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_arm_asm_detok}         assembly version of the detokenizer (ARM platforms only)
  44   ${toggle_postproc_visualizer}   macro block / block level visualizers
  45
  46 Codecs:
  47   Codecs can be selectively enabled or disabled individually, or by family:
  48       --disable-<codec>
  49   is equivalent to:
  50       --disable-<codec>-encoder
  51       --disable-<codec>-decoder
  52
  53   Codecs available in this distribution:
  54 EOF
  55 #restore editor state '
  56
  57     local family;
  58     local last_family;
  59     local c;
  60     local str;
  61     for c in ${CODECS}; do
  62         family=${c%_*}
  63         if [ "${family}" != "${last_family}" ]; then
  64             [ -z "${str}" ] || echo "${str}"
  65             str="$(printf '    %10s:' ${family})"
  66         fi
  67         str="${str} $(printf '%10s' ${c#*_})"
  68         last_family=${family}
  69     done
  70     echo "${str}"
  71     show_help_post
  72 }
  73
  74 ##
  75 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  76 ##
  77
  78 # all_platforms is a list of all supported target platforms. Maintain
  79 # alphabetically by architecture, generic-gnu last.
  80 all_platforms="${all_platforms} armv5te-linux-rvct"
  81 all_platforms="${all_platforms} armv5te-linux-gcc"
  82 all_platforms="${all_platforms} armv5te-symbian-gcc"
  83 all_platforms="${all_platforms} armv5te-wince-vs8"
  84 all_platforms="${all_platforms} armv6-darwin-gcc"
  85 all_platforms="${all_platforms} armv6-linux-rvct"
  86 all_platforms="${all_platforms} armv6-linux-gcc"
  87 all_platforms="${all_platforms} armv6-symbian-gcc"
  88 all_platforms="${all_platforms} armv6-wince-vs8"
  89 all_platforms="${all_platforms} iwmmxt-linux-rvct"
  90 all_platforms="${all_platforms} iwmmxt-linux-gcc"
  91 all_platforms="${all_platforms} iwmmxt-wince-vs8"
  92 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
  93 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
  94 all_platforms="${all_platforms} iwmmxt2-wince-vs8"
  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} mips32-linux-gcc"
  99 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 100 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 101 all_platforms="${all_platforms} ppc32-linux-gcc"
 102 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 103 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 104 all_platforms="${all_platforms} ppc64-linux-gcc"
 105 all_platforms="${all_platforms} sparc-solaris-gcc"
 106 all_platforms="${all_platforms} x86-darwin8-gcc"
 107 all_platforms="${all_platforms} x86-darwin8-icc"
 108 all_platforms="${all_platforms} x86-darwin9-gcc"
 109 all_platforms="${all_platforms} x86-darwin9-icc"
 110 all_platforms="${all_platforms} x86-linux-gcc"
 111 all_platforms="${all_platforms} x86-linux-icc"
 112 all_platforms="${all_platforms} x86-solaris-gcc"
 113 all_platforms="${all_platforms} x86-win32-gcc"
 114 all_platforms="${all_platforms} x86-win32-vs7"
 115 all_platforms="${all_platforms} x86-win32-vs8"
 116 all_platforms="${all_platforms} x86-win32-vs9"
 117 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 118 all_platforms="${all_platforms} x86_64-linux-gcc"
 119 all_platforms="${all_platforms} x86_64-linux-icc"
 120 all_platforms="${all_platforms} x86_64-solaris-gcc"
 121 all_platforms="${all_platforms} x86_64-win64-vs8"
 122 all_platforms="${all_platforms} x86_64-win64-vs9"
 123 all_platforms="${all_platforms} universal-darwin8-gcc"
 124 all_platforms="${all_platforms} universal-darwin9-gcc"
 125 all_platforms="${all_platforms} generic-gnu"
 126
 127 # all_targets is a list of all targets that can be configured
 128 # note that these should be in dependency order for now.
 129 all_targets="libs examples docs"
 130
 131 # all targets available are enabled, by default.
