_pkg_config(){
986     log check_pkg_config "$@"
987     pkg="$1"
988     headers="$2"
989     funcs="$3"
990     shift 3
991     $pkg_config --exists $pkg 2>/dev/null || return
992     pkg_cflags=$($pkg_config --cflags $pkg)
993     pkg_libs=$($pkg_config --libs $pkg)
994     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
995         set_safe ${pkg}_cflags $pkg_cflags   &&
996         set_safe ${pkg}_libs   $pkg_libs
997 }
998
999 check_exec(){
1000     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1001 }
1002
1003 check_exec_crash(){
1004     code=$(cat)
1005
1006     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1007     # are safe but may not be available everywhere.  Thus we use
1008     # raise(SIGTERM) instead.  The check is run in a subshell so we
1009     # can redirect the "Terminated" message from the shell.  SIGBUS
1010     # is not defined by standard C so it is used conditionally.
1011
1012     (check_exec "$@") >> $logfile 2>&1 <<EOF
1013 #include <signal.h>
1014 static void sighandler(int sig){
1015     raise(SIGTERM);
1016 }
1017 int func(void){
1018     $code
1019 }
1020 int (*func_ptr)(void) = func;
1021 int main(void){
1022     signal(SIGILL, sighandler);
1023     signal(SIGFPE, sighandler);
1024     signal(SIGSEGV, sighandler);
1025 #ifdef SIGBUS
1026     signal(SIGBUS, sighandler);
1027 #endif
1028     return func_ptr();
1029 }
1030 EOF
1031 }
1032
1033 check_type(){
1034     log check_type "$@"
1035     headers=$1
1036     type=$2
1037     shift 2
1038     disable_safe "$type"
1039     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1040 }
1041
1042 check_struct(){
1043     log check_struct "$@"
1044     headers=$1
1045     struct=$2
1046     member=$3
1047     shift 3
1048     disable_safe "${struct}_${member}"
1049     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1050         enable_safe "${struct}_${member}"
1051 }
1052
1053 check_builtin(){
1054     log check_builtin "$@"
1055     name=$1
1056     headers=$2
1057     builtin=$3
1058     shift 3
1059     disable "$name"
1060     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1061 }
1062
1063 require(){
1064     name="$1"
1065     header="$2"
1066     func="$3"
1067     shift 3
1068     check_lib $header $func "$@" || die "ERROR: $name not found"
1069 }
1070
1071 require2(){
1072     name="$1"
1073     headers="$2"
1074     func="$3"
1075     shift 3
1076     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1077 }
1078
1079 require_cpp(){
1080     name="$1"
1081     headers="$2"
1082     classes="$3"
1083     shift 3
1084     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1085 }
1086
1087 require_pkg_config(){
1088     pkg="$1"
1089     check_pkg_config "$@" || die "ERROR: $pkg not found"
1090     add_cflags    $(get_safe ${pkg}_cflags)
1091     add_extralibs $(get_safe ${pkg}_libs)
1092 }
1093
1094 hostcc_o(){
1095     eval printf '%s\\n' $HOSTCC_O
1096 }
1097
1098 check_host_cc(){
1099     log check_host_cc "$@"
1100     cat > $TMPC
1101     log_file $TMPC
1102     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1103 }
1104
1105 check_host_cppflags(){
1106     log check_host_cppflags "$@"
1107     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1108 int x;
1109 EOF
1110 }
1111
1112 check_host_cflags(){
1113     log check_host_cflags "$@"
1114     set -- $($host_cflags_filter "$@")
1115     check_host_cc "$@" <<EOF && append host_cflags "$@"
1116 int x;
1117 EOF
1118 }
1119
1120 apply(){
1121     file=$1
1122     shift
1123     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1124 }
1125
1126 cp_if_changed(){
1127     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1128     mkdir -p "$(dirname $2)"
1129     $cp_f "$1" "$2"
1130 }
1131
1132 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1133 # system-dependent things.
1134
1135 COMPONENT_LIST="
1136     bsfs
1137     decoders
1138     demuxers
1139     encoders
1140     filters
1141     hwaccels
1142     indevs
1143     muxers
1144     outdevs
1145     parsers
1146     protocols
1147 "
1148
1149 EXTERNAL_LIBRARY_LIST="
1150     avisynth
1151     bzlib
1152     crystalhd
1153     fontconfig
1154     frei0r
1155     gnutls
1156     iconv
1157     libaacplus
1158     libass
1159     libbluray
1160     libcaca
1161     libcdio
1162     libcelt
1163     libdc1394
1164     libfaac
1165     libfdk_aac
1166     libflite
1167     libfreetype
1168     libgsm
1169     libiec61883
1170     libilbc
1171     libmodplug
1172     libmp3lame
1173     libnut
1174     libopencore_amrnb
1175     libopencore_amrwb
1176     libopencv
1177     libopenjpeg
1178     libopus
1179     libpulse
1180     libquvi
1181     librtmp
1182     libschroedinger
1183     libshine
1184     libsoxr
1185     libspeex
1186     libstagefright_h264
1187     libtheora
1188     libtwolame
1189     libutvideo
1190     libv4l2
1191     libvidstab
1192     libvo_aacenc
1193     libvo_amrwbenc
1194     libvorbis
1195     libvpx
1196     libx264
1197     libxavs
1198     libxvid
1199     libzmq
1200     openal
1201     opencl
1202     openssl
1203     x11grab
1204     zlib
1205 "
1206
1207 DOCUMENT_LIST="
1208     doc
1209     htmlpages
1210     manpages
1211     podpages
1212     txtpages
1213 "
1214
1215 HWACCEL_LIST="
1216     dxva2
1217     vaapi
1218     vda
1219     vdpau
1220 "
1221
1222 LIBRARY_LIST="
1223     avcodec
1224     avdevice
1225     avfilter
1226     avformat
1227     avresample
1228     avutil
1229     postproc
1230     swresample
1231     swscale
1232 "
1233
1234 PROGRAM_LIST="
1235     ffplay
1236     ffprobe
1237     ffserver
1238     ffmpeg
1239 "
1240
1241 CONFIG_LIST="
1242     $COMPONENT_LIST
1243     $DOCUMENT_LIST
1244     $EXTERNAL_LIBRARY_LIST
1245     $HWACCEL_LIST
1246     $LIBRARY_LIST
1247     $PROGRAM_LIST
1248     dct
1249     dwt
1250     error_resilience
1251     fast_unaligned
1252     fft
1253     ftrapv
1254     gpl
1255     gray
1256     hardcoded_tables
1257     incompatible_fork_abi
1258     lsp
1259     lzo
1260     mdct
1261     memalign_hack
1262     memory_poisoning
1263     network
1264     nonfree
1265     pic
1266     rdft
1267     runtime_cpudetect
1268     safe_bitstream_reader
1269     shared
1270     small
1271     sram
1272     static
1273     swscale_alpha
1274     thumb
1275     version3
1276     xmm_clobber_test
1277 "
1278
1279 THREADS_LIST='
1280     pthreads
1281     w32threads
1282     os2threads
1283 '
1284
1285 ATOMICS_LIST='
1286     atomics_gcc
1287     atomics_suncc
1288     atomics_win32
1289 '
1290
1291 ARCH_LIST='
1292     aarch64
1293     alpha
1294     arm
1295     avr32
1296     avr32_ap
1297     avr32_uc
1298     bfin
1299     ia64
1300     m68k
1301     mips
1302     mips64
1303     parisc
1304     ppc
1305     ppc64
1306     s390
1307     sh4
1308     sparc
1309     sparc64
1310     tilegx
1311     tilepro
1312     tomi
1313     x86
1314     x86_32
1315     x86_64
1316 '
1317
1318 ARCH_EXT_LIST_ARM='
1319     armv5te
1320     armv6
1321     armv6t2
1322     neon
1323     vfp
1324     vfpv3
1325 '
1326
1327 ARCH_EXT_LIST_X86='
1328     amd3dnow
1329     amd3dnowext
1330     avx
1331     fma4
1332     mmx
1333     mmxext
1334     sse
1335     sse2
1336     sse3
1337     sse4
1338     sse42
1339     ssse3
1340 '
1341
1342 ARCH_EXT_LIST="
1343     $ARCH_EXT_LIST_ARM
1344     $ARCH_EXT_LIST_X86
1345     altivec
1346     ppc4xx
1347     vis
1348     mipsfpu
1349     mips32r2
1350     mipsdspr1
1351     mipsdspr2
1352 "
1353
1354 HAVE_LIST_CMDLINE='
1355     inline_asm
1356     symver
1357     yasm
1358 '
1359
1360 HAVE_LIST_PUB='
1361     bigendian
1362     fast_unaligned
1363     incompatible_fork_abi
1364 '
1365
1366 MATH_FUNCS="
1367     atanf
1368     atan2f
1369     cbrt
1370     cbrtf
1371     cosf
1372     exp2
1373     exp2f
1374     expf
1375     isinf
1376     isnan
1377     ldexpf
1378     llrint
1379     llrintf
1380     log2
1381     log2f
1382     log10f
1383     lrint
1384     lrintf
1385     powf
1386     rint
1387     round
1388     roundf
1389     sinf
1390     trunc
1391     truncf
1392 "
1393
1394 HAVE_LIST="
1395     $ARCH_EXT_LIST
1396     $(add_suffix _external $ARCH_EXT_LIST)
1397     $(add_suffix _inline   $ARCH_EXT_LIST)
1398     $HAVE_LIST_CMDLINE
1399     $HAVE_LIST_PUB
1400     $THREADS_LIST
1401     $ATOMICS_LIST
1402     $MATH_FUNCS
1403     access
1404     aligned_malloc
1405     aligned_stack
1406     alsa_asoundlib_h
1407     altivec_h
1408     arpa_inet_h
1409     asm_mod_q
1410     asm_mod_y
1411     asm_types_h
1412     atomic_cas_ptr
1413     atomics_native
1414     attribute_may_alias
1415     attribute_packed
1416     cdio_paranoia_h
1417     cdio_paranoia_paranoia_h
1418     CL_cl_h
1419     clock_gettime
1420     closesocket
1421     CommandLineToArgvW
1422     cpunop
1423     CryptGenRandom
1424     dcbzl
1425     dev_bktr_ioctl_bt848_h
1426     dev_bktr_ioctl_meteor_h
1427     dev_ic_bt8xx_h
1428     dev_video_bktr_ioctl_bt848_h
1429     dev_video_meteor_ioctl_meteor_h
1430     direct_h
1431     dlfcn_h
1432     dlopen
1433     dos_paths
1434     dxva_h
1435     ebp_available
1436     ebx_available
1437     fast_64bit
1438     fast_clz
1439     fast_cmov
1440     fcntl
1441     fork
1442     getaddrinfo
1443     gethrtime
1444     getopt
1445     GetProcessAffinityMask
1446     GetProcessMemoryInfo
1447     GetProcessTimes
1448     GetSystemTimeAsFileTime
1449     getrusage
1450     getservbyport
1451     gettimeofday
1452     glob
1453     gnu_as
1454     gsm_h
1455     i686
1456     ibm_asm
1457     inet_aton
1458     io_h
1459     isatty
1460     jack_port_get_latency_range
1461     kbhit
1462     ldbrx
1463     libdc1394_1
1464     libdc1394_2
1465     local_aligned_16
1466     local_aligned_8
1467     localtime_r
1468     loongson
1469     lzo1x_999_compress
1470     machine_ioctl_bt848_h
1471     machine_ioctl_meteor_h
1472     machine_rw_barrier
1473     makeinfo
1474     malloc_h
1475     MapViewOfFile
1476     memalign
