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