b4cda14c01d1f6918aa3dadc3d490a81dc5081a2
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [avbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --prefix=PREFIX          install in PREFIX [$prefix_default]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --enable-rpath           use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93   --enable-gpl             allow use of GPL code, the resulting libs
94                            and binaries will be under GPL [no]
95   --enable-version3        upgrade (L)GPL to version 3 [no]
96   --enable-nonfree         allow use of nonfree code, the resulting libs
97                            and binaries will be unredistributable [no]
98
99 Configuration options:
100   --disable-static         do not build static libraries [no]
101   --enable-shared          build shared libraries [no]
102   --enable-small           optimize for size instead of speed
103   --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104   --enable-gray            enable full grayscale support (slower color)
105   --disable-swscale-alpha  disable alpha channel support in swscale
106   --disable-all            disable building components, libraries and programs
107
108 Program options:
109   --disable-programs       do not build command line programs
110   --disable-avconv         disable avconv build
111   --disable-avplay         disable avplay build
112   --disable-avprobe        disable avprobe build
113   --disable-avserver       deprecated, does nothing
114
115 Component options:
116   --disable-doc            do not build documentation
117   --disable-pod2man        do not build manual pages
118   --disable-texi2html      do not build HTML documentation
119   --disable-avdevice       disable libavdevice build
120   --disable-avcodec        disable libavcodec build
121   --disable-avformat       disable libavformat build
122   --disable-avutil         disable libavutil build
123   --disable-swscale        disable libswscale build
124   --disable-avfilter       disable video filter support [no]
125   --disable-avresample     disable libavresample build [no]
126   --disable-pthreads       disable pthreads [auto]
127   --disable-w32threads     disable Win32 threads [auto]
128   --disable-network        disable network support [no]
129   --disable-dct            disable DCT code
130   --disable-error-resilience disable error resilience code
131   --disable-lsp            disable LSP code
132   --disable-lzo            disable LZO decoder code
133   --disable-mdct           disable MDCT code
134   --disable-rdft           disable RDFT code
135   --disable-fft            disable FFT code
136   --disable-faan           disable floating point AAN (I)DCT code
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176
177   Using any of the following switches will allow Libav to link to the
178   corresponding external library. All the components depending on that library
179   will become enabled, if all their other dependencies are met and they are not
180   explicitly disabled. E.g. --enable-libwavpack will enable linking to
181   libwavpack and allow the libwavpack encoder to be built, unless it is
182   specifically disabled with --disable-encoder=libwavpack.
183
184   Note that only the system libraries are auto-detected. All the other external
185   libraries must be explicitly enabled.
186
187   Also note that the following help text describes the purpose of the libraries
188   themselves, not all their features will necessarily be usable by Libav.
189
190   --enable-avisynth          video frameserver
191   --enable-avxsynth          Linux version of AviSynth
192   --enable-bzlib             bzip2 compression [autodetect]
193   --enable-frei0r            video filtering plugins
194   --enable-gnutls            crypto
195   --enable-libbs2b           Bauer stereophonic-to-binaural DSP
196   --enable-libcdio           audio CD input
197   --enable-libdc1394         IEEE 1394/Firewire camera input
198   --enable-libdcadec         DCA audio decoding
199   --enable-libfaac           AAC audio encoding
200   --enable-libfdk-aac        AAC audio encoding/decoding
201   --enable-libfontconfig     font configuration and management
202   --enable-libfreetype       font rendering
203   --enable-libgsm            GSM audio encoding/decoding
204   --enable-libhdcd           HDCD decoding filter
205   --enable-libilbc           ILBC audio encoding/decoding
206   --enable-libjack           JACK audio sound server
207   --enable-libkvazaar        HEVC video encoding
208   --enable-libmp3lame        MP3 audio encoding
209   --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210   --enable-libopencore-amrwb AMR-WB audio decoding
211   --enable-libopencv         computer vision
212   --enable-libopenh264       H.264 video encoding/decoding
213   --enable-libopenjpeg       JPEG 2000 image encoding/decoding
214   --enable-libopus           Opus audio encoding/decoding
215   --enable-libpulse          Pulseaudio sound server
216   --enable-librtmp           RTMP streaming
217   --enable-libschroedinger   Dirac video encoding/decoding
218   --enable-libsnappy         snappy compression
219   --enable-libspeex          Speex audio encoding/decoding
220   --enable-libtheora         Theora video encoding/decoding
221   --enable-libtwolame        MP2 audio encoding
222   --enable-libvo-aacenc      AAC audio encoding
223   --enable-libvo-amrwbenc    AMR-WB audio encoding
224   --enable-libvorbis         Vorbis audio encoding/decoding
225   --enable-libvpx            VP* video encoding/decoding
226   --enable-libwavpack        Wavpack audio encoding/decoding
227   --enable-libwebp           WebP image encoding/decoding
228   --enable-libx264           H.264 video encoding
229   --enable-libx265           HEVC video encoding
230   --enable-libxavs           Chinese AVS video encoding
231   --enable-libxcb            X window system protocol communication
232   --enable-libxcb-shm        X11 shm communication [auto]
233   --enable-libxcb-xfixes     X11 mouse rendering [auto]
234   --enable-libxvid           MPEG-4 ASP video encoding
235   --enable-openssl           crypto
236   --enable-zlib              compression [autodetect]
237
238   The following libraries provide various hardware acceleration features:
239   --enable-cuda    Nvidia CUDA (dynamically linked)
240   --enable-cuvid   Nvidia CUVID video decode acceleration
241   --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242   --enable-dxva2   Microsoft DirectX 9 video acceleration [auto]
243   --enable-libmfx  Intel MediaSDK (AKA Quick Sync Video)
244   --enable-libnpp  Nvidia CUDA processing
245   --enable-mmal    Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246   --enable-nvenc   Nvidia video encoding
247   --enable-omx     OpenMAX IL
248   --enable-omx-rpi OpenMAX IL for Raspberry Pi
249   --enable-vaapi   Video Acceleration API (mainly Unix/Intel)
250   --enable-vda     Apple Video Decode Acceleration [auto]
251   --enable-vdpau   Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254   --arch=ARCH              select architecture [$arch]
255   --cpu=CPU                select the minimum required CPU (affects
256                            instruction selection, may crash on older CPUs)
257   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
258   --enable-cross-compile   assume a cross-compiler is used
259   --sysroot=PATH           root of cross-build tree
260   --sysinclude=PATH        location of cross-build system headers
261   --target-os=OS           compiler targets OS [$target_os]
262   --target-exec=CMD        command to run executables on target
263   --target-path=DIR        path to view of build directory on target
264   --target-samples=DIR     path to samples directory on target
265   --toolchain=NAME         set tool defaults according to NAME
266   --nm=NM                  use nm tool
267   --ar=AR                  use archive tool AR [$ar_default]
268   --as=AS                  use assembler AS [$as_default]
269   --cc=CC                  use C compiler CC [$cc_default]
270   --objcc=OCC              use ObjC compiler OCC [$cc_default]
271   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
272   --ld=LD                  use linker LD
273   --x86asmexe=X86ASM       use x86 assembler X86ASM
274   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
275   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276   --host-cc=HOSTCC         use host C compiler HOSTCC
277   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
278   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279   --host-ld=HOSTLD         use host linker HOSTLD
280   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
281   --host-libs=HLIBS        use libs HLIBS when linking for host
282   --host-os=OS             compiler host OS [$target_os]
283   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
284   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
285   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288   --extra-libs=ELIBS       add ELIBS [$ELIBS]
289   --extra-version=STRING   version string suffix []
290   --optflags=OPTFLAGS      override optimization-related compiler flags
291   --enable-pic             build position-independent code
292   --enable-thumb           compile for Thumb instruction set
293   --enable-lto             use link-time optimization
294   --env="ENV=override"     override the environment variables
295
296 Advanced options (experts only):
297   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
298   --custom-allocator=NAME  use a supported custom allocator
299   --disable-symver         disable symbol versioning
300   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301   --disable-safe-bitstream-reader
302                            disable buffer boundary checking in bitreaders
303                            (faster, but may crash)
304   --enable-sram            allow use of on-chip SRAM
305
306 Optimization options (experts only):
307   --disable-asm            disable all assembly optimizations
308   --disable-altivec        disable AltiVec optimizations
309   --disable-vsx            disable VSX optimizations
310   --disable-power8         disable POWER8 optimizations
311   --disable-amd3dnow       disable 3DNow! optimizations
312   --disable-amd3dnowext    disable 3DNow! extended optimizations
313   --disable-mmx            disable MMX optimizations
314   --disable-mmxext         disable MMXEXT optimizations
315   --disable-sse            disable SSE optimizations
316   --disable-sse2           disable SSE2 optimizations
317   --disable-sse3           disable SSE3 optimizations
318   --disable-ssse3          disable SSSE3 optimizations
319   --disable-sse4           disable SSE4 optimizations
320   --disable-sse42          disable SSE4.2 optimizations
321   --disable-avx            disable AVX optimizations
322   --disable-xop            disable XOP optimizations
323   --disable-fma3           disable FMA3 optimizations
324   --disable-fma4           disable FMA4 optimizations
325   --disable-avx2           disable AVX2 optimizations
326   --disable-armv5te        disable armv5te optimizations
327   --disable-armv6          disable armv6 optimizations
328   --disable-armv6t2        disable armv6t2 optimizations
329   --disable-vfp            disable VFP optimizations
330   --disable-neon           disable NEON optimizations
331   --disable-inline-asm     disable use of inline assembly
332   --disable-x86asm         disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335   --disable-debug          disable debugging symbols
336   --enable-debug=LEVEL     set the debug level [$debuglevel]
337   --disable-optimizations  disable compiler optimizations
338   --enable-extra-warnings  enable more compiler warnings
339   --samples=PATH           location of test samples for FATE, if not set use
340                            \$LIBAV_SAMPLES at make invocation time.
341   --enable-neon-clobber-test check NEON registers for clobbering (should be
342                            used only for debugging purposes)
343   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344                            should be used only for debugging purposes)
345   --enable-random          randomly enable/disable components
346   --disable-random
347   --enable-random=LIST     randomly enable/disable specific components or
348   --disable-random=LIST    component groups. LIST is a comma-separated list
349                            of NAME[:PROB] entries where NAME is a component
350                            (group) and PROB the probability associated with
351                            NAME (default 0.5).
352   --random-seed=VALUE      seed value for --enable/disable-random
353   --disable-valgrind-backtrace do not print a backtrace under Valgrind
354                            (only applies to --disable-optimizations builds)
355   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
356                            in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360   exit 0
361 }
362
363 quotes='""'
364
365 log(){
366     echo "$@" >> $logfile
367 }
368
369 log_file(){
370     log BEGIN $1
371     i=1
372     while read line; do
373         printf '%5s   %s\n' "${i}" "${line}"
374         i=$(($i+1))
375     done < $1 >> $logfile
376     log END $1
377 }
378
379 echolog(){
380     log "$@"
381     echo "$@"
382 }
383
384 warn(){
385     log "WARNING: $*"
386     WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390     echolog "$@"
391     cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git.  If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397     if disabled logging; then
398         cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402     else
403         cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407     fi
408     exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421     echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425     v=$(echo "$1" | sed "s/'/'\\\\''/g")
426     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427     echo "$v"
428 }
429
430 cleanws(){
431     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
432 }
433
434 filter(){
435     pat=$1
436     shift
437     for v; do
438         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439     done
440 }
441
442 filter_out(){
443     pat=$1
444     shift
445     for v; do
446         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447     done
448 }
449
450 map(){
451     m=$1
452     shift
453     for v; do eval $m; done
454 }
455
456 add_suffix(){
457     suffix=$1
458     shift
459     for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463     value=$1
464     shift
465     for var in $*; do
466         eval $var=$value
467     done
468 }
469
470 set_weak(){
471     value=$1
472     shift
473     for var; do
474         eval : \${$var:=$value}
475     done
476 }
477
478 sanitize_var_name(){
479     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483     var=$1
484     shift
485     eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489     eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493     for pvar in $*; do
494         eval level=\${${pvar}_level:=0}
495         eval ${pvar}_${level}="\$$pvar"
496         eval ${pvar}_level=$(($level+1))
497     done
498 }
499
500 popvar(){
501     for pvar in $*; do
502         eval level=\${${pvar}_level:-0}
503         test $level = 0 && continue
504         eval level=$(($level-1))
505         eval $pvar="\${${pvar}_${level}}"
506         eval ${pvar}_level=$level
507         eval unset ${pvar}_${level}
508     done
509 }
510
511 enable(){
512     set_all yes $*
513 }
514
515 disable(){
516     set_all no $*
517 }
518
519 enable_weak(){
520     set_weak yes $*
521 }
522
523 disable_weak(){
524     set_weak no $*
525 }
526
527 enable_sanitized(){
528     for var; do
529         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530     done
531 }
532
533 disable_sanitized(){
534     for var; do
535         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536     done
537 }
538
539 do_enable_deep(){
540     for var; do
541         enabled $var && continue
542         eval sel="\$${var}_select"
543         eval sgs="\$${var}_suggest"
544         pushvar var sgs
545         enable_deep $sel
546         popvar sgs
547         enable_deep_weak $sgs
548         popvar var
549     done
550 }
551
552 enable_deep(){
553     do_enable_deep $*
554     enable $*
555 }
556
557 enable_deep_weak(){
558     for var; do
559         disabled $var && continue
560         pushvar var
561         do_enable_deep $var
562         popvar var
563         enable_weak $var
564     done
565 }
566
567 enabled(){
568     test "${1#!}" = "$1" && op== || op=!=
569     eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573     test "${1#!}" = "$1" && op== || op=!=
574     eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578     for opt; do
579         enabled $opt || return 1
580     done
581 }
582
583 disabled_all(){
584     for opt; do
585         disabled $opt || return 1
586     done
587 }
588
589 enabled_any(){
590     for opt; do
591         enabled $opt && return 0
592     done
593 }
594
595 disabled_any(){
596     for opt; do
597         disabled $opt && return 0
598     done
599     return 1
600 }
601
602 set_default(){
603     for opt; do
604         eval : \${$opt:=\$${opt}_default}
605     done
606 }
607
608 is_in(){
609     value=$1
610     shift
611     for var in $*; do
612         [ $var = $value ] && return 0
613     done
614     return 1
615 }
616
617 check_deps(){
618     for cfg; do
619         enabled ${cfg}_checking && die "Circular dependency for $cfg."