1477     MemoryBarrier
1478     mkstemp
1479     mm_empty
1480     mmap
1481     mprotect
1482     msvcrt
1483     nanosleep
1484     openjpeg_1_5_openjpeg_h
1485     PeekNamedPipe
1486     perl
1487     pod2man
1488     poll_h
1489     posix_memalign
1490     pthread_cancel
1491     rdtsc
1492     rsync_contimeout
1493     sched_getaffinity
1494     sdl
1495     SetConsoleTextAttribute
1496     setmode
1497     setrlimit
1498     Sleep
1499     sndio_h
1500     socklen_t
1501     soundcard_h
1502     strerror_r
1503     struct_addrinfo
1504     struct_group_source_req
1505     struct_ip_mreq_source
1506     struct_ipv6_mreq
1507     struct_pollfd
1508     struct_rusage_ru_maxrss
1509     struct_sctp_event_subscribe
1510     struct_sockaddr_in6
1511     struct_sockaddr_sa_len
1512     struct_sockaddr_storage
1513     struct_v4l2_frmivalenum_discrete
1514     symver_asm_label
1515     symver_gnu_asm
1516     sync_val_compare_and_swap
1517     sysconf
1518     sysctl
1519     sys_mman_h
1520     sys_param_h
1521     sys_resource_h
1522     sys_select_h
1523     sys_soundcard_h
1524     sys_time_h
1525     sys_videoio_h
1526     termios_h
1527     texi2html
1528     threads
1529     unistd_h
1530     usleep
1531     vfp_args
1532     VirtualAlloc
1533     windows_h
1534     winsock2_h
1535     xform_asm
1536     xmm_clobbers
1537 "
1538
1539 # options emitted with CONFIG_ prefix but not available on the command line
1540 CONFIG_EXTRA="
1541     aandcttables
1542     ac3dsp
1543     audio_frame_queue
1544     dsputil
1545     frame_thread_encoder
1546     gcrypt
1547     golomb
1548     gplv3
1549     h264chroma
1550     h264dsp
1551     h264pred
1552     h264qpel
1553     hpeldsp
1554     huffman
1555     lgplv3
1556     lpc
1557     mpegaudio
1558     mpegaudiodsp
1559     mpegvideo
1560     mpegvideoenc
1561     nettle
1562     rangecoder
1563     rtpdec
1564     rtpenc_chain
1565     sinewin
1566     videodsp
1567     vp3dsp
1568 "
1569
1570 CMDLINE_SELECT="
1571     $ARCH_EXT_LIST
1572     $CONFIG_LIST
1573     $HAVE_LIST_CMDLINE
1574     $THREADS_LIST
1575     asm
1576     cross_compile
1577     debug
1578     extra_warnings
1579     logging
1580     lto
1581     optimizations
1582     stripping
1583 "
1584
1585 PATHS_LIST='
1586     bindir
1587     datadir
1588     incdir
1589     libdir
1590     mandir
1591     prefix
1592     shlibdir
1593 '
1594
1595 CMDLINE_SET="
1596     $PATHS_LIST
1597     ar
1598     arch
1599     as
1600     assert_level
1601     build_suffix
1602     cc
1603     cpu
1604     cross_prefix
1605     cxx
1606     dep_cc
1607     extra_version
1608     host_cc
1609     host_cflags
1610     host_ld
1611     host_ldflags
1612     host_libs
1613     host_os
1614     install
1615     ld
1616     logfile
1617     malloc_prefix
1618     nm
1619     optflags
1620     pkg_config
1621     progs_suffix
1622     random_seed
1623     samples
1624     strip
1625     sysinclude
1626     sysroot
1627     target_exec
1628     target_os
1629     target_path
1630     toolchain
1631     valgrind
1632     yasmexe
1633 "
1634
1635 CMDLINE_APPEND="
1636     extra_cflags
1637     extra_cxxflags
1638     host_cppflags
1639 "
1640
1641 # code dependency declarations
1642
1643 # architecture extensions
1644
1645 armv5te_deps="arm"
1646 armv6_deps="arm"
1647 armv6t2_deps="arm"
1648 neon_deps="arm"
1649 vfp_deps="arm"
1650 vfpv3_deps="vfp"
1651
1652 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1653
1654 mipsfpu_deps="mips"
1655 mips32r2_deps="mips"
1656 mipsdspr1_deps="mips"
1657 mipsdspr2_deps="mips"
1658
1659 altivec_deps="ppc"
1660 ppc4xx_deps="ppc"
1661
1662 vis_deps="sparc"
1663
1664 x86_64_suggest="fast_cmov i686"
1665
1666 amd3dnow_deps="mmx"
1667 amd3dnowext_deps="amd3dnow"
1668 mmx_deps="x86"
1669 mmxext_deps="mmx"
1670 sse_deps="mmxext"
1671 sse2_deps="sse"
1672 sse3_deps="sse2"
1673 ssse3_deps="sse3"
1674 sse4_deps="ssse3"
1675 sse42_deps="sse4"
1676 avx_deps="sse42"
1677 fma4_deps="avx"
1678
1679 mmx_external_deps="yasm"
1680 mmx_inline_deps="inline_asm"
1681 mmx_suggest="mmx_external mmx_inline"
1682
1683 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1684     eval dep=\$${ext}_deps
1685     eval ${ext}_external_deps='"${dep}_external"'
1686     eval ${ext}_inline_deps='"${dep}_inline"'
1687     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1688 done
1689
1690 aligned_stack_if_any="ppc x86"
1691 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1692 fast_clz_if_any="alpha avr32 mips ppc x86"
1693 fast_unaligned_if_any="ppc x86"
1694
1695 inline_asm_deps="!tms470"
1696 need_memalign="altivec neon sse"
1697
1698 symver_if_any="symver_asm_label symver_gnu_asm"
1699
1700 log2_deps="!msvcrt"
1701
1702 # subsystems
1703 dct_select="rdft"
1704 error_resilience_select="dsputil"
1705 frame_thread_encoder_deps="encoders threads"
1706 lpc_select="dsputil"
1707 mdct_select="fft"
1708 rdft_select="fft"
1709 mpegaudio_select="mpegaudiodsp"
1710 mpegaudiodsp_select="dct"
1711 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1712 mpegvideoenc_select="mpegvideo"
1713
1714 # decoders / encoders
1715 aac_decoder_select="mdct sinewin"
1716 aac_encoder_select="audio_frame_queue mdct sinewin"
1717 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1718 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1719 ac3_encoder_select="mdct ac3dsp dsputil"
1720 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1721 aic_decoder_select="dsputil golomb"
1722 alac_encoder_select="lpc"
1723 als_decoder_select="dsputil"
1724 amrnb_decoder_select="lsp"
1725 amrwb_decoder_select="lsp"
1726 amv_decoder_select="dsputil hpeldsp"
1727 amv_encoder_select="aandcttables"
1728 ape_decoder_select="dsputil"
1729 asv1_decoder_select="dsputil"
1730 asv1_encoder_select="dsputil"
1731 asv2_decoder_select="dsputil"
1732 asv2_encoder_select="dsputil"
1733 atrac1_decoder_select="mdct sinewin"
1734 atrac3_decoder_select="mdct"
1735 bink_decoder_select="dsputil hpeldsp"
1736 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1737 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1738 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1739 cllc_decoder_select="dsputil"
1740 comfortnoise_encoder_select="lpc"
1741 cook_decoder_select="dsputil mdct sinewin"
1742 cscd_decoder_select="lzo"
1743 cscd_decoder_suggest="zlib"
1744 dca_decoder_select="mdct"
1745 dirac_decoder_select="dsputil dwt golomb videodsp"
1746 dnxhd_decoder_select="dsputil"
1747 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1748 dvvideo_decoder_select="dsputil"
1749 dvvideo_encoder_select="dsputil"
1750 dxa_decoder_select="zlib"
1751 eac3_decoder_select="ac3_decoder"
1752 eac3_encoder_select="ac3_encoder"
1753 eamad_decoder_select="aandcttables dsputil mpegvideo"
1754 eatgq_decoder_select="aandcttables"
1755 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1756 exr_decoder_select="zlib"
1757 ffv1_decoder_select="dsputil golomb rangecoder"
1758 ffv1_encoder_select="dsputil rangecoder"
1759 ffvhuff_decoder_select="dsputil"
1760 ffvhuff_encoder_select="dsputil huffman"
1761 flac_decoder_select="golomb"
1762 flac_encoder_select="dsputil golomb lpc"
1763 flashsv_decoder_select="zlib"
1764 flashsv_encoder_select="zlib"
1765 flashsv2_encoder_select="zlib"
1766 flashsv2_decoder_select="zlib"
1767 flv_decoder_select="h263_decoder"
1768 flv_encoder_select="h263_encoder"
1769 fourxm_decoder_select="dsputil"
1770 fraps_decoder_select="dsputil huffman"
1771 g729_decoder_select="dsputil"
1772 h261_decoder_select="error_resilience mpegvideo"
1773 h261_encoder_select="aandcttables mpegvideoenc"
1774 h263_decoder_select="error_resilience h263_parser mpegvideo"
1775 h263_encoder_select="aandcttables mpegvideoenc"
1776 h263i_decoder_select="h263_decoder"
1777 h263p_encoder_select="h263_encoder"
1778 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1779 h264_decoder_suggest="error_resilience"
1780 huffyuv_decoder_select="dsputil"
1781 huffyuv_encoder_select="dsputil huffman"
1782 iac_decoder_select="dsputil fft mdct sinewin"
1783 imc_decoder_select="dsputil fft mdct sinewin"
1784 indeo3_decoder_select="hpeldsp"
1785 interplay_video_decoder_select="hpeldsp"
1786 jpegls_decoder_select="dsputil golomb hpeldsp"
1787 jpegls_encoder_select="golomb"
1788 jv_decoder_select="dsputil"
1789 lagarith_decoder_select="dsputil"
1790 ljpeg_encoder_select="aandcttables mpegvideoenc"
1791 loco_decoder_select="golomb"
1792 mdec_decoder_select="dsputil error_resilience mpegvideo"
1793 mimic_decoder_select="dsputil hpeldsp"
1794 mjpeg_decoder_select="dsputil hpeldsp"
1795 mjpegb_decoder_select="dsputil hpeldsp"
1796 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1797 mlp_decoder_select="dsputil mlp_parser"
1798 motionpixels_decoder_select="dsputil"
1799 mp1_decoder_select="mpegaudio"
1800 mp1float_decoder_select="mpegaudio"
1801 mp2_decoder_select="mpegaudio"
1802 mp2float_decoder_select="mpegaudio"
1803 mp3_decoder_select="mpegaudio"
1804 mp3adu_decoder_select="mpegaudio"
1805 mp3adufloat_decoder_select="mpegaudio"
1806 mp3float_decoder_select="mpegaudio"
1807 mp3on4_decoder_select="mpegaudio"
1808 mp3on4float_decoder_select="mpegaudio"
1809 mpc7_decoder_select="dsputil mpegaudiodsp"
1810 mpc8_decoder_select="dsputil mpegaudiodsp"
1811 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1812 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1813 mpeg1video_decoder_select="error_resilience mpegvideo"
1814 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1815 mpeg2video_decoder_select="error_resilience mpegvideo"
1816 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1817 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1818 mpeg4_encoder_select="h263_encoder"
1819 msmpeg4v1_decoder_select="h263_decoder"
1820 msmpeg4v2_decoder_select="h263_decoder"
1821 msmpeg4v2_encoder_select="h263_encoder"
1822 msmpeg4v3_decoder_select="h263_decoder"
1823 msmpeg4v3_encoder_select="h263_encoder"
1824 mss2_decoder_select="error_resilience vc1_decoder"
