configure.in

   1 dnl Process this file with autoconf to produce a configure script
   2
   3 dnl ------------------------------------------------
   4 dnl Initialization and Versioning
   5 dnl ------------------------------------------------
   6
   7 AC_INIT(lib/mdct.c)
   8 AM_INIT_AUTOMAKE(libvorbis,1.0beta3)
   9
  10 dnl Library versioning
  11
  12 V_LIB_CURRENT=0
  13 V_LIB_REVISION=0
  14 V_LIB_AGE=0
  15 VF_LIB_CURRENT=0
  16 VF_LIB_REVISION=0
  17 VF_LIB_AGE=0
  18 VE_LIB_CURRENT=0
  19 VE_LIB_REVISION=0
  20 VE_LIB_AGE=0
  21 AC_SUBST(V_LIB_CURRENT)
  22 AC_SUBST(V_LIB_REVISION)
  23 AC_SUBST(V_LIB_AGE)
  24 AC_SUBST(VF_LIB_CURRENT)
  25 AC_SUBST(VF_LIB_REVISION)
  26 AC_SUBST(VF_LIB_AGE)
  27 AC_SUBST(VE_LIB_CURRENT)
  28 AC_SUBST(VE_LIB_REVISION)
  29 AC_SUBST(VE_LIB_AGE)
  30
  31 dnl --------------------------------------------------
  32 dnl Check for programs
  33 dnl --------------------------------------------------
  34
  35 dnl save $CFLAGS since AC_PROG_CC likes to insert "-g -O2"
  36 dnl if $CFLAGS is blank
  37 cflags_save="$CFLAGS"
  38 AC_PROG_CC
  39 CFLAGS="$cflags_save"
  40
  41 AM_PROG_LIBTOOL
  42
  43 dnl --------------------------------------------------
  44 dnl Set build flags based on environment
  45 dnl --------------------------------------------------
  46
  47 AC_CANONICAL_HOST
  48
  49 dnl Set some target options
  50 if test -z "$GCC"; then
  51         case $host in
  52         *-*-irix*)
  53                 dnl If we're on IRIX, we wanna use cc even if gcc
  54                 dnl is there (unless the user has overriden us)...
  55                 if test -z "$CC"; then
  56                         CC=cc
  57                 fi
  58                 DEBUG="-g -signed"
  59                 CFLAGS="-O2 -w -signed"
  60                 PROFILE="-p -g3 -O2 -signed" ;;
  61         sparc-sun-solaris*)
  62                 DEBUG="-v -g"
  63                 CFLAGS="-xO4 -fast -w -fsimple -native -xcg92"
  64                 PROFILE="-v -xpg -g -xO4 -fast -native -fsimple -xcg92 -Dsuncc" ;;
  65         *)
  66                 DEBUG="-g"
  67                 CFLAGS="-O"
  68                 PROFILE="-g -p" ;;
  69         esac
  70 else
  71
  72         case $host in
  73         *86-*-linux*)
  74                 DEBUG="-g -Wall -D_REENTRANT -D__NO_MATH_INLINES -fsigned-char"
  75                 CFLAGS="-O20 -ffast-math -mno-ieee-fp -D_REENTRANT -fsigned-char"
  76 #               PROFILE="-Wall -W -pg -g -O20 -ffast-math -D_REENTRANT -fsigned-char -fno-inline -static"
  77                 PROFILE="-Wall -W -pg -g -O20 -ffast-math -mno-ieee-fp -D_REENTRANT -fsigned-char -fno-inline -static"
  78
  79                 # glibc < 2.1.3 has a serious FP bug in the math inline header
  80                 # that will cripple Vorbis.  Look to see if the magic FP stack
  81                 # clobber is missing in the mathinline header, thus indicating
  82                 # the buggy version
  83
  84                 AC_EGREP_CPP(log10.*fldlg2.*fxch,[
  85                                 #define __LIBC_INTERNAL_MATH_INLINES 1
  86                                 #define __OPTIMIZE__
  87                                 #include <math.h>
  88                                 ],bad=maybe,bad=no)
  89                 if test ${bad} = "maybe" ;then
  90                       AC_EGREP_CPP(log10.*fldlg2.*fxch.*st\([[0123456789]]*\),
  91                                         [
  92                                         #define __LIBC_INTERNAL_MATH_INLINES 1
  93                                         #define __OPTIMIZE__
  94                                         #include <math.h>
