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_tools}                 tools
  26   ${toggle_docs}                  documentation
  27   ${toggle_unit_tests}            unit tests
  28   ${toggle_decode_perf_tests}     build decoder perf tests with unit tests
  29   ${toggle_encode_perf_tests}     build encoder perf tests with unit tests
  30   --cpu=CPU                       tune for the specified CPU (ARM: cortex-a8, X86: sse3)
  31   --libc=PATH                     path to alternate libc
  32   --size-limit=WxH                max size to allow in the decoder
  33   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  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_better_hw_compatibility}
  39                                   enable encoder to produce streams with better
  40                                   hardware decoder compatibility
  41   ${toggle_vp8}                   VP8 codec support
  42   ${toggle_vp9}                   VP9 codec support
  43   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  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} arm64-android-gcc"
 101 all_platforms="${all_platforms} arm64-darwin-gcc"
 102 all_platforms="${all_platforms} arm64-linux-gcc"
 103 all_platforms="${all_platforms} arm64-win64-gcc"
 104 all_platforms="${all_platforms} arm64-win64-vs15"
 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-gcc"
 111 all_platforms="${all_platforms} armv7-win32-vs14"
 112 all_platforms="${all_platforms} armv7-win32-vs15"
 113 all_platforms="${all_platforms} armv7s-darwin-gcc"
 114 all_platforms="${all_platforms} armv8-linux-gcc"
 115 all_platforms="${all_platforms} mips32-linux-gcc"
 116 all_platforms="${all_platforms} mips64-linux-gcc"
 117 all_platforms="${all_platforms} ppc64le-linux-gcc"
 118 all_platforms="${all_platforms} sparc-solaris-gcc"
 119 all_platforms="${all_platforms} x86-android-gcc"
 120 all_platforms="${all_platforms} x86-darwin8-gcc"
 121 all_platforms="${all_platforms} x86-darwin8-icc"
 122 all_platforms="${all_platforms} x86-darwin9-gcc"
 123 all_platforms="${all_platforms} x86-darwin9-icc"
 124 all_platforms="${all_platforms} x86-darwin10-gcc"
 125 all_platforms="${all_platforms} x86-darwin11-gcc"
 126 all_platforms="${all_platforms} x86-darwin12-gcc"
 127 all_platforms="${all_platforms} x86-darwin13-gcc"
 128 all_platforms="${all_platforms} x86-darwin14-gcc"
 129 all_platforms="${all_platforms} x86-darwin15-gcc"
 130 all_platforms="${all_platforms} x86-darwin16-gcc"
 131 all_platforms="${all_platforms} x86-darwin17-gcc"
 132 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 133 all_platforms="${all_platforms} x86-linux-gcc"
 134 all_platforms="${all_platforms} x86-linux-icc"
 135 all_platforms="${all_platforms} x86-os2-gcc"
 136 all_platforms="${all_platforms} x86-solaris-gcc"
 137 all_platforms="${all_platforms} x86-win32-gcc"
 138 all_platforms="${all_platforms} x86-win32-vs14"
 139 all_platforms="${all_platforms} x86-win32-vs15"
 140 all_platforms="${all_platforms} x86-win32-vs16"
 141 all_platforms="${all_platforms} x86_64-android-gcc"
 142 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 143 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 144 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 145 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 146 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 147 all_platforms="${all_platforms} x86_64-darwin14-gcc"
 148 all_platforms="${all_platforms} x86_64-darwin15-gcc"
 149 all_platforms="${all_platforms} x86_64-darwin16-gcc"
 150 all_platforms="${all_platforms} x86_64-darwin17-gcc"
 151 all_platforms="${all_platforms} x86_64-darwin18-gcc"
 152 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 153 all_platforms="${all_platforms} x86_64-linux-gcc"
 154 all_platforms="${all_platforms} x86_64-linux-icc"
 155 all_platforms="${all_platforms} x86_64-solaris-gcc"
 156 all_platforms="${all_platforms} x86_64-win64-gcc"
 157 all_platforms="${all_platforms} x86_64-win64-vs14"
 158 all_platforms="${all_platforms} x86_64-win64-vs15"
 159 all_platforms="${all_platforms} x86_64-win64-vs16"
 160 all_platforms="${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 tools 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 ${t}
 169 done
 170
 171 if ! diff --version >/dev/null; then
 172   die "diff missing: Try installing diffutils via your package manager."
