configure: Factor out ividsp 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     pixblockdsp
1622     qpeldsp
1623     qsv
1624     qsvdec
1625     qsvenc
1626     rangecoder
1627     riffdec
1628     riffenc
1629     rtpdec
1630     rtpenc_chain
1631     sinewin
1632     snappy
1633     startcode
1634     texturedsp
1635     texturedspenc
1636     tpeldsp
1637     videodsp
1638     vp3dsp
1639     wma_freqs
1640 "
1641
1642 CMDLINE_SELECT="
1643     $ARCH_EXT_LIST
1644     $CONFIG_LIST
1645     $HAVE_LIST_CMDLINE
1646     $THREADS_LIST
1647     asm
1648     cross_compile
1649     debug
1650     extra_warnings
1651     logging
1652     lto
1653     optimizations
1654     rpath
1655 "
1656
1657 PATHS_LIST="
1658     bindir
1659     datadir
1660     docdir
1661     incdir
1662     libdir
1663     mandir
1664     prefix
1665     shlibdir
1666 "
1667
1668 CMDLINE_SET="
1669     $PATHS_LIST
1670     ar
1671     arch
1672     as
1673     build_suffix
1674     cc
1675     cpu
1676     cross_prefix
1677     dep_cc
1678     env
1679     extra_version
1680     host_cc
1681     host_cflags
1682     host_ld
1683     host_ldflags
1684     host_libs
1685     host_os
1686     ld
1687     logfile
1688     malloc_prefix
1689     nm
1690     optflags
1691     pkg_config
1692     pkg_config_flags
1693     random_seed
1694     samples
1695     sysinclude
1696     sysroot
1697     target_exec
1698     target_os
1699     target_path
1700     target_samples
1701     toolchain
1702 "
1703
1704 CMDLINE_APPEND="
1705     extra_cflags
1706     host_cppflags
1707 "
1708
1709 # code dependency declarations
1710
1711 # architecture extensions
1712
1713 armv5te_deps="arm"
1714 armv6_deps="arm"
1715 armv6t2_deps="arm"
1716 armv8_deps="aarch64"
1717 neon_deps_any="aarch64 arm"
1718 intrinsics_neon_deps="neon"
1719 vfp_deps_any="aarch64 arm"
1720 vfpv3_deps="vfp"
1721
1722 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1723
1724 altivec_deps="ppc"
1725 ppc4xx_deps="ppc"
1726 vsx_deps="altivec"
1727 power8_deps="vsx"
1728
1729 cpunop_deps="i686"
1730 x86_64_select="i686"
1731 x86_64_suggest="fast_cmov"
1732
1733 amd3dnow_deps="mmx"
1734 amd3dnowext_deps="amd3dnow"
1735 i686_deps="x86"
1736 mmx_deps="x86"
1737 mmxext_deps="mmx"
1738 sse_deps="mmxext"
1739 sse2_deps="sse"
1740 sse3_deps="sse2"
1741 ssse3_deps="sse3"
1742 sse4_deps="ssse3"
1743 sse42_deps="sse4"
1744 avx_deps="sse42"
1745 xop_deps="avx"
1746 fma3_deps="avx"
1747 fma4_deps="avx"
1748 avx2_deps="avx"
1749
1750 mmx_external_deps="yasm"
1751 mmx_inline_deps="inline_asm"
1752 mmx_suggest="mmx_external mmx_inline"
1753
1754 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1755     eval dep=\$${ext}_deps
1756     eval ${ext}_external_deps='"${dep}_external"'
1757     eval ${ext}_inline_deps='"${dep}_inline"'
1758     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1759 done
1760
1761 aligned_stack_if_any="aarch64 ppc x86"
1762 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1763 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1764 fast_unaligned_if_any="aarch64 ppc x86"
1765 simd_align_16_if_any="altivec neon sse"
1766
1767 # system capabilities
1768 symver_if_any="symver_asm_label symver_gnu_asm"
1769 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1770
1771 # threading support
1772 atomics_gcc_if="sync_val_compare_and_swap"
1773 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1774 atomics_win32_if="MemoryBarrier"
1775 atomics_native_if_any="$ATOMICS_LIST"
1776 w32threads_deps="atomics_native"
1777 threads_if_any="$THREADS_LIST"
1778
1779 # subsystems
1780 dct_select="rdft"
1781 error_resilience_select="me_cmp"
1782 faandct_deps="faan fdctdsp"
1783 faanidct_deps="faan idctdsp"
1784 intrax8_select="error_resilience"
1785 mdct_select="fft"
1786 rdft_select="fft"
1787 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1788 mpeg_er_select="error_resilience"
1789 mpegaudio_select="mpegaudiodsp"
1790 mpegaudiodsp_select="dct"
1791 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1792 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1793 nvenc_deps_any="dlopen LoadLibrary"
1794 nvenc_extralibs='$ldl'
1795 qsvdec_select="qsv"
1796 qsvenc_select="qsv"
1797
1798 # decoders / encoders
1799 aac_decoder_select="imdct15 mdct sinewin"
1800 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1801 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1802 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1803 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1804 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1805 aic_decoder_select="golomb idctdsp"
1806 alac_encoder_select="lpc"
1807 als_decoder_select="bswapdsp"
1808 amrnb_decoder_select="lsp"
1809 amrwb_decoder_select="lsp"
1810 amv_decoder_select="sp5x_decoder"
1811 ape_decoder_select="bswapdsp"
1812 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1813 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1814 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1815 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1816 atrac1_decoder_select="mdct sinewin"
1817 atrac3_decoder_select="mdct"
1818 atrac3p_decoder_select="mdct sinewin"
1819 bink_decoder_select="blockdsp hpeldsp"
1820 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1821 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1822 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1823 cllc_decoder_select="bswapdsp"
1824 comfortnoise_encoder_select="lpc"
1825 cook_decoder_select="audiodsp mdct sinewin"
1826 cscd_decoder_select="lzo"
1827 cscd_decoder_suggest="zlib"
1828 dca_decoder_select="fmtconvert mdct"
1829 dds_decoder_select="texturedsp"
1830 dnxhd_decoder_select="blockdsp idctdsp"
1831 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1832 dvvideo_decoder_select="dvprofile idctdsp"
1833 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1834 dxa_decoder_deps="zlib"
1835 eac3_decoder_select="ac3_decoder"
1836 eac3_encoder_select="ac3_encoder"
1837 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1838 eatgq_decoder_select="aandcttables idctdsp"
1839 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1840 exr_decoder_deps="zlib"
1841 ffv1_decoder_select="golomb rangecoder"
1842 ffv1_encoder_select="rangecoder"
1843 ffvhuff_decoder_select="huffyuv_decoder"
1844 ffvhuff_encoder_select="huffyuv_encoder"
1845 fic_decoder_select="golomb"
1846 flac_decoder_select="flacdsp golomb"
1847 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1848 flashsv_decoder_deps="zlib"
1849 flashsv_encoder_deps="zlib"
1850 flashsv2_decoder_deps="zlib"
1851 flv_decoder_select="h263_decoder"
1852 flv_encoder_select="h263_encoder"
1853 fourxm_decoder_select="blockdsp bswapdsp"
1854 fraps_decoder_select="bswapdsp huffman"
1855 g2m_decoder_deps="zlib"
1856 g2m_decoder_select="blockdsp idctdsp jpegtables"
1857 h261_decoder_select="mpeg_er mpegvideo"
1858 h261_encoder_select="aandcttables mpegvideoenc"
1859 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1860 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1861 h263i_decoder_select="h263_decoder"
1862 h263p_encoder_select="h263_encoder"
1863 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1864 h264_decoder_suggest="error_resilience"
1865 h264_nvenc_encoder_deps="nvenc"
1866 h264_qsv_decoder_deps="libmfx"
1867 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1868 h264_qsv_encoder_deps="libmfx"
1869 h264_qsv_encoder_select="qsvenc"
1870 hap_decoder_select="snappy texturedsp"
1871 hap_encoder_deps="libsnappy"
1872 hap_encoder_select="texturedspenc"
1873 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1874 hevc_nvenc_encoder_deps="nvenc"
1875 hevc_qsv_encoder_deps="libmfx"
1876 hevc_qsv_encoder_select="qsvenc"
1877 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1878 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1879 iac_decoder_select="imc_decoder"
1880 imc_decoder_select="bswapdsp fft mdct sinewin"
1881 indeo3_decoder_select="hpeldsp"
1882 indeo4_decoder_select="ividsp"
1883 indeo5_decoder_select="ividsp"
1884 interplay_video_decoder_select="hpeldsp"
1885 jpegls_decoder_select="golomb mjpeg_decoder"
1886 jpegls_encoder_select="golomb"
1887 jv_decoder_select="blockdsp"
1888 lagarith_decoder_select="huffyuvdsp"
1889 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1890 loco_decoder_select="golomb"
1891 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1892 metasound_decoder_select="lsp mdct sinewin"
1893 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1894 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1895 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1896 mjpegb_decoder_select="mjpeg_decoder"
1897 mlp_decoder_select="mlp_parser"
1898 motionpixels_decoder_select="bswapdsp"
1899 mp1_decoder_select="mpegaudio"
1900 mp1float_decoder_select="mpegaudio"
1901 mp2_decoder_select="mpegaudio"
1902 mp2float_decoder_select="mpegaudio"
1903 mp3_decoder_select="mpegaudio"
1904 mp3adu_decoder_select="mpegaudio"
1905 mp3adufloat_decoder_select="mpegaudio"
1906 mp3float_decoder_select="mpegaudio"
1907 mp3on4_decoder_select="mpegaudio"
1908 mp3on4float_decoder_select="mpegaudio"
1909 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1910 mpc8_decoder_select="mpegaudiodsp"
1911 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1912 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1913 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1914 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1915 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1916 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1917 mpeg2_qsv_encoder_deps="libmfx"
1918 mpeg2_qsv_encoder_select="qsvenc"
1919 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1920 mpeg4_encoder_select="h263_encoder"
1921 msmpeg4v1_decoder_select="h263_decoder"
1922 msmpeg4v2_decoder_select="h263_decoder"
1923 msmpeg4v2_encoder_select="h263_encoder"
1924 msmpeg4v3_decoder_select="h263_decoder"
1925 msmpeg4v3_encoder_select="h263_encoder"
1926 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1927 mxpeg_decoder_select="mjpeg_decoder"
1928 nellymoser_decoder_select="mdct sinewin"
1929 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1930 nuv_decoder_select="idctdsp lzo"
1931 on2avc_decoder_select="mdct"
1932 opus_decoder_deps="avresample"
1933 opus_decoder_select="imdct15"
1934 png_decoder_deps="zlib"
1935 png_encoder_deps="zlib"
1936 png_encoder_select="huffyuvencdsp"
1937 prores_decoder_select="idctdsp"
1938 prores_encoder_select="fdctdsp"
1939 qcelp_decoder_select="lsp"
1940 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1941 ra_144_encoder_select="audio_frame_queue lpc"
1942 ralf_decoder_select="golomb"
1943 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1944 rv10_encoder_select="h263_encoder"
1945 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1946 rv20_encoder_select="h263_encoder"
1947 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1948 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1949 shorten_decoder_select="golomb"
1950 sipr_decoder_select="lsp"
1951 sp5x_decoder_select="mjpeg_decoder"
1952 svq1_decoder_select="hpeldsp"
1953 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1954 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1955 svq3_decoder_suggest="zlib"
1956 tak_decoder_select="audiodsp"
1957 tdsc_decoder_deps="zlib"
1958 tdsc_decoder_select="mjpeg_decoder"
1959 theora_decoder_select="vp3_decoder"
1960 thp_decoder_select="mjpeg_decoder"
1961 tiff_decoder_suggest="zlib"
1962 tiff_encoder_suggest="zlib"
1963 truehd_decoder_select="mlp_decoder"
1964 truemotion2_decoder_select="bswapdsp"
1965 truespeech_decoder_select="bswapdsp"
1966 tscc_decoder_deps="zlib"
1967 txd_decoder_select="texturedsp"
1968 twinvq_decoder_select="mdct lsp sinewin"
1969 utvideo_decoder_select="bswapdsp"
1970 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1971 vble_decoder_select="huffyuvdsp"
1972 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1973 vc1image_decoder_select="vc1_decoder"
1974 vorbis_decoder_select="mdct"
1975 vorbis_encoder_select="mdct"
1976 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1977 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1978 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1979 vp6a_decoder_select="vp6_decoder"
1980 vp6f_decoder_select="vp6_decoder"
1981 vp7_decoder_select="h264pred videodsp"
1982 vp8_decoder_select="h264pred videodsp"
1983 vp9_decoder_select="videodsp"
1984 webp_decoder_select="vp8_decoder"
1985 wmapro_decoder_select="mdct sinewin wma_freqs"
1986 wmav1_decoder_select="mdct sinewin wma_freqs"
1987 wmav1_encoder_select="mdct sinewin wma_freqs"
1988 wmav2_decoder_select="mdct sinewin wma_freqs"
1989 wmav2_encoder_select="mdct sinewin wma_freqs"
1990 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1991 wmv1_decoder_select="h263_decoder"
1992 wmv1_encoder_select="h263_encoder"
1993 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
1994 wmv2_encoder_select="h263_encoder"
1995 wmv3_decoder_select="vc1_decoder"
