third_party_libsnd/configure.ac
2004-02-24 11:24:12 +00:00

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# Copyright (C) 1999-2004 Erik de Castro Lopo (erikd AT mega-nerd DOT com).
dnl Require autoconf version
AC_PREREQ(2.54)
AC_INIT(libsndfile,1.0.7,erikd@mega-nerd.com)
AC_CONFIG_SRCDIR([src/sndfile.c])
AC_CANONICAL_TARGET([])
AM_INIT_AUTOMAKE($PACKAGE_NAME,$PACKAGE_VERSION)
AC_CONFIG_HEADERS(src/config.h)
#------------------------------------------------------------------------------------
# Rules for library version information:
#
# 1. Start with version information of `0:0:0' for each libtool library.
# 2. Update the version information only immediately before a public release of
# your software. More frequent updates are unnecessary, and only guarantee
# that the current interface number gets larger faster.
# 3. If the library source code has changed at all since the last update, then
# increment revision (`c:r:a' becomes `c:r+1:a').
# 4. If any interfaces have been added, removed, or changed since the last update,
# increment current, and set revision to 0.
# 5. If any interfaces have been added since the last public release, then increment
# age.
# 6. If any interfaces have been removed since the last public release, then set age
# to 0.
SHARED_VERSION_INFO="1:7:0"
AC_CHECK_PROG(autogen, autogen, yes, no)
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_PROG_LN_S
AM_PROG_LIBTOOL
AC_HEADER_STDC
AC_CHECK_HEADERS(endian.h)
AC_HEADER_SYS_WAIT
AC_CHECK_DECLS(S_IRGRP)
AC_DEFINE_UNQUOTED([HAVE_DECL_S_IRGRP],${HAVE_DECL_S_IRGRP}, [Set to 1 if S_IRGRP is defined.])
#====================================================================================
# Couple of initializations here. Fill in real values later.
SHLIB_VERSION_ARG=""
#====================================================================================
# Finished checking, handle options.
AC_ARG_ENABLE(experimental,
[ --enable-experimental enable experimental code],
ac_arg_experimental=yes, ac_arg_experimental=no)
EXPERIMENTAL_CODE=0
if test x$ac_arg_experimental = xyes ; then
EXPERIMENTAL_CODE=1
fi
AC_DEFINE_UNQUOTED([ENABLE_EXPERIMENTAL_CODE],${EXPERIMENTAL_CODE}, [Set to 1 to enable experimental code.])
AC_ARG_ENABLE(gcc-pipe,
[ --disable-gcc-pipe disable gcc -pipe option],
ac_arg_gcc_pipe="N", ac_arg_gcc_pipe="Y")
AC_ARG_ENABLE(gcc-opt,
[ --disable-gcc-opt disable gcc optimisations],
ac_arg_gcc_opt="N", ac_arg_gcc_opt="Y")
AC_ARG_ENABLE(cpu-clip,
[ --disable-cpu-clip disable tricky cpu specific clipper],
ac_arg_cpu_clip="N", ac_arg_cpu_clip="Y")
if test x$ac_cv_c_compiler_gnu = xyes ; then
CFLAGS="$CFLAGS -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Waggregate-return -Wcast-align -Wcast-qual -Wnested-externs -Wshadow -Wbad-function-cast -Wwrite-strings"
# -Wpointer-arith -Wundef -Wmissing-declarations -Winline -Wconversion"
if test "$ac_arg_gcc_opt" = "N" ; then
temp_CFLAGS=`echo $CFLAGS | sed "s/O2/O0/"`
CFLAGS=$temp_CFLAGS
AC_MSG_WARN([[*** Compiler optimisations switched off. ***]])
fi
# OS specific tweaks.
case "$target_os" in
darwin* | rhapsody*)
# Disable -Wall, -pedantic and -Wshadow for Apple Darwin/Rhapsody.
# System headers on these systems are broken.
temp_CFLAGS=`echo $CFLAGS | sed "s/-Wall -pedantic//" | sed "s/-Wshadow//" | sed "s/-Waggregate-return//"`
CFLAGS=$temp_CFLAGS
SHLIB_VERSION_ARG="-Wl,-exported_symbols_list -Wl,Symbols"
;;
linux*)
SHLIB_VERSION_ARG="-Wl,--version-script=Symbols"
;;
*)
;;
esac
if test x$ac_arg_gcc_pipe != "xN" ; then
CFLAGS="$CFLAGS -pipe"
fi
AC_DEFINE([COMPILER_IS_GCC],1, [Set to 1 if the compile is GNU GCC.])
