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="${all_platforms} x86-darwin15-gcc"
 126 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 127 all_platforms="${all_platforms} x86-linux-gcc"
 128 all_platforms="${all_platforms} x86-linux-icc"
 129 all_platforms="${all_platforms} x86-os2-gcc"
 130 all_platforms="${all_platforms} x86-solaris-gcc"
 131 all_platforms="${all_platforms} x86-win32-gcc"
 132 all_platforms="${all_platforms} x86-win32-vs7"
 133 all_platforms="${all_platforms} x86-win32-vs8"
 134 all_platforms="${all_platforms} x86-win32-vs9"
 135 all_platforms="${all_platforms} x86-win32-vs10"
 136 all_platforms="${all_platforms} x86-win32-vs11"
 137 all_platforms="${all_platforms} x86-win32-vs12"
 138 all_platforms="${all_platforms} x86-win32-vs14"
 139 all_platforms="${all_platforms} x86_64-android-gcc"
 140 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 141 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 142 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 143 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 144 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 145 all_platforms="${all_platforms} x86_64-darwin14-gcc"
 146 all_platforms="${all_platforms} x86_64-darwin15-gcc"
 147 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 148 all_platforms="${all_platforms} x86_64-linux-gcc"
 149 all_platforms="${all_platforms} x86_64-linux-icc"
 150 all_platforms="${all_platforms} x86_64-solaris-gcc"
 151 all_platforms="${all_platforms} x86_64-win64-gcc"
 152 all_platforms="${all_platforms} x86_64-win64-vs8"
 153 all_platforms="${all_platforms} x86_64-win64-vs9"
 154 all_platforms="${all_platforms} x86_64-win64-vs10"
 155 all_platforms="${all_platforms} x86_64-win64-vs11"
 156 all_platforms="${all_platforms} x86_64-win64-vs12"
 157 all_platforms="${all_platforms} x86_64-win64-vs14"
 158 all_platforms="${all_platforms} generic-gnu"
 159
 160 # all_targets is a list of all targets that can be configured
 161 # note that these should be in dependency order for now.
 162 all_targets="libs examples docs"
 163
 164 # all targets available are enabled, by default.
 165 for t in ${all_targets}; do
 166     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
 167 done
 168
 169 if ! perl --version >/dev/null; then
 170     die "Perl is required to build"
 171 fi
 172
 173
 174 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 175   # test to see if source_path already configured
 176   if [ -f "${source_path}/vpx_config.h" ]; then
 177     die "source directory already configured; run 'make distclean' there first"
 178   fi
 179 fi
 180
 181 # check installed doxygen version
 182 doxy_version=$(doxygen --version 2>/dev/null)
 183 doxy_major=${doxy_version%%.*}
 184 if [ ${doxy_major:-0} -ge 1 ]; then
 185     doxy_version=${doxy_version#*.}
 186     doxy_minor=${doxy_version%%.*}
 187     doxy_patch=${doxy_version##*.}
 188
 189     [ $doxy_major -gt 1 ] && enable_feature doxygen
 190     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 191     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 192 fi
 193
 194 # disable codecs when their source directory does not exist
 195 [ -d "${source_path}/vp8" ] || disable_feature vp8
 196 [ -d "${source_path}/vp9" ] || disable_feature vp9
 197 [ -d "${source_path}/vp10" ] || disable_feature vp10
 198
 199 # disable vp10 codec by default
 200 disable_feature vp10
 201
 202 # install everything except the sources, by default. sources will have
 203 # to be enabled when doing dist builds, since that's no longer a common
 204 # case.