 173 fi
 174
 175 if ! perl --version >/dev/null; then
 176     die "Perl is required to build"
 177 fi
 178
 179 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 180   # test to see if source_path already configured
 181   if [ -f "${source_path}/vpx_config.h" ]; then
 182     die "source directory already configured; run 'make distclean' there first"
 183   fi
 184 fi
 185
 186 # check installed doxygen version
 187 doxy_version=$(doxygen --version 2>/dev/null)
 188 doxy_major=${doxy_version%%.*}
 189 if [ ${doxy_major:-0} -ge 1 ]; then
 190     doxy_version=${doxy_version#*.}
 191     doxy_minor=${doxy_version%%.*}
 192     doxy_patch=${doxy_version##*.}
 193
 194     [ $doxy_major -gt 1 ] && enable_feature doxygen
 195     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 196     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 197 fi
 198
 199 # disable codecs when their source directory does not exist
 200 [ -d "${source_path}/vp8" ] || disable_codec vp8
 201 [ -d "${source_path}/vp9" ] || disable_codec vp9
 202
 203 # install everything except the sources, by default. sources will have
 204 # to be enabled when doing dist builds, since that's no longer a common
 205 # case.
 206 enabled doxygen && enable_feature install_docs
 207 enable_feature install_bins
 208 enable_feature install_libs
 209
 210 enable_feature static
 211 enable_feature optimizations
 212 enable_feature dependency_tracking
 213 enable_feature spatial_resampling
 214 enable_feature multithread
 215 enable_feature os_support
 216 enable_feature temporal_denoising
 217
 218 CODECS="
 219     vp8_encoder
 220     vp8_decoder
 221     vp9_encoder
 222     vp9_decoder
 223 "
 224 CODEC_FAMILIES="
 225     vp8
 226     vp9
 227 "
 228
 229 ARCH_LIST="
 230     arm
 231     mips
 232     x86
 233     x86_64
 234     ppc
 235 "
 236 ARCH_EXT_LIST_X86="
 237     mmx
 238     sse
 239     sse2
 240     sse3
 241     ssse3
 242     sse4_1
 243     avx
 244     avx2
 245     avx512
 246 "
 247
 248 ARCH_EXT_LIST_LOONGSON="
 249     mmi
 250 "
 251
 252 ARCH_EXT_LIST="
 253     neon
 254     neon_asm
 255
 256     mips32
 257     dspr2
 258     msa
 259     mips64
 260
 261     ${ARCH_EXT_LIST_X86}
 262
 263     vsx
 264
 265     ${ARCH_EXT_LIST_LOONGSON}
 266 "
 267 HAVE_LIST="
 268     ${ARCH_EXT_LIST}
 269     vpx_ports
 270     pthread_h
 271     unistd_h
 272 "
 273 EXPERIMENT_LIST="
 274     fp_mb_stats
 275     emulate_hardware
 276     non_greedy_mv
 277     rate_ctrl
 278 "
 279 CONFIG_LIST="
 280     dependency_tracking
 281     external_build
 282     install_docs
 283     install_bins
 284     install_libs
 285     install_srcs
 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
 298     dequant_tokens
 299     dc_recon
 300     runtime_cpu_detect
 301     postproc
 302     vp9_postproc
 303     multithread
 304     internal_stats
 305     ${CODECS}
 306     ${CODEC_FAMILIES}
 307     encoders
 308     decoders
 309     static_msvcrt
 310     spatial_resampling
 311     realtime_only
 312     onthefly_bitpacking
 313     error_concealment
 314     shared
 315     static
 316     small
 317     postproc_visualizer
 318     os_support
 319     unit_tests
 320     webm_io
 321     libyuv
 322     decode_perf_tests
 323     encode_perf_tests
 324     multi_res_encoding
 325     temporal_denoising
 326     vp9_temporal_denoising
 327     consistent_recode
 328     coefficient_range_checking
 329     vp9_highbitdepth
 330     better_hw_compatibility
 331     experimental
 332     size_limit
 333     always_adjust_bpm
 334     bitstream_debug
 335     mismatch_debug
 336     ${EXPERIMENT_LIST}
 337 "
 338 CMDLINE_SELECT="
 339     dependency_tracking
 340     external_build
