configure.ac

   1 dnl Process this file with autoconf to produce a configure script
   2
   3 dnl ------------------------------------------------
   4 dnl Initialization and Versioning
   5 dnl ------------------------------------------------
   6
   7
   8 AC_INIT([libvorbis],[1.2.3],[vorbis-dev@xiph.org])
   9
  10 AC_CONFIG_SRCDIR([lib/mdct.c])
  11
  12 AC_CANONICAL_TARGET([])
  13
  14 AM_INIT_AUTOMAKE($PACKAGE_NAME,$PACKAGE_VERSION)
  15 AM_MAINTAINER_MODE
  16 AM_CONFIG_HEADER([config.h])
  17
  18 dnl Add parameters for aclocal
  19 AC_SUBST(ACLOCAL_AMFLAGS, "-I m4")
  20
  21 dnl Library versioning
  22 dnl - library source changed -> increment REVISION
  23 dnl - interfaces added/removed/changed -> increment CURRENT, REVISION = 0
  24 dnl - interfaces added -> increment AGE
  25 dnl - interfaces removed -> AGE = 0
  26
  27 V_LIB_CURRENT=4
  28 V_LIB_REVISION=3
  29 V_LIB_AGE=4
  30
  31 VF_LIB_CURRENT=6
  32 VF_LIB_REVISION=2
  33 VF_LIB_AGE=3
  34
  35 VE_LIB_CURRENT=2
  36 VE_LIB_REVISION=6
  37 VE_LIB_AGE=0
  38
  39 AC_SUBST(V_LIB_CURRENT)
  40 AC_SUBST(V_LIB_REVISION)
  41 AC_SUBST(V_LIB_AGE)
  42 AC_SUBST(VF_LIB_CURRENT)
  43 AC_SUBST(VF_LIB_REVISION)
  44 AC_SUBST(VF_LIB_AGE)
  45 AC_SUBST(VE_LIB_CURRENT)
  46 AC_SUBST(VE_LIB_REVISION)
  47 AC_SUBST(VE_LIB_AGE)
  48
  49 dnl --------------------------------------------------
  50 dnl Check for programs
  51 dnl --------------------------------------------------
  52
  53 dnl save $CFLAGS since AC_PROG_CC likes to insert "-g -O2"
  54 dnl if $CFLAGS is blank
  55 cflags_save="$CFLAGS"
  56 AC_PROG_CC
  57 AC_PROG_CPP
  58 CFLAGS="$cflags_save"
  59
  60 AC_C_INLINE
  61
  62 AC_LIBTOOL_WIN32_DLL
  63 AC_PROG_LIBTOOL
  64 AM_PROG_CC_C_O
  65
  66 dnl Check for doxygen
  67 HAVE_DOXYGEN=false
  68 if test "x$enable_docs" = xyes; then
  69   AC_CHECK_PROG(HAVE_DOXYGEN, doxygen, true, false)
  70   if test $HAVE_DOXYGEN = "false"; then
  71     AC_MSG_WARN([*** doxygen not found, API documentation will not be built])
  72   fi
  73 fi
  74 AM_CONDITIONAL(HAVE_DOXYGEN,$HAVE_DOXYGEN)
  75
  76 dnl latex tools for the specification document
  77 AC_ARG_ENABLE(docs,
  78         AC_HELP_STRING([--enable-docs], [build the documentation]))
  79
  80 if test "x$enable_docs" = xyes; then
  81   AC_CHECK_PROGS([PDFLATEX], pdflatex, [/bin/false])
  82   AC_CHECK_PROGS([HTLATEX], htlatex, [/bin/false])
  83   if test "x$PDFLATEX" = x/bin/false || test "x$HTLATEX" = x/bin/false; then
  84     enable_docs=no
  85     AC_MSG_WARN([Documentation will not be built!])
  86   fi
  87 fi
  88
  89 AM_CONDITIONAL(BUILD_DOCS, [test "x$enable_docs" = xyes])
  90
  91 dnl --------------------------------------------------
  92 dnl Set build flags based on environment
  93 dnl --------------------------------------------------
  94
  95 dnl Set some target options
  96
  97 cflags_save="$CFLAGS"
  98 if test -z "$GCC"; then
  99         case $host in
 100         *-*-irix*)
 101                 dnl If we're on IRIX, we wanna use cc even if gcc
 102                 dnl is there (unless the user has overriden us)...