 205 enabled doxygen && enable_feature install_docs
 206 enable_feature install_bins
 207 enable_feature install_libs
 208
 209 enable_feature static
 210 enable_feature optimizations
 211 enable_feature dependency_tracking
 212 enable_feature spatial_resampling
 213 enable_feature multithread
 214 enable_feature os_support
 215 enable_feature temporal_denoising
 216
 217 CODECS="
 218     vp8_encoder
 219     vp8_decoder
 220     vp9_encoder
 221     vp9_decoder
 222     vp10_encoder
 223     vp10_decoder
 224 "
 225 CODEC_FAMILIES="
 226     vp8
 227     vp9
 228     vp10
 229 "
 230
 231 ARCH_LIST="
 232     arm
 233     mips
 234     x86
 235     x86_64
 236 "
 237 ARCH_EXT_LIST_X86="
 238     mmx
 239     sse
 240     sse2
 241     sse3
 242     ssse3
 243     sse4_1
 244     avx
 245     avx2
 246 "
 247 ARCH_EXT_LIST="
 248     edsp
 249     media
 250     neon
 251     neon_asm
 252
 253     mips32
 254     dspr2
 255     msa
 256     mips64
 257
 258     ${ARCH_EXT_LIST_X86}
 259 "
 260 HAVE_LIST="
 261     ${ARCH_EXT_LIST}
 262     vpx_ports
 263     stdint_h
 264     pthread_h
 265     sys_mman_h
 266     unistd_h
 267 "
 268 EXPERIMENT_LIST="
 269     spatial_svc
 270     fp_mb_stats
 271     emulate_hardware
 272     misc_fixes
 273 "
 274 CONFIG_LIST="
 275     dependency_tracking
 276     external_build
 277     install_docs
 278     install_bins
 279     install_libs
 280     install_srcs
 281     use_x86inc
 282     debug
 283     gprof
 284     gcov
 285     rvct
 286     gcc
 287     msvs
 288     pic
 289     big_endian
 290
 291     codec_srcs
 292     debug_libs
 293
 294     dequant_tokens
 295     dc_recon
 296     runtime_cpu_detect
 297     postproc
 298     vp9_postproc
 299     multithread
 300     internal_stats
 301     ${CODECS}
 302     ${CODEC_FAMILIES}
 303     encoders
 304     decoders
 305     static_msvcrt
 306     spatial_resampling
 307     realtime_only
 308     onthefly_bitpacking
 309     error_concealment
 310     shared
 311     static
 312     small
 313     postproc_visualizer
 314     os_support
 315     unit_tests
 316     webm_io
 317     libyuv
 318     decode_perf_tests
 319     encode_perf_tests
 320     multi_res_encoding
 321     temporal_denoising
 322     vp9_temporal_denoising
 323     coefficient_range_checking
 324     vp9_highbitdepth
 325     experimental
 326     size_limit
 327     ${EXPERIMENT_LIST}
 328 "
 329 CMDLINE_SELECT="
 330     dependency_tracking
 331     external_build
 332     extra_warnings
 333     werror
 334     install_docs
 335     install_bins
 336     install_libs
 337     install_srcs
 338     debug
 339     gprof
 340     gcov
 341     pic
 342     use_x86inc
 343     optimizations
 344     ccache
 345     runtime_cpu_detect
 346     thumb
 347
 348     libs
 349     examples
 350     docs
 351     libc
 352     as
 353     size_limit
 354     codec_srcs
 355     debug_libs
 356
 357     dequant_tokens
 358     dc_recon
 359     postproc
 360     vp9_postproc
 361     multithread
 362     internal_stats
 363     ${CODECS}
 364     ${CODEC_FAMILIES}
 365     static_msvcrt
 366     spatial_resampling
 367     realtime_only
 368     onthefly_bitpacking
 369     error_concealment
 370     shared
 371     static
 372     small
 373     postproc_visualizer
 374     unit_tests
 375     webm_io
 376     libyuv
 377     decode_perf_tests
 378     encode_perf_tests
 379     multi_res_encoding
 380     temporal_denoising
 381     vp9_temporal_denoising
 382     coefficient_range_checking
 383     vp9_highbitdepth
 384     experimental
 385 "
 386
 387 process_cmdline() {
 388     for opt do
 389         optval="${opt#*=}"
 390         case "$opt" in
 391         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
 392         --enable-?*|--disable-?*)
 393         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 394         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 395             if enabled experimental; then
 396                 ${action}_feature $option
 397             else
 398                 log_echo "Ignoring $opt -- not in experimental mode."