1996 wmv3image_decoder_select="wmv3_decoder"
1997 zerocodec_decoder_deps="zlib"
1998 zlib_decoder_deps="zlib"
1999 zlib_encoder_deps="zlib"
2000 zmbv_decoder_deps="zlib"
2001 zmbv_encoder_deps="zlib"
2002
2003 # hardware accelerators
2004 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2005 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2006 vaapi_deps="va_va_h"
2007 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2008 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2009 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2010
2011 h263_vaapi_hwaccel_deps="vaapi"
2012 h263_vaapi_hwaccel_select="h263_decoder"
2013 h263_vdpau_hwaccel_deps="vdpau"
2014 h263_vdpau_hwaccel_select="h263_decoder"
2015 h264_d3d11va_hwaccel_deps="d3d11va"
2016 h264_d3d11va_hwaccel_select="h264_decoder"
2017 h264_dxva2_hwaccel_deps="dxva2"
2018 h264_dxva2_hwaccel_select="h264_decoder"
2019 h264_mmal_decoder_deps="mmal"
2020 h264_mmal_hwaccel_deps="mmal"
2021 h264_mmal_decoder_select="h264_decoder"
2022 h264_mmal_encoder_deps="mmal"
2023 h264_qsv_hwaccel_deps="libmfx"
2024 h264_vaapi_hwaccel_deps="vaapi"
2025 h264_vaapi_hwaccel_select="h264_decoder"
2026 h264_vda_hwaccel_deps="vda"
2027 h264_vda_hwaccel_select="h264_decoder"
2028 h264_vda_old_hwaccel_deps="vda"
2029 h264_vda_old_hwaccel_select="h264_decoder"
2030 h264_vdpau_hwaccel_deps="vdpau"
2031 h264_vdpau_hwaccel_select="h264_decoder"
2032 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2033 hevc_d3d11va_hwaccel_select="hevc_decoder"
2034 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2035 hevc_dxva2_hwaccel_select="hevc_decoder"
2036 mpeg1_vdpau_hwaccel_deps="vdpau"
2037 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2038 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2039 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2040 mpeg2_dxva2_hwaccel_deps="dxva2"
2041 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2042 mpeg2_vaapi_hwaccel_deps="vaapi"
2043 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2044 mpeg2_vdpau_hwaccel_deps="vdpau"
2045 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2046 mpeg4_vaapi_hwaccel_deps="vaapi"
2047 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2048 mpeg4_vdpau_hwaccel_deps="vdpau"
2049 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2050 vc1_d3d11va_hwaccel_deps="d3d11va"
2051 vc1_d3d11va_hwaccel_select="vc1_decoder"
2052 vc1_dxva2_hwaccel_deps="dxva2"
2053 vc1_dxva2_hwaccel_select="vc1_decoder"
2054 vc1_vaapi_hwaccel_deps="vaapi"
2055 vc1_vaapi_hwaccel_select="vc1_decoder"
2056 vc1_vdpau_hwaccel_deps="vdpau"
2057 vc1_vdpau_hwaccel_select="vc1_decoder"
2058 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2059 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2060 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2061 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2062
2063 # parsers
2064 h264_parser_select="h264_decoder"
2065 hevc_parser_select="golomb"
2066 mpegvideo_parser_select="mpegvideo"
2067 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2068 vc1_parser_select="mpegvideo startcode vc1_decoder"
2069
2070 # bitstream_filters
2071 mjpeg2jpeg_bsf_select="jpegtables"
2072
2073 # external libraries
2074 libdcadec_decoder_deps="libdcadec"
2075 libfaac_encoder_deps="libfaac"
2076 libfaac_encoder_select="audio_frame_queue"
2077 libfdk_aac_decoder_deps="libfdk_aac"
2078 libfdk_aac_encoder_deps="libfdk_aac"
2079 libfdk_aac_encoder_select="audio_frame_queue"
2080 libgsm_decoder_deps="libgsm"
2081 libgsm_encoder_deps="libgsm"
2082 libgsm_ms_decoder_deps="libgsm"
2083 libgsm_ms_encoder_deps="libgsm"
2084 libilbc_decoder_deps="libilbc"
2085 libilbc_encoder_deps="libilbc"
2086 libmp3lame_encoder_deps="libmp3lame"
2087 libmp3lame_encoder_select="audio_frame_queue"
2088 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2089 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2090 libopencore_amrnb_encoder_select="audio_frame_queue"
2091 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2092 libopenh264_encoder_deps="libopenh264"
2093 libopenjpeg_decoder_deps="libopenjpeg"
2094 libopenjpeg_encoder_deps="libopenjpeg"
2095 libopus_decoder_deps="libopus"
2096 libopus_encoder_deps="libopus"
2097 libopus_encoder_select="audio_frame_queue"
2098 libschroedinger_decoder_deps="libschroedinger"
2099 libschroedinger_encoder_deps="libschroedinger"
2100 libspeex_decoder_deps="libspeex"
2101 libspeex_encoder_deps="libspeex"
2102 libspeex_encoder_select="audio_frame_queue"
2103 libtheora_encoder_deps="libtheora"
2104 libtwolame_encoder_deps="libtwolame"
2105 libvo_aacenc_encoder_deps="libvo_aacenc"
2106 libvo_aacenc_encoder_select="audio_frame_queue"
2107 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2108 libvorbis_encoder_deps="libvorbis"
2109 libvorbis_encoder_select="audio_frame_queue"
2110 libvpx_vp8_decoder_deps="libvpx"
2111 libvpx_vp8_encoder_deps="libvpx"
2112 libvpx_vp9_decoder_deps="libvpx"
2113 libvpx_vp9_encoder_deps="libvpx"
2114 libwavpack_encoder_deps="libwavpack"
2115 libwebp_encoder_deps="libwebp"
2116 libx262_encoder_deps="libx262"
2117 libx264_encoder_deps="libx264"
2118 libx265_encoder_deps="libx265"
2119 libxavs_encoder_deps="libxavs"
2120 libxvid_encoder_deps="libxvid"
2121
2122 # demuxers / muxers
2123 ac3_demuxer_select="ac3_parser"
2124 asf_demuxer_select="riffdec"
2125 asf_muxer_select="riffenc"
2126 asf_stream_muxer_select="asf_muxer"
2127 avi_demuxer_select="riffdec"
2128 avi_muxer_select="riffenc"
2129 avisynth_demuxer_deps="avisynth"
2130 avisynth_demuxer_select="riffdec"
2131 caf_demuxer_select="riffdec"
2132 dash_muxer_select="mp4_muxer"
2133 dirac_demuxer_select="dirac_parser"
2134 dv_demuxer_select="dvprofile"
2135 dv_muxer_select="dvprofile"
2136 dxa_demuxer_select="riffdec"
2137 eac3_demuxer_select="ac3_parser"
2138 f4v_muxer_select="mov_muxer"
2139 flac_demuxer_select="flac_parser"
2140 hds_muxer_select="flv_muxer"
2141 hls_muxer_select="mpegts_muxer"
2142 ipod_muxer_select="mov_muxer"
2143 ismv_muxer_select="mov_muxer"
2144 matroska_audio_muxer_select="matroska_muxer"
2145 matroska_demuxer_select="riffdec"
2146 matroska_demuxer_suggest="bzlib lzo zlib"
2147 matroska_muxer_select="riffenc"
2148 mmf_muxer_select="riffenc"
2149 mov_demuxer_select="riffdec"
2150 mov_demuxer_suggest="zlib"
2151 mov_muxer_select="riffenc rtpenc_chain"
2152 mp3_demuxer_select="mpegaudio_parser"
2153 mp4_muxer_select="mov_muxer"
2154 mpegts_muxer_select="adts_muxer latm_muxer"
2155 mpegtsraw_demuxer_select="mpegts_demuxer"
2156 mxf_d10_muxer_select="mxf_muxer"
2157 nut_muxer_select="riffenc"
2158 nuv_demuxer_select="riffdec"
2159 oga_muxer_select="ogg_muxer"
2160 ogg_demuxer_select="golomb"
2161 opus_muxer_select="ogg_muxer"
2162 psp_muxer_select="mov_muxer"
2163 rtp_demuxer_select="sdp_demuxer"
2164 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2165 rtsp_demuxer_select="http_protocol rtpdec"
2166 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2167 sap_demuxer_select="sdp_demuxer"
2168 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2169 sdp_demuxer_select="rtpdec"
2170 smoothstreaming_muxer_select="ismv_muxer"
2171 spdif_muxer_select="aac_parser"
2172 spx_muxer_select="ogg_muxer"
2173 tak_demuxer_select="tak_parser"
2174 tg2_muxer_select="mov_muxer"
2175 tgp_muxer_select="mov_muxer"
2176 w64_demuxer_select="wav_demuxer"
2177 wav_demuxer_select="riffdec"
2178 wav_muxer_select="riffenc"
2179 webm_muxer_select="riffenc"
2180 wtv_demuxer_select="riffdec"
2181 xmv_demuxer_select="riffdec"
2182 xwma_demuxer_select="riffdec"
2183
2184 # indevs / outdevs
2185 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2186 alsa_outdev_deps="alsa_asoundlib_h"
2187 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2188 dv1394_indev_deps="dv1394"
2189 dv1394_indev_select="dv_demuxer"
2190 fbdev_indev_deps="linux_fb_h"
2191 jack_indev_deps="jack_jack_h pthreads"
2192 libcdio_indev_deps="libcdio"
2193 libdc1394_indev_deps="libdc1394"
2194 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2195 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2196 pulse_indev_deps="libpulse"
2197 sndio_indev_deps="sndio_h"
2198 sndio_outdev_deps="sndio_h"
2199 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2200 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2201 vfwcap_indev_extralibs="-lavicap32"
2202 x11grab_indev_deps="x11grab"
2203 x11grab_xcb_indev_deps="libxcb"
2204
2205 # protocols
2206 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2207 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2208 ffrtmpcrypt_protocol_select="tcp_protocol"
2209 ffrtmphttp_protocol_deps="!librtmp_protocol"
2210 ffrtmphttp_protocol_select="http_protocol"
2211 gopher_protocol_select="network"
2212 http_protocol_select="tcp_protocol"
2213 httpproxy_protocol_select="tcp_protocol"
2214 https_protocol_select="tls_protocol"
2215 icecast_protocol_select="http_protocol"
2216 librtmp_protocol_deps="librtmp"
2217 librtmpe_protocol_deps="librtmp"
2218 librtmps_protocol_deps="librtmp"
2219 librtmpt_protocol_deps="librtmp"
2220 librtmpte_protocol_deps="librtmp"
2221 mmsh_protocol_select="http_protocol"
2222 mmst_protocol_select="network"
2223 rtmp_protocol_deps="!librtmp_protocol"
2224 rtmp_protocol_select="tcp_protocol"
2225 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2226 rtmps_protocol_deps="!librtmp_protocol"
2227 rtmps_protocol_select="tls_protocol"
2228 rtmpt_protocol_select="ffrtmphttp_protocol"
2229 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2230 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2231 rtp_protocol_select="udp_protocol"
2232 sctp_protocol_deps="struct_sctp_event_subscribe"
2233 sctp_protocol_select="network"
2234 srtp_protocol_select="rtp_protocol"
2235 tcp_protocol_select="network"
2236 tls_gnutls_protocol_deps="gnutls"
2237 tls_gnutls_protocol_select="tcp_protocol"
2238 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2239 tls_openssl_protocol_select="tcp_protocol"
2240 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2241 udp_protocol_select="network"
2242 unix_protocol_deps="sys_un_h"
2243 unix_protocol_select="network"
2244
2245 # filters
2246 blackframe_filter_deps="gpl"
2247 boxblur_filter_deps="gpl"
2248 bs2b_filter_deps="libbs2b"
2249 cropdetect_filter_deps="gpl"
2250 delogo_filter_deps="gpl"
2251 drawtext_filter_deps="libfreetype"
2252 frei0r_filter_deps="frei0r dlopen"
2253 frei0r_filter_extralibs='$ldl'
2254 frei0r_src_filter_deps="frei0r dlopen"
2255 frei0r_src_filter_extralibs='$ldl'
2256 hqdn3d_filter_deps="gpl"
2257 interlace_filter_deps="gpl"
2258 ocv_filter_deps="libopencv"
2259 resample_filter_deps="avresample"
2260 scale_filter_deps="swscale"
2261
2262 # examples
2263 avcodec_example_deps="avcodec avutil"
2264 filter_audio_example_deps="avfilter avutil"
2265 metadata_example_deps="avformat avutil"
2266 output_example_deps="avcodec avformat avutil swscale"
2267 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2268 transcode_aac_example_deps="avcodec avformat avresample"
2269
2270 # libraries, in linking order
2271 avcodec_deps="avutil"
2272 avdevice_deps="avformat avcodec avutil"
2273 avfilter_deps="avutil"
2274 avformat_deps="avcodec avutil"
2275 avresample_deps="avutil"
2276 swscale_deps="avutil"
2277
2278 # programs
2279 avconv_deps="avcodec avfilter avformat avresample swscale"
2280 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2281                fps_filter null_filter resample_filter scale_filter
2282                setpts_filter trim_filter"
2283 avplay_deps="avcodec avformat avresample swscale sdl"
2284 avplay_libs='$sdl_libs'
2285 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2286 avprobe_deps="avcodec avformat"
2287
2288 # documentation
2289 pod2man_deps="doc"
2290 texi2html_deps="doc"
2291
2292 # default parameters
2293
2294 logfile="config.log"
2295
2296 # installation paths
2297 prefix_default="/usr/local"
2298 bindir_default='${prefix}/bin'
2299 datadir_default='${prefix}/share/avconv'
2300 docdir_default='${prefix}/share/doc/libav'
2301 incdir_default='${prefix}/include'
2302 libdir_default='${prefix}/lib'
2303 mandir_default='${prefix}/share/man'
2304 shlibdir_default="$libdir_default"
2305
2306 # toolchain
2307 ar_default="ar"
2308 cc_default="gcc"
2309 host_cc_default="gcc"
2310 cp_f="cp -f"
2311 ln_s="ln -s -f"
2312 nm_default="nm -g"
2313 objformat="elf"
2314 pkg_config_default=pkg-config
2315 ranlib="ranlib"
2316 strip="strip"
2317 yasmexe="yasm"
2318
2319 # machine
2320 arch_default=$(uname -m)
2321 cpu="generic"
2322 intrinsics="none"
2323
2324 # OS
2325 target_os_default=$(tolower $(uname -s))
2326 host_os=$target_os_default
2327
2328 # configurable options
2329 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2330
2331 enable asm
2332 enable debug
2333 enable doc
2334 enable faan faandct faanidct
2335 enable optimizations
2336 enable safe_bitstream_reader
2337 enable static
2338 enable swscale_alpha
2339 enable valgrind_backtrace
2340
2341 # By default, enable only those hwaccels that have no external dependencies.