 132 for t in ${all_targets}; do
 133     [ -f ${source_path}/${t}.mk ] && enable ${t}
 134 done
 135
 136 # check installed doxygen version
 137 doxy_version=$(doxygen --version 2>/dev/null)
 138 doxy_major=${doxy_version%%.*}
 139 if [ ${doxy_major:-0} -ge 1 ]; then
 140     doxy_version=${doxy_version#*.}
 141     doxy_minor=${doxy_version%%.*}
 142     doxy_patch=${doxy_version##*.}
 143
 144     [ $doxy_major -gt 1 ] && enable doxygen
 145     [ $doxy_minor -gt 5 ] && enable doxygen
 146     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 147 fi
 148
 149 # install everything except the sources, by default. sources will have
 150 # to be enabled when doing dist builds, since that's no longer a common
 151 # case.
 152 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 153 enable install_bins
 154 enable install_libs
 155
 156 enable optimizations
 157 enable fast_unaligned #allow unaligned accesses, if supported by hw
 158 enable md5
 159 enable spatial_resampling
 160 enable multithread
 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 "
 215 CONFIG_LIST="
 216     external_build
 217     install_docs
 218     install_bins
 219     install_libs
 220     install_srcs
 221     debug
 222     gprof
 223     gcov
 224     rvct
 225     gcc
 226     msvs
 227     pic
 228     big_endian
 229
 230     codec_srcs
 231     debug_libs
 232     fast_unaligned
 233     mem_manager
 234     mem_tracker
 235     mem_checks
 236     md5
 237
 238     dequant_tokens
 239     dc_recon
 240     runtime_cpu_detect
 241     postproc
 242     multithread
 243     psnr
 244     ${CODECS}
 245     ${CODEC_FAMILIES}
 246     encoders
 247     decoders
 248     static_msvcrt
 249     spatial_resampling
 250     realtime_only
 251     shared
 252     small
 253     arm_asm_detok
 254     postproc_visualizer
 255 "
 256 CMDLINE_SELECT="
 257     extra_warnings
 258     werror
 259     install_docs
 260     install_bins
 261     install_libs
 262     install_srcs
 263     debug
 264     gprof
 265     gcov
 266     pic
 267     optimizations
 268     ccache
 269     runtime_cpu_detect
 270
 271     libs
 272     examples
 273     libc
 274     as
 275     fast_unaligned
 276     codec_srcs
 277     debug_libs
 278     md5
 279
 280     dequant_tokens
 281     dc_recon
 282     postproc
 283     multithread
 284     psnr
 285     ${CODECS}
 286     ${CODEC_FAMILIES}
 287     static_msvcrt
 288     mem_tracker
 289     spatial_resampling
 290     realtime_only
 291     shared
 292     small
 293     arm_asm_detok
 294     postproc_visualizer
 295 "
 296
 297 process_cmdline() {
 298     for opt do
 299         optval="${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}-${ver}"
 381         ver=${ver%%-*}
 382         VERSION_PATCH=${ver##*.}
 383         ver=${ver%.*}
 384         VERSION_MINOR=${ver##*.}
 385         ver=${ver#v}
 386         VERSION_MAJOR=${ver%.*}
 387     fi
 388     enabled child || cat <<EOF >> config.mk
 389 ifeq (\$(MAKECMDGOALS),dist)
 390 DIST_DIR?=${DIST_DIR}
 391 else
 392 DIST_DIR?=\$(DESTDIR)${prefix}
 393 endif
 394 LIBSUBDIR=${libdir##${prefix}/}
 395
 396 VERSION_MAJOR=${VERSION_MAJOR}
 397 VERSION_MINOR=${VERSION_MINOR}
 398 VERSION_PATCH=${VERSION_PATCH}
 399
 400 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 401 EOF
 402     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 403
 404     #
 405     # Write makefiles for all enabled targets
 406     #
 407     for tgt in libs examples docs solution; do
 408         local tgt_fn="$tgt-$toolchain.mk"
 409
 410         if enabled $tgt; then
 411             echo "Creating makefiles for ${toolchain} ${tgt}"
 412             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 413             #write_${tgt}_config
 414         fi
 415     done
 416
 417 }
 418
 419 process_detect() {
 420     if enabled shared; then
 421         # Can only build shared libs on a subset of platforms. Doing this check
 422         # here rather than at option parse time because the target auto-detect
 423         # magic happens after the command line has been parsed.