1825 mxpeg_decoder_select="dsputil hpeldsp"
1826 nellymoser_decoder_select="mdct sinewin"
1827 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1828 nuv_decoder_select="dsputil lzo"
1829 png_decoder_select="zlib"
1830 png_encoder_select="dsputil zlib"
1831 prores_decoder_select="dsputil"
1832 prores_encoder_select="dsputil"
1833 qcelp_decoder_select="lsp"
1834 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1835 ra_144_encoder_select="audio_frame_queue lpc"
1836 ralf_decoder_select="golomb"
1837 rtjpeg_decoder_select="dsputil"
1838 rv10_decoder_select="error_resilience h263_decoder"
1839 rv10_encoder_select="h263_encoder"
1840 rv20_decoder_select="error_resilience h263_decoder"
1841 rv20_encoder_select="h263_encoder"
1842 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1843 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1844 shorten_decoder_select="golomb"
1845 sipr_decoder_select="lsp"
1846 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1847 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1848 sonic_decoder_select="golomb"
1849 sonic_encoder_select="golomb"
1850 sonic_ls_encoder_select="golomb"
1851 sp5x_decoder_select="dsputil hpeldsp"
1852 svq1_decoder_select="hpeldsp"
1853 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1854 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1855 svq3_decoder_suggest="error_resilience zlib"
1856 tak_decoder_select="dsputil"
1857 theora_decoder_select="vp3_decoder"
1858 tiff_decoder_suggest="zlib"
1859 tiff_encoder_suggest="zlib"
1860 thp_decoder_select="dsputil hpeldsp"
1861 truehd_decoder_select="mlp_parser"
1862 truemotion2_decoder_select="dsputil"
1863 truespeech_decoder_select="dsputil"
1864 tscc_decoder_select="zlib"
1865 twinvq_decoder_select="mdct lsp sinewin"
1866 utvideo_decoder_select="dsputil"
1867 utvideo_encoder_select="dsputil huffman"
1868 vble_decoder_select="dsputil"
1869 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1870 vc1image_decoder_select="vc1_decoder"
1871 vorbis_decoder_select="mdct"
1872 vorbis_encoder_select="mdct"
1873 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1874 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1875 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1876 vp6a_decoder_select="vp6_decoder"
1877 vp6f_decoder_select="vp6_decoder"
1878 vp8_decoder_select="h264pred videodsp"
1879 wmapro_decoder_select="mdct sinewin"
1880 wmav1_decoder_select="mdct sinewin"
1881 wmav1_encoder_select="mdct sinewin"
1882 wmav2_decoder_select="mdct sinewin"
1883 wmav2_encoder_select="mdct sinewin"
1884 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1885 wmv1_decoder_select="h263_decoder"
1886 wmv1_encoder_select="h263_encoder"
1887 wmv2_decoder_select="h263_decoder videodsp"
1888 wmv2_encoder_select="h263_encoder"
1889 wmv3_decoder_select="vc1_decoder"
1890 wmv3image_decoder_select="wmv3_decoder"
1891 zerocodec_decoder_select="zlib"
1892 zlib_decoder_select="zlib"
1893 zlib_encoder_select="zlib"
1894 zmbv_decoder_select="zlib"
1895 zmbv_encoder_select="zlib"
1896
1897 # hardware accelerators
1898 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1899 dxva2_deps="dxva2api_h"
1900 vaapi_deps="va_va_h"
1901 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1902 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1903 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1904
1905 h263_vaapi_hwaccel_deps="vaapi"
1906 h263_vaapi_hwaccel_select="h263_decoder"
1907 h263_vdpau_hwaccel_deps="vdpau"
1908 h263_vdpau_hwaccel_select="h263_decoder"
1909 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1910 h264_dxva2_hwaccel_deps="dxva2"
1911 h264_dxva2_hwaccel_select="h264_decoder"
1912 h264_vaapi_hwaccel_deps="vaapi"
1913 h264_vaapi_hwaccel_select="h264_decoder"
1914 h264_vda_decoder_deps="vda"
1915 h264_vda_decoder_select="h264_decoder"
1916 h264_vda_hwaccel_deps="vda"
1917 h264_vda_hwaccel_select="h264_decoder"
1918 h264_vdpau_decoder_deps="vdpau"
1919 h264_vdpau_decoder_select="h264_decoder"
1920 h264_vdpau_hwaccel_deps="vdpau"
1921 h264_vdpau_hwaccel_select="h264_decoder"
1922 mpeg_vdpau_decoder_deps="vdpau"
1923 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1924 mpeg1_vdpau_decoder_deps="vdpau"
1925 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1926 mpeg1_vdpau_hwaccel_deps="vdpau"
1927 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1928 mpeg2_crystalhd_decoder_select="crystalhd"
1929 mpeg2_dxva2_hwaccel_deps="dxva2"
1930 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1931 mpeg2_vaapi_hwaccel_deps="vaapi"
1932 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1933 mpeg2_vdpau_hwaccel_deps="vdpau"
1934 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1935 mpeg4_crystalhd_decoder_select="crystalhd"
1936 mpeg4_vaapi_hwaccel_deps="vaapi"
1937 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1938 mpeg4_vdpau_decoder_deps="vdpau"
1939 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1940 mpeg4_vdpau_hwaccel_deps="vdpau"
1941 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1942 msmpeg4_crystalhd_decoder_select="crystalhd"
1943 vc1_crystalhd_decoder_select="crystalhd"
1944 vc1_dxva2_hwaccel_deps="dxva2"
1945 vc1_dxva2_hwaccel_select="vc1_decoder"
1946 vc1_vaapi_hwaccel_deps="vaapi"
1947 vc1_vaapi_hwaccel_select="vc1_decoder"
1948 vc1_vdpau_decoder_deps="vdpau"
1949 vc1_vdpau_decoder_select="vc1_decoder"
1950 vc1_vdpau_hwaccel_deps="vdpau"
1951 vc1_vdpau_hwaccel_select="vc1_decoder"
1952 wmv3_crystalhd_decoder_select="crystalhd"
1953 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1954 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1955 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1956 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1957
1958 # parsers
1959 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1960 mpeg4video_parser_select="error_resilience mpegvideo"
1961 mpegvideo_parser_select="error_resilience mpegvideo"
1962 vc1_parser_select="mpegvideo"
1963
1964 # external libraries
1965 libaacplus_encoder_deps="libaacplus"
1966 libcelt_decoder_deps="libcelt"
1967 libfaac_encoder_deps="libfaac"
1968 libfaac_encoder_select="audio_frame_queue"
1969 libfdk_aac_encoder_deps="libfdk_aac"
1970 libfdk_aac_encoder_select="audio_frame_queue"
1971 libgsm_decoder_deps="libgsm"
1972 libgsm_encoder_deps="libgsm"
1973 libgsm_ms_decoder_deps="libgsm"
1974 libgsm_ms_encoder_deps="libgsm"
1975 libilbc_decoder_deps="libilbc"
1976 libilbc_encoder_deps="libilbc"
1977 libmodplug_demuxer_deps="libmodplug"
1978 libmp3lame_encoder_deps="libmp3lame"
1979 libmp3lame_encoder_select="audio_frame_queue"
1980 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1981 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1982 libopencore_amrnb_encoder_select="audio_frame_queue"
1983 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1984 libopenjpeg_decoder_deps="libopenjpeg"
1985 libopenjpeg_encoder_deps="libopenjpeg"
1986 libopus_decoder_deps="libopus"
1987 libopus_encoder_deps="libopus"
1988 libopus_encoder_select="audio_frame_queue"
1989 libquvi_demuxer_deps="libquvi"
1990 libschroedinger_decoder_deps="libschroedinger"
1991 libschroedinger_encoder_deps="libschroedinger"
1992 libshine_encoder_deps="libshine"
1993 libshine_encoder_select="audio_frame_queue"
1994 libspeex_decoder_deps="libspeex"
1995 libspeex_encoder_deps="libspeex"
1996 libspeex_encoder_select="audio_frame_queue"
1997 libstagefright_h264_decoder_deps="libstagefright_h264"
1998 libtheora_encoder_deps="libtheora"
1999 libtwolame_encoder_deps="libtwolame"
2000 libvo_aacenc_encoder_deps="libvo_aacenc"
2001 libvo_aacenc_encoder_select="audio_frame_queue"
2002 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2003 libvorbis_decoder_deps="libvorbis"
2004 libvorbis_encoder_deps="libvorbis"
2005 libvorbis_encoder_select="audio_frame_queue"
2006 libvpx_vp8_decoder_deps="libvpx"
2007 libvpx_vp8_encoder_deps="libvpx"
2008 libvpx_vp9_decoder_deps="libvpx"
2009 libvpx_vp9_encoder_deps="libvpx"
2010 libx264_encoder_deps="libx264"
2011 libx264rgb_encoder_deps="libx264"
2012 libxavs_encoder_deps="libxavs"
2013 libxvid_encoder_deps="libxvid"
2014 libutvideo_decoder_deps="libutvideo"
2015 libutvideo_encoder_deps="libutvideo"
2016
2017 # demuxers / muxers
2018 ac3_demuxer_select="ac3_parser"
2019 asf_stream_muxer_select="asf_muxer"
2020 avisynth_demuxer_deps="avisynth"
2021 dirac_demuxer_select="dirac_parser"
2022 dts_demuxer_select="dca_parser"
2023 dtshd_demuxer_select="dca_parser"
2024 eac3_demuxer_select="ac3_parser"
2025 f4v_muxer_select="mov_muxer"
2026 flac_demuxer_select="flac_parser"
2027 ipod_muxer_select="mov_muxer"
2028 ismv_muxer_select="mov_muxer"
2029 libnut_demuxer_deps="libnut"
2030 libnut_muxer_deps="libnut"
2031 matroska_audio_muxer_select="matroska_muxer"
2032 matroska_demuxer_suggest="bzlib lzo zlib"
2033 mov_demuxer_suggest="zlib"
2034 mov_muxer_select="rtpenc_chain"
2035 mp3_demuxer_select="mpegaudio_parser"
2036 mp4_muxer_select="mov_muxer"
2037 mpegts_muxer_select="adts_muxer latm_muxer"
2038 mpegtsraw_demuxer_select="mpegts_demuxer"
2039 mxf_d10_muxer_select="mxf_muxer"
2040 ogg_demuxer_select="golomb"
2041 psp_muxer_select="mov_muxer"
2042 rtp_demuxer_select="sdp_demuxer"
2043 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2044 rtsp_demuxer_select="http_protocol rtpdec"
2045 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2046 sap_demuxer_select="sdp_demuxer"
2047 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2048 sdp_demuxer_select="rtpdec"
2049 smoothstreaming_muxer_select="ismv_muxer"
2050 spdif_muxer_select="aac_parser"
2051 tak_demuxer_select="tak_parser"
2052 tg2_muxer_select="mov_muxer"
2053 tgp_muxer_select="mov_muxer"
2054 vobsub_demuxer_select="mpegps_demuxer"
2055 w64_demuxer_deps="wav_demuxer"
2056 w64_muxer_deps="wav_muxer"
2057
2058 # indevs / outdevs
2059 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2060 alsa_outdev_deps="alsa_asoundlib_h"
2061 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2062 caca_outdev_deps="libcaca"
