granicus.if.org Git - libvpx/blob - 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_fast_unaligned}        don't use unaligned accesses, even when
  35                                   supported by hardware [auto]
  36   ${toggle_codec_srcs}            in/exclude codec library source code
  37   ${toggle_debug_libs}            in/exclude debug version of libraries
  38   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  39   ${toggle_vp9_highbitdepth}      use VP9 high bit depth (10/12) profiles
  40   ${toggle_vp8}                   VP8 codec support
  41   ${toggle_vp9}                   VP9 codec support
  42   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  43   ${toggle_mem_tracker}           track memory usage
  44   ${toggle_postproc}              postprocessing
  45   ${toggle_vp9_postproc}          vp9 specific postprocessing
  46   ${toggle_multithread}           multithreaded encoding and decoding
  47   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  48   ${toggle_realtime_only}         enable this option while building for real-time encoding
  49   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
  50   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  51   ${toggle_coefficient_range_checking}
  52                                   enable decoder to check if intermediate
  53                                   transform coefficients are in valid range
  54   ${toggle_runtime_cpu_detect}    runtime cpu detection
  55   ${toggle_shared}                shared library support
  56   ${toggle_static}                static library support
  57   ${toggle_small}                 favor smaller size over speed
  58   ${toggle_postproc_visualizer}   macro block / block level visualizers
  59   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  60   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
  61   ${toggle_vp9_temporal_denoising}
  62                                   enable vp9 temporal denoising
  63   ${toggle_webm_io}               enable input from and output to WebM container
  64   ${toggle_libyuv}                enable libyuv
  65
  66 Codecs:
  67   Codecs can be selectively enabled or disabled individually, or by family:
  68       --disable-<codec>
  69   is equivalent to:
  70       --disable-<codec>-encoder
  71       --disable-<codec>-decoder
  72
  73   Codecs available in this distribution:
  74 EOF
  75 #restore editor state '
  76
  77     family="";
  78     last_family="";
  79     c="";
  80     str="";
  81     for c in ${CODECS}; do
  82         family=${c%_*}
  83         if [ "${family}" != "${last_family}" ]; then
  84             [ -z "${str}" ] || echo "${str}"
  85             str="$(printf '    %10s:' ${family})"
  86         fi
  87         str="${str} $(printf '%10s' ${c#*_})"
  88         last_family=${family}
  89     done
  90     echo "${str}"
  91     show_help_post
  92 }
  93
  94 ##
  95 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  96 ##
  97
  98 # all_platforms is a list of all supported target platforms. Maintain
  99 # alphabetically by architecture, generic-gnu last.
 100 all_platforms="${all_platforms} armv6-darwin-gcc"
 101 all_platforms="${all_platforms} armv6-linux-rvct"
 102 all_platforms="${all_platforms} armv6-linux-gcc"
 103 all_platforms="${all_platforms} armv6-none-rvct"
 104 all_platforms="${all_platforms} arm64-darwin-gcc"
 105 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
 106 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
 107 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 108 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 109 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 110 all_platforms="${all_platforms} armv7-win32-vs11"
 111 all_platforms="${all_platforms} armv7-win32-vs12"
 112 all_platforms="${all_platforms} armv7s-darwin-gcc"
 113 all_platforms="${all_platforms} mips32-linux-gcc"
 114 all_platforms="${all_platforms} mips64-linux-gcc"
 115 all_platforms="${all_platforms} sparc-solaris-gcc"
 116 all_platforms="${all_platforms} x86-android-gcc"
 117 all_platforms="${all_platforms} x86-darwin8-gcc"
 118 all_platforms="${all_platforms} x86-darwin8-icc"
 119 all_platforms="${all_platforms} x86-darwin9-gcc"
