]> granicus.if.org Git - libvpx/blob - configure
Merge "encode_test_driver: test for failure prior to encode"
[libvpx] / configure
1 #!/bin/sh
2 ##
3 ##  configure
4 ##
5 ##  This script is the front-end to the build system. It provides a similar
6 ##  interface to standard configure scripts with some extra bits for dealing
7 ##  with toolchains that differ from the standard POSIX interface and
8 ##  for extracting subsets of the source tree. In theory, reusable parts
9 ##  of this script were intended to live in build/make/configure.sh,
10 ##  but in practice, the line is pretty blurry.
11 ##
12 ##  This build system is based in part on the FFmpeg configure script.
13 ##
14
15 #source_path="`dirname \"$0\"`"
16 source_path=${0%/*}
17 . "${source_path}/build/make/configure.sh"
18
19 show_help(){
20     show_help_pre
21     cat << EOF
22 Advanced options:
23   ${toggle_libs}                  libraries
24   ${toggle_examples}              examples
25   ${toggle_docs}                  documentation
26   ${toggle_unit_tests}            unit tests
27   ${toggle_decode_perf_tests}     build decoder perf tests with unit tests
28   ${toggle_encode_perf_tests}     build encoder perf tests with unit tests
29   --cpu=CPU                       tune for the specified CPU (ARM: cortex-a8, X86: sse3)
30   --libc=PATH                     path to alternate libc
31   --size-limit=WxH                max size to allow in the decoder
32   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
33   --sdk-path=PATH                 path to root of sdk (android builds only)
34   ${toggle_codec_srcs}            in/exclude codec library source code
35   ${toggle_debug_libs}            in/exclude debug version of libraries
36   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
37   ${toggle_vp9_highbitdepth}      use VP9 high bit depth (10/12) profiles
38   ${toggle_vp8}                   VP8 codec support
39   ${toggle_vp9}                   VP9 codec support
40   ${toggle_vp10}                  VP10 codec support
41   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
42   ${toggle_postproc}              postprocessing
43   ${toggle_vp9_postproc}          vp9 specific postprocessing
44   ${toggle_multithread}           multithreaded encoding and decoding
45   ${toggle_spatial_resampling}    spatial sampling (scaling) support
46   ${toggle_realtime_only}         enable this option while building for real-time encoding
47   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
48   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
49   ${toggle_coefficient_range_checking}
50                                   enable decoder to check if intermediate
51                                   transform coefficients are in valid range
52   ${toggle_runtime_cpu_detect}    runtime cpu detection
53   ${toggle_shared}                shared library support
54   ${toggle_static}                static library support
55   ${toggle_small}                 favor smaller size over speed
56   ${toggle_postproc_visualizer}   macro block / block level visualizers
57   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
58   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
59   ${toggle_vp9_temporal_denoising}
60                                   enable vp9 temporal denoising
61   ${toggle_webm_io}               enable input from and output to WebM container
62   ${toggle_libyuv}                enable libyuv
63
64 Codecs:
65   Codecs can be selectively enabled or disabled individually, or by family:
66       --disable-<codec>
67   is equivalent to:
68       --disable-<codec>-encoder
69       --disable-<codec>-decoder
70
71   Codecs available in this distribution:
72 EOF
73 #restore editor state '
74
75     family="";
76     last_family="";
77     c="";
78     str="";
79     for c in ${CODECS}; do
80         family=${c%_*}
81         if [ "${family}" != "${last_family}" ]; then
82             [ -z "${str}" ] || echo "${str}"
83             str="$(printf '    %10s:' ${family})"
84         fi
85         str="${str} $(printf '%10s' ${c#*_})"
86         last_family=${family}
87     done
88     echo "${str}"
89     show_help_post
90 }
91
92 ##
93 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
94 ##
95
96 # all_platforms is a list of all supported target platforms. Maintain
97 # alphabetically by architecture, generic-gnu last.