2063 dshow_indev_deps="IBaseFilter"
2064 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2065 dv1394_indev_deps="dv1394 dv_demuxer"
2066 fbdev_indev_deps="linux_fb_h"
2067 iec61883_indev_deps="libiec61883"
2068 jack_indev_deps="jack_jack_h sem_timedwait"
2069 lavfi_indev_deps="avfilter"
2070 libcdio_indev_deps="libcdio"
2071 libdc1394_indev_deps="libdc1394"
2072 libv4l2_indev_deps="libv4l2"
2073 openal_indev_deps="openal"
2074 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2075 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2076 pulse_indev_deps="libpulse"
2077 sdl_outdev_deps="sdl"
2078 sndio_indev_deps="sndio_h"
2079 sndio_outdev_deps="sndio_h"
2080 v4l_indev_deps="linux_videodev_h"
2081 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2082 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2083 vfwcap_indev_extralibs="-lavicap32"
2084 x11grab_indev_deps="x11grab"
2085
2086 # protocols
2087 bluray_protocol_deps="libbluray"
2088 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2089 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2090 ffrtmpcrypt_protocol_select="tcp_protocol"
2091 ffrtmphttp_protocol_deps="!librtmp_protocol"
2092 ffrtmphttp_protocol_select="http_protocol"
2093 ftp_protocol_select="tcp_protocol"
2094 gopher_protocol_select="network"
2095 httpproxy_protocol_select="tcp_protocol"
2096 http_protocol_select="tcp_protocol"
2097 https_protocol_select="tls_protocol"
2098 librtmp_protocol_deps="librtmp"
2099 librtmpe_protocol_deps="librtmp"
2100 librtmps_protocol_deps="librtmp"
2101 librtmpt_protocol_deps="librtmp"
2102 librtmpte_protocol_deps="librtmp"
2103 mmsh_protocol_select="http_protocol"
2104 mmst_protocol_select="network"
2105 rtmp_protocol_deps="!librtmp_protocol"
2106 rtmp_protocol_select="tcp_protocol"
2107 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2108 rtmps_protocol_deps="!librtmp_protocol"
2109 rtmps_protocol_select="tls_protocol"
2110 rtmpt_protocol_select="ffrtmphttp_protocol"
2111 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2112 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2113 rtp_protocol_select="udp_protocol"
2114 sctp_protocol_deps="struct_sctp_event_subscribe"
2115 sctp_protocol_select="network"
2116 srtp_protocol_select="rtp_protocol"
2117 tcp_protocol_select="network"
2118 tls_protocol_deps_any="openssl gnutls"
2119 tls_protocol_select="tcp_protocol"
2120 udp_protocol_select="network"
2121
2122 # filters
2123 aconvert_filter_deps="swresample"
2124 amovie_filter_deps="avcodec avformat"
2125 aresample_filter_deps="swresample"
2126 ass_filter_deps="libass"
2127 asyncts_filter_deps="avresample"
2128 atempo_filter_deps="avcodec rdft"
2129 azmq_filter_deps="libzmq"
2130 blackframe_filter_deps="gpl"
2131 boxblur_filter_deps="gpl"
2132 colormatrix_filter_deps="gpl"
2133 cropdetect_filter_deps="gpl"
2134 dctdnoiz_filter_deps="avcodec"
2135 delogo_filter_deps="gpl"
2136 deshake_filter_deps="avcodec"
2137 deshake_filter_select="dsputil"
2138 drawtext_filter_deps="libfreetype"
2139 ebur128_filter_deps="gpl"
2140 flite_filter_deps="libflite"
2141 frei0r_filter_deps="frei0r dlopen"
2142 frei0r_filter_extralibs='$ldl'
2143 frei0r_src_filter_deps="frei0r dlopen"
2144 frei0r_src_filter_extralibs='$ldl'
2145 geq_filter_deps="gpl"
2146 histeq_filter_deps="gpl"
2147 hqdn3d_filter_deps="gpl"
2148 hue_filter_deps="gpl"
2149 interlace_filter_deps="gpl"
2150 kerndeint_filter_deps="gpl"
2151 movie_filter_deps="avcodec avformat"
2152 mp_filter_deps="gpl avcodec swscale inline_asm"
2153 mpdecimate_filter_deps="gpl avcodec"
2154 mptestsrc_filter_deps="gpl"
2155 negate_filter_deps="lut_filter"
2156 noise_filter_deps="gpl"
2157 resample_filter_deps="avresample"
2158 ocv_filter_deps="libopencv"
2159 owdenoise_filter_deps="gpl"
2160 pan_filter_deps="swresample"
2161 pp_filter_deps="gpl postproc"
2162 removelogo_filter_deps="avcodec avformat swscale"
2163 scale_filter_deps="swscale"
2164 smartblur_filter_deps="gpl swscale"
2165 showspectrum_filter_deps="avcodec rdft"
2166 stereo3d_filter_deps="gpl"
2167 subtitles_filter_deps="avformat avcodec libass"
2168 super2xsai_filter_deps="gpl"
2169 tinterlace_filter_deps="gpl"
2170 vidstabdetect_filter_deps="libvidstab"
2171 vidstabtransform_filter_deps="libvidstab"
2172 yadif_filter_deps="gpl"
2173 pixfmts_super2xsai_test_deps="super2xsai_filter"
2174 tinterlace_merge_test_deps="tinterlace_filter"
2175 tinterlace_pad_test_deps="tinterlace_filter"
2176 zmq_filter_deps="libzmq"
2177
2178 # libraries
2179 avcodec_deps="avutil"
2180 avdevice_deps="avutil avcodec avformat"
2181 avfilter_deps="avutil"
2182 avformat_deps="avutil avcodec"
2183 avresample_deps="avutil"
2184 postproc_deps="avutil gpl"
2185 swscale_deps="avutil"
2186
2187 # programs
2188 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2189 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2190                null_filter
2191                setpts_filter trim_filter"
2192 ffplay_deps="avcodec avformat swscale swresample sdl"
2193 ffplay_select="rdft crop_filter"
2194 ffprobe_deps="avcodec avformat"
2195 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2196 ffserver_extralibs='$ldl'
2197
2198 # documentation
2199 podpages_deps="perl"
2200 manpages_deps="perl pod2man"
2201 htmlpages_deps="texi2html"
2202 txtpages_deps="makeinfo"
2203 doc_deps_any="manpages htmlpages podpages txtpages"
2204
2205 # default parameters
2206
2207 logfile="config.log"
2208
2209 # installation paths
2210 prefix_default="/usr/local"
2211 bindir_default='${prefix}/bin'
2212 datadir_default='${prefix}/share/ffmpeg'
2213 incdir_default='${prefix}/include'
2214 libdir_default='${prefix}/lib'
2215 mandir_default='${prefix}/share/man'
2216 shlibdir_default="$libdir_default"
2217
2218 # toolchain
2219 ar_default="ar"
2220 cc_default="gcc"
2221 cxx_default="g++"
2222 host_cc_default="gcc"
2223 cp_f="cp -f"
2224 install="install"
2225 ln_s="ln -s -f"
2226 nm_default="nm -g"
2227 objformat="elf"
2228 pkg_config_default=pkg-config
2229 ranlib="ranlib"
2230 strip_default="strip"
2231 yasmexe_default="yasm"
2232
2233 nogas=":"
2234
2235 # machine
2236 arch_default=$(uname -m)
2237 cpu="generic"
2238
2239 # OS
2240 target_os_default=$(tolower $(uname -s))
2241 host_os=$target_os_default
2242
2243 # configurable options
2244 enable $PROGRAM_LIST
2245 enable $DOCUMENT_LIST
2246 enable $(filter_out avresample $LIBRARY_LIST)
2247 enable stripping
2248
2249 enable asm
2250 enable debug
2251 enable doc
2252 enable optimizations
2253 enable runtime_cpudetect
2254 enable safe_bitstream_reader
2255 enable static
2256 enable swscale_alpha
2257
2258 # Enable hwaccels by default.
2259 enable dxva2 vaapi vdpau
2260
2261 # build settings
2262 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2263 FFSERVERLDFLAGS=-Wl,-E
2264 LIBPREF="lib"
2265 LIBSUF=".a"
2266 FULLNAME='$(NAME)$(BUILDSUF)'
2267 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2268 SLIBPREF="lib"
2269 SLIBSUF=".so"
2270 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2271 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2272 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2273 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2274 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2275 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2276
2277 asflags_filter=echo
2278 cflags_filter=echo
2279 ldflags_filter=echo
2280
2281 AS_C='-c'
2282 AS_O='-o $@'
2283 CC_C='-c'
2284 CC_E='-E -o $@'
2285 CC_O='-o $@'
2286 CXX_C='-c'
2287 CXX_O='-o $@'
2288 LD_O='-o $@'
2289 LD_LIB='-l%'
2290 LD_PATH='-L'
2291 HOSTCC_C='-c'
2292 HOSTCC_O='-o $@'
2293 HOSTLD_O='-o $@'
2294
2295 host_cflags='-O3 -g'
2296 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2297 host_libs='-lm'
2298 host_cflags_filter=echo
2299 host_ldflags_filter=echo
2300
2301 target_path='$(CURDIR)'
2302
2303 # since the object filename is not given with the -MM flag, the compiler
2304 # is only able to print the basename, and we must add the path ourselves
2305 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2306 DEPFLAGS='-MM'
2307
2308 # find source path
2309 if test -f configure; then
2310     source_path=.
2311 else
2312     source_path=$(cd $(dirname "$0"); pwd)
2313     echo "$source_path" | grep -q '[[:blank:]]' &&
2314         die "Out of tree builds are impossible with whitespace in source path."
2315     test -e "$source_path/config.h" &&
2316         die "Out of tree builds are impossible with config.h in source dir."
2317 fi
2318
2319 for v in "$@"; do
2320     r=${v#*=}
2321     l=${v%"$r"}
2322     r=$(sh_quote "$r")
2323     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2324 done
2325
2326 find_things(){
2327     thing=$1
2328     pattern=$2
2329     file=$source_path/$3
2330     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2331 }
2332
2333 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2334 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2335 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2336 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2337 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2338 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2339 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2340 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2341 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2342 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2343 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2344
2345 ALL_COMPONENTS="
2346     $BSF_LIST
2347     $DECODER_LIST
2348     $DEMUXER_LIST
2349     $ENCODER_LIST
2350     $FILTER_LIST
2351     $HWACCEL_LIST
2352     $INDEV_LIST
2353     $MUXER_LIST
2354     $OUTDEV_LIST
2355     $PARSER_LIST
2356     $PROTOCOL_LIST
2357 "
2358
2359 for n in $COMPONENT_LIST; do
2360     v=$(toupper ${n%s})_LIST
2361     eval enable \$$v
2362     eval ${n}_if_any="\$$v"
2363 done
2364
2365 enable $ARCH_EXT_LIST
2366
2367 die_unknown(){
2368     echo "Unknown option \"$1\"."
2369     echo "See $0 --help for available options."