  95                                         ],bad=no,bad=yes)
  96                 fi
  97                 if test ${bad} = "yes" ;then
  98  AC_MSG_WARN([                                                        ])
  99  AC_MSG_WARN([********************************************************])
 100  AC_MSG_WARN([* The glibc headers on this machine have a serious bug *])
 101  AC_MSG_WARN([* in /usr/include/bits/mathinline.h  This bug affects  *])
 102  AC_MSG_WARN([* all floating point code, not just Ogg, built on this *])
 103  AC_MSG_WARN([* machine.  Upgrading to glibc 2.1.3 is strongly urged *])
 104  AC_MSG_WARN([* to correct the problem.  Note that upgrading glibc   *])
 105  AC_MSG_WARN([* will not fix any previously built programs; this is  *])
 106  AC_MSG_WARN([* a compile-time time bug.                             *])
 107  AC_MSG_WARN([* To work around the problem for this build of Ogg,    *])
 108  AC_MSG_WARN([* autoconf is disabling all math inlining.  This will  *])
 109  AC_MSG_WARN([* hurt Ogg performace but is necessary for an Ogg that *])
 110  AC_MSG_WARN([* will actually work.  Once glibc is upgraded, rerun   *])
 111  AC_MSG_WARN([* configure and make to build with inlining.           *])
 112  AC_MSG_WARN([********************************************************])
 113  AC_MSG_WARN([                                                        ])
 114
 115                 CFLAGS=${OPT}" -D__NO_MATH_INLINES"
 116                 PROFILE=${PROFILE}" -D__NO_MATH_INLINES"
 117                 fi;;
 118         *-*-linux*)
 119                 DEBUG="-g -Wall -D_REENTRANT -D__NO_MATH_INLINES -fsigned-char"
 120                 CFLAGS="-O20 -ffast-math -D_REENTRANT -fsigned-char"
 121                 PROFILE="-pg -g -O20 -ffast-math -D_REENTRANT -fsigned-char";;
 122         sparc-sun-*)
 123                 DEBUG="-g -Wall -D__NO_MATH_INLINES -fsigned-char -mv8"
 124                 CFLAGS="-O20 -ffast-math -D__NO_MATH_INLINES -fsigned-char -mv8"
 125                 PROFILE="-pg -g -O20 -D__NO_MATH_INLINES -fsigned-char -mv8" ;;
 126         *)
 127                 DEBUG="-g -Wall -D__NO_MATH_INLINES -fsigned-char"
 128                 CFLAGS="-O20 -D__NO_MATH_INLINES -fsigned-char"
 129                 PROFILE="-O20 -g -pg -D__NO_MATH_INLINES -fsigned-char" ;;
 130         esac
 131 fi
 132
 133 dnl --------------------------------------------------
 134 dnl Check for headers
 135 dnl --------------------------------------------------
 136
 137 AC_CHECK_HEADER(memory.h,CFLAGS="$CFLAGS -DUSE_MEMORY_H",:)
 138
 139 dnl --------------------------------------------------
 140 dnl Check for typedefs, structures, etc
 141 dnl --------------------------------------------------
 142
 143 dnl none
 144
 145 dnl --------------------------------------------------
 146 dnl Check for libraries
 147 dnl --------------------------------------------------
 148
 149 AC_CHECK_LIB(m, cos, LIBS="-lm", LIBS="")
 150 AC_CHECK_LIB(pthread, pthread_create, pthread_lib="-lpthread", :)
 151
 152 AM_PATH_OGG(LIBS="$LIBS $OGG_LIBS", AC_MSG_ERROR(must have Ogg installed!))
 153
 154 dnl --------------------------------------------------
 155 dnl Check for library functions
 156 dnl --------------------------------------------------
 157
 158 AC_FUNC_ALLOCA
 159 AC_FUNC_MEMCMP
 160
 161 dnl --------------------------------------------------
 162 dnl Do substitutions
 163 dnl --------------------------------------------------
 164
 165 AC_SUBST(DEBUG)
 166 AC_SUBST(PROFILE)
 167 AC_SUBST(pthread_lib)
 168
 169 AC_OUTPUT(Makefile lib/Makefile lib/modes/Makefile lib/books/Makefile doc/Makefile doc/vorbisfile/Makefile doc/vorbisenc/Makefile include/Makefile include/vorbis/Makefile examples/Makefile)