98 all_platforms="${all_platforms} armv6-darwin-gcc"
99 all_platforms="${all_platforms} armv6-linux-rvct"
100 all_platforms="${all_platforms} armv6-linux-gcc"
101 all_platforms="${all_platforms} armv6-none-rvct"
102 all_platforms="${all_platforms} arm64-darwin-gcc"
103 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
104 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
105 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
106 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
107 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
108 all_platforms="${all_platforms} armv7-win32-vs11"
109 all_platforms="${all_platforms} armv7-win32-vs12"
110 all_platforms="${all_platforms} armv7-win32-vs14"
111 all_platforms="${all_platforms} armv7s-darwin-gcc"
112 all_platforms="${all_platforms} mips32-linux-gcc"
113 all_platforms="${all_platforms} mips64-linux-gcc"
114 all_platforms="${all_platforms} sparc-solaris-gcc"
115 all_platforms="${all_platforms} x86-android-gcc"
116 all_platforms="${all_platforms} x86-darwin8-gcc"
117 all_platforms="${all_platforms} x86-darwin8-icc"
118 all_platforms="${all_platforms} x86-darwin9-gcc"
119 all_platforms="${all_platforms} x86-darwin9-icc"
120 all_platforms="${all_platforms} x86-darwin10-gcc"
121 all_platforms="${all_platforms} x86-darwin11-gcc"
122 all_platforms="${all_platforms} x86-darwin12-gcc"
123 all_platforms="${all_platforms} x86-darwin13-gcc"
124 all_platforms="${all_platforms} x86-darwin14-gcc"
125 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
126 all_platforms="${all_platforms} x86-linux-gcc"
127 all_platforms="${all_platforms} x86-linux-icc"
128 all_platforms="${all_platforms} x86-os2-gcc"
129 all_platforms="${all_platforms} x86-solaris-gcc"
130 all_platforms="${all_platforms} x86-win32-gcc"
131 all_platforms="${all_platforms} x86-win32-vs7"
132 all_platforms="${all_platforms} x86-win32-vs8"
133 all_platforms="${all_platforms} x86-win32-vs9"
134 all_platforms="${all_platforms} x86-win32-vs10"
135 all_platforms="${all_platforms} x86-win32-vs11"
136 all_platforms="${all_platforms} x86-win32-vs12"
137 all_platforms="${all_platforms} x86-win32-vs14"
138 all_platforms="${all_platforms} x86_64-android-gcc"
139 all_platforms="${all_platforms} x86_64-darwin9-gcc"
140 all_platforms="${all_platforms} x86_64-darwin10-gcc"
141 all_platforms="${all_platforms} x86_64-darwin11-gcc"
142 all_platforms="${all_platforms} x86_64-darwin12-gcc"
143 all_platforms="${all_platforms} x86_64-darwin13-gcc"
144 all_platforms="${all_platforms} x86_64-darwin14-gcc"
145 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
146 all_platforms="${all_platforms} x86_64-linux-gcc"
147 all_platforms="${all_platforms} x86_64-linux-icc"
148 all_platforms="${all_platforms} x86_64-solaris-gcc"
149 all_platforms="${all_platforms} x86_64-win64-gcc"
150 all_platforms="${all_platforms} x86_64-win64-vs8"
151 all_platforms="${all_platforms} x86_64-win64-vs9"
152 all_platforms="${all_platforms} x86_64-win64-vs10"
153 all_platforms="${all_platforms} x86_64-win64-vs11"
154 all_platforms="${all_platforms} x86_64-win64-vs12"
155 all_platforms="${all_platforms} x86_64-win64-vs14"
156 all_platforms="${all_platforms} generic-gnu"
157
158 # all_targets is a list of all targets that can be configured
159 # note that these should be in dependency order for now.
160 all_targets="libs examples docs"
161
162 # all targets available are enabled, by default.