 399             fi
 400         else
 401             process_common_cmdline $opt
 402         fi
 403         ;;
 404         *) process_common_cmdline "$opt"
 405         ;;
 406         esac
 407     done
 408 }
 409
 410 post_process_cmdline() {
 411     c=""
 412
 413     # If the codec family is disabled, disable all components of that family.
 414     # If the codec family is enabled, enable all components of that family.
 415     log_echo "Configuring selected codecs"
 416     for c in ${CODECS}; do
 417         disabled ${c%%_*} && disable_feature ${c}
 418         enabled ${c%%_*} && enable_feature ${c}
 419     done
 420
 421     # Enable all detected codecs, if they haven't been disabled
 422     for c in ${CODECS}; do soft_enable $c; done
 423
 424     # Enable the codec family if any component of that family is enabled
 425     for c in ${CODECS}; do
 426         enabled $c && enable_feature ${c%_*}
 427     done
 428
 429     # Set the {en,de}coders variable if any algorithm in that class is enabled
 430     for c in ${CODECS}; do
 431         enabled ${c} && enable_feature ${c##*_}s
 432     done
 433 }
 434
 435
 436 process_targets() {
 437     enabled child || write_common_config_banner
 438     write_common_target_config_h ${BUILD_PFX}vpx_config.h
 439     write_common_config_targets
 440
 441     # Calculate the default distribution name, based on the enabled features
 442     cf=""
 443     DIST_DIR=vpx
 444     for cf in $CODEC_FAMILIES; do
 445         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 446             DIST_DIR="${DIST_DIR}-${cf}"
 447         elif enabled ${cf}_encoder; then
 448             DIST_DIR="${DIST_DIR}-${cf}cx"
 449         elif enabled ${cf}_decoder; then
 450             DIST_DIR="${DIST_DIR}-${cf}dx"
 451         fi
 452     done
 453     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 454     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 455     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 456     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 457     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 458     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 459     case "${tgt_os}" in
 460     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 461           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 462           ;;
 463     esac
 464     if [ -f "${source_path}/build/make/version.sh" ]; then
 465         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 466         DIST_DIR="${DIST_DIR}-${ver}"
 467         VERSION_STRING=${ver}
 468         ver=${ver%%-*}
 469         VERSION_PATCH=${ver##*.}
 470         ver=${ver%.*}
 471         VERSION_MINOR=${ver##*.}
 472         ver=${ver#v}
 473         VERSION_MAJOR=${ver%.*}
 474     fi
 475     enabled child || cat <<EOF >> config.mk
 476
 477 PREFIX=${prefix}
 478 ifeq (\$(MAKECMDGOALS),dist)
 479 DIST_DIR?=${DIST_DIR}
 480 else
 481 DIST_DIR?=\$(DESTDIR)${prefix}
 482 endif
 483 LIBSUBDIR=${libdir##${prefix}/}
 484
 485 VERSION_STRING=${VERSION_STRING}
 486
 487 VERSION_MAJOR=${VERSION_MAJOR}
 488 VERSION_MINOR=${VERSION_MINOR}
 489 VERSION_PATCH=${VERSION_PATCH}
 490
 491 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 492 EOF
 493     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 494
 495     #
 496     # Write makefiles for all enabled targets
 497     #
 498     for tgt in libs examples docs solution; do
 499         tgt_fn="$tgt-$toolchain.mk"
 500
 501         if enabled $tgt; then
 502             echo "Creating makefiles for ${toolchain} ${tgt}"
 503             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 504             #write_${tgt}_config
 505         fi
 506     done
 507
 508 }
 509
 510 process_detect() {
 511     if enabled shared; then
 512         # Can only build shared libs on a subset of platforms. Doing this check
 513         # here rather than at option parse time because the target auto-detect
 514         # magic happens after the command line has been parsed.
