configure: Factor out rv34dsp module
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav 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 LIBAV, 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 Libav."
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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --prefix=PREFIX          install in PREFIX [$prefix]
82   --bindir=DIR             install binaries in DIR [PREFIX/bin]
83   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
84   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
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   --enable-rpath           use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92   --enable-gpl             allow use of GPL code, the resulting libs
93                            and binaries will be under GPL [no]
94   --enable-version3        upgrade (L)GPL to version 3 [no]
95   --enable-nonfree         allow use of nonfree code, the resulting libs
96                            and binaries will be unredistributable [no]
97
98 Configuration options:
99   --disable-static         do not build static libraries [no]
100   --enable-shared          build shared libraries [no]
101   --enable-small           optimize for size instead of speed
102   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103   --enable-gray            enable full grayscale support (slower color)
104   --disable-swscale-alpha  disable alpha channel support in swscale
105   --disable-all            disable building components, libraries and programs
106
107 Program options:
108   --disable-programs       do not build command line programs
109   --disable-avconv         disable avconv build
110   --disable-avplay         disable avplay build
111   --disable-avprobe        disable avprobe build
112   --disable-avserver       deprecated, does nothing
113
114 Component options:
115   --disable-doc            do not build documentation
116   --disable-avdevice       disable libavdevice build
117   --disable-avcodec        disable libavcodec build
118   --disable-avformat       disable libavformat build
119   --disable-avutil         disable libavutil build
120   --disable-swscale        disable libswscale build
121   --disable-avfilter       disable video filter support [no]
122   --disable-avresample     disable libavresample build [no]
123   --disable-pthreads       disable pthreads [auto]
124   --disable-w32threads     disable Win32 threads [auto]
125   --disable-network        disable network support [no]
126   --disable-dct            disable DCT code
127   --disable-error-resilience disable error resilience code
128   --disable-lsp            disable LSP code
129   --disable-lzo            disable LZO decoder code
130   --disable-mdct           disable MDCT code
131   --disable-rdft           disable RDFT code
132   --disable-fft            disable FFT code
133   --disable-faan           disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136   --enable-d3d11va         enable D3D11VA code
137   --enable-dxva2           enable DXVA2 code
138   --enable-vaapi           enable VAAPI code
139   --enable-vda             enable VDA code
140   --enable-vdpau           enable VDPAU code
141
142 Individual component options:
143   --disable-everything     disable all components listed below
144   --disable-encoder=NAME   disable encoder NAME
145   --enable-encoder=NAME    enable encoder NAME
146   --disable-encoders       disable all encoders
147   --disable-decoder=NAME   disable decoder NAME
148   --enable-decoder=NAME    enable decoder NAME
149   --disable-decoders       disable all decoders
150   --disable-hwaccel=NAME   disable hwaccel NAME
151   --enable-hwaccel=NAME    enable hwaccel NAME
152   --disable-hwaccels       disable all hwaccels
153   --disable-muxer=NAME     disable muxer NAME
154   --enable-muxer=NAME      enable muxer NAME
155   --disable-muxers         disable all muxers
156   --disable-demuxer=NAME   disable demuxer NAME
157   --enable-demuxer=NAME    enable demuxer NAME
158   --disable-demuxers       disable all demuxers
159   --enable-parser=NAME     enable parser NAME
160   --disable-parser=NAME    disable parser NAME
161   --disable-parsers        disable all parsers
162   --enable-bsf=NAME        enable bitstream filter NAME
163   --disable-bsf=NAME       disable bitstream filter NAME
164   --disable-bsfs           disable all bitstream filters
165   --enable-protocol=NAME   enable protocol NAME
166   --disable-protocol=NAME  disable protocol NAME
167   --disable-protocols      disable all protocols
168   --enable-indev=NAME      enable input device NAME
169   --disable-indev=NAME     disable input device NAME
170   --disable-indevs         disable input devices
171   --enable-outdev=NAME     enable output device NAME
172   --disable-outdev=NAME    disable output device NAME
173   --disable-outdevs        disable output devices
174   --disable-devices        disable all devices
175   --enable-filter=NAME     enable filter NAME
176   --disable-filter=NAME    disable filter NAME
177   --disable-filters        disable all filters
178
179 External library support:
180   --enable-avisynth        enable reading of AviSynth script files [no]
181   --enable-bzlib           enable bzlib [autodetect]
182   --enable-frei0r          enable frei0r video filtering
183   --enable-gnutls          enable gnutls [no]
184   --enable-libbs2b         enable bs2b DSP library [no]
185   --enable-libcdio         enable audio CD grabbing with libcdio
186   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
187                            and libraw1394 [no]
188   --enable-libdcadec       enable DCA decoding via libdcadec [no]
189   --enable-libfaac         enable AAC encoding via libfaac [no]
190   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
191   --enable-libfreetype     enable libfreetype [no]
192   --enable-libgsm          enable GSM de/encoding via libgsm [no]
193   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
194   --enable-libmfx          enable HW acceleration through libmfx
195   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
196   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
197   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
198   --enable-libopencv       enable video filtering via libopencv [no]
199   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
200   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
201   --enable-libopus         enable Opus de/encoding via libopus [no]
202   --enable-libpulse        enable Pulseaudio input via libpulse [no]
203   --enable-librtmp         enable RTMP[E] support via librtmp [no]
204   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
205   --enable-libsnappy       enable Snappy compression [no]
206   --enable-libspeex        enable Speex de/encoding via libspeex [no]
207   --enable-libtheora       enable Theora encoding via libtheora [no]
208   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
209   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
210   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
211   --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
212   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
213   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
214   --enable-libwebp         enable WebP encoding via libwebp [no]
215   --enable-libx264         enable H.264 encoding via x264 [no]
216   --enable-libx265         enable HEVC encoding via x265 [no]
217   --enable-libxavs         enable AVS encoding via xavs [no]
218   --enable-libxcb          enable X11 grabbing using XCB [no]
219   --enable-libxcb-shm      enable X11 grabbing shm communication [auto]
220   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [auto]
221   --enable-libxvid         enable Xvid encoding via xvidcore,
222                            native MPEG-4/Xvid encoder exists [no]
223   --enable-mmal            enable decoding via MMAL [no]
224   --enable-nvenc           enable encoding via NVENC [no]
225   --enable-openssl         enable openssl [no]
226   --enable-x11grab         enable X11 grabbing (legacy) [no]
227   --enable-zlib            enable zlib [autodetect]
228
229 Toolchain options:
230   --arch=ARCH              select architecture [$arch]
231   --cpu=CPU                select the minimum required CPU (affects
232                            instruction selection, may crash on older CPUs)
233   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
234   --enable-cross-compile   assume a cross-compiler is used
235   --sysroot=PATH           root of cross-build tree
236   --sysinclude=PATH        location of cross-build system headers
237   --target-os=OS           compiler targets OS [$target_os]
238   --target-exec=CMD        command to run executables on target
239   --target-path=DIR        path to view of build directory on target
240   --target-samples=DIR     path to samples directory on target
241   --toolchain=NAME         set tool defaults according to NAME
242   --nm=NM                  use nm tool
243   --ar=AR                  use archive tool AR [$ar_default]
244   --as=AS                  use assembler AS [$as_default]
245   --cc=CC                  use C compiler CC [$cc_default]
246   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
247   --ld=LD                  use linker LD
248   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
249   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
250   --host-cc=HOSTCC         use host C compiler HOSTCC
251   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
252   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
253   --host-ld=HOSTLD         use host linker HOSTLD
254   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
255   --host-libs=HLIBS        use libs HLIBS when linking for host
256   --host-os=OS             compiler host OS [$target_os]
257   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
258   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
259   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
260   --extra-libs=ELIBS       add ELIBS [$ELIBS]
261   --extra-version=STRING   version string suffix []
262   --optflags=OPTFLAGS      override optimization-related compiler flags
263   --build-suffix=SUFFIX    library name suffix []
264   --enable-pic             build position-independent code
265   --enable-thumb           compile for Thumb instruction set
266   --enable-lto             use link-time optimization
267   --env="ENV=override"     override the environment variables
268
269 Advanced options (experts only):
270   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
271   --disable-symver         disable symbol versioning
272   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
273   --disable-safe-bitstream-reader
274                            disable buffer boundary checking in bitreaders
275                            (faster, but may crash)
276   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
277   --enable-sram            allow use of on-chip SRAM
278
279 Optimization options (experts only):
280   --disable-asm            disable all assembly optimizations
281   --disable-altivec        disable AltiVec optimizations
282   --disable-vsx            disable VSX optimizations
283   --disable-power8         disable POWER8 optimizations
284   --disable-amd3dnow       disable 3DNow! optimizations
285   --disable-amd3dnowext    disable 3DNow! extended optimizations
286   --disable-mmx            disable MMX optimizations
287   --disable-mmxext         disable MMXEXT optimizations
288   --disable-sse            disable SSE optimizations
289   --disable-sse2           disable SSE2 optimizations
290   --disable-sse3           disable SSE3 optimizations
291   --disable-ssse3          disable SSSE3 optimizations
292   --disable-sse4           disable SSE4 optimizations
293   --disable-sse42          disable SSE4.2 optimizations
294   --disable-avx            disable AVX optimizations
295   --disable-xop            disable XOP optimizations
296   --disable-fma3           disable FMA3 optimizations
297   --disable-fma4           disable FMA4 optimizations
298   --disable-avx2           disable AVX2 optimizations
299   --disable-armv5te        disable armv5te optimizations
300   --disable-armv6          disable armv6 optimizations
301   --disable-armv6t2        disable armv6t2 optimizations
302   --disable-vfp            disable VFP optimizations
303   --disable-neon           disable NEON optimizations
304   --disable-inline-asm     disable use of inline assembly
305   --disable-yasm           disable use of nasm/yasm assembly
306
307 Developer options (useful when working on Libav itself):
308   --disable-debug          disable debugging symbols
309   --enable-debug=LEVEL     set the debug level [$debuglevel]
310   --disable-optimizations  disable compiler optimizations
311   --enable-extra-warnings  enable more compiler warnings
312   --samples=PATH           location of test samples for FATE, if not set use
313                            \$LIBAV_SAMPLES at make invocation time.
314   --enable-neon-clobber-test check NEON registers for clobbering (should be
315                            used only for debugging purposes)
316   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
317                            should be used only for debugging purposes)
318   --enable-random          randomly enable/disable components
319   --disable-random
320   --enable-random=LIST     randomly enable/disable specific components or
321   --disable-random=LIST    component groups. LIST is a comma-separated list
322                            of NAME[:PROB] entries where NAME is a component
323                            (group) and PROB the probability associated with
324                            NAME (default 0.5).
325   --random-seed=VALUE      seed value for --enable/disable-random
326   --disable-valgrind-backtrace do not print a backtrace under Valgrind
327                            (only applies to --disable-optimizations builds)
328
329 NOTE: Object files are built at the place where configure is launched.
330 EOF
331   exit 0
332 }
333
334 quotes='""'
335
336 log(){
337     echo "$@" >> $logfile
338 }
339
340 log_file(){
341     log BEGIN $1
342     pr -n -t $1 >> $logfile
343     log END $1
344 }
345
346 echolog(){
347     log "$@"
348     echo "$@"
349 }
350
351 warn(){
352     log "WARNING: $*"
353     WARNINGS="${WARNINGS}WARNING: $*\n"
354 }
355
356 die(){
357     echolog "$@"
358     cat <<EOF
359
360 If you think configure made a mistake, make sure you are using the latest
361 version from Git.  If the latest version fails, report the problem to the
362 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
363 EOF
364     if disabled logging; then
365         cat <<EOF
366 Rerun configure with logging enabled (do not use --disable-logging), and
367 include the log this produces with your report.
368 EOF
369     else
370         cat <<EOF
371 Include the log file "$logfile" produced by configure as this will help
372 solving the problem.
373 EOF
374     fi
375     exit 1
376 }
377
378 # Avoid locale weirdness, besides we really just want to translate ASCII.
379 toupper(){
380     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
381 }
382
383 tolower(){
384     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
385 }
386
387 c_escape(){
388     echo "$*" | sed 's/["\\]/\\\0/g'
389 }
390
391 sh_quote(){
392     v=$(echo "$1" | sed "s/'/'\\\\''/g")
393     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
394     echo "$v"
395 }
396
397 cleanws(){
398     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
399 }
400
401 filter(){
402     pat=$1
403     shift
404     for v; do
405         eval "case $v in $pat) echo $v ;; esac"
406     done
407 }
408
409 filter_out(){
410     pat=$1
411     shift
412     for v; do
413         eval "case $v in $pat) ;; *) echo $v ;; esac"
414     done
415 }
416
417 map(){
418     m=$1
419     shift
420     for v; do eval $m; done
421 }
422
423 add_suffix(){
424     suffix=$1
425     shift
426     for v; do echo ${v}${suffix}; done
427 }
428
429 set_all(){
430     value=$1
431     shift
432     for var in $*; do
433         eval $var=$value
434     done
435 }
436
437 set_weak(){
438     value=$1
439     shift
440     for var; do
441         eval : \${$var:=$value}
442     done
443 }
444
445 sanitize_var_name(){
446     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
447 }
448
449 set_safe(){
450     var=$1
451     shift
452     eval $(sanitize_var_name "$var")='$*'
453 }
454
455 get_safe(){
456     eval echo \$$(sanitize_var_name "$1")
457 }
458
459 pushvar(){
460     for pvar in $*; do
461         eval level=\${${pvar}_level:=0}
462         eval ${pvar}_${level}="\$$pvar"
463         eval ${pvar}_level=$(($level+1))
464     done
465 }
466
467 popvar(){
468     for pvar in $*; do
469         eval level=\${${pvar}_level:-0}
470         test $level = 0 && continue
471         eval level=$(($level-1))
472         eval $pvar="\${${pvar}_${level}}"
473         eval ${pvar}_level=$level
474         eval unset ${pvar}_${level}
475     done
476 }
477
478 enable(){
479     set_all yes $*
480 }
481
482 disable(){
483     set_all no $*
484 }
485
486 enable_weak(){
487     set_weak yes $*
488 }
489
490 disable_weak(){
491     set_weak no $*
492 }
493
494 enable_safe(){
495     for var; do
496         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
497     done
498 }
499
500 disable_safe(){
501     for var; do
502         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
503     done
504 }
505
506 do_enable_deep(){
507     for var; do
508         enabled $var && continue
509         eval sel="\$${var}_select"
510         eval sgs="\$${var}_suggest"
511         pushvar var sgs
512         enable_deep $sel
513         popvar sgs
514         enable_deep_weak $sgs
515         popvar var
516     done
517 }
518
519 enable_deep(){
520     do_enable_deep $*
521     enable $*
522 }
523
524 enable_deep_weak(){
525     for var; do
526         disabled $var && continue
527         pushvar var
528         do_enable_deep $var
529         popvar var
530         enable_weak $var
531     done
532 }
533
534 enabled(){
535     test "${1#!}" = "$1" && op== || op=!=
536     eval test "x\$${1#!}" $op "xyes"
537 }
538
539 disabled(){
540     test "${1#!}" = "$1" && op== || op=!=
541     eval test "x\$${1#!}" $op "xno"
542 }
543
544 enabled_all(){
545     for opt; do
546         enabled $opt || return 1
547     done
548 }
549
550 disabled_all(){
551     for opt; do
552         disabled $opt || return 1
553     done
554 }
555
556 enabled_any(){
557     for opt; do
558         enabled $opt && return 0
559     done
560 }
561
562 disabled_any(){
563     for opt; do
564         disabled $opt && return 0
565     done
566     return 1
567 }
568
569 set_default(){
570     for opt; do
571         eval : \${$opt:=\$${opt}_default}
572     done
573 }
574
575 is_in(){
576     value=$1
577     shift
578     for var in $*; do
579         [ $var = $value ] && return 0
580     done
581     return 1
582 }
583
584 do_check_deps(){
585     for cfg; do
586         cfg="${cfg#!}"
587         enabled ${cfg}_checking && die "Circular dependency for $cfg."