163 for t in ${all_targets}; do
164     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
165 done
166
167 if ! perl --version >/dev/null; then
168     die "Perl is required to build"
169 fi
170
171
172 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
173   # test to see if source_path already configured
174   if [ -f "${source_path}/vpx_config.h" ]; then
175     die "source directory already configured; run 'make distclean' there first"
176   fi
177 fi
178
179 # check installed doxygen version
180 doxy_version=$(doxygen --version 2>/dev/null)
181 doxy_major=${doxy_version%%.*}
182 if [ ${doxy_major:-0} -ge 1 ]; then
183     doxy_version=${doxy_version#*.}
184     doxy_minor=${doxy_version%%.*}
185     doxy_patch=${doxy_version##*.}
186
187     [ $doxy_major -gt 1 ] && enable_feature doxygen
188     [ $doxy_minor -gt 5 ] && enable_feature doxygen
189     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
190 fi
191
192 # disable codecs when their source directory does not exist
193 [ -d "${source_path}/vp8" ] || disable_feature vp8
194 [ -d "${source_path}/vp9" ] || disable_feature vp9
195 [ -d "${source_path}/vp10" ] || disable_feature vp10
196
197 # disable vp10 codec by default
198 disable_feature vp10
199
200 # install everything except the sources, by default. sources will have
201 # to be enabled when doing dist builds, since that's no longer a common
202 # case.
203 enabled doxygen && enable_feature install_docs
204 enable_feature install_bins
205 enable_feature install_libs
206
207 enable_feature static
208 enable_feature optimizations
209 enable_feature dependency_tracking
210 enable_feature spatial_resampling
211 enable_feature multithread
212 enable_feature os_support
213 enable_feature temporal_denoising
214
215 CODECS="
216     vp8_encoder
217     vp8_decoder
218     vp9_encoder
219     vp9_decoder
220     vp10_encoder
221     vp10_decoder
222 "
223 CODEC_FAMILIES="
224     vp8
225     vp9
226     vp10
227 "
228
229 ARCH_LIST="
230     arm
231     mips
232     x86
233     x86_64
234 "
235 ARCH_EXT_LIST="
236     edsp
237     media
238     neon
239     neon_asm
240
241     mips32
242     dspr2
243     msa
244     mips64
245
246     mmx
247     sse
248     sse2
249     sse3
250     ssse3
251     sse4_1
252     avx
253     avx2
254 "
255 HAVE_LIST="
256     ${ARCH_EXT_LIST}
257     vpx_ports
258     stdint_h
259     pthread_h
260     sys_mman_h
261     unistd_h
262 "
263 EXPERIMENT_LIST="
264     spatial_svc
265     fp_mb_stats
266     emulate_hardware
267 "
268 CONFIG_LIST="
269     dependency_tracking
270     external_build
271     install_docs
272     install_bins
273     install_libs
274     install_srcs
275     use_x86inc
276     debug
277     gprof
278     gcov
279     rvct
280     gcc
281     msvs
282     pic
283     big_endian
284
285     codec_srcs
286     debug_libs
287
288     dequant_tokens
289     dc_recon
290     runtime_cpu_detect
291     postproc
292     vp9_postproc
293     multithread
294     internal_stats
295     ${CODECS}
296     ${CODEC_FAMILIES}
297     encoders
298     decoders
299     static_msvcrt
300     spatial_resampling
301     realtime_only
302     onthefly_bitpacking
303     error_concealment
304     shared
305     static
306     small
307     postproc_visualizer
308     os_support
309     unit_tests
310     webm_io
311     libyuv
312     decode_perf_tests
313     encode_perf_tests
314     multi_res_encoding
315     temporal_denoising
316     vp9_temporal_denoising
317     coefficient_range_checking
318     vp9_highbitdepth
319     experimental
320     size_limit
321     ${EXPERIMENT_LIST}
322 "
323 CMDLINE_SELECT="
324     dependency_tracking
325     external_build
326     extra_warnings
327     werror
328     install_docs
329     install_bins
330     install_libs
331     install_srcs
332     debug
333     gprof
334     gcov
335     pic
336     use_x86inc
337     optimizations
338     ccache
339     runtime_cpu_detect
340     thumb
341
342     libs
343     examples
344     docs
345     libc
346     as
347     size_limit
348     codec_srcs
349     debug_libs
350
351     dequant_tokens
352     dc_recon
353     postproc
354     vp9_postproc
355     multithread
356     internal_stats
357     ${CODECS}
358     ${CODEC_FAMILIES}
359     static_msvcrt
360     spatial_resampling
361     realtime_only
362     onthefly_bitpacking
363     error_concealment
364     shared
365     static
366     small
367     postproc_visualizer
368     unit_tests
369     webm_io
370     libyuv
371     decode_perf_tests
372     encode_perf_tests
373     multi_res_encoding