 515         if ! enabled linux && ! enabled os2; then
 516             if enabled gnu; then
 517                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 518             else
 519                 die "--enable-shared only supported on ELF and OS/2 for now"
 520             fi
 521         fi
 522     fi
 523     if [ -z "$CC" ] || enabled external_build; then
 524         echo "Bypassing toolchain for environment detection."
 525         enable_feature external_build
 526         check_header() {
 527             log fake_check_header "$@"
 528             header=$1
 529             shift
 530             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 531             disable_feature $var
 532             # Headers common to all environments
 533             case $header in
 534                 stdio.h)
 535                     true;
 536                 ;;
 537                 *)
 538                     result=false
 539                     for d in "$@"; do
 540                         [ -f "${d##-I}/$header" ] && result=true && break
 541                     done
 542                     ${result:-true}
 543             esac && enable_feature $var
 544
 545             # Specialize windows and POSIX environments.
 546             case $toolchain in
 547                 *-win*-*)
 548                     case $header-$toolchain in
 549                         stdint*-gcc) true;;
 550                         *) false;;
 551                     esac && enable_feature $var
 552                     ;;
 553                 *)
 554                     case $header in
 555                         stdint.h) true;;
 556                         pthread.h) true;;
 557                         sys/mman.h) true;;
 558                         unistd.h) true;;
 559                         *) false;;
 560                     esac && enable_feature $var
 561             esac
 562             enabled $var
 563         }
 564         check_ld() {
 565             true
 566         }
 567     fi
 568     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 569     check_ld <<EOF || die "Toolchain is unable to link executables"
 570 int main(void) {return 0;}
 571 EOF
 572     # check system headers
 573     check_header stdint.h
 574     check_header pthread.h
 575     check_header sys/mman.h
 576     check_header unistd.h # for sysconf(3) and friends.
 577
 578     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 579 }
 580
 581 process_toolchain() {
 582     process_common_toolchain
 583
 584     # Enable some useful compiler flags
 585     if enabled gcc; then
 586         enabled werror && check_add_cflags -Werror
 587         check_add_cflags -Wall
 588         check_add_cflags -Wdeclaration-after-statement
 589         check_add_cflags -Wdisabled-optimization
 590         check_add_cflags -Wpointer-arith
 591         check_add_cflags -Wtype-limits
 592         check_add_cflags -Wcast-qual
 593         check_add_cflags -Wvla
 594         check_add_cflags -Wimplicit-function-declaration
 595         check_add_cflags -Wuninitialized
 596         check_add_cflags -Wunused-variable
 597         case ${CC} in
 598           *clang*)
 599               # libvpx and/or clang have issues with aliasing:
 600               # https://code.google.com/p/webm/issues/detail?id=603
 601               # work around them until they are fixed
 602               check_add_cflags -fno-strict-aliasing
 603           ;;
 604           *) check_add_cflags -Wunused-but-set-variable ;;
 605         esac
 606         enabled extra_warnings || check_add_cflags -Wno-unused-function
 607     fi
 608
 609     if enabled icc; then
 610         enabled werror && check_add_cflags -Werror
 611         check_add_cflags -Wall
 612         check_add_cflags -Wpointer-arith
 613
 614         # ICC has a number of floating point optimizations that we disable
 615         # in favor of deterministic output WRT to other compilers
 616         add_cflags -fp-model precise
 617     fi
 618
 619     # Enable extra, harmless warnings. These might provide additional insight
 620     # to what the compiler is doing and why, but in general, but they shouldn't
 621     # be treated as fatal, even if we're treating warnings as errors.
