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