620         disabled ${cfg}_checking && continue
621         enable ${cfg}_checking
622
623         eval dep_all="\$${cfg}_deps"
624         eval dep_any="\$${cfg}_deps_any"
625         eval dep_con="\$${cfg}_conflict"
626         eval dep_sel="\$${cfg}_select"
627         eval dep_sgs="\$${cfg}_suggest"
628         eval dep_ifa="\$${cfg}_if"
629         eval dep_ifn="\$${cfg}_if_any"
630
631         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637         enabled_all  $dep_all || disable $cfg
638         enabled_any  $dep_any || disable $cfg
639         disabled_all $dep_con || disable $cfg
640         disabled_any $dep_sel && disable $cfg
641
642         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
645             # filter out library deps, these do not belong in extralibs
646             is_in $dep $LIBRARY_LIST && continue
647             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648         done
649
650         disable ${cfg}_checking
651     done
652 }
653
654 print_config(){
655     pfx=$1
656     files=$2
657     shift 2
658     map 'eval echo "$v \${$v:-no}"' "$@" |
659     awk "BEGIN { split(\"$files\", files) }
660         {
661             c = \"$pfx\" toupper(\$1);
662             v = \$2;
663             sub(/yes/, 1, v);
664             sub(/no/,  0, v);
665             for (f in files) {
666                 file = files[f];
667                 if (file ~ /\\.h\$/) {
668                     printf(\"#define %s %d\\n\", c, v) >>file;
669                 } else if (file ~ /\\.asm\$/) {
670                     printf(\"%%define %s %d\\n\", c, v) >>file;
671                 } else if (file ~ /\\.mak\$/) {
672                     n = -v ? \"\" : \"!\";
673                     printf(\"%s%s=yes\\n\", n, c) >>file;
674                 }
675             }
676         }"
677 }
678
679 print_enabled(){
680     suf=$1
681     shift
682     for v; do
683         enabled $v && printf "%s\n" ${v%$suf}
684     done
685 }
686
687 append(){
688     var=$1
689     shift
690     eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694     var=$1
695     shift
696     eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700     var=$1
701     uniq_list=""
702     for tok in $(eval echo \$$var); do
703         uniq_list="$(filter_out $tok $uniq_list) $tok"
704     done
705     eval "$var=\"${uniq_list}\""
706 }
707
708 resolve(){
709     var=$1
710     tmpvar=
711     for entry in $(eval echo \$$var); do
712         tmpvar="$tmpvar $(eval echo \$${entry})"
713     done
714     eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718     append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722     append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726     append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730     append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734     append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738     append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742     append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746     append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750     append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754     prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758     append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762     append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766     append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770     append compat_objs $1
771     shift
772     map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776     log "$@"
777     "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781     eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785     eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789     log check_cc "$@"
790     cat > $TMPC
791     log_file $TMPC
792     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796     log check_objcc "$@"
797     cat > $TMPC
798     log_file $TMPC
799     check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803     log check_cpp "$@"
804     cat > $TMPC
805     log_file $TMPC
806     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810     eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814     log check_as "$@"
815     cat > $TMPS
816     log_file $TMPS
817     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821     log check_inline_asm "$@"
822     name="$1"
823     code="$2"
824     shift 2
825     disable $name
826     check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832     log check_insn "$@"
833     check_inline_asm ${1}_inline "\"$2\""
834     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838     log check_x86asm "$@"
839     echo "$1" > $TMPS
840     log_file $TMPS
841     shift 1
842     check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846     eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850     log check_ld "$@"
851     flags=$(filter_out '-l*' "$@")
852     libs=$(filter '-l*' "$@")
853     check_cc $($cflags_filter $flags) || return
854     flags=$($ldflags_filter $flags)
855     libs=$($ldflags_filter $libs)
856     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860     hdr=$1
861     test "${hdr%.h}" = "${hdr}" &&
862         echo "#include $hdr"    ||
863         echo "#include <$hdr>"
864 }
865
866 check_code(){
867     log check_code "$@"
868     check=$1
869     headers=$2
870     code=$3
871     shift 3
872     {
873         for hdr in $headers; do
874             print_include $hdr
875         done
876         echo "int main(void) { $code; return 0; }"
877     } | check_$check "$@"
878 }
879
880 check_cppflags(){
881     log check_cppflags "$@"
882     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888     log test_cflags "$@"
889     set -- $($cflags_filter "$@")
890     check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896     log check_cflags "$@"
897     test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901     log test_objcflags "$@"
902     set -- $($objcflags_filter "$@")
903     check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909     log check_objcflags "$@"
910     test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914     log test_ldflags "$@"
915     check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921     log check_ldflags "$@"
922     test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926     log test_stripflags "$@"
927     # call check_cc to get a fresh TMPO
928     check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931     check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935     log check_stripflags "$@"
936     test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940     log check_header "$@"
941     header=$1
942     shift
943     disable_sanitized $header
944     check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951     log check_func "$@"
952     func=$1
953     shift
954     disable $func
955     check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962     log check_mathfunc "$@"
963     func=$1
964     narg=$2
965     shift 2
966     test $narg = 2 && args="f, g" || args="f"
967     disable $func
968     check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976     log check_func_headers "$@"
977     headers=$1
978     funcs=$2
979     shift 2
980     {
981         for hdr in $headers; do
982             print_include $hdr
983         done
984         for func in $funcs; do
985             echo "long check_$func(void) { return (long) $func; }"
986         done
987         echo "int main(void) { return 0; }"
988     } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992     log check_cpp_condition "$@"
993     header=$1
994     condition=$2
995     shift 2
996     check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005     log test_cflags_cpp "$@"
1006     flags=$1
1007     condition=$2
1008     shift 2
1009     set -- $($cflags_filter "$flags")
1010     check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018     log check_lib "$@"
1019     name="$1"
1020     headers="$2"
1021     funcs="$3"
1022     shift 3
1023     disable $name
1024     check_func_headers "$headers" "$funcs" "$@" &&
1025         enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 test_pkg_config(){
1029     log test_pkg_config "$@"
1030     name="$1"
1031     pkg_version="$2"
1032     pkg="${2%% *}"
1033     headers="$3"
1034     funcs="$4"
1035     shift 4
1036     disable $name
1037     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041         enable $name &&
1042         set_sanitized "${name}_cflags"    $pkg_cflags &&
1043         set_sanitized "${name}_extralibs" $pkg_libs
1044 }
1045
1046 check_pkg_config(){
1047     log check_pkg_config "$@"
1048     name="$1"
1049     test_pkg_config "$@" &&
1050         eval add_cflags \$${name}_cflags
1051 }
1052
1053 check_exec(){
1054     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1055 }
1056
1057 check_exec_crash(){
1058     log check_exec_crash "$@"
1059     code=$(cat)
1060
1061     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1062     # are safe but may not be available everywhere.  Thus we use
1063     # raise(SIGTERM) instead.  The check is run in a subshell so we
1064     # can redirect the "Terminated" message from the shell.  SIGBUS
1065     # is not defined by standard C so it is used conditionally.
1066
1067     (check_exec "$@") >> $logfile 2>&1 <<EOF
1068 #include <signal.h>
1069 static void sighandler(int sig){
1070     raise(SIGTERM);
1071 }
1072 int foo(void){
1073     $code
1074 }
1075 int (*func_ptr)(void) = foo;
1076 int main(void){
1077     signal(SIGILL, sighandler);
1078     signal(SIGFPE, sighandler);
1079     signal(SIGSEGV, sighandler);
1080 #ifdef SIGBUS
1081     signal(SIGBUS, sighandler);
1082 #endif
1083     return func_ptr();
1084 }
1085 EOF
1086 }
1087
1088 check_type(){
1089     log check_type "$@"
1090     headers=$1
1091     type=$2
1092     shift 2
1093     disable_sanitized "$type"
1094     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1095 }
1096
1097 check_struct(){
1098     log check_struct "$@"
1099     headers=$1
1100     struct=$2
1101     member=$3
1102     shift 3
1103     disable_sanitized "${struct}_${member}"
1104     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1105         enable_sanitized "${struct}_${member}"
1106 }
1107
1108 check_builtin(){
1109     log check_builtin "$@"
1110     name=$1
1111     headers=$2
1112     builtin=$3
1113     shift 3
1114     disable "$name"
1115     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1116 }
1117
1118 check_compile_assert(){
1119     log check_compile_assert "$@"
1120     name=$1
1121     headers=$2
1122     condition=$3
1123     shift 3
1124     disable "$name"
1125     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1126 }
1127
1128 require(){
1129     log require "$@"
1130     name_version="$1"
1131     name="${1%% *}"
1132     headers="$2"
1133     func="$3"
1134     shift 3
1135     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1136 }
1137
1138 require_header(){
1139     log require "$@"
1140     header="$1"
1141     shift
1142     check_header "$header" "$@" || die "ERROR: $header not found"
1143 }
1144
1145 require_cpp_condition(){
1146     log require "$@"
1147     header="$1"
1148     condition="$2"
1149     shift 2
1150     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1151 }
1152
1153 require_pkg_config(){
1154     log require_pkg_config "$@"
1155     pkg_version="$2"
1156     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1157 }
1158
1159 hostcc_e(){
1160     eval printf '%s\\n' $HOSTCC_E
1161 }
1162
1163 hostcc_o(){
1164     eval printf '%s\\n' $HOSTCC_O
1165 }
1166
1167 check_host_cc(){
1168     log check_host_cc "$@"
1169     cat > $TMPC
1170     log_file $TMPC
1171     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1172 }
1173
1174 check_host_cpp(){
1175     log check_host_cpp "$@"
1176     cat > $TMPC
1177     log_file $TMPC
1178     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1179 }
1180
1181 check_host_cppflags(){
1182     log check_host_cppflags "$@"
1183     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1184 #include <stdlib.h>;
1185 EOF
1186 }
1187
1188 check_host_cflags(){
1189     log check_host_cflags "$@"
1190     set -- $($host_cflags_filter "$@")
1191     check_host_cc "$@" <<EOF && append host_cflags "$@"
1192 int x;
1193 EOF
1194 }
1195
1196 check_host_cpp_condition(){
1197     log check_host_cpp_condition "$@"
1198     header=$1
1199     condition=$2
1200     shift 2
1201     check_host_cpp "$@" <<EOF
1202 #include <$header>
1203 #if !($condition)
1204 #error "unsatisfied condition: $condition"
1205 #endif
1206 EOF
1207 }
1208
1209 apply(){
1210     file=$1
1211     shift
1212     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1213 }
1214
1215 cp_if_changed(){
1216     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1217     mkdir -p "$(dirname $2)"
1218     cp -f "$1" "$2"
1219 }
1220
1221 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1222 # system-dependent things.