2342 enable d3d11va dxva2 vda vdpau
2343
2344 # build settings
2345 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2346 LIBPREF="lib"
2347 LIBSUF=".a"
2348 FULLNAME='$(NAME)$(BUILDSUF)'
2349 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2350 SLIBPREF="lib"
2351 SLIBSUF=".so"
2352 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2353 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2354 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2355 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2356 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2357 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2358
2359 asflags_filter=echo
2360 cflags_filter=echo
2361 ldflags_filter=echo
2362
2363 AS_C='-c'
2364 AS_O='-o $@'
2365 CC_C='-c'
2366 CC_E='-E -o $@'
2367 CC_O='-o $@'
2368 LD_O='-o $@'
2369 LD_LIB='-l%'
2370 LD_PATH='-L'
2371 HOSTCC_C='-c'
2372 HOSTCC_E='-E -o $@'
2373 HOSTCC_O='-o $@'
2374 HOSTLD_O='-o $@'
2375
2376 host_libs='-lm'
2377 host_cflags_filter=echo
2378 host_ldflags_filter=echo
2379
2380 target_path='$(CURDIR)'
2381
2382 # since the object filename is not given with the -MM flag, the compiler
2383 # is only able to print the basename, and we must add the path ourselves
2384 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2385 DEPFLAGS='-MM'
2386
2387 # find source path
2388 if test -f configure; then
2389     source_path=.
2390 else
2391     source_path=$(cd $(dirname "$0"); pwd)
2392     echo "$source_path" | grep -q '[[:blank:]]' &&
2393         die "Out of tree builds are impossible with whitespace in source path."
2394     test -e "$source_path/config.h" &&
2395         die "Out of tree builds are impossible with config.h in source dir."
2396 fi
2397
2398 for v in "$@"; do
2399     r=${v#*=}
2400     l=${v%"$r"}
2401     r=$(sh_quote "$r")
2402     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2403 done
2404
2405 find_things(){
2406     thing=$1
2407     pattern=$2
2408     file=$source_path/$3
2409     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2410 }
2411
2412 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2413 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2414 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2415 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2416 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2417 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2418 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2419 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2420 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2421 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2422 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2423
2424 ALL_COMPONENTS="
2425     $BSF_LIST
2426     $DECODER_LIST
2427     $DEMUXER_LIST
2428     $ENCODER_LIST
2429     $FILTER_LIST
2430     $HWACCEL_LIST
2431     $INDEV_LIST
2432     $MUXER_LIST
2433     $OUTDEV_LIST
2434     $PARSER_LIST
2435     $PROTOCOL_LIST
2436 "
2437
2438 for n in $COMPONENT_LIST; do
2439     v=$(toupper ${n%s})_LIST
2440     eval enable \$$v
2441     eval ${n}_if_any="\$$v"
2442 done
2443
2444 enable $ARCH_EXT_LIST
2445
2446 die_unknown(){
2447     echo "Unknown option \"$1\"."
2448     echo "See $0 --help for available options."
2449     exit 1
2450 }
2451
2452 print_3_columns() {
2453     cat | tr ' ' '\n' | sort | pr -r -3 -t
2454 }
2455
2456 show_list() {
2457     suffix=_$1
2458     shift
2459     echo $* | sed s/$suffix//g | print_3_columns
2460     exit 0
2461 }
2462
2463 rand_list(){
2464     IFS=', '
2465     set -- $*
2466     unset IFS
2467     for thing; do
2468         comp=${thing%:*}
2469         prob=${thing#$comp}
2470         prob=${prob#:}
2471         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2472         echo "prob ${prob:-0.5}"
2473         printf '%s\n' $comp
2474     done
2475 }
2476
2477 do_random(){
2478     action=$1
2479     shift
2480     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2481     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2482 }
2483
2484 for opt do
2485     optval="${opt#*=}"
2486     case "$opt" in
2487         --extra-ldflags=*)
2488             add_ldflags $optval
2489         ;;
2490         --extra-ldexeflags=*)
2491             add_ldexeflags $optval
2492         ;;
2493         --extra-libs=*)
2494             add_extralibs $optval
2495         ;;
2496         --disable-devices)
2497             disable $INDEV_LIST $OUTDEV_LIST
2498         ;;
2499         --enable-debug=*)
2500             debuglevel="$optval"
2501         ;;
2502         --disable-programs)
2503             disable $PROGRAM_LIST
2504         ;;
2505         --disable-everything)
2506             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2507         ;;
2508         --disable-all)
2509             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2510             disable $LIBRARY_LIST $PROGRAM_LIST doc
2511         ;;
2512         --enable-random|--disable-random)
2513             action=${opt%%-random}
2514             do_random ${action#--} $COMPONENT_LIST
2515         ;;
2516         --enable-random=*|--disable-random=*)
2517             action=${opt%%-random=*}
2518             do_random ${action#--} $optval
2519         ;;
2520         --enable-*=*|--disable-*=*)
2521             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2522             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2523             eval list=\$$(toupper $thing)_LIST
2524             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2525             $action $(filter "$name" $list)
2526         ;;
2527         --enable-avserver|--disable-avserver*)
2528             warn "avserver has been removed, the ${opt} option is only"\
2529                  "provided for compatibility and will be removed in the future"
2530         ;;
2531         --enable-?*|--disable-?*)
2532             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2533             if is_in $option $COMPONENT_LIST; then
2534                 test $action = disable && action=unset
2535                 eval $action \$$(toupper ${option%s})_LIST
2536             elif is_in $option $CMDLINE_SELECT; then
2537                 $action $option
2538             else
2539                 die_unknown $opt
2540             fi
2541         ;;
2542         --list-*)
2543             NAME="${opt#--list-}"
2544             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2545             NAME=${NAME%s}
2546             eval show_list $NAME \$$(toupper $NAME)_LIST
2547         ;;
2548         --help|-h) show_help
2549         ;;
2550         *)
2551             optname="${opt%%=*}"
2552             optname="${optname#--}"
2553             optname=$(echo "$optname" | sed 's/-/_/g')
2554             if is_in $optname $CMDLINE_SET; then
2555                 eval $optname='$optval'
2556             elif is_in $optname $CMDLINE_APPEND; then
2557                 append $optname "$optval"
2558             else
2559                 die_unknown $opt
2560             fi
2561         ;;
2562     esac
2563 done
2564
2565 for e in $env; do
2566     eval "export $e"
2567 done
2568
2569 disabled logging && logfile=/dev/null
2570
2571 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2572 set >> $logfile
2573
2574 case "$toolchain" in
2575     clang-asan)
2576         cc_default="clang"
2577         add_cflags  -fsanitize=address
2578         add_ldflags -fsanitize=address
2579     ;;
2580     clang-tsan)
2581         cc_default="clang"
2582         add_cflags  -fsanitize=thread -pie
2583         add_ldflags -fsanitize=thread -pie
2584     ;;
2585     clang-usan)
2586         cc_default="clang"
2587         add_cflags  -fsanitize=undefined -O1
2588         add_ldflags -fsanitize=undefined
2589     ;;
2590     gcc-asan)
2591         cc_default="gcc"
2592         add_cflags  -fsanitize=address
2593         add_ldflags -fsanitize=address
2594     ;;
2595     gcc-tsan)
2596         cc_default="gcc"
2597         add_cflags  -fsanitize=thread -pie -fPIC
2598         add_ldflags -fsanitize=thread -pie -fPIC
2599     ;;
2600     gcc-usan)
2601         cc_default="gcc"
2602         add_cflags  -fsanitize=undefined
2603         add_ldflags -fsanitize=undefined
2604     ;;
2605     valgrind-massif)
2606         target_exec_default="valgrind"
2607         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2608     ;;
2609     valgrind-memcheck)
2610         target_exec_default="valgrind"
2611         target_exec_args="--track-origins=yes --leak-check=full"
2612     ;;
2613     msvc)
2614         # Check whether the current MSVC version needs the C99 converter.
2615         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2616         # support enough of C99 to build libav. Default to the new
2617         # behaviour if the regexp was unable to match anything, since this
2618         # successfully parses the version number of existing supported
2619         # versions that require the converter (MSVC 2010 and 2012).
2620         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2621         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2622             cc_default="cl"
2623         else
2624             cc_default="c99wrap cl"
2625         fi
2626         ld_default="link"
2627         nm_default="dumpbin -symbols"
2628         ar_default="lib"
2629         target_os_default="win32"
2630         # Use a relative path for TMPDIR. This makes sure all the
2631         # ffconf temp files are written with a relative path, avoiding
2632         # issues with msys/win32 path conversion for MSVC parameters
2633         # such as -Fo<file> or -out:<file>.
2634         TMPDIR=.
2635     ;;
2636     icl)
2637         cc_default="icl"
2638         ld_default="xilink"
2639         nm_default="dumpbin -symbols"
2640         ar_default="xilib"
2641         target_os_default="win32"
2642         TMPDIR=.
2643     ;;
2644     gcov)
2645         add_cflags  -fprofile-arcs -ftest-coverage
2646         add_ldflags -fprofile-arcs -ftest-coverage
2647     ;;
2648     hardened)
2649         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2650         add_cflags   -fno-strict-overflow -fstack-protector-all
2651         add_ldflags  -Wl,-z,relro -Wl,-z,now
2652     ;;
2653     ?*)
2654         die "Unknown toolchain $toolchain"
2655     ;;
2656 esac
2657
2658 test -n "$cross_prefix" && enable cross_compile
2659
2660 if enabled cross_compile; then
2661     test -n "$arch" && test -n "$target_os" ||
2662         die "Must specify target arch and OS when cross-compiling"
2663 fi
2664
2665 ar_default="${cross_prefix}${ar_default}"
2666 cc_default="${cross_prefix}${cc_default}"
2667 nm_default="${cross_prefix}${nm_default}"
2668 pkg_config_default="${cross_prefix}${pkg_config_default}"
2669 ranlib="${cross_prefix}${ranlib}"
2670 strip="${cross_prefix}${strip}"
2671
2672 sysinclude_default="${sysroot}/usr/include"
2673
2674 set_default arch cc pkg_config sysinclude target_exec target_os
2675 enabled cross_compile || host_cc_default=$cc
2676 set_default host_cc
2677
2678 if ! $pkg_config --version >/dev/null 2>&1; then
2679     warn "$pkg_config not found, library detection may fail."