 622     GCC_EXTRA_WARNINGS="
 623         -Wdisabled-optimization
 624         -Winline
 625     "
 626     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 627     RVCT_EXTRA_WARNINGS="
 628         --remarks
 629     "
 630     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 631     if enabled extra_warnings; then
 632         for w in ${EXTRA_WARNINGS}; do
 633             check_add_cflags ${w}
 634             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 635         done
 636     fi
 637
 638     # ccache only really works on gcc toolchains
 639     enabled gcc || soft_disable ccache
 640     if enabled mips; then
 641         enable_feature dequant_tokens
 642         enable_feature dc_recon
 643     fi
 644
 645     if enabled internal_stats; then
 646         enable_feature vp9_postproc
 647     fi
 648
 649     # Enable the postbuild target if building for visual studio.
 650     case "$tgt_cc" in
 651         vs*) enable_feature msvs
 652              enable_feature solution
 653              vs_version=${tgt_cc##vs}
 654              case $vs_version in
 655              [789])
 656                  VCPROJ_SFX=vcproj
 657                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
 658                  ;;
 659              10|11|12|14)
 660                  VCPROJ_SFX=vcxproj
 661                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 662                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 663                  ;;
 664              esac
 665              all_targets="${all_targets} solution"
 666              INLINE="__forceinline"
 667         ;;
 668     esac
 669
 670     # Other toolchain specific defaults
 671     case $toolchain in x86*) soft_enable postproc;; esac
 672
 673     if enabled postproc_visualizer; then
 674         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 675     fi
 676
 677     # Enable unit tests by default if we have a working C++ compiler.
 678     case "$toolchain" in
 679         *-vs*)
 680             soft_enable unit_tests
 681             soft_enable webm_io
 682             soft_enable libyuv
 683         ;;
 684         *-android-*)
 685             soft_enable webm_io
 686             soft_enable libyuv
 687             # GTestLog must be modified to use Android logging utilities.
 688         ;;
 689         *-darwin-*)
 690             # iOS/ARM builds do not work with gtest. This does not match
 691             # x86 targets.
 692         ;;
 693         *-iphonesimulator-*)
 694             soft_enable webm_io
 695             soft_enable libyuv
 696         ;;
 697         *-win*)
 698             # Some mingw toolchains don't have pthread available by default.
 699             # Treat these more like visual studio where threading in gtest
 700             # would be disabled for the same reason.
 701             check_cxx "$@" <<EOF && soft_enable unit_tests
 702 int z;
 703 EOF
 704             check_cxx "$@" <<EOF && soft_enable webm_io
 705 int z;
 706 EOF
 707             check_cxx "$@" <<EOF && soft_enable libyuv
 708 int z;
 709 EOF
 710         ;;
 711         *)
 712             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 713 int z;
 714 EOF
 715             check_cxx "$@" <<EOF && soft_enable webm_io
 716 int z;
 717 EOF
 718             check_cxx "$@" <<EOF && soft_enable libyuv
 719 int z;
 720 EOF
 721         ;;
 722     esac
 723     # libwebm needs to be linked with C++ standard library
 724     enabled webm_io && LD=${CXX}
 725
 726     # append any user defined extra cflags
 727     if [ -n "${extra_cflags}" ] ; then
 728         check_add_cflags ${extra_cflags} || \
 729         die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
 730     fi
 731     if [ -n "${extra_cxxflags}" ]; then
 732         check_add_cxxflags ${extra_cxxflags} || \
 733         die "Requested extra CXXFLAGS '${extra_cxxflags}' not supported by compiler"
 734     fi
 735 }
 736
 737
 738 ##
 739 ## END APPLICATION SPECIFIC CONFIGURATION
 740 ##
 741 CONFIGURE_ARGS="$@"
 742 process "$@"
 743 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 744 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 745 #include "vpx/vpx_codec.h"
 746 static const char* const cfg = "$CONFIGURE_ARGS";
 747 const char *vpx_codec_build_config(void) {return cfg;}
 748 EOF