 120 all_platforms="${all_platforms} x86-darwin9-icc"
 121 all_platforms="${all_platforms} x86-darwin10-gcc"
 122 all_platforms="${all_platforms} x86-darwin11-gcc"
 123 all_platforms="${all_platforms} x86-darwin12-gcc"
 124 all_platforms="${all_platforms} x86-darwin13-gcc"
 125 all_platforms="${all_platforms} x86-darwin14-gcc"
 126 all_platforms="${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_64-darwin9-gcc"
 139 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 140 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 141 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 142 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 143 all_platforms="${all_platforms} x86_64-darwin14-gcc"
 144 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 145 all_platforms="${all_platforms} x86_64-linux-gcc"
 146 all_platforms="${all_platforms} x86_64-linux-icc"
 147 all_platforms="${all_platforms} x86_64-solaris-gcc"
 148 all_platforms="${all_platforms} x86_64-win64-gcc"
 149 all_platforms="${all_platforms} x86_64-win64-vs8"
 150 all_platforms="${all_platforms} x86_64-win64-vs9"
 151 all_platforms="${all_platforms} x86_64-win64-vs10"
 152 all_platforms="${all_platforms} x86_64-win64-vs11"
 153 all_platforms="${all_platforms} x86_64-win64-vs12"
 154 all_platforms="${all_platforms} universal-darwin8-gcc"
 155 all_platforms="${all_platforms} universal-darwin9-gcc"
 156 all_platforms="${all_platforms} universal-darwin10-gcc"
 157 all_platforms="${all_platforms} universal-darwin11-gcc"
 158 all_platforms="${all_platforms} universal-darwin12-gcc"
 159 all_platforms="${all_platforms} universal-darwin13-gcc"
 160 all_platforms="${all_platforms} universal-darwin14-gcc"
 161 all_platforms="${all_platforms} generic-gnu"
 162
 163 # all_targets is a list of all targets that can be configured
 164 # note that these should be in dependency order for now.
 165 all_targets="libs examples docs"
 166
 167 # all targets available are enabled, by default.
 168 for t in ${all_targets}; do
 169     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
 170 done
 171
 172 if ! perl --version >/dev/null; then
 173     die "Perl is required to build"
 174 fi
 175
 176
 177 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 178   # test to see if source_path already configured
 179   if [ -f "${source_path}/vpx_config.h" ]; then
 180     die "source directory already configured; run 'make distclean' there first"
 181   fi
 182 fi
 183
 184 # check installed doxygen version
 185 doxy_version=$(doxygen --version 2>/dev/null)
 186 doxy_major=${doxy_version%%.*}
 187 if [ ${doxy_major:-0} -ge 1 ]; then
 188     doxy_version=${doxy_version#*.}
 189     doxy_minor=${doxy_version%%.*}
 190     doxy_patch=${doxy_version##*.}
 191
 192     [ $doxy_major -gt 1 ] && enable_feature doxygen
 193     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 194     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 195 fi
 196
 197 # install everything except the sources, by default. sources will have
 198 # to be enabled when doing dist builds, since that's no longer a common
 199 # case.
 200 enabled doxygen && enable_feature install_docs
 201 enable_feature install_bins
 202 enable_feature install_libs
 203
 204 enable_feature static
 205 enable_feature optimizations
 206 enable_feature dependency_tracking
 207 enable_feature fast_unaligned #allow unaligned accesses, if supported by hw
 208 enable_feature spatial_resampling
 209 enable_feature multithread
 210 enable_feature os_support
 211 enable_feature temporal_denoising
 212
 213 [ -d "${source_path}/../include" ] && enable_feature alt_tree_layout
 214 for d in vp8 vp9; do
 215     [ -d "${source_path}/${d}" ] && disable_feature alt_tree_layout;
 216 done
 217
 218 if ! enabled alt_tree_layout; then
 219 # development environment
 220 [ -d "${source_path}/vp8" ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 221 [ -d "${source_path}/vp9" ] && CODECS="${CODECS} vp9_encoder vp9_decoder"
 222 else
 223 # customer environment
 224 [ -f "${source_path}/../include/vpx/vp8cx.h" ] && CODECS="${CODECS} vp8_encoder"
 225 [ -f "${source_path}/../include/vpx/vp8dx.h" ] && CODECS="${CODECS} vp8_decoder"