2680     pkg_config=false
2681 fi
2682
2683 exesuf() {
2684     case $1 in
2685         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2686     esac
2687 }
2688
2689 EXESUF=$(exesuf $target_os)
2690 HOSTEXESUF=$(exesuf $host_os)
2691
2692 # set temporary file name
2693 : ${TMPDIR:=$TEMPDIR}
2694 : ${TMPDIR:=$TMP}
2695 : ${TMPDIR:=/tmp}
2696
2697 if ! check_cmd mktemp -u XXXXXX; then
2698     # simple replacement for missing mktemp
2699     # NOT SAFE FOR GENERAL USE
2700     mktemp(){
2701         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2702     }
2703 fi
2704
2705 tmpfile(){
2706     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2707         (set -C; exec > $tmp) 2>/dev/null ||
2708         die "Unable to create temporary file in $TMPDIR."
2709     append TMPFILES $tmp
2710     eval $1=$tmp
2711 }
2712
2713 trap 'rm -f -- $TMPFILES' EXIT
2714
2715 tmpfile TMPASM .asm
2716 tmpfile TMPC   .c
2717 tmpfile TMPE   $EXESUF
2718 tmpfile TMPH   .h
2719 tmpfile TMPO   .o
2720 tmpfile TMPS   .S
2721 tmpfile TMPSH  .sh
2722 tmpfile TMPV   .ver
2723
2724 unset -f mktemp
2725
2726 chmod +x $TMPE
2727
2728 # make sure we can execute files in $TMPDIR
2729 cat > $TMPSH 2>> $logfile <<EOF
2730 #! /bin/sh
2731 EOF
2732 chmod +x $TMPSH >> $logfile 2>&1
2733 if ! $TMPSH >> $logfile 2>&1; then
2734     cat <<EOF
2735 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2736 variable to another directory and make sure that it is not mounted noexec.
2737 EOF
2738     die "Sanity test failed."
2739 fi
2740
2741 armasm_flags(){
2742     for flag; do
2743         case $flag in
2744             # Filter out MSVC cl.exe options from cflags that shouldn't
2745             # be passed to gas-preprocessor
2746             -M[TD]*)                                            ;;
2747             *)                  echo $flag                      ;;
2748         esac
2749    done
2750 }
2751
2752 ccc_flags(){
2753     for flag; do
2754         case $flag in
2755             -std=c99)           echo -c99                       ;;
2756             -mcpu=*)            echo -arch ${flag#*=}           ;;
2757             -mieee)             echo -ieee                      ;;
2758             -O*|-fast)          echo $flag                      ;;
2759             -fno-math-errno)    echo -assume nomath_errno       ;;
2760             -g)                 echo -g3                        ;;
2761             -Wall)              echo -msg_enable level2         ;;
2762             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2763             -Wl,*)              echo $flag                      ;;
2764             -f*|-W*)                                            ;;
2765             *)                  echo $flag                      ;;
2766         esac
2767    done
2768 }
2769
2770 cparser_flags(){
2771     for flag; do
2772         case $flag in
2773             -Wno-switch)             echo -Wno-switch-enum ;;
2774             -Wno-format-zero-length) ;;
2775             -Wdisabled-optimization) ;;
2776             -Wno-pointer-sign)       echo -Wno-other ;;
2777             *)                       echo $flag ;;
2778         esac
2779     done
2780 }
2781
2782 msvc_common_flags(){
2783     for flag; do
2784         case $flag in
2785             # In addition to specifying certain flags under the compiler
2786             # specific filters, they must be specified here as well or else the
2787             # generic catch all at the bottom will print the original flag.
2788             -Wall)                ;;
2789             -std=c99)             ;;
2790             # Common flags
2791             -fomit-frame-pointer) ;;
2792             -g)                   echo -Z7 ;;
2793             -fno-math-errno)      ;;
2794             -fno-common)          ;;
2795             -fno-signed-zeros)    ;;
2796             -fPIC)                ;;
2797             -mthumb)              ;;
2798             -march=*)             ;;
2799             -lz)                  echo zlib.lib ;;
2800             -lavifil32)           echo vfw32.lib ;;
2801             -lavicap32)           echo vfw32.lib user32.lib ;;
2802             -l*)                  echo ${flag#-l}.lib ;;
2803             -L*)                  echo -libpath:${flag#-L} ;;
2804             *)                    echo $flag ;;
2805         esac
2806     done
2807 }
2808
2809 msvc_flags(){
2810     msvc_common_flags "$@"
2811     for flag; do
2812         case $flag in
2813             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2814                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2815                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2816                                        -wd4273 -wd4554 -wd4701 ;;
2817         esac
2818     done
2819 }
2820
2821 icl_flags(){
2822     msvc_common_flags "$@"
2823     for flag; do
2824         case $flag in
2825             # Despite what Intel's documentation says -Wall, which is supported
2826             # on Windows, does enable remarks so disable them here.
2827             -Wall)                echo $flag -Qdiag-disable:remark ;;
2828             -std=c99)             echo -Qstd=c99 ;;
2829         esac
2830     done
2831 }
2832
2833 pgi_flags(){
2834     for flag; do
2835         case $flag in
2836             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2837             -fomit-frame-pointer) echo -Mnoframe ;;
2838             -g)                   echo -gopt ;;
2839             *)                    echo $flag ;;
2840         esac
2841     done
2842 }
2843
2844 suncc_flags(){
2845     for flag; do
2846         case $flag in
2847             -march=*|-mcpu=*)
2848                 case "${flag#*=}" in
2849                     native)                   echo -xtarget=native       ;;
2850                     v9|niagara)               echo -xarch=sparc          ;;
2851                     ultrasparc)               echo -xarch=sparcvis       ;;
2852                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2853                     i586|pentium)             echo -xchip=pentium        ;;
2854                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2855                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2856                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2857                     pentium4*)          echo -xtarget=pentium4           ;;
2858                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2859                     *-sse3)             echo -xarch=sse3                 ;;
2860                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2861                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2862                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2863                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2864                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2865                     k8|opteron|athlon64|athlon-fx)
2866                                                echo -xarch=sse2a         ;;
2867                     athlon*)                   echo -xarch=pentium_proa  ;;
2868                 esac
2869                 ;;
2870             -std=c99)             echo -xc99              ;;
2871             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2872             -fPIC)                echo -KPIC -xcode=pic32 ;;
2873             -W*,*)                echo $flag              ;;
2874             -f*-*|-W*|-mimpure-text)                      ;;
2875             -shared)              echo -G                 ;;
2876             *)                    echo $flag              ;;
2877         esac
2878     done
2879 }
2880
2881 tms470_flags(){
2882     for flag; do
2883         case $flag in
2884             -march=*|-mcpu=*)
2885                 case "${flag#*=}" in
2886                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2887                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2888                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2889                     armv6*|arm11*)          echo -mv=6   ;;
2890                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2891                                             echo -mv=5e  ;;
2892                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2893                 esac
2894                 ;;
2895             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2896             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2897             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2898             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2899             -msoft-float)   echo --float_support=vfplib       ;;
2900             -O[0-3]|-mf=*)  echo $flag                        ;;
2901             -g)             echo -g -mn                       ;;
2902             -pds=*)         echo $flag                        ;;
2903             -D*|-I*)        echo $flag                        ;;
2904             --gcc|--abi=*)  echo $flag                        ;;
2905             -me)            echo $flag                        ;;
2906         esac
2907     done
2908 }
2909
2910 probe_cc(){
2911     pfx=$1
2912     _cc=$2
2913
2914     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2915     unset _ld_o _ldflags _ld_lib _ld_path
2916     unset _depflags _DEPCMD _DEPFLAGS
2917     _flags_filter=echo
2918
2919     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2920         _type=llvm_gcc
2921         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2922         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2923         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2924         _cflags_speed='-O3'
2925         _cflags_size='-Os'
2926     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2927         _type=gcc
2928         gcc_version=$($_cc --version | head -n1)
2929         gcc_basever=$($_cc -dumpversion)
2930         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2931         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2932         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2933         if ! $_cc -dumpversion | grep -q '^2\.'; then
2934             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2935         fi
2936         _cflags_speed='-O3'
2937         _cflags_size='-Os'
2938     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2939         _type=icc
2940         _ident=$($_cc --version | head -n1)
2941         _depflags='-MMD'
2942         _cflags_speed='-O3'
2943         _cflags_size='-Os'
2944         _cflags_noopt='-O1'
2945     elif $_cc -v 2>&1 | grep -q xlc; then
2946         _type=xlc
2947         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2948         _cflags_speed='-O5'
2949         _cflags_size='-O5 -qcompact'
2950     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2951         _type=ccc
2952         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2953         _DEPFLAGS='-M'
2954         _cflags_speed='-fast'
2955         _cflags_size='-O1'
2956         _flags_filter=ccc_flags
2957     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2958         test -d "$sysroot" || die "No valid sysroot specified."
2959         _type=armcc
2960         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2961         armcc_conf="$PWD/armcc.conf"
2962         $_cc --arm_linux_configure                 \
2963              --arm_linux_config_file="$armcc_conf" \
2964              --configure_sysroot="$sysroot"        \
2965              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2966              die "Error creating armcc configuration file."
2967         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2968         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2969         as_default="${cross_prefix}gcc"
2970         _depflags='-MMD'
2971         _cflags_speed='-O3'
2972         _cflags_size='-Os'
2973     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2974         _type=tms470
2975         _ident=$($_cc -version | head -n1 | tr -s ' ')
2976         _flags='--gcc --abi=eabi -me'
2977         _cc_e='-ppl -fe=$@'
2978         _cc_o='-fe=$@'
2979         _depflags='-ppa -ppd=$(@:.o=.d)'
2980         _cflags_speed='-O3 -mf=5'
2981         _cflags_size='-O3 -mf=2'
2982         _flags_filter=tms470_flags
2983     elif $_cc -v 2>&1 | grep -q clang; then
2984         _type=clang
2985         _ident=$($_cc --version | head -n1)
2986         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2987         _cflags_speed='-O3'
2988         _cflags_size='-Os'
2989     elif $_cc -V 2>&1 | grep -q Sun; then
2990         _type=suncc
2991         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2992         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2993         _DEPFLAGS='-xM1 -xc99'
2994         _ldflags='-std=c99'
2995         _cflags_speed='-O5'
2996         _cflags_size='-O5 -xspace'
2997         _flags_filter=suncc_flags
2998     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2999         _type=pathscale
3000         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3001         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3002         _cflags_speed='-O2'
3003         _cflags_size='-Os'
3004         _flags_filter='filter_out -Wdisabled-optimization'
3005     elif $_cc -v 2>&1 | grep -q Open64; then
3006         _type=open64
3007         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3008         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3009         _cflags_speed='-O2'
3010         _cflags_size='-Os'
3011         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3012     elif $_cc -V 2>&1 | grep -q Portland; then
3013         _type=pgi
3014         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3015         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3016         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3017         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3018         _cflags_noopt="-O1"
3019         _flags_filter=pgi_flags
3020     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3021         _type=armasm
3022         _ident=$($_cc | head -n1)
3023         # 4509: "This form of conditional instruction is deprecated"
3024         _flags="-nologo -ignore 4509"
3025         _flags_filter=armasm_flags
3026     elif $_cc 2>&1 | grep -q Microsoft; then
3027         _type=msvc
3028         _ident=$($_cc 2>&1 | head -n1)
3029         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3030         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3031         _cflags_speed="-O2"
3032         _cflags_size="-O1"
3033         if $_cc 2>&1 | grep -q Linker; then
3034             _ld_o='-out:$@'
3035         else
3036             _ld_o='-Fe$@'
3037         fi
3038         _cc_o='-Fo$@'
3039         _cc_e='-P -Fi$@'
3040         _flags_filter=msvc_flags
3041         _ld_lib='lib%.a'
3042         _ld_path='-libpath:'
3043         _flags='-nologo'
3044         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3045     elif $_cc 2>&1 | grep -q Intel; then
3046         _type=icl
3047         _ident=$($_cc 2>&1 | head -n1)
3048         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3049         # Not only is O3 broken on 13.x+ but it is slower on all previous
3050         # versions (tested) as well.
3051         _cflags_speed="-O2"
3052         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3053         if $_cc 2>&1 | grep -q Linker; then
3054             _ld_o='-out:$@'
3055         else
3056             _ld_o='-Fe$@'
3057         fi
3058         _cc_o='-Fo$@'
3059         _cc_e='-P'
3060         _flags_filter=icl_flags
3061         _ld_lib='lib%.a'
3062         _ld_path='-libpath:'
3063         # -Qdiag-error to make icl error when seeing certain unknown arguments
3064         _flags='-nologo -Qdiag-error:4044,10157'
3065         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3066         # with MSVC which enables it by default.