1223
1224 AVCODEC_COMPONENTS="
1225     bsfs
1226     decoders
1227     encoders
1228     hwaccels
1229     parsers
1230 "
1231
1232 AVDEVICE_COMPONENTS="
1233     indevs
1234     outdevs
1235 "
1236 AVFILTER_COMPONENTS="
1237     filters
1238 "
1239 AVFORMAT_COMPONENTS="
1240     demuxers
1241     muxers
1242     protocols
1243 "
1244
1245 AVRESAMPLE_COMPONENTS=""
1246 AVUTIL_COMPONENTS=""
1247
1248 COMPONENT_LIST="
1249     $AVCODEC_COMPONENTS
1250     $AVDEVICE_COMPONENTS
1251     $AVFILTER_COMPONENTS
1252     $AVFORMAT_COMPONENTS
1253     $AVRESAMPLE_COMPONENTS
1254     $AVUTIL_COMPONENTS
1255 "
1256
1257 EXAMPLE_LIST="
1258     decode_audio_example
1259     decode_video_example
1260     encode_audio_example
1261     encode_video_example
1262     filter_audio_example
1263     metadata_example
1264     output_example
1265     qsvdec_example
1266     transcode_aac_example
1267 "
1268
1269 # catchall list of things that require external libs to link
1270 EXTRALIBS_LIST="
1271     cpu_init
1272     cws2fws
1273 "
1274
1275 HWACCEL_LIBRARY_NONFREE_LIST="
1276     cuda
1277     cuvid
1278     libnpp
1279 "
1280 HWACCEL_LIBRARY_LIST="
1281     $HWACCEL_LIBRARY_NONFREE_LIST
1282     d3d11va
1283     dxva2
1284     libmfx
1285     mmal
1286     nvenc
1287     omx
1288     vaapi
1289     vda
1290     vdpau
1291 "
1292
1293 EXTERNAL_LIBRARY_GPL_LIST="
1294     libcdio
1295     libx264
1296     libx265
1297     libxavs
1298     libxvid
1299 "
1300
1301 EXTERNAL_LIBRARY_NONFREE_LIST="
1302     libfaac
1303     libfdk_aac
1304     openssl
1305 "
1306
1307 EXTERNAL_LIBRARY_VERSION3_LIST="
1308     libopencore_amrnb
1309     libopencore_amrwb
1310     libvo_aacenc
1311     libvo_amrwbenc
1312 "
1313
1314 EXTERNAL_LIBRARY_LIST="
1315     $EXTERNAL_LIBRARY_GPL_LIST
1316     $EXTERNAL_LIBRARY_NONFREE_LIST
1317     $EXTERNAL_LIBRARY_VERSION3_LIST
1318     avisynth
1319     avxsynth
1320     frei0r
1321     gnutls
1322     libbs2b
1323     libdc1394
1324     libdcadec
1325     libfontconfig
1326     libfreetype
1327     libgsm
1328     libhdcd
1329     libilbc
1330     libjack
1331     libkvazaar
1332     libmp3lame
1333     libopencv
1334     libopenh264
1335     libopenjpeg
1336     libopus
1337     libpulse
1338     librtmp
1339     libschroedinger
1340     libsnappy
1341     libspeex
1342     libtheora
1343     libtwolame
1344     libvorbis
1345     libvpx
1346     libwavpack
1347     libwebp
1348     libxcb
1349     libxcb_shm
1350     libxcb_xfixes
1351 "
1352
1353 SYSTEM_LIBRARY_LIST="
1354     bzlib
1355     zlib
1356 "
1357
1358 FEATURE_LIST="
1359     gray
1360     hardcoded_tables
1361     omx_rpi
1362     runtime_cpudetect
1363     safe_bitstream_reader
1364     shared
1365     small
1366     sram
1367     static
1368     swscale_alpha
1369 "
1370
1371 LIBRARY_LIST="
1372     avcodec
1373     avdevice
1374     avfilter
1375     avformat
1376     avresample
1377     avutil
1378     swscale
1379 "
1380
1381 LICENSE_LIST="
1382     gpl
1383     nonfree
1384     version3
1385 "
1386
1387 PROGRAM_LIST="
1388     avconv
1389     avplay
1390     avprobe
1391 "
1392
1393 SUBSYSTEM_LIST="
1394     dct
1395     doc
1396     error_resilience
1397     faan
1398     fft
1399     lsp
1400     lzo
1401     mdct
1402     network
1403     rdft
1404 "
1405
1406 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1407 CONFIG_LIST="
1408     $EXAMPLE_LIST
1409     $EXTERNAL_LIBRARY_LIST
1410     $HWACCEL_LIBRARY_LIST
1411     $FEATURE_LIST
1412     $LICENSE_LIST
1413     $LIBRARY_LIST
1414     $PROGRAM_LIST
1415     $SUBSYSTEM_LIST
1416     $SYSTEM_LIBRARY_LIST
1417     neon_clobber_test
1418     pic
1419     pod2man
1420     texi2html
1421     thumb
1422     valgrind_backtrace
1423     xmm_clobber_test
1424     $COMPONENT_LIST
1425 "
1426
1427 THREADS_LIST="
1428     pthreads
1429     w32threads
1430 "
1431
1432 ATOMICS_LIST="
1433     atomics_gcc
1434     atomics_suncc
1435     atomics_win32
1436 "
1437
1438 ARCH_LIST="
1439     aarch64
1440     alpha
1441     arm
1442     avr32
1443     avr32_ap
1444     avr32_uc
1445     bfin
1446     ia64
1447     m68k
1448     mips
1449     mips64
1450     parisc
1451     ppc
1452     ppc64
1453     s390
1454     sh4
1455     sparc
1456     sparc64
1457     tilegx
1458     tilepro
1459     tomi
1460     x86
1461     x86_32
1462     x86_64
1463 "
1464
1465 ARCH_EXT_LIST_ARM="
1466     armv5te
1467     armv6
1468     armv6t2
1469     armv8
1470     neon
1471     vfp
1472     vfpv3
1473 "
1474
1475 ARCH_EXT_LIST_X86_SIMD="
1476     amd3dnow
1477     amd3dnowext
1478     avx
1479     avx2
1480     fma3
1481     fma4
1482     mmx
1483     mmxext
1484     sse
1485     sse2
1486     sse3
1487     sse4
1488     sse42
1489     ssse3
1490     xop
1491 "
1492
1493 ARCH_EXT_LIST_PPC="
1494     altivec
1495     dcbzl
1496     ldbrx
1497     power8
1498     ppc4xx
1499     vsx
1500 "
1501
1502 ARCH_EXT_LIST_X86="
1503     $ARCH_EXT_LIST_X86_SIMD
1504     cpunop
1505     i686
1506 "
1507
1508 ARCH_EXT_LIST_MIPS="
1509     loongson
1510     mips32r1
1511     mips64r1
1512     mips32r2
1513     mips64r2
1514     mips32r6
1515     mips64r6
1516 "
1517
1518 ARCH_EXT_LIST="
1519     $ARCH_EXT_LIST_ARM
1520     $ARCH_EXT_LIST_MIPS
1521     $ARCH_EXT_LIST_PPC
1522     $ARCH_EXT_LIST_X86
1523     vis
1524 "
1525
1526 ARCH_FEATURES="
1527     aligned_stack
1528     fast_64bit
1529     fast_clz
1530     fast_cmov
1531     local_aligned_8
1532     local_aligned_16
1533     local_aligned_32
1534     simd_align_16
1535     simd_align_32
1536 "
1537
1538 BUILTIN_LIST="
1539     atomic_cas_ptr
1540     machine_rw_barrier
1541     MemoryBarrier
1542     mm_empty
1543     rdtsc
1544     sem_timedwait
1545     sync_val_compare_and_swap
1546 "
1547 HAVE_LIST_CMDLINE="
1548     inline_asm
1549     symver
1550     x86asm
1551 "
1552
1553 HAVE_LIST_PUB="
1554     bigendian
1555     fast_unaligned
1556 "
1557
1558 HEADERS_LIST="
1559     AVFoundation_AVFoundation_h
1560     arpa_inet_h
1561     cdio_paranoia_h
1562     cdio_paranoia_paranoia_h
1563     dispatch_dispatch_h
1564     dev_bktr_ioctl_bt848_h
1565     dev_bktr_ioctl_meteor_h
1566     dev_ic_bt8xx_h
1567     dev_video_bktr_ioctl_bt848_h
1568     dev_video_meteor_ioctl_meteor_h
1569     direct_h
1570     dxgidebug_h
1571     dxva_h
1572     io_h
1573     mach_mach_time_h
1574     machine_ioctl_bt848_h
1575     machine_ioctl_meteor_h
1576     malloc_h
1577     poll_h
1578     stdatomic_h
1579     sys_param_h
1580     sys_resource_h
1581     sys_select_h
1582     sys_soundcard_h
1583     sys_time_h
1584     sys_un_h
1585     sys_videoio_h
1586     unistd_h
1587     valgrind_valgrind_h
1588     windows_h
1589     winsock2_h
1590 "
1591
1592 INTRINSICS_LIST="
1593     intrinsics_neon
1594 "
1595
1596 MATH_FUNCS="
1597     atanf
1598     atan2f
1599     cbrtf
1600     cosf
1601     exp2
1602     exp2f
1603     expf
1604     isinf
1605     isnan
1606     ldexpf
1607     llrint
1608     llrintf
1609     log2
1610     log2f
1611     log10f
1612     lrint
1613     lrintf
1614     powf
1615     rint
1616     round
1617     roundf
1618     sinf
1619     trunc
1620     truncf
1621 "
1622
1623 SYSTEM_FUNCS="
1624     aligned_malloc
1625     clock_gettime
1626     closesocket
1627     CommandLineToArgvW
1628     CryptGenRandom
1629     fcntl
1630     getaddrinfo
1631     gethrtime
1632     getopt
1633     GetProcessAffinityMask
1634     GetProcessMemoryInfo
1635     GetProcessTimes
1636     getrusage
1637     GetSystemTimeAsFileTime
1638     gettimeofday
1639     gmtime_r
1640     inet_aton
1641     isatty
1642     localtime_r
1643     mach_absolute_time
1644     MapViewOfFile
1645     memalign
1646     mmap
1647     mprotect
1648     nanosleep
1649     posix_memalign
1650     sched_getaffinity
1651     SetConsoleTextAttribute
1652     setmode
1653     setrlimit
1654     Sleep
1655     strerror_r
1656     sysconf
1657     sysctl
1658     usleep
1659     VirtualAlloc
1660 "
1661
1662 TOOLCHAIN_FEATURES="
1663     as_arch_directive
1664     as_fpu_directive
1665     as_func
1666     as_object_arch
1667     asm_mod_q
1668     attribute_may_alias
1669     attribute_packed
1670     blocks_extension
1671     ebp_available
1672     ebx_available
1673     gnu_as
1674     ibm_asm
1675     inline_asm_labels
1676     pragma_deprecated
1677     symver_asm_label
1678     symver_gnu_asm
1679     vfp_args
1680     xform_asm
1681     xmm_clobbers
1682 "
1683
1684 TYPES_LIST="
1685     CONDITION_VARIABLE_Ptr
1686     CUVIDDECODECREATEINFO_bitDepthMinus8
1687     socklen_t
1688     struct_addrinfo
1689     struct_group_source_req
1690     struct_ip_mreq_source
1691     struct_ipv6_mreq
1692     struct_pollfd
1693     struct_rusage_ru_maxrss
1694     struct_sockaddr_in6
1695     struct_sockaddr_sa_len
1696     struct_sockaddr_storage
1697     struct_v4l2_frmivalenum_discrete
1698 "
1699
1700 HAVE_LIST="
1701     $ARCH_EXT_LIST
1702     $(add_suffix _external $ARCH_EXT_LIST)
1703     $(add_suffix _inline   $ARCH_EXT_LIST)
1704     $ARCH_FEATURES
1705     $BUILTIN_LIST
1706     $HAVE_LIST_CMDLINE
1707     $HAVE_LIST_PUB
1708     $HEADERS_LIST
1709     $INTRINSICS_LIST
1710     $MATH_FUNCS
1711     $SYSTEM_FUNCS
1712     $THREADS_LIST
1713     $TOOLCHAIN_FEATURES
1714     $TYPES_LIST
1715     dos_paths
1716     libc_msvcrt
1717     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1718     sdl
1719     section_data_rel_ro
1720     threads
1721     uwp
1722     vaapi_drm
1723     vaapi_x11
1724     vdpau_x11
1725 "
1726
1727 # options emitted with CONFIG_ prefix but not available on the command line
1728 CONFIG_EXTRA="
1729     aandcttables
1730     ac3dsp
1731     adts_header
1732     audio_frame_queue
1733     audiodsp
1734     blockdsp
1735     bswapdsp
1736     cabac
1737     cbs
1738     cbs_h264
1739     cbs_h265
1740     cbs_mpeg2
1741     dirac_parse
1742     dvprofile
1743     faandct
1744     faanidct
1745     fdctdsp
1746     flacdsp
1747     fmtconvert
1748     g722dsp
1749     gmp
1750     golomb
1751     gplv3
1752     h263dsp
1753     h264chroma
1754     h264dsp
1755     h264parse
1756     h264pred
1757     h264qpel
1758     hevcparse
1759     hpeldsp
1760     huffman
1761     huffyuvdsp
1762     huffyuvencdsp
1763     idctdsp
1764     iirfilter
1765     imdct15
1766     intrax8
1767     iso_media
1768     ividsp
1769     jpegtables
1770     lgplv3
1771     libx262
1772     libxcb_shape
1773     lpc
1774     lzf
1775     me_cmp
1776     mpeg_er
1777     mpegaudio
1778     mpegaudiodsp
1779     mpegaudioheader
1780     mpegvideo
1781     mpegvideoenc
1782     mss34dsp
1783     pixblockdsp
1784     qpeldsp
1785     qsv
1786     qsvdec
1787     qsvenc
1788     qsvvpp
1789     rangecoder
1790     riffdec
1791     riffenc
1792     rtpdec
1793     rtpenc_chain
1794     rv34dsp
1795     sinewin
1796     snappy
1797     srtp
1798     startcode
1799     texturedsp
1800     texturedspenc
1801     tpeldsp
1802     vaapi_encode
1803     vc1dsp
1804     videodsp
1805     vp3dsp
1806     vp56dsp
1807     vp8dsp
1808     wma_freqs
1809     wmv2dsp
1810 "
1811
1812 CMDLINE_SELECT="
1813     $ARCH_EXT_LIST
1814     $CONFIG_LIST
1815     $HAVE_LIST_CMDLINE
1816     $THREADS_LIST
1817     asm
1818     cross_compile
1819     debug
1820     extra_warnings
1821     logging
1822     lto
1823     optimizations
1824     rpath
1825 "
1826
1827 PATHS_LIST="
1828     bindir
1829     datadir
1830     docdir
1831     incdir
1832     libdir
1833     mandir
1834     prefix
1835     shlibdir
1836 "
1837
1838 CMDLINE_SET="
1839     $PATHS_LIST
1840     ar
1841     arch
1842     as
1843     cc
1844     objcc
1845     cpu
1846     cross_prefix
1847     custom_allocator
1848     dep_cc
1849     env
1850     extra_version
1851     host_cc
1852     host_cflags
1853     host_extralibs
1854     host_ld
1855     host_ldflags
1856     host_os
1857     ignore_tests
1858     ld
1859     logfile
1860     malloc_prefix
1861     nm
1862     optflags
1863     pkg_config
1864     pkg_config_flags
1865     random_seed
1866     samples
1867     sysinclude
1868     sysroot
1869     target_exec
1870     target_os
1871     target_path
1872     target_samples
1873     toolchain
1874     x86asmexe
1875 "
1876
1877 CMDLINE_APPEND="
1878     extra_cflags
1879     extra_objcflags
1880     host_cppflags
1881 "
1882
1883 # code dependency declarations
1884
1885 # architecture extensions
1886
1887 armv5te_deps="arm"
1888 armv6_deps="arm"
1889 armv6t2_deps="arm"
1890 armv8_deps="aarch64"
1891 neon_deps_any="aarch64 arm"
1892 intrinsics_neon_deps="neon"
1893 vfp_deps_any="aarch64 arm"
1894 vfpv3_deps="vfp"
1895
1896 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1897
1898 altivec_deps="ppc"
1899 dcbzl_deps="ppc"
1900 ldbrx_deps="ppc"
1901 ppc4xx_deps="ppc"
1902 vsx_deps="altivec"
1903 power8_deps="vsx"
1904
1905 loongson_deps="mips"
1906 mips32r1_deps="mips32"
1907 mips32r2_deps="mips32"
1908 mips32r6_deps="mips32"
1909 mips64r1_deps="mips64"
1910 mips64r2_deps="mips64"
1911 mips64r6_deps="mips64"
1912
1913 vis_deps="sparc"
1914
1915 cpunop_deps="i686"
1916 x86_64_select="i686"
1917 x86_64_suggest="fast_cmov"
1918
1919 amd3dnow_deps="mmx"
1920 amd3dnowext_deps="amd3dnow"
1921 i686_deps="x86"
1922 mmx_deps="x86"
1923 mmxext_deps="mmx"
1924 sse_deps="mmxext"
1925 sse2_deps="sse"
1926 sse3_deps="sse2"
1927 ssse3_deps="sse3"
1928 sse4_deps="ssse3"
1929 sse42_deps="sse4"
1930 avx_deps="sse42"
1931 xop_deps="avx"
1932 fma3_deps="avx"
1933 fma4_deps="avx"
1934 avx2_deps="avx"
1935
1936 mmx_external_deps="x86asm"
1937 mmx_inline_deps="inline_asm x86"
1938 mmx_suggest="mmx_external mmx_inline"
1939
1940 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1941     eval dep=\$${ext}_deps
1942     eval ${ext}_external_deps='"${dep}_external"'
1943     eval ${ext}_inline_deps='"${dep}_inline"'
1944     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1945 done
1946
1947 aligned_stack_if_any="aarch64 ppc x86"
1948 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1949 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1950 fast_unaligned_if_any="aarch64 ppc x86"
