configure.ac

   1 dnl Process this file with autoconf to produce a configure script. -*-m4-*-
   2
   3 AC_INIT(libcelt/arch.h)
   4
   5 AM_CONFIG_HEADER([config.h])
   6
   7 CELT_MAJOR_VERSION=0
   8 CELT_MINOR_VERSION=8
   9 CELT_MICRO_VERSION=1
  10 CELT_EXTRA_VERSION=
  11 CELT_VERSION=$CELT_MAJOR_VERSION.$CELT_MINOR_VERSION.$CELT_MICRO_VERSION$CELT_EXTRA_VERSION
  12 LIBCELT_SUFFIX=0
  13
  14 CELT_LT_CURRENT=1
  15 CELT_LT_REVISION=0
  16 CELT_LT_AGE=0
  17
  18 AC_SUBST(CELT_LT_CURRENT)
  19 AC_SUBST(CELT_LT_REVISION)
  20 AC_SUBST(CELT_LT_AGE)
  21 AC_SUBST(LIBCELT_SUFFIX)
  22
  23 # For automake.
  24 VERSION=$CELT_VERSION
  25 PACKAGE=celt
  26
  27 AC_SUBST(CELT_VERSION)
  28
  29 AM_INIT_AUTOMAKE($PACKAGE, $VERSION, no-define)
  30 AM_MAINTAINER_MODE
  31
  32 AC_CANONICAL_HOST
  33 AM_PROG_LIBTOOL
  34
  35 AC_PROG_CC_C99
  36 AC_C_BIGENDIAN
  37 AC_C_CONST
  38 AC_C_INLINE
  39 AC_C_RESTRICT
  40
  41 AC_DEFINE([CELT_BUILD], [], [This is a build of CELT])
  42
  43 AC_MSG_CHECKING(for C99 variable-size arrays)
  44 AC_TRY_COMPILE( , [
  45 int foo=10;
  46 int array[foo];
  47 ],
  48 [has_var_arrays=yes;AC_DEFINE([VAR_ARRAYS], [], [Use C99 variable-size arrays])
  49 ],
  50 has_var_arrays=no
  51 )
  52 AC_MSG_RESULT($has_var_arrays)
  53
  54 AC_CHECK_HEADERS([alloca.h getopt.h])
  55 AC_MSG_CHECKING(for alloca)
  56 AC_TRY_COMPILE( [#include <alloca.h>], [
  57 int foo=10;
  58 int *array = alloca(foo);
  59 ],
  60 [
  61 has_alloca=yes;
  62 if test x$has_var_arrays = "xno" ; then
  63 AC_DEFINE([USE_ALLOCA], [], [Make use of alloca])
  64 fi
  65 ],
  66 has_alloca=no
  67 )
  68 AC_MSG_RESULT($has_alloca)
  69
  70 AC_CHECK_HEADERS(sys/soundcard.h sys/audioio.h)
  71
  72 AS_IF([test "x$with_ogg" != xno],
  73  [XIPH_PATH_OGG([tools="tools"], [tools=""])],
  74  [tools=""])
  75 AC_SUBST(tools)
  76
  77 AC_CHECK_LIB(m, sin)
  78
  79 # Check for getopt_long; if not found, use included source.
  80 AC_CHECK_FUNCS([getopt_long],,
  81 [# FreeBSD has a gnugetopt library.
  82   AC_CHECK_LIB([gnugetopt],[getopt_long],
  83 [AC_DEFINE([HAVE_GETOPT_LONG])],
  84 [# Use the GNU replacement.
  85 AC_LIBOBJ(getopt)
  86 AC_LIBOBJ(getopt1)])])
  87
  88 AC_CHECK_LIB(winmm, main)
  89
  90 AC_DEFINE_UNQUOTED(CELT_VERSION, "${CELT_VERSION}", [Complete version string])
  91 AC_DEFINE_UNQUOTED(CELT_MAJOR_VERSION, ${CELT_MAJOR_VERSION}, [Version major])
  92 AC_DEFINE_UNQUOTED(CELT_MINOR_VERSION, ${CELT_MINOR_VERSION}, [Version minor])
  93 AC_DEFINE_UNQUOTED(CELT_MICRO_VERSION, ${CELT_MICRO_VERSION}, [Version micro])
  94 AC_DEFINE_UNQUOTED(CELT_EXTRA_VERSION, "${CELT_EXTRA_VERSION}", [Version extra])
  95
  96 has_float_approx=no
  97 #case "$host_cpu" in
  98 #i[[3456]]86 | x86_64 | powerpc64 | powerpc32 | ia64)
  99 #  has_float_approx=yes
 100 #  ;;
 101 #esac
 102
 103 ac_enable_fixed="no";
 104 AC_ARG_ENABLE(fixed-point, [  --enable-fixed-point    compile as fixed-point],
 105 [if test "$enableval" = yes; then
 106   ac_enable_fixed="yes";
 107   AC_DEFINE([FIXED_POINT], , [Compile as fixed-point])
 108 else
 109   AC_DEFINE([FLOATING_POINT], , [Compile as floating-point])
 110 fi],
 111 AC_DEFINE([FLOATING_POINT], , [Compile as floating-point]))
 112
 113 ac_enable_fixed_debug="no"
 114 AC_ARG_ENABLE(fixed-point-debug, [  --enable-fixed-point-debug  debug fixed-point implementation],
 115 [if test "$enableval" = yes; then
 116   ac_enable_fixed_debug="yes"
 117   AC_DEFINE([FIXED_DEBUG], , [Debug fixed-point implementation])
 118 fi])