588         disabled ${cfg}_checking && continue
589         enable ${cfg}_checking
590         append allopts $cfg
591
592         eval dep_all="\$${cfg}_deps"
593         eval dep_any="\$${cfg}_deps_any"
594         eval dep_sel="\$${cfg}_select"
595         eval dep_sgs="\$${cfg}_suggest"
596         eval dep_ifa="\$${cfg}_if"
597         eval dep_ifn="\$${cfg}_if_any"
598
599         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
600         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
601         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
602
603         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
604         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
605         enabled_all  $dep_all || disable $cfg
606         enabled_any  $dep_any || disable $cfg
607         disabled_any $dep_sel && disable $cfg
608
609         if enabled $cfg; then
610             enable_deep $dep_sel
611             enable_deep_weak $dep_sgs
612         fi
613
614         disable ${cfg}_checking
615     done
616 }
617
618 check_deps(){
619     unset allopts
620
621     do_check_deps "$@"
622
623     for cfg in $allopts; do
624         enabled $cfg || continue
625         eval dep_extralibs="\$${cfg}_extralibs"
626         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
627     done
628 }
629
630 print_config(){
631     pfx=$1
632     files=$2
633     shift 2
634     map 'eval echo "$v \${$v:-no}"' "$@" |
635     awk "BEGIN { split(\"$files\", files) }
636         {
637             c = \"$pfx\" toupper(\$1);
638             v = \$2;
639             sub(/yes/, 1, v);
640             sub(/no/,  0, v);
641             for (f in files) {
642                 file = files[f];
643                 if (file ~ /\\.h\$/) {
644                     printf(\"#define %s %d\\n\", c, v) >>file;
645                 } else if (file ~ /\\.asm\$/) {
646                     printf(\"%%define %s %d\\n\", c, v) >>file;
647                 } else if (file ~ /\\.mak\$/) {
648                     n = -v ? \"\" : \"!\";
649                     printf(\"%s%s=yes\\n\", n, c) >>file;
650                 }
651             }
652         }"
653 }
654
655 print_enabled(){
656     suf=$1
657     shift
658     for v; do
659         enabled $v && printf "%s\n" ${v%$suf};
660     done
661 }
662
663 append(){
664     var=$1
665     shift
666     eval "$var=\"\$$var $*\""
667 }
668
669 prepend(){
670     var=$1
671     shift
672     eval "$var=\"$* \$$var\""
673 }
674
675 unique(){
676     var=$1
677     uniq_list=""
678     for tok in $(eval echo \$$var); do
679         uniq_list="$(filter_out $tok $uniq_list) $tok"
680     done
681     eval "$var=\"${uniq_list}\""
682 }
683
684 add_cppflags(){
685     append CPPFLAGS "$@"
686 }
687
688 add_cflags(){
689     append CFLAGS $($cflags_filter "$@")
690 }
691
692 add_asflags(){
693     append ASFLAGS $($asflags_filter "$@")
694 }
695
696 add_ldflags(){
697     append LDFLAGS $($ldflags_filter "$@")
698 }
699
700 add_ldexeflags(){
701     append LDEXEFLAGS $($ldflags_filter "$@")
702 }
703
704 add_stripflags(){
705     append STRIPFLAGS "$@"
706 }
707
708 add_extralibs(){
709     prepend extralibs $($ldflags_filter "$@")
710 }
711
712 add_host_cppflags(){
713     append host_cppflags "$@"
714 }
715
716 add_host_cflags(){
717     append host_cflags $($host_cflags_filter "$@")
718 }
719
720 add_host_ldflags(){
721     append host_ldflags $($host_ldflags_filter "$@")
722 }
723
724 add_compat(){
725     append compat_objs $1
726     shift
727     map 'add_cppflags -D$v' "$@"
728 }
729
730 check_cmd(){
731     log "$@"
732     "$@" >> $logfile 2>&1
733 }
734
735 cc_o(){
736     eval printf '%s\\n' $CC_O
737 }
738
739 cc_e(){
740     eval printf '%s\\n' $CC_E
741 }
742
743 check_cc(){
744     log check_cc "$@"
745     cat > $TMPC
746     log_file $TMPC
747     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
748 }
749
750 check_cpp(){
751     log check_cpp "$@"
752     cat > $TMPC
753     log_file $TMPC
754     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
755 }
756
757 as_o(){
758     eval printf '%s\\n' $AS_O
759 }
760
761 check_as(){
762     log check_as "$@"
763     cat > $TMPS
764     log_file $TMPS
765     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
766 }
767
768 check_inline_asm(){
769     log check_inline_asm "$@"
770     name="$1"
771     code="$2"
772     shift 2
773     disable $name
774     check_cc "$@" <<EOF && enable $name
775 void foo(void){ __asm__ volatile($code); }
776 EOF
777 }
778
779 check_insn(){
780     log check_insn "$@"
781     check_inline_asm ${1}_inline "\"$2\""
782     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
783 }
784
785 check_yasm(){
786     log check_yasm "$@"
787     echo "$1" > $TMPS
788     log_file $TMPS
789     shift 1
790     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
791 }
792
793 ld_o(){
794     eval printf '%s\\n' $LD_O
795 }
796
797 check_ld(){
798     log check_ld "$@"
799     flags=$(filter_out '-l*' "$@")
800     libs=$(filter '-l*' "$@")
801     check_cc $($cflags_filter $flags) || return
802     flags=$($ldflags_filter $flags)
803     libs=$($ldflags_filter $libs)
804     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
805 }
806
807 print_include(){
808     hdr=$1
809     test "${hdr%.h}" = "${hdr}" &&
810         echo "#include $hdr"    ||
811         echo "#include <$hdr>"
812 }
813
814 check_code(){
815     log check_code "$@"
816     check=$1
817     headers=$2
818     code=$3
819     shift 3
820     {
821         for hdr in $headers; do
822             print_include $hdr
823         done
824         echo "int main(void) { $code; return 0; }"
825     } | check_$check "$@"
826 }
827
828 check_cppflags(){
829     log check_cppflags "$@"
830     check_cc "$@" <<EOF && append CPPFLAGS "$@"
831 int x;
832 EOF
833 }
834
835 test_cflags(){
836     log test_cflags "$@"
837     set -- $($cflags_filter "$@")
838     check_cc "$@" <<EOF
839 int x;
840 EOF
841 }
842
843 check_cflags(){
844     log check_cflags "$@"
845     test_cflags "$@" && add_cflags "$@"
846 }
847
848 test_ldflags(){
849     log test_ldflags "$@"
850     check_ld "$@" <<EOF
851 int main(void){ return 0; }
852 EOF
853 }
854
855 check_ldflags(){
856     log check_ldflags "$@"
857     test_ldflags "$@" && add_ldflags "$@"
858 }
859
860 test_stripflags(){
861     log test_stripflags "$@"
862     # call check_cc to get a fresh TMPO
863     check_cc <<EOF
864 int main(void) { return 0; }
865 EOF
866     check_cmd $strip $STRIPFLAGS "$@" $TMPO
867 }
868
869 check_stripflags(){
870     log check_stripflags "$@"
871     test_stripflags "$@" && add_stripflags "$@"
872 }
873
874 check_header(){
875     log check_header "$@"
876     header=$1
877     shift
878     disable_safe $header
879     check_cpp "$@" <<EOF && enable_safe $header
880 #include <$header>
881 int x;
882 EOF
883 }
884
885 check_func(){
886     log check_func "$@"
887     func=$1
888     shift
889     disable $func
890     check_ld "$@" <<EOF && enable $func
891 extern int $func();
892 int main(void){ $func(); }
893 EOF
894 }
895
896 check_mathfunc(){
897     log check_mathfunc "$@"
898     func=$1
899     narg=$2
900     shift 2
901     test $narg = 2 && args="f, g" || args="f"
902     disable $func
903     check_ld "$@" <<EOF && enable $func
904 #include <math.h>
905 float foo(float f, float g) { return $func($args); }
906 int main(void){ return 0; }
907 EOF
908 }
909
910 check_func_headers(){
911     log check_func_headers "$@"
912     headers=$1
913     funcs=$2
914     shift 2
915     {
916         for hdr in $headers; do
917             print_include $hdr
918         done
919         for func in $funcs; do
920             echo "long check_$func(void) { return (long) $func; }"
921         done
922         echo "int main(void) { return 0; }"
923     } | check_ld "$@" && enable $funcs && enable_safe $headers
924 }
925
926 check_cpp_condition(){
927     log check_cpp_condition "$@"
928     header=$1
929     condition=$2
930     shift 2
931     check_cpp "$@" <<EOF
932 #include <$header>
933 #if !($condition)
934 #error "unsatisfied condition: $condition"
935 #endif
936 EOF
937 }
938
939 check_lib(){
940     log check_lib "$@"
941     header="$1"
942     func="$2"
943     shift 2
944     check_header $header && check_func $func "$@" && add_extralibs "$@"
945 }
946
947 check_lib2(){
948     log check_lib2 "$@"
949     headers="$1"
950     funcs="$2"
951     shift 2
952     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
953 }
954
955 check_pkg_config(){
956     log check_pkg_config "$@"
957     pkg="$1"
958     headers="$2"
959     funcs="$3"
960     shift 3
961     check_cmd $pkg_config --exists --print-errors $pkg || return
962     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
963     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
964     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
965         set_safe "${pkg}_cflags" $pkg_cflags   &&
966         set_safe "${pkg}_libs"   $pkg_libs
967 }
968
969 check_exec(){
970     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
971 }
972
973 check_exec_crash(){
974     code=$(cat)
975
976     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
977     # are safe but may not be available everywhere.  Thus we use
978     # raise(SIGTERM) instead.  The check is run in a subshell so we
979     # can redirect the "Terminated" message from the shell.  SIGBUS
980     # is not defined by standard C so it is used conditionally.
981
982     (check_exec "$@") >> $logfile 2>&1 <<EOF
983 #include <signal.h>
984 static void sighandler(int sig){
985     raise(SIGTERM);
986 }
987 int foo(void){
988     $code
989 }
990 int (*func_ptr)(void) = foo;
991 int main(void){
992     signal(SIGILL, sighandler);
993     signal(SIGFPE, sighandler);
994     signal(SIGSEGV, sighandler);
995 #ifdef SIGBUS
996     signal(SIGBUS, sighandler);
997 #endif
998     return func_ptr();
999 }
1000 EOF
1001 }
1002
1003 check_type(){
1004     log check_type "$@"
1005     headers=$1
1006     type=$2
1007     shift 2
1008     disable_safe "$type"
1009     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1010 }
1011
1012 check_struct(){
1013     log check_struct "$@"
1014     headers=$1
1015     struct=$2
1016     member=$3
1017     shift 3
1018     disable_safe "${struct}_${member}"
1019     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1020         enable_safe "${struct}_${member}"
1021 }
1022
1023 check_builtin(){
1024     log check_builtin "$@"
1025     name=$1
1026     headers=$2
1027     builtin=$3
1028     shift 3
1029     disable "$name"
1030     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1031 }
1032
1033 check_compile_assert(){
1034     log check_compile_assert "$@"
1035     name=$1
1036     headers=$2
1037     condition=$3
1038     shift 3
1039     disable "$name"
1040     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1041 }
1042
1043 require(){
1044     name="$1"
1045     header="$2"
1046     func="$3"
1047     shift 3
1048     check_lib $header $func "$@" || die "ERROR: $name not found"
1049 }
1050
1051 require2(){
1052     name="$1"
1053     headers="$2"
1054     func="$3"
1055     shift 3
1056     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1057 }
1058
1059 require_pkg_config(){
1060     pkg="$1"
1061     check_pkg_config "$@" || die "ERROR: $pkg not found"
1062     add_cflags    $(get_safe "${pkg}_cflags")
1063     add_extralibs $(get_safe "${pkg}_libs")
1064 }
1065
1066 hostcc_e(){
1067     eval printf '%s\\n' $HOSTCC_E
1068 }
1069
1070 hostcc_o(){
1071     eval printf '%s\\n' $HOSTCC_O
1072 }
1073
1074 check_host_cc(){
1075     log check_host_cc "$@"
1076     cat > $TMPC
1077     log_file $TMPC
1078     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1079 }
1080
1081 check_host_cpp(){
1082     log check_host_cpp "$@"
1083     cat > $TMPC
1084     log_file $TMPC
1085     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1086 }
1087
1088 check_host_cppflags(){
1089     log check_host_cppflags "$@"
1090     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1091 int x;
1092 EOF
1093 }
1094
1095 check_host_cflags(){
1096     log check_host_cflags "$@"
1097     set -- $($host_cflags_filter "$@")
1098     check_host_cc "$@" <<EOF && append host_cflags "$@"
1099 int x;
1100 EOF
1101 }
1102
1103 check_host_cpp_condition(){
1104     log check_host_cpp_condition "$@"
1105     header=$1
1106     condition=$2
1107     shift 2
1108     check_host_cpp "$@" <<EOF
1109 #include <$header>
1110 #if !($condition)
1111 #error "unsatisfied condition: $condition"
1112 #endif
1113 EOF
1114 }
1115
1116 apply(){
1117     file=$1
1118     shift
1119     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1120 }
1121
1122 cp_if_changed(){
1123     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1124     mkdir -p "$(dirname $2)"
1125     $cp_f "$1" "$2"
1126 }
1127
1128 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1129 # system-dependent things.
1130
1131 COMPONENT_LIST="
1132     bsfs
1133     decoders
1134     demuxers
1135     encoders
1136     filters
1137     hwaccels
1138     indevs
1139     muxers
1140     outdevs
1141     parsers
1142     protocols
1143 "
1144
1145 EXAMPLE_LIST="
1146     avcodec_example
1147     filter_audio_example
1148     metadata_example
1149     output_example
1150     qsvdec_example
1151     transcode_aac_example
1152 "
1153
1154 EXTERNAL_LIBRARY_LIST="
1155     avisynth
1156     bzlib
1157     frei0r
1158     gnutls
1159     libbs2b
1160     libcdio
1161     libdc1394
1162     libdcadec
1163     libfaac
1164     libfdk_aac
1165     libfontconfig
1166     libfreetype
1167     libgsm
1168     libilbc
1169     libmfx
1170     libmp3lame
1171     libopencore_amrnb
1172     libopencore_amrwb
1173     libopencv
1174     libopenh264
1175     libopenjpeg
1176     libopus
1177     libpulse
1178     librtmp
1179     libschroedinger
1180     libsnappy
1181     libspeex
1182     libtheora
1183     libtwolame
1184     libvo_aacenc
1185     libvo_amrwbenc
1186     libvorbis
1187     libvpx
1188     libwavpack
1189     libwebp
1190     libx264
1191     libx265
1192     libxavs
1193     libxcb
1194     libxcb_shm
1195     libxcb_xfixes
1196     libxvid
1197     mmal
1198     nvenc
1199     openssl
1200     x11grab
1201     zlib
1202 "
1203
1204 FEATURE_LIST="
1205     gray
1206     hardcoded_tables
1207     runtime_cpudetect
1208     safe_bitstream_reader
1209     shared
1210     small
1211     sram
1212     static
1213     swscale_alpha
1214 "
1215
1216 HWACCEL_LIST="
1217     d3d11va
1218     dxva2
1219     vaapi
1220     vda
1221     vdpau
1222 "
1223
1224 LIBRARY_LIST="
1225     avcodec
1226     avdevice
1227     avfilter
1228     avformat
1229     avresample
1230     avutil
1231     swscale
1232 "
1233
1234 LICENSE_LIST="
1235     gpl
1236     nonfree
1237     version3
1238 "
1239
1240 PROGRAM_LIST="
1241     avconv
1242     avplay
1243     avprobe
1244 "
1245
1246 SUBSYSTEM_LIST="
1247     dct
1248     doc
1249     error_resilience
1250     faan
1251     fft
1252     lsp
1253     lzo
1254     mdct
1255     network
1256     rdft
1257 "
1258
1259 CONFIG_LIST="
1260     $COMPONENT_LIST
1261     $EXAMPLE_LIST
1262     $EXTERNAL_LIBRARY_LIST
1263     $FEATURE_LIST
1264     $HWACCEL_LIST
1265     $LICENSE_LIST
1266     $LIBRARY_LIST
1267     $PROGRAM_LIST
1268     $SUBSYSTEM_LIST
1269     memalign_hack
1270     neon_clobber_test
1271     pic
1272     pod2man
1273     texi2html
1274     thumb
1275     valgrind_backtrace
1276     xmm_clobber_test
1277 "
1278
1279 THREADS_LIST="
1280     pthreads
1281     w32threads
1282 "
1283
1284 ATOMICS_LIST="
1285     atomics_gcc
1286     atomics_suncc
1287     atomics_win32
1288 "
1289
1290 ARCH_LIST="
1291     aarch64
1292     alpha
1293     arm
1294     avr32
1295     avr32_ap
1296     avr32_uc
1297     bfin
1298     ia64
1299     m68k
1300     mips
1301     mips64
1302     parisc
1303     ppc
1304     ppc64
1305     s390
1306     sh4
1307     sparc
1308     sparc64
1309     tilegx
1310     tilepro
1311     tomi
1312     x86
1313     x86_32
1314     x86_64
1315 "
1316
1317 ARCH_EXT_LIST_ARM="
1318     armv5te
1319     armv6
1320     armv6t2
1321     armv8
1322     neon
1323     vfp
1324     vfpv3
1325 "
1326
1327 ARCH_EXT_LIST_X86_SIMD="
1328     amd3dnow
1329     amd3dnowext
1330     avx
1331     avx2
1332     fma3
1333     fma4
1334     mmx
1335     mmxext
1336     sse
1337     sse2
1338     sse3
1339     sse4
1340     sse42
1341     ssse3
1342     xop
1343 "
1344
1345 ARCH_EXT_LIST_PPC="
1346     altivec
1347     dcbzl
1348     ldbrx
1349     power8
1350     ppc4xx
1351     vsx
1352 "
1353
1354 ARCH_EXT_LIST_X86="
1355     $ARCH_EXT_LIST_X86_SIMD
1356     cpunop
1357     i686
1358 "
1359
1360 ARCH_EXT_LIST="
1361     $ARCH_EXT_LIST_ARM
1362     $ARCH_EXT_LIST_PPC
1363     $ARCH_EXT_LIST_X86
1364     loongson
1365     vis
1366 "
1367
1368 ARCH_FEATURES="
1369     aligned_stack
1370     fast_64bit
1371     fast_clz
1372     fast_cmov
1373     local_aligned_8
1374     local_aligned_16