1951 simd_align_16_if_any="altivec neon sse"
1952 simd_align_32_if_any="avx"
1953
1954 # system capabilities
1955 symver_if_any="symver_asm_label symver_gnu_asm"
1956 valgrind_backtrace_conflict="optimizations"
1957 valgrind_backtrace_deps="valgrind_valgrind_h"
1958
1959 # threading support
1960 atomics_gcc_if="sync_val_compare_and_swap"
1961 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1962 atomics_win32_if="MemoryBarrier"
1963 atomics_native_if_any="$ATOMICS_LIST"
1964 w32threads_deps="atomics_native"
1965 threads_if_any="$THREADS_LIST"
1966
1967 # subsystems
1968 cbs_h264_select="cbs golomb"
1969 cbs_h265_select="cbs golomb"
1970 cbs_mpeg2_select="cbs"
1971 dct_select="rdft"
1972 dirac_parse_select="golomb"
1973 error_resilience_select="me_cmp"
1974 faandct_deps="faan"
1975 faandct_select="fdctdsp"
1976 faanidct_deps="faan"
1977 faanidct_select="idctdsp"
1978 h264dsp_select="startcode"
1979 hevcparse_select="golomb"
1980 intrax8_select="blockdsp idctdsp"
1981 mdct_select="fft"
1982 rdft_select="fft"
1983 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1984 mpeg_er_select="error_resilience"
1985 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1986 mpegaudiodsp_select="dct"
1987 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1988 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1989 vc1dsp_select="h264chroma qpeldsp startcode"
1990
1991 # decoders / encoders
1992 aac_decoder_select="adts_header imdct15 mdct sinewin"
1993 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1994 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1995 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1996 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1997 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1998 adpcm_g722_decoder_select="g722dsp"
1999 adpcm_g722_encoder_select="g722dsp"
2000 aic_decoder_select="golomb idctdsp"
2001 alac_encoder_select="lpc"
2002 als_decoder_select="bswapdsp"
2003 amrnb_decoder_select="lsp"
2004 amrwb_decoder_select="lsp"
2005 amv_decoder_select="sp5x_decoder"
2006 ape_decoder_select="bswapdsp"
2007 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2008 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2009 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2010 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2011 atrac1_decoder_select="mdct sinewin"
2012 atrac3_decoder_select="mdct"
2013 atrac3p_decoder_select="mdct sinewin"
2014 bink_decoder_select="blockdsp hpeldsp"
2015 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2016 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2017 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2018 clearvideo_decoder_select="idctdsp"
2019 cllc_decoder_select="bswapdsp"
2020 comfortnoise_encoder_select="lpc"
2021 cook_decoder_select="audiodsp mdct sinewin"
2022 cscd_decoder_select="lzo"
2023 cscd_decoder_suggest="zlib"
2024 dca_decoder_select="fmtconvert mdct"
2025 dds_decoder_select="texturedsp"
2026 dnxhd_decoder_select="blockdsp idctdsp"
2027 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2028 dvvideo_decoder_select="dvprofile idctdsp"
2029 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2030 dxa_decoder_deps="zlib"
2031 dxv_decoder_select="lzf texturedsp"
2032 eac3_decoder_select="ac3_decoder"
2033 eac3_encoder_select="ac3_encoder"
2034 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2035 eatgq_decoder_select="aandcttables idctdsp"
2036 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2037 exr_decoder_deps="zlib"
2038 ffv1_decoder_select="rangecoder"
2039 ffv1_encoder_select="rangecoder"
2040 ffvhuff_decoder_select="huffyuv_decoder"
2041 ffvhuff_encoder_select="huffyuv_encoder"
2042 fic_decoder_select="golomb"
2043 flac_decoder_select="flacdsp"
2044 flac_encoder_select="bswapdsp flacdsp lpc"
2045 flashsv_decoder_deps="zlib"
2046 flashsv_encoder_deps="zlib"
2047 flashsv2_decoder_deps="zlib"
2048 flv_decoder_select="h263_decoder"
2049 flv_encoder_select="h263_encoder"
2050 fourxm_decoder_select="blockdsp bswapdsp"
2051 fraps_decoder_select="bswapdsp huffman"
2052 g2m_decoder_deps="zlib"
2053 g2m_decoder_select="blockdsp idctdsp jpegtables"
2054 h261_decoder_select="mpeg_er mpegvideo"
2055 h261_encoder_select="aandcttables mpegvideoenc"
2056 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2057 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2058 h263i_decoder_select="h263_decoder"
2059 h263p_encoder_select="h263_encoder"
2060 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2061 h264_decoder_suggest="error_resilience"
2062 hap_decoder_select="snappy texturedsp"
2063 hap_encoder_deps="libsnappy"
2064 hap_encoder_select="texturedspenc"
2065 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2066 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2067 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2068 iac_decoder_select="imc_decoder"
2069 imc_decoder_select="bswapdsp fft mdct sinewin"
2070 indeo3_decoder_select="hpeldsp"
2071 indeo4_decoder_select="ividsp"
2072 indeo5_decoder_select="ividsp"
2073 interplay_video_decoder_select="hpeldsp"
2074 jpegls_decoder_select="mjpeg_decoder"
2075 jv_decoder_select="blockdsp"
2076 lagarith_decoder_select="huffyuvdsp"
2077 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2078 magicyuv_decoder_select="huffyuvdsp"
2079 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2080 metasound_decoder_select="lsp mdct sinewin"
2081 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2082 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2083 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2084 mjpegb_decoder_select="mjpeg_decoder"
2085 mlp_decoder_select="mlp_parser"
2086 motionpixels_decoder_select="bswapdsp"
2087 mp1_decoder_select="mpegaudio"
2088 mp1float_decoder_select="mpegaudio"
2089 mp2_decoder_select="mpegaudio"
2090 mp2float_decoder_select="mpegaudio"
2091 mp3_decoder_select="mpegaudio"
2092 mp3adu_decoder_select="mpegaudio"
2093 mp3adufloat_decoder_select="mpegaudio"
2094 mp3float_decoder_select="mpegaudio"
2095 mp3on4_decoder_select="mpegaudio"
2096 mp3on4float_decoder_select="mpegaudio"
2097 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2098 mpc8_decoder_select="mpegaudiodsp"
2099 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2100 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2101 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2102 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2103 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2104 mpeg4_encoder_select="h263_encoder"
2105 msa1_decoder_select="mss34dsp"
2106 msmpeg4v1_decoder_select="h263_decoder"
2107 msmpeg4v2_decoder_select="h263_decoder"
2108 msmpeg4v2_encoder_select="h263_encoder"
2109 msmpeg4v3_decoder_select="h263_decoder"
2110 msmpeg4v3_encoder_select="h263_encoder"
2111 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2112 mts2_decoder_select="mss34dsp"
2113 mxpeg_decoder_select="mjpeg_decoder"
2114 nellymoser_decoder_select="mdct sinewin"
2115 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2116 nuv_decoder_select="idctdsp lzo"
2117 on2avc_decoder_select="mdct"
2118 opus_decoder_deps="avresample"
2119 opus_decoder_select="imdct15"
2120 png_decoder_deps="zlib"
2121 png_encoder_deps="zlib"
2122 png_encoder_select="huffyuvencdsp"
2123 prores_decoder_select="idctdsp"
2124 prores_encoder_select="fdctdsp"
2125 qcelp_decoder_select="lsp"
2126 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2127 ra_144_encoder_select="audio_frame_queue lpc"
2128 ralf_decoder_select="golomb"
2129 rscc_decoder_deps="zlib"
2130 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2131 rv10_encoder_select="h263_encoder"
2132 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2133 rv20_encoder_select="h263_encoder"
2134 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2135 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2136 screenpresso_decoder_deps="zlib"
2137 sipr_decoder_select="lsp"
2138 sp5x_decoder_select="mjpeg_decoder"
2139 svq1_decoder_select="hpeldsp"
2140 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2141 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2142 svq3_decoder_suggest="zlib"
2143 tak_decoder_select="audiodsp"
2144 tdsc_decoder_deps="zlib"
2145 tdsc_decoder_select="mjpeg_decoder"
2146 theora_decoder_select="vp3_decoder"
2147 thp_decoder_select="mjpeg_decoder"
2148 tiff_decoder_suggest="zlib"
2149 tiff_encoder_suggest="zlib"
2150 truehd_decoder_select="mlp_decoder"
2151 truemotion2_decoder_select="bswapdsp"
2152 truespeech_decoder_select="bswapdsp"
2153 tscc_decoder_deps="zlib"
2154 txd_decoder_select="texturedsp"
2155 twinvq_decoder_select="mdct lsp sinewin"
2156 utvideo_decoder_select="bswapdsp huffyuvdsp"
2157 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2158 vble_decoder_select="huffyuvdsp"
2159 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2160 vc1image_decoder_select="vc1_decoder"
2161 vorbis_decoder_select="mdct"
2162 vorbis_encoder_select="mdct"
2163 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2164 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2165 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2166 vp6a_decoder_select="vp6_decoder"
2167 vp6f_decoder_select="vp6_decoder"
2168 vp7_decoder_select="h264pred videodsp vp8dsp"
2169 vp8_decoder_select="h264pred videodsp vp8dsp"
2170 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2171 webp_decoder_select="vp8_decoder"
2172 wmapro_decoder_select="mdct sinewin wma_freqs"
2173 wmav1_decoder_select="mdct sinewin wma_freqs"
2174 wmav1_encoder_select="mdct sinewin wma_freqs"
2175 wmav2_decoder_select="mdct sinewin wma_freqs"
2176 wmav2_encoder_select="mdct sinewin wma_freqs"
2177 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2178 wmv1_decoder_select="h263_decoder"
2179 wmv1_encoder_select="h263_encoder"
2180 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2181 wmv2_encoder_select="h263_encoder wmv2dsp"
2182 wmv3_decoder_select="vc1_decoder"
2183 wmv3image_decoder_select="wmv3_decoder"
2184 zerocodec_decoder_deps="zlib"
2185 zlib_decoder_deps="zlib"
2186 zlib_encoder_deps="zlib"
2187 zmbv_decoder_deps="zlib"
2188 zmbv_encoder_deps="zlib"
2189
2190 # hardware accelerators
2191 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2192 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2193 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2194 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2195
2196 h263_vaapi_hwaccel_deps="vaapi"
2197 h263_vaapi_hwaccel_select="h263_decoder"
2198 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2199 h264_cuvid_hwaccel_select="h264_decoder"
2200 h264_d3d11va_hwaccel_deps="d3d11va"
2201 h264_d3d11va_hwaccel_select="h264_decoder"
2202 h264_d3d11va2_hwaccel_deps="d3d11va"
2203 h264_d3d11va2_hwaccel_select="h264_decoder"
2204 h264_dxva2_hwaccel_deps="dxva2"
2205 h264_dxva2_hwaccel_select="h264_decoder"
2206 h264_mmal_hwaccel_deps="mmal"
2207 h264_qsv_hwaccel_deps="libmfx"
2208 h264_vaapi_hwaccel_deps="vaapi"
2209 h264_vaapi_hwaccel_select="h264_decoder"
2210 h264_vda_hwaccel_deps="vda"
2211 h264_vda_hwaccel_select="h264_decoder"
2212 h264_vda_old_hwaccel_deps="vda"
2213 h264_vda_old_hwaccel_select="h264_decoder"
2214 h264_vdpau_hwaccel_deps="vdpau"
2215 h264_vdpau_hwaccel_select="h264_decoder"
2216 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2217 hevc_cuvid_hwaccel_select="hevc_decoder"
2218 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2219 hevc_d3d11va_hwaccel_select="hevc_decoder"
2220 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2221 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2222 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2223 hevc_dxva2_hwaccel_select="hevc_decoder"
2224 hevc_qsv_hwaccel_deps="libmfx"
2225 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2226 hevc_vaapi_hwaccel_select="hevc_decoder"
2227 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2228 hevc_vdpau_hwaccel_select="hevc_decoder"
2229 mpeg1_vdpau_hwaccel_deps="vdpau"
2230 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2231 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2232 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2233 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2234 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2235 mpeg2_dxva2_hwaccel_deps="dxva2"
2236 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_mmal_hwaccel_deps="mmal"
2238 mpeg2_qsv_hwaccel_deps="libmfx"
2239 mpeg2_vaapi_hwaccel_deps="vaapi"
2240 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2241 mpeg2_vdpau_hwaccel_deps="vdpau"
2242 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2243 mpeg4_vaapi_hwaccel_deps="vaapi"
2244 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2245 mpeg4_vdpau_hwaccel_deps="vdpau"
2246 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2247 vc1_d3d11va_hwaccel_deps="d3d11va"
2248 vc1_d3d11va_hwaccel_select="vc1_decoder"
2249 vc1_d3d11va2_hwaccel_deps="d3d11va"
2250 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2251 vc1_dxva2_hwaccel_deps="dxva2"
2252 vc1_dxva2_hwaccel_select="vc1_decoder"
2253 vc1_mmal_hwaccel_deps="mmal"
2254 vc1_qsv_hwaccel_deps="libmfx"
2255 vc1_vaapi_hwaccel_deps="vaapi"
2256 vc1_vaapi_hwaccel_select="vc1_decoder"
2257 vc1_vdpau_hwaccel_deps="vdpau"
2258 vc1_vdpau_hwaccel_select="vc1_decoder"
2259 vp8_qsv_hwaccel_deps="libmfx"
2260 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2261 vp8_vaapi_hwaccel_select="vp8_decoder"
2262 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2263 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2264 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2265 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2266 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2267
2268 # hardware-accelerated codecs
2269 nvenc_deps_any="libdl LoadLibrary"
2270 omx_deps="libdl pthreads"
2271 omx_rpi_select="omx"
2272 qsv_deps="libmfx"
2273 qsvdec_select="qsv"
2274 qsvenc_select="qsv"
2275 qsvvpp_select="qsv"