3067         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3068     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3069         _type=cparser
3070         _ident=$($_cc --version | head -n1)
3071         _depflags='-MMD'
3072         _cflags_speed='-O4'
3073         _cflags_size='-O2'
3074         _flags_filter=cparser_flags
3075     fi
3076
3077     eval ${pfx}_type=\$_type
3078     eval ${pfx}_ident=\$_ident
3079 }
3080
3081 set_ccvars(){
3082     eval ${1}_C=\${_cc_c-\${${1}_C}}
3083     eval ${1}_E=\${_cc_e-\${${1}_E}}
3084     eval ${1}_O=\${_cc_o-\${${1}_O}}
3085
3086     if [ -n "$_depflags" ]; then
3087         eval ${1}_DEPFLAGS=\$_depflags
3088     else
3089         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3090         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3091         eval DEP${1}FLAGS=\$_flags
3092     fi
3093 }
3094
3095 probe_cc cc "$cc"
3096 cflags_filter=$_flags_filter
3097 cflags_speed=$_cflags_speed
3098 cflags_size=$_cflags_size
3099 cflags_noopt=$_cflags_noopt
3100 add_cflags $_flags $_cflags
3101 cc_ldflags=$_ldflags
3102 set_ccvars CC
3103
3104 probe_cc hostcc "$host_cc"
3105 host_cflags_filter=$_flags_filter
3106 add_host_cflags  $_flags $_cflags
3107 set_ccvars HOSTCC
3108
3109 test -n "$cc_type" && enable $cc_type ||
3110     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3111
3112 : ${as_default:=$cc}
3113 : ${dep_cc_default:=$cc}
3114 : ${ld_default:=$cc}
3115 : ${host_ld_default:=$host_cc}
3116 set_default ar as dep_cc ld host_ld
3117
3118 probe_cc as "$as"
3119 asflags_filter=$_flags_filter
3120 add_asflags $_flags $_cflags
3121 set_ccvars AS
3122
3123 probe_cc ld "$ld"
3124 ldflags_filter=$_flags_filter
3125 add_ldflags $_flags $_ldflags
3126 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3127 LD_O=${_ld_o-$LD_O}
3128 LD_LIB=${_ld_lib-$LD_LIB}
3129 LD_PATH=${_ld_path-$LD_PATH}
3130
3131 probe_cc hostld "$host_ld"
3132 host_ldflags_filter=$_flags_filter
3133 add_host_ldflags $_flags $_ldflags
3134 HOSTLD_O=${_ld_o-$HOSTLD_O}
3135
3136 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3137     probe_cc depcc "$dep_cc"
3138     CCDEP=${_DEPCMD:-$DEPCMD}
3139     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3140     DEPCCFLAGS=$_flags
3141 fi
3142
3143 if $ar 2>&1 | grep -q Microsoft; then
3144     arflags="-nologo"
3145     ar_o='-out:$@'
3146 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3147     arflags="rq"
3148     ar_o='$@'
3149 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3150     arflags='-Xany -r -c'
3151     ar_o='$@'
3152 else
3153     arflags="rc"
3154     ar_o='$@'
3155 fi
3156
3157 add_cflags $extra_cflags
3158 add_asflags $extra_cflags
3159
3160 if test -n "$sysroot"; then
3161     case "$cc_type" in
3162         gcc|llvm_gcc|clang)
3163             add_cppflags --sysroot="$sysroot"
3164             add_ldflags --sysroot="$sysroot"
3165         ;;
3166         tms470)
3167             add_cppflags -I"$sysinclude"
3168             add_ldflags  --sysroot="$sysroot"
3169         ;;
3170     esac
3171 fi
3172
3173 if test "$cpu" = host; then
3174     enabled cross_compile &&
3175         die "--cpu=host makes no sense when cross-compiling."
3176
3177     case "$cc_type" in
3178         gcc|llvm_gcc)
3179             check_native(){
3180                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3181                 sed -n "/cc1.*$1=/{
3182                             s/.*$1=\\([^ ]*\\).*/\\1/
3183                             p
3184                             q
3185                         }" $TMPE
3186             }
3187             cpu=$(check_native -march || check_native -mcpu)
3188         ;;
3189     esac
3190
3191     test "${cpu:-host}" = host &&
3192         die "--cpu=host not supported with compiler $cc"
3193 fi
3194
3195 # Deal with common $arch aliases
3196 case "$arch" in
3197     aarch64|arm64)
3198         arch="aarch64"
3199     ;;
3200     arm*)
3201         arch="arm"
3202     ;;
3203     mips*|IP*)
3204         arch="mips"
3205     ;;
3206     parisc*|hppa*)
3207         arch="parisc"
3208     ;;
3209     "Power Macintosh"|ppc*|powerpc*)
3210         arch="ppc"
3211     ;;
3212     s390|s390x)
3213         arch="s390"
3214     ;;
3215     sh4|sh)
3216         arch="sh4"
3217     ;;
3218     sun4u|sparc*)
3219         arch="sparc"
3220     ;;
3221     tilegx|tile-gx)
3222         arch="tilegx"
3223     ;;
3224     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3225         arch="x86"
3226     ;;
3227 esac
3228
3229 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3230 enable $arch
3231
3232 # Add processor-specific flags
3233 if enabled aarch64; then
3234
3235     case $cpu in
3236         armv*)
3237             cpuflags="-march=$cpu"
3238         ;;
3239         *)
3240             cpuflags="-mcpu=$cpu"
3241         ;;
3242     esac
3243
3244 elif enabled alpha; then
3245
3246     cpuflags="-mcpu=$cpu"
3247
3248 elif enabled arm; then
3249
3250     check_arm_arch() {
3251         check_cpp_condition stddef.h \
3252             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3253             $cpuflags
3254     }
3255
3256     probe_arm_arch() {
3257         if   check_arm_arch 4;        then echo armv4;
3258         elif check_arm_arch 4T;       then echo armv4t;
3259         elif check_arm_arch 5;        then echo armv5;
3260         elif check_arm_arch 5E;       then echo armv5e;
3261         elif check_arm_arch 5T;       then echo armv5t;
3262         elif check_arm_arch 5TE;      then echo armv5te;
3263         elif check_arm_arch 5TEJ;     then echo armv5te;
3264         elif check_arm_arch 6;        then echo armv6;
3265         elif check_arm_arch 6J;       then echo armv6j;
3266         elif check_arm_arch 6K;       then echo armv6k;
3267         elif check_arm_arch 6Z;       then echo armv6z;
3268         elif check_arm_arch 6ZK;      then echo armv6zk;
3269         elif check_arm_arch 6T2;      then echo armv6t2;
3270         elif check_arm_arch 7;        then echo armv7;
3271         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3272         elif check_arm_arch 7S;       then echo armv7-a;
3273         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3274         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3275         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3276         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3277         fi
3278     }
3279
3280     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3281
3282     case $cpu in
3283         armv*)
3284             cpuflags="-march=$cpu"
3285             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3286         ;;
3287         *)
3288             cpuflags="-mcpu=$cpu"
3289             case $cpu in
3290                 cortex-a*)                               subarch=armv7a  ;;
3291                 cortex-r*)                               subarch=armv7r  ;;
3292                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3293                 arm11*)                                  subarch=armv6   ;;
3294                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3295                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3296                 *)                             subarch=$(probe_arm_arch) ;;
3297             esac
3298         ;;
3299     esac
3300
3301     case "$subarch" in
3302         armv5t*)    enable fast_clz                ;;
3303         armv[6-8]*) enable fast_clz fast_unaligned ;;
3304     esac
3305
3306 elif enabled avr32; then
3307
3308     case $cpu in
3309         ap7[02]0[0-2])
3310             subarch="avr32_ap"
3311             cpuflags="-mpart=$cpu"
3312         ;;
3313         ap)
3314             subarch="avr32_ap"
3315             cpuflags="-march=$cpu"
3316         ;;
3317         uc3[ab]*)
3318             subarch="avr32_uc"
3319             cpuflags="-mcpu=$cpu"
3320         ;;
3321         uc)
3322             subarch="avr32_uc"
3323             cpuflags="-march=$cpu"
3324         ;;
3325     esac
3326
3327 elif enabled bfin; then
3328
3329     cpuflags="-mcpu=$cpu"
3330
3331 elif enabled mips; then
3332
3333     cpuflags="-march=$cpu"
3334
3335 elif enabled ppc; then
3336
3337     disable ldbrx
3338
3339     case $(tolower $cpu) in
3340         601|ppc601|powerpc601)
3341             cpuflags="-mcpu=601"
3342             disable altivec
3343         ;;
3344         603*|ppc603*|powerpc603*)
3345             cpuflags="-mcpu=603"
3346             disable altivec
3347         ;;
3348         604*|ppc604*|powerpc604*)
3349             cpuflags="-mcpu=604"
3350             disable altivec
3351         ;;
3352         g3|75*|ppc75*|powerpc75*)
3353             cpuflags="-mcpu=750"
3354             disable altivec
3355         ;;
3356         g4|745*|ppc745*|powerpc745*)
3357             cpuflags="-mcpu=7450"
3358             disable vsx
3359         ;;
3360         74*|ppc74*|powerpc74*)
3361             cpuflags="-mcpu=7400"
3362             disable vsx
3363         ;;
3364         g5|970|ppc970|powerpc970)
3365             cpuflags="-mcpu=970"
3366             disable vsx
3367         ;;
3368         power[3-6]*)
3369             cpuflags="-mcpu=$cpu"
3370             disable vsx
3371         ;;
3372         power[7-8]*)
3373             cpuflags="-mcpu=$cpu"
3374             enable ldbrx
3375         ;;
3376         cell)
3377             cpuflags="-mcpu=cell"
3378             enable ldbrx
3379             disable vsx
3380         ;;
3381         e500mc)
3382             cpuflags="-mcpu=e500mc"
3383             disable altivec
3384         ;;
3385         e500v2)
3386             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3387             disable altivec
3388             disable dcbzl
3389         ;;
3390         e500)
3391             cpuflags="-mcpu=8540 -mhard-float"
3392             disable altivec
3393             disable dcbzl
3394         ;;
3395     esac
3396
3397 elif enabled sparc; then
3398
3399     case $cpu in
3400         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3401             cpuflags="-mcpu=$cpu"
3402         ;;
3403         ultrasparc*|niagara[234])
3404             cpuflags="-mcpu=$cpu"
3405         ;;
3406     esac
3407
3408 elif enabled x86; then
3409
3410     case $cpu in
3411         i[345]86|pentium)
3412             cpuflags="-march=$cpu"
3413             disable i686
3414             disable mmx
3415         ;;
3416         # targets that do NOT support nopl and conditional mov (cmov)
3417         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3418             cpuflags="-march=$cpu"
3419             disable i686
3420         ;;
3421         # targets that do support nopl and conditional mov (cmov)
3422         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3423             cpuflags="-march=$cpu"
3424             enable i686
3425             enable fast_cmov
3426         ;;
3427         # targets that do support conditional mov but on which it's slow
3428         pentium4|pentium4m|prescott|nocona)
3429             cpuflags="-march=$cpu"
3430             enable i686
3431             disable fast_cmov
3432         ;;
3433     esac
3434
3435 fi
3436
3437 if [ "$cpu" != generic ]; then
3438     add_cflags  $cpuflags
3439     add_asflags $cpuflags
3440 fi
3441
3442 # compiler sanity check
3443 check_exec <<EOF
3444 int main(void){ return 0; }
3445 EOF
3446 if test "$?" != 0; then
3447     echo "$cc is unable to create an executable file."
3448     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3449         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3450         echo "Only do this if you know what cross compiling means."
3451     fi
3452     die "C compiler test failed."
3453 fi
3454
3455 add_cppflags -D_ISOC99_SOURCE
3456 check_cflags -std=c99
3457 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3458 #include <stdlib.h>
3459 EOF
3460 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3461 #include <stdlib.h>
3462 EOF
3463
3464 add_host_cppflags -D_ISOC99_SOURCE
3465 check_host_cflags -std=c99
3466 check_host_cflags -Wall
3467 check_host_cflags -O3
3468
3469 check_64bit(){
3470     arch32=$1
3471     arch64=$2
3472     expr=$3
3473     check_code cc "" "int test[2*($expr) - 1]" &&
3474         subarch=$arch64 || subarch=$arch32
3475 }
3476
3477 case "$arch" in
3478     aarch64|alpha|ia64)
3479         spic=$shared
3480     ;;
3481     mips)
3482         check_64bit mips mips64 '_MIPS_SIM > 1'
3483         spic=$shared
3484     ;;
3485     parisc)
3486         check_64bit parisc parisc64 'sizeof(void *) > 4'
3487         spic=$shared
3488     ;;
3489     ppc)
3490         check_64bit ppc ppc64 'sizeof(void *) > 4'
3491         spic=$shared
3492     ;;
3493     s390)
3494         check_64bit s390 s390x 'sizeof(void *) > 4'
3495         spic=$shared
3496     ;;
3497     sparc)
3498         check_64bit sparc sparc64 'sizeof(void *) > 4'
3499         spic=$shared
3500     ;;
3501     x86)
3502         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3503         if test "$subarch" = "x86_64"; then
3504             spic=$shared
3505         fi
3506     ;;
3507 esac
3508
3509 enable $subarch
3510 enabled spic && enable_weak pic
3511
3512 # OS specific
3513 case $target_os in
3514     aix)
3515         SHFLAGS=-shared
3516         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3517         enabled shared && add_ldflags -Wl,-brtl
3518         ;;
3519     android)
3520         disable symver
3521         enable section_data_rel_ro
3522         SLIB_INSTALL_NAME='$(SLIBNAME)'
3523         SLIB_INSTALL_LINKS=
3524         # soname not set on purpose
3525         SHFLAGS=-shared
3526         ;;
3527     haiku)
3528         prefix_default="/boot/common"
3529         network_extralibs="-lnetwork"
3530         host_libs=
3531         ;;
3532     sunos)
3533         SHFLAGS='-shared -Wl,-h,$$(@F)'
3534         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3535         network_extralibs="-lsocket -lnsl"
3536         # When using suncc to build, the Solaris linker will mark
3537         # an executable with each instruction set encountered by
3538         # the Solaris assembler.  As our libraries contain their own
3539         # guards for processor-specific code, instead suppress
3540         # generation of the HWCAPS ELF section on Solaris x86 only.