1375     simd_align_16
1376 "
1377
1378 BUILTIN_LIST="
1379     atomic_cas_ptr
1380     machine_rw_barrier
1381     MemoryBarrier
1382     mm_empty
1383     rdtsc
1384     sync_val_compare_and_swap
1385 "
1386 HAVE_LIST_CMDLINE="
1387     inline_asm
1388     symver
1389     yasm
1390 "
1391
1392 HAVE_LIST_PUB="
1393     bigendian
1394     fast_unaligned
1395 "
1396
1397 HEADERS_LIST="
1398     alsa_asoundlib_h
1399     altivec_h
1400     arpa_inet_h
1401     cdio_paranoia_h
1402     cdio_paranoia_paranoia_h
1403     dev_bktr_ioctl_bt848_h
1404     dev_bktr_ioctl_meteor_h
1405     dev_ic_bt8xx_h
1406     dev_video_bktr_ioctl_bt848_h
1407     dev_video_meteor_ioctl_meteor_h
1408     direct_h
1409     dlfcn_h
1410     d3d11_h
1411     dxva_h
1412     gsm_h
1413     io_h
1414     mach_mach_time_h
1415     machine_ioctl_bt848_h
1416     machine_ioctl_meteor_h
1417     malloc_h
1418     poll_h
1419     sndio_h
1420     soundcard_h
1421     sys_mman_h
1422     sys_param_h
1423     sys_resource_h
1424     sys_select_h
1425     sys_soundcard_h
1426     sys_time_h
1427     sys_un_h
1428     sys_videoio_h
1429     unistd_h
1430     valgrind_valgrind_h
1431     windows_h
1432     winsock2_h
1433 "
1434
1435 INTRINSICS_LIST="
1436     intrinsics_neon
1437 "
1438
1439 MATH_FUNCS="
1440     atanf
1441     atan2f
1442     cbrtf
1443     cosf
1444     exp2
1445     exp2f
1446     expf
1447     isinf
1448     isnan
1449     ldexpf
1450     llrint
1451     llrintf
1452     log2
1453     log2f
1454     log10f
1455     lrint
1456     lrintf
1457     powf
1458     rint
1459     round
1460     roundf
1461     sinf
1462     trunc
1463     truncf
1464 "
1465
1466 SYSTEM_FUNCS="
1467     aligned_malloc
1468     clock_gettime
1469     closesocket
1470     CommandLineToArgvW
1471     CoTaskMemFree
1472     CryptGenRandom
1473     dlopen
1474     fcntl
1475     flt_lim
1476     fork
1477     getaddrinfo
1478     gethrtime
1479     getopt
1480     GetProcessAffinityMask
1481     GetProcessMemoryInfo
1482     GetProcessTimes
1483     getrusage
1484     getservbyport
1485     GetSystemTimeAsFileTime
1486     gettimeofday
1487     gmtime_r
1488     inet_aton
1489     isatty
1490     jack_port_get_latency_range
1491     LoadLibrary
1492     localtime_r
1493     mach_absolute_time
1494     MapViewOfFile
1495     memalign
1496     mkstemp
1497     mmap
1498     mprotect
1499     nanosleep
1500     posix_memalign
1501     sched_getaffinity
1502     SetConsoleTextAttribute
1503     setmode
1504     setrlimit
1505     Sleep
1506     strerror_r
1507     sysconf
1508     sysctl
1509     usleep
1510     VirtualAlloc
1511 "
1512
1513 TOOLCHAIN_FEATURES="
1514     as_dn_directive
1515     as_func
1516     as_object_arch
1517     asm_mod_q
1518     attribute_may_alias
1519     attribute_packed
1520     ebp_available
1521     ebx_available
1522     gnu_as
1523     ibm_asm
1524     inline_asm_labels
1525     pragma_deprecated
1526     symver_asm_label
1527     symver_gnu_asm
1528     vfp_args
1529     xform_asm
1530     xmm_clobbers
1531 "
1532
1533 TYPES_LIST="
1534     CONDITION_VARIABLE_Ptr
1535     socklen_t
1536     struct_addrinfo
1537     struct_group_source_req
1538     struct_ip_mreq_source
1539     struct_ipv6_mreq
1540     struct_pollfd
1541     struct_rusage_ru_maxrss
1542     struct_sockaddr_in6
1543     struct_sockaddr_sa_len
1544     struct_sockaddr_storage
1545     struct_v4l2_frmivalenum_discrete
1546 "
1547
1548 HAVE_LIST="
1549     $ARCH_EXT_LIST
1550     $(add_suffix _external $ARCH_EXT_LIST)
1551     $(add_suffix _inline   $ARCH_EXT_LIST)
1552     $ARCH_FEATURES
1553     $ATOMICS_LIST
1554     $BUILTIN_LIST
1555     $HAVE_LIST_CMDLINE
1556     $HAVE_LIST_PUB
1557     $HEADERS_LIST
1558     $INTRINSICS_LIST
1559     $MATH_FUNCS
1560     $SYSTEM_FUNCS
1561     $THREADS_LIST
1562     $TOOLCHAIN_FEATURES
1563     $TYPES_LIST
1564     atomics_native
1565     dos_paths
1566     dxva2_lib
1567     libc_msvcrt
1568     libdc1394_1
1569     libdc1394_2
1570     sdl
1571     section_data_rel_ro
1572     threads
1573     vaapi_x11
1574     vdpau_x11
1575     xlib
1576 "
1577
1578 # options emitted with CONFIG_ prefix but not available on the command line
1579 CONFIG_EXTRA="
1580     aandcttables
1581     ac3dsp
1582     audio_frame_queue
1583     audiodsp
1584     blockdsp
1585     bswapdsp
1586     cabac
1587     dvprofile
1588     faandct
1589     faanidct
1590     fdctdsp
1591     flacdsp
1592     fmtconvert
1593     gcrypt
1594     gmp
1595     golomb
1596     gplv3
1597     h263dsp
1598     h264chroma
1599     h264dsp
1600     h264pred
1601     h264qpel
1602     hpeldsp
1603     huffman
1604     huffyuvdsp
1605     huffyuvencdsp
1606     idctdsp
1607     iirfilter
1608     imdct15
1609     intrax8
1610     ividsp
1611     jpegtables
1612     libx262
1613     lgplv3
1614     lpc
1615     me_cmp
1616     mpeg_er
1617     mpegaudio
1618     mpegaudiodsp
1619     mpegvideo
1620     mpegvideoenc
1621     mss34dsp
1622     pixblockdsp
1623     qpeldsp
1624     qsv
1625     qsvdec
1626     qsvenc
1627     rangecoder
1628     riffdec
1629     riffenc
1630     rtpdec
1631     rtpenc_chain
1632     rv34dsp
1633     sinewin
1634     snappy
1635     startcode
1636     texturedsp
1637     texturedspenc
1638     tpeldsp
1639     videodsp
1640     vp3dsp
1641     wma_freqs
1642 "
1643
1644 CMDLINE_SELECT="
1645     $ARCH_EXT_LIST
1646     $CONFIG_LIST
1647     $HAVE_LIST_CMDLINE
1648     $THREADS_LIST
1649     asm
1650     cross_compile
1651     debug
1652     extra_warnings
1653     logging
1654     lto
1655     optimizations
1656     rpath
1657 "
1658
1659 PATHS_LIST="
1660     bindir
1661     datadir
1662     docdir
1663     incdir
1664     libdir
1665     mandir
1666     prefix
1667     shlibdir
1668 "
1669
1670 CMDLINE_SET="
1671     $PATHS_LIST
1672     ar
1673     arch
1674     as
1675     build_suffix
1676     cc
1677     cpu
1678     cross_prefix
1679     dep_cc
1680     env
1681     extra_version
1682     host_cc
1683     host_cflags
1684     host_ld
1685     host_ldflags
1686     host_libs
1687     host_os
1688     ld
1689     logfile
1690     malloc_prefix
1691     nm
1692     optflags
1693     pkg_config
1694     pkg_config_flags
1695     random_seed
1696     samples
1697     sysinclude
1698     sysroot
1699     target_exec
1700     target_os
1701     target_path
1702     target_samples
1703     toolchain
1704 "
1705
1706 CMDLINE_APPEND="
1707     extra_cflags
1708     host_cppflags
1709 "
1710
1711 # code dependency declarations
1712
1713 # architecture extensions
1714
1715 armv5te_deps="arm"
1716 armv6_deps="arm"
1717 armv6t2_deps="arm"
1718 armv8_deps="aarch64"
1719 neon_deps_any="aarch64 arm"
1720 intrinsics_neon_deps="neon"
1721 vfp_deps_any="aarch64 arm"
1722 vfpv3_deps="vfp"
1723
1724 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1725
1726 altivec_deps="ppc"
1727 ppc4xx_deps="ppc"
1728 vsx_deps="altivec"
1729 power8_deps="vsx"
1730
1731 cpunop_deps="i686"
1732 x86_64_select="i686"
1733 x86_64_suggest="fast_cmov"
1734
1735 amd3dnow_deps="mmx"
1736 amd3dnowext_deps="amd3dnow"
1737 i686_deps="x86"
1738 mmx_deps="x86"
1739 mmxext_deps="mmx"
1740 sse_deps="mmxext"
1741 sse2_deps="sse"
1742 sse3_deps="sse2"
1743 ssse3_deps="sse3"
1744 sse4_deps="ssse3"
1745 sse42_deps="sse4"
1746 avx_deps="sse42"
1747 xop_deps="avx"
1748 fma3_deps="avx"
1749 fma4_deps="avx"
1750 avx2_deps="avx"
1751
1752 mmx_external_deps="yasm"
1753 mmx_inline_deps="inline_asm"
1754 mmx_suggest="mmx_external mmx_inline"
1755
1756 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1757     eval dep=\$${ext}_deps
1758     eval ${ext}_external_deps='"${dep}_external"'
1759     eval ${ext}_inline_deps='"${dep}_inline"'
1760     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1761 done
1762
1763 aligned_stack_if_any="aarch64 ppc x86"
1764 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1765 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1766 fast_unaligned_if_any="aarch64 ppc x86"
1767 simd_align_16_if_any="altivec neon sse"
1768
1769 # system capabilities
1770 symver_if_any="symver_asm_label symver_gnu_asm"
1771 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1772
1773 # threading support
1774 atomics_gcc_if="sync_val_compare_and_swap"
1775 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1776 atomics_win32_if="MemoryBarrier"
1777 atomics_native_if_any="$ATOMICS_LIST"
1778 w32threads_deps="atomics_native"
1779 threads_if_any="$THREADS_LIST"
1780
1781 # subsystems
1782 dct_select="rdft"
1783 error_resilience_select="me_cmp"
1784 faandct_deps="faan fdctdsp"
1785 faanidct_deps="faan idctdsp"
1786 intrax8_select="error_resilience"
1787 mdct_select="fft"
1788 rdft_select="fft"
1789 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1790 mpeg_er_select="error_resilience"
1791 mpegaudio_select="mpegaudiodsp"
1792 mpegaudiodsp_select="dct"
1793 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1794 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1795 nvenc_deps_any="dlopen LoadLibrary"
1796 nvenc_extralibs='$ldl'
1797 qsvdec_select="qsv"
1798 qsvenc_select="qsv"
1799
1800 # decoders / encoders
1801 aac_decoder_select="imdct15 mdct sinewin"
1802 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1803 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1804 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1805 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1806 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1807 aic_decoder_select="golomb idctdsp"
1808 alac_encoder_select="lpc"
1809 als_decoder_select="bswapdsp"
1810 amrnb_decoder_select="lsp"
1811 amrwb_decoder_select="lsp"
1812 amv_decoder_select="sp5x_decoder"
1813 ape_decoder_select="bswapdsp"
1814 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1815 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1816 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1817 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1818 atrac1_decoder_select="mdct sinewin"
1819 atrac3_decoder_select="mdct"
1820 atrac3p_decoder_select="mdct sinewin"
1821 bink_decoder_select="blockdsp hpeldsp"
1822 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1823 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1824 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1825 cllc_decoder_select="bswapdsp"
1826 comfortnoise_encoder_select="lpc"
1827 cook_decoder_select="audiodsp mdct sinewin"
1828 cscd_decoder_select="lzo"
1829 cscd_decoder_suggest="zlib"
1830 dca_decoder_select="fmtconvert mdct"
1831 dds_decoder_select="texturedsp"
1832 dnxhd_decoder_select="blockdsp idctdsp"
1833 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1834 dvvideo_decoder_select="dvprofile idctdsp"
1835 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1836 dxa_decoder_deps="zlib"
1837 eac3_decoder_select="ac3_decoder"
1838 eac3_encoder_select="ac3_encoder"
1839 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1840 eatgq_decoder_select="aandcttables idctdsp"
1841 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1842 exr_decoder_deps="zlib"
1843 ffv1_decoder_select="golomb rangecoder"
1844 ffv1_encoder_select="rangecoder"
1845 ffvhuff_decoder_select="huffyuv_decoder"
1846 ffvhuff_encoder_select="huffyuv_encoder"
1847 fic_decoder_select="golomb"
1848 flac_decoder_select="flacdsp golomb"
1849 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1850 flashsv_decoder_deps="zlib"
1851 flashsv_encoder_deps="zlib"
1852 flashsv2_decoder_deps="zlib"
1853 flv_decoder_select="h263_decoder"
1854 flv_encoder_select="h263_encoder"
1855 fourxm_decoder_select="blockdsp bswapdsp"
1856 fraps_decoder_select="bswapdsp huffman"
1857 g2m_decoder_deps="zlib"
1858 g2m_decoder_select="blockdsp idctdsp jpegtables"
1859 h261_decoder_select="mpeg_er mpegvideo"
1860 h261_encoder_select="aandcttables mpegvideoenc"
1861 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1862 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1863 h263i_decoder_select="h263_decoder"
1864 h263p_encoder_select="h263_encoder"
1865 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1866 h264_decoder_suggest="error_resilience"
1867 h264_nvenc_encoder_deps="nvenc"
1868 h264_qsv_decoder_deps="libmfx"
1869 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1870 h264_qsv_encoder_deps="libmfx"
1871 h264_qsv_encoder_select="qsvenc"
1872 hap_decoder_select="snappy texturedsp"
1873 hap_encoder_deps="libsnappy"
1874 hap_encoder_select="texturedspenc"
1875 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1876 hevc_nvenc_encoder_deps="nvenc"
1877 hevc_qsv_encoder_deps="libmfx"
1878 hevc_qsv_encoder_select="qsvenc"
1879 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1880 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1881 iac_decoder_select="imc_decoder"
1882 imc_decoder_select="bswapdsp fft mdct sinewin"
1883 indeo3_decoder_select="hpeldsp"
1884 indeo4_decoder_select="ividsp"
1885 indeo5_decoder_select="ividsp"
1886 interplay_video_decoder_select="hpeldsp"
1887 jpegls_decoder_select="golomb mjpeg_decoder"
1888 jpegls_encoder_select="golomb"
1889 jv_decoder_select="blockdsp"
1890 lagarith_decoder_select="huffyuvdsp"
1891 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1892 loco_decoder_select="golomb"
1893 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1894 metasound_decoder_select="lsp mdct sinewin"
1895 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1896 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1897 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1898 mjpegb_decoder_select="mjpeg_decoder"
1899 mlp_decoder_select="mlp_parser"
1900 motionpixels_decoder_select="bswapdsp"
1901 mp1_decoder_select="mpegaudio"
1902 mp1float_decoder_select="mpegaudio"
1903 mp2_decoder_select="mpegaudio"
1904 mp2float_decoder_select="mpegaudio"
1905 mp3_decoder_select="mpegaudio"
1906 mp3adu_decoder_select="mpegaudio"
1907 mp3adufloat_decoder_select="mpegaudio"
1908 mp3float_decoder_select="mpegaudio"
1909 mp3on4_decoder_select="mpegaudio"
1910 mp3on4float_decoder_select="mpegaudio"
1911 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1912 mpc8_decoder_select="mpegaudiodsp"
1913 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1914 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1915 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1916 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1917 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1918 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1919 mpeg2_qsv_encoder_deps="libmfx"
1920 mpeg2_qsv_encoder_select="qsvenc"
1921 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1922 mpeg4_encoder_select="h263_encoder"
1923 msa1_decoder_select="mss34dsp"
1924 msmpeg4v1_decoder_select="h263_decoder"
1925 msmpeg4v2_decoder_select="h263_decoder"
1926 msmpeg4v2_encoder_select="h263_encoder"
1927 msmpeg4v3_decoder_select="h263_decoder"
1928 msmpeg4v3_encoder_select="h263_encoder"
1929 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1930 mts2_decoder_select="mss34dsp"
1931 mxpeg_decoder_select="mjpeg_decoder"
1932 nellymoser_decoder_select="mdct sinewin"
1933 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1934 nuv_decoder_select="idctdsp lzo"
1935 on2avc_decoder_select="mdct"
1936 opus_decoder_deps="avresample"
1937 opus_decoder_select="imdct15"
1938 png_decoder_deps="zlib"
1939 png_encoder_deps="zlib"
1940 png_encoder_select="huffyuvencdsp"
1941 prores_decoder_select="idctdsp"
1942 prores_encoder_select="fdctdsp"
1943 qcelp_decoder_select="lsp"
1944 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1945 ra_144_encoder_select="audio_frame_queue lpc"
1946 ralf_decoder_select="golomb"
1947 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1948 rv10_encoder_select="h263_encoder"
1949 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1950 rv20_encoder_select="h263_encoder"
1951 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1952 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1953 shorten_decoder_select="golomb"
1954 sipr_decoder_select="lsp"
1955 sp5x_decoder_select="mjpeg_decoder"
1956 svq1_decoder_select="hpeldsp"
1957 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1958 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1959 svq3_decoder_suggest="zlib"
1960 tak_decoder_select="audiodsp"
1961 tdsc_decoder_deps="zlib"
1962 tdsc_decoder_select="mjpeg_decoder"
1963 theora_decoder_select="vp3_decoder"
1964 thp_decoder_select="mjpeg_decoder"
1965 tiff_decoder_suggest="zlib"
1966 tiff_encoder_suggest="zlib"
1967 truehd_decoder_select="mlp_decoder"
1968 truemotion2_decoder_select="bswapdsp"
1969 truespeech_decoder_select="bswapdsp"
1970 tscc_decoder_deps="zlib"
1971 txd_decoder_select="texturedsp"
1972 twinvq_decoder_select="mdct lsp sinewin"
1973 utvideo_decoder_select="bswapdsp"
1974 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1975 vble_decoder_select="huffyuvdsp"
1976 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1977 vc1image_decoder_select="vc1_decoder"
1978 vorbis_decoder_select="mdct"
1979 vorbis_encoder_select="mdct"