 226 [ -f "${source_path}/../include/vpx/vp9cx.h" ] && CODECS="${CODECS} vp9_encoder"
 227 [ -f "${source_path}/../include/vpx/vp9dx.h" ] && CODECS="${CODECS} vp9_decoder"
 228 [ -f "${source_path}/../include/vpx/vp8cx.h" ] || disable_feature vp8_encoder
 229 [ -f "${source_path}/../include/vpx/vp8dx.h" ] || disable_feature vp8_decoder
 230 [ -f "${source_path}/../include/vpx/vp9cx.h" ] || disable_feature vp9_encoder
 231 [ -f "${source_path}/../include/vpx/vp9dx.h" ] || disable_feature vp9_decoder
 232
 233 [ -f "${source_path}/../lib/*/*mt.lib" ] && soft_enable static_msvcrt
 234 fi
 235
 236 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 237 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 238
 239 ARCH_LIST="
 240     arm
 241     mips
 242     x86
 243     x86_64
 244 "
 245 ARCH_EXT_LIST="
 246     edsp
 247     media
 248     neon
 249     neon_asm
 250
 251     mips32
 252     dspr2
 253     msa
 254     mips64
 255
 256     mmx
 257     sse
 258     sse2
 259     sse3
 260     ssse3
 261     sse4_1
 262     avx
 263     avx2
 264 "
 265 HAVE_LIST="
 266     ${ARCH_EXT_LIST}
 267     vpx_ports
 268     stdint_h
 269     alt_tree_layout
 270     pthread_h
 271     sys_mman_h
 272     unistd_h
 273 "
 274 EXPERIMENT_LIST="
 275     spatial_svc
 276     fp_mb_stats
 277     emulate_hardware
 278 "
 279 CONFIG_LIST="
 280     dependency_tracking
 281     external_build
 282     install_docs
 283     install_bins
 284     install_libs
 285     install_srcs
 286     use_x86inc
 287     debug
 288     gprof
 289     gcov
 290     rvct
 291     gcc
 292     msvs
 293     pic
 294     big_endian
 295
 296     codec_srcs
 297     debug_libs
 298     fast_unaligned
 299     mem_tracker
 300
 301     dequant_tokens
 302     dc_recon
 303     runtime_cpu_detect
 304     postproc
 305     vp9_postproc
 306     multithread
 307     internal_stats
 308     ${CODECS}
 309     ${CODEC_FAMILIES}
 310     encoders
 311     decoders
 312     static_msvcrt
 313     spatial_resampling
 314     realtime_only
 315     onthefly_bitpacking
 316     error_concealment
 317     shared
 318     static
 319     small
 320     postproc_visualizer
 321     os_support
 322     unit_tests
 323     webm_io
 324     libyuv
 325     decode_perf_tests
 326     encode_perf_tests
 327     multi_res_encoding
 328     temporal_denoising
 329     vp9_temporal_denoising
 330     coefficient_range_checking
 331     vp9_highbitdepth
 332     experimental
 333     size_limit
 334     ${EXPERIMENT_LIST}
 335 "
 336 CMDLINE_SELECT="
 337     dependency_tracking
 338     external_build
 339     extra_warnings
 340     werror
 341     install_docs
 342     install_bins
 343     install_libs
 344     install_srcs
 345     debug
 346     gprof
 347     gcov
 348     pic
 349     use_x86inc
 350     optimizations
 351     ccache
 352     runtime_cpu_detect
 353     thumb
 354
 355     libs
 356     examples
 357     docs
 358     libc
 359     as
 360     size_limit
 361     fast_unaligned
 362     codec_srcs
 363     debug_libs
 364
 365     dequant_tokens
 366     dc_recon
 367     postproc
 368     vp9_postproc
 369     multithread
 370     internal_stats
 371     ${CODECS}
 372     ${CODEC_FAMILIES}
 373     static_msvcrt
 374     mem_tracker
 375     spatial_resampling
 376     realtime_only
 377     onthefly_bitpacking
 378     error_concealment
 379     shared
 380     static
 381     small
 382     postproc_visualizer
 383     unit_tests
 384     webm_io
 385     libyuv
 386     decode_perf_tests
 387     encode_perf_tests
 388     multi_res_encoding
 389     temporal_denoising
 390     vp9_temporal_denoising
 391     coefficient_range_checking
 392     vp9_highbitdepth
 393     experimental
 394 "
 395
 396 process_cmdline() {
 397     for opt do
 398         optval="${opt#*=}"
 399         case "$opt" in
 400         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
 401         --enable-?*|--disable-?*)
 402         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 403         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 404             if enabled experimental; then
 405                 ${action}_feature $option
 406             else
 407                 log_echo "Ignoring $opt -- not in experimental mode."