2370     exit 1
2371 }
2372
2373 print_3_columns() {
2374     cat | tr ' ' '\n' | sort | pr -r -3 -t
2375 }
2376
2377 show_list() {
2378     suffix=_$1
2379     shift
2380     echo $* | sed s/$suffix//g | print_3_columns
2381     exit 0
2382 }
2383
2384 rand_list(){
2385     IFS=', '
2386     set -- $*
2387     unset IFS
2388     for thing; do
2389         comp=${thing%:*}
2390         prob=${thing#$comp}
2391         prob=${prob#:}
2392         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2393         echo "prob ${prob:-0.5}"
2394         printf '%s\n' $comp
2395     done
2396 }
2397
2398 do_random(){
2399     action=$1
2400     shift
2401     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2402     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2403 }
2404
2405 for opt do
2406     optval="${opt#*=}"
2407     case "$opt" in
2408         --extra-ldflags=*)
2409             add_ldflags $optval
2410         ;;
2411         --extra-libs=*)
2412             add_extralibs $optval
2413         ;;
2414         --disable-devices)
2415             disable $INDEV_LIST $OUTDEV_LIST
2416         ;;
2417         --enable-debug=*)
2418             debuglevel="$optval"
2419         ;;
2420         --disable-programs)
2421             disable $PROGRAM_LIST
2422         ;;
2423         --disable-everything)
2424             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2425         ;;
2426         --disable-all)
2427             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2428             disable $LIBRARY_LIST $PROGRAM_LIST doc
2429         ;;
2430         --enable-random|--disable-random)
2431             action=${opt%%-random}
2432             do_random ${action#--} $COMPONENT_LIST
2433         ;;
2434         --enable-random=*|--disable-random=*)
2435             action=${opt%%-random=*}
2436             do_random ${action#--} $optval
2437         ;;
2438         --enable-*=*|--disable-*=*)
2439             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2440             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2441             eval list=\$$(toupper $thing)_LIST
2442             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2443             list=$(filter "$name" $list)
2444             [ "$list" = "" ] && warn "Option $opt did not match anything"
2445             $action $list
2446         ;;
2447         --enable-?*|--disable-?*)
2448             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2449             if is_in $option $COMPONENT_LIST; then
2450                 test $action = disable && action=unset
2451                 eval $action \$$(toupper ${option%s})_LIST
2452             elif is_in $option $CMDLINE_SELECT; then
2453                 $action $option
2454             else
2455                 die_unknown $opt
2456             fi
2457         ;;
2458         --list-*)
2459             NAME="${opt#--list-}"
2460             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2461             NAME=${NAME%s}
2462             eval show_list $NAME \$$(toupper $NAME)_LIST
2463         ;;
2464         --help|-h) show_help
2465         ;;
2466         --fatal-warnings) enable fatal_warnings
2467         ;;
2468         *)
2469             optname="${opt%%=*}"
2470             optname="${optname#--}"
2471             optname=$(echo "$optname" | sed 's/-/_/g')
2472             if is_in $optname $CMDLINE_SET; then
2473                 eval $optname='$optval'
2474             elif is_in $optname $CMDLINE_APPEND; then
2475                 append $optname "$optval"
2476             else
2477                 die_unknown $opt
2478             fi
2479         ;;
2480     esac
2481 done
2482
2483 disabled logging && logfile=/dev/null
2484
2485 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2486 set >> $logfile
2487
2488 test -n "$cross_prefix" && enable cross_compile
2489
2490 if enabled cross_compile; then
2491     test -n "$arch" && test -n "$target_os" ||
2492         die "Must specify target arch and OS when cross-compiling"
2493 fi
2494
2495 ar_default="${cross_prefix}${ar_default}"
2496 cc_default="${cross_prefix}${cc_default}"
2497 cxx_default="${cross_prefix}${cxx_default}"
2498 nm_default="${cross_prefix}${nm_default}"
2499 pkg_config_default="${cross_prefix}${pkg_config_default}"
2500 ranlib="${cross_prefix}${ranlib}"
2501 strip_default="${cross_prefix}${strip_default}"
2502
2503 sysinclude_default="${sysroot}/usr/include"
2504
2505 test -n "$valgrind" && toolchain="valgrind-memcheck"
2506
2507 case "$toolchain" in
2508     clang-asan)
2509         cc_default="clang"
2510         add_cflags  -fsanitize=address
2511         add_ldflags -fsanitize=address
2512     ;;
2513     clang-tsan)
2514         cc_default="clang"
2515         add_cflags  -fsanitize=thread -pie
2516         add_ldflags -fsanitize=thread -pie
2517     ;;
2518     valgrind-massif)
2519         target_exec_default=${valgrind:-"valgrind"}
2520         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz"
2521     ;;
2522     valgrind-memcheck)
2523         target_exec_default=${valgrind:-"valgrind"}
2524         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2525     ;;
2526     msvc)
2527         cc_default="c99wrap cl"
2528         ld_default="c99wrap link"
2529         nm_default="dumpbin -symbols"
2530         ar_default="lib"
2531         target_os_default="win32"
2532     ;;
2533     gcov)
2534         add_cflags  -fprofile-arcs -ftest-coverage
2535         add_ldflags -fprofile-arcs -ftest-coverage
2536     ;;
2537     ?*)
2538         die "Unknown toolchain $toolchain"
2539     ;;
2540 esac
2541
2542 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2543 enabled cross_compile || host_cc_default=$cc
2544 set_default host_cc
2545
2546 if ! $pkg_config --version >/dev/null 2>&1; then
2547     warn "$pkg_config not found, library detection may fail."
2548     pkg_config=false
2549 fi
2550
2551 exesuf() {
2552     case $1 in
2553         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2554     esac
2555 }
2556
2557 EXESUF=$(exesuf $target_os)
2558 HOSTEXESUF=$(exesuf $host_os)
2559
2560 # set temporary file name
2561 : ${TMPDIR:=$TEMPDIR}
2562 : ${TMPDIR:=$TMP}
2563 : ${TMPDIR:=/tmp}
2564
2565 if ! check_cmd mktemp -u XXXXXX; then
2566     # simple replacement for missing mktemp
2567     # NOT SAFE FOR GENERAL USE
2568     mktemp(){
2569         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2570     }
2571 fi
2572
2573 tmpfile(){
2574     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2575         (set -C; exec > $tmp) 2>/dev/null ||
2576         die "Unable to create temporary file in $TMPDIR."
2577     append TMPFILES $tmp
2578     eval $1=$tmp
2579 }
2580
2581 trap 'rm -f -- $TMPFILES' EXIT
2582
2583 tmpfile TMPASM .asm
2584 tmpfile TMPC   .c
2585 tmpfile TMPCPP .cpp
2586 tmpfile TMPE   $EXESUF
2587 tmpfile TMPH   .h
2588 tmpfile TMPO   .o
2589 tmpfile TMPS   .S
2590 tmpfile TMPSH  .sh
2591 tmpfile TMPV   .ver
2592
2593 unset -f mktemp
2594
2595 chmod +x $TMPE
2596
2597 # make sure we can execute files in $TMPDIR
2598 cat > $TMPSH 2>> $logfile <<EOF
2599 #! /bin/sh
2600 EOF
2601 chmod +x $TMPSH >> $logfile 2>&1
2602 if ! $TMPSH >> $logfile 2>&1; then
2603     cat <<EOF
2604 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2605 variable to another directory and make sure that it is not mounted noexec.
2606 EOF
2607     die "Sanity test failed."
2608 fi
2609
2610 ccc_flags(){
2611     for flag; do
2612         case $flag in
2613             -std=c99)           echo -c99                       ;;
2614             -mcpu=*)            echo -arch ${flag#*=}           ;;
2615             -mieee)             echo -ieee                      ;;
2616             -O*|-fast)          echo $flag                      ;;
2617             -fno-math-errno)    echo -assume nomath_errno       ;;
2618             -g)                 echo -g3                        ;;
2619             -Wall)              echo -msg_enable level2         ;;
2620             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2621             -Wl,*)              echo $flag                      ;;
2622             -f*|-W*)                                            ;;
2623             *)                  echo $flag                      ;;
2624         esac
2625    done
2626 }
2627
2628 msvc_flags(){
2629     for flag; do
2630         case $flag in
2631             -fomit-frame-pointer) echo -Oy ;;
2632             -g)                   echo -Z7 ;;
2633             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2634                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2635                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2636                                        -wd4554 \
2637                                        -wd4996 -wd4273 ;;
2638             -std=c99)             ;;
2639             -fno-math-errno)      ;;
2640             -fno-common)          ;;
2641             -fno-signed-zeros)    ;;
2642             -fPIC)                ;;
2643             -lz)                  echo zlib.lib ;;
2644             -lavifil32)           echo vfw32.lib ;;
2645             -lavicap32)           echo vfw32.lib user32.lib ;;
2646             -l*)                  echo ${flag#-l}.lib ;;
2647             *)                    echo $flag ;;
2648         esac
2649     done
2650 }
2651
2652 pgi_flags(){
2653     for flag; do
2654         case $flag in
2655             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2656             -fomit-frame-pointer) echo -Mnoframe ;;
2657             -g)                   echo -gopt ;;
2658             *)                    echo $flag ;;
2659         esac
2660     done
2661 }
2662
2663 suncc_flags(){
2664     for flag; do
2665         case $flag in
2666             -march=*|-mcpu=*)
2667                 case "${flag#*=}" in
2668                     native)                   echo -xtarget=native       ;;
2669                     v9|niagara)               echo -xarch=sparc          ;;
2670                     ultrasparc)               echo -xarch=sparcvis       ;;
2671                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2672                     i586|pentium)             echo -xchip=pentium        ;;
2673                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2674                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2675                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2676                     pentium4*)          echo -xtarget=pentium4           ;;
2677                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2678                     *-sse3)             echo -xarch=sse3                 ;;
2679                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2680                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2681                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2682                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2683                     bdver*)                   echo -xarch=avx            ;;
2684                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2685                     k8|opteron|athlon64|athlon-fx)
2686                                               echo -xarch=sse2a          ;;
2687                     athlon*)                  echo -xarch=pentium_proa   ;;
2688                 esac
2689                 ;;
2690             -std=c99)             echo -xc99              ;;
2691             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2692             -fPIC)                echo -KPIC -xcode=pic32 ;;
2693             -W*,*)                echo $flag              ;;
2694             -f*-*|-W*|-mimpure-text)                      ;;
2695             -shared)              echo -G                 ;;
2696             *)                    echo $flag              ;;
2697         esac
2698     done
2699 }
2700
2701 tms470_flags(){
2702     for flag; do
2703         case $flag in
2704             -march=*|-mcpu=*)
2705                 case "${flag#*=}" in
2706                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2707                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2708                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2709                     armv6*|arm11*)          echo -mv=6   ;;
2710                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2711                                             echo -mv=5e  ;;
2712                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2713                 esac
2714                 ;;
2715             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2716             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2717             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2718             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2719             -msoft-float)   echo --float_support=vfplib       ;;
2720             -O[0-3]|-mf=*)  echo $flag                        ;;
2721             -g)             echo -g -mn                       ;;
2722             -pds=*)         echo $flag                        ;;
2723             -D*|-I*)        echo $flag                        ;;
2724             --gcc|--abi=*)  echo $flag                        ;;
2725             -me)            echo $flag                        ;;
2726         esac
2727     done
2728 }
2729
2730 probe_cc(){
2731     pfx=$1
2732     _cc=$2
2733
2734     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2735     unset _ld_o _ldflags _ld_lib _ld_path
2736     unset _depflags _DEPCMD _DEPFLAGS
2737     _flags_filter=echo
2738
2739     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2740         _type=llvm_gcc
2741         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2742         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2743         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2744         _cflags_speed='-O3'
2745         _cflags_size='-Os'
2746     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2747         _type=gcc
2748         gcc_version=$($_cc --version | head -n1)
2749         gcc_basever=$($_cc -dumpversion)
2750         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2751         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2752         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2753         if ! $_cc -dumpversion | grep -q '^2\.'; then
2754             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2755         fi
2756         _cflags_speed='-O3'
2757         _cflags_size='-Os'
2758     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2759         _type=icc
2760         _ident=$($_cc --version | head -n1)
2761         _depflags='-MMD'
2762         _cflags_speed='-O3'
2763         _cflags_size='-Os'
2764         _cflags_noopt='-O1'
2765     elif $_cc -v 2>&1 | grep -q xlc; then
2766         _type=xlc
2767         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2768         _cflags_speed='-O5'
2769         _cflags_size='-O5 -qcompact'
2770     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2771         _type=ccc
2772         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2773         _DEPFLAGS='-M'
2774         _cflags_speed='-fast'
2775         _cflags_size='-O1'
2776         _flags_filter=ccc_flags
2777     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2778         test -d "$sysroot" || die "No valid sysroot specified."
2779         _type=armcc
2780         _ident=$($_cc --vsn | head -n1)
2781         armcc_conf="$PWD/armcc.conf"
2782         $_cc --arm_linux_configure                 \
2783              --arm_linux_config_file="$armcc_conf" \
2784              --configure_sysroot="$sysroot"        \
2785              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2786              die "Error creating armcc configuration file."