1980 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1981 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1982 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1983 vp6a_decoder_select="vp6_decoder"
1984 vp6f_decoder_select="vp6_decoder"
1985 vp7_decoder_select="h264pred videodsp"
1986 vp8_decoder_select="h264pred videodsp"
1987 vp9_decoder_select="videodsp"
1988 webp_decoder_select="vp8_decoder"
1989 wmapro_decoder_select="mdct sinewin wma_freqs"
1990 wmav1_decoder_select="mdct sinewin wma_freqs"
1991 wmav1_encoder_select="mdct sinewin wma_freqs"
1992 wmav2_decoder_select="mdct sinewin wma_freqs"
1993 wmav2_encoder_select="mdct sinewin wma_freqs"
1994 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1995 wmv1_decoder_select="h263_decoder"
1996 wmv1_encoder_select="h263_encoder"
1997 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
1998 wmv2_encoder_select="h263_encoder"
1999 wmv3_decoder_select="vc1_decoder"
2000 wmv3image_decoder_select="wmv3_decoder"
2001 zerocodec_decoder_deps="zlib"
2002 zlib_decoder_deps="zlib"
2003 zlib_encoder_deps="zlib"
2004 zmbv_decoder_deps="zlib"
2005 zmbv_encoder_deps="zlib"
2006
2007 # hardware accelerators
2008 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2009 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2010 vaapi_deps="va_va_h"
2011 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2012 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2013 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2014
2015 h263_vaapi_hwaccel_deps="vaapi"
2016 h263_vaapi_hwaccel_select="h263_decoder"
2017 h263_vdpau_hwaccel_deps="vdpau"
2018 h263_vdpau_hwaccel_select="h263_decoder"
2019 h264_d3d11va_hwaccel_deps="d3d11va"
2020 h264_d3d11va_hwaccel_select="h264_decoder"
2021 h264_dxva2_hwaccel_deps="dxva2"
2022 h264_dxva2_hwaccel_select="h264_decoder"
2023 h264_mmal_decoder_deps="mmal"
2024 h264_mmal_hwaccel_deps="mmal"
2025 h264_mmal_decoder_select="h264_decoder"
2026 h264_mmal_encoder_deps="mmal"
2027 h264_qsv_hwaccel_deps="libmfx"
2028 h264_vaapi_hwaccel_deps="vaapi"
2029 h264_vaapi_hwaccel_select="h264_decoder"
2030 h264_vda_hwaccel_deps="vda"
2031 h264_vda_hwaccel_select="h264_decoder"
2032 h264_vda_old_hwaccel_deps="vda"
2033 h264_vda_old_hwaccel_select="h264_decoder"
2034 h264_vdpau_hwaccel_deps="vdpau"
2035 h264_vdpau_hwaccel_select="h264_decoder"
2036 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2037 hevc_d3d11va_hwaccel_select="hevc_decoder"
2038 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2039 hevc_dxva2_hwaccel_select="hevc_decoder"
2040 mpeg1_vdpau_hwaccel_deps="vdpau"
2041 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2042 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2043 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2044 mpeg2_dxva2_hwaccel_deps="dxva2"
2045 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2046 mpeg2_vaapi_hwaccel_deps="vaapi"
2047 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2048 mpeg2_vdpau_hwaccel_deps="vdpau"
2049 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2050 mpeg4_vaapi_hwaccel_deps="vaapi"
2051 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2052 mpeg4_vdpau_hwaccel_deps="vdpau"
2053 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2054 vc1_d3d11va_hwaccel_deps="d3d11va"
2055 vc1_d3d11va_hwaccel_select="vc1_decoder"
2056 vc1_dxva2_hwaccel_deps="dxva2"
2057 vc1_dxva2_hwaccel_select="vc1_decoder"
2058 vc1_vaapi_hwaccel_deps="vaapi"
2059 vc1_vaapi_hwaccel_select="vc1_decoder"
2060 vc1_vdpau_hwaccel_deps="vdpau"
2061 vc1_vdpau_hwaccel_select="vc1_decoder"
2062 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2063 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2064 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2065 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2066
2067 # parsers
2068 h264_parser_select="h264_decoder"
2069 hevc_parser_select="golomb"
2070 mpegvideo_parser_select="mpegvideo"
2071 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2072 vc1_parser_select="mpegvideo startcode vc1_decoder"
2073
2074 # bitstream_filters
2075 mjpeg2jpeg_bsf_select="jpegtables"
2076
2077 # external libraries
2078 libdcadec_decoder_deps="libdcadec"
2079 libfaac_encoder_deps="libfaac"
2080 libfaac_encoder_select="audio_frame_queue"
2081 libfdk_aac_decoder_deps="libfdk_aac"
2082 libfdk_aac_encoder_deps="libfdk_aac"
2083 libfdk_aac_encoder_select="audio_frame_queue"
2084 libgsm_decoder_deps="libgsm"
2085 libgsm_encoder_deps="libgsm"
2086 libgsm_ms_decoder_deps="libgsm"
2087 libgsm_ms_encoder_deps="libgsm"
2088 libilbc_decoder_deps="libilbc"
2089 libilbc_encoder_deps="libilbc"
2090 libmp3lame_encoder_deps="libmp3lame"
2091 libmp3lame_encoder_select="audio_frame_queue"
2092 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2093 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2094 libopencore_amrnb_encoder_select="audio_frame_queue"
2095 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2096 libopenh264_encoder_deps="libopenh264"
2097 libopenjpeg_decoder_deps="libopenjpeg"
2098 libopenjpeg_encoder_deps="libopenjpeg"
2099 libopus_decoder_deps="libopus"
2100 libopus_encoder_deps="libopus"
2101 libopus_encoder_select="audio_frame_queue"
2102 libschroedinger_decoder_deps="libschroedinger"
2103 libschroedinger_encoder_deps="libschroedinger"
2104 libspeex_decoder_deps="libspeex"
2105 libspeex_encoder_deps="libspeex"
2106 libspeex_encoder_select="audio_frame_queue"
2107 libtheora_encoder_deps="libtheora"
2108 libtwolame_encoder_deps="libtwolame"
2109 libvo_aacenc_encoder_deps="libvo_aacenc"
2110 libvo_aacenc_encoder_select="audio_frame_queue"
2111 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2112 libvorbis_encoder_deps="libvorbis"
2113 libvorbis_encoder_select="audio_frame_queue"
2114 libvpx_vp8_decoder_deps="libvpx"
2115 libvpx_vp8_encoder_deps="libvpx"
2116 libvpx_vp9_decoder_deps="libvpx"
2117 libvpx_vp9_encoder_deps="libvpx"
2118 libwavpack_encoder_deps="libwavpack"
2119 libwebp_encoder_deps="libwebp"
2120 libx262_encoder_deps="libx262"
2121 libx264_encoder_deps="libx264"
2122 libx265_encoder_deps="libx265"
2123 libxavs_encoder_deps="libxavs"
2124 libxvid_encoder_deps="libxvid"
2125
2126 # demuxers / muxers
2127 ac3_demuxer_select="ac3_parser"
2128 asf_demuxer_select="riffdec"
2129 asf_muxer_select="riffenc"
2130 asf_stream_muxer_select="asf_muxer"
2131 avi_demuxer_select="riffdec"
2132 avi_muxer_select="riffenc"
2133 avisynth_demuxer_deps="avisynth"
2134 avisynth_demuxer_select="riffdec"
2135 caf_demuxer_select="riffdec"
2136 dash_muxer_select="mp4_muxer"
2137 dirac_demuxer_select="dirac_parser"
2138 dv_demuxer_select="dvprofile"
2139 dv_muxer_select="dvprofile"
2140 dxa_demuxer_select="riffdec"
2141 eac3_demuxer_select="ac3_parser"
2142 f4v_muxer_select="mov_muxer"
2143 flac_demuxer_select="flac_parser"
2144 hds_muxer_select="flv_muxer"
2145 hls_muxer_select="mpegts_muxer"
2146 ipod_muxer_select="mov_muxer"
2147 ismv_muxer_select="mov_muxer"
2148 matroska_audio_muxer_select="matroska_muxer"
2149 matroska_demuxer_select="riffdec"
2150 matroska_demuxer_suggest="bzlib lzo zlib"
2151 matroska_muxer_select="riffenc"
2152 mmf_muxer_select="riffenc"
2153 mov_demuxer_select="riffdec"
2154 mov_demuxer_suggest="zlib"
2155 mov_muxer_select="riffenc rtpenc_chain"
2156 mp3_demuxer_select="mpegaudio_parser"
2157 mp4_muxer_select="mov_muxer"
2158 mpegts_muxer_select="adts_muxer latm_muxer"
2159 mpegtsraw_demuxer_select="mpegts_demuxer"
2160 mxf_d10_muxer_select="mxf_muxer"
2161 nut_muxer_select="riffenc"
2162 nuv_demuxer_select="riffdec"
2163 oga_muxer_select="ogg_muxer"
2164 ogg_demuxer_select="golomb"
2165 opus_muxer_select="ogg_muxer"
2166 psp_muxer_select="mov_muxer"
2167 rtp_demuxer_select="sdp_demuxer"
2168 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2169 rtsp_demuxer_select="http_protocol rtpdec"
2170 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2171 sap_demuxer_select="sdp_demuxer"
2172 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2173 sdp_demuxer_select="rtpdec"
2174 smoothstreaming_muxer_select="ismv_muxer"
2175 spdif_muxer_select="aac_parser"
2176 spx_muxer_select="ogg_muxer"
2177 tak_demuxer_select="tak_parser"
2178 tg2_muxer_select="mov_muxer"
2179 tgp_muxer_select="mov_muxer"
2180 w64_demuxer_select="wav_demuxer"
2181 wav_demuxer_select="riffdec"
2182 wav_muxer_select="riffenc"
2183 webm_muxer_select="riffenc"
2184 wtv_demuxer_select="riffdec"
2185 xmv_demuxer_select="riffdec"
2186 xwma_demuxer_select="riffdec"
2187
2188 # indevs / outdevs
2189 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2190 alsa_outdev_deps="alsa_asoundlib_h"
2191 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2192 dv1394_indev_deps="dv1394"
2193 dv1394_indev_select="dv_demuxer"
2194 fbdev_indev_deps="linux_fb_h"
2195 jack_indev_deps="jack_jack_h pthreads"
2196 libcdio_indev_deps="libcdio"
2197 libdc1394_indev_deps="libdc1394"
2198 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2199 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2200 pulse_indev_deps="libpulse"
2201 sndio_indev_deps="sndio_h"
2202 sndio_outdev_deps="sndio_h"
2203 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2204 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2205 vfwcap_indev_extralibs="-lavicap32"
2206 x11grab_indev_deps="x11grab"
2207 x11grab_xcb_indev_deps="libxcb"
2208
2209 # protocols
2210 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2211 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2212 ffrtmpcrypt_protocol_select="tcp_protocol"
2213 ffrtmphttp_protocol_deps="!librtmp_protocol"
2214 ffrtmphttp_protocol_select="http_protocol"
2215 gopher_protocol_select="network"
2216 http_protocol_select="tcp_protocol"
2217 httpproxy_protocol_select="tcp_protocol"
2218 https_protocol_select="tls_protocol"
2219 icecast_protocol_select="http_protocol"
2220 librtmp_protocol_deps="librtmp"
2221 librtmpe_protocol_deps="librtmp"
2222 librtmps_protocol_deps="librtmp"
2223 librtmpt_protocol_deps="librtmp"
2224 librtmpte_protocol_deps="librtmp"
2225 mmsh_protocol_select="http_protocol"
2226 mmst_protocol_select="network"
2227 rtmp_protocol_deps="!librtmp_protocol"
2228 rtmp_protocol_select="tcp_protocol"
2229 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2230 rtmps_protocol_deps="!librtmp_protocol"
2231 rtmps_protocol_select="tls_protocol"
2232 rtmpt_protocol_select="ffrtmphttp_protocol"
2233 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2234 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2235 rtp_protocol_select="udp_protocol"
2236 sctp_protocol_deps="struct_sctp_event_subscribe"
2237 sctp_protocol_select="network"
2238 srtp_protocol_select="rtp_protocol"
2239 tcp_protocol_select="network"
2240 tls_gnutls_protocol_deps="gnutls"
2241 tls_gnutls_protocol_select="tcp_protocol"
2242 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2243 tls_openssl_protocol_select="tcp_protocol"
2244 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2245 udp_protocol_select="network"
2246 unix_protocol_deps="sys_un_h"
2247 unix_protocol_select="network"
2248
2249 # filters
2250 blackframe_filter_deps="gpl"
2251 boxblur_filter_deps="gpl"
2252 bs2b_filter_deps="libbs2b"
2253 cropdetect_filter_deps="gpl"
2254 delogo_filter_deps="gpl"
2255 drawtext_filter_deps="libfreetype"
2256 frei0r_filter_deps="frei0r dlopen"
2257 frei0r_filter_extralibs='$ldl'
2258 frei0r_src_filter_deps="frei0r dlopen"
2259 frei0r_src_filter_extralibs='$ldl'
2260 hqdn3d_filter_deps="gpl"
2261 interlace_filter_deps="gpl"
2262 ocv_filter_deps="libopencv"
2263 resample_filter_deps="avresample"
2264 scale_filter_deps="swscale"
2265
2266 # examples
2267 avcodec_example_deps="avcodec avutil"
2268 filter_audio_example_deps="avfilter avutil"
2269 metadata_example_deps="avformat avutil"
2270 output_example_deps="avcodec avformat avutil swscale"
2271 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2272 transcode_aac_example_deps="avcodec avformat avresample"
2273
2274 # libraries, in linking order
2275 avcodec_deps="avutil"
2276 avdevice_deps="avformat avcodec avutil"
2277 avfilter_deps="avutil"
2278 avformat_deps="avcodec avutil"
2279 avresample_deps="avutil"
2280 swscale_deps="avutil"
2281
2282 # programs
2283 avconv_deps="avcodec avfilter avformat avresample swscale"
2284 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2285                fps_filter null_filter resample_filter scale_filter
2286                setpts_filter trim_filter"
2287 avplay_deps="avcodec avformat avresample swscale sdl"
2288 avplay_libs='$sdl_libs'
2289 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2290 avprobe_deps="avcodec avformat"
2291
2292 # documentation
2293 pod2man_deps="doc"
2294 texi2html_deps="doc"
2295
2296 # default parameters
2297
2298 logfile="config.log"
2299
2300 # installation paths
2301 prefix_default="/usr/local"
2302 bindir_default='${prefix}/bin'
2303 datadir_default='${prefix}/share/avconv'
2304 docdir_default='${prefix}/share/doc/libav'
2305 incdir_default='${prefix}/include'
2306 libdir_default='${prefix}/lib'
2307 mandir_default='${prefix}/share/man'
2308 shlibdir_default="$libdir_default"
2309
2310 # toolchain
2311 ar_default="ar"
2312 cc_default="gcc"
2313 host_cc_default="gcc"
2314 cp_f="cp -f"
2315 ln_s="ln -s -f"
2316 nm_default="nm -g"
2317 objformat="elf"
2318 pkg_config_default=pkg-config
2319 ranlib="ranlib"
2320 strip="strip"
2321 yasmexe="yasm"
2322
2323 # machine
2324 arch_default=$(uname -m)
2325 cpu="generic"
2326 intrinsics="none"
2327
2328 # OS
2329 target_os_default=$(tolower $(uname -s))
2330 host_os=$target_os_default
2331
2332 # configurable options
2333 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2334
2335 enable asm
2336 enable debug
2337 enable doc
2338 enable faan faandct faanidct
2339 enable optimizations
2340 enable safe_bitstream_reader
2341 enable static
2342 enable swscale_alpha
2343 enable valgrind_backtrace
2344
2345 # By default, enable only those hwaccels that have no external dependencies.
2346 enable d3d11va dxva2 vda vdpau
2347
2348 # build settings
2349 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2350 LIBPREF="lib"
2351 LIBSUF=".a"
2352 FULLNAME='$(NAME)$(BUILDSUF)'
2353 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2354 SLIBPREF="lib"
2355 SLIBSUF=".so"
2356 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2357 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2358 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2359 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2360 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2361 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2362
2363 asflags_filter=echo
2364 cflags_filter=echo
2365 ldflags_filter=echo
2366
2367 AS_C='-c'
2368 AS_O='-o $@'
2369 CC_C='-c'
2370 CC_E='-E -o $@'
2371 CC_O='-o $@'
2372 LD_O='-o $@'
2373 LD_LIB='-l%'
2374 LD_PATH='-L'
2375 HOSTCC_C='-c'
2376 HOSTCC_E='-E -o $@'
2377 HOSTCC_O='-o $@'
2378 HOSTLD_O='-o $@'
2379
2380 host_libs='-lm'
2381 host_cflags_filter=echo
2382 host_ldflags_filter=echo
2383
2384 target_path='$(CURDIR)'
2385
2386 # since the object filename is not given with the -MM flag, the compiler
2387 # is only able to print the basename, and we must add the path ourselves
2388 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2389 DEPFLAGS='-MM'
2390
2391 # find source path
2392 if test -f configure; then
2393     source_path=.
2394 else
2395     source_path=$(cd $(dirname "$0"); pwd)
2396     echo "$source_path" | grep -q '[[:blank:]]' &&
2397         die "Out of tree builds are impossible with whitespace in source path."
2398     test -e "$source_path/config.h" &&
2399         die "Out of tree builds are impossible with config.h in source dir."
2400 fi
2401
2402 for v in "$@"; do
2403     r=${v#*=}
2404     l=${v%"$r"}
2405     r=$(sh_quote "$r")
2406     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2407 done
2408
2409 find_things(){
2410     thing=$1
2411     pattern=$2
2412     file=$source_path/$3
2413     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2414 }
2415
2416 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2417 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2418 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2419 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2420 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2421 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2422 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2423 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2424 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2425 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2426 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2427
2428 ALL_COMPONENTS="
2429     $BSF_LIST
2430     $DECODER_LIST
2431     $DEMUXER_LIST
2432     $ENCODER_LIST
2433     $FILTER_LIST
2434     $HWACCEL_LIST
2435     $INDEV_LIST
2436     $MUXER_LIST
2437     $OUTDEV_LIST
2438     $PARSER_LIST
2439     $PROTOCOL_LIST
2440 "
2441
2442 for n in $COMPONENT_LIST; do
2443     v=$(toupper ${n%s})_LIST
2444     eval enable \$$v
2445     eval ${n}_if_any="\$$v"
2446 done
2447
2448 enable $ARCH_EXT_LIST
2449
2450 die_unknown(){
2451     echo "Unknown option \"$1\"."