 408             fi
 409         else
 410             process_common_cmdline $opt
 411         fi
 412         ;;
 413         *) process_common_cmdline "$opt"
 414         ;;
 415         esac
 416     done
 417 }
 418
 419 post_process_cmdline() {
 420     c=""
 421
 422     # If the codec family is disabled, disable all components of that family.
 423     # If the codec family is enabled, enable all components of that family.
 424     log_echo "Configuring selected codecs"
 425     for c in ${CODECS}; do
 426         disabled ${c%%_*} && disable_feature ${c}
 427         enabled ${c%%_*} && enable_feature ${c}
 428     done
 429
 430     # Enable all detected codecs, if they haven't been disabled
 431     for c in ${CODECS}; do soft_enable $c; done
 432
 433     # Enable the codec family if any component of that family is enabled
 434     for c in ${CODECS}; do
 435         enabled $c && enable_feature ${c%_*}
 436     done
 437
 438     # Set the {en,de}coders variable if any algorithm in that class is enabled
 439     for c in ${CODECS}; do
 440         enabled ${c} && enable_feature ${c##*_}s
 441     done
 442 }
 443
 444
 445 process_targets() {
 446     enabled child || write_common_config_banner
 447     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 448
 449     # For fat binaries, call configure recursively to configure for each
 450     # binary architecture to be included.
 451     if enabled universal; then
 452         # Call configure (ourselves) for each subarchitecture
 453         for arch in $fat_bin_archs; do
 454             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 455         done
 456     fi
 457
 458     # The write_common_config (config.mk) logic is deferred until after the
 459     # recursive calls to configure complete, because we want our universal
 460     # targets to be executed last.
 461     write_common_config_targets
 462     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 463
 464     # Calculate the default distribution name, based on the enabled features
 465     cf=""
 466     DIST_DIR=vpx
 467     for cf in $CODEC_FAMILIES; do
 468         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 469             DIST_DIR="${DIST_DIR}-${cf}"
 470         elif enabled ${cf}_encoder; then
 471             DIST_DIR="${DIST_DIR}-${cf}cx"
 472         elif enabled ${cf}_decoder; then
 473             DIST_DIR="${DIST_DIR}-${cf}dx"
 474         fi
 475     done
 476     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 477     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 478     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 479     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 480     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 481     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 482     case "${tgt_os}" in
 483     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 484           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 485           ;;
 486     esac
 487     if [ -f "${source_path}/build/make/version.sh" ]; then
 488         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 489         DIST_DIR="${DIST_DIR}-${ver}"
 490         VERSION_STRING=${ver}
 491         ver=${ver%%-*}
 492         VERSION_PATCH=${ver##*.}
 493         ver=${ver%.*}
 494         VERSION_MINOR=${ver##*.}
 495         ver=${ver#v}
 496         VERSION_MAJOR=${ver%.*}
 497     fi
 498     enabled child || cat <<EOF >> config.mk
 499
 500 PREFIX=${prefix}
 501 ifeq (\$(MAKECMDGOALS),dist)
 502 DIST_DIR?=${DIST_DIR}
 503 else
 504 DIST_DIR?=\$(DESTDIR)${prefix}
 505 endif
 506 LIBSUBDIR=${libdir##${prefix}/}
 507
 508 VERSION_STRING=${VERSION_STRING}
 509
 510 VERSION_MAJOR=${VERSION_MAJOR}
 511 VERSION_MINOR=${VERSION_MINOR}
 512 VERSION_PATCH=${VERSION_PATCH}
 513
 514 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 515 EOF
 516     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 517
 518     #
 519     # Write makefiles for all enabled targets
 520     #
 521     for tgt in libs examples docs solution; do
 522         tgt_fn="$tgt-$toolchain.mk"
 523
 524         if enabled $tgt; then
 525             echo "Creating makefiles for ${toolchain} ${tgt}"
 526             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 527             #write_${tgt}_config
 528         fi
 529     done
 530
 531 }
 532
 533 process_detect() {
 534     if enabled shared; then
 535         # Can only build shared libs on a subset of platforms. Doing this check
 536         # here rather than at option parse time because the target auto-detect
 537         # magic happens after the command line has been parsed.