2787         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2788         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2789         as_default="${cross_prefix}gcc"
2790         _depflags='-MMD'
2791         _cflags_speed='-O3'
2792         _cflags_size='-Os'
2793     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2794         _type=tms470
2795         _ident=$($_cc -version | head -n1 | tr -s ' ')
2796         _flags='--gcc --abi=eabi -me'
2797         _cc_e='-ppl -fe=$@'
2798         _cc_o='-fe=$@'
2799         _depflags='-ppa -ppd=$(@:.o=.d)'
2800         _cflags_speed='-O3 -mf=5'
2801         _cflags_size='-O3 -mf=2'
2802         _flags_filter=tms470_flags
2803     elif $_cc -v 2>&1 | grep -q clang; then
2804         _type=clang
2805         _ident=$($_cc --version | head -n1)
2806         _depflags='-MMD'
2807         _cflags_speed='-O3'
2808         _cflags_size='-Os'
2809     elif $_cc -V 2>&1 | grep -q Sun; then
2810         _type=suncc
2811         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2812         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2813         _DEPFLAGS='-xM1 -xc99'
2814         _ldflags='-std=c99'
2815         _cflags_speed='-O5'
2816         _cflags_size='-O5 -xspace'
2817         _flags_filter=suncc_flags
2818     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2819         _type=pathscale
2820         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2821         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2822         _cflags_speed='-O2'
2823         _cflags_size='-Os'
2824         _flags_filter='filter_out -Wdisabled-optimization'
2825     elif $_cc -v 2>&1 | grep -q Open64; then
2826         _type=open64
2827         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2828         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2829         _cflags_speed='-O2'
2830         _cflags_size='-Os'
2831         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2832     elif $_cc -V 2>&1 | grep -q Portland; then
2833         _type=pgi
2834         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2835         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2836         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2837         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2838         _cflags_noopt="-O"
2839         _flags_filter=pgi_flags
2840     elif $_cc 2>&1 | grep -q Microsoft; then
2841         _type=msvc
2842         _ident=$($cc 2>&1 | head -n1)
2843         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2844         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2845         _cflags_speed="-O2"
2846         _cflags_size="-O1"
2847         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2848         if $_cc 2>&1 | grep -q Linker; then
2849             _ld_o='-out $@'
2850         else
2851             _ld_o='-Fe$@'
2852         fi
2853         _cc_o='-Fo $@'
2854         _cc_e='-P -Fi $@'
2855         _flags_filter=msvc_flags
2856         _ld_lib='lib%.a'
2857         _ld_path='-libpath:'
2858         _flags='-nologo'
2859         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2860         if [ $pfx = hostcc ]; then
2861             append _cflags -Dsnprintf=_snprintf
2862         fi
2863         disable stripping
2864     fi
2865
2866     eval ${pfx}_type=\$_type
2867     eval ${pfx}_ident=\$_ident
2868 }
2869
2870 set_ccvars(){
2871     eval ${1}_C=\${_cc_c-\${${1}_C}}
2872     eval ${1}_E=\${_cc_e-\${${1}_E}}
2873     eval ${1}_O=\${_cc_o-\${${1}_O}}
2874
2875     if [ -n "$_depflags" ]; then
2876         eval ${1}_DEPFLAGS=\$_depflags
2877     else
2878         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2879         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2880         eval DEP${1}FLAGS=\$_flags
2881     fi
2882 }
2883
2884 probe_cc cc "$cc"
2885 cflags_filter=$_flags_filter
2886 cflags_speed=$_cflags_speed
2887 cflags_size=$_cflags_size
2888 cflags_noopt=$_cflags_noopt
2889 add_cflags $_flags $_cflags
2890 cc_ldflags=$_ldflags
2891 set_ccvars CC
2892
2893 probe_cc hostcc "$host_cc"
2894 host_cflags_filter=$_flags_filter
2895 add_host_cflags  $_flags $_cflags
2896 set_ccvars HOSTCC
2897
2898 test -n "$cc_type" && enable $cc_type ||
2899     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2900
2901 : ${as_default:=$cc}
2902 : ${dep_cc_default:=$cc}
2903 : ${ld_default:=$cc}
2904 : ${host_ld_default:=$host_cc}
2905 set_default ar as dep_cc ld host_ld
2906
2907 probe_cc as "$as"
2908 asflags_filter=$_flags_filter
2909 add_asflags $_flags $_cflags
2910 set_ccvars AS
2911
2912 probe_cc ld "$ld"
2913 ldflags_filter=$_flags_filter
2914 add_ldflags $_flags $_ldflags
2915 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2916 LD_O=${_ld_o-$LD_O}
2917 LD_LIB=${_ld_lib-$LD_LIB}
2918 LD_PATH=${_ld_path-$LD_PATH}
2919
2920 probe_cc hostld "$host_ld"
2921 host_ldflags_filter=$_flags_filter
2922 add_host_ldflags $_flags $_ldflags
2923 HOSTLD_O=${_ld_o-$HOSTLD_O}
2924
2925 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2926     probe_cc depcc "$dep_cc"
2927     CCDEP=${_DEPCMD:-$DEPCMD}
2928     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2929     DEPCCFLAGS=$_flags
2930 fi
2931
2932 if $ar 2>&1 | grep -q Microsoft; then
2933     arflags="-nologo"
2934     ar_o='-out:$@'
2935 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2936     arflags="rq"
2937     ar_o='$@'
2938 else
2939     arflags="rc"
2940     ar_o='$@'
2941 fi
2942
2943 add_cflags $extra_cflags
2944 add_cxxflags $extra_cxxflags
2945 add_asflags $extra_cflags
2946
2947 if test -n "$sysroot"; then
2948     case "$cc_type" in
2949         gcc|llvm_gcc|clang)
2950             add_cppflags --sysroot="$sysroot"
2951             add_ldflags --sysroot="$sysroot"
2952         ;;
2953         tms470)
2954             add_cppflags -I"$sysinclude"
2955             add_ldflags  --sysroot="$sysroot"
2956         ;;
2957     esac
2958 fi
2959
2960 if test "$cpu" = host; then
2961     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2962
2963     case "$cc_type" in
2964         gcc|llvm_gcc)
2965             check_native(){
2966                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2967                 sed -n "/cc1.*$1=/{
2968                             s/.*$1=\\([^ ]*\\).*/\\1/
2969                             p
2970                             q
2971                         }" $TMPE
2972             }
2973             cpu=$(check_native -march || check_native -mcpu)
2974         ;;
2975     esac
2976
2977     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2978 fi
2979
2980 # Deal with common $arch aliases
2981 case "$arch" in
2982     aarch64|arm64)
2983         arch="aarch64"
2984     ;;
2985     arm*|iPad*)
2986         arch="arm"
2987     ;;
2988     mips*|IP*)
2989         arch="mips"
2990     ;;
2991     parisc*|hppa*)
2992         arch="parisc"
2993     ;;
2994     "Power Macintosh"|ppc*|powerpc*)
2995         arch="ppc"
2996     ;;
2997     s390|s390x)
2998         arch="s390"
2999     ;;
3000     sh4|sh)
3001         arch="sh4"
3002     ;;
3003     sun4u|sparc*)
3004         arch="sparc"
3005     ;;
3006     tilegx|tile-gx)
3007         arch="tilegx"
3008     ;;
3009     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3010         arch="x86"
3011     ;;
3012 esac
3013
3014 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3015 enable $arch
3016
3017 # Add processor-specific flags
3018 if enabled aarch64; then
3019
3020     case $cpu in
3021         armv*)
3022             cpuflags="-march=$cpu"
3023         ;;
3024         *)
3025             cpuflags="-mcpu=$cpu"
3026         ;;
3027     esac
3028
3029 elif enabled alpha; then
3030
3031     cpuflags="-mcpu=$cpu"
3032
3033 elif enabled arm; then
3034
3035     check_arm_arch() {
3036         check_cpp_condition stddef.h \
3037             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3038             $cpuflags
3039     }
3040
3041     probe_arm_arch() {
3042         if   check_arm_arch 4;        then echo armv4;
3043         elif check_arm_arch 4T;       then echo armv4t;
3044         elif check_arm_arch 5;        then echo armv5;
3045         elif check_arm_arch 5E;       then echo armv5e;
3046         elif check_arm_arch 5T;       then echo armv5t;
3047         elif check_arm_arch 5TE;      then echo armv5te;
3048         elif check_arm_arch 5TEJ;     then echo armv5te;
3049         elif check_arm_arch 6;        then echo armv6;
3050         elif check_arm_arch 6J;       then echo armv6j;
3051         elif check_arm_arch 6K;       then echo armv6k;
3052         elif check_arm_arch 6Z;       then echo armv6z;
3053         elif check_arm_arch 6ZK;      then echo armv6zk;
3054         elif check_arm_arch 6T2;      then echo armv6t2;
3055         elif check_arm_arch 7;        then echo armv7;
3056         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3057         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3058         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3059         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3060         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3061         fi
3062     }
3063
3064     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3065
3066     case $cpu in
3067         armv*)
3068             cpuflags="-march=$cpu"
3069             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3070         ;;
3071         *)
3072             cpuflags="-mcpu=$cpu"
3073             case $cpu in
3074                 cortex-a*)                               subarch=armv7a  ;;
3075                 cortex-r*)                               subarch=armv7r  ;;
3076                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3077                 arm11*)                                  subarch=armv6   ;;
3078                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3079                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3080                 *)                             subarch=$(probe_arm_arch) ;;
3081             esac
3082         ;;
3083     esac
3084
3085     case "$subarch" in
3086         armv5t*)    enable fast_clz                ;;
3087         armv[6-8]*) enable fast_clz fast_unaligned ;;
3088     esac
3089
3090 elif enabled avr32; then
3091
3092     case $cpu in
3093         ap7[02]0[0-2])
3094             subarch="avr32_ap"
3095             cpuflags="-mpart=$cpu"
3096         ;;
3097         ap)
3098             subarch="avr32_ap"
3099             cpuflags="-march=$cpu"
3100         ;;
3101         uc3[ab]*)
3102             subarch="avr32_uc"
3103             cpuflags="-mcpu=$cpu"
3104         ;;
3105         uc)
3106             subarch="avr32_uc"
3107             cpuflags="-march=$cpu"
3108         ;;
3109     esac
3110
3111 elif enabled bfin; then
3112
3113     cpuflags="-mcpu=$cpu"
3114
3115 elif enabled mips; then
3116
3117     cpuflags="-march=$cpu"
3118
3119     case $cpu in
3120         24kc)
3121             disable mipsfpu
3122             disable mipsdspr1
3123             disable mipsdspr2
3124         ;;
3125         24kf*)
3126             disable mipsdspr1
3127             disable mipsdspr2
3128         ;;
3129         24kec|34kc|1004kc)
3130             disable mipsfpu
3131             disable mipsdspr2
3132         ;;
3133         24kef*|34kf*|1004kf*)
3134             disable mipsdspr2
3135         ;;
3136         74kc)
3137             disable mipsfpu
3138         ;;
3139     esac
3140
3141 elif enabled ppc; then
3142
3143     case $(tolower $cpu) in
3144         601|ppc601|powerpc601)
3145             cpuflags="-mcpu=601"
3146             disable altivec
3147         ;;
3148         603*|ppc603*|powerpc603*)
3149             cpuflags="-mcpu=603"
3150             disable altivec
3151         ;;
3152         604*|ppc604*|powerpc604*)
3153             cpuflags="-mcpu=604"
3154             disable altivec
3155         ;;
3156         g3|75*|ppc75*|powerpc75*)
3157             cpuflags="-mcpu=750"
3158             disable altivec
3159         ;;
3160         g4|745*|ppc745*|powerpc745*)
3161             cpuflags="-mcpu=7450"
3162         ;;
3163         74*|ppc74*|powerpc74*)
3164             cpuflags="-mcpu=7400"
3165         ;;
3166         g5|970|ppc970|powerpc970)
3167             cpuflags="-mcpu=970"
3168         ;;
3169         power[3-7]*)
3170             cpuflags="-mcpu=$cpu"
3171         ;;
3172         cell)
3173             cpuflags="-mcpu=cell"
3174             enable ldbrx
3175         ;;
3176         e500mc)
3177             cpuflags="-mcpu=e500mc"
3178             disable altivec
3179         ;;
3180         e500v2)
3181             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3182             disable altivec
3183         ;;
3184         e500)
3185             cpuflags="-mcpu=8540 -mhard-float"
3186             disable altivec
3187         ;;
3188     esac
3189
3190 elif enabled sparc; then
3191
3192     case $cpu in
3193         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3194             cpuflags="-mcpu=$cpu"
3195             disable vis
3196         ;;
3197         ultrasparc*|niagara[234])
3198             cpuflags="-mcpu=$cpu"
3199         ;;
3200     esac
3201
3202 elif enabled x86; then
3203
3204     case $cpu in
3205         i[345]86|pentium)
3206             cpuflags="-march=$cpu"
3207             disable mmx
3208         ;;
3209         # targets that do NOT support nopl and conditional mov (cmov)
3210         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3211             cpuflags="-march=$cpu"
3212             disable i686
3213         ;;
3214         # targets that do support nopl and conditional mov (cmov)
3215         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3216             cpuflags="-march=$cpu"
3217             enable i686
3218             enable fast_cmov
3219         ;;
3220         # targets that do support conditional mov but on which it's slow
3221         pentium4|pentium4m|prescott|nocona)
3222             cpuflags="-march=$cpu"
3223             enable i686
3224             disable fast_cmov
3225         ;;
3226     esac
3227
3228 fi
3229
3230 if [ "$cpu" != generic ]; then
3231     add_cflags  $cpuflags
3232     add_asflags $cpuflags
3233 fi
3234
3235 # compiler sanity check
3236 check_exec <<EOF
3237 int main(void){ return 0; }
3238 EOF
3239 if test "$?" != 0; then
3240     echo "$cc is unable to create an executable file."