2452     echo "See $0 --help for available options."
2453     exit 1
2454 }
2455
2456 print_3_columns() {
2457     cat | tr ' ' '\n' | sort | pr -r -3 -t
2458 }
2459
2460 show_list() {
2461     suffix=_$1
2462     shift
2463     echo $* | sed s/$suffix//g | print_3_columns
2464     exit 0
2465 }
2466
2467 rand_list(){
2468     IFS=', '
2469     set -- $*
2470     unset IFS
2471     for thing; do
2472         comp=${thing%:*}
2473         prob=${thing#$comp}
2474         prob=${prob#:}
2475         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2476         echo "prob ${prob:-0.5}"
2477         printf '%s\n' $comp
2478     done
2479 }
2480
2481 do_random(){
2482     action=$1
2483     shift
2484     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2485     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2486 }
2487
2488 for opt do
2489     optval="${opt#*=}"
2490     case "$opt" in
2491         --extra-ldflags=*)
2492             add_ldflags $optval
2493         ;;
2494         --extra-ldexeflags=*)
2495             add_ldexeflags $optval
2496         ;;
2497         --extra-libs=*)
2498             add_extralibs $optval
2499         ;;
2500         --disable-devices)
2501             disable $INDEV_LIST $OUTDEV_LIST
2502         ;;
2503         --enable-debug=*)
2504             debuglevel="$optval"
2505         ;;
2506         --disable-programs)
2507             disable $PROGRAM_LIST
2508         ;;
2509         --disable-everything)
2510             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2511         ;;
2512         --disable-all)
2513             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2514             disable $LIBRARY_LIST $PROGRAM_LIST doc
2515         ;;
2516         --enable-random|--disable-random)
2517             action=${opt%%-random}
2518             do_random ${action#--} $COMPONENT_LIST
2519         ;;
2520         --enable-random=*|--disable-random=*)
2521             action=${opt%%-random=*}
2522             do_random ${action#--} $optval
2523         ;;
2524         --enable-*=*|--disable-*=*)
2525             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2526             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2527             eval list=\$$(toupper $thing)_LIST
2528             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2529             $action $(filter "$name" $list)
2530         ;;
2531         --enable-avserver|--disable-avserver*)
2532             warn "avserver has been removed, the ${opt} option is only"\
2533                  "provided for compatibility and will be removed in the future"
2534         ;;
2535         --enable-?*|--disable-?*)
2536             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2537             if is_in $option $COMPONENT_LIST; then
2538                 test $action = disable && action=unset
2539                 eval $action \$$(toupper ${option%s})_LIST
2540             elif is_in $option $CMDLINE_SELECT; then
2541                 $action $option
2542             else
2543                 die_unknown $opt
2544             fi
2545         ;;
2546         --list-*)
2547             NAME="${opt#--list-}"
2548             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2549             NAME=${NAME%s}
2550             eval show_list $NAME \$$(toupper $NAME)_LIST
2551         ;;
2552         --help|-h) show_help
2553         ;;
2554         *)
2555             optname="${opt%%=*}"
2556             optname="${optname#--}"
2557             optname=$(echo "$optname" | sed 's/-/_/g')
2558             if is_in $optname $CMDLINE_SET; then
2559                 eval $optname='$optval'
2560             elif is_in $optname $CMDLINE_APPEND; then
2561                 append $optname "$optval"
2562             else
2563                 die_unknown $opt
2564             fi
2565         ;;
2566     esac
2567 done
2568
2569 for e in $env; do
2570     eval "export $e"
2571 done
2572
2573 disabled logging && logfile=/dev/null
2574
2575 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2576 set >> $logfile
2577
2578 case "$toolchain" in
2579     clang-asan)
2580         cc_default="clang"
2581         add_cflags  -fsanitize=address
2582         add_ldflags -fsanitize=address
2583     ;;
2584     clang-tsan)
2585         cc_default="clang"
2586         add_cflags  -fsanitize=thread -pie
2587         add_ldflags -fsanitize=thread -pie
2588     ;;
2589     clang-usan)
2590         cc_default="clang"
2591         add_cflags  -fsanitize=undefined -O1
2592         add_ldflags -fsanitize=undefined
2593     ;;
2594     gcc-asan)
2595         cc_default="gcc"
2596         add_cflags  -fsanitize=address
2597         add_ldflags -fsanitize=address
2598     ;;
2599     gcc-tsan)
2600         cc_default="gcc"
2601         add_cflags  -fsanitize=thread -pie -fPIC
2602         add_ldflags -fsanitize=thread -pie -fPIC
2603     ;;
2604     gcc-usan)
2605         cc_default="gcc"
2606         add_cflags  -fsanitize=undefined
2607         add_ldflags -fsanitize=undefined
2608     ;;
2609     valgrind-massif)
2610         target_exec_default="valgrind"
2611         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2612     ;;
2613     valgrind-memcheck)
2614         target_exec_default="valgrind"
2615         target_exec_args="--track-origins=yes --leak-check=full"
2616     ;;
2617     msvc)
2618         # Check whether the current MSVC version needs the C99 converter.
2619         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2620         # support enough of C99 to build libav. Default to the new
2621         # behaviour if the regexp was unable to match anything, since this
2622         # successfully parses the version number of existing supported
2623         # versions that require the converter (MSVC 2010 and 2012).
2624         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2625         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2626             cc_default="cl"
2627         else
2628             cc_default="c99wrap cl"
2629         fi
2630         ld_default="link"
2631         nm_default="dumpbin -symbols"
2632         ar_default="lib"
2633         target_os_default="win32"
2634         # Use a relative path for TMPDIR. This makes sure all the
2635         # ffconf temp files are written with a relative path, avoiding
2636         # issues with msys/win32 path conversion for MSVC parameters
2637         # such as -Fo<file> or -out:<file>.
2638         TMPDIR=.
2639     ;;
2640     icl)
2641         cc_default="icl"
2642         ld_default="xilink"
2643         nm_default="dumpbin -symbols"
2644         ar_default="xilib"
2645         target_os_default="win32"
2646         TMPDIR=.
2647     ;;
2648     gcov)
2649         add_cflags  -fprofile-arcs -ftest-coverage
2650         add_ldflags -fprofile-arcs -ftest-coverage
2651     ;;
2652     hardened)
2653         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2654         add_cflags   -fno-strict-overflow -fstack-protector-all
2655         add_ldflags  -Wl,-z,relro -Wl,-z,now
2656     ;;
2657     ?*)
2658         die "Unknown toolchain $toolchain"
2659     ;;
2660 esac
2661
2662 test -n "$cross_prefix" && enable cross_compile
2663
2664 if enabled cross_compile; then
2665     test -n "$arch" && test -n "$target_os" ||
2666         die "Must specify target arch and OS when cross-compiling"
2667 fi
2668
2669 ar_default="${cross_prefix}${ar_default}"
2670 cc_default="${cross_prefix}${cc_default}"
2671 nm_default="${cross_prefix}${nm_default}"
2672 pkg_config_default="${cross_prefix}${pkg_config_default}"
2673 ranlib="${cross_prefix}${ranlib}"
2674 strip="${cross_prefix}${strip}"
2675
2676 sysinclude_default="${sysroot}/usr/include"
2677
2678 set_default arch cc pkg_config sysinclude target_exec target_os
2679 enabled cross_compile || host_cc_default=$cc
2680 set_default host_cc
2681
2682 if ! $pkg_config --version >/dev/null 2>&1; then
2683     warn "$pkg_config not found, library detection may fail."
2684     pkg_config=false
2685 fi
2686
2687 exesuf() {
2688     case $1 in
2689         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2690     esac
2691 }
2692
2693 EXESUF=$(exesuf $target_os)
2694 HOSTEXESUF=$(exesuf $host_os)
2695
2696 # set temporary file name
2697 : ${TMPDIR:=$TEMPDIR}
2698 : ${TMPDIR:=$TMP}
2699 : ${TMPDIR:=/tmp}
2700
2701 if ! check_cmd mktemp -u XXXXXX; then
2702     # simple replacement for missing mktemp
2703     # NOT SAFE FOR GENERAL USE
2704     mktemp(){
2705         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2706     }
2707 fi
2708
2709 tmpfile(){
2710     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2711         (set -C; exec > $tmp) 2>/dev/null ||
2712         die "Unable to create temporary file in $TMPDIR."
2713     append TMPFILES $tmp
2714     eval $1=$tmp
2715 }
2716
2717 trap 'rm -f -- $TMPFILES' EXIT
2718
2719 tmpfile TMPASM .asm
2720 tmpfile TMPC   .c
2721 tmpfile TMPE   $EXESUF
2722 tmpfile TMPH   .h
2723 tmpfile TMPO   .o
2724 tmpfile TMPS   .S
2725 tmpfile TMPSH  .sh
2726 tmpfile TMPV   .ver
2727
2728 unset -f mktemp
2729
2730 chmod +x $TMPE
2731
2732 # make sure we can execute files in $TMPDIR
2733 cat > $TMPSH 2>> $logfile <<EOF
2734 #! /bin/sh
2735 EOF
2736 chmod +x $TMPSH >> $logfile 2>&1
2737 if ! $TMPSH >> $logfile 2>&1; then
2738     cat <<EOF
2739 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2740 variable to another directory and make sure that it is not mounted noexec.
2741 EOF
2742     die "Sanity test failed."
2743 fi
2744
2745 armasm_flags(){
2746     for flag; do
2747         case $flag in
2748             # Filter out MSVC cl.exe options from cflags that shouldn't
2749             # be passed to gas-preprocessor
2750             -M[TD]*)                                            ;;
2751             *)                  echo $flag                      ;;
2752         esac
2753    done
2754 }
2755
2756 ccc_flags(){
2757     for flag; do
2758         case $flag in
2759             -std=c99)           echo -c99                       ;;
2760             -mcpu=*)            echo -arch ${flag#*=}           ;;
2761             -mieee)             echo -ieee                      ;;
2762             -O*|-fast)          echo $flag                      ;;
2763             -fno-math-errno)    echo -assume nomath_errno       ;;
2764             -g)                 echo -g3                        ;;
2765             -Wall)              echo -msg_enable level2         ;;
2766             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2767             -Wl,*)              echo $flag                      ;;
2768             -f*|-W*)                                            ;;
2769             *)                  echo $flag                      ;;
2770         esac
2771    done
2772 }
2773
2774 cparser_flags(){
2775     for flag; do
2776         case $flag in
2777             -Wno-switch)             echo -Wno-switch-enum ;;
2778             -Wno-format-zero-length) ;;
2779             -Wdisabled-optimization) ;;
2780             -Wno-pointer-sign)       echo -Wno-other ;;
2781             *)                       echo $flag ;;
2782         esac
2783     done
2784 }
2785
2786 msvc_common_flags(){
2787     for flag; do
2788         case $flag in
2789             # In addition to specifying certain flags under the compiler
2790             # specific filters, they must be specified here as well or else the
2791             # generic catch all at the bottom will print the original flag.
2792             -Wall)                ;;
2793             -std=c99)             ;;
2794             # Common flags
2795             -fomit-frame-pointer) ;;
2796             -g)                   echo -Z7 ;;
2797             -fno-math-errno)      ;;
2798             -fno-common)          ;;
2799             -fno-signed-zeros)    ;;
2800             -fPIC)                ;;
2801             -mthumb)              ;;
2802             -march=*)             ;;
2803             -lz)                  echo zlib.lib ;;
2804             -lavifil32)           echo vfw32.lib ;;
2805             -lavicap32)           echo vfw32.lib user32.lib ;;
2806             -l*)                  echo ${flag#-l}.lib ;;
2807             -L*)                  echo -libpath:${flag#-L} ;;
2808             *)                    echo $flag ;;
2809         esac
2810     done
2811 }
2812
2813 msvc_flags(){
2814     msvc_common_flags "$@"
2815     for flag; do
2816         case $flag in
2817             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2818                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2819                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2820                                        -wd4273 -wd4554 -wd4701 ;;
2821         esac
2822     done
2823 }
2824
2825 icl_flags(){
2826     msvc_common_flags "$@"
2827     for flag; do
2828         case $flag in
2829             # Despite what Intel's documentation says -Wall, which is supported
2830             # on Windows, does enable remarks so disable them here.
2831             -Wall)                echo $flag -Qdiag-disable:remark ;;
2832             -std=c99)             echo -Qstd=c99 ;;
2833         esac
2834     done
2835 }
2836
2837 pgi_flags(){
2838     for flag; do
2839         case $flag in
2840             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2841             -fomit-frame-pointer) echo -Mnoframe ;;
2842             -g)                   echo -gopt ;;
2843             *)                    echo $flag ;;
2844         esac
2845     done
2846 }
2847
2848 suncc_flags(){
2849     for flag; do
2850         case $flag in
2851             -march=*|-mcpu=*)
2852                 case "${flag#*=}" in
2853                     native)                   echo -xtarget=native       ;;
2854                     v9|niagara)               echo -xarch=sparc          ;;
2855                     ultrasparc)               echo -xarch=sparcvis       ;;
2856                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2857                     i586|pentium)             echo -xchip=pentium        ;;
2858                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2859                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2860                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2861                     pentium4*)          echo -xtarget=pentium4           ;;
2862                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2863                     *-sse3)             echo -xarch=sse3                 ;;
2864                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2865                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2866                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2867                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2868                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2869                     k8|opteron|athlon64|athlon-fx)
2870                                                echo -xarch=sse2a         ;;
2871                     athlon*)                   echo -xarch=pentium_proa  ;;
2872                 esac
2873                 ;;
2874             -std=c99)             echo -xc99              ;;
2875             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2876             -fPIC)                echo -KPIC -xcode=pic32 ;;
2877             -W*,*)                echo $flag              ;;
2878             -f*-*|-W*|-mimpure-text)                      ;;
2879             -shared)              echo -G                 ;;
2880             *)                    echo $flag              ;;
2881         esac
2882     done
2883 }
2884
2885 tms470_flags(){
2886     for flag; do
2887         case $flag in
2888             -march=*|-mcpu=*)
2889                 case "${flag#*=}" in
2890                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2891                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2892                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2893                     armv6*|arm11*)          echo -mv=6   ;;
2894                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2895                                             echo -mv=5e  ;;
2896                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2897                 esac
2898                 ;;
2899             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2900             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2901             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2902             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2903             -msoft-float)   echo --float_support=vfplib       ;;
2904             -O[0-3]|-mf=*)  echo $flag                        ;;
2905             -g)             echo -g -mn                       ;;
2906             -pds=*)         echo $flag                        ;;
2907             -D*|-I*)        echo $flag                        ;;
2908             --gcc|--abi=*)  echo $flag                        ;;
2909             -me)            echo $flag                        ;;
2910         esac
2911     done
2912 }
2913
2914 probe_cc(){
2915     pfx=$1
2916     _cc=$2
2917
2918     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2919     unset _ld_o _ldflags _ld_lib _ld_path
2920     unset _depflags _DEPCMD _DEPFLAGS
2921     _flags_filter=echo
2922
2923     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2924         _type=llvm_gcc
2925         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2926         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2927         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2928         _cflags_speed='-O3'
2929         _cflags_size='-Os'
2930     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2931         _type=gcc
2932         gcc_version=$($_cc --version | head -n1)
2933         gcc_basever=$($_cc -dumpversion)
2934         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2935         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2936         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2937         if ! $_cc -dumpversion | grep -q '^2\.'; then
2938             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2939         fi
2940         _cflags_speed='-O3'
2941         _cflags_size='-Os'
2942     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2943         _type=icc
2944         _ident=$($_cc --version | head -n1)
2945         _depflags='-MMD'
2946         _cflags_speed='-O3'
2947         _cflags_size='-Os'
2948         _cflags_noopt='-O1'
2949     elif $_cc -v 2>&1 | grep -q xlc; then
2950         _type=xlc
2951         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2952         _cflags_speed='-O5'
2953         _cflags_size='-O5 -qcompact'
2954     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2955         _type=ccc
2956         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2957         _DEPFLAGS='-M'
2958         _cflags_speed='-fast'
2959         _cflags_size='-O1'
2960         _flags_filter=ccc_flags
2961     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2962         test -d "$sysroot" || die "No valid sysroot specified."
2963         _type=armcc
2964         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2965         armcc_conf="$PWD/armcc.conf"
2966         $_cc --arm_linux_configure                 \
2967              --arm_linux_config_file="$armcc_conf" \
2968              --configure_sysroot="$sysroot"        \
2969              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2970              die "Error creating armcc configuration file."