374     temporal_denoising
375     vp9_temporal_denoising
376     coefficient_range_checking
377     vp9_highbitdepth
378     experimental
379 "
380
381 process_cmdline() {
382     for opt do
383         optval="${opt#*=}"
384         case "$opt" in
385         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
386         --enable-?*|--disable-?*)
387         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
388         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
389             if enabled experimental; then
390                 ${action}_feature $option
391             else
392                 log_echo "Ignoring $opt -- not in experimental mode."
393             fi
394         else
395             process_common_cmdline $opt
396         fi
397         ;;
398         *) process_common_cmdline "$opt"
399         ;;
400         esac
401     done
402 }
403
404 post_process_cmdline() {
405     c=""
406
407     # If the codec family is disabled, disable all components of that family.
408     # If the codec family is enabled, enable all components of that family.
409     log_echo "Configuring selected codecs"
410     for c in ${CODECS}; do
411         disabled ${c%%_*} && disable_feature ${c}
412         enabled ${c%%_*} && enable_feature ${c}
413     done
414
415     # Enable all detected codecs, if they haven't been disabled
416     for c in ${CODECS}; do soft_enable $c; done
417
418     # Enable the codec family if any component of that family is enabled
419     for c in ${CODECS}; do
420         enabled $c && enable_feature ${c%_*}
421     done
422
423     # Set the {en,de}coders variable if any algorithm in that class is enabled
424     for c in ${CODECS}; do
425         enabled ${c} && enable_feature ${c##*_}s
426     done
427 }
428
429
430 process_targets() {
431     enabled child || write_common_config_banner
432     write_common_target_config_h ${BUILD_PFX}vpx_config.h
433     write_common_config_targets
434
435     # Calculate the default distribution name, based on the enabled features
436     cf=""
437     DIST_DIR=vpx
438     for cf in $CODEC_FAMILIES; do
439         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
440             DIST_DIR="${DIST_DIR}-${cf}"
441         elif enabled ${cf}_encoder; then
442             DIST_DIR="${DIST_DIR}-${cf}cx"
443         elif enabled ${cf}_decoder; then
444             DIST_DIR="${DIST_DIR}-${cf}dx"
445         fi
446     done
447     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
448     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
449     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
450     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
451     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
452     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
453     case "${tgt_os}" in
454     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
455           DIST_DIR="${DIST_DIR}-${tgt_cc}"
456           ;;
457     esac
458     if [ -f "${source_path}/build/make/version.sh" ]; then
459         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
460         DIST_DIR="${DIST_DIR}-${ver}"
461         VERSION_STRING=${ver}
462         ver=${ver%%-*}
463         VERSION_PATCH=${ver##*.}
464         ver=${ver%.*}
465         VERSION_MINOR=${ver##*.}
466         ver=${ver#v}
467         VERSION_MAJOR=${ver%.*}
468     fi
469     enabled child || cat <<EOF >> config.mk
470
471 PREFIX=${prefix}
472 ifeq (\$(MAKECMDGOALS),dist)
473 DIST_DIR?=${DIST_DIR}
474 else
475 DIST_DIR?=\$(DESTDIR)${prefix}
476 endif
477 LIBSUBDIR=${libdir##${prefix}/}
478
479 VERSION_STRING=${VERSION_STRING}
480
481 VERSION_MAJOR=${VERSION_MAJOR}
482 VERSION_MINOR=${VERSION_MINOR}
483 VERSION_PATCH=${VERSION_PATCH}
484
485 CONFIGURE_ARGS=${CONFIGURE_ARGS}
486 EOF
487     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
488
489     #
490     # Write makefiles for all enabled targets
491     #
492     for tgt in libs examples docs solution; do
493         tgt_fn="$tgt-$toolchain.mk"
494
495         if enabled $tgt; then
496             echo "Creating makefiles for ${toolchain} ${tgt}"
497             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
498             #write_${tgt}_config
499         fi
500     done
501
502 }
503
504 process_detect() {
505     if enabled shared; then
506         # Can only build shared libs on a subset of platforms. Doing this check
507         # here rather than at option parse time because the target auto-detect
508         # magic happens after the command line has been parsed.