 341     extra_warnings
 342     werror
 343     install_docs
 344     install_bins
 345     install_libs
 346     install_srcs
 347     debug
 348     gprof
 349     gcov
 350     pic
 351     optimizations
 352     ccache
 353     runtime_cpu_detect
 354     thumb
 355
 356     libs
 357     examples
 358     tools
 359     docs
 360     libc
 361     as
 362     size_limit
 363     codec_srcs
 364     debug_libs
 365
 366     dequant_tokens
 367     dc_recon
 368     postproc
 369     vp9_postproc
 370     multithread
 371     internal_stats
 372     ${CODECS}
 373     ${CODEC_FAMILIES}
 374     static_msvcrt
 375     spatial_resampling
 376     realtime_only
 377     onthefly_bitpacking
 378     error_concealment
 379     shared
 380     static
 381     small
 382     postproc_visualizer
 383     unit_tests
 384     webm_io
 385     libyuv
 386     decode_perf_tests
 387     encode_perf_tests
 388     multi_res_encoding
 389     temporal_denoising
 390     vp9_temporal_denoising
 391     consistent_recode
 392     coefficient_range_checking
 393     better_hw_compatibility
 394     vp9_highbitdepth
 395     experimental
 396     always_adjust_bpm
 397     bitstream_debug
 398     mismatch_debug
 399 "
 400
 401 process_cmdline() {
 402     for opt do
 403         optval="${opt#*=}"
 404         case "$opt" in
 405         --disable-codecs)
 406           for c in ${CODEC_FAMILIES}; do disable_codec $c; done
 407           ;;
 408         --enable-?*|--disable-?*)
 409         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 410         if is_in ${option} ${EXPERIMENT_LIST}; then
 411             if enabled experimental; then
 412                 ${action}_feature $option
 413             else
 414                 log_echo "Ignoring $opt -- not in experimental mode."
 415             fi
 416         elif is_in ${option} "${CODECS} ${CODEC_FAMILIES}"; then
 417             ${action}_codec ${option}
 418         else
 419             process_common_cmdline $opt
 420         fi
 421         ;;
 422         *) process_common_cmdline "$opt"
 423         ;;
 424         esac
 425     done
 426 }
 427
 428 post_process_cmdline() {
 429     if enabled coefficient_range_checking; then
 430       echo "coefficient-range-checking is for decoders only, disabling encoders:"
 431       soft_disable vp8_encoder
 432       soft_disable vp9_encoder
 433     fi
 434
 435     c=""
 436
 437     # Enable all detected codecs, if they haven't been disabled
 438     for c in ${CODECS}; do soft_enable $c; done
 439
 440     # Enable the codec family if any component of that family is enabled
 441     for c in ${CODECS}; do
 442         enabled $c && enable_feature ${c%_*}
 443     done
 444
 445     # Set the {en,de}coders variable if any algorithm in that class is enabled
 446     for c in ${CODECS}; do
 447         enabled ${c} && enable_feature ${c##*_}s
 448     done
 449 }
 450
 451
 452 process_targets() {
 453     enabled child || write_common_config_banner
 454     write_common_target_config_h ${BUILD_PFX}vpx_config.h
 455     write_common_config_targets
 456     enabled win_arm64_neon_h_workaround && write_win_arm64_neon_h_workaround ${BUILD_PFX}arm_neon.h
 457
 458     # Calculate the default distribution name, based on the enabled features
 459     cf=""
 460     DIST_DIR=vpx
 461     for cf in $CODEC_FAMILIES; do
 462         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 463             DIST_DIR="${DIST_DIR}-${cf}"
 464         elif enabled ${cf}_encoder; then
 465             DIST_DIR="${DIST_DIR}-${cf}cx"
 466         elif enabled ${cf}_decoder; then
 467             DIST_DIR="${DIST_DIR}-${cf}dx"
 468         fi
 469     done