3241     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3242         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3243         echo "Only do this if you know what cross compiling means."
3244     fi
3245     die "C compiler test failed."
3246 fi
3247
3248 add_cppflags -D_ISOC99_SOURCE
3249 add_cxxflags -D__STDC_CONSTANT_MACROS
3250 check_cflags -std=c99
3251 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3252 #include <stdlib.h>
3253 EOF
3254 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3255 #include <stdlib.h>
3256 EOF
3257
3258 check_host_cflags -std=c99
3259 check_host_cflags -Wall
3260
3261 check_64bit(){
3262     arch32=$1
3263     arch64=$2
3264     expr=$3
3265     check_code cc "" "int test[2*($expr) - 1]" &&
3266         subarch=$arch64 || subarch=$arch32
3267 }
3268
3269 case "$arch" in
3270     aarch64|alpha|ia64)
3271         spic=$shared
3272     ;;
3273     mips)
3274         check_64bit mips mips64 '_MIPS_SIM > 1'
3275         spic=$shared
3276     ;;
3277     parisc)
3278         check_64bit parisc parisc64 'sizeof(void *) > 4'
3279         spic=$shared
3280     ;;
3281     ppc)
3282         check_64bit ppc ppc64 'sizeof(void *) > 4'
3283         spic=$shared
3284     ;;
3285     sparc)
3286         check_64bit sparc sparc64 'sizeof(void *) > 4'
3287         spic=$shared
3288     ;;
3289     x86)
3290         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3291         if test "$subarch" = "x86_64"; then
3292             spic=$shared
3293         fi
3294     ;;
3295     ppc)
3296         check_cc <<EOF && subarch="ppc64"
3297         int test[(int)sizeof(char*) - 7];
3298 EOF
3299     ;;
3300 esac
3301
3302 enable $subarch
3303 enabled spic && enable_weak pic
3304
3305 # OS specific
3306 case $target_os in
3307     haiku)
3308         prefix_default="/boot/common"
3309         network_extralibs="-lnetwork"
3310         host_libs=
3311         ;;
3312     sunos)
3313         FFSERVERLDFLAGS=""
3314         SHFLAGS='-shared -Wl,-h,$$(@F)'
3315         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3316         network_extralibs="-lsocket -lnsl"
3317         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3318         # When using suncc to build, the Solaris linker will mark
3319         # an executable with each instruction set encountered by
3320         # the Solaris assembler.  As our libraries contain their own
3321         # guards for processor-specific code, instead suppress
3322         # generation of the HWCAPS ELF section on Solaris x86 only.
3323         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3324         nm_default='nm -P -g'
3325         ;;
3326     netbsd)
3327         disable symver
3328         oss_indev_extralibs="-lossaudio"
3329         oss_outdev_extralibs="-lossaudio"
3330         enabled gcc || check_ldflags -Wl,-zmuldefs
3331         ;;
3332     openbsd|bitrig)
3333         disable symver
3334         SHFLAGS='-shared'
3335         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3336         SLIB_INSTALL_LINKS=
3337         oss_indev_extralibs="-lossaudio"
3338         oss_outdev_extralibs="-lossaudio"
3339         ;;
3340     dragonfly)
3341         disable symver
3342         ;;
3343     freebsd)
3344         ;;
3345     bsd/os)
3346         add_extralibs -lpoll -lgnugetopt
3347         strip="strip -d"
3348         ;;
3349     darwin)
3350         gas="gas-preprocessor.pl $cc"
3351         enabled ppc && add_asflags -force_cpusubtype_ALL
3352         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3353         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3354         strip="${strip} -x"
3355         add_ldflags -Wl,-dynamic,-search_paths_first
3356         SLIBSUF=".dylib"
3357         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3358         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3359         FFSERVERLDFLAGS=-Wl,-bind_at_load
3360         objformat="macho"
3361         enabled x86_64 && objformat="macho64"
3362         enabled_any pic shared ||
3363             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3364         ;;
3365     mingw32*)
3366         if test $target_os = "mingw32ce"; then
3367             disable network
3368         else
3369             target_os=mingw32
3370         fi
3371         LIBTARGET=i386
3372         if enabled x86_64; then
3373             LIBTARGET="i386:x86-64"
3374         elif enabled arm; then
3375             LIBTARGET=arm-wince
3376         fi
3377         check_ldflags -Wl,--nxcompat
3378         check_ldflags -Wl,--dynamicbase
3379         shlibdir_default="$bindir_default"
3380         SLIBPREF=""
3381         SLIBSUF=".dll"
3382         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3383         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3384         dlltool="${cross_prefix}dlltool"
3385         if check_cmd lib.exe -list; then
3386             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3387             if enabled x86_64; then
3388                 LIBTARGET=x64
3389             fi
3390         elif check_cmd $dlltool --version; then
3391             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3392         fi
3393         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3394         SLIB_INSTALL_LINKS=
3395         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3396         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3397         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3398         objformat="win32"
3399         ranlib=:
3400         enable dos_paths
3401         disable pic
3402         ;;
3403     win32|win64)
3404         if enabled shared; then
3405             # Link to the import library instead of the normal static library
3406             # for shared libs.
3407             LD_LIB='%.lib'
3408             # Cannot build shared and static libraries at the same time with
3409             # MSVC.
3410             disable static
3411         fi
3412         shlibdir_default="$bindir_default"
3413         SLIBPREF=""
3414         SLIBSUF=".dll"
3415         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3416         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3417         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3418         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3419         SLIB_INSTALL_LINKS=
3420         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3421         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3422         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3423         objformat="win32"
3424         ranlib=:
3425         enable dos_paths
3426         disable pic
3427         ;;
3428     cygwin*)
3429         target_os=cygwin
3430         shlibdir_default="$bindir_default"
3431         SLIBPREF="cyg"
3432         SLIBSUF=".dll"
3433         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3434         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3435         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3436         SLIB_INSTALL_LINKS=
3437         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3438         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3439         objformat="win32"
3440         enable dos_paths
3441         disable pic
3442         ;;
3443     *-dos|freedos|opendos)
3444         network_extralibs="-lsocket"
3445         objformat="coff"
3446         enable dos_paths
3447         add_cppflags -U__STRICT_ANSI__
3448         ;;
3449     linux)
3450         enable dv1394
3451         ;;
3452     irix*)
3453         target_os=irix
3454         ranlib="echo ignoring ranlib"
3455         ;;
3456     os/2*)
3457         strip="lxlite -CS"
3458         ln_s="cp -f"
3459         objformat="aout"
3460         add_cppflags -D_GNU_SOURCE
3461         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3462         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3463         FFSERVERLDFLAGS=""
3464         LIBSUF="_s.a"
3465         SLIBPREF=""
3466         SLIBSUF=".dll"
3467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3469         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3470             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3471             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3472             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3473             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3474             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3475         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3476             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3477         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3478         enable dos_paths
3479         enable_weak os2threads
3480         ;;
3481     gnu/kfreebsd)
3482         add_cppflags -D_BSD_SOURCE
3483         ;;
3484     gnu)
3485         ;;
3486     qnx)
3487         add_cppflags -D_QNX_SOURCE
3488         network_extralibs="-lsocket"
3489         ;;
3490     symbian)
3491         SLIBSUF=".dll"
3492         enable dos_paths
3493         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3494         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3495         add_ldflags -Wl,--target1-abs,--no-undefined \
3496                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3497                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3498         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3499                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3500                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3501         ;;
3502     osf1)
3503         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3504         FFSERVERLDFLAGS=
3505         ;;
3506     minix)
3507         ;;
3508     plan9)
3509         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3510                      -D_REENTRANT_SOURCE        \
3511                      -D_RESEARCH_SOURCE         \
3512                      -DFD_SETSIZE=96            \
3513                      -DHAVE_SOCK_OPTS
3514         add_compat strtod.o strtod=avpriv_strtod
3515         network_extralibs='-lbsd'
3516         exeobjs=compat/plan9/main.o
3517         disable ffserver
3518         cp_f='cp'
3519         ;;
3520     none)
3521         ;;
3522     *)
3523         die "Unknown OS '$target_os'."
3524         ;;
3525 esac
3526
3527 # determine libc flavour
3528
3529 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3530 if check_cpp_condition features.h "defined __UCLIBC__"; then
3531     libc_type=uclibc
3532     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3533 elif check_cpp_condition features.h "defined __GLIBC__"; then
3534     libc_type=glibc
3535     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3536 # MinGW headers can be installed on Cygwin, so check for newlib first.
3537 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3538     libc_type=newlib
3539     add_cppflags -U__STRICT_ANSI__
3540 elif check_header _mingw.h; then
3541     libc_type=mingw
3542     check_cpp_condition _mingw.h \
3543         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3544             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3545         die "ERROR: MinGW runtime version must be >= 3.15."
3546     add_cppflags -U__STRICT_ANSI__
3547     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3548             __MINGW64_VERSION_MAJOR < 3"; then
3549         add_compat msvcrt/snprintf.o
3550         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3551     fi
3552 elif check_func_headers stdlib.h _get_doserrno; then
3553     libc_type=msvcrt
3554     add_compat strtod.o strtod=avpriv_strtod
3555     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3556                                  _snprintf=avpriv_snprintf  \
3557                                  vsnprintf=avpriv_vsnprintf
3558 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3559     libc_type=klibc
3560 fi
3561
3562 test -n "$libc_type" && enable $libc_type
3563
3564 # hacks for compiler/libc/os combinations
3565
3566 if enabled_all tms470 glibc; then
3567     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3568     add_cppflags -D__USER_LABEL_PREFIX__=
3569     add_cppflags -D__builtin_memset=memset
3570     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3571     add_cflags   -pds=48    # incompatible redefinition of macro
3572 fi
3573
3574 if enabled_all ccc glibc; then
3575     add_ldflags -Wl,-z,now  # calls to libots crash without this
3576 fi
3577
3578 esc(){
3579     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3580 }
3581
3582 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3583
3584 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3585
3586 set_default $PATHS_LIST
3587 set_default nm
3588
3589 # we need to build at least one lib type
3590 if ! enabled_any static shared; then
3591     cat <<EOF
3592 At least one library type must be built.
3593 Specify --enable-static to build the static libraries or --enable-shared to
3594 build the shared libraries as well. To only build the shared libraries specify
3595 --disable-static in addition to --enable-shared.
