configure

   1 #!/bin/bash
   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}                  don't build libraries
  24   ${toggle_examples}              don't build examples
  25   ${toggle_unit_tests}            build unit tests
  26   --libc=PATH                     path to alternate libc
  27   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  28   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  29                                   supported by hardware [auto]
  30   ${toggle_codec_srcs}            in/exclude codec library source code
  31   ${toggle_debug_libs}            in/exclude debug version of libraries
  32   ${toggle_md5}                   support for output of checksum data
  33   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  34   ${toggle_vp8}                   VP8 codec support
  35   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  36   ${toggle_mem_tracker}           track memory usage
  37   ${toggle_postproc}              postprocessing
  38   ${toggle_multithread}           multithreaded encoding and decoding.
  39   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  40   ${toggle_realtime_only}         enable this option while building for real-time encoding
  41   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  42   ${toggle_runtime_cpu_detect}    runtime cpu detection
  43   ${toggle_shared}                shared library support
  44   ${toggle_static}                static library support
  45   ${toggle_small}                 favor smaller size over speed
  46   ${toggle_postproc_visualizer}   macro block / block level visualizers
  47
  48 Codecs:
  49   Codecs can be selectively enabled or disabled individually, or by family:
  50       --disable-<codec>
  51   is equivalent to:
  52       --disable-<codec>-encoder
  53       --disable-<codec>-decoder
  54
  55   Codecs available in this distribution:
  56 EOF
  57 #restore editor state '
  58
  59     local family;
  60     local last_family;
  61     local c;
  62     local str;
  63     for c in ${CODECS}; do
  64         family=${c%_*}
  65         if [ "${family}" != "${last_family}" ]; then
  66             [ -z "${str}" ] || echo "${str}"
  67             str="$(printf '    %10s:' ${family})"
  68         fi
  69         str="${str} $(printf '%10s' ${c#*_})"
  70         last_family=${family}
  71     done
  72     echo "${str}"
  73     show_help_post
  74 }
  75
  76 ##
  77 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  78 ##
  79
  80 # all_platforms is a list of all supported target platforms. Maintain
  81 # alphabetically by architecture, generic-gnu last.
  82 all_platforms="${all_platforms} armv5te-linux-rvct"
  83 all_platforms="${all_platforms} armv5te-linux-gcc"
  84 all_platforms="${all_platforms} armv5te-none-rvct"
  85 all_platforms="${all_platforms} armv5te-symbian-gcc"
  86 all_platforms="${all_platforms} armv6-darwin-gcc"
  87 all_platforms="${all_platforms} armv6-linux-rvct"
  88 all_platforms="${all_platforms} armv6-linux-gcc"
  89 all_platforms="${all_platforms} armv6-none-rvct"
  90 all_platforms="${all_platforms} armv6-symbian-gcc"
  91 all_platforms="${all_platforms} iwmmxt-linux-rvct"
  92 all_platforms="${all_platforms} iwmmxt-linux-gcc"
  93 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
  94 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
  95 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  96 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  97 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
  98 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
  99 all_platforms="${all_platforms} mips32-linux-gcc"
 100 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 101 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 102 all_platforms="${all_platforms} ppc32-linux-gcc"
 103 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 104 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 105 all_platforms="${all_platforms} ppc64-linux-gcc"
 106 all_platforms="${all_platforms} sparc-solaris-gcc"
 107 all_platforms="${all_platforms} x86-darwin8-gcc"
 108 all_platforms="${all_platforms} x86-darwin8-icc"
 109 all_platforms="${all_platforms} x86-darwin9-gcc"
 110 all_platforms="${all_platforms} x86-darwin9-icc"
 111 all_platforms="${all_platforms} x86-darwin10-gcc"
 112 all_platforms="${all_platforms} x86-linux-gcc"
 113 all_platforms="${all_platforms} x86-linux-icc"
 114 all_platforms="${all_platforms} x86-solaris-gcc"
 115 all_platforms="${all_platforms} x86-win32-gcc"
 116 all_platforms="${all_platforms} x86-win32-vs7"
 117 all_platforms="${all_platforms} x86-win32-vs8"
 118 all_platforms="${all_platforms} x86-win32-vs9"
 119 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 120 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 121 all_platforms="${all_platforms} x86_64-linux-gcc"
 122 all_platforms="${all_platforms} x86_64-linux-icc"
 123 all_platforms="${all_platforms} x86_64-solaris-gcc"
 124 all_platforms="${all_platforms} x86_64-win64-vs8"
 125 all_platforms="${all_platforms} x86_64-win64-vs9"
 126 all_platforms="${all_platforms} universal-darwin8-gcc"
 127 all_platforms="${all_platforms} universal-darwin9-gcc"
 128 all_platforms="${all_platforms} generic-gnu"
 129
 130 # all_targets is a list of all targets that can be configured
 131 # note that these should be in dependency order for now.