2276 vaapi_encode_deps="vaapi"
2277
2278 hwupload_cuda_filter_deps="cuda"
2279 scale_npp_filter_deps="cuda libnpp"
2280
2281 h264_mmal_decoder_deps="mmal"
2282 h264_nvenc_encoder_deps="nvenc"
2283 h264_omx_encoder_deps="omx"
2284 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2285 h264_qsv_encoder_select="qsvenc"
2286 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2287 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2288 hevc_nvenc_encoder_deps="nvenc"
2289 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2290 hevc_qsv_encoder_select="hevcparse qsvenc"
2291 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2292 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2293 mjpeg_qsv_encoder_deps="libmfx"
2294 mjpeg_qsv_encoder_select="qsvenc"
2295 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2296 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2297 mpeg2_mmal_decoder_deps="mmal"
2298 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2299 mpeg2_qsv_encoder_select="qsvenc"
2300 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2301 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2302 mpeg4_omx_encoder_deps="omx"
2303 vc1_mmal_decoder_deps="mmal"
2304 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2305 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2306 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2307 vp8_vaapi_encoder_select="vaapi_encode"
2308 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2309 vp9_vaapi_encoder_select="vaapi_encode"
2310
2311 nvenc_h264_encoder_select="h264_nvenc_encoder"
2312 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2313
2314 # parsers
2315 aac_parser_select="adts_header"
2316 h264_parser_select="golomb h264dsp h264parse"
2317 hevc_parser_select="hevcparse"
2318 mpegaudio_parser_select="mpegaudioheader"
2319 mpegvideo_parser_select="mpegvideo"
2320 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2321 vc1_parser_select="vc1dsp"
2322
2323 # bitstream_filters
2324 aac_adtstoasc_bsf_select="adts_header"
2325 h264_metadata_bsf_select="cbs_h264"
2326 h264_redundant_pps_bsf_select="cbs_h264"
2327 hevc_metadata_bsf_select="cbs_h265"
2328 mjpeg2jpeg_bsf_select="jpegtables"
2329 mpeg2_metadata_bsf_select="cbs_mpeg2"
2330 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2331
2332 # external libraries
2333 avisynth_deps="LoadLibrary"
2334 avxsynth_deps="libdl"
2335 avisynth_demuxer_deps_any="avisynth avxsynth"
2336 avisynth_demuxer_select="riffdec"
2337 libdcadec_decoder_deps="libdcadec"
2338 libfaac_encoder_deps="libfaac"
2339 libfaac_encoder_select="audio_frame_queue"
2340 libfdk_aac_decoder_deps="libfdk_aac"
2341 libfdk_aac_encoder_deps="libfdk_aac"
2342 libfdk_aac_encoder_select="audio_frame_queue"
2343 libgsm_decoder_deps="libgsm"
2344 libgsm_encoder_deps="libgsm"
2345 libgsm_ms_decoder_deps="libgsm"
2346 libgsm_ms_encoder_deps="libgsm"
2347 libilbc_decoder_deps="libilbc"
2348 libilbc_encoder_deps="libilbc"
2349 libkvazaar_encoder_deps="libkvazaar"
2350 libmp3lame_encoder_deps="libmp3lame"
2351 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2352 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2353 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2354 libopencore_amrnb_encoder_select="audio_frame_queue"
2355 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2356 libopenh264_decoder_deps="libopenh264"
2357 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2358 libopenh264_encoder_deps="libopenh264"
2359 libopenjpeg_decoder_deps="libopenjpeg"
2360 libopenjpeg_encoder_deps="libopenjpeg"
2361 libopus_decoder_deps="libopus"
2362 libopus_encoder_deps="libopus"
2363 libopus_encoder_select="audio_frame_queue"
2364 libschroedinger_decoder_deps="libschroedinger"
2365 libschroedinger_encoder_deps="libschroedinger"
2366 libspeex_decoder_deps="libspeex"
2367 libspeex_encoder_deps="libspeex"
2368 libspeex_encoder_select="audio_frame_queue"
2369 libtheora_encoder_deps="libtheora"
2370 libtwolame_encoder_deps="libtwolame"
2371 libvo_aacenc_encoder_deps="libvo_aacenc"
2372 libvo_aacenc_encoder_select="audio_frame_queue"
2373 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2374 libvorbis_encoder_deps="libvorbis"
2375 libvorbis_encoder_select="audio_frame_queue"
2376 libvpx_vp8_decoder_deps="libvpx"
2377 libvpx_vp8_encoder_deps="libvpx"
2378 libvpx_vp9_decoder_deps="libvpx"
2379 libvpx_vp9_encoder_deps="libvpx"
2380 libwavpack_encoder_deps="libwavpack"
2381 libwavpack_encoder_select="audio_frame_queue"
2382 libwebp_encoder_deps="libwebp"
2383 libx262_encoder_deps="libx262"
2384 libx264_encoder_deps="libx264"
2385 libx265_encoder_deps="libx265"
2386 libxavs_encoder_deps="libxavs"
2387 libxvid_encoder_deps="libxvid mkstemp"
2388
2389 # demuxers / muxers
2390 ac3_demuxer_select="ac3_parser"
2391 asf_demuxer_select="riffdec"
2392 asf_muxer_select="riffenc"
2393 asf_stream_muxer_select="asf_muxer"
2394 avi_demuxer_select="iso_media riffdec"
2395 avi_muxer_select="riffenc"
2396 caf_demuxer_select="iso_media riffdec"
2397 dash_muxer_select="mp4_muxer"
2398 dirac_demuxer_select="dirac_parser"
2399 dv_demuxer_select="dvprofile"
2400 dv_muxer_select="dvprofile"
2401 dxa_demuxer_select="riffdec"
2402 eac3_demuxer_select="ac3_parser"
2403 f4v_muxer_select="mov_muxer"
2404 flac_demuxer_select="flac_parser"
2405 hds_muxer_select="flv_muxer"
2406 hls_muxer_select="mpegts_muxer"
2407 ipod_muxer_select="mov_muxer"
2408 ismv_muxer_select="mov_muxer"
2409 matroska_audio_muxer_select="matroska_muxer"
2410 matroska_demuxer_select="iso_media riffdec"
2411 matroska_demuxer_suggest="bzlib lzo zlib"
2412 matroska_muxer_select="iso_media riffenc"
2413 mmf_muxer_select="riffenc"
2414 mov_demuxer_select="iso_media riffdec"
2415 mov_demuxer_suggest="zlib"
2416 mov_muxer_select="iso_media riffenc rtpenc_chain"
2417 mp3_demuxer_select="mpegaudio_parser"
2418 mp3_muxer_select="mpegaudioheader"
2419 mp4_muxer_select="mov_muxer"
2420 mpegts_demuxer_select="iso_media"
2421 mpegts_muxer_select="adts_muxer latm_muxer"
2422 mpegtsraw_demuxer_select="mpegts_demuxer"
2423 mxf_d10_muxer_select="mxf_muxer"
2424 nut_muxer_select="riffenc"
2425 nuv_demuxer_select="riffdec"
2426 oga_muxer_select="ogg_muxer"
2427 ogg_demuxer_select="dirac_parse"
2428 opus_muxer_select="ogg_muxer"
2429 psp_muxer_select="mov_muxer"
2430 rtp_demuxer_select="sdp_demuxer"
2431 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2432 rtsp_demuxer_select="http_protocol rtpdec"
2433 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2434 sap_demuxer_select="sdp_demuxer"
2435 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2436 sdp_demuxer_select="rtpdec"
2437 smoothstreaming_muxer_select="ismv_muxer"
2438 spdif_demuxer_select="adts_header"
2439 spdif_muxer_select="adts_header"
2440 spx_muxer_select="ogg_muxer"
2441 swf_demuxer_suggest="zlib"
2442 tak_demuxer_select="tak_parser"
2443 tg2_muxer_select="mov_muxer"
2444 tgp_muxer_select="mov_muxer"
2445 w64_demuxer_select="wav_demuxer"
2446 wav_demuxer_select="riffdec"
2447 wav_muxer_select="riffenc"
2448 webm_muxer_select="iso_media riffenc"
2449 wtv_demuxer_select="mpegts_demuxer riffdec"
2450 xmv_demuxer_select="riffdec"
2451 xwma_demuxer_select="riffdec"
2452
2453 # indevs / outdevs
2454 alsa_indev_deps="alsa"
2455 alsa_outdev_deps="alsa"
2456 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2457 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2458 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2459 dv1394_indev_deps="dv1394"
2460 dv1394_indev_select="dv_demuxer"
2461 fbdev_indev_deps="linux_fb_h"
2462 jack_indev_deps="libjack"
2463 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2464 libcdio_indev_deps="libcdio"
2465 libdc1394_indev_deps="libdc1394"
2466 oss_indev_deps_any="sys_soundcard_h"
2467 oss_outdev_deps_any="sys_soundcard_h"
2468 pulse_indev_deps="libpulse"
2469 sndio_indev_deps="sndio"
2470 sndio_outdev_deps="sndio"
2471 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2472 vfwcap_indev_deps="vfw32 vfwcap_defines"
2473 xcbgrab_indev_deps="libxcb libxcb_shape"
2474 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2475
2476 # protocols
2477 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2478 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2479 ffrtmpcrypt_protocol_select="tcp_protocol"
2480 ffrtmphttp_protocol_conflict="librtmp_protocol"
2481 ffrtmphttp_protocol_select="http_protocol"
2482 gopher_protocol_select="network"
2483 http_protocol_select="tcp_protocol"
2484 http_protocol_suggest="zlib"
2485 httpproxy_protocol_select="tcp_protocol"
2486 httpproxy_protocol_suggest="zlib"
2487 https_protocol_select="tls_protocol"
2488 https_protocol_suggest="zlib"
2489 icecast_protocol_select="http_protocol"
2490 librtmp_protocol_deps="librtmp"
2491 librtmpe_protocol_deps="librtmp"
2492 librtmps_protocol_deps="librtmp"
2493 librtmpt_protocol_deps="librtmp"
2494 librtmpte_protocol_deps="librtmp"
2495 mmsh_protocol_select="http_protocol"
2496 mmst_protocol_select="network"
2497 rtmp_protocol_conflict="librtmp_protocol"
2498 rtmp_protocol_select="tcp_protocol"
2499 rtmp_protocol_suggest="zlib"
2500 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2501 rtmpe_protocol_suggest="zlib"
2502 rtmps_protocol_conflict="librtmp_protocol"
2503 rtmps_protocol_select="tls_protocol"
2504 rtmps_protocol_suggest="zlib"
2505 rtmpt_protocol_select="ffrtmphttp_protocol"
2506 rtmpt_protocol_suggest="zlib"
2507 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2508 rtmpte_protocol_suggest="zlib"
2509 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2510 rtmpts_protocol_suggest="zlib"
2511 rtp_protocol_select="udp_protocol"
2512 sctp_protocol_deps="struct_sctp_event_subscribe"
2513 sctp_protocol_select="network"
2514 srtp_protocol_select="rtp_protocol srtp"
2515 tcp_protocol_select="network"
2516 tls_protocol_deps_any="gnutls openssl"
2517 tls_protocol_select="tcp_protocol"
2518 udp_protocol_select="network"
2519 unix_protocol_deps="sys_un_h"
2520 unix_protocol_select="network"
2521
2522 # filters
2523 asyncts_filter_deps="avresample"
2524 blackframe_filter_deps="gpl"
2525 boxblur_filter_deps="gpl"
2526 bs2b_filter_deps="libbs2b"
2527 cropdetect_filter_deps="gpl"
2528 deinterlace_qsv_filter_deps="libmfx"
2529 deinterlace_vaapi_filter_deps="vaapi"
2530 delogo_filter_deps="gpl"
2531 drawtext_filter_deps="libfreetype"
2532 drawtext_filter_suggest="libfontconfig"
2533 frei0r_filter_deps="frei0r libdl"
2534 frei0r_src_filter_deps="frei0r libdl"
2535 hdcd_filter_deps="libhdcd"
2536 hqdn3d_filter_deps="gpl"
2537 interlace_filter_deps="gpl"
2538 movie_filter_deps="avcodec avformat"
2539 ocv_filter_deps="libopencv"
2540 overlay_qsv_filter_deps="libmfx"
2541 overlay_qsv_filter_select="qsvvpp"
2542 resample_filter_deps="avresample"
2543 scale_filter_deps="swscale"
2544 scale_qsv_filter_deps="libmfx"
2545 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2546 vpp_qsv_filter_deps="libmfx"
2547 vpp_qsv_filter_select="qsvvpp"
2548
2549 # examples
2550 decode_audio_example_deps="avcodec avutil"
2551 decode_video_example_deps="avcodec avutil"
2552 encode_audio_example_deps="avcodec avutil"
2553 encode_video_example_deps="avcodec avutil"
2554 filter_audio_example_deps="avfilter avutil"
2555 metadata_example_deps="avformat avutil"
2556 output_example_deps="avcodec avformat avresample avutil swscale"
2557 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2558 transcode_aac_example_deps="avcodec avformat avresample"
2559
2560 # EXTRALIBS_LIST
2561 cpu_init_extralibs="pthreads_extralibs"
2562 cws2fws_extralibs="zlib_extralibs"
2563
2564 # libraries, in linking order
2565 avcodec_deps="avutil"
2566 avcodec_select="null_bsf"
2567 avdevice_deps="avformat avcodec avutil"
2568 avfilter_deps="avutil"
2569 avformat_deps="avcodec avutil"
2570 avformat_suggest="network"
2571 avresample_deps="avutil"
2572 swscale_deps="avutil"
2573
2574 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2575 avdevice_extralibs="libm_extralibs"
2576 avformat_extralibs="libm_extralibs"
2577 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2578 avresample_extralibs="libm_extralibs"
2579 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2580 swscale_extralibs="libm_extralibs"
2581
2582 # programs
2583 avconv_deps="avcodec avfilter avformat avresample swscale"
2584 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2585                fps_filter null_filter resample_filter scale_filter
2586                trim_filter"
2587 avconv_suggest="psapi shell32"
2588 avplay_deps="avcodec avfilter avformat avresample sdl"
2589 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2590 avplay_suggest="shell32"
2591 avprobe_deps="avcodec avformat"
2592 avprobe_suggest="shell32"
2593
2594 # documentation
2595 pod2man_deps="doc"
2596 texi2html_deps="doc"
2597
2598 # default parameters
2599
2600 logfile="avbuild/config.log"
2601
2602 # installation paths
2603 prefix_default="/usr/local"
2604 bindir_default='${prefix}/bin'
2605 datadir_default='${prefix}/share/avconv'
2606 docdir_default='${prefix}/share/doc/libav'
2607 incdir_default='${prefix}/include'
2608 libdir_default='${prefix}/lib'
2609 mandir_default='${prefix}/share/man'
2610 shlibdir_default="$libdir_default"
2611
2612 # toolchain
2613 ar_default="ar"
2614 cc_default="gcc"
2615 host_cc_default="gcc"
2616 x86asmexe_default="nasm"
2617 ln_s="ln -s -f"
2618 nm_default="nm -g"
2619 pkg_config_default=pkg-config
2620 ranlib="ranlib"
2621 strip="strip"
2622 version_script='--version-script'
2623
2624 # machine
2625 arch_default=$(uname -m)
2626 cpu="generic"
2627 intrinsics="none"
2628
2629 # OS
2630 target_os_default=$(tolower $(uname -s))
2631 host_os=$target_os_default
2632
2633 # configurable options
2634 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2635
2636 enable asm
2637 enable debug
2638 enable doc
2639 enable faan faandct faanidct
2640 enable optimizations
2641 enable safe_bitstream_reader
2642 enable static
2643 enable swscale_alpha
2644 enable valgrind_backtrace
2645
2646 # By default, enable only those hwaccels that have no external dependencies.