 103                 if test -z "$CC"; then
 104                         CC=cc
 105                 fi
 106                 DEBUG="-g -signed"
 107                 CFLAGS="-O2 -w -signed"
 108                 PROFILE="-p -g3 -O2 -signed" ;;
 109         sparc-sun-solaris*)
 110                 DEBUG="-v -g"
 111                 CFLAGS="-xO4 -fast -w -fsimple -native -xcg92"
 112                 PROFILE="-v -xpg -g -xO4 -fast -native -fsimple -xcg92 -Dsuncc" ;;
 113         *)
 114                 DEBUG="-g"
 115                 CFLAGS="-O"
 116                 PROFILE="-g -p" ;;
 117         esac
 118 else
 119
 120         AC_MSG_CHECKING([GCC version])
 121         GCC_VERSION=`$CC -dumpversion`
 122         AC_MSG_RESULT([$GCC_VERSION])
 123         case $host in
 124         *86-*-linux*)
 125                 DEBUG="-g -Wall -Wextra -D_REENTRANT -D__NO_MATH_INLINES -fsigned-char"
 126                 CFLAGS="-O20 -ffast-math -mno-ieee-fp -D_REENTRANT -fsigned-char"
 127 #               PROFILE="-Wall -Wextra -pg -g -O20 -ffast-math -D_REENTRANT -fsigned-char -fno-inline -static"
 128                 PROFILE="-Wall -Wextra -pg -g -O20 -ffast-math -mno-ieee-fp -D_REENTRANT -fsigned-char -fno-inline"
 129
 130                 # glibc < 2.1.3 has a serious FP bug in the math inline header
 131                 # that will cripple Vorbis.  Look to see if the magic FP stack
 132                 # clobber is missing in the mathinline header, thus indicating
 133                 # the buggy version
 134
 135                 AC_EGREP_CPP(log10.*fldlg2.*fxch,[
 136                                 #define __LIBC_INTERNAL_MATH_INLINES 1
 137                                 #define __OPTIMIZE__
 138                                 #include <math.h>
 139                                 ],bad=maybe,bad=no)
 140                 if test ${bad} = "maybe" ;then
 141                       AC_EGREP_CPP(log10.*fldlg2.*fxch.*st\([[0123456789]]*\),
 142                                         [
 143                                         #define __LIBC_INTERNAL_MATH_INLINES 1
 144                                         #define __OPTIMIZE__
 145                                         #include <math.h>
 146                                         ],bad=no,bad=yes)
 147                 fi
 148                 if test ${bad} = "yes" ;then
 149  AC_MSG_WARN([                                                        ])
 150  AC_MSG_WARN([********************************************************])
 151  AC_MSG_WARN([* The glibc headers on this machine have a serious bug *])
 152  AC_MSG_WARN([* in /usr/include/bits/mathinline.h  This bug affects  *])
 153  AC_MSG_WARN([* all floating point code, not just Ogg, built on this *])
 154  AC_MSG_WARN([* machine.  Upgrading to glibc 2.1.3 is strongly urged *])
 155  AC_MSG_WARN([* to correct the problem.  Note that upgrading glibc   *])
 156  AC_MSG_WARN([* will not fix any previously built programs; this is  *])
 157  AC_MSG_WARN([* a compile-time time bug.                             *])
 158  AC_MSG_WARN([* To work around the problem for this build of Ogg,    *])
 159  AC_MSG_WARN([* autoconf is disabling all math inlining.  This will  *])
 160  AC_MSG_WARN([* hurt Ogg performace but is necessary for an Ogg that *])
 161  AC_MSG_WARN([* will actually work.  Once glibc is upgraded, rerun   *])
 162  AC_MSG_WARN([* configure and make to build with inlining.           *])
 163  AC_MSG_WARN([********************************************************])
 164  AC_MSG_WARN([                                                        ])
 165
 166                 CFLAGS=${OPT}" -D__NO_MATH_INLINES"
 167                 PROFILE=${PROFILE}" -D__NO_MATH_INLINES"
 168                 fi;;
 169         powerpc-*-linux*)
 170                 DEBUG="-g -Wall -Wextra -D_REENTRANT -D__NO_MATH_INLINES"
 171                 CFLAGS="-O3 -Wall -Wextra -ffast-math -mfused-madd -mcpu=750 -D_REENTRANT"
 172                 PROFILE="-pg -g -O3 -ffast-math -mfused-madd -mcpu=750 -D_REENTRANT";;
 173         *-*-linux*)
 174                 DEBUG="-g -Wall -Wextra -D_REENTRANT -D__NO_MATH_INLINES -fsigned-char"
 175                 CFLAGS="-O20 -Wall -Wextra -ffast-math -D_REENTRANT -fsigned-char"
 176                 PROFILE="-pg -g -O20 -ffast-math -D_REENTRANT -fsigned-char";;
 177         sparc-sun-*)
 178                 sparc_cpu=""
 179                 AC_MSG_CHECKING([if gcc supports -mv8])
 180                 old_cflags="$CFLAGS"
 181                 CFLAGS="$CFLAGS -mv8"
 182                 AC_TRY_COMPILE(, [return 0;], [
 183                         AC_MSG_RESULT([yes])
 184                         sparc_cpu="-mv8"
 185                 ])
 186                 CFLAGS="$old_cflags"
 187                 DEBUG="-g -Wall -Wextra -D__NO_MATH_INLINES -fsigned-char $sparc_cpu"
 188                 CFLAGS="-O20 -Wall -Wextra -ffast-math -D__NO_MATH_INLINES -fsigned-char $sparc_cpu"
 189                 PROFILE="-pg -g -O20 -D__NO_MATH_INLINES -fsigned-char $sparc_cpu" ;;
 190         *-*-darwin*)
 191                 DEBUG="-DDARWIN -fno-common -force_cpusubtype_ALL -Wall -g -O0 -fsigned-char"
 192                 CFLAGS="-DDARWIN -fno-common -force_cpusubtype_ALL -Wall -g -O4 -ffast-math -fsigned-char"
 193                 PROFILE="-DDARWIN -fno-common -force_cpusubtype_ALL -Wall -g -pg -O4 -ffast-math -fsigned-char";;
 194         *-*-os2*)
 195                 # Use -W instead of -Wextra because gcc on OS/2 is an old version.