 132 all_targets="libs examples docs"
 133
 134 # all targets available are enabled, by default.
 135 for t in ${all_targets}; do
 136     [ -f ${source_path}/${t}.mk ] && enable ${t}
 137 done
 138
 139 # check installed doxygen version
 140 doxy_version=$(doxygen --version 2>/dev/null)
 141 doxy_major=${doxy_version%%.*}
 142 if [ ${doxy_major:-0} -ge 1 ]; then
 143     doxy_version=${doxy_version#*.}
 144     doxy_minor=${doxy_version%%.*}
 145     doxy_patch=${doxy_version##*.}
 146
 147     [ $doxy_major -gt 1 ] && enable doxygen
 148     [ $doxy_minor -gt 5 ] && enable doxygen
 149     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 150 fi
 151
 152 # install everything except the sources, by default. sources will have
 153 # to be enabled when doing dist builds, since that's no longer a common
 154 # case.
 155 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 156 enable install_bins
 157 enable install_libs
 158
 159 enable static
 160 enable optimizations
 161 enable fast_unaligned #allow unaligned accesses, if supported by hw
 162 enable md5
 163 enable spatial_resampling
 164 enable multithread
 165 enable os_support
 166
 167 [ -d ${source_path}/../include ] && enable alt_tree_layout
 168 for d in vp8; do
 169     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 170 done
 171
 172 if ! enabled alt_tree_layout; then
 173 # development environment
 174 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 175 else
 176 # customer environment
 177 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 178 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 179
 180 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 181 fi
 182
 183 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 184 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 185
 186 ARCH_LIST="
 187     arm
 188     mips
 189     x86
 190     x86_64
 191     ppc32
 192     ppc64
 193 "
 194 ARCH_EXT_LIST="
 195     armv5te
 196     armv6
 197     armv7
 198     iwmmxt
 199     iwmmxt2
 200
 201     mips32
 202
 203     mmx
 204     sse
 205     sse2
 206     sse3
 207     ssse3
 208     sse4_1
 209
 210     altivec
 211 "
 212 HAVE_LIST="
 213     ${ARCH_EXT_LIST}
 214     vpx_ports
 215     stdint_h
 216     alt_tree_layout
 217     pthread_h
 218     sys_mman_h
 219     unistd_h
 220 "
 221 CONFIG_LIST="
 222     external_build
 223     install_docs
 224     install_bins
 225     install_libs
 226     install_srcs
 227     debug
 228     gprof
 229     gcov
 230     rvct
 231     gcc
 232     msvs
 233     pic
 234     big_endian
 235
 236     codec_srcs
 237     debug_libs
 238     fast_unaligned
 239     mem_manager
 240     mem_tracker
 241     mem_checks
 242     md5
 243
 244     dequant_tokens
 245     dc_recon
 246     runtime_cpu_detect
 247     postproc
 248     multithread
 249     internal_stats
 250     ${CODECS}
 251     ${CODEC_FAMILIES}
 252     encoders
 253     decoders
 254     static_msvcrt
 255     spatial_resampling
 256     realtime_only
 257     error_concealment
 258     shared
 259     static
 260     small
 261     postproc_visualizer
 262     os_support
 263     unit_tests
 264 "
 265 CMDLINE_SELECT="
 266     extra_warnings
 267     werror
 268     install_docs
 269     install_bins
 270     install_libs
 271     install_srcs
 272     debug
 273     gprof
 274     gcov
 275     pic
 276     optimizations
 277     ccache
 278     runtime_cpu_detect
 279
 280     libs
 281     examples
 282     libc
 283     as
 284     fast_unaligned
 285     codec_srcs
 286     debug_libs
 287     md5
 288
 289     dequant_tokens
 290     dc_recon
 291     postproc
 292     multithread
 293     internal_stats
 294     ${CODECS}
 295     ${CODEC_FAMILIES}
 296     static_msvcrt
 297     mem_tracker
 298     spatial_resampling
 299     realtime_only
 300     error_concealment
 301     shared
 302     static
 303     small
 304     postproc_visualizer
 305     unit_tests
 306 "
 307
 308 process_cmdline() {
 309     for opt do
 310         optval="${opt#*=}"
 311         case "$opt" in
 312         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 313         *) process_common_cmdline "$opt"
 314         ;;
 315         esac
 316     done
 317 }
 318
 319 post_process_cmdline() {
 320     local c
 321
 322     # If the codec family is disabled, disable all components of that family.