2971         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2972         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2973         as_default="${cross_prefix}gcc"
2974         _depflags='-MMD'
2975         _cflags_speed='-O3'
2976         _cflags_size='-Os'
2977     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2978         _type=tms470
2979         _ident=$($_cc -version | head -n1 | tr -s ' ')
2980         _flags='--gcc --abi=eabi -me'
2981         _cc_e='-ppl -fe=$@'
2982         _cc_o='-fe=$@'
2983         _depflags='-ppa -ppd=$(@:.o=.d)'
2984         _cflags_speed='-O3 -mf=5'
2985         _cflags_size='-O3 -mf=2'
2986         _flags_filter=tms470_flags
2987     elif $_cc -v 2>&1 | grep -q clang; then
2988         _type=clang
2989         _ident=$($_cc --version | head -n1)
2990         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2991         _cflags_speed='-O3'
2992         _cflags_size='-Os'
2993     elif $_cc -V 2>&1 | grep -q Sun; then
2994         _type=suncc
2995         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2996         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2997         _DEPFLAGS='-xM1 -xc99'
2998         _ldflags='-std=c99'
2999         _cflags_speed='-O5'
3000         _cflags_size='-O5 -xspace'
3001         _flags_filter=suncc_flags
3002     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3003         _type=pathscale
3004         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3005         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3006         _cflags_speed='-O2'
3007         _cflags_size='-Os'
3008         _flags_filter='filter_out -Wdisabled-optimization'
3009     elif $_cc -v 2>&1 | grep -q Open64; then
3010         _type=open64
3011         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3012         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3013         _cflags_speed='-O2'
3014         _cflags_size='-Os'
3015         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3016     elif $_cc -V 2>&1 | grep -q Portland; then
3017         _type=pgi
3018         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3019         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3020         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3021         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3022         _cflags_noopt="-O1"
3023         _flags_filter=pgi_flags
3024     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3025         _type=armasm
3026         _ident=$($_cc | head -n1)
3027         # 4509: "This form of conditional instruction is deprecated"
3028         _flags="-nologo -ignore 4509"
3029         _flags_filter=armasm_flags
3030     elif $_cc 2>&1 | grep -q Microsoft; then
3031         _type=msvc
3032         _ident=$($_cc 2>&1 | head -n1)
3033         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3034         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3035         _cflags_speed="-O2"
3036         _cflags_size="-O1"
3037         if $_cc 2>&1 | grep -q Linker; then
3038             _ld_o='-out:$@'
3039         else
3040             _ld_o='-Fe$@'
3041         fi
3042         _cc_o='-Fo$@'
3043         _cc_e='-P -Fi$@'
3044         _flags_filter=msvc_flags
3045         _ld_lib='lib%.a'
3046         _ld_path='-libpath:'
3047         _flags='-nologo'
3048         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3049     elif $_cc 2>&1 | grep -q Intel; then
3050         _type=icl
3051         _ident=$($_cc 2>&1 | head -n1)
3052         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3053         # Not only is O3 broken on 13.x+ but it is slower on all previous
3054         # versions (tested) as well.
3055         _cflags_speed="-O2"
3056         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3057         if $_cc 2>&1 | grep -q Linker; then
3058             _ld_o='-out:$@'
3059         else
3060             _ld_o='-Fe$@'
3061         fi
3062         _cc_o='-Fo$@'
3063         _cc_e='-P'
3064         _flags_filter=icl_flags
3065         _ld_lib='lib%.a'
3066         _ld_path='-libpath:'
3067         # -Qdiag-error to make icl error when seeing certain unknown arguments
3068         _flags='-nologo -Qdiag-error:4044,10157'
3069         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3070         # with MSVC which enables it by default.
3071         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3072     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3073         _type=cparser
3074         _ident=$($_cc --version | head -n1)
3075         _depflags='-MMD'
3076         _cflags_speed='-O4'
3077         _cflags_size='-O2'
3078         _flags_filter=cparser_flags
3079     fi
3080
3081     eval ${pfx}_type=\$_type
3082     eval ${pfx}_ident=\$_ident
3083 }
3084
3085 set_ccvars(){
3086     eval ${1}_C=\${_cc_c-\${${1}_C}}
3087     eval ${1}_E=\${_cc_e-\${${1}_E}}
3088     eval ${1}_O=\${_cc_o-\${${1}_O}}
3089
3090     if [ -n "$_depflags" ]; then
3091         eval ${1}_DEPFLAGS=\$_depflags
3092     else
3093         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3094         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3095         eval DEP${1}FLAGS=\$_flags
3096     fi
3097 }
3098
3099 probe_cc cc "$cc"
3100 cflags_filter=$_flags_filter
3101 cflags_speed=$_cflags_speed
3102 cflags_size=$_cflags_size
3103 cflags_noopt=$_cflags_noopt
3104 add_cflags $_flags $_cflags
3105 cc_ldflags=$_ldflags
3106 set_ccvars CC
3107
3108 probe_cc hostcc "$host_cc"
3109 host_cflags_filter=$_flags_filter
3110 add_host_cflags  $_flags $_cflags
3111 set_ccvars HOSTCC
3112
3113 test -n "$cc_type" && enable $cc_type ||
3114     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3115
3116 : ${as_default:=$cc}
3117 : ${dep_cc_default:=$cc}
3118 : ${ld_default:=$cc}
3119 : ${host_ld_default:=$host_cc}
3120 set_default ar as dep_cc ld host_ld
3121
3122 probe_cc as "$as"
3123 asflags_filter=$_flags_filter
3124 add_asflags $_flags $_cflags
3125 set_ccvars AS
3126
3127 probe_cc ld "$ld"
3128 ldflags_filter=$_flags_filter
3129 add_ldflags $_flags $_ldflags
3130 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3131 LD_O=${_ld_o-$LD_O}
3132 LD_LIB=${_ld_lib-$LD_LIB}
3133 LD_PATH=${_ld_path-$LD_PATH}
3134
3135 probe_cc hostld "$host_ld"
3136 host_ldflags_filter=$_flags_filter
3137 add_host_ldflags $_flags $_ldflags
3138 HOSTLD_O=${_ld_o-$HOSTLD_O}
3139
3140 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3141     probe_cc depcc "$dep_cc"
3142     CCDEP=${_DEPCMD:-$DEPCMD}
3143     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3144     DEPCCFLAGS=$_flags
3145 fi
3146
3147 if $ar 2>&1 | grep -q Microsoft; then
3148     arflags="-nologo"
3149     ar_o='-out:$@'
3150 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3151     arflags="rq"
3152     ar_o='$@'
3153 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3154     arflags='-Xany -r -c'
3155     ar_o='$@'
3156 else
3157     arflags="rc"
3158     ar_o='$@'
3159 fi
3160
3161 add_cflags $extra_cflags
3162 add_asflags $extra_cflags
3163
3164 if test -n "$sysroot"; then
3165     case "$cc_type" in
3166         gcc|llvm_gcc|clang)
3167             add_cppflags --sysroot="$sysroot"
3168             add_ldflags --sysroot="$sysroot"
3169         ;;
3170         tms470)
3171             add_cppflags -I"$sysinclude"
3172             add_ldflags  --sysroot="$sysroot"
3173         ;;
3174     esac
3175 fi
3176
3177 if test "$cpu" = host; then
3178     enabled cross_compile &&
3179         die "--cpu=host makes no sense when cross-compiling."
3180
3181     case "$cc_type" in
3182         gcc|llvm_gcc)
3183             check_native(){
3184                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3185                 sed -n "/cc1.*$1=/{
3186                             s/.*$1=\\([^ ]*\\).*/\\1/
3187                             p
3188                             q
3189                         }" $TMPE
3190             }
3191             cpu=$(check_native -march || check_native -mcpu)
3192         ;;
3193     esac
3194
3195     test "${cpu:-host}" = host &&
3196         die "--cpu=host not supported with compiler $cc"
3197 fi
3198
3199 # Deal with common $arch aliases
3200 case "$arch" in
3201     aarch64|arm64)
3202         arch="aarch64"
3203     ;;
3204     arm*)
3205         arch="arm"
3206     ;;
3207     mips*|IP*)
3208         arch="mips"
3209     ;;
3210     parisc*|hppa*)
3211         arch="parisc"
3212     ;;
3213     "Power Macintosh"|ppc*|powerpc*)
3214         arch="ppc"
3215     ;;
3216     s390|s390x)
3217         arch="s390"
3218     ;;
3219     sh4|sh)
3220         arch="sh4"
3221     ;;
3222     sun4u|sparc*)
3223         arch="sparc"
3224     ;;
3225     tilegx|tile-gx)
3226         arch="tilegx"
3227     ;;
3228     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3229         arch="x86"
3230     ;;
3231 esac
3232
3233 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3234 enable $arch
3235
3236 # Add processor-specific flags
3237 if enabled aarch64; then
3238
3239     case $cpu in
3240         armv*)
3241             cpuflags="-march=$cpu"
3242         ;;
3243         *)
3244             cpuflags="-mcpu=$cpu"
3245         ;;
3246     esac
3247
3248 elif enabled alpha; then
3249
3250     cpuflags="-mcpu=$cpu"
3251
3252 elif enabled arm; then
3253
3254     check_arm_arch() {
3255         check_cpp_condition stddef.h \
3256             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3257             $cpuflags
3258     }
3259
3260     probe_arm_arch() {
3261         if   check_arm_arch 4;        then echo armv4;
3262         elif check_arm_arch 4T;       then echo armv4t;
3263         elif check_arm_arch 5;        then echo armv5;
3264         elif check_arm_arch 5E;       then echo armv5e;
3265         elif check_arm_arch 5T;       then echo armv5t;
3266         elif check_arm_arch 5TE;      then echo armv5te;
3267         elif check_arm_arch 5TEJ;     then echo armv5te;
3268         elif check_arm_arch 6;        then echo armv6;
3269         elif check_arm_arch 6J;       then echo armv6j;
3270         elif check_arm_arch 6K;       then echo armv6k;
3271         elif check_arm_arch 6Z;       then echo armv6z;
3272         elif check_arm_arch 6ZK;      then echo armv6zk;
3273         elif check_arm_arch 6T2;      then echo armv6t2;
3274         elif check_arm_arch 7;        then echo armv7;
3275         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3276         elif check_arm_arch 7S;       then echo armv7-a;
3277         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3278         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3279         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3280         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3281         fi
3282     }
3283
3284     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3285
3286     case $cpu in
3287         armv*)
3288             cpuflags="-march=$cpu"
3289             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3290         ;;
3291         *)
3292             cpuflags="-mcpu=$cpu"
3293             case $cpu in
3294                 cortex-a*)                               subarch=armv7a  ;;
3295                 cortex-r*)                               subarch=armv7r  ;;
3296                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3297                 arm11*)                                  subarch=armv6   ;;
3298                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3299                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3300                 *)                             subarch=$(probe_arm_arch) ;;
3301             esac
3302         ;;
3303     esac
3304
3305     case "$subarch" in
3306         armv5t*)    enable fast_clz                ;;
3307         armv[6-8]*) enable fast_clz fast_unaligned ;;
3308     esac
3309
3310 elif enabled avr32; then
3311
3312     case $cpu in
3313         ap7[02]0[0-2])
3314             subarch="avr32_ap"
3315             cpuflags="-mpart=$cpu"
3316         ;;
3317         ap)
3318             subarch="avr32_ap"
3319             cpuflags="-march=$cpu"
3320         ;;
3321         uc3[ab]*)
3322             subarch="avr32_uc"
3323             cpuflags="-mcpu=$cpu"
3324         ;;
3325         uc)
3326             subarch="avr32_uc"
3327             cpuflags="-march=$cpu"
3328         ;;
3329     esac
3330
3331 elif enabled bfin; then
3332
3333     cpuflags="-mcpu=$cpu"
3334
3335 elif enabled mips; then
3336
3337     cpuflags="-march=$cpu"
3338
3339 elif enabled ppc; then
3340
3341     disable ldbrx
3342
3343     case $(tolower $cpu) in
3344         601|ppc601|powerpc601)
3345             cpuflags="-mcpu=601"
3346             disable altivec
3347         ;;
3348         603*|ppc603*|powerpc603*)
3349             cpuflags="-mcpu=603"
3350             disable altivec
3351         ;;
3352         604*|ppc604*|powerpc604*)
3353             cpuflags="-mcpu=604"
3354             disable altivec
3355         ;;
3356         g3|75*|ppc75*|powerpc75*)
3357             cpuflags="-mcpu=750"
3358             disable altivec
3359         ;;
3360         g4|745*|ppc745*|powerpc745*)
3361             cpuflags="-mcpu=7450"
3362             disable vsx
3363         ;;
3364         74*|ppc74*|powerpc74*)
3365             cpuflags="-mcpu=7400"
3366             disable vsx
3367         ;;
3368         g5|970|ppc970|powerpc970)
3369             cpuflags="-mcpu=970"
3370             disable vsx
3371         ;;
3372         power[3-6]*)
3373             cpuflags="-mcpu=$cpu"
3374             disable vsx
3375         ;;
3376         power[7-8]*)
3377             cpuflags="-mcpu=$cpu"
3378             enable ldbrx
3379         ;;
3380         cell)
3381             cpuflags="-mcpu=cell"
3382             enable ldbrx
3383             disable vsx
3384         ;;
3385         e500mc)
3386             cpuflags="-mcpu=e500mc"
3387             disable altivec
3388         ;;
3389         e500v2)
3390             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3391             disable altivec
3392             disable dcbzl
3393         ;;
3394         e500)
3395             cpuflags="-mcpu=8540 -mhard-float"
3396             disable altivec
3397             disable dcbzl
3398         ;;
3399     esac
3400
3401 elif enabled sparc; then
3402
3403     case $cpu in
3404         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3405             cpuflags="-mcpu=$cpu"
3406         ;;
3407         ultrasparc*|niagara[234])
3408             cpuflags="-mcpu=$cpu"
3409         ;;
3410     esac
3411
3412 elif enabled x86; then
3413
3414     case $cpu in
3415         i[345]86|pentium)
3416             cpuflags="-march=$cpu"
3417             disable i686
3418             disable mmx
3419         ;;
3420         # targets that do NOT support nopl and conditional mov (cmov)
3421         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3422             cpuflags="-march=$cpu"
3423             disable i686
3424         ;;
3425         # targets that do support nopl and conditional mov (cmov)
3426         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3427             cpuflags="-march=$cpu"
3428             enable i686
3429             enable fast_cmov
3430         ;;
3431         # targets that do support conditional mov but on which it's slow
3432         pentium4|pentium4m|prescott|nocona)
3433             cpuflags="-march=$cpu"
3434             enable i686
3435             disable fast_cmov
3436         ;;
3437     esac
3438
3439 fi
3440
3441 if [ "$cpu" != generic ]; then
3442     add_cflags  $cpuflags
3443     add_asflags $cpuflags
3444 fi
3445
3446 # compiler sanity check
3447 check_exec <<EOF
3448 int main(void){ return 0; }
3449 EOF
3450 if test "$?" != 0; then
3451     echo "$cc is unable to create an executable file."
3452     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3453         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3454         echo "Only do this if you know what cross compiling means."
3455     fi
3456     die "C compiler test failed."
3457 fi
3458
3459 add_cppflags -D_ISOC99_SOURCE
3460 check_cflags -std=c99
3461 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3462 #include <stdlib.h>
3463 EOF
3464 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3465 #include <stdlib.h>
3466 EOF
3467
3468 add_host_cppflags -D_ISOC99_SOURCE
3469 check_host_cflags -std=c99
3470 check_host_cflags -Wall
3471 check_host_cflags -O3
3472
3473 check_64bit(){
3474     arch32=$1
3475     arch64=$2
3476     expr=$3
3477     check_code cc "" "int test[2*($expr) - 1]" &&
3478         subarch=$arch64 || subarch=$arch32
3479 }
3480
3481 case "$arch" in
3482     aarch64|alpha|ia64)
3483         spic=$shared
3484     ;;
3485     mips)
3486         check_64bit mips mips64 '_MIPS_SIM > 1'
3487         spic=$shared
3488     ;;
3489     parisc)
3490         check_64bit parisc parisc64 'sizeof(void *) > 4'
3491         spic=$shared
3492     ;;
3493     ppc)
3494         check_64bit ppc ppc64 'sizeof(void *) > 4'
3495         spic=$shared
3496     ;;
3497     s390)
3498         check_64bit s390 s390x 'sizeof(void *) > 4'
3499         spic=$shared
3500     ;;
3501     sparc)
3502         check_64bit sparc sparc64 'sizeof(void *) > 4'
3503         spic=$shared
3504     ;;
3505     x86)
3506         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3507         if test "$subarch" = "x86_64"; then
3508             spic=$shared
3509         fi
3510     ;;
3511 esac
3512
3513 enable $subarch
3514 enabled spic && enable_weak pic
3515
3516 # OS specific
3517 case $target_os in
3518     aix)
3519         SHFLAGS=-shared
3520         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3521         enabled shared && add_ldflags -Wl,-brtl
3522         ;;
3523     android)
3524         disable symver
3525         enable section_data_rel_ro
3526         SLIB_INSTALL_NAME='$(SLIBNAME)'
3527         SLIB_INSTALL_LINKS=
3528         # soname not set on purpose
3529         SHFLAGS=-shared
3530         ;;
3531     haiku)
3532         prefix_default="/boot/common"
3533         network_extralibs="-lnetwork"
3534         host_libs=
3535         ;;
3536     sunos)
3537         SHFLAGS='-shared -Wl,-h,$$(@F)'
3538         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3539         network_extralibs="-lsocket -lnsl"
3540         # When using suncc to build, the Solaris linker will mark
3541         # an executable with each instruction set encountered by
3542         # the Solaris assembler.  As our libraries contain their own
3543         # guards for processor-specific code, instead suppress
3544         # generation of the HWCAPS ELF section on Solaris x86 only.
3545         enabled_all suncc x86 &&
3546             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3547             add_ldflags -Wl,-M,mapfile
3548         nm_default='nm -P -g'
3549         ;;
3550     netbsd)
3551         disable symver
3552         oss_indev_extralibs="-lossaudio"
3553         oss_outdev_extralibs="-lossaudio"
3554         ;;
3555     openbsd|bitrig)
3556         disable symver
3557         SHFLAGS='-shared'
3558         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3559         SLIB_INSTALL_LINKS=
3560         oss_indev_extralibs="-lossaudio"
3561         oss_outdev_extralibs="-lossaudio"
3562         ;;
3563     dragonfly)
3564         disable symver
3565         ;;
3566     freebsd)
3567         ;;
3568     bsd/os)
3569         add_extralibs -lpoll -lgnugetopt
3570         ;;
3571     darwin)
3572         enabled ppc && add_asflags -force_cpusubtype_ALL
3573         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3574         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3575         add_ldflags -Wl,-dynamic,-search_paths_first
3576         SLIBSUF=".dylib"
3577         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3578         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3579         objformat="macho"
3580         enabled x86_64 && objformat="macho64"
3581         enabled_any pic shared ||
3582             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3583         ;;
3584     mingw32*)
3585         if test $target_os = "mingw32ce"; then
3586             disable network
3587         else
3588             target_os=mingw32
3589         fi
3590         LIBTARGET=i386
3591         if enabled x86_64; then
3592             LIBTARGET="i386:x86-64"
3593         elif enabled arm; then
3594             LIBTARGET=arm-wince
3595         fi
3596         check_ldflags -Wl,--nxcompat
3597         check_ldflags -Wl,--dynamicbase
3598         shlibdir_default="$bindir_default"
3599         SLIBPREF=""
3600         SLIBSUF=".dll"
3601         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3602         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3603         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3604         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3605         SLIB_INSTALL_LINKS=
3606         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3607         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3608         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3609         objformat="win32"
3610         dlltool="${cross_prefix}dlltool"
3611         ranlib=:
3612         enable dos_paths
3613         ;;
3614     win32|win64)
3615         disable symver
3616         if enabled shared; then
3617             # Link to the import library instead of the normal static library
3618             # for shared libs.
