configure

   1 #!/bin/bash
   2
   3 #----------------------------------------------------------------------------
   4 #  configure script for L-SMASH
   5 #
   6 #  Currently, this script is considering only GCC.
   7 #  If you want to use other compiler based on C99 standerd (e.g. llvm),
   8 #  we just say to you "patches welcome."
   9 #----------------------------------------------------------------------------
  10
  11 if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
  12 cat << EOF
  13 Usage: ./configure [options]
  14
  15 options:
  16   -h, --help               print this message
  17
  18   --prefix=PREFIX          install architecture-independent files into PREFIX
  19                            [/usr/local]
  20   --exec-prefix=EPREFIX    install architecture-dependent files into EPREFIX
  21                            [PREFIX]
  22   --bindir=DIR             install binaries in DIR [EPREFIX/bin]
  23   --libdir=DIR             install libs in DIR [EPREFIX/lib]
  24   --includedir=DIR         install headers in DIR [PREFIX/include]
  25
  26   --cc=CC                  use a defined compiler for compilation and linking [gcc]
  27   --target-os=OS           build programs to run on OS [auto]
  28   --cross-prefix=PREFIX    use PREFIX for compilation tools [none]
  29   --sysroot=DIR            specify toolchain's directory [none]
  30   --disable-static         doesn't compile static library
  31   --enable-shared          also compile shared library besides static library
  32   --enable-debug           compile with debug symbols and never strip
  33
  34   --extra-cflags=XCFLAGS   add XCFLAGS to CFLAGS
  35   --extra-ldflags=XLDFLAGS add XLDFLAGS to LDFLAGS
  36   --extra-libs=XLIBS       add XLIBS to LIBS
  37 EOF
  38 exit 1
  39 fi
  40
  41 #-----------------------------------------------------------------------------
  42
  43 error_exit()
  44 {
  45     echo error: $1
  46     exit 1
  47 }
  48
  49 #Currently, this is used only for the flag check of compiler.
  50 cc_check()
  51 {
  52     echo 'int main(void){return 0;}' > conftest.c
  53     $CC conftest.c $1 $2 -o conftest 2> /dev/null
  54     ret=$?
  55     rm -f conftest*
  56     return $ret
  57 }
  58
  59 #-----------------------------------------------------------------------------
  60
  61 rm -f config.* .depend conftest* liblsmash.pc
  62
  63
  64 echo
  65 echo generating config.mak ...
  66 echo
  67
  68
  69 SRCDIR="$(cd $(dirname $0); pwd)"
  70 test "$SRCDIR" = "$(pwd)" && SRCDIR=.
  71 test -n "$(echo $SRCDIR | grep ' ')" && \
  72     error_exit "out-of-tree builds are impossible with whitespace in source path"
  73
  74 prefix=""
  75 exec_prefix=""
  76 bindir=""
  77 libdir=""
  78 includedir=""
  79 DESTDIR=""
  80
  81 TARGET_OS=""
  82 CROSS=""
  83
  84 SYSROOT=""
  85 CC="gcc"
  86 AR="ar"
  87 LD="gcc"
  88 RANLIB="ranlib"
  89 STRIP="strip"
  90
  91 DEBUG=""
  92
  93 EXT=""
  94
  95 STATIC_NAME="liblsmash"
  96 STATIC_EXT=".a"
  97 STATICLIB="enabled"
  98
  99 SHARED_NAME="liblsmash"
 100 SHARED_EXT=".so"
 101 SHAREDLIB=""
 102 IMPLIB=""
 103
 104 TOOLS=""
 105
 106 CFLAGS="-Wshadow -Wall -std=c99 -pedantic -I. -I$SRCDIR"
 107 LDFLAGS="-L."
 108 SO_LDFLAGS='-shared -Wl,-soname,$@'
 109 LIBS="-lm"
 110
 111 DEMUXER="enabled"
 112
 113 for opt; do
 114     optarg="${opt#*=}"
 115     case "$opt" in
 116         --prefix=*)
 117             prefix="$optarg"
 118             ;;
 119         --exec-prefix=*)
 120             exec_prefix="$optarg"
 121             ;;
 122         --bindir=*)
 123             bindir="$optarg"
 124             ;;
 125         --libdir=*)
 126             libdir="$optarg"
 127             ;;
 128         --includedir=*)
 129             includedir="$optarg"
 130             ;;
 131         --destdir=*)
 132             DESTDIR="$optarg"
 133             ;;
 134         --cc=*)
 135             CC="$optarg"
 136             LD="$optarg"
 137             ;;
 138         --target-os=*)
 139             TARGET_OS="$optarg"
 140             ;;
 141         --cross-prefix=*)
 142             CROSS="$optarg"
 143             ;;
 144         --sysroot=*)
 145             CFLAGS="$CFLAGS --sysroot=$optarg"
 146             LDFLAGS="$LDFLAGS --sysroot=$optarg"
 147             ;;
 148         --disable-static)
 149             STATICLIB=""
 150             SHAREDLIB="enabled"
 151             ;;
 152         --enable-shared)
 153             SHAREDLIB="enabled"
 154             ;;
 155         --enable-debug)
 156             DEBUG="enabled"
 157             ;;
 158         --extra-cflags=*)
 159             XCFLAGS="$optarg"
 160             ;;
 161         --extra-ldflags=*)
 162             XLDFLAGS="$optarg"
 163             ;;
 164         --extra-libs=*)
 165             XLIBS="$optarg"
 166             ;;
 167         # "--disable-demuxer" is the special option only for developpers.
