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