2647 enable d3d11va dxva2 vda vdpau
2648
2649 # internal components are enabled by default
2650 enable $EXTRALIBS_LIST
2651
2652 # Avoid external, non-system, libraries getting enabled by dependency resolution
2653 disable $EXTERNAL_LIBRARY_LIST
2654
2655 # build settings
2656 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2657 LIBPREF="lib"
2658 LIBSUF=".a"
2659 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2660 SLIBPREF="lib"
2661 SLIBSUF=".so"
2662 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2663 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2664 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2665 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2666 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2667 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2668 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2669
2670 asflags_filter=echo
2671 cflags_filter=echo
2672 ldflags_filter=echo
2673
2674 AS_C='-c'
2675 AS_O='-o $@'
2676 CC_C='-c'
2677 CC_E='-E -o $@'
2678 CC_O='-o $@'
2679 OBJCC_C='-c'
2680 OBJCC_E='-E -o $@'
2681 OBJCC_O='-o $@'
2682 X86ASM_O='-o $@'
2683 LD_O='-o $@'
2684 LD_LIB='-l%'
2685 LD_PATH='-L'
2686 HOSTCC_C='-c'
2687 HOSTCC_E='-E -o $@'
2688 HOSTCC_O='-o $@'
2689 HOSTLD_O='-o $@'
2690
2691 host_extralibs='-lm'
2692 host_cflags_filter=echo
2693 host_ldflags_filter=echo
2694
2695 target_path='$(CURDIR)'
2696
2697 # since the object filename is not given with the -MM flag, the compiler
2698 # is only able to print the basename, and we must add the path ourselves
2699 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2700 DEPFLAGS='-MM'
2701
2702 mkdir -p avbuild
2703
2704 # find source path
2705 if test -f configure; then
2706     source_path=.
2707 else
2708     source_path=$(cd $(dirname "$0"); pwd)
2709     echo "$source_path" | grep -q '[[:blank:]]' &&
2710         die "Out of tree builds are impossible with whitespace in source path."
2711     test -e "$source_path/config.h" &&
2712         die "Out of tree builds are impossible with config.h in source dir."
2713 fi
2714
2715 for v in "$@"; do
2716     r=${v#*=}
2717     l=${v%"$r"}
2718     r=$(sh_quote "$r")
2719     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2720 done
2721
2722 find_things(){
2723     thing=$1
2724     pattern=$2
2725     file=$source_path/$3
2726     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2727 }
2728
2729 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2730 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2731 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2732 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2733 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2734 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2735 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2736 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2737 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2738
2739 find_things_extern(){
2740     thing=$1
2741     pattern=$2
2742     file=$source_path/$3
2743     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2744 }
2745
2746 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2747 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2748
2749 AVCODEC_COMPONENTS_LIST="
2750     $BSF_LIST
2751     $DECODER_LIST
2752     $ENCODER_LIST
2753     $HWACCEL_LIST
2754     $PARSER_LIST
2755 "
2756
2757 AVDEVICE_COMPONENTS_LIST="
2758     $INDEV_LIST
2759     $OUTDEV_LIST
2760 "
2761
2762 AVFILTER_COMPONENTS_LIST="
2763     $FILTER_LIST
2764 "
2765
2766 AVFORMAT_COMPONENTS_LIST="
2767     $DEMUXER_LIST
2768     $MUXER_LIST
2769     $PROTOCOL_LIST
2770 "
2771
2772 ALL_COMPONENTS="
2773     $AVCODEC_COMPONENTS_LIST
2774     $AVDEVICE_COMPONENTS_LIST
2775     $AVFILTER_COMPONENTS_LIST
2776     $AVFORMAT_COMPONENTS_LIST
2777 "
2778
2779 for n in $COMPONENT_LIST; do
2780     v=$(toupper ${n%s})_LIST
2781     eval enable \$$v
2782     eval ${n}_if_any="\$$v"
2783 done
2784
2785 enable $ARCH_EXT_LIST
2786
2787 die_unknown(){
2788     echo "Unknown option \"$1\"."
2789     echo "See $0 --help for available options."
2790     exit 1
2791 }
2792
2793 print_3_columns() {
2794     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2795 }
2796
2797 show_list() {
2798     suffix=_$1
2799     shift
2800     echo $* | sed s/$suffix//g | print_3_columns
2801     exit 0
2802 }
2803
2804 rand_list(){
2805     IFS=', '
2806     set -- $*
2807     unset IFS
2808     for thing; do
2809         comp=${thing%:*}
2810         prob=${thing#$comp}
2811         prob=${prob#:}
2812         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2813         echo "prob ${prob:-0.5}"
2814         printf '%s\n' $comp
2815     done
2816 }
2817
2818 do_random(){
2819     action=$1
2820     shift
2821     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2822     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2823 }
2824
2825 for opt do
2826     optval="${opt#*=}"
2827     case "$opt" in
2828         --extra-ldflags=*)
2829             add_ldflags $optval
2830         ;;
2831         --extra-ldexeflags=*)
2832             add_ldexeflags $optval
2833         ;;
2834         --extra-ldsoflags=*)
2835             add_ldsoflags $optval
2836         ;;
2837         --extra-libs=*)
2838             add_extralibs $optval
2839         ;;
2840         --disable-devices)
2841             disable $INDEV_LIST $OUTDEV_LIST
2842         ;;
2843         --enable-debug=*)
2844             debuglevel="$optval"
2845         ;;
2846         --disable-programs)
2847             disable $PROGRAM_LIST
2848         ;;
2849         --disable-everything)
2850             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2851         ;;
2852         --disable-all)
2853             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2854             disable $LIBRARY_LIST $PROGRAM_LIST doc
2855         ;;
2856         --enable-random|--disable-random)
2857             action=${opt%%-random}
2858             do_random ${action#--} $COMPONENT_LIST
2859         ;;
2860         --enable-random=*|--disable-random=*)
2861             action=${opt%%-random=*}
2862             do_random ${action#--} $optval
2863         ;;
2864         --enable-*=*|--disable-*=*)
2865             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2866             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2867             eval list=\$$(toupper $thing)_LIST
2868             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2869             $action $(filter "$name" $list)
2870         ;;
2871         --enable-avserver|--disable-avserver*)
2872             warn "avserver has been removed, the ${opt} option is only"\
2873                  "provided for compatibility and will be removed in the future"
2874         ;;
2875         --enable-yasm|--disable-yasm)
2876             warn "The ${opt} option is only provided for compatibility and will be\n"\
2877                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2878             test $opt = --enable-yasm && x86asm=yes || x86asm=no
2879         ;;
2880         --enable-?*|--disable-?*)
2881             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2882             if is_in $option $COMPONENT_LIST; then
2883                 test $action = disable && action=unset
2884                 eval $action \$$(toupper ${option%s})_LIST
2885             elif is_in $option $CMDLINE_SELECT; then
2886                 $action $option
2887             else
2888                 die_unknown $opt
2889             fi
2890         ;;
2891         --list-*)
2892             NAME="${opt#--list-}"
2893             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2894             NAME=${NAME%s}
2895             eval show_list $NAME \$$(toupper $NAME)_LIST
2896         ;;
2897         --help|-h) show_help
2898         ;;
2899         --quiet|-q) quiet=yes
2900         ;;
2901         *)
2902             optname="${opt%%=*}"
2903             optname="${optname#--}"
2904             optname=$(echo "$optname" | sed 's/-/_/g')
2905             if is_in $optname $CMDLINE_SET; then
2906                 eval $optname='$optval'
2907             elif is_in $optname $CMDLINE_APPEND; then
2908                 append $optname "$optval"
2909             else
2910                 die_unknown $opt
2911             fi
2912         ;;
2913     esac
2914 done
2915
2916 for e in $env; do
2917     eval "export $e"
2918 done
2919
2920 disabled logging && logfile=/dev/null
2921
2922 # Die early if licensing-related configure options are incompatible.
2923 die_license_disabled() {
2924     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2925 }
2926
2927 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2928 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2929 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2930
2931 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2932
2933 enabled_all gnutls openssl &&
2934     die "GnuTLS and OpenSSL must not be enabled at the same time."
2935
2936 # Disable all the library-specific components if the library itself
2937 # is disabled, see AVCODEC_LIST and following _LIST variables.
2938
2939 disable_components(){
2940     disabled ${1} && disable $(
2941         eval components="\$$(toupper ${1})_COMPONENTS"
2942         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2943     )
2944 }
2945
2946 map 'disable_components $v' $LIBRARY_LIST
2947
2948 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2949 set >> $logfile
2950
2951 case "$toolchain" in
2952     *-asan)
2953         cc_default="${toolchain%-asan}"
2954         add_cflags  -fsanitize=address
2955         add_ldflags -fsanitize=address
2956     ;;
2957     *-msan)
2958         cc_default="${toolchain%-msan}"
2959         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2960         add_ldflags -fsanitize=memory
2961     ;;
2962     *-tsan)
2963         cc_default="${toolchain%-tsan}"
2964         add_cflags  -fsanitize=thread -fPIE
2965         add_ldflags -fsanitize=thread -pie
2966         case "$toolchain" in
2967             gcc-tsan)
2968                 add_cflags  -fPIC
2969                 add_ldflags -fPIC
2970                 ;;
2971         esac
2972     ;;
2973     *-usan)
2974         cc_default="${toolchain%-usan}"
2975         add_cflags  -fsanitize=undefined
2976         add_ldflags -fsanitize=undefined
2977         case "$toolchain" in
2978             clang-usan)
2979                 add_cflags -O1
2980                 ;;
2981         esac
2982     ;;
2983     valgrind-*)
2984         target_exec_default="valgrind"
2985         case "$toolchain" in
2986             valgrind-massif)
2987                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2988                 ;;
2989             valgrind-memcheck)
2990                 target_exec_args="--track-origins=yes --leak-check=full"
2991                 ;;
2992         esac
2993     ;;
2994     msvc)
2995         # Check whether the current MSVC version needs the C99 converter.
2996         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2997         # support enough of C99 to build libav. Default to the new
2998         # behaviour if the regexp was unable to match anything, since this
2999         # successfully parses the version number of existing supported
3000         # versions that require the converter (MSVC 2010 and 2012).
3001         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3002         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3003             cc_default="cl"
3004         else
3005             cc_default="c99wrap cl"
3006         fi
3007         ld_default="$source_path/compat/windows/mslink"
3008         nm_default="dumpbin -symbols"
3009         ar_default="lib"
3010         case "$arch" in
3011         arm*)
3012             as_default="armasm"
3013             ;;
3014         esac
3015         target_os_default="win32"
3016         # Use a relative path for TMPDIR. This makes sure all the
3017         # ffconf temp files are written with a relative path, avoiding
3018         # issues with msys/win32 path conversion for MSVC parameters
3019         # such as -Fo<file> or -out:<file>.
3020         TMPDIR=.
3021     ;;
3022     icl)
3023         cc_default="icl"
3024         ld_default="xilink"
3025         nm_default="dumpbin -symbols"
3026         ar_default="xilib"
3027         target_os_default="win32"
3028         TMPDIR=.
3029     ;;
3030     gcov)
3031         add_cflags  -fprofile-arcs -ftest-coverage
3032         add_ldflags -fprofile-arcs -ftest-coverage
3033     ;;
3034     llvm-cov)
3035         add_cflags -fprofile-arcs -ftest-coverage
3036         add_ldflags --coverage
3037     ;;
3038     hardened)
3039         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3040         add_cflags   -fno-strict-overflow -fstack-protector-all
3041         add_ldflags  -Wl,-z,relro -Wl,-z,now
3042     ;;
3043     ?*)
3044         die "Unknown toolchain $toolchain"
3045     ;;
3046 esac
3047
3048 test -n "$cross_prefix" && enable cross_compile
3049
3050 if enabled cross_compile; then
3051     test -n "$arch" && test -n "$target_os" ||
3052         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3053 fi
3054
3055 ar_default="${cross_prefix}${ar_default}"
3056 cc_default="${cross_prefix}${cc_default}"
3057 objcc_default="${cross_prefix}${objcc_default}"
3058 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3059 nm_default="${cross_prefix}${nm_default}"
3060 pkg_config_default="${cross_prefix}${pkg_config_default}"
3061 ranlib="${cross_prefix}${ranlib}"
3062 strip="${cross_prefix}${strip}"
3063
3064 sysinclude_default="${sysroot}/usr/include"
3065
3066 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3067 enabled cross_compile || host_cc_default=$cc
3068 set_default host_cc
3069
3070 if ! $pkg_config --version >/dev/null 2>&1; then
3071     warn "$pkg_config not found, library detection may fail."
3072     pkg_config=false
3073 fi
3074
3075 exesuf() {
3076     case $1 in
3077         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3078     esac
3079 }
3080
3081 EXESUF=$(exesuf $target_os)
3082 HOSTEXESUF=$(exesuf $host_os)
3083
3084 # set temporary file name
3085 : ${TMPDIR:=$TEMPDIR}
3086 : ${TMPDIR:=$TMP}
3087 : ${TMPDIR:=/tmp}
3088
3089 if ! check_cmd mktemp -u XXXXXX; then
3090     # simple replacement for missing mktemp
3091     # NOT SAFE FOR GENERAL USE
3092     mktemp(){
3093         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3094         echo "$tmpname"
3095         mkdir "$tmpname"
3096     }
3097 fi
3098
3099 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3100     die "Unable to create temporary directory in $TMPDIR."
3101
3102 tmpfile(){
3103     tmp="${AVTMPDIR}/test"$2
3104     (set -C; exec > $tmp) 2> /dev/null ||
3105         die "Unable to create temporary file in $AVTMPDIR."
3106     eval $1=$tmp
3107 }
3108
3109 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3110 trap 'exit 2' INT
3111
3112 tmpfile TMPASM .asm
3113 tmpfile TMPC   .c
3114 tmpfile TMPE   $EXESUF
3115 tmpfile TMPH   .h
3116 tmpfile TMPO   .o
3117 tmpfile TMPS   .S
3118 tmpfile TMPSH  .sh
3119 tmpfile TMPV   .ver
3120
3121 unset -f mktemp
3122
3123 chmod +x $TMPE
3124
3125 # make sure we can execute files in $TMPDIR
3126 cat > $TMPSH 2>> $logfile <<EOF
3127 #! /bin/sh
3128 EOF
3129 chmod +x $TMPSH >> $logfile 2>&1
3130 if ! $TMPSH >> $logfile 2>&1; then
3131     cat <<EOF
3132 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3133 variable to another directory and make sure that it is not mounted noexec.
3134 EOF
3135     die "Sanity test failed."
3136 fi
3137
3138 armasm_flags(){
3139     for flag; do
3140         case $flag in
3141             # Filter out MSVC cl.exe options from cflags that shouldn't
3142             # be passed to gas-preprocessor
3143             -M[TD]*)                                            ;;
3144             *)                  echo $flag                      ;;
3145         esac
3146    done
3147 }
3148
3149 cparser_flags(){
3150     for flag; do
3151         case $flag in
3152             -Wno-switch)             echo -Wno-switch-enum ;;
3153             -Wno-format-zero-length) ;;
3154             -Wdisabled-optimization) ;;
3155             -Wno-pointer-sign)       echo -Wno-other ;;
3156             *)                       echo $flag ;;
3157         esac
3158     done
3159 }
3160
3161 msvc_common_flags(){
3162     for flag; do
3163         case $flag in
3164             # In addition to specifying certain flags under the compiler
3165             # specific filters, they must be specified here as well or else the
3166             # generic catch all at the bottom will print the original flag.