3619             LD_LIB='%.lib'
3620             # Cannot build both shared and static libs with MSVC or icl.
3621             disable static
3622         fi
3623         shlibdir_default="$bindir_default"
3624         SLIBPREF=""
3625         SLIBSUF=".dll"
3626         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3627         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3628         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3629         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3630         SLIB_INSTALL_LINKS=
3631         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3632         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3633         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3634         objformat="win32"
3635         ranlib=:
3636         enable dos_paths
3637         ;;
3638     cygwin*)
3639         target_os=cygwin
3640         shlibdir_default="$bindir_default"
3641         SLIBPREF="cyg"
3642         SLIBSUF=".dll"
3643         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3644         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3645         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3646         SLIB_INSTALL_LINKS=
3647         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3648         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3649         objformat="win32"
3650         enable dos_paths
3651         ;;
3652     *-dos|freedos|opendos)
3653         network_extralibs="-lsocket"
3654         objformat="coff"
3655         enable dos_paths
3656         add_cppflags -U__STRICT_ANSI__
3657         ;;
3658     linux)
3659         enable dv1394
3660         enable section_data_rel_ro
3661         ;;
3662     irix*)
3663         target_os=irix
3664         ranlib="echo ignoring ranlib"
3665         ;;
3666     os/2*)
3667         ln_s="cp -f"
3668         objformat="aout"
3669         add_cppflags -D_GNU_SOURCE
3670         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3671         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3672         LIBSUF="_s.a"
3673         SLIBPREF=""
3674         SLIBSUF=".dll"
3675         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3676         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3677         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3678             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3679             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3680             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3681             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3682         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3683             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3684         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3685         enable dos_paths
3686         ;;
3687     gnu/kfreebsd)
3688         add_cppflags -D_BSD_SOURCE
3689         ;;
3690     gnu)
3691         ;;
3692     qnx)
3693         add_cppflags -D_QNX_SOURCE
3694         network_extralibs="-lsocket"
3695         ;;
3696     symbian)
3697         SLIBSUF=".dll"
3698         enable dos_paths
3699         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3700         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3701         add_ldflags -Wl,--target1-abs,--no-undefined \
3702                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3703                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3704         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3705                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3706                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3707         ;;
3708     osf1)
3709         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3710         ;;
3711     minix)
3712         ;;
3713     plan9)
3714         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3715                      -D_REENTRANT_SOURCE        \
3716                      -D_RESEARCH_SOURCE         \
3717                      -DFD_SETSIZE=96            \
3718                      -DHAVE_SOCK_OPTS
3719         add_compat strtod.o strtod=avpriv_strtod
3720         network_extralibs='-lbsd'
3721         exeobjs=compat/plan9/main.o
3722         cp_f='cp'
3723         ;;
3724     none)
3725         ;;
3726     *)
3727         die "Unknown OS '$target_os'."
3728         ;;
3729 esac
3730
3731 # determine libc flavour
3732
3733 probe_libc(){
3734     pfx=$1
3735     pfx_no_=${pfx%_}
3736     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3737     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3738         eval ${pfx}libc_type=uclibc
3739         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3740     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3741         eval ${pfx}libc_type=glibc
3742         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3743     # MinGW headers can be installed on Cygwin, so check for newlib first.
3744     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3745         eval ${pfx}libc_type=newlib
3746         add_${pfx}cppflags -U__STRICT_ANSI__
3747     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3748     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3749         eval ${pfx}libc_type=mingw64
3750         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3751         eval test \$${pfx_no_}cc_type = "gcc" &&
3752             add_${pfx}cppflags -D__printf__=__gnu_printf__
3753     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3754          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3755         eval ${pfx}libc_type=mingw32
3756         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3757             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3758             die "ERROR: MinGW32 runtime version must be >= 3.15."
3759         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3760         eval test \$${pfx_no_}cc_type = "gcc" &&
3761             add_${pfx}cppflags -D__printf__=__gnu_printf__
3762     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3763         eval ${pfx}libc_type=msvcrt
3764         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3765             if [ "$pfx" = host_ ]; then
3766                 add_host_cppflags -Dsnprintf=_snprintf
3767             else
3768                 add_compat strtod.o strtod=avpriv_strtod
3769                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3770                                              _snprintf=avpriv_snprintf  \
3771                                              vsnprintf=avpriv_vsnprintf
3772             fi
3773         fi
3774         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3775         # 0x601 by default unless something else is set by the user.
3776         # This can easily lead to us detecting functions only present
3777         # in such new versions and producing binaries requiring windows 7.0.
3778         # Therefore explicitly set the default to XP unless the user has
3779         # set something else on the command line.
3780         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3781             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3782     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3783         eval ${pfx}libc_type=klibc
3784     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3785         eval ${pfx}libc_type=bionic
3786     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3787         eval ${pfx}libc_type=solaris
3788         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3789     else
3790         eval ${pfx}libc_type=default
3791         add_${pfx}cppflags -D_DEFAULT_SOURCE
3792     fi
3793 }
3794
3795 probe_libc
3796 test -n "$libc_type" && enable libc_$libc_type
3797 probe_libc host_
3798 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3799
3800 case $libc_type in
3801     bionic)
3802         add_compat strtod.o strtod=avpriv_strtod
3803         ;;
3804 esac
3805
3806 # hacks for compiler/libc/os combinations
3807
3808 if enabled_all tms470 libc_glibc; then
3809     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3810     add_cppflags -D__USER_LABEL_PREFIX__=
3811     add_cppflags -D__builtin_memset=memset
3812     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3813     add_cflags   -pds=48    # incompatible redefinition of macro
3814 fi
3815
3816 if enabled_all ccc libc_glibc; then
3817     add_ldflags -Wl,-z,now  # calls to libots crash without this
3818 fi
3819
3820 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3821     add_cppflags '-I\$(SRC_PATH)/compat/float'
3822
3823 esc(){
3824     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3825 }
3826
3827 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3828
3829 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3830
3831 set_default $PATHS_LIST
3832 set_default nm
3833
3834 # we need to build at least one lib type
3835 if ! enabled_any static shared; then
3836     cat <<EOF
3837 At least one library type must be built.
3838 Specify --enable-static to build the static libraries or --enable-shared to
3839 build the shared libraries as well. To only build the shared libraries specify
3840 --disable-static in addition to --enable-shared.
3841 EOF
3842     exit 1;
3843 fi
3844
3845 die_license_disabled() {
3846     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3847 }
3848
3849 die_license_disabled gpl libcdio
3850 die_license_disabled gpl libx264
3851 die_license_disabled gpl libx265
3852 die_license_disabled gpl libxavs
3853 die_license_disabled gpl libxvid
3854 die_license_disabled gpl x11grab
3855
3856 die_license_disabled nonfree libfaac
3857 die_license_disabled nonfree libfdk_aac
3858 die_license_disabled nonfree nvenc
3859 die_license_disabled nonfree openssl
3860
3861 die_license_disabled version3 libopencore_amrnb
3862 die_license_disabled version3 libopencore_amrwb
3863 die_license_disabled version3 libvo_aacenc
3864 die_license_disabled version3 libvo_amrwbenc
3865
3866 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3867
3868 disabled optimizations || check_cflags -fomit-frame-pointer
3869
3870 enable_weak_pic() {
3871     disabled pic && return
3872     enable pic
3873     add_cppflags -DPIC
3874     case "$target_os" in
3875     mingw*|cygwin*)
3876         ;;
3877     *)
3878         add_cflags -fPIC
3879         ;;
3880     esac
3881     add_asflags  -fPIC
3882 }
3883
3884 enabled pic && enable_weak_pic
3885
3886 check_cc <<EOF || die "Symbol mangling check failed."
3887 int ff_extern;
3888 EOF
3889 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3890 extern_prefix=${sym%%ff_extern*}
3891
3892 check_cc <<EOF && enable_weak inline_asm
3893 void foo(void) { __asm__ volatile ("" ::); }
3894 EOF
3895
3896 _restrict=
3897 for restrict_keyword in restrict __restrict__ __restrict; do
3898     check_cc <<EOF && _restrict=$restrict_keyword && break
3899 void foo(char * $restrict_keyword p);
3900 EOF
3901 done
3902
3903 check_cc <<EOF && enable pragma_deprecated
3904 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3905 EOF
3906
3907 check_cc <<EOF && enable attribute_packed
3908 struct { int x; } __attribute__((packed)) x;
3909 EOF
3910
3911 check_cc <<EOF && enable attribute_may_alias
3912 union { int x; } __attribute__((may_alias)) x;
3913 EOF
3914
3915 check_cc <<EOF || die "endian test failed"
3916 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3917 EOF
3918 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3919
3920 check_gas() {
3921     log "check_gas using '$as' as AS"
3922     # :vararg is used on aarch64, arm and ppc altivec
3923     check_as <<EOF || return 1
3924 .macro m n, y:vararg=0
3925 \n: .int \y
3926 .endm
3927 m x
3928 EOF
3929     # .altmacro is only used in arm asm
3930     ! enabled arm || check_as <<EOF || return 1
3931 .altmacro
3932 EOF
3933     enable gnu_as
3934     return 0
3935 }
3936
3937 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3938     nogas=:
3939     enabled_any arm aarch64 && nogas=die
3940     enabled_all ppc altivec && nogas=warn
3941     as_noop=-v
3942
3943     case $as_type in
3944         arm*) gaspp_as_type=armasm; as_noop=-h ;;
3945         gcc)  gaspp_as_type=gas ;;
3946         *)    gaspp_as_type=$as_type ;;
3947     esac
3948
3949     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3950
3951     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3952         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3953
3954     if ! check_gas ; then
3955         as=${gas:=$as}
3956         check_gas || \
3957             $nogas "GNU assembler not found, install/update gas-preprocessor"
3958     fi
3959
3960     check_as <<EOF && enable as_func
3961 .func test
3962 .endfunc
3963 EOF
3964 fi
3965
3966 check_inline_asm inline_asm_labels '"1:\n"'
3967
3968 if enabled aarch64; then
3969     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
3970     # internal assembler in clang 3.3 does not support this instruction
3971     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
3972     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
3973
3974     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3975
3976 elif enabled alpha; then
3977
3978     check_cflags -mieee
3979
3980 elif enabled arm; then
3981
3982     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3983     enabled thumb && check_cflags -mthumb || check_cflags -marm
3984
3985     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3986         enable vfp_args
3987     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3988         case "${cross_prefix:-$cc}" in
3989             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3990             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3991 __asm__ (".eabi_attribute 28, 1");
3992 int main(void) { return 0; }
3993 EOF
3994         esac
3995         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3996     fi
3997
3998     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3999     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4000     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4001     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4002     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4003     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4004
4005     [ $target_os = linux ] || [ $target_os = android ] ||
4006         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4007             $ARCH_EXT_LIST_ARM
4008
4009     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4010
4011     check_as <<EOF && enable as_dn_directive
4012 ra .dn d0.i16
4013 .unreq ra
4014 EOF
4015
4016     # llvm's integrated assembler supports .object_arch from llvm 3.5
4017     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4018 .object_arch armv4
4019 EOF
4020
4021     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4022
4023 elif enabled mips; then
4024
4025     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4026
4027 elif enabled parisc; then
4028
4029     if enabled gcc; then
4030         case $($cc -dumpversion) in
4031             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4032         esac
4033     fi
4034
4035 elif enabled ppc; then
4036
4037     enable local_aligned_8 local_aligned_16
4038
4039     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4040     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4041     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4042     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4043
4044     # AltiVec flags: The FSF version of GCC differs from the Apple version
4045     if enabled altivec; then
4046         check_cflags -maltivec -mabi=altivec &&
4047         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4048         check_cflags -faltivec
4049
4050         # check if our compiler supports Motorola AltiVec C API
4051         check_cc <<EOF || disable altivec
4052 $inc_altivec_h
4053 int main(void) {
4054     vector signed int v1 = (vector signed int) { 0 };
4055     vector signed int v2 = (vector signed int) { 1 };
4056     v1 = vec_add(v1, v2);
4057     return 0;
4058 }
4059 EOF
4060
4061         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4062     fi
4063
4064     if enabled vsx; then
4065         check_cflags -mvsx &&
4066         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4067     fi
4068
4069     if enabled power8; then
4070         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4071     fi
4072
4073 elif enabled x86; then
4074
4075     check_builtin rdtsc    intrin.h   "__rdtsc()"
4076     check_builtin mm_empty mmintrin.h "_mm_empty()"
4077
4078     enable local_aligned_8 local_aligned_16
4079
4080     # check whether EBP is available on x86
4081     # As 'i' is stored on the stack, this program will crash
4082     # if the base pointer is used to access it because the
4083     # base pointer is cleared in the inline assembly code.