GCC_MAJOR_VERSION=`$CC -dumpversion | sed "s/\..*//"`
AC_DEFINE_UNQUOTED([GCC_MAJOR_VERSION],${GCC_MAJOR_VERSION}, [Major version of GCC or 3 otherwise.])
fi
#====================================================================================
# Check types and their sizes.
AC_CHECK_SIZEOF(short,2)
AC_CHECK_SIZEOF(int,4)
AC_CHECK_SIZEOF(long,4)
AC_CHECK_SIZEOF(float,4)
AC_CHECK_SIZEOF(double,4)
AC_CHECK_SIZEOF(void*,8)
AC_CHECK_SIZEOF(size_t,4)
#====================================================================================
# Find an appropriate type for sf_count_t.
# On systems supporting files larger than 2 Gig, sf_count_t must be a 64 bit value.
# Unfortunately there is more than one way of ensuring this so need to do some
# pretty rigourous testing here.
unset ac_cv_sizeof_off_t
AC_CHECK_SIZEOF(off_t,1) # Fake default value.
if test "x$ac_cv_sizeof_off_t" = "x8" ; then
# If sizeof (off_t) is 8, no further checking is needed.
TYPEOF_SF_COUNT_T="off_t"
SIZEOF_SF_COUNT_T=8
else
# Check for common 64 bit file offset types.
AC_CHECK_SIZEOF(loff_t,1) # Fake default value.
AC_CHECK_SIZEOF(off64_t,1) # Fake default value.
TYPEOF_SF_COUNT_T="unknown"
if test "x$ac_cv_sizeof_loff_t" = "x8" ; then
TYPEOF_SF_COUNT_T="loff_t"
SIZEOF_SF_COUNT_T=8
elif test "x$ac_cv_sizeof_off64_t" = "x8" ; then
TYPEOF_SF_COUNT_T="off64_t"
SIZEOF_SF_COUNT_T=8
fi
# Save the old sizeof (off_t) value and then unset it to see if it
# changes when Large File Support is enabled.
pre_largefile_sizeof_off_t=$ac_cv_sizeof_off_t
unset ac_cv_sizeof_off_t
AC_SYS_EXTRA_LARGEFILE
if test "x$ac_cv_sys_largefile_CFLAGS" = "xno" ; then
ac_cv_sys_largefile_CFLAGS=""
fi
if test "x$ac_cv_sys_largefile_LDFLAGS" = "xno" ; then
ac_cv_sys_largefile_LDFLAGS=""
fi
if test "x$ac_cv_sys_largefile_LIBS" = "xno" ; then
ac_cv_sys_largefile_LIBS=""
fi
AC_CHECK_SIZEOF(off_t,1) # Fake default value.
if test "x$ac_cv_sizeof_off_t" = "x$pre_largefile_sizeof_off_t" ; then
AC_MSG_WARN([[This machine does not seem to support 64 bit file offsets.]])
TYPEOF_SF_COUNT_T="off_t"
SIZEOF_SF_COUNT_T=$ac_cv_sizeof_off_t
elif test "x$TYPEOF_SF_COUNT_T" = "xunknown" ; then
echo
echo "*** The configure process has determined that this system is capable"
echo "*** of Large File Support but has not been able to find a type which"
echo "*** is an unambiguous 64 bit file offset."
echo "*** Please contact the author to help resolve this problem."
echo
AC_MSG_ERROR([[Bad file offset type.]])
fi
fi
if test $SIZEOF_SF_COUNT_T = 8 ; then
SF_COUNT_MAX="0x7FFFFFFFFFFFFFFFLL"
elif test $SIZEOF_SF_COUNT_T = 4 ; then
SF_COUNT_MAX="0x7FFFFFFF"
fi
AC_DEFINE_UNQUOTED([TYPEOF_SF_COUNT_T],${TYPEOF_SF_COUNT_T}, [Set to long if unknown.])