509         if ! enabled linux && ! enabled os2; then
510             if enabled gnu; then
511                 echo "--enable-shared is only supported on ELF; assuming this is OK"
512             else
513                 die "--enable-shared only supported on ELF and OS/2 for now"
514             fi
515         fi
516     fi
517     if [ -z "$CC" ] || enabled external_build; then
518         echo "Bypassing toolchain for environment detection."
519         enable_feature external_build
520         check_header() {
521             log fake_check_header "$@"
522             header=$1
523             shift
524             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
525             disable_feature $var
526             # Headers common to all environments
527             case $header in
528                 stdio.h)
529                     true;
530                 ;;
531                 *)
532                     result=false
533                     for d in "$@"; do
534                         [ -f "${d##-I}/$header" ] && result=true && break
535                     done
536                     ${result:-true}
537             esac && enable_feature $var
538
539             # Specialize windows and POSIX environments.
540             case $toolchain in
541                 *-win*-*)
542                     case $header-$toolchain in
543                         stdint*-gcc) true;;
544                         *) false;;
545                     esac && enable_feature $var
546                     ;;
547                 *)
548                     case $header in
549                         stdint.h) true;;
550                         pthread.h) true;;
551                         sys/mman.h) true;;
552                         unistd.h) true;;
553                         *) false;;
554                     esac && enable_feature $var
555             esac
556             enabled $var
557         }
558         check_ld() {
559             true
560         }
561     fi
562     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
563     check_ld <<EOF || die "Toolchain is unable to link executables"
564 int main(void) {return 0;}
565 EOF
566     # check system headers
567     check_header stdint.h
568     check_header pthread.h
569     check_header sys/mman.h
570     check_header unistd.h # for sysconf(3) and friends.
571
572     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
573 }
574
575 process_toolchain() {
576     process_common_toolchain
577
578     # Enable some useful compiler flags
579     if enabled gcc; then
580         enabled werror && check_add_cflags -Werror
581         check_add_cflags -Wall
582         check_add_cflags -Wdeclaration-after-statement
583         check_add_cflags -Wdisabled-optimization
584         check_add_cflags -Wpointer-arith
585         check_add_cflags -Wtype-limits
586         check_add_cflags -Wcast-qual
587         check_add_cflags -Wvla
588         check_add_cflags -Wimplicit-function-declaration
589         check_add_cflags -Wuninitialized
590         check_add_cflags -Wunused-variable
591         case ${CC} in
592           *clang*)
593               # libvpx and/or clang have issues with aliasing:
594               # https://code.google.com/p/webm/issues/detail?id=603
595               # work around them until they are fixed
596               check_add_cflags -fno-strict-aliasing
597           ;;
598           *) check_add_cflags -Wunused-but-set-variable ;;
599         esac
600         enabled extra_warnings || check_add_cflags -Wno-unused-function
601     fi
602
603     if enabled icc; then
604         enabled werror && check_add_cflags -Werror
605         check_add_cflags -Wall
606         check_add_cflags -Wpointer-arith
607
608         # ICC has a number of floating point optimizations that we disable
609         # in favor of deterministic output WRT to other compilers
610         add_cflags -fp-model precise
611     fi
612
613     # Enable extra, harmless warnings. These might provide additional insight
614     # to what the compiler is doing and why, but in general, but they shouldn't
615     # be treated as fatal, even if we're treating warnings as errors.
