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