AC_SUBST(TYPEOF_SF_COUNT_T)
AC_DEFINE_UNQUOTED([SIZEOF_SF_COUNT_T],${SIZEOF_SF_COUNT_T}, [Set to sizeof (long) if unknown.])
AC_SUBST(SIZEOF_SF_COUNT_T)
AC_DEFINE_UNQUOTED([SF_COUNT_MAX],${SF_COUNT_MAX}, [Set to maximum allowed value of sf_count_t type.])
AC_SUBST(SF_COUNT_MAX)
AC_CHECK_SIZEOF(ssize_t,4)
#====================================================================================
# Determine endian-ness of target processor.
AC_C_FIND_ENDIAN
AC_DEFINE_UNQUOTED(CPU_IS_BIG_ENDIAN, ${ac_cv_c_big_endian},
[Target processor is big endian.])
AC_DEFINE_UNQUOTED(CPU_IS_LITTLE_ENDIAN, ${ac_cv_c_little_endian},
[Target processor is little endian.])
#====================================================================================
# Determine if the processor can do clipping on float to int conversions.
if test x$ac_arg_cpu_clip = "xY" ; then
AC_C_CLIP_MODE
else
echo "checking processor clipping capabilities... disabled"
ac_cv_c_clip_positive=0
ac_cv_c_clip_negative=0
fi
AC_DEFINE_UNQUOTED(CPU_CLIPS_POSITIVE, ${ac_cv_c_clip_positive},
[Target processor clips on positive float to int conversion.])
AC_DEFINE_UNQUOTED(CPU_CLIPS_NEGATIVE, ${ac_cv_c_clip_negative},
[Target processor clips on negative float to int conversion.])
#====================================================================================
# Check for functions.
AC_CHECK_FUNCS(malloc calloc realloc free)
AC_CHECK_FUNCS(open read write lseek pread pwrite)
AC_CHECK_FUNCS(fstat ftruncate fsync fdatasync)
AC_CHECK_FUNCS(snprintf vsnprintf)
AC_CHECK_FUNCS(gmtime gmtime_r)
AC_CHECK_FUNCS(mmap getpagesize)
AC_CHECK_LIB([m],floor)
AC_CHECK_FUNCS(floor ceil fmod)
case "$target_os" in
darwin* | rhapsody*)
AC_MSG_WARN([[Not using native lrint() and lrintf() because they are missing on 10.1.]])
;;
*)
AC_C99_FUNC_LRINT
AC_C99_FUNC_LRINTF
if test x$ac_cv_c99_lrint = xno || test x$ac_cv_c99_lrintf = xno ; then
AC_MSG_WARN([[*** Missing C99 standard functions lrint() and lrintf().]])
AC_MSG_WARN([[*** This may cause benign compiler warnings on some systems (ie Solaris).]])
fi
;;
esac
#====================================================================================
# Target OS specific stuff.
OS_SPECIFIC_CFLAGS=""
os_is_win32=0
os_is_macosx=0
case "$target_os" in
darwin* | rhapsody*)
os_is_macosx=1
OS_SPECIFIC_CFLAGS="-fpascal-strings -I/Developer/Headers/FlatCarbon"
OS_SPECIFIC_LINKS="-framework CoreAudio"
;;
mingw32msvc)
os_is_win32=1
AC_CHECK_HEADERS(wintypes.h mmreg.h)
OS_SPECIFIC_CFLAGS=""
OS_SPECIFIC_LINKS=""
;;
*)
OS_SPECIFIC_CFLAGS=""
OS_SPECIFIC_LINKS=""
;;
esac
AC_DEFINE_UNQUOTED(OS_IS_WIN32, ${os_is_win32}, [Set to 1 if compiling for Win32])
AC_DEFINE_UNQUOTED(OS_IS_MACOSX, ${os_is_macosx}, [Set to 1 if compiling for MacOSX])
#====================================================================================