616     GCC_EXTRA_WARNINGS="
617         -Wdisabled-optimization
618         -Winline
619     "
620     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
621     RVCT_EXTRA_WARNINGS="
622         --remarks
623     "
624     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
625     if enabled extra_warnings; then
626         for w in ${EXTRA_WARNINGS}; do
627             check_add_cflags ${w}
628             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
629         done
630     fi
631
632     # ccache only really works on gcc toolchains
633     enabled gcc || soft_disable ccache
634     if enabled mips; then
635         enable_feature dequant_tokens
636         enable_feature dc_recon
637     fi
638
639     if enabled internal_stats; then
640         enable_feature vp9_postproc
641     fi
642
643     # Enable the postbuild target if building for visual studio.
644     case "$tgt_cc" in
645         vs*) enable_feature msvs
646              enable_feature solution
647              vs_version=${tgt_cc##vs}
648              case $vs_version in
649              [789])
650                  VCPROJ_SFX=vcproj
651                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
652                  ;;
653              10|11|12|14)
654                  VCPROJ_SFX=vcxproj
655                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
656                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
657                  ;;
658              esac
659              all_targets="${all_targets} solution"
660              INLINE="__forceinline"
661         ;;
662     esac
663
664     # Other toolchain specific defaults
665     case $toolchain in x86*) soft_enable postproc;; esac
666
667     if enabled postproc_visualizer; then
668         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
669     fi
670
671     # Enable unit tests by default if we have a working C++ compiler.
672     case "$toolchain" in
673         *-vs*)
674             soft_enable unit_tests
675             soft_enable webm_io
676             soft_enable libyuv
677         ;;
678         *-android-*)
679             soft_enable webm_io
680             soft_enable libyuv
681             # GTestLog must be modified to use Android logging utilities.
682         ;;
683         *-darwin-*)
684             # iOS/ARM builds do not work with gtest. This does not match
685             # x86 targets.
686         ;;
687         *-iphonesimulator-*)
688             soft_enable webm_io
689             soft_enable libyuv
690         ;;
691         *-win*)
692             # Some mingw toolchains don't have pthread available by default.
693             # Treat these more like visual studio where threading in gtest
694             # would be disabled for the same reason.
695             check_cxx "$@" <<EOF && soft_enable unit_tests
696 int z;
697 EOF
698             check_cxx "$@" <<EOF && soft_enable webm_io
699 int z;
700 EOF
701             check_cxx "$@" <<EOF && soft_enable libyuv
702 int z;
703 EOF
704         ;;
705         *)
706             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
707 int z;
708 EOF
709             check_cxx "$@" <<EOF && soft_enable webm_io
710 int z;
711 EOF
712             check_cxx "$@" <<EOF && soft_enable libyuv
713 int z;
714 EOF
715         ;;
716     esac
717     # libwebm needs to be linked with C++ standard library
718     enabled webm_io && LD=${CXX}
719
720     # append any user defined extra cflags
721     if [ -n "${extra_cflags}" ] ; then
722         check_add_cflags ${extra_cflags} || \
723         die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
724     fi
725 }
726
727
728 ##
729 ## END APPLICATION SPECIFIC CONFIGURATION
730 ##
731 CONFIGURE_ARGS="$@"
732 process "$@"
733 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
734 cat <<EOF >> ${BUILD_PFX}vpx_config.c
735 #include "vpx/vpx_codec.h"
736 static const char* const cfg = "$CONFIGURE_ARGS";
737 const char *vpx_codec_build_config(void) {return cfg;}
738 EOF