 470     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 471     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 472     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 473     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 474     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 475     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 476     case "${tgt_os}" in
 477     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 478           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 479           ;;
 480     esac
 481     if [ -f "${source_path}/build/make/version.sh" ]; then
 482         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 483         DIST_DIR="${DIST_DIR}-${ver}"
 484         VERSION_STRING=${ver}
 485         ver=${ver%%-*}
 486         VERSION_PATCH=${ver##*.}
 487         ver=${ver%.*}
 488         VERSION_MINOR=${ver##*.}
 489         ver=${ver#v}
 490         VERSION_MAJOR=${ver%.*}
 491     fi
 492     enabled child || cat <<EOF >> config.mk
 493
 494 PREFIX=${prefix}
 495 ifeq (\$(MAKECMDGOALS),dist)
 496 DIST_DIR?=${DIST_DIR}
 497 else
 498 DIST_DIR?=\$(DESTDIR)${prefix}
 499 endif
 500 LIBSUBDIR=${libdir##${prefix}/}
 501
 502 VERSION_STRING=${VERSION_STRING}
 503
 504 VERSION_MAJOR=${VERSION_MAJOR}
 505 VERSION_MINOR=${VERSION_MINOR}
 506 VERSION_PATCH=${VERSION_PATCH}
 507
 508 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 509 EOF
 510     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 511
 512     #
 513     # Write makefiles for all enabled targets
 514     #
 515     for tgt in libs examples tools docs solution; do
 516         tgt_fn="$tgt-$toolchain.mk"
 517
 518         if enabled $tgt; then
 519             echo "Creating makefiles for ${toolchain} ${tgt}"
 520             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 521             #write_${tgt}_config
 522         fi
 523     done
 524
 525 }
 526
 527 process_detect() {
 528     if enabled shared; then
 529         # Can only build shared libs on a subset of platforms. Doing this check
 530         # here rather than at option parse time because the target auto-detect
 531         # magic happens after the command line has been parsed.
 532         case "${tgt_os}" in
 533         linux|os2|solaris|darwin*|iphonesimulator*)
 534             # Supported platforms
 535             ;;
 536         *)
 537             if enabled gnu; then
 538                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 539             else
 540                 die "--enable-shared only supported on ELF, OS/2, and Darwin for now"
 541             fi
 542             ;;
 543         esac
 544     fi
 545     if [ -z "$CC" ] || enabled external_build; then
 546         echo "Bypassing toolchain for environment detection."
 547         enable_feature external_build
 548         check_header() {
 549             log fake_check_header "$@"
 550             header=$1
 551             shift
 552             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 553             disable_feature $var
 554             # Headers common to all environments
 555             case $header in
 556                 stdio.h)
 557                     true;
 558                 ;;
 559                 *)
 560                     result=false
 561                     for d in "$@"; do
 562                         [ -f "${d##-I}/$header" ] && result=true && break
 563                     done
 564                     ${result:-true}
 565             esac && enable_feature $var
 566
 567             # Specialize windows and POSIX environments.
 568             case $toolchain in
 569                 *-win*-*)
 570                     # Don't check for any headers in Windows builds.