# Test for sanity when cross-compiling.
if test $cross_compiling = yes ; then
AC_MSG_WARN([[******************************************************************]])
AC_MSG_WARN([[*** We are cross-compiling, so have to assume sizeof (short) == 2 ]])
AC_MSG_WARN([[*** and sizeof (int) == 4. If this is not the case there is no ]])
AC_MSG_WARN([[*** chance of this working. Please contact the mantainer. ]])
AC_MSG_WARN([[******************************************************************]])
fi
if test $ac_cv_sizeof_short != 2 ; then
AC_MSG_WARN([[******************************************************************]])
AC_MSG_WARN([[*** sizeof (short) != 2. ]])
AC_MSG_WARN([[******************************************************************]])
fi
if test $ac_cv_sizeof_int != 4 ; then
AC_MSG_WARN([[******************************************************************]])
AC_MSG_WARN([[*** sizeof (int) != 4 ]])
AC_MSG_WARN([[******************************************************************]])
fi
if test $ac_cv_sizeof_float != 4 ; then
AC_MSG_WARN([[******************************************************************]])
AC_MSG_WARN([[*** sizeof (float) != 4. ]])
AC_MSG_WARN([[******************************************************************]])
fi
if test $ac_cv_sizeof_double != 8 ; then
AC_MSG_WARN([[******************************************************************]])
AC_MSG_WARN([[*** sizeof (double) != 8. ]])
AC_MSG_WARN([[******************************************************************]])
fi
if test x"$ac_cv_prog_autogen" = "xno" ; then
AC_MSG_WARN([[Touching files in directory tests/.]])
touch tests/*.c tests/*.h
fi
#====================================================================================
# Now use the information from the checking stage.
CFLAGS="$CFLAGS $OS_SPECIFIC_CFLAGS"
if test x"$CFLAGS" = x ; then
echo "Error in configure script. CFLAGS has been screwed up."
exit
fi
AC_SUBST(SHLIB_VERSION_ARG)
AC_SUBST(SHARED_VERSION_INFO)
AC_SUBST(OS_SPECIFIC_CFLAGS)
AC_SUBST(OS_SPECIFIC_LINKS)
AC_SUBST(ENABLE_EXPERIMENTAL_CODE)
AC_SUBST(COMPILER_IS_GCC)
AC_SUBST(GCC_MAJOR_VERSION)
AC_CONFIG_FILES([Makefile src/sndfile.h \
src/Makefile src/GSM610/Makefile src/G72x/Makefile \
man/Makefile examples/Makefile tests/Makefile doc/Makefile \
Win32/Makefile MacOS9/Makefile Octave/Makefile \
libsndfile.spec sndfile.pc])
AC_OUTPUT
#====================================================================================
AC_MSG_RESULT([
-=-=-=-=-=-=-=-=-=-= Configuration Complete =-=-=-=-=-=-=-=-=-=-
Configuration summary :
Version : ..................... ${VERSION}
Experimental code : ........... ${ac_arg_experimental}
])
if test x$ac_cv_c_compiler_gnu = xyes ; then
echo -e " Tools :\n"
echo " Compiler is GCC : ............. ${ac_cv_c_compiler_gnu}"
echo " GCC major version : ........... ${GCC_MAJOR_VERSION}"
if test $GCC_MAJOR_VERSION -lt 3 ; then
echo -e "\n ** This compiler version allows applications to write "
echo " ** to static strings within the library."
echo " ** Compile with GCC version 3.X to avoid this problem."
fi
fi
AC_MSG_RESULT([
Installation directories :
Library directory : ........... ${prefix}/lib
Program directory : ........... ${prefix}/bin
Pkgconfig directory : ......... ${prefix}/lib/pkgconfig
])
if test x$prefix != "x/usr" ; then
echo "Compiling some other packages against libsndfile may require "
echo -e "the addition of \"${prefix}/lib/pkgconfig\" to the "
echo -e "PKG_CONFIG_PATH environment variable.\n"
fi
ifelse(dnl
Do not edit or modify anything in this comment block.
The arch-tag line is a file identity tag for the GNU Arch
revision control system.
arch-tag: 6391b316-6cfc-43c2-a18a-8defdc4ee359
)dnl