3541         enabled_all suncc x86 &&
3542             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3543             add_ldflags -Wl,-M,mapfile
3544         nm_default='nm -P -g'
3545         ;;
3546     netbsd)
3547         disable symver
3548         oss_indev_extralibs="-lossaudio"
3549         oss_outdev_extralibs="-lossaudio"
3550         ;;
3551     openbsd|bitrig)
3552         disable symver
3553         SHFLAGS='-shared'
3554         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3555         SLIB_INSTALL_LINKS=
3556         oss_indev_extralibs="-lossaudio"
3557         oss_outdev_extralibs="-lossaudio"
3558         ;;
3559     dragonfly)
3560         disable symver
3561         ;;
3562     freebsd)
3563         ;;
3564     bsd/os)
3565         add_extralibs -lpoll -lgnugetopt
3566         ;;
3567     darwin)
3568         enabled ppc && add_asflags -force_cpusubtype_ALL
3569         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3570         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3571         add_ldflags -Wl,-dynamic,-search_paths_first
3572         SLIBSUF=".dylib"
3573         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3574         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3575         objformat="macho"
3576         enabled x86_64 && objformat="macho64"
3577         enabled_any pic shared ||
3578             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3579         ;;
3580     mingw32*)
3581         if test $target_os = "mingw32ce"; then
3582             disable network
3583         else
3584             target_os=mingw32
3585         fi
3586         LIBTARGET=i386
3587         if enabled x86_64; then
3588             LIBTARGET="i386:x86-64"
3589         elif enabled arm; then
3590             LIBTARGET=arm-wince
3591         fi
3592         check_ldflags -Wl,--nxcompat
3593         check_ldflags -Wl,--dynamicbase
3594         shlibdir_default="$bindir_default"
3595         SLIBPREF=""
3596         SLIBSUF=".dll"
3597         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3598         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3599         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3600         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3601         SLIB_INSTALL_LINKS=
3602         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3603         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3604         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3605         objformat="win32"
3606         dlltool="${cross_prefix}dlltool"
3607         ranlib=:
3608         enable dos_paths
3609         ;;
3610     win32|win64)
3611         disable symver
3612         if enabled shared; then
3613             # Link to the import library instead of the normal static library
3614             # for shared libs.
3615             LD_LIB='%.lib'
3616             # Cannot build both shared and static libs with MSVC or icl.
3617             disable static
3618         fi
3619         shlibdir_default="$bindir_default"
3620         SLIBPREF=""
3621         SLIBSUF=".dll"
3622         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3623         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3624         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3625         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3626         SLIB_INSTALL_LINKS=
3627         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3628         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3629         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3630         objformat="win32"
3631         ranlib=:
3632         enable dos_paths
3633         ;;
3634     cygwin*)
3635         target_os=cygwin
3636         shlibdir_default="$bindir_default"
3637         SLIBPREF="cyg"
3638         SLIBSUF=".dll"
3639         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3640         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3641         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3642         SLIB_INSTALL_LINKS=
3643         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3644         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3645         objformat="win32"
3646         enable dos_paths
3647         ;;
3648     *-dos|freedos|opendos)
3649         network_extralibs="-lsocket"
3650         objformat="coff"
3651         enable dos_paths
3652         add_cppflags -U__STRICT_ANSI__
3653         ;;
3654     linux)
3655         enable dv1394
3656         enable section_data_rel_ro
3657         ;;
3658     irix*)
3659         target_os=irix
3660         ranlib="echo ignoring ranlib"
3661         ;;
3662     os/2*)
3663         ln_s="cp -f"
3664         objformat="aout"
3665         add_cppflags -D_GNU_SOURCE
3666         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3667         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3668         LIBSUF="_s.a"
3669         SLIBPREF=""
3670         SLIBSUF=".dll"
3671         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3672         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3673         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3674             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3675             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3676             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3677             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3678         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3679             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3680         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3681         enable dos_paths
3682         ;;
3683     gnu/kfreebsd)
3684         add_cppflags -D_BSD_SOURCE
3685         ;;
3686     gnu)
3687         ;;
3688     qnx)
3689         add_cppflags -D_QNX_SOURCE
3690         network_extralibs="-lsocket"
3691         ;;
3692     symbian)
3693         SLIBSUF=".dll"
3694         enable dos_paths
3695         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3696         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3697         add_ldflags -Wl,--target1-abs,--no-undefined \
3698                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3699                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3700         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3701                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3702                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3703         ;;
3704     osf1)
3705         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3706         ;;
3707     minix)
3708         ;;
3709     plan9)
3710         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3711                      -D_REENTRANT_SOURCE        \
3712                      -D_RESEARCH_SOURCE         \
3713                      -DFD_SETSIZE=96            \
3714                      -DHAVE_SOCK_OPTS
3715         add_compat strtod.o strtod=avpriv_strtod
3716         network_extralibs='-lbsd'
3717         exeobjs=compat/plan9/main.o
3718         cp_f='cp'
3719         ;;
3720     none)
3721         ;;
3722     *)
3723         die "Unknown OS '$target_os'."
3724         ;;
3725 esac
3726
3727 # determine libc flavour
3728
3729 probe_libc(){
3730     pfx=$1
3731     pfx_no_=${pfx%_}
3732     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3733     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3734         eval ${pfx}libc_type=uclibc
3735         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3736     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3737         eval ${pfx}libc_type=glibc
3738         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3739     # MinGW headers can be installed on Cygwin, so check for newlib first.
3740     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3741         eval ${pfx}libc_type=newlib
3742         add_${pfx}cppflags -U__STRICT_ANSI__
3743     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3744     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3745         eval ${pfx}libc_type=mingw64
3746         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3747         eval test \$${pfx_no_}cc_type = "gcc" &&
3748             add_${pfx}cppflags -D__printf__=__gnu_printf__
3749     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3750          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3751         eval ${pfx}libc_type=mingw32
3752         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3753             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3754             die "ERROR: MinGW32 runtime version must be >= 3.15."
3755         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3756         eval test \$${pfx_no_}cc_type = "gcc" &&
3757             add_${pfx}cppflags -D__printf__=__gnu_printf__
3758     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3759         eval ${pfx}libc_type=msvcrt
3760         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3761             if [ "$pfx" = host_ ]; then
3762                 add_host_cppflags -Dsnprintf=_snprintf
3763             else
3764                 add_compat strtod.o strtod=avpriv_strtod
3765                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3766                                              _snprintf=avpriv_snprintf  \
3767                                              vsnprintf=avpriv_vsnprintf
3768             fi
3769         fi
3770         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3771         # 0x601 by default unless something else is set by the user.
3772         # This can easily lead to us detecting functions only present
3773         # in such new versions and producing binaries requiring windows 7.0.
3774         # Therefore explicitly set the default to XP unless the user has
3775         # set something else on the command line.
3776         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3777             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3778     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3779         eval ${pfx}libc_type=klibc
3780     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3781         eval ${pfx}libc_type=bionic
3782     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3783         eval ${pfx}libc_type=solaris
3784         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3785     else
3786         eval ${pfx}libc_type=default
3787         add_${pfx}cppflags -D_DEFAULT_SOURCE
3788     fi
3789 }
3790
3791 probe_libc
3792 test -n "$libc_type" && enable libc_$libc_type
3793 probe_libc host_
3794 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3795
3796 case $libc_type in
3797     bionic)
3798         add_compat strtod.o strtod=avpriv_strtod
3799         ;;
3800 esac
3801
3802 # hacks for compiler/libc/os combinations
3803
3804 if enabled_all tms470 libc_glibc; then
3805     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3806     add_cppflags -D__USER_LABEL_PREFIX__=
3807     add_cppflags -D__builtin_memset=memset
3808     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3809     add_cflags   -pds=48    # incompatible redefinition of macro
3810 fi
3811
3812 if enabled_all ccc libc_glibc; then
3813     add_ldflags -Wl,-z,now  # calls to libots crash without this
3814 fi
3815
3816 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3817     add_cppflags '-I\$(SRC_PATH)/compat/float'
3818
3819 esc(){
3820     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3821 }
3822
3823 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3824
3825 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3826
3827 set_default $PATHS_LIST
3828 set_default nm
3829
3830 # we need to build at least one lib type
3831 if ! enabled_any static shared; then
3832     cat <<EOF
3833 At least one library type must be built.
3834 Specify --enable-static to build the static libraries or --enable-shared to
3835 build the shared libraries as well. To only build the shared libraries specify
3836 --disable-static in addition to --enable-shared.
3837 EOF
3838     exit 1;
3839 fi
3840
3841 die_license_disabled() {
3842     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3843 }
3844
3845 die_license_disabled gpl libcdio
3846 die_license_disabled gpl libx264
3847 die_license_disabled gpl libx265
3848 die_license_disabled gpl libxavs
3849 die_license_disabled gpl libxvid
3850 die_license_disabled gpl x11grab
3851
3852 die_license_disabled nonfree libfaac
3853 die_license_disabled nonfree libfdk_aac
3854 die_license_disabled nonfree nvenc
3855 die_license_disabled nonfree openssl
3856
3857 die_license_disabled version3 libopencore_amrnb
3858 die_license_disabled version3 libopencore_amrwb
3859 die_license_disabled version3 libvo_aacenc
3860 die_license_disabled version3 libvo_amrwbenc
3861
3862 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3863
3864 disabled optimizations || check_cflags -fomit-frame-pointer
3865
3866 enable_weak_pic() {
3867     disabled pic && return
3868     enable pic
3869     add_cppflags -DPIC
3870     case "$target_os" in
3871     mingw*|cygwin*)
3872         ;;
3873     *)
3874         add_cflags -fPIC
3875         ;;
3876     esac
3877     add_asflags  -fPIC
3878 }
3879
3880 enabled pic && enable_weak_pic
3881
3882 check_cc <<EOF || die "Symbol mangling check failed."