 571                     false
 572                 ;;
 573                 *)
 574                     case $header in
 575                         pthread.h) true;;
 576                         unistd.h) true;;
 577                         *) false;;
 578                     esac && enable_feature $var
 579             esac
 580             enabled $var
 581         }
 582         check_ld() {
 583             true
 584         }
 585         check_lib() {
 586             true
 587         }
 588     fi
 589     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 590     check_ld <<EOF || die "Toolchain is unable to link executables"
 591 int main(void) {return 0;}
 592 EOF
 593     # check system headers
 594
 595     # Use both check_header and check_lib here, since check_lib
 596     # could be a stub that always returns true.
 597     check_header pthread.h && check_lib -lpthread <<EOF || disable_feature pthread_h
 598 #include <pthread.h>
 599 #include <stddef.h>
 600 int main(void) { return pthread_create(NULL, NULL, NULL, NULL); }
 601 EOF
 602     check_header unistd.h # for sysconf(3) and friends.
 603
 604     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 605
 606     if enabled neon && ! enabled external_build; then
 607       check_header arm_neon.h || die "Unable to find arm_neon.h"
 608     fi
 609 }
 610
 611 process_toolchain() {
 612     process_common_toolchain
 613
 614     # Enable some useful compiler flags
 615     if enabled gcc; then
 616         enabled werror && check_add_cflags -Werror
 617         check_add_cflags -Wall
 618         check_add_cflags -Wdeclaration-after-statement
 619         check_add_cflags -Wdisabled-optimization
 620         check_add_cflags -Wfloat-conversion
 621         check_add_cflags -Wparentheses-equality
 622         check_add_cflags -Wpointer-arith
 623         check_add_cflags -Wtype-limits
 624         check_add_cflags -Wcast-qual
 625         check_add_cflags -Wvla
 626         check_add_cflags -Wimplicit-function-declaration
 627         check_add_cflags -Wmissing-declarations
 628         check_add_cflags -Wmissing-prototypes
 629         check_add_cflags -Wuninitialized
 630         check_add_cflags -Wunused
 631         check_add_cflags -Wextra
 632         # check_add_cflags also adds to cxxflags. gtest does not do well with
 633         # these flags so add them explicitly to CFLAGS only.
 634         check_cflags -Wundef && add_cflags_only -Wundef
 635         check_cflags -Wframe-larger-than=52000 && \
 636           add_cflags_only -Wframe-larger-than=52000
 637         if enabled mips || [ -z "${INLINE}" ]; then
 638           enabled extra_warnings || check_add_cflags -Wno-unused-function
 639         fi
 640         # Enforce c89 for c files. Don't be too strict about it though. Allow
 641         # gnu extensions like "//" for comments.
 642         check_cflags -std=gnu89 && add_cflags_only -std=gnu89
 643         # Avoid this warning for third_party C++ sources. Some reorganization
 644         # would be needed to apply this only to test/*.cc.
 645         check_cflags -Wshorten-64-to-32 && add_cflags_only -Wshorten-64-to-32
 646
 647         # Quiet gcc 6 vs 7 abi warnings:
 648         # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728
 649         if enabled arm; then
 650           check_add_cxxflags -Wno-psabi
 651         fi
 652
 653         # disable some warnings specific to libyuv.
 654         check_cxxflags -Wno-missing-declarations \
 655           && LIBYUV_CXXFLAGS="${LIBYUV_CXXFLAGS} -Wno-missing-declarations"
 656         check_cxxflags -Wno-missing-prototypes \
 657           && LIBYUV_CXXFLAGS="${LIBYUV_CXXFLAGS} -Wno-missing-prototypes"
 658         check_cxxflags -Wno-unused-parameter \
 659           && LIBYUV_CXXFLAGS="${LIBYUV_CXXFLAGS} -Wno-unused-parameter"
 660     fi
 661
 662     if enabled icc; then
 663         enabled werror && check_add_cflags -Werror
 664         check_add_cflags -Wall
 665         check_add_cflags -Wpointer-arith
 666
 667         # ICC has a number of floating point optimizations that we disable
 668         # in favor of deterministic output WRT to other compilers
 669         add_cflags -fp-model precise
 670     fi
 671
 672     # Enable extra, harmless warnings. These might provide additional insight
 673     # to what the compiler is doing and why, but in general, but they shouldn't
 674     # be treated as fatal, even if we're treating warnings as errors.