3596 EOF
3597     exit 1;
3598 fi
3599
3600 die_license_disabled() {
3601     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3602 }
3603
3604 die_license_disabled_gpl() {
3605     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3606 }
3607
3608 die_license_disabled gpl libcdio
3609 die_license_disabled gpl libutvideo
3610 die_license_disabled gpl libvidstab
3611 die_license_disabled gpl libx264
3612 die_license_disabled gpl libxavs
3613 die_license_disabled gpl libxvid
3614 die_license_disabled gpl x11grab
3615
3616 die_license_disabled nonfree libaacplus
3617 die_license_disabled nonfree libfaac
3618 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3619 enabled gpl && die_license_disabled_gpl nonfree openssl
3620
3621 die_license_disabled version3 libopencore_amrnb
3622 die_license_disabled version3 libopencore_amrwb
3623 die_license_disabled version3 libvo_aacenc
3624 die_license_disabled version3 libvo_amrwbenc
3625
3626 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3627
3628 disabled optimizations || check_cflags -fomit-frame-pointer
3629
3630 enable_weak_pic() {
3631     disabled pic && return
3632     enable pic
3633     add_cppflags -DPIC
3634     add_cflags   -fPIC
3635     add_asflags  -fPIC
3636 }
3637
3638 enabled pic && enable_weak_pic
3639
3640 check_cc <<EOF || die "Symbol mangling check failed."
3641 int ff_extern;
3642 EOF
3643 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3644 extern_prefix=${sym%%ff_extern*}
3645
3646 check_cc <<EOF && enable_weak inline_asm
3647 void foo(void) { __asm__ volatile ("" ::); }
3648 EOF
3649
3650 _restrict=
3651 for restrict_keyword in restrict __restrict__ __restrict; do
3652     check_cc <<EOF && _restrict=$restrict_keyword && break
3653 void foo(char * $restrict_keyword p);
3654 EOF
3655 done
3656
3657 check_cc <<EOF && enable attribute_packed
3658 struct { int x; } __attribute__((packed)) x;
3659 EOF
3660
3661 check_cc <<EOF && enable attribute_may_alias
3662 union { int x; } __attribute__((may_alias)) x;
3663 EOF
3664
3665 check_cc <<EOF || die "endian test failed"
3666 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3667 EOF
3668 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3669
3670 if enabled alpha; then
3671
3672     check_cflags -mieee
3673
3674 elif enabled arm; then
3675
3676     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3677 float func(float a, float b){ return a+b; }
3678 EOF
3679
3680     enabled thumb && check_cflags -mthumb || check_cflags -marm
3681     nogas=die
3682
3683     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3684         enable vfp_args
3685     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3686         case "${cross_prefix:-$cc}" in
3687             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3688             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3689 __asm__ (".eabi_attribute 28, 1");
3690 int main(void) { return 0; }
3691 EOF
3692         esac
3693         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3694     fi
3695
3696     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3697     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3698     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3699     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3700     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3701     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3702
3703     [ $target_os = linux ] ||
3704         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3705             $ARCH_EXT_LIST_ARM
3706
3707     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3708     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3709
3710     enabled_all armv6t2 shared !pic && enable_weak_pic
3711
3712 elif enabled mips; then
3713
3714     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3715     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3716      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3717     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3718      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3719     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3720      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3721     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3722      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3723
3724 elif enabled parisc; then
3725
3726     if enabled gcc; then
3727         case $($cc -dumpversion) in
3728             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3729         esac
3730     fi
3731
3732 elif enabled ppc; then
3733
3734     enable local_aligned_8 local_aligned_16
3735
3736     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3737     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3738     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3739     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3740
3741     # AltiVec flags: The FSF version of GCC differs from the Apple version
3742     if enabled altivec; then
3743         nogas=warn
3744         check_cflags -maltivec -mabi=altivec &&
3745         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3746         check_cflags -faltivec
3747
3748         # check if our compiler supports Motorola AltiVec C API
3749         check_cc <<EOF || disable altivec
3750 $inc_altivec_h
3751 int main(void) {
3752     vector signed int v1 = (vector signed int) { 0 };
3753     vector signed int v2 = (vector signed int) { 1 };
3754     v1 = vec_add(v1, v2);
3755     return 0;
3756 }
3757 EOF
3758
3759         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3760     fi
3761
3762 elif enabled sparc; then
3763
3764     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3765
3766 elif enabled x86; then
3767
3768     check_builtin rdtsc    intrin.h   "__rdtsc()"
3769     check_builtin mm_empty mmintrin.h "_mm_empty()"
3770
3771     enable local_aligned_8 local_aligned_16
3772
3773     # check whether EBP is available on x86
3774     # As 'i' is stored on the stack, this program will crash
3775     # if the base pointer is used to access it because the
3776     # base pointer is cleared in the inline assembly code.
3777     check_exec_crash <<EOF && enable ebp_available
3778 volatile int i=0;
3779 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3780 return i;
3781 EOF
3782
3783     # check whether EBX is available on x86
3784     check_inline_asm ebx_available '""::"b"(0)' &&
3785         check_inline_asm ebx_available '"":::"%ebx"'
3786
3787     # check whether xmm clobbers are supported
3788     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3789
3790     # check whether binutils is new enough to compile SSSE3/MMXEXT
3791     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3792     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3793
3794     if ! disabled_any asm mmx yasm; then
3795         if check_cmd $yasmexe --version; then
3796             enabled x86_64 && yasm_extra="-m amd64"
3797             yasm_debug="-g dwarf2"
3798         elif check_cmd nasm -v; then
3799             yasmexe=nasm
3800             yasm_debug="-g -F dwarf"
3801             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3802         fi
3803
3804         YASMFLAGS="-f $objformat $yasm_extra"
3805         enabled pic               && append YASMFLAGS "-DPIC"
3806         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3807         case "$objformat" in
3808             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3809         esac
3810
3811         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3812             die "yasm not found, use --disable-yasm for a crippled build"
3813         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3814         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3815         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3816     fi
3817
3818     case "$cpu" in
3819         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3820             disable fast_clz
3821         ;;
3822     esac
3823
3824 fi
3825
3826 if enabled asm; then
3827     as=${gas:=$as}
3828     check_as <<EOF && enable gnu_as || \
3829         $nogas "GNU assembler not found, install gas-preprocessor"
3830 .macro m n
3831 \n: .int 0
3832 .endm
3833 m x
3834 EOF
3835 fi
3836
3837 check_ldflags -Wl,--as-needed
3838
3839 if check_func dlopen; then
3840     ldl=
3841 elif check_func dlopen -ldl; then
3842     ldl=-ldl
3843 fi
3844
3845 if ! disabled network; then
3846     check_type "sys/types.h sys/socket.h" socklen_t
3847     check_type netdb.h "struct addrinfo"
3848     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3849     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3850     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3851     check_type netinet/in.h "struct sockaddr_in6"
3852     check_type poll.h "struct pollfd"
3853     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3854     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3855     check_type netinet/sctp.h "struct sctp_event_subscribe"
3856     check_func getaddrinfo $network_extralibs
3857     check_func getservbyport $network_extralibs
3858     # Prefer arpa/inet.h over winsock2
3859     if check_header arpa/inet.h ; then
3860         check_func closesocket
3861     elif check_header winsock2.h ; then
3862         check_func_headers winsock2.h closesocket -lws2 &&
3863             network_extralibs="-lws2" ||
3864         { check_func_headers winsock2.h closesocket -lws2_32 &&
3865             network_extralibs="-lws2_32"; }
3866         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3867         check_type ws2tcpip.h socklen_t
3868         check_type ws2tcpip.h "struct addrinfo"
3869         check_type ws2tcpip.h "struct group_source_req"
3870         check_type ws2tcpip.h "struct ip_mreq_source"
3871         check_type ws2tcpip.h "struct ipv6_mreq"
3872         check_type winsock2.h "struct pollfd"
3873         check_type ws2tcpip.h "struct sockaddr_in6"
3874         check_type ws2tcpip.h "struct sockaddr_storage"
3875         check_struct winsock2.h "struct sockaddr" sa_len
3876     else
3877         disable network
3878     fi
3879 fi
3880
3881 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3882 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3883
3884 check_func  access
3885 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3886 check_func  fcntl
3887 check_func  fork
3888 check_func_headers stdlib.h getenv
3889 check_func  gethrtime
3890 check_func  getopt
3891 check_func  getrusage
3892 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3893 check_func  gettimeofday
3894 check_func  inet_aton $network_extralibs
3895 check_func  isatty
3896 check_func  localtime_r
3897 check_func  ${malloc_prefix}memalign            && enable memalign
3898 check_func  mkstemp
3899 check_func  mmap
3900 check_func  mprotect
3901 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3902 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3903 check_func  setrlimit
3904 check_func  strerror_r
3905 check_func  sched_getaffinity
3906 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3907 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3908 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3909 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3910 check_func  sysconf
3911 check_func  sysctl
3912 check_func  usleep
3913 check_func_headers conio.h kbhit
3914 check_func_headers windows.h PeekNamedPipe
3915 check_func_headers io.h setmode
3916 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3917 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3918 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3919 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3920 check_func_headers windows.h GetProcessAffinityMask
3921 check_func_headers windows.h GetProcessTimes
3922 check_func_headers windows.h GetSystemTimeAsFileTime
3923 check_func_headers windows.h MapViewOfFile
3924 check_func_headers windows.h SetConsoleTextAttribute
3925 check_func_headers windows.h Sleep
3926 check_func_headers windows.h VirtualAlloc
3927 check_func_headers glob.h glob
3928
3929 check_header cl/cl.h
3930 check_header direct.h
3931 check_header dlfcn.h
3932 check_header dxva.h
3933 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3934 check_header io.h
3935 check_header libcrystalhd/libcrystalhd_if.h
3936 check_header malloc.h
3937 check_header poll.h
3938 check_header sys/mman.h
3939 check_header sys/param.h
3940 check_header sys/resource.h
3941 check_header sys/select.h
3942 check_header sys/time.h
3943 check_header termios.h
3944 check_header unistd.h
3945 check_header vdpau/vdpau.h
3946 check_header vdpau/vdpau_x11.h
3947 check_header VideoDecodeAcceleration/VDADecoder.h
3948 check_header windows.h
3949 check_header X11/extensions/XvMClib.h
3950 check_header asm/types.h
3951
3952 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3953 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3954
3955 if ! disabled w32threads && ! enabled pthreads; then
3956     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3957 fi
3958
3959 # check for some common methods of building with pthread support
3960 # do this before the optional library checks as some of them require pthreads
3961 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3962     enable pthreads
3963     if check_func pthread_create; then
3964         :
3965     elif check_func pthread_create -pthread; then
3966         add_cflags -pthread
3967         add_extralibs -pthread
3968     elif check_func pthread_create -pthreads; then
3969         add_cflags -pthreads
3970         add_extralibs -pthreads
3971     elif check_func pthread_create -lpthreadGC2; then
3972         add_extralibs -lpthreadGC2
3973     elif ! check_lib pthread.h pthread_create -lpthread; then
3974         disable pthreads
3975     fi
3976 fi
3977
3978 for thread in $THREADS_LIST; do
3979     if enabled $thread; then
3980         test -n "$thread_type" &&
3981             die "ERROR: Only one thread type must be selected." ||
3982             thread_type="$thread"
3983     fi
3984 done
3985
3986 if enabled pthreads; then
3987   check_func pthread_cancel
3988 fi
3989
3990 enabled sync_val_compare_and_swap && enable atomics_gcc
3991 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
3992 enabled MemoryBarrier && enable atomics_win32
3993
3994 check_lib math.h sin -lm && LIBM="-lm"
3995 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3996
3997 atan2f_args=2
3998 ldexpf_args=2
3999 powf_args=2
4000
4001 for func in $MATH_FUNCS; do
4002     eval check_mathfunc $func \${${func}_args:-1}
4003 done
4004
4005 # these are off by default, so fail if requested and not available
4006 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
4007                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4008                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4009 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4010 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4011 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4012 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4013 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4014 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
4015 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
4016 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
4017                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4018                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4019 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
4020 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4021 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4022 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4023 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
4024 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4025 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4026                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4027                         done || die "ERROR: libgsm not found"; }
4028 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4029 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4030 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4031 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
4032 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4033 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4034 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4035 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4036                          check_lib openjpeg.h opj_version -lopenjpeg ||