4084     check_exec_crash <<EOF && enable ebp_available
4085 volatile int i=0;
4086 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4087 return i;
4088 EOF
4089
4090     # check whether EBX is available on x86
4091     check_inline_asm ebx_available '""::"b"(0)' &&
4092         check_inline_asm ebx_available '"":::"%ebx"'
4093
4094     # check whether xmm clobbers are supported
4095     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4096
4097     # check whether binutils is new enough to compile SSSE3/MMXEXT
4098     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4099     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4100
4101     if ! disabled_any asm mmx yasm; then
4102         if check_cmd $yasmexe --version; then
4103             enabled x86_64 && yasm_extra="-m amd64"
4104             yasm_debug="-g dwarf2"
4105         elif check_cmd nasm -v; then
4106             yasmexe=nasm
4107             yasm_debug="-g -F dwarf"
4108             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4109         fi
4110
4111         YASMFLAGS="-f $objformat $yasm_extra"
4112         enabled pic               && append YASMFLAGS "-DPIC"
4113         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4114         case "$objformat" in
4115             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4116         esac
4117
4118         check_yasm "movbe ecx, [5]" && enable yasm ||
4119             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4120         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4121         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4122         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4123         check_yasm "CPU amdnop" || disable cpunop
4124     fi
4125
4126     case "$cpu" in
4127         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4128             disable fast_clz
4129         ;;
4130     esac
4131
4132 fi
4133
4134 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4135
4136 check_ldflags -Wl,--as-needed
4137
4138 if check_func dlopen; then
4139     ldl=
4140 elif check_func dlopen -ldl; then
4141     ldl=-ldl
4142 fi
4143
4144 if ! disabled network; then
4145     check_func getaddrinfo $network_extralibs
4146     check_func getservbyport $network_extralibs
4147     check_func inet_aton $network_extralibs
4148
4149     check_type netdb.h "struct addrinfo"
4150     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4151     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4152     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4153     check_type poll.h "struct pollfd"
4154     check_type netinet/sctp.h "struct sctp_event_subscribe"
4155     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4156     check_type netinet/in.h "struct sockaddr_in6"
4157     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4158     check_type "sys/types.h sys/socket.h" socklen_t
4159
4160     # Prefer arpa/inet.h over winsock2
4161     if check_header arpa/inet.h ; then
4162         check_func closesocket
4163     elif check_header winsock2.h ; then
4164         check_func_headers winsock2.h closesocket -lws2 &&
4165             network_extralibs="-lws2" ||
4166         { check_func_headers winsock2.h closesocket -lws2_32 &&
4167             network_extralibs="-lws2_32"; } || disable winsock2_h network
4168         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4169
4170         check_type ws2tcpip.h socklen_t
4171         check_type ws2tcpip.h "struct addrinfo"
4172         check_type ws2tcpip.h "struct group_source_req"
4173         check_type ws2tcpip.h "struct ip_mreq_source"
4174         check_type ws2tcpip.h "struct ipv6_mreq"
4175         check_type winsock2.h "struct pollfd"
4176         check_struct winsock2.h "struct sockaddr" sa_len
4177         check_type ws2tcpip.h "struct sockaddr_in6"
4178         check_type ws2tcpip.h "struct sockaddr_storage"
4179     else
4180         disable network
4181     fi
4182 fi
4183
4184 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4185 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4186 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4187 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4188
4189 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4190 check_func  ${malloc_prefix}memalign            && enable memalign
4191 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4192
4193 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4194     check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4195
4196 check_func  fcntl
4197 check_func  fork
4198 check_func  gethrtime
4199 check_func  getopt
4200 check_func  getrusage
4201 check_func  gettimeofday
4202 check_func  gmtime_r
4203 check_func  isatty
4204 check_func  localtime_r
4205 check_func  mach_absolute_time
4206 check_func  mkstemp
4207 check_func  mmap
4208 check_func  mprotect
4209 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4210 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4211 check_func  sched_getaffinity
4212 check_func  setrlimit
4213 check_func  strerror_r
4214 check_func  sysconf
4215 check_func  sysctl
4216 check_func  usleep
4217
4218 check_func_headers io.h setmode
4219 check_func_headers stdlib.h getenv
4220
4221 check_func_headers windows.h CoTaskMemFree -lole32
4222 check_func_headers windows.h GetProcessAffinityMask
4223 check_func_headers windows.h GetProcessTimes
4224 check_func_headers windows.h GetSystemTimeAsFileTime
4225 check_func_headers windows.h LoadLibrary
4226 check_func_headers windows.h MapViewOfFile
4227 check_func_headers windows.h SetConsoleTextAttribute
4228 check_func_headers windows.h Sleep
4229 check_func_headers windows.h VirtualAlloc
4230 check_struct windows.h "CONDITION_VARIABLE" Ptr
4231
4232 check_header direct.h
4233 check_header dlfcn.h
4234 check_header d3d11.h
4235 check_header dxva.h
4236 check_header dxva2api.h
4237 check_header io.h
4238 check_header mach/mach_time.h
4239 check_header malloc.h
4240 check_header poll.h
4241 check_header sys/mman.h
4242 check_header sys/param.h
4243 check_header sys/resource.h
4244 check_header sys/select.h
4245 check_header sys/time.h
4246 check_header sys/un.h
4247 check_header unistd.h
4248 check_header valgrind/valgrind.h
4249 check_header vdpau/vdpau.h
4250 check_header vdpau/vdpau_x11.h
4251 check_header VideoDecodeAcceleration/VDADecoder.h
4252 check_header windows.h
4253 check_header X11/extensions/XvMClib.h
4254
4255 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4256 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4257 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4258
4259 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4260
4261 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC"
4262 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4263 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0600
4264
4265 if ! disabled w32threads && ! enabled pthreads; then
4266     check_func_headers "windows.h process.h" _beginthreadex &&
4267         enable w32threads || disable w32threads
4268 fi
4269
4270 # check for some common methods of building with pthread support
4271 # do this before the optional library checks as some of them require pthreads
4272 if ! disabled pthreads && ! enabled w32threads; then
4273     enable pthreads
4274     if check_func pthread_join -pthread; then
4275         add_cflags -pthread
4276         add_extralibs -pthread
4277     elif check_func pthread_join -pthreads; then
4278         add_cflags -pthreads
4279         add_extralibs -pthreads
4280     elif check_func pthread_join -lpthreadGC2; then
4281         add_extralibs -lpthreadGC2
4282     elif check_lib pthread.h pthread_join -lpthread; then
4283         :
4284     elif ! check_func pthread_join; then
4285         disable pthreads
4286     fi
4287 fi
4288
4289 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4290 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4291
4292 check_lib math.h sin -lm && LIBM="-lm"
4293 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4294
4295 atan2f_args=2
4296 ldexpf_args=2
4297 powf_args=2
4298
4299 for func in $MATH_FUNCS; do
4300     eval check_mathfunc $func \${${func}_args:-1}
4301 done
4302
4303 # these are off by default, so fail if requested and not available
4304 enabled avisynth          && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4305                                check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl   ||
4306                                die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4307 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4308 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4309 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4310 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4311 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4312 enabled libfdk_aac        && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4313 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4314 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4315 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4316                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4317                                done || die "ERROR: libgsm not found"; }
4318 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4319 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4320 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4321 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4322 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4323 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4324 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4325 enabled libopenjpeg       && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4326                                { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4327 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4328 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4329 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4330 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4331 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
4332 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4333 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4334 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4335 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4336 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4337 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4338 enabled libvpx            && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4339     enabled libvpx_vp8_decoder && {
4340         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4341             disable libvpx_vp8_decoder;
4342     }
4343     enabled libvpx_vp8_encoder && {
4344         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4345             disable libvpx_vp8_encoder;
4346     }
4347     enabled libvpx_vp9_decoder && {
4348         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4349             disable libvpx_vp9_decoder;
4350     }
4351     enabled libvpx_vp9_encoder && {
4352         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4353             disable libvpx_vp9_encoder;
4354     }
4355     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4356         die "libvpx enabled but no supported decoders found"
4357     fi
4358 }
4359 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4360 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4361 enabled libx264           && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4362                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4363                                die "ERROR: libx264 version must be >= 0.118."; } &&
4364                              { check_cpp_condition x264.h "X264_MPEG2" &&
4365                                enable libx262; }
4366 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
4367                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4368                                die "ERROR: libx265 version must be >= 57."; }
4369 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4370 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4371 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4372                                 { ! enabled cross_compile && {
4373                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4374                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4375                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
4376                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4377                                die "ERROR: mmal not found"; }
4378 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4379                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4380                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4381                                die "ERROR: openssl not found"; }
4382
4383 if enabled gnutls; then
4384     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4385     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4386 fi
4387
4388 # libdc1394 check
4389 if enabled libdc1394; then
4390     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4391         enable libdc1394_2; } ||
4392     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4393         enable libdc1394_1; } ||
4394     die "ERROR: No version of libdc1394 found "
4395 fi
4396
4397 if enabled nvenc; then
4398     check_header cuda.h || die "ERROR: cuda.h not found.";
4399     check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4400     check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4401         die "ERROR: NVENC API version 4 or older is not supported";
4402 fi
4403
4404 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4405     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4406     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4407     enable sdl
4408 fi
4409
4410 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4411 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4412
4413 check_header linux/fb.h
4414 check_header linux/videodev2.h
4415 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4416
4417 check_header sys/videoio.h
4418
4419 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4420 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4421 # w32api 3.12 had it defined wrong
4422 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4423
4424 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4425 { check_header dev/bktr/ioctl_meteor.h &&
4426   check_header dev/bktr/ioctl_bt848.h; } ||
4427 { check_header machine/ioctl_meteor.h &&
4428   check_header machine/ioctl_bt848.h; } ||
4429 { check_header dev/video/meteor/ioctl_meteor.h &&
4430   check_header dev/video/bktr/ioctl_bt848.h; } ||
4431 check_header dev/ic/bt8xx.h
4432
4433 check_header sndio.h
4434 check_header sys/soundcard.h
4435 check_header soundcard.h
4436
4437 enabled_any alsa_indev alsa_outdev &&
4438     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4439
4440 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4441     check_func jack_port_get_latency_range -ljack
4442
4443 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4444
4445 if enabled libcdio; then
4446     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4447     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4448     die "ERROR: No usable libcdio/cdparanoia found"
4449 fi
4450
4451 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4452
4453 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4454     check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4455         enabled libxcb && die "ERROR: libxcb not found";
4456     } && disable x11grab && enable libxcb
4457
4458     disabled libxcb_shm ||
4459         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4460             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4461         } && check_header sys/shm.h && enable libxcb_shm
4462
4463     disabled libxcb_xfixes ||
4464         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4465             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4466         } && enable libxcb_xfixes
4467
4468     add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4469     add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4470 fi
4471
4472 if enabled x11grab; then
4473     enabled xlib || die "ERROR: Xlib not found"
4474     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4475     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4476 fi
4477
4478 enabled vaapi && enabled xlib &&
4479     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4480     enable vaapi_x11
4481
4482 enabled vdpau &&
4483     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4484     disable vdpau
4485
4486 enabled vdpau && enabled xlib &&
4487     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4488     prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4489     enable vdpau_x11
4490
4491 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4492
4493 # add some useful compiler flags if supported
4494 check_cflags -Wdeclaration-after-statement
4495 check_cflags -Wall
4496 check_cflags -Wdisabled-optimization
4497 check_cflags -Wpointer-arith
4498 check_cflags -Wredundant-decls
4499 check_cflags -Wcast-qual
4500 check_cflags -Wwrite-strings
4501 check_cflags -Wtype-limits
4502 check_cflags -Wundef
4503 check_cflags -Wmissing-prototypes
4504 check_cflags -Wstrict-prototypes
4505 enabled extra_warnings && check_cflags -Winline
4506
4507 check_disable_warning(){
4508     warning_flag=-W${1#-Wno-}
4509     test_cflags $warning_flag && add_cflags $1
4510 }
4511
4512 check_disable_warning -Wno-parentheses
4513 check_disable_warning -Wno-switch
4514 check_disable_warning -Wno-format-zero-length
4515 check_disable_warning -Wno-pointer-sign
4516
4517 # add some linker flags
4518 check_ldflags -Wl,--warn-common
4519 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4520 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4521 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4522
4523 # add some strip flags
4524 # -wN '..@*' is more selective than -x, but not available everywhere.
4525 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4526
4527 enabled neon_clobber_test &&
4528     check_ldflags -Wl,--wrap,avcodec_open2              \
4529                   -Wl,--wrap,avcodec_decode_audio4      \
4530                   -Wl,--wrap,avcodec_decode_video2      \
4531                   -Wl,--wrap,avcodec_decode_subtitle2   \
4532                   -Wl,--wrap,avcodec_encode_audio2      \
4533                   -Wl,--wrap,avcodec_encode_video2      \
4534                   -Wl,--wrap,avcodec_encode_subtitle    \
4535                   -Wl,--wrap,avresample_convert ||
4536     disable neon_clobber_test
4537
4538 enabled xmm_clobber_test &&
4539     check_ldflags -Wl,--wrap,avcodec_open2              \
4540                   -Wl,--wrap,avcodec_decode_audio4      \
4541                   -Wl,--wrap,avcodec_decode_video2      \
4542                   -Wl,--wrap,avcodec_decode_subtitle2   \
4543                   -Wl,--wrap,avcodec_encode_audio2      \
4544                   -Wl,--wrap,avcodec_encode_video2      \
4545                   -Wl,--wrap,avcodec_encode_subtitle    \
4546                   -Wl,--wrap,avresample_convert         \
4547                   -Wl,--wrap,sws_scale ||
4548     disable xmm_clobber_test
4549
4550 echo "X{};" > $TMPV
4551 if test_ldflags -Wl,--version-script,$TMPV; then
4552     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4553     check_cc <<EOF && enable symver_asm_label
4554 void ff_foo(void) __asm__ ("av_foo@VERSION");
4555 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4556 EOF
4557     check_cc <<EOF && enable symver_gnu_asm
4558 __asm__(".symver ff_foo,av_foo@VERSION");
4559 void ff_foo(void) {}
4560 EOF
4561 fi
4562
4563 if [ -z "$optflags" ]; then
4564     if enabled small; then
4565         optflags=$cflags_size
4566     elif enabled optimizations; then
4567         optflags=$cflags_speed
4568     else
4569         optflags=$cflags_noopt
4570     fi
4571 fi
4572
4573 check_optflags(){
4574     check_cflags "$@"
4575     enabled lto && check_ldflags "$@"
4576 }
4577
4578
4579 if enabled lto; then
4580     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4581     check_cflags  -flto
4582     check_ldflags -flto $cpuflags
4583 fi
4584
4585 check_optflags $optflags
4586 check_optflags -fno-math-errno
4587 check_optflags -fno-signed-zeros
4588
4589 if enabled icc; then
4590     # Just warnings, no remarks
4591     check_cflags -w1
4592     # -wd: Disable following warnings
4593     # 144, 167, 556: -Wno-pointer-sign
4594     # 1292: attribute "foo" ignored
4595     # 1419: external declaration in primary source file
4596     # 10006: ignoring unknown option -fno-signed-zeros
4597     # 10148: ignoring unknown option -Wno-parentheses
4598     # 10156: ignoring option '-W'; no argument required
4599     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4600     # 11030: Warning unknown option --as-needed
4601     # 10156: ignoring option '-export'; no argument required
4602     check_ldflags -wd10156,11030
4603     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4604     enable ebp_available
4605     if enabled x86_32; then
4606         icc_version=$($cc -dumpversion)
4607         test ${icc_version%%.*} -ge 11 &&
4608             check_cflags -falign-stack=maintain-16-byte ||
4609             disable aligned_stack
4610     fi
4611 elif enabled ccc; then
4612     # disable some annoying warnings
4613     add_cflags -msg_disable bitnotint
4614     add_cflags -msg_disable mixfuncvoid
4615     add_cflags -msg_disable nonstandcast
4616     add_cflags -msg_disable unsupieee
4617 elif enabled gcc; then
4618     check_optflags -fno-tree-vectorize
4619     check_cflags -Werror=implicit-function-declaration
4620     check_cflags -Werror=missing-prototypes
4621     check_cflags -Werror=return-type
4622     check_cflags -Werror=declaration-after-statement
4623     check_cflags -Werror=vla
4624     check_cflags -Werror=format-security
4625     check_cflags -fdiagnostics-color=auto
4626     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4627 elif enabled llvm_gcc; then
4628     check_cflags -mllvm -stack-alignment=16
4629 elif enabled clang; then
4630     check_cflags -mllvm -stack-alignment=16
4631     check_cflags -Qunused-arguments
4632     check_cflags -Werror=implicit-function-declaration
4633     check_cflags -Werror=missing-prototypes
4634     check_cflags -Werror=return-type
4635 elif enabled cparser; then
4636     add_cflags -Wno-missing-variable-declarations
4637     add_cflags -Wno-empty-statement
4638 elif enabled armcc; then
4639     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4640     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4641     # 2523: use of inline assembly is deprecated
4642     add_cflags -W${armcc_opt},--diag_suppress=2523
4643     add_cflags -W${armcc_opt},--diag_suppress=1207
4644     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4645     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4646     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4647     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4648 elif enabled tms470; then
4649     add_cflags -pds=824 -pds=837
4650     disable inline_asm
4651 elif enabled pathscale; then
4652     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4653 elif enabled_any msvc icl; then
4654     enabled x86_32 && disable aligned_stack
4655     enabled_all x86_32 debug && add_cflags -Oy-
4656     enabled debug && add_ldflags -debug
4657     enable pragma_deprecated
4658     if enabled icl; then
4659         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4660         # (correctly) on icl 13.x.
4661         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4662             add_cflags -Qansi-alias
4663         # icl will pass the inline asm tests but inline asm is currently
4664         # not supported (build will fail)
4665         disable inline_asm
4666     fi
4667     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4668     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4669 fi
4670
4671 case $as_type in
4672     clang)
4673         add_asflags -Qunused-arguments
4674     ;;
4675 esac
4676
4677 case $ld_type in
4678     clang)
4679         check_ldflags -Qunused-arguments
4680     ;;
4681 esac
4682
4683 case $target_os in
4684     osf1)
4685         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4686     ;;
4687     plan9)
4688         add_cppflags -Dmain=plan9_main
4689     ;;
4690 esac
4691
4692 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4693
4694 check_deps $CONFIG_LIST       \
4695            $CONFIG_EXTRA      \
4696            $HAVE_LIST         \
4697            $ALL_COMPONENTS    \
4698
4699 enabled_all dxva2 CoTaskMemFree &&
4700     prepend avconv_libs $($ldflags_filter "-lole32") &&
4701     enable dxva2_lib
4702
4703 ! enabled_any memalign posix_memalign aligned_malloc &&
4704     enabled simd_align_16 && enable memalign_hack
4705
4706 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4707
4708 for thread in $THREADS_LIST; do
4709     if enabled $thread; then
4710         test -n "$thread_type" &&
4711             die "ERROR: Only one thread type must be selected." ||
4712             thread_type="$thread"
4713     fi
4714 done
4715
4716 enabled zlib && add_cppflags -DZLIB_CONST
4717
4718 # conditional library dependencies, in linking order
4719 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
4720 enabled resample_filter && prepend avfilter_deps "avresample"
4721 enabled scale_filter    && prepend avfilter_deps "swscale"
4722
4723 enabled opus_decoder    && prepend avcodec_deps "avresample"
4724
4725 expand_deps(){
4726     lib_deps=${1}_deps
4727     eval "deps=\$$lib_deps"
4728     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4729     unique $lib_deps
4730 }
4731
4732 map 'expand_deps $v' $LIBRARY_LIST
4733
4734 echo "install prefix            $prefix"
4735 echo "source path               $source_path"
4736 echo "C compiler                $cc"
4737 echo "C library                 $libc_type"
4738 if test "$host_cc" != "$cc"; then
4739     echo "host C compiler           $host_cc"
4740     echo "host C library            $host_libc_type"
4741 fi
4742 echo "ARCH                      $arch ($cpu)"
4743 if test "$build_suffix" != ""; then
4744     echo "build suffix              $build_suffix"
4745 fi
4746 if test "$extra_version" != ""; then
4747     echo "version string suffix     $extra_version"
4748 fi
4749 echo "big-endian                ${bigendian-no}"
4750 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4751 if enabled x86; then
4752     echo "${yasmexe}                      ${yasm-no}"
4753     echo "MMX enabled               ${mmx-no}"
4754     echo "MMXEXT enabled            ${mmxext-no}"
4755     echo "3DNow! enabled            ${amd3dnow-no}"
4756     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4757     echo "SSE enabled               ${sse-no}"
4758     echo "SSSE3 enabled             ${ssse3-no}"
4759     echo "AVX enabled               ${avx-no}"
4760     echo "XOP enabled               ${xop-no}"
4761     echo "FMA3 enabled              ${fma3-no}"
4762     echo "FMA4 enabled              ${fma4-no}"
4763     echo "i686 features enabled     ${i686-no}"
4764     echo "CMOV is fast              ${fast_cmov-no}"
4765     echo "EBX available             ${ebx_available-no}"
4766     echo "EBP available             ${ebp_available-no}"
4767 fi
4768 if enabled aarch64; then
4769     echo "NEON enabled              ${neon-no}"
4770     echo "VFP enabled               ${vfp-no}"
4771 fi
4772 if enabled arm; then
4773     echo "ARMv5TE enabled           ${armv5te-no}"
4774     echo "ARMv6 enabled             ${armv6-no}"
4775     echo "ARMv6T2 enabled           ${armv6t2-no}"
4776     echo "VFP enabled               ${vfp-no}"
4777     echo "NEON enabled              ${neon-no}"
4778 fi
4779 if enabled ppc; then
4780     echo "AltiVec enabled           ${altivec-no}"
4781     echo "VSX enabled               ${vsx-no}"
4782     echo "POWER8 enabled            ${power8-no}"
4783     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4784     echo "dcbzl available           ${dcbzl-no}"
4785 fi
4786 echo "debug symbols             ${debug-no}"
4787 echo "optimize for size         ${small-no}"
4788 echo "optimizations             ${optimizations-no}"
4789 echo "static                    ${static-no}"
4790 echo "shared                    ${shared-no}"
4791 echo "new filter support        ${avfilter-no}"
4792 echo "network support           ${network-no}"
4793 echo "threading support         ${thread_type-no}"
4794 echo "safe bitstream reader     ${safe_bitstream_reader-no}"