 675     GCC_EXTRA_WARNINGS="
 676         -Wdisabled-optimization
 677         -Winline
 678     "
 679     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 680     RVCT_EXTRA_WARNINGS="
 681         --remarks
 682     "
 683     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 684     if enabled extra_warnings; then
 685         for w in ${EXTRA_WARNINGS}; do
 686             check_add_cflags ${w}
 687             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 688         done
 689     fi
 690
 691     # ccache only really works on gcc toolchains
 692     enabled gcc || soft_disable ccache
 693     if enabled mips; then
 694         enable_feature dequant_tokens
 695         enable_feature dc_recon
 696     fi
 697
 698     if enabled internal_stats; then
 699         enable_feature vp9_postproc
 700     fi
 701
 702     # Enable the postbuild target if building for visual studio.
 703     case "$tgt_cc" in
 704         vs*) enable_feature msvs
 705              enable_feature solution
 706              vs_version=${tgt_cc##vs}
 707              VCPROJ_SFX=vcxproj
 708              gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 709              enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 710              all_targets="${all_targets} solution"
 711              INLINE="__inline"
 712         ;;
 713     esac
 714
 715     # Other toolchain specific defaults
 716     case $toolchain in x86*) soft_enable postproc;; esac
 717
 718     if enabled postproc_visualizer; then
 719         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 720     fi
 721
 722     # Enable unit tests by default if we have a working C++ compiler.
 723     case "$toolchain" in
 724         *-vs*)
 725             soft_enable unit_tests
 726             soft_enable webm_io
 727             soft_enable libyuv
 728         ;;
 729         *-android-*)
 730             check_add_cxxflags -std=c++11 && soft_enable webm_io
 731             soft_enable libyuv
 732             # GTestLog must be modified to use Android logging utilities.
 733         ;;
 734         *-darwin-*)
 735             # iOS/ARM builds do not work with gtest. This does not match
 736             # x86 targets.
 737         ;;
 738         *-iphonesimulator-*)
 739             check_add_cxxflags -std=c++11 && soft_enable webm_io
 740             soft_enable libyuv
 741         ;;
 742         *-win*)
 743             # Some mingw toolchains don't have pthread available by default.
 744             # Treat these more like visual studio where threading in gtest
 745             # would be disabled for the same reason.
 746             check_add_cxxflags -std=c++11 && soft_enable unit_tests \
 747               && soft_enable webm_io
 748             check_cxx "$@" <<EOF && soft_enable libyuv
 749 int z;
 750 EOF
 751         ;;
 752         *)
 753             enabled pthread_h && check_add_cxxflags -std=c++11 \
 754               && soft_enable unit_tests
 755             check_add_cxxflags -std=c++11 && soft_enable webm_io
 756             check_cxx "$@" <<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=${CXX}
 763
 764     # append any user defined extra cflags
 765     if [ -n "${extra_cflags}" ] ; then
 766         check_add_cflags ${extra_cflags} || \
 767         die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
 768     fi
 769     if [ -n "${extra_cxxflags}" ]; then
 770         check_add_cxxflags ${extra_cxxflags} || \
 771         die "Requested extra CXXFLAGS '${extra_cxxflags}' not supported by compiler"
 772     fi
 773 }
 774
 775
 776 ##
 777 ## END APPLICATION SPECIFIC CONFIGURATION
 778 ##
 779 CONFIGURE_ARGS="$@"
 780 process "$@"
 781 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 782 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 783 #include "vpx/vpx_codec.h"
 784 static const char* const cfg = "$CONFIGURE_ARGS";
 785 const char *vpx_codec_build_config(void) {return cfg;}
 786 EOF