 538         if ! enabled linux; then
 539             if enabled gnu; then
 540                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 541             else
 542                 die "--enable-shared only supported on ELF for now"
 543             fi
 544         fi
 545     fi
 546     if [ -z "$CC" ] || enabled external_build; then
 547         echo "Bypassing toolchain for environment detection."
 548         enable_feature external_build
 549         check_header() {
 550             log fake_check_header "$@"
 551             header=$1
 552             shift
 553             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 554             disable_feature $var
 555             # Headers common to all environments
 556             case $header in
 557                 stdio.h)
 558                     true;
 559                 ;;
 560                 *)
 561                     result=false
 562                     for d in "$@"; do
 563                         [ -f "${d##-I}/$header" ] && result=true && break
 564                     done
 565                     ${result:-true}
 566             esac && enable_feature $var
 567
 568             # Specialize windows and POSIX environments.
 569             case $toolchain in
 570                 *-win*-*)
 571                     case $header-$toolchain in
 572                         stdint*-gcc) true;;
 573                         *) false;;
 574                     esac && enable_feature $var
 575                     ;;
 576                 *)
 577                     case $header in
 578                         stdint.h) true;;
 579                         pthread.h) true;;
 580                         sys/mman.h) true;;
 581                         unistd.h) true;;
 582                         *) false;;
 583                     esac && enable_feature $var
 584             esac
 585             enabled $var
 586         }
 587         check_ld() {
 588             true
 589         }
 590     fi
 591     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 592     check_ld <<EOF || die "Toolchain is unable to link executables"
 593 int main(void) {return 0;}
 594 EOF
 595     # check system headers
 596     check_header stdint.h
 597     check_header pthread.h
 598     check_header sys/mman.h
 599     check_header unistd.h # for sysconf(3) and friends.
 600
 601     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 602 }
 603
 604 process_toolchain() {
 605     process_common_toolchain
 606
 607     # Handle universal binaries for this architecture
 608     case $toolchain in
 609         universal-darwin*)
 610             darwin_ver=${tgt_os##darwin}
 611
 612             # Tiger (10.4/darwin8) brought support for x86
 613             if [ $darwin_ver -ge 8 ]; then
 614                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 615             fi
 616
 617             # Leopard (10.5/darwin9) brought 64 bit support
 618             if [ $darwin_ver -ge 9 ]; then
 619                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 620             fi
 621             ;;
 622     esac
 623
 624
 625     # Enable some useful compiler flags
 626     if enabled gcc; then
 627         enabled werror && check_add_cflags -Werror
 628         check_add_cflags -Wall
 629         check_add_cflags -Wdeclaration-after-statement
 630         check_add_cflags -Wdisabled-optimization
 631         check_add_cflags -Wpointer-arith
 632         check_add_cflags -Wtype-limits
 633         check_add_cflags -Wcast-qual
 634         check_add_cflags -Wvla
 635         check_add_cflags -Wimplicit-function-declaration
 636         check_add_cflags -Wuninitialized
 637         check_add_cflags -Wunused-variable
 638         case ${CC} in
 639           *clang*)
 640               # libvpx and/or clang have issues with aliasing:
 641               # https://code.google.com/p/webm/issues/detail?id=603
 642               # work around them until they are fixed
 643               check_add_cflags -fno-strict-aliasing
 644           ;;
 645           *) check_add_cflags -Wunused-but-set-variable ;;
 646         esac
 647         enabled extra_warnings || check_add_cflags -Wno-unused-function
 648     fi
 649
 650     if enabled icc; then
 651         enabled werror && check_add_cflags -Werror
 652         check_add_cflags -Wall
 653         check_add_cflags -Wpointer-arith
 654
 655         # ICC has a number of floating point optimizations that we disable
 656         # in favor of deterministic output WRT to other compilers
 657         add_cflags -fp-model precise
 658     fi
 659
 660     # Enable extra, harmless warnings. These might provide additional insight
 661     # to what the compiler is doing and why, but in general, but they shouldn't
 662     # be treated as fatal, even if we're treating warnings as errors.