 323     # If the codec family is enabled, enable all components of that family.
 324     log_echo "Configuring selected codecs"
 325     for c in ${CODECS}; do
 326         disabled ${c%%_*} && disable ${c}
 327         enabled ${c%%_*} && enable ${c}
 328     done
 329
 330     # Enable all detected codecs, if they haven't been disabled
 331     for c in ${CODECS}; do soft_enable $c; done
 332
 333     # Enable the codec family if any component of that family is enabled
 334     for c in ${CODECS}; do
 335         enabled $c && enable ${c%_*}
 336     done
 337
 338     # Set the {en,de}coders variable if any algorithm in that class is enabled
 339     for c in ${CODECS}; do
 340         enabled ${c} && enable ${c##*_}s
 341     done
 342 }
 343
 344
 345 process_targets() {
 346     enabled child || write_common_config_banner
 347     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 348
 349     # TODO: add host tools target (obj_int_extract, etc)
 350
 351     # For fat binaries, call configure recursively to configure for each
 352     # binary architecture to be included.
 353     if enabled universal; then
 354         # Call configure (ourselves) for each subarchitecture
 355         for arch in $fat_bin_archs; do
 356             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 357         done
 358     fi
 359
 360     # The write_common_config (config.mk) logic is deferred until after the
 361     # recursive calls to configure complete, becuase we want our universal
 362     # targets to be executed last.
 363     write_common_config_targets
 364     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 365
 366     # Calculate the default distribution name, based on the enabled features
 367     local cf
 368     local DIST_DIR=vpx
 369     for cf in $CODEC_FAMILIES; do
 370         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 371             DIST_DIR="${DIST_DIR}-${cf}"
 372         elif enabled ${cf}_encoder; then
 373             DIST_DIR="${DIST_DIR}-${cf}cx"
 374         elif enabled ${cf}_decoder; then
 375             DIST_DIR="${DIST_DIR}-${cf}dx"
 376         fi
 377     done
 378     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 379     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 380     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 381     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 382     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 383     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 384     case "${tgt_os}" in
 385     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 386           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 387           ;;
 388     esac
 389     if [ -f "${source_path}/build/make/version.sh" ]; then
 390         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 391         DIST_DIR="${DIST_DIR}-${ver}"
 392         VERSION_STRING=${ver}
 393         ver=${ver%%-*}
 394         VERSION_PATCH=${ver##*.}
 395         ver=${ver%.*}
 396         VERSION_MINOR=${ver##*.}
 397         ver=${ver#v}
 398         VERSION_MAJOR=${ver%.*}
 399     fi
 400     enabled child || cat <<EOF >> config.mk
 401
 402 PREFIX=${prefix}
 403 ifeq (\$(MAKECMDGOALS),dist)
 404 DIST_DIR?=${DIST_DIR}
 405 else
 406 DIST_DIR?=\$(DESTDIR)${prefix}
 407 endif
 408 LIBSUBDIR=${libdir##${prefix}/}
 409
 410 VERSION_STRING=${VERSION_STRING}
 411
 412 VERSION_MAJOR=${VERSION_MAJOR}
 413 VERSION_MINOR=${VERSION_MINOR}
 414 VERSION_PATCH=${VERSION_PATCH}
 415
 416 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 417 EOF
 418     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 419
 420     #
 421     # Write makefiles for all enabled targets
 422     #
 423     for tgt in libs examples docs solution; do
 424         local tgt_fn="$tgt-$toolchain.mk"
 425
 426         if enabled $tgt; then
 427             echo "Creating makefiles for ${toolchain} ${tgt}"
 428             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 429             #write_${tgt}_config
 430         fi
 431     done
 432
 433 }
 434
 435 process_detect() {
 436     if enabled shared; then
 437         # Can only build shared libs on a subset of platforms. Doing this check
 438         # here rather than at option parse time because the target auto-detect
 439         # magic happens after the command line has been parsed.