3883 int ff_extern;
3884 EOF
3885 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3886 extern_prefix=${sym%%ff_extern*}
3887
3888 check_cc <<EOF && enable_weak inline_asm
3889 void foo(void) { __asm__ volatile ("" ::); }
3890 EOF
3891
3892 _restrict=
3893 for restrict_keyword in restrict __restrict__ __restrict; do
3894     check_cc <<EOF && _restrict=$restrict_keyword && break
3895 void foo(char * $restrict_keyword p);
3896 EOF
3897 done
3898
3899 check_cc <<EOF && enable pragma_deprecated
3900 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3901 EOF
3902
3903 check_cc <<EOF && enable attribute_packed
3904 struct { int x; } __attribute__((packed)) x;
3905 EOF
3906
3907 check_cc <<EOF && enable attribute_may_alias
3908 union { int x; } __attribute__((may_alias)) x;
3909 EOF
3910
3911 check_cc <<EOF || die "endian test failed"
3912 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3913 EOF
3914 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3915
3916 check_gas() {
3917     log "check_gas using '$as' as AS"
3918     # :vararg is used on aarch64, arm and ppc altivec
3919     check_as <<EOF || return 1
3920 .macro m n, y:vararg=0
3921 \n: .int \y
3922 .endm
3923 m x
3924 EOF
3925     # .altmacro is only used in arm asm
3926     ! enabled arm || check_as <<EOF || return 1
3927 .altmacro
3928 EOF
3929     enable gnu_as
3930     return 0
3931 }
3932
3933 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3934     nogas=:
3935     enabled_any arm aarch64 && nogas=die
3936     enabled_all ppc altivec && nogas=warn
3937     as_noop=-v
3938
3939     case $as_type in
3940         arm*) gaspp_as_type=armasm; as_noop=-h ;;
3941         gcc)  gaspp_as_type=gas ;;
3942         *)    gaspp_as_type=$as_type ;;
3943     esac
3944
3945     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3946
3947     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3948         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3949
3950     if ! check_gas ; then
3951         as=${gas:=$as}
3952         check_gas || \
3953             $nogas "GNU assembler not found, install/update gas-preprocessor"
3954     fi
3955
3956     check_as <<EOF && enable as_func
3957 .func test
3958 .endfunc
3959 EOF
3960 fi
3961
3962 check_inline_asm inline_asm_labels '"1:\n"'
3963
3964 if enabled aarch64; then
3965     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
3966     # internal assembler in clang 3.3 does not support this instruction
3967     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
3968     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
3969
3970     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3971
3972 elif enabled alpha; then
3973
3974     check_cflags -mieee
3975
3976 elif enabled arm; then
3977
3978     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3979     enabled thumb && check_cflags -mthumb || check_cflags -marm
3980
3981     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3982         enable vfp_args
3983     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3984         case "${cross_prefix:-$cc}" in
3985             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3986             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3987 __asm__ (".eabi_attribute 28, 1");
3988 int main(void) { return 0; }
3989 EOF
3990         esac
3991         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3992     fi
3993
3994     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3995     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3996     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3997     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3998     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3999     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4000
4001     [ $target_os = linux ] || [ $target_os = android ] ||
4002         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4003             $ARCH_EXT_LIST_ARM
4004
4005     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4006
4007     check_as <<EOF && enable as_dn_directive
4008 ra .dn d0.i16
4009 .unreq ra
4010 EOF
4011
4012     # llvm's integrated assembler supports .object_arch from llvm 3.5
4013     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4014 .object_arch armv4
4015 EOF
4016
4017     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4018
4019 elif enabled mips; then
4020
4021     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4022
4023 elif enabled parisc; then
4024
4025     if enabled gcc; then
4026         case $($cc -dumpversion) in
4027             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4028         esac
4029     fi
4030
4031 elif enabled ppc; then
4032
4033     enable local_aligned_8 local_aligned_16
4034
4035     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4036     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4037     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4038     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4039
4040     # AltiVec flags: The FSF version of GCC differs from the Apple version
4041     if enabled altivec; then
4042         check_cflags -maltivec -mabi=altivec &&
4043         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4044         check_cflags -faltivec
4045
4046         # check if our compiler supports Motorola AltiVec C API
4047         check_cc <<EOF || disable altivec
4048 $inc_altivec_h
4049 int main(void) {
4050     vector signed int v1 = (vector signed int) { 0 };
4051     vector signed int v2 = (vector signed int) { 1 };
4052     v1 = vec_add(v1, v2);
4053     return 0;
4054 }
4055 EOF
4056
4057         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4058     fi
4059
4060     if enabled vsx; then
4061         check_cflags -mvsx &&
4062         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4063     fi
4064
4065     if enabled power8; then
4066         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4067     fi
4068
4069 elif enabled x86; then
4070
4071     check_builtin rdtsc    intrin.h   "__rdtsc()"
4072     check_builtin mm_empty mmintrin.h "_mm_empty()"
4073
4074     enable local_aligned_8 local_aligned_16
4075
4076     # check whether EBP is available on x86
4077     # As 'i' is stored on the stack, this program will crash
4078     # if the base pointer is used to access it because the
4079     # base pointer is cleared in the inline assembly code.
4080     check_exec_crash <<EOF && enable ebp_available
4081 volatile int i=0;
4082 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4083 return i;
4084 EOF
4085
4086     # check whether EBX is available on x86
4087     check_inline_asm ebx_available '""::"b"(0)' &&
4088         check_inline_asm ebx_available '"":::"%ebx"'
4089
4090     # check whether xmm clobbers are supported
4091     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4092
4093     # check whether binutils is new enough to compile SSSE3/MMXEXT
4094     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4095     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4096
4097     if ! disabled_any asm mmx yasm; then
4098         if check_cmd $yasmexe --version; then
4099             enabled x86_64 && yasm_extra="-m amd64"
4100             yasm_debug="-g dwarf2"
4101         elif check_cmd nasm -v; then
4102             yasmexe=nasm
4103             yasm_debug="-g -F dwarf"
4104             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4105         fi
4106
4107         YASMFLAGS="-f $objformat $yasm_extra"
4108         enabled pic               && append YASMFLAGS "-DPIC"
4109         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4110         case "$objformat" in
4111             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4112         esac
4113
4114         check_yasm "movbe ecx, [5]" && enable yasm ||
4115             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4116         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4117         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4118         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4119         check_yasm "CPU amdnop" || disable cpunop
4120     fi
4121
4122     case "$cpu" in
4123         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4124             disable fast_clz
4125         ;;
4126     esac
4127
4128 fi
4129
4130 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4131
4132 check_ldflags -Wl,--as-needed
4133
4134 if check_func dlopen; then
4135     ldl=
4136 elif check_func dlopen -ldl; then
4137     ldl=-ldl
4138 fi
4139
4140 if ! disabled network; then
4141     check_func getaddrinfo $network_extralibs
4142     check_func getservbyport $network_extralibs
4143     check_func inet_aton $network_extralibs
4144
4145     check_type netdb.h "struct addrinfo"
4146     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4147     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4148     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4149     check_type poll.h "struct pollfd"
4150     check_type netinet/sctp.h "struct sctp_event_subscribe"
4151     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4152     check_type netinet/in.h "struct sockaddr_in6"
4153     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4154     check_type "sys/types.h sys/socket.h" socklen_t
4155
4156     # Prefer arpa/inet.h over winsock2
4157     if check_header arpa/inet.h ; then
4158         check_func closesocket
4159     elif check_header winsock2.h ; then
4160         check_func_headers winsock2.h closesocket -lws2 &&
4161             network_extralibs="-lws2" ||
4162         { check_func_headers winsock2.h closesocket -lws2_32 &&
4163             network_extralibs="-lws2_32"; } || disable winsock2_h network
4164         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4165
4166         check_type ws2tcpip.h socklen_t
4167         check_type ws2tcpip.h "struct addrinfo"
4168         check_type ws2tcpip.h "struct group_source_req"
4169         check_type ws2tcpip.h "struct ip_mreq_source"
4170         check_type ws2tcpip.h "struct ipv6_mreq"
4171         check_type winsock2.h "struct pollfd"
4172         check_struct winsock2.h "struct sockaddr" sa_len
4173         check_type ws2tcpip.h "struct sockaddr_in6"
4174         check_type ws2tcpip.h "struct sockaddr_storage"
4175     else
4176         disable network
4177     fi
4178 fi
4179
4180 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4181 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4182 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4183 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4184
4185 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4186 check_func  ${malloc_prefix}memalign            && enable memalign
4187 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4188
4189 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4190     check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4191
4192 check_func  fcntl
4193 check_func  fork
4194 check_func  gethrtime
4195 check_func  getopt
4196 check_func  getrusage
4197 check_func  gettimeofday
4198 check_func  gmtime_r
4199 check_func  isatty
4200 check_func  localtime_r
4201 check_func  mach_absolute_time
4202 check_func  mkstemp
4203 check_func  mmap
4204 check_func  mprotect
4205 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4206 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4207 check_func  sched_getaffinity
4208 check_func  setrlimit
4209 check_func  strerror_r
4210 check_func  sysconf
4211 check_func  sysctl
4212 check_func  usleep
4213
4214 check_func_headers io.h setmode
4215 check_func_headers stdlib.h getenv
4216
4217 check_func_headers windows.h CoTaskMemFree -lole32
4218 check_func_headers windows.h GetProcessAffinityMask
4219 check_func_headers windows.h GetProcessTimes
4220 check_func_headers windows.h GetSystemTimeAsFileTime
4221 check_func_headers windows.h LoadLibrary
4222 check_func_headers windows.h MapViewOfFile
4223 check_func_headers windows.h SetConsoleTextAttribute
4224 check_func_headers windows.h Sleep
4225 check_func_headers windows.h VirtualAlloc
4226 check_struct windows.h "CONDITION_VARIABLE" Ptr
4227
4228 check_header direct.h
4229 check_header dlfcn.h
4230 check_header d3d11.h
4231 check_header dxva.h
4232 check_header dxva2api.h
4233 check_header io.h
4234 check_header mach/mach_time.h
4235 check_header malloc.h
4236 check_header poll.h
4237 check_header sys/mman.h
4238 check_header sys/param.h
4239 check_header sys/resource.h
4240 check_header sys/select.h
4241 check_header sys/time.h
4242 check_header sys/un.h
4243 check_header unistd.h
4244 check_header valgrind/valgrind.h
4245 check_header vdpau/vdpau.h
4246 check_header vdpau/vdpau_x11.h
4247 check_header VideoDecodeAcceleration/VDADecoder.h
4248 check_header windows.h
4249 check_header X11/extensions/XvMClib.h
4250
4251 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4252 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4253 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4254
4255 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4256
4257 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC"
4258 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4259 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0600
4260
4261 if ! disabled w32threads && ! enabled pthreads; then
4262     check_func_headers "windows.h process.h" _beginthreadex &&
4263         enable w32threads || disable w32threads
4264 fi
4265
4266 # check for some common methods of building with pthread support
4267 # do this before the optional library checks as some of them require pthreads
4268 if ! disabled pthreads && ! enabled w32threads; then
4269     enable pthreads
4270     if check_func pthread_join -pthread; then
4271         add_cflags -pthread
4272         add_extralibs -pthread
4273     elif check_func pthread_join -pthreads; then
4274         add_cflags -pthreads
4275         add_extralibs -pthreads
4276     elif check_func pthread_join -lpthreadGC2; then
4277         add_extralibs -lpthreadGC2
4278     elif check_lib pthread.h pthread_join -lpthread; then
4279         :
4280     elif ! check_func pthread_join; then
4281         disable pthreads
4282     fi
4283 fi
4284
4285 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4286 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4287
4288 check_lib math.h sin -lm && LIBM="-lm"
4289 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4290
4291 atan2f_args=2
4292 ldexpf_args=2
4293 powf_args=2
4294
4295 for func in $MATH_FUNCS; do
4296     eval check_mathfunc $func \${${func}_args:-1}
4297 done
4298
4299 # these are off by default, so fail if requested and not available
4300 enabled avisynth          && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4301                                check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl   ||
4302                                die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4303 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4304 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4305 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4306 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4307 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4308 enabled libfdk_aac        && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4309 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4310 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4311 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4312                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4313                                done || die "ERROR: libgsm not found"; }
4314 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4315 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4316 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4317 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4318 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4319 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4320 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4321 enabled libopenjpeg       && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4322                                { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4323 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4324 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4325 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4326 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4327 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
4328 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4329 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4330 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4331 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4332 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4333 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4334 enabled libvpx            && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4335     enabled libvpx_vp8_decoder && {
4336         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4337             disable libvpx_vp8_decoder;
4338     }
4339     enabled libvpx_vp8_encoder && {
4340         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4341             disable libvpx_vp8_encoder;
4342     }
4343     enabled libvpx_vp9_decoder && {
4344         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4345             disable libvpx_vp9_decoder;
4346     }
4347     enabled libvpx_vp9_encoder && {
4348         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4349             disable libvpx_vp9_encoder;
4350     }
4351     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4352         die "libvpx enabled but no supported decoders found"
4353     fi
4354 }
4355 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4356 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4357 enabled libx264           && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4358                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4359                                die "ERROR: libx264 version must be >= 0.118."; } &&
4360                              { check_cpp_condition x264.h "X264_MPEG2" &&
4361                                enable libx262; }
4362 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
4363                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4364                                die "ERROR: libx265 version must be >= 57."; }
4365 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4366 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4367 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4368                                 { ! enabled cross_compile && {
4369                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4370                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4371                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
4372                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4373                                die "ERROR: mmal not found"; }
4374 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4375                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4376                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4377                                die "ERROR: openssl not found"; }
4378
4379 if enabled gnutls; then
4380     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4381     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4382 fi
4383
4384 # libdc1394 check
4385 if enabled libdc1394; then
4386     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4387         enable libdc1394_2; } ||
4388     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4389         enable libdc1394_1; } ||
4390     die "ERROR: No version of libdc1394 found "
4391 fi
4392
4393 if enabled nvenc; then
4394     check_header cuda.h || die "ERROR: cuda.h not found.";
4395     check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4396     check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4397         die "ERROR: NVENC API version 4 or older is not supported";
4398 fi
4399
4400 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4401     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4402     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4403     enable sdl
4404 fi
4405
4406 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4407 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4408
4409 check_header linux/fb.h
4410 check_header linux/videodev2.h
4411 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4412
4413 check_header sys/videoio.h
4414
4415 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4416 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4417 # w32api 3.12 had it defined wrong
4418 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4419
4420 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4421 { check_header dev/bktr/ioctl_meteor.h &&
4422   check_header dev/bktr/ioctl_bt848.h; } ||
4423 { check_header machine/ioctl_meteor.h &&
4424   check_header machine/ioctl_bt848.h; } ||
4425 { check_header dev/video/meteor/ioctl_meteor.h &&
4426   check_header dev/video/bktr/ioctl_bt848.h; } ||
4427 check_header dev/ic/bt8xx.h
4428
4429 check_header sndio.h
4430 check_header sys/soundcard.h
4431 check_header soundcard.h
4432
4433 enabled_any alsa_indev alsa_outdev &&
4434     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4435
4436 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4437     check_func jack_port_get_latency_range -ljack
4438
4439 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4440
4441 if enabled libcdio; then
4442     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4443     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4444     die "ERROR: No usable libcdio/cdparanoia found"
4445 fi
4446
4447 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4448
4449 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4450     check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4451         enabled libxcb && die "ERROR: libxcb not found";
4452     } && disable x11grab && enable libxcb
4453
4454     disabled libxcb_shm ||
4455         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4456             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4457         } && check_header sys/shm.h && enable libxcb_shm
4458
4459     disabled libxcb_xfixes ||
4460         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4461             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4462         } && enable libxcb_xfixes
4463
4464     add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4465     add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4466 fi
4467
4468 if enabled x11grab; then
4469     enabled xlib || die "ERROR: Xlib not found"
4470     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4471     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4472 fi
4473
4474 enabled vaapi && enabled xlib &&
4475     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4476     enable vaapi_x11
4477
4478 enabled vdpau &&
4479     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4480     disable vdpau
4481
4482 enabled vdpau && enabled xlib &&
4483     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4484     prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4485     enable vdpau_x11
4486
4487 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4488
4489 # add some useful compiler flags if supported
4490 check_cflags -Wdeclaration-after-statement
4491 check_cflags -Wall
4492 check_cflags -Wdisabled-optimization
4493 check_cflags -Wpointer-arith
4494 check_cflags -Wredundant-decls
4495 check_cflags -Wcast-qual
4496 check_cflags -Wwrite-strings
4497 check_cflags -Wtype-limits
4498 check_cflags -Wundef
4499 check_cflags -Wmissing-prototypes
4500 check_cflags -Wstrict-prototypes
4501 enabled extra_warnings && check_cflags -Winline
4502
4503 check_disable_warning(){
4504     warning_flag=-W${1#-Wno-}
4505     test_cflags $warning_flag && add_cflags $1
4506 }
4507
4508 check_disable_warning -Wno-parentheses
4509 check_disable_warning -Wno-switch
4510 check_disable_warning -Wno-format-zero-length
4511 check_disable_warning -Wno-pointer-sign
4512
4513 # add some linker flags
4514 check_ldflags -Wl,--warn-common
4515 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4516 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4517 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4518
4519 # add some strip flags
4520 # -wN '..@*' is more selective than -x, but not available everywhere.