 663     GCC_EXTRA_WARNINGS="
 664         -Wdisabled-optimization
 665         -Winline
 666     "
 667     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 668     RVCT_EXTRA_WARNINGS="
 669         --remarks
 670     "
 671     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 672     if enabled extra_warnings; then
 673         for w in ${EXTRA_WARNINGS}; do
 674             check_add_cflags ${w}
 675             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 676         done
 677     fi
 678
 679     # ccache only really works on gcc toolchains
 680     enabled gcc || soft_disable ccache
 681     if enabled mips; then
 682         enable_feature dequant_tokens
 683         enable_feature dc_recon
 684     fi
 685
 686     if enabled internal_stats; then
 687         enable_feature vp9_postproc
 688     fi
 689
 690     # Enable the postbuild target if building for visual studio.
 691     case "$tgt_cc" in
 692         vs*) enable_feature msvs
 693              enable_feature solution
 694              vs_version=${tgt_cc##vs}
 695              case $vs_version in
 696              [789])
 697                  VCPROJ_SFX=vcproj
 698                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
 699                  ;;
 700              10|11|12)
 701                  VCPROJ_SFX=vcxproj
 702                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 703                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 704                  ;;
 705              esac
 706              all_targets="${all_targets} solution"
 707              INLINE="__forceinline"
 708         ;;
 709     esac
 710
 711     # Other toolchain specific defaults
 712     case $toolchain in x86*|universal*) soft_enable postproc;; esac
 713
 714     if enabled postproc_visualizer; then
 715         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 716     fi
 717
 718     # Enable unit tests by default if we have a working C++ compiler.
 719     case "$toolchain" in
 720         *-vs*)
 721             soft_enable unit_tests
 722             soft_enable webm_io
 723             soft_enable libyuv
 724         ;;
 725         *-android-*)
 726             soft_enable webm_io
 727             soft_enable libyuv
 728             # GTestLog must be modified to use Android logging utilities.
 729         ;;
 730         *-darwin-*)
 731             # iOS/ARM builds do not work with gtest. This does not match
 732             # x86 targets.
 733         ;;
 734         *-iphonesimulator-*)
 735             soft_enable webm_io
 736             soft_enable libyuv
 737         ;;
 738         *-win*)
 739             # Some mingw toolchains don't have pthread available by default.
 740             # Treat these more like visual studio where threading in gtest
 741             # would be disabled for the same reason.
 742             check_cxx "$@" <<EOF && soft_enable unit_tests
 743 int z;
 744 EOF
 745             check_cxx "$@" <<EOF && soft_enable webm_io
 746 int z;
 747 EOF
 748             check_cxx "$@" <<EOF && soft_enable libyuv
 749 int z;
 750 EOF
 751         ;;
 752         *)
 753             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 754 int z;
 755 EOF
 756             check_cxx "$@" <<EOF && soft_enable webm_io
 757 int z;
 758 EOF
 759             check_cxx "$@" <<EOF && soft_enable libyuv
 760 int z;
 761 EOF
 762         ;;
 763     esac
 764     # libwebm needs to be linked with C++ standard library
 765     enabled webm_io && LD=${CXX}
 766 }
 767
 768
 769 ##
 770 ## END APPLICATION SPECIFIC CONFIGURATION
 771 ##
 772 CONFIGURE_ARGS="$@"
 773 process "$@"
 774 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 775 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 776 static const char* const cfg = "$CONFIGURE_ARGS";
 777 const char *vpx_codec_build_config(void) {return cfg;}
 778 EOF