 440         enabled linux || die "--enable-shared only supported on ELF for now"
 441     fi
 442     if [ -z "$CC" ]; then
 443         echo "Bypassing toolchain for environment detection."
 444         enable external_build
 445         check_header() {
 446             log fake_check_header "$@"
 447             header=$1
 448             shift
 449             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 450             disable $var
 451             case $header in
 452                 stdio.h)
 453                     true;
 454                 ;;
 455                 *)
 456                     local result=false
 457                     for d in "$@"; do
 458                         [ -f "${d##-I}/$header" ] && result=true && break
 459                     done
 460                     ${result:-true}
 461             esac && enable $var
 462         }
 463         check_ld() {
 464             true
 465         }
 466     fi
 467     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 468     check_ld <<EOF || die "Toolchain is unable to link executables"
 469 int main(void) {return 0;}
 470 EOF
 471     # check system headers
 472     check_header stdint.h
 473     check_header pthread.h
 474     check_header sys/mman.h
 475
 476     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 477 }
 478
 479 process_toolchain() {
 480     process_common_toolchain
 481
 482     # Handle universal binaries for this architecture
 483     case $toolchain in
 484         universal-darwin*)
 485             local darwin_ver=${tgt_os##darwin}
 486             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 487
 488             # Intel
 489             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 490             if [ $darwin_ver -gt 8 ]; then
 491                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 492             fi
 493             ;;
 494     esac
 495
 496
 497     # Enable some useful compiler flags
 498     if enabled gcc; then
 499         enabled werror && check_add_cflags -Werror
 500         check_add_cflags -Wall
 501         check_add_cflags -Wdeclaration-after-statement
 502         check_add_cflags -Wdisabled-optimization
 503         check_add_cflags -Wpointer-arith
 504         check_add_cflags -Wtype-limits
 505         check_add_cflags -Wcast-qual
 506         enabled extra_warnings || check_add_cflags -Wno-unused-function
 507     fi
 508
 509     if enabled icc; then
 510         enabled werror && check_add_cflags -Werror
 511         check_add_cflags -Wall
 512         check_add_cflags -Wpointer-arith
 513
 514         # ICC has a number of floating point optimizations that we disable
 515         # in favor of deterministic output WRT to other compilers
 516         add_cflags -fp-model precise
 517     fi
 518
 519     # Enable extra, harmless warnings. These might provide additional insight
 520     # to what the compiler is doing and why, but in general, but they shouldn't
 521     # be treated as fatal, even if we're treating warnings as errors.
 522     GCC_EXTRA_WARNINGS="
 523         -Wdisabled-optimization
 524         -Winline
 525     "
 526     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 527     RVCT_EXTRA_WARNINGS="
 528         --remarks
 529     "
 530     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 531     if enabled extra_warnings; then
 532         for w in ${EXTRA_WARNINGS}; do
 533             check_add_cflags ${w}
 534             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 535         done
 536     fi
 537
 538     # ccache only really works on gcc toolchains
 539     enabled gcc || soft_disable ccache
 540     if enabled mips; then
 541         enable dequant_tokens
 542         enable dc_recon
 543     fi
 544
 545     # Enable the postbuild target if building for visual studio.
 546     case "$tgt_cc" in
 547         vs*) enable msvs
 548              enable solution
 549              vs_version=${tgt_cc##vs}
 550              all_targets="${all_targets} solution"
 551         ;;
 552     esac
 553
 554     # Other toolchain specific defaults
 555     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 556
 557     if enabled postproc_visualizer; then
 558         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 559     fi
 560 }
 561
 562
 563 ##
 564 ## END APPLICATION SPECIFIC CONFIGURATION
 565 ##
 566 CONFIGURE_ARGS="$@"
 567 process "$@"
 568 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 569 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 570 static const char* const cfg = "$CONFIGURE_ARGS";
 571 const char *vpx_codec_build_config(void) {return cfg;}
 572 EOF