3167             -Wall)                ;;
3168             -Wextra)              ;;
3169             -std=c99)             ;;
3170             # Common flags
3171             -fomit-frame-pointer) ;;
3172             -g)                   echo -Z7 ;;
3173             -fno-math-errno)      ;;
3174             -fno-common)          ;;
3175             -fno-signed-zeros)    ;;
3176             -fPIC)                ;;
3177             -mthumb)              ;;
3178             -march=*)             ;;
3179             -lz)                  echo zlib.lib ;;
3180             -lx264)               echo libx264.lib ;;
3181             -l*)                  echo ${flag#-l}.lib ;;
3182             -L*)                  echo -libpath:${flag#-L} ;;
3183             *)                    echo $flag ;;
3184         esac
3185     done
3186 }
3187
3188 msvc_flags(){
3189     msvc_common_flags "$@"
3190     for flag; do
3191         case $flag in
3192             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3193                                        -wd4554 ;;
3194             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3195                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3196                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3197                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3198         esac
3199     done
3200 }
3201
3202 icl_flags(){
3203     msvc_common_flags "$@"
3204     for flag; do
3205         case $flag in
3206             # Despite what Intel's documentation says -Wall, which is supported
3207             # on Windows, does enable remarks so disable them here.
3208             -Wall)                echo $flag -Qdiag-disable:remark ;;
3209             -std=c99)             echo -Qstd=c99 ;;
3210         esac
3211     done
3212 }
3213
3214 pgi_flags(){
3215     for flag; do
3216         case $flag in
3217             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3218             -fomit-frame-pointer) echo -Mnoframe ;;
3219             -g)                   echo -gopt ;;
3220             *)                    echo $flag ;;
3221         esac
3222     done
3223 }
3224
3225 suncc_flags(){
3226     for flag; do
3227         case $flag in
3228             -march=*|-mcpu=*)
3229                 case "${flag#*=}" in
3230                     native)                   echo -xtarget=native       ;;
3231                     v9|niagara)               echo -xarch=sparc          ;;
3232                     ultrasparc)               echo -xarch=sparcvis       ;;
3233                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3234                     i586|pentium)             echo -xchip=pentium        ;;
3235                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3236                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3237                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3238                     pentium4*)          echo -xtarget=pentium4           ;;
3239                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3240                     *-sse3)             echo -xarch=sse3                 ;;
3241                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3242                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3243                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3244                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3245                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3246                     k8|opteron|athlon64|athlon-fx)
3247                                                echo -xarch=sse2a         ;;
3248                     athlon*)                   echo -xarch=pentium_proa  ;;
3249                 esac
3250                 ;;
3251             -std=c99)             echo -xc99              ;;
3252             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3253             -fPIC)                echo -KPIC -xcode=pic32 ;;
3254             -W*,*)                echo $flag              ;;
3255             -f*-*|-W*|-mimpure-text)                      ;;
3256             -shared)              echo -G                 ;;
3257             *)                    echo $flag              ;;
3258         esac
3259     done
3260 }
3261
3262 tms470_flags(){
3263     for flag; do
3264         case $flag in
3265             -march=*|-mcpu=*)
3266                 case "${flag#*=}" in
3267                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3268                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3269                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3270                     armv6*|arm11*)          echo -mv=6   ;;
3271                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3272                                             echo -mv=5e  ;;
3273                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3274                 esac
3275                 ;;
3276             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3277             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3278             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3279             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3280             -msoft-float)   echo --float_support=vfplib       ;;
3281             -O[0-3]|-mf=*)  echo $flag                        ;;
3282             -g)             echo -g -mn                       ;;
3283             -pds=*)         echo $flag                        ;;
3284             -D*|-I*)        echo $flag                        ;;
3285             --gcc|--abi=*)  echo $flag                        ;;
3286             -me)            echo $flag                        ;;
3287         esac
3288     done
3289 }
3290
3291 probe_cc(){
3292     pfx=$1
3293     _cc=$2
3294
3295     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3296     unset _ld_o _ldflags _ld_lib _ld_path
3297     unset _depflags _DEPCMD _DEPFLAGS
3298     _flags_filter=echo
3299
3300     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3301         _type=llvm_gcc
3302         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3303         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3304         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3305         _cflags_speed='-O3'
3306         _cflags_size='-Os'
3307     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3308         _type=gcc
3309         gcc_version=$($_cc --version | head -n1)
3310         gcc_basever=$($_cc -dumpversion)
3311         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3312         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3313         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3314         if ! $_cc -dumpversion | grep -q '^2\.'; then
3315             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3316         fi
3317         _cflags_speed='-O3'
3318         _cflags_size='-Os'
3319     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3320         _type=icc
3321         _ident=$($_cc --version | head -n1)
3322         _depflags='-MMD'
3323         _cflags_speed='-O3'
3324         _cflags_size='-Os'
3325         _cflags_noopt='-O1'
3326     elif $_cc -v 2>&1 | grep -q xlc; then
3327         _type=xlc
3328         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3329         _cflags_speed='-O5'
3330         _cflags_size='-O5 -qcompact'
3331     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3332         test -d "$sysroot" || die "No valid sysroot specified."
3333         _type=armcc
3334         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3335         armcc_conf="$PWD/armcc.conf"
3336         $_cc --arm_linux_configure                 \
3337              --arm_linux_config_file="$armcc_conf" \
3338              --configure_sysroot="$sysroot"        \
3339              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3340              die "Error creating armcc configuration file."
3341         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3342         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3343         as_default="${cross_prefix}gcc"
3344         _depflags='-MMD'
3345         _cflags_speed='-O3'
3346         _cflags_size='-Os'
3347     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3348         _type=tms470
3349         _ident=$($_cc -version | head -n1 | tr -s ' ')
3350         _flags='--gcc --abi=eabi -me'
3351         _cc_e='-ppl -fe=$@'
3352         _cc_o='-fe=$@'
3353         _depflags='-ppa -ppd=$(@:.o=.d)'
3354         _cflags_speed='-O3 -mf=5'
3355         _cflags_size='-O3 -mf=2'
3356         _flags_filter=tms470_flags
3357     elif $_cc -v 2>&1 | grep -q clang; then
3358         _type=clang
3359         _ident=$($_cc --version 2>/dev/null | head -n1)
3360         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3361         _cflags_speed='-O3'
3362         _cflags_size='-Os'
3363     elif $_cc -V 2>&1 | grep -q Sun; then
3364         _type=suncc
3365         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3366         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3367         _DEPFLAGS='-xM1 -xc99'
3368         _ldflags='-std=c99'
3369         _cflags_speed='-O5'
3370         _cflags_size='-O5 -xspace'
3371         _flags_filter=suncc_flags
3372     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3373         _type=pathscale
3374         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3375         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3376         _cflags_speed='-O2'
3377         _cflags_size='-Os'
3378         _flags_filter='filter_out -Wdisabled-optimization'
3379     elif $_cc -v 2>&1 | grep -q Open64; then
3380         _type=open64
3381         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3382         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3383         _cflags_speed='-O2'
3384         _cflags_size='-Os'
3385         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3386     elif $_cc -V 2>&1 | grep -q Portland; then
3387         _type=pgi
3388         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3389         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3390         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3391         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3392         _cflags_noopt="-O1"
3393         _flags_filter=pgi_flags
3394     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3395         _type=armasm
3396         _ident=$($_cc | head -n1)
3397         # 4509: "This form of conditional instruction is deprecated"
3398         _flags="-nologo -ignore 4509"
3399         _flags_filter=armasm_flags
3400     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3401         _type=msvc
3402         _ident=$($_cc 2>&1 | head -n1)
3403         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3404         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3405         _cflags_speed="-O2"
3406         _cflags_size="-O1"
3407         _cflags_noopt="-O1"
3408         if $_cc -nologo- 2>&1 | grep -q Linker; then
3409             _ld_o='-out:$@'
3410         else
3411             _ld_o='-Fe$@'
3412         fi
3413         _cc_o='-Fo$@'
3414         _cc_e='-P -Fi$@'
3415         _flags_filter=msvc_flags
3416         _ld_lib='lib%.a'
3417         _ld_path='-libpath:'
3418         _flags='-nologo'
3419     elif $_cc 2>&1 | grep -q Intel; then
3420         _type=icl
3421         _ident=$($_cc 2>&1 | head -n1)
3422         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3423         # Not only is O3 broken on 13.x+ but it is slower on all previous
3424         # versions (tested) as well.
3425         _cflags_speed="-O2"
3426         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3427         if $_cc 2>&1 | grep -q Linker; then
3428             _ld_o='-out:$@'
3429         else
3430             _ld_o='-Fe$@'
3431         fi
3432         _cc_o='-Fo$@'
3433         _cc_e='-P'
3434         _flags_filter=icl_flags
3435         _ld_lib='lib%.a'
3436         _ld_path='-libpath:'
3437         # -Qdiag-error to make icl error when seeing certain unknown arguments
3438         _flags='-nologo -Qdiag-error:4044,10157'
3439         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3440         # with MSVC which enables it by default.
3441         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3442     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3443         # lld can emulate multiple different linkers; in ms link.exe mode,
3444         # the -? parameter gives the help output which contains an identifyable
3445         # string, while it gives an error in other modes.
3446         _type=lld-link
3447         # The link.exe mode doesn't have a switch for getting the version,
3448         # but we can force it back to gnu mode and get the version from there.
3449         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3450         _ld_o='-out:$@'
3451         _flags_filter=msvc_flags
3452         _ld_lib='lib%.a'
3453         _ld_path='-libpath:'
3454     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3455         _type=cparser
3456         _ident=$($_cc --version | head -n1)
3457         _depflags='-MMD'
3458         _cflags_speed='-O4'
3459         _cflags_size='-O2'
3460         _flags_filter=cparser_flags
3461     fi
3462
3463     eval ${pfx}_type=\$_type
3464     eval ${pfx}_ident=\$_ident
3465 }
3466
3467 set_ccvars(){
3468     eval ${1}_C=\${_cc_c-\${${1}_C}}
3469     eval ${1}_E=\${_cc_e-\${${1}_E}}
3470     eval ${1}_O=\${_cc_o-\${${1}_O}}
3471
3472     if [ -n "$_depflags" ]; then
3473         eval ${1}_DEPFLAGS=\$_depflags
3474     else
3475         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3476         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3477         eval DEP${1}FLAGS=\$_flags
3478     fi
3479 }
3480
3481 probe_cc cc "$cc"
3482 cflags_filter=$_flags_filter
3483 cflags_speed=$_cflags_speed
3484 cflags_size=$_cflags_size
3485 cflags_noopt=$_cflags_noopt
3486 add_cflags $_flags $_cflags
3487 cc_ldflags=$_ldflags
3488 set_ccvars CC
3489
3490 probe_cc hostcc "$host_cc"
3491 host_cflags_filter=$_flags_filter
3492 host_cflags_speed=$_cflags_speed
3493 add_host_cflags  $_flags $_cflags
3494 set_ccvars HOSTCC
3495
3496 test -n "$cc_type" && enable $cc_type ||
3497     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3498
3499 : ${as_default:=$cc}
3500 : ${objcc_default:=$cc}
3501 : ${dep_cc_default:=$cc}
3502 : ${ld_default:=$cc}
3503 : ${host_ld_default:=$host_cc}
3504 set_default ar as objcc dep_cc ld host_ld
3505
3506 probe_cc as "$as"
3507 asflags_filter=$_flags_filter
3508 add_asflags $_flags $_cflags
3509 set_ccvars AS
3510
3511 probe_cc objcc "$objcc"
3512 objcflags_filter=$_flags_filter
3513 add_objcflags $_flags $_cflags
3514 set_ccvars OBJC
3515
3516 probe_cc ld "$ld"
3517 ldflags_filter=$_flags_filter
3518 add_ldflags $_flags $_ldflags
3519 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3520 LD_O=${_ld_o-$LD_O}
3521 LD_LIB=${_ld_lib-$LD_LIB}
3522 LD_PATH=${_ld_path-$LD_PATH}
3523
3524 probe_cc hostld "$host_ld"
3525 host_ldflags_filter=$_flags_filter
3526 add_host_ldflags $_flags $_ldflags
3527 HOSTLD_O=${_ld_o-$HOSTLD_O}
3528
3529 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3530     probe_cc depcc "$dep_cc"
3531     CCDEP=${_DEPCMD:-$DEPCMD}
3532     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3533     DEPCCFLAGS=$_flags
3534 fi
3535
3536 if $ar 2>&1 | grep -q Microsoft; then
3537     arflags="-nologo"
3538     ar_o='-out:$@'
3539 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3540     arflags="rq"
3541     ar_o='$@'
3542 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3543     arflags='-Xany -r -c'
3544     ar_o='$@'
3545 else
3546     arflags="rc"
3547     ar_o='$@'
3548 fi
3549
3550 add_cflags $extra_cflags
3551 add_objcflags $extra_objcflags
3552 add_asflags $extra_cflags
3553
3554 if test -n "$sysroot"; then
3555     case "$cc_type" in
3556         gcc|llvm_gcc|clang)
3557             add_cppflags --sysroot="$sysroot"
3558             add_ldflags --sysroot="$sysroot"
3559         ;;
3560         tms470)
3561             add_cppflags -I"$sysinclude"
3562             add_ldflags  --sysroot="$sysroot"
3563         ;;
3564     esac
3565 fi
3566
3567 if test "$cpu" = host; then
3568     enabled cross_compile &&
3569         die "--cpu=host makes no sense when cross-compiling."