 196                 DEBUG="-g -Wall -W -D_REENTRANT -D__NO_MATH_INLINES -fsigned-char"
 197                 CFLAGS="-O20 -Wall -W -ffast-math -D_REENTRANT -fsigned-char"
 198                 PROFILE="-pg -g -O20 -ffast-math -D_REENTRANT -fsigned-char";;
 199         *)
 200                 DEBUG="-g -Wall -Wextra -D__NO_MATH_INLINES -fsigned-char"
 201                 CFLAGS="-O20 -Wall -Wextra -D__NO_MATH_INLINES -fsigned-char"
 202                 PROFILE="-O20 -g -pg -D__NO_MATH_INLINES -fsigned-char" ;;
 203         esac
 204
 205         AC_ADD_CFLAGS([-Wdeclaration-after-statement])
 206 fi
 207 CFLAGS="$CFLAGS $cflags_save"
 208
 209 dnl --------------------------------------------------
 210 dnl Check for headers
 211 dnl --------------------------------------------------
 212
 213 AC_CHECK_HEADER(memory.h,CFLAGS="$CFLAGS -DUSE_MEMORY_H",:)
 214
 215 dnl --------------------------------------------------
 216 dnl Check for typedefs, structures, etc
 217 dnl --------------------------------------------------
 218
 219 dnl none
 220
 221 dnl --------------------------------------------------
 222 dnl Check for libraries
 223 dnl --------------------------------------------------
 224
 225 AC_CHECK_LIB(m, cos, VORBIS_LIBS="-lm", VORBIS_LIBS="")
 226 AC_CHECK_LIB(pthread, pthread_create, pthread_lib="-lpthread", :)
 227
 228 PKG_PROG_PKG_CONFIG
 229
 230 HAVE_OGG=no
 231 if test "x$PKG_CONFIG" != "x"
 232 then
 233   PKG_CHECK_MODULES(OGG, ogg >= 1.0, HAVE_OGG=yes, HAVE_OGG=no)
 234 fi
 235 if test "x$HAVE_OGG" = "xno"
 236 then
 237   dnl fall back to the old school test
 238   XIPH_PATH_OGG(, AC_MSG_ERROR(must have Ogg installed!))
 239   libs_save=$LIBS
 240   LIBS="$OGG_LIBS $VORBIS_LIBS"
 241   AC_CHECK_FUNC(oggpack_writealign, , AC_MSG_ERROR(Ogg >= 1.0 required !))
 242   LIBS=$libs_save
 243 fi
 244
 245 dnl --------------------------------------------------
 246 dnl Check for library functions
 247 dnl --------------------------------------------------
 248
 249 AC_FUNC_ALLOCA
 250 AC_FUNC_MEMCMP
 251
 252 dnl --------------------------------------------------
 253 dnl Do substitutions
 254 dnl --------------------------------------------------
 255
 256 AC_SUBST(VORBIS_LIBS)
 257 AC_SUBST(DEBUG)
 258 AC_SUBST(PROFILE)
 259 AC_SUBST(pthread_lib)
 260
 261 dnl The following line causes the libtool distributed with the source
 262 dnl to be replaced if the build system has a more recent version.
 263 AC_SUBST(LIBTOOL_DEPS)
 264
 265 AC_OUTPUT([
 266 Makefile
 267 m4/Makefile
 268 lib/Makefile
 269 lib/modes/Makefile
 270 lib/books/Makefile
 271 lib/books/coupled/Makefile
 272 lib/books/uncoupled/Makefile
 273 lib/books/floor/Makefile
 274 doc/Makefile doc/vorbisfile/Makefile doc/vorbisenc/Makefile
 275 doc/Doxyfile
 276 include/Makefile include/vorbis/Makefile
 277 examples/Makefile
 278 test/Makefile
 279 vq/Makefile
 280 libvorbis.spec
 281 vorbis.pc
 282 vorbisenc.pc
 283 vorbisfile.pc
 284 vorbis-uninstalled.pc
 285 vorbisenc-uninstalled.pc
 286 vorbisfile-uninstalled.pc
 287 ])