 424         enabled linux || die "--enable-shared only supported on ELF for now"
 425     fi
 426     if [ -z "$CC" ]; then
 427         echo "Bypassing toolchain for environment detection."
 428         enable external_build
 429         check_header() {
 430             log fake_check_header "$@"
 431             header=$1
 432             shift
 433             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 434             disable $var
 435             case $header in
 436                 stdio.h)
 437                     true;
 438                 ;;
 439                 *)
 440                     local result=false
 441                     for d in "$@"; do
 442                         [ -f "${d##-I}/$header" ] && result=true && break
 443                     done
 444                     ${result:-true}
 445             esac && enable $var
 446         }
 447         check_ld() {
 448             true
 449         }
 450     fi
 451     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 452     check_ld <<EOF || die "Toolchain is unable to link executables"
 453 int main(void) {return 0;}
 454 EOF
 455     # check system headers
 456     check_header stdint.h
 457     check_header pthread.h
 458     check_header sys/mman.h
 459
 460     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 461 }
 462
 463 process_toolchain() {
 464     process_common_toolchain
 465
 466     # Handle universal binaries for this architecture
 467     case $toolchain in
 468         universal-darwin*)
 469             local darwin_ver=${tgt_os##darwin}
 470             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 471
 472             # Intel
 473             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 474             if [ $darwin_ver -gt 8 ]; then
 475                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 476             fi
 477             ;;
 478     esac
 479
 480
 481     # Enable some useful compiler flags
 482     if enabled gcc; then
 483         enabled werror && check_add_cflags -Werror
 484         check_add_cflags -Wall
 485         check_add_cflags -Wdeclaration-after-statement
 486         check_add_cflags -Wdisabled-optimization
 487         check_add_cflags -Wpointer-arith
 488         check_add_cflags -Wtype-limits
 489         check_add_cflags -Wcast-qual
 490         enabled extra_warnings || check_add_cflags -Wno-unused
 491     fi
 492
 493     if enabled icc; then
 494         enabled werror && check_add_cflags -Werror
 495         check_add_cflags -Wall
 496         check_add_cflags -Wpointer-arith
 497
 498         # ICC has a number of floating point optimizations that we disable
 499         # in favor of deterministic output WRT to other compilers
 500         add_cflags -fp-model precise
 501     fi
 502
 503     # Enable extra, harmless warnings. These might provide additional insight
 504     # to what the compiler is doing and why, but in general, but they shouldn't
 505     # be treated as fatal, even if we're treating warnings as errors.
 506     GCC_EXTRA_WARNINGS="
 507         -Wdisabled-optimization
 508         -Winline
 509     "
 510     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 511     RVCT_EXTRA_WARNINGS="
 512         --remarks
 513     "
 514     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 515     if enabled extra_warnings; then
 516         for w in ${EXTRA_WARNINGS}; do
 517             check_add_cflags ${w}
 518             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 519         done
 520     fi
 521
 522     # ccache only really works on gcc toolchains
 523     enabled gcc || soft_disable ccache
 524     if enabled mips; then
 525         enable dequant_tokens
 526         enable dc_recon
 527     fi
 528
 529     # Enable the postbuild target if building for visual studio.
 530     case "$tgt_cc" in
 531         vs*) enable msvs
 532              enable solution
 533              vs_version=${tgt_cc##vs}
 534              all_targets="${all_targets} solution"
 535         ;;
 536     esac
 537
 538     # Other toolchain specific defaults
 539     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 540
 541     enabled postproc_visualizer && {enabled postproc \
 542         || die "postproc_visualizer requires postproc to be enabled"}
 543 }
 544
 545
 546 ##
 547 ## END APPLICATION SPECIFIC CONFIGURATION
 548 ##
 549 CONFIGURE_ARGS="$@"
 550 process "$@"
 551 cat <<EOF > ${BUILD_PFX}vpx_config.c
 552 static const char* const cfg = "$CONFIGURE_ARGS";
 553 const char *vpx_codec_build_config(void) {return cfg;}
 554 EOF