 119
 120 float_approx=$has_float_approx
 121 AC_ARG_ENABLE(float-approx, [  --disable-float-approx  do not use fast approximations for floating point],
 122     [ if test "$enableval" = yes; then
 123     AC_WARN([Floating point approximations are not supported on all platforms.])
 124     float_approx=yes
 125     else
 126     float_approx=no
 127     fi], [ float_approx=$has_float_approx ])
 128
 129 if test "x${float_approx}" = "xyes"; then
 130     AC_DEFINE([FLOAT_APPROX], , [Float approximations])
 131 fi
 132
 133 ac_enable_static_modes="no"
 134 AC_ARG_ENABLE(static-modes, [  --enable-static-modes   use pre-computed codec configurations],
 135 [if test "$enableval" = yes; then
 136   ac_enable_static_modes="yes"
 137   AC_DEFINE([STATIC_MODES], , [Static modes])
 138 fi])
 139
 140 ac_enable_assertions="no"
 141 AC_ARG_ENABLE(assertions, [  --enable-assertions     enable additional software error checking],
 142 [if test "$enableval" = yes; then
 143   ac_enable_assertions="yes"
 144   AC_DEFINE([ENABLE_ASSERTIONS], , [Assertions])
 145 fi])
 146
 147 saved_CFLAGS="$CFLAGS"
 148 CFLAGS="$CFLAGS -fvisibility=hidden"
 149 AC_MSG_CHECKING([if ${CXX} supports -fvisibility=hidden])
 150 AC_COMPILE_IFELSE([char foo;],
 151       [ AC_MSG_RESULT([yes])
 152         SYMBOL_VISIBILITY="-fvisibility=hidden" ],
 153         AC_MSG_RESULT([no]))
 154 CFLAGS="$saved_CFLAGS $SYMBOL_VISIBILITY"
 155 AC_SUBST(SYMBOL_VISIBILITY)
 156
 157 if test $ac_cv_c_compiler_gnu = yes ; then
 158         CFLAGS="$CFLAGS -W -Wstrict-prototypes -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wno-parentheses -Wno-unused-parameter -Wno-sign-compare"
 159 fi
 160
 161 AC_C99_FUNC_LRINTF
 162 AC_C99_FUNC_LRINT
 163
 164 AC_CHECK_SIZEOF(short)
 165 AC_CHECK_SIZEOF(int)
 166 AC_CHECK_SIZEOF(long)
 167 AC_CHECK_SIZEOF(long long)
 168
 169 if test x$has_char16 = "xyes" ; then
 170         case 1 in
 171                 $ac_cv_sizeof_short) SIZE16="short";;
 172                 $ac_cv_sizeof_int) SIZE16="int";;
 173         esac
 174 else
 175         case 2 in
 176                 $ac_cv_sizeof_short) SIZE16="short";;
 177                 $ac_cv_sizeof_int) SIZE16="int";;
 178         esac
 179 fi
 180
 181 if test x$has_char16 = "xyes" ; then
 182         case 2 in
 183                 $ac_cv_sizeof_int) SIZE32="int";;
 184                 $ac_cv_sizeof_long) SIZE32="long";;
 185                 $ac_cv_sizeof_short) SIZE32="short";;
 186         esac
 187 else
 188         case 4 in
 189                 $ac_cv_sizeof_int) SIZE32="int";;
 190                 $ac_cv_sizeof_long) SIZE32="long";;
 191                 $ac_cv_sizeof_short) SIZE32="short";;
 192         esac
 193 fi
 194
 195 AC_SUBST(SIZE16)
 196 AC_SUBST(SIZE32)
 197
 198 AC_OUTPUT([Makefile libcelt/Makefile tests/Makefile
 199            celt.pc tools/Makefile libcelt.spec ])
 200
 201 AC_MSG_RESULT([
 202 ------------------------------------------------------------------------
 203   $PACKAGE $VERSION:  Automatic configuration OK.
 204
 205     Compiler support:
 206
 207       C99 var arrays: ................ ${has_var_arrays}
 208       C99 lrintf: .................... ${ac_cv_c99_lrintf}
 209       Alloca: ........................ ${has_alloca}
 210
 211     General configuration:
 212
 213       Fast float approximations: ..... ${float_approx}
 214       Fixed point support: ........... ${ac_enable_fixed}
 215       Fixed point debugging: ......... ${ac_enable_fixed_debug}
 216       Static modes: .................. ${ac_enable_static_modes}
 217       Assertion checking: ............ ${ac_enable_assertions}
 218 ------------------------------------------------------------------------
 219 ])
 220
 221 if test "x$tools" = "x"; then
 222 echo "**IMPORTANT**"
 223 echo "You don't seem to have the development package for libogg (libogg-devel) available. Only the library will be built (no encoder/decoder executable)"
 224 echo "You can download libogg from http://www.vorbis.com/download.psp"
 225 fi
 226
 227 echo "Type \"make; make install\" to compile and install";
 228 echo "Type \"make check\" to run the test suite";