 168         --disable-demuxer)
 169             DEMUXER=""
 170             ;;
 171         *)
 172             error_exit "unknown option $opt"
 173             ;;
 174     esac
 175 done
 176
 177 test -n "$prefix" || prefix="/usr/local"
 178 test -n "$exec_prefix" || exec_prefix='${prefix}'
 179 test -n "$bindir" || bindir='${exec_prefix}/bin'
 180 test -n "$libdir" || libdir='${exec_prefix}/lib'
 181 test -n "$includedir" || includedir='${prefix}/include'
 182
 183
 184 CC="${CROSS}${CC}"
 185 AR="${CROSS}${AR}"
 186 LD="${CROSS}${LD}"
 187 RANLIB="${CROSS}${RANLIB}"
 188 STRIP="${CROSS}${STRIP}"
 189 for f in "$CC" "$AR" "$LD" "$RANLIB" "$STRIP"; do
 190     test -n "$(which $f 2> /dev/null)" || error_exit "$f is not executable"
 191 done
 192
 193
 194 if test -n "$TARGET_OS"; then
 195     TARGET_OS=$(echo $TARGET_OS | tr '[A-Z]' '[a-z]')
 196 else
 197     TARGET_OS=$($CC -dumpmachine | tr '[A-Z]' '[a-z]')
 198 fi
 199 case "$TARGET_OS" in
 200     *mingw*)
 201         EXT=".exe"
 202         SHARED_EXT=".dll"
 203         IMPLIB="liblsmash.dll.a"
 204         SO_LDFLAGS="-shared -Wl,--out-implib,$IMPLIB"
 205         CFLAGS="$CFLAGS -D__USE_MINGW_ANSI_STDIO=1"
 206         ;;
 207     *cygwin*)
 208         EXT=".exe"
 209         SHARED_NAME="cyglsmash"
 210         SHARED_EXT=".dll"
 211         IMPLIB="liblsmash.dll.a"
 212         SO_LDFLAGS="-shared -Wl,--out-implib,$IMPLIB"
 213         ;;
 214     *darwin*)
 215         SHARED_EXT=".dylib"
 216         SO_LDFLAGS="-dynamiclib -Wl,-undefined,suppress -Wl,-read_only_relocs,suppress -Wl,-flat_namespace"
 217         ;;
 218     *solaris*)
 219         #patches welcome
 220         SHAREDLIB=""
 221         ;;
 222     *)
 223         if test -n "$SHAREDLIB"; then
 224             CFLAGS="$CFLAGS -fPIC"
 225             LDFLAGS="$LDFLAGS -fPIC"
 226         fi
 227         ;;
 228 esac
 229
 230
 231 STATICLIBNAME="${STATIC_NAME}${STATIC_EXT}"
 232 SHAREDLIBNAME="${SHARED_NAME}${SHARED_EXT}"
 233 test -n "$STATICLIB" && STATICLIB="$STATICLIBNAME"
 234 test -n "$SHAREDLIB" && SHAREDLIB="$SHAREDLIBNAME"
 235 test -z "$STATICLIB" -a -z "$SHAREDLIB" && \
 236     error_exit "--disable-static requires --enable-shared were specified"
 237 test -z "$SHAREDLIB" && SO_LDFLAGS=""
 238
 239
 240 CFLAGS="$CFLAGS $XCFLAGS"
 241 LDFLAGS="$LDFLAGS $XLDFLAGS"
 242 LIBS="$LIBS $XLIBS"
 243
 244
 245 # In order to avoid some compiler bugs, we don't use "-O3" for the default.
 246 # "-Os" unites "-O2" and "-finline-funtions" on x86/x86_64 in the latest GCC.
 247 # As a result of taking these into consideration, we make "-Os" a rated value.
 248 # And, we don't care about architecture related options.
 249 # If you want them, set up by yourself like --extra-cflags="-O3 -march=native".
 250 if test -n "$DEBUG"; then
 251     CFLAGS="$CFLAGS -g3 -O0"
 252     STRIP=""
 253 else
 254     CFLAGS="-Os -ffast-math $CFLAGS"
 255 fi
 256
 257
 258 if ! cc_check "$CFLAGS" "$LDFLAGS"; then
 259     error_exit "invalid CFLAGS/LDFLAGS"
 260 fi
 261
 262 if cc_check "$CFLAGS -fexcess-precision=fast" "$LDFLAGS"; then
 263     CFLAGS="$CFLAGS -fexcess-precision=fast"
 264 fi
 265
 266 if cc_check "$CFLAGS" "$LDFLAGS -Wl,--large-address-aware"; then
 267     LDFLAGS="$LDFLAGS -Wl,--large-address-aware"
 268 fi
 269
 270
 271 #=============================================================================
 272 # Notation for developpers.