3570
3571     case "$cc_type" in
3572         gcc|llvm_gcc)
3573             check_native(){
3574                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3575                 sed -n "/cc1.*$1=/{
3576                             s/.*$1=\\([^ ]*\\).*/\\1/
3577                             p
3578                             q
3579                         }" $TMPE
3580             }
3581             cpu=$(check_native -march || check_native -mcpu)
3582         ;;
3583     esac
3584
3585     test "${cpu:-host}" = host &&
3586         die "--cpu=host not supported with compiler $cc"
3587 fi
3588
3589 # Deal with common $arch aliases
3590 case "$arch" in
3591     aarch64|arm64)
3592         arch="aarch64"
3593     ;;
3594     arm*)
3595         arch="arm"
3596     ;;
3597     mips*|IP*)
3598         case "$arch" in
3599         *el)
3600             add_cppflags -EL
3601             add_ldflags -EL
3602         ;;
3603         *eb)
3604             add_cppflags -EB
3605             add_ldflags -EB
3606         ;;
3607         esac
3608         arch="mips"
3609     ;;
3610     parisc*|hppa*)
3611         arch="parisc"
3612     ;;
3613     "Power Macintosh"|ppc*|powerpc*)
3614         arch="ppc"
3615     ;;
3616     s390|s390x)
3617         arch="s390"
3618     ;;
3619     sh4|sh)
3620         arch="sh4"
3621     ;;
3622     sun4u|sparc*)
3623         arch="sparc"
3624     ;;
3625     tilegx|tile-gx)
3626         arch="tilegx"
3627     ;;
3628     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3629         arch="x86"
3630     ;;
3631 esac
3632
3633 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3634 enable $arch
3635
3636 # Add processor-specific flags
3637 if enabled aarch64; then
3638
3639     case $cpu in
3640         armv*)
3641             cpuflags="-march=$cpu"
3642         ;;
3643         *)
3644             cpuflags="-mcpu=$cpu"
3645         ;;
3646     esac
3647
3648 elif enabled alpha; then
3649
3650     cpuflags="-mcpu=$cpu"
3651
3652 elif enabled arm; then
3653
3654     check_arm_arch() {
3655         check_cpp_condition stddef.h \
3656             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3657             $cpuflags
3658     }
3659
3660     probe_arm_arch() {
3661         if   check_arm_arch 4;        then echo armv4
3662         elif check_arm_arch 4T;       then echo armv4t
3663         elif check_arm_arch 5;        then echo armv5
3664         elif check_arm_arch 5E;       then echo armv5e
3665         elif check_arm_arch 5T;       then echo armv5t
3666         elif check_arm_arch 5TE;      then echo armv5te
3667         elif check_arm_arch 5TEJ;     then echo armv5te
3668         elif check_arm_arch 6;        then echo armv6
3669         elif check_arm_arch 6J;       then echo armv6j
3670         elif check_arm_arch 6K;       then echo armv6k
3671         elif check_arm_arch 6Z;       then echo armv6z
3672         elif check_arm_arch 6ZK;      then echo armv6zk
3673         elif check_arm_arch 6T2;      then echo armv6t2
3674         elif check_arm_arch 7;        then echo armv7
3675         elif check_arm_arch 7A  7_A;  then echo armv7-a
3676         elif check_arm_arch 7S;       then echo armv7-a
3677         elif check_arm_arch 7R  7_R;  then echo armv7-r
3678         elif check_arm_arch 7M  7_M;  then echo armv7-m
3679         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3680         elif check_arm_arch 8A  8_A;  then echo armv8-a
3681         fi
3682     }
3683
3684     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3685
3686     case $cpu in
3687         armv*)
3688             cpuflags="-march=$cpu"
3689             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3690         ;;
3691         *)
3692             cpuflags="-mcpu=$cpu"
3693             case $cpu in
3694                 cortex-a*)                               subarch=armv7a  ;;
3695                 cortex-r*)                               subarch=armv7r  ;;
3696                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3697                 arm11*)                                  subarch=armv6   ;;
3698                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3699                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3700                 *)                             subarch=$(probe_arm_arch) ;;
3701             esac
3702         ;;
3703     esac
3704
3705     case "$subarch" in
3706         armv5t*)    enable fast_clz                ;;
3707         armv[6-8]*) enable fast_clz fast_unaligned ;;
3708     esac
3709
3710 elif enabled avr32; then
3711
3712     case $cpu in
3713         ap7[02]0[0-2])
3714             subarch="avr32_ap"
3715             cpuflags="-mpart=$cpu"
3716         ;;
3717         ap)
3718             subarch="avr32_ap"
3719             cpuflags="-march=$cpu"
3720         ;;
3721         uc3[ab]*)
3722             subarch="avr32_uc"
3723             cpuflags="-mcpu=$cpu"
3724         ;;
3725         uc)
3726             subarch="avr32_uc"
3727             cpuflags="-march=$cpu"
3728         ;;
3729     esac
3730
3731 elif enabled bfin; then
3732
3733     cpuflags="-mcpu=$cpu"
3734
3735 elif enabled mips; then
3736
3737     cpuflags="-march=$cpu"
3738
3739 elif enabled ppc; then
3740
3741     disable ldbrx
3742
3743     case $(tolower $cpu) in
3744         601|ppc601|powerpc601)
3745             cpuflags="-mcpu=601"
3746             disable altivec
3747         ;;
3748         603*|ppc603*|powerpc603*)
3749             cpuflags="-mcpu=603"
3750             disable altivec
3751         ;;
3752         604*|ppc604*|powerpc604*)
3753             cpuflags="-mcpu=604"
3754             disable altivec
3755         ;;
3756         g3|75*|ppc75*|powerpc75*)
3757             cpuflags="-mcpu=750"
3758             disable altivec
3759         ;;
3760         g4|745*|ppc745*|powerpc745*)
3761             cpuflags="-mcpu=7450"
3762             disable vsx
3763         ;;
3764         74*|ppc74*|powerpc74*)
3765             cpuflags="-mcpu=7400"
3766             disable vsx
3767         ;;
3768         g5|970|ppc970|powerpc970)
3769             cpuflags="-mcpu=970"
3770             disable vsx
3771         ;;
3772         power[3-6]*)
3773             cpuflags="-mcpu=$cpu"
3774             disable vsx
3775         ;;
3776         power[7-8]*)
3777             cpuflags="-mcpu=$cpu"
3778             enable ldbrx
3779         ;;
3780         cell)
3781             cpuflags="-mcpu=cell"
3782             enable ldbrx
3783             disable vsx
3784         ;;
3785         e500mc)
3786             cpuflags="-mcpu=e500mc"
3787             disable altivec
3788         ;;
3789         e500v2)
3790             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3791             disable altivec
3792             disable dcbzl
3793         ;;
3794         e500)
3795             cpuflags="-mcpu=8540 -mhard-float"
3796             disable altivec
3797             disable dcbzl
3798         ;;
3799     esac
3800
3801 elif enabled sparc; then
3802
3803     case $cpu in
3804         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3805             cpuflags="-mcpu=$cpu"
3806         ;;
3807         ultrasparc*|niagara[234])
3808             cpuflags="-mcpu=$cpu"
3809         ;;
3810     esac
3811
3812 elif enabled x86; then
3813
3814     case $cpu in
3815         i[345]86|pentium)
3816             cpuflags="-march=$cpu"
3817             disable i686
3818             disable mmx
3819         ;;
3820         # targets that do NOT support nopl and conditional mov (cmov)
3821         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3822             cpuflags="-march=$cpu"
3823             disable i686
3824         ;;
3825         # targets that do support nopl and conditional mov (cmov)
3826         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3827             cpuflags="-march=$cpu"
3828             enable i686
3829             enable fast_cmov
3830         ;;
3831         # targets that do support conditional mov but on which it's slow
3832         pentium4|pentium4m|prescott|nocona)
3833             cpuflags="-march=$cpu"
3834             enable i686
3835             disable fast_cmov
3836         ;;
3837     esac
3838
3839 fi
3840
3841 if [ "$cpu" != generic ]; then
3842     add_cflags  $cpuflags
3843     add_asflags $cpuflags
3844     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3845 fi
3846
3847 # compiler sanity check
3848 check_exec <<EOF
3849 int main(void){ return 0; }
3850 EOF
3851 if test "$?" != 0; then
3852     echo "$cc is unable to create an executable file."
3853     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3854         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3855         echo "Only do this if you know what cross compiling means."
3856     fi
3857     die "C compiler test failed."
3858 fi
3859
3860 add_cppflags -D_ISOC99_SOURCE
3861
3862 # some compilers silently accept -std=c11, so we also need to check that the
3863 # version macro is defined properly
3864 check_cpp_condition stdlib.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
3865     add_cflags -std=c11 ||
3866     check_cflags -std=c99
3867
3868 check_cppflags -D_FILE_OFFSET_BITS=64
3869 check_cppflags -D_LARGEFILE_SOURCE
3870
3871 add_host_cppflags -D_ISOC99_SOURCE
3872 check_host_cflags -std=c99
3873 check_host_cflags -Wall
3874 check_host_cflags $host_cflags_speed
3875
3876 check_64bit(){
3877     arch32=$1
3878     arch64=$2
3879     expr=$3
3880     check_code cc "" "int test[2*($expr) - 1]" &&
3881         subarch=$arch64 || subarch=$arch32
3882 }
3883
3884 case "$arch" in
3885     aarch64|alpha|ia64)
3886         spic=$shared
3887     ;;
3888     mips)
3889         check_64bit mips mips64 '_MIPS_SIM > 1'
3890         spic=$shared
3891     ;;
3892     parisc)
3893         check_64bit parisc parisc64 'sizeof(void *) > 4'
3894         spic=$shared
3895     ;;
3896     ppc)
3897         check_64bit ppc ppc64 'sizeof(void *) > 4'
3898         spic=$shared
3899     ;;
3900     s390)
3901         check_64bit s390 s390x 'sizeof(void *) > 4'
3902         spic=$shared
3903     ;;
3904     sparc)
3905         check_64bit sparc sparc64 'sizeof(void *) > 4'
3906         spic=$shared
3907     ;;
3908     x86)
3909         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3910         if test "$subarch" = "x86_64"; then
3911             spic=$shared
3912         fi
3913     ;;
3914 esac
3915
3916 enable $subarch
3917 enabled spic && enable_weak pic
3918
3919 enabled x86_64 && objformat=elf64 || objformat="elf32"
3920
3921 # OS specific
3922 case $target_os in
3923     aix)
3924         SHFLAGS=-shared
3925         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3926         enabled shared && add_ldflags -Wl,-brtl
3927         ;;
3928     android)
3929         disable symver
3930         enable section_data_rel_ro
3931         SLIB_INSTALL_NAME='$(SLIBNAME)'
3932         SLIB_INSTALL_LINKS=
3933         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3934         ;;
3935     haiku)
3936         prefix_default="/boot/common"
3937         network_extralibs="-lnetwork"
3938         host_extralibs=
3939         ;;
3940     sunos)
3941         SHFLAGS='-shared -Wl,-h,$$(@F)'
3942         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3943         network_extralibs="-lsocket -lnsl"
3944         # When using suncc to build, the Solaris linker will mark
3945         # an executable with each instruction set encountered by
3946         # the Solaris assembler.  As our libraries contain their own
3947         # guards for processor-specific code, instead suppress
3948         # generation of the HWCAPS ELF section on Solaris x86 only.
3949         enabled_all suncc x86 &&
3950             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3951             add_ldflags -Wl,-M,mapfile
3952         nm_default='nm -P -g'
3953         version_script='-M'
3954         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3955         ;;
3956     netbsd)
3957         disable symver
3958         oss_indev_extralibs="-lossaudio"
3959         oss_outdev_extralibs="-lossaudio"
3960         ;;
3961     openbsd|bitrig)
3962         disable symver
3963         SHFLAGS='-shared'
3964         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3965         SLIB_INSTALL_LINKS=
3966         oss_indev_extralibs="-lossaudio"
3967         oss_outdev_extralibs="-lossaudio"
3968         ;;
3969     dragonfly)
3970         disable symver
3971         ;;
3972     freebsd)
3973         ;;
3974     bsd/os)
3975         add_extralibs -lpoll -lgnugetopt
3976         ;;
3977     darwin)
3978         enabled ppc && add_asflags -force_cpusubtype_ALL
3979         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3980         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3981         add_ldflags -Wl,-dynamic,-search_paths_first
3982         check_cflags -Werror=partial-availability
3983         SLIBSUF=".dylib"
3984         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3985         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3986         enabled x86_64 && objformat="macho64" || objformat="macho32"
3987         enabled_any pic shared ||
3988             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3989         check_header dispatch/dispatch.h &&
3990             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3991         if test -n "$sysroot"; then
3992             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3993             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
3994         fi
3995         ;;
3996     msys*)
3997         die "Native MSYS builds are discouraged, please use the MINGW environment."
3998         ;;
3999     mingw32*|mingw64*)
4000         target_os=mingw32
4001         LIBTARGET=i386
4002         if enabled x86_64; then
4003             LIBTARGET="i386:x86-64"
4004         fi
4005         if enabled shared; then
4006             # Cannot build both shared and static libs when using dllexport.
4007             disable static
4008         fi
4009         check_ldflags -Wl,--nxcompat
4010         check_ldflags -Wl,--dynamicbase
4011         shlibdir_default="$bindir_default"
4012         SLIBPREF=""
4013         SLIBSUF=".dll"
4014         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4015         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4016         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4017         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4018         SLIB_INSTALL_LINKS=
4019         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4020         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4021         SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4022         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
4023         enabled x86_64 && objformat="win64" || objformat="win32"
4024         dlltool="${cross_prefix}dlltool"
4025         ranlib=:
4026         enable dos_paths
4027         ;;
4028     win32|win64)
4029         disable symver
4030         if enabled shared; then
4031             # Link to the import library instead of the normal static library
4032             # for shared libs.
4033             LD_LIB='%.lib'
4034             # Cannot build both shared and static libs with MSVC or icl.
4035             disable static
4036         fi
4037         shlibdir_default="$bindir_default"
4038         SLIBPREF=""
4039         SLIBSUF=".dll"
4040         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4041         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4042         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4043         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4044         SLIB_INSTALL_LINKS=
4045         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4046         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4047         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4048         enabled x86_64 && objformat="win64" || objformat="win32"
4049         ranlib=:
4050         enable dos_paths
4051         ;;
4052     cygwin*)
4053         target_os=cygwin
4054         shlibdir_default="$bindir_default"
4055         SLIBPREF="cyg"
4056         SLIBSUF=".dll"
4057         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4058         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4059         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4060         SLIB_INSTALL_LINKS=
4061         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4062         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4063         enabled x86_64 && objformat="win64" || objformat="win32"
4064         enable dos_paths
4065         ;;
4066     *-dos|freedos|opendos)
4067         network_extralibs="-lsocket"
4068         objformat="coff"
4069         enable dos_paths
4070         add_cppflags -U__STRICT_ANSI__
4071         ;;
4072     linux)
4073         enable dv1394
4074         enable section_data_rel_ro
4075         ;;
4076     irix*)
4077         target_os=irix
4078         ranlib="echo ignoring ranlib"
4079         ;;
4080     os/2*)
4081         ln_s="cp -f"
4082         objformat="aout"
4083         add_cppflags -D_GNU_SOURCE
4084         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4085         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4086         LIBSUF="_s.a"
4087         SLIBPREF=""
4088         SLIBSUF=".dll"
4089         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4090         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4091         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4092             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4093             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4094         &nb