4521 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4522
4523 enabled neon_clobber_test &&
4524     check_ldflags -Wl,--wrap,avcodec_open2              \
4525                   -Wl,--wrap,avcodec_decode_audio4      \
4526                   -Wl,--wrap,avcodec_decode_video2      \
4527                   -Wl,--wrap,avcodec_decode_subtitle2   \
4528                   -Wl,--wrap,avcodec_encode_audio2      \
4529                   -Wl,--wrap,avcodec_encode_video2      \
4530                   -Wl,--wrap,avcodec_encode_subtitle    \
4531                   -Wl,--wrap,avresample_convert ||
4532     disable neon_clobber_test
4533
4534 enabled xmm_clobber_test &&
4535     check_ldflags -Wl,--wrap,avcodec_open2              \
4536                   -Wl,--wrap,avcodec_decode_audio4      \
4537                   -Wl,--wrap,avcodec_decode_video2      \
4538                   -Wl,--wrap,avcodec_decode_subtitle2   \
4539                   -Wl,--wrap,avcodec_encode_audio2      \
4540                   -Wl,--wrap,avcodec_encode_video2      \
4541                   -Wl,--wrap,avcodec_encode_subtitle    \
4542                   -Wl,--wrap,avresample_convert         \
4543                   -Wl,--wrap,sws_scale ||
4544     disable xmm_clobber_test
4545
4546 echo "X{};" > $TMPV
4547 if test_ldflags -Wl,--version-script,$TMPV; then
4548     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4549     check_cc <<EOF && enable symver_asm_label
4550 void ff_foo(void) __asm__ ("av_foo@VERSION");
4551 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4552 EOF
4553     check_cc <<EOF && enable symver_gnu_asm
4554 __asm__(".symver ff_foo,av_foo@VERSION");
4555 void ff_foo(void) {}
4556 EOF
4557 fi
4558
4559 if [ -z "$optflags" ]; then
4560     if enabled small; then
4561         optflags=$cflags_size
4562     elif enabled optimizations; then
4563         optflags=$cflags_speed
4564     else
4565         optflags=$cflags_noopt
4566     fi
4567 fi
4568
4569 check_optflags(){
4570     check_cflags "$@"
4571     enabled lto && check_ldflags "$@"
4572 }
4573
4574
4575 if enabled lto; then
4576     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4577     check_cflags  -flto
4578     check_ldflags -flto $cpuflags
4579 fi
4580
4581 check_optflags $optflags
4582 check_optflags -fno-math-errno
4583 check_optflags -fno-signed-zeros
4584
4585 if enabled icc; then
4586     # Just warnings, no remarks
4587     check_cflags -w1
4588     # -wd: Disable following warnings
4589     # 144, 167, 556: -Wno-pointer-sign
4590     # 1292: attribute "foo" ignored
4591     # 1419: external declaration in primary source file
4592     # 10006: ignoring unknown option -fno-signed-zeros
4593     # 10148: ignoring unknown option -Wno-parentheses
4594     # 10156: ignoring option '-W'; no argument required
4595     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4596     # 11030: Warning unknown option --as-needed
4597     # 10156: ignoring option '-export'; no argument required
4598     check_ldflags -wd10156,11030
4599     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4600     enable ebp_available
4601     if enabled x86_32; then
4602         icc_version=$($cc -dumpversion)
4603         test ${icc_version%%.*} -ge 11 &&
4604             check_cflags -falign-stack=maintain-16-byte ||
4605             disable aligned_stack
4606     fi
4607 elif enabled ccc; then
4608     # disable some annoying warnings
4609     add_cflags -msg_disable bitnotint
4610     add_cflags -msg_disable mixfuncvoid
4611     add_cflags -msg_disable nonstandcast
4612     add_cflags -msg_disable unsupieee
4613 elif enabled gcc; then
4614     check_optflags -fno-tree-vectorize
4615     check_cflags -Werror=implicit-function-declaration
4616     check_cflags -Werror=missing-prototypes
4617     check_cflags -Werror=return-type
4618     check_cflags -Werror=declaration-after-statement
4619     check_cflags -Werror=vla
4620     check_cflags -Werror=format-security
4621     check_cflags -fdiagnostics-color=auto
4622     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4623 elif enabled llvm_gcc; then
4624     check_cflags -mllvm -stack-alignment=16
4625 elif enabled clang; then
4626     check_cflags -mllvm -stack-alignment=16
4627     check_cflags -Qunused-arguments
4628     check_cflags -Werror=implicit-function-declaration
4629     check_cflags -Werror=missing-prototypes
4630     check_cflags -Werror=return-type
4631 elif enabled cparser; then
4632     add_cflags -Wno-missing-variable-declarations
4633     add_cflags -Wno-empty-statement
4634 elif enabled armcc; then
4635     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4636     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4637     # 2523: use of inline assembly is deprecated
4638     add_cflags -W${armcc_opt},--diag_suppress=2523
4639     add_cflags -W${armcc_opt},--diag_suppress=1207
4640     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4641     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4642     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4643     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4644 elif enabled tms470; then
4645     add_cflags -pds=824 -pds=837
4646     disable inline_asm
4647 elif enabled pathscale; then
4648     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4649 elif enabled_any msvc icl; then
4650     enabled x86_32 && disable aligned_stack
4651     enabled_all x86_32 debug && add_cflags -Oy-
4652     enabled debug && add_ldflags -debug
4653     enable pragma_deprecated
4654     if enabled icl; then
4655         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4656         # (correctly) on icl 13.x.
4657         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4658             add_cflags -Qansi-alias
4659         # icl will pass the inline asm tests but inline asm is currently
4660         # not supported (build will fail)
4661         disable inline_asm
4662     fi
4663     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4664     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4665 fi
4666
4667 case $as_type in
4668     clang)
4669         add_asflags -Qunused-arguments
4670     ;;
4671 esac
4672
4673 case $ld_type in
4674     clang)
4675         check_ldflags -Qunused-arguments
4676     ;;
4677 esac
4678
4679 case $target_os in
4680     osf1)
4681         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4682     ;;
4683     plan9)
4684         add_cppflags -Dmain=plan9_main
4685     ;;
4686 esac
4687
4688 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4689
4690 check_deps $CONFIG_LIST       \
4691            $CONFIG_EXTRA      \
4692            $HAVE_LIST         \
4693            $ALL_COMPONENTS    \
4694
4695 enabled_all dxva2 CoTaskMemFree &&
4696     prepend avconv_libs $($ldflags_filter "-lole32") &&
4697     enable dxva2_lib
4698
4699 ! enabled_any memalign posix_memalign aligned_malloc &&
4700     enabled simd_align_16 && enable memalign_hack
4701
4702 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4703
4704 for thread in $THREADS_LIST; do
4705     if enabled $thread; then
4706         test -n "$thread_type" &&
4707             die "ERROR: Only one thread type must be selected." ||
4708             thread_type="$thread"
4709     fi
4710 done
4711
4712 enabled zlib && add_cppflags -DZLIB_CONST
4713
4714 # conditional library dependencies, in linking order
4715 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
4716 enabled resample_filter && prepend avfilter_deps "avresample"
4717 enabled scale_filter    && prepend avfilter_deps "swscale"
4718
4719 enabled opus_decoder    && prepend avcodec_deps "avresample"
4720
4721 expand_deps(){
4722     lib_deps=${1}_deps
4723     eval "deps=\$$lib_deps"
4724     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4725     unique $lib_deps
4726 }
4727
4728 map 'expand_deps $v' $LIBRARY_LIST
4729
4730 echo "install prefix            $prefix"
4731 echo "source path               $source_path"
4732 echo "C compiler                $cc"
4733 echo "C library                 $libc_type"
4734 if test "$host_cc" != "$cc"; then
4735     echo "host C compiler           $host_cc"
4736     echo "host C library            $host_libc_type"
4737 fi
4738 echo "ARCH                      $arch ($cpu)"
4739 if test "$build_suffix" != ""; then
4740     echo "build suffix              $build_suffix"
4741 fi
4742 if test "$extra_version" != ""; then
4743     echo "version string suffix     $extra_version"
4744 fi
4745 echo "big-endian                ${bigendian-no}"
4746 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4747 if enabled x86; then
4748     echo "${yasmexe}                      ${yasm-no}"
4749     echo "MMX enabled               ${mmx-no}"
4750     echo "MMXEXT enabled            ${mmxext-no}"
4751     echo "3DNow! enabled            ${amd3dnow-no}"
4752     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4753     echo "SSE enabled               ${sse-no}"
4754     echo "SSSE3 enabled             ${ssse3-no}"
4755     echo "AVX enabled               ${avx-no}"
4756     echo "XOP enabled               ${xop-no}"
4757     echo "FMA3 enabled              ${fma3-no}"
4758     echo "FMA4 enabled              ${fma4-no}"
4759     echo "i686 features enabled     ${i686-no}"
4760     echo "CMOV is fast              ${fast_cmov-no}"
4761     echo "EBX available             ${ebx_available-no}"
4762     echo "EBP available             ${ebp_available-no}"
4763 fi
4764 if enabled aarch64; then
4765     echo "NEON enabled              ${neon-no}"
4766     echo "VFP enabled               ${vfp-no}"
4767 fi
4768 if enabled arm; then
4769     echo "ARMv5TE enabled           ${armv5te-no}"
4770     echo "ARMv6 enabled             ${armv6-no}"
4771     echo "ARMv6T2 enabled           ${armv6t2-no}"
4772     echo "VFP enabled               ${vfp-no}"
4773     echo "NEON enabled              ${neon-no}"
4774 fi
4775 if enabled ppc; then
4776     echo "AltiVec enabled           ${altivec-no}"
4777     echo "VSX enabled               ${vsx-no}"
4778     echo "POWER8 enabled            ${power8-no}"
4779     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4780     echo "dcbzl available           ${dcbzl-no}"
4781 fi
4782 echo "debug symbols             ${debug-no}"
4783 echo "optimize for size         ${small-no}"
4784 echo "optimizations             ${optimizations-no}"
4785 echo "static                    ${static-no}"
4786 echo "shared                    ${shared-no}"
4787 echo "new filter support        ${avfilter-no}"
4788 echo "network support           ${network-no}"
4789 echo "threading support         ${thread_type-no}"
4790 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4791 echo "SDL support               ${sdl-no}"
4792 test -n "$random_seed" &&
4793     echo "random seed               ${random_see