 273 # Be sure to modified this block when you add/delete source files.
 274 SRCS="common/alloc.c common/utils.c common/bstream.c common/list.c \
 275       common/osdep.c codecs/mp4sys.c codecs/mp4a.c codecs/dts.c codecs/a52.c \
 276       codecs/h264.c codecs/hevc.c codecs/vc1.c codecs/alac.c \
 277       codecs/description.c core/isom.c core/fragment.c core/summary.c \
 278       core/print.c core/read.c core/timeline.c core/chapter.c core/meta.c \
 279       core/write.c core/box.c"
 280
 281 TOOLS_ALL="muxer remuxer boxdumper timelineeditor"
 282 TOOLS_NAME=""
 283 SRC_TOOLS="cli/cli.c cli/importer.c"
 284 if test -n "$DEMUXER"; then
 285     CFLAGS="$CFLAGS -DLSMASH_DEMUXER_ENABLED"
 286     TOOLS="$TOOLS_ALL"
 287 else
 288     TOOLS="muxer"
 289 fi
 290 for tool in $TOOLS; do
 291     SRC_TOOLS="$SRC_TOOLS cli/${tool}.c"
 292     TOOLS_NAME="$TOOLS_NAME cli/${tool}${EXT}"
 293 done
 294 #=============================================================================
 295
 296 pushd $SRCDIR
 297 REV="$(git rev-list HEAD 2> /dev/null | wc -l)"
 298 HASH="$(git describe --always 2> /dev/null)"
 299 popd
 300 cat >> config.h << EOF
 301 #define LSMASH_REV "$REV"
 302 #define LSMASH_GIT_HASH "$HASH"
 303 EOF
 304
 305
 306 cat >> liblsmash.pc << EOF
 307 prefix=$prefix
 308 exec_prefix=$exec_prefix
 309 libdir=$libdir
 310 includedir=$includedir
 311
 312 Name: liblsmash
 313 Description: Loyal to Spec of MPEG4, and Ad-hock Simple Hackwork
 314 Version: rev.$REV
 315 Requires:
 316 URL: http://code.google.com/p/l-smash/
 317 Libs: -L${libdir} -llsmash $LIBS
 318 Libs.private:
 319 Cflags: -I${includedir}
 320 EOF
 321
 322
 323 cat >> config.mak << EOF
 324 SRCDIR = $SRCDIR
 325 DESTDIR = $DESTDIR
 326 prefix = $prefix
 327 exec_prefix = $exec_prefix
 328 bindir = $bindir
 329 libdir = $libdir
 330 includedir = $includedir
 331 CC = $CC
 332 AR = $AR
 333 LD = $LD
 334 RANLIB = $RANLIB
 335 STRIP = $STRIP
 336 STATICLIBNAME = $STATICLIBNAME
 337 STATICLIB = $STATICLIB
 338 SHAREDLIBNAME = $SHAREDLIBNAME
 339 SHAREDLIB = $SHAREDLIB
 340 IMPLIB = $IMPLIB
 341 CFLAGS = $CFLAGS
 342 LDFLAGS = $LDFLAGS
 343 SO_LDFLAGS = $SO_LDFLAGS
 344 LIBS = $LIBS
 345 EOF
 346
 347 cat config.mak
 348
 349 cat >> config.mak << EOF
 350 SRCS = $SRCS
 351 SRC_TOOLS = $SRC_TOOLS
 352 TOOLS_ALL = $TOOLS_ALL
 353 TOOLS = $TOOLS_NAME
 354 EOF
 355
 356
 357 for tool in $TOOLS; do
 358     cat >> config.mak2 << EOF
 359 cli/${tool}${EXT}: cli/${tool}.o cli/cli.o cli/importer.o $STATICLIB $SHAREDLIB
 360         \$(CC) \$(CFLAGS) \$(LDFLAGS) -o \$@ \$< cli/cli.o cli/importer.o -llsmash \$(LIBS)
 361         -@ \$(if \$(STRIP), \$(STRIP) \$@)
 362
 363 EOF
 364 done
 365
 366
 367 test "$SRCDIR" = "." || ln -sf ${SRCDIR}/Makefile .
 368 mkdir -p cli codecs common core
 369
 370
 371 cat << EOF
 372
 373 configure finished
 374
 375   type 'make'             : compile library and tools
 376   type 'make install'     : install all into system
 377   type 'make lib'         : compile library only
 378   type 'make install-lib' : install library and header into system
 379
 380 EOF
 381
 382 exit 0