configure.ac

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	esac

#====================================================================================
# 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.])

#====================================================================================
# Target OS specific stuff.

OS_SPECIFIC_CFLAGS=""
OS_SPECIFIC_LINKS=""
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"
		;;
	mingw32*)
		os_is_win32=1
		OS_SPECIFIC_LINKS="-lwinmm"
		;;
	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])

#====================================================================================
# Check for ALSA.

ALSA_LIBS=""

AC_CHECK_HEADERS(alsa/asoundlib.h)
if test x$ac_cv_header_alsa_asoundlib_h = xyes ; then
	ALSA_LIBS="-lasound"
	fi

#====================================================================================
# Test for sanity when cross-compiling.

if test x$cross_compiling = xyes ; 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

#====================================================================================
# Settings for the HTML documentation.

htmldocdir=$prefix/share/doc/libsndfile1-dev/html

if test $prefix = "NONE" ; then
	htmldocdir=/usr/local/share/doc/libsndfile1-dev/html
else
	htmldocdir=$prefix/share/doc/libsndfile1-dev/html
	fi

if test x$ac_arg_bow_docs = "xY" ; then
	HTML_BGCOLOUR="white"
	HTML_FGCOLOUR="black"
else
	HTML_BGCOLOUR="black"
	HTML_FGCOLOUR="white"
	fi

#====================================================================================
# Now use the information from the checking stage.

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,\$(srcdir)/Symbols.darwin"
			;;
		linux*)
			SHLIB_VERSION_ARG="-Wl,--version-script=\$(srcdir)/Symbols.linux"
			;;
		*)
			;;
		esac
	if test x$ac_arg_gcc_pipe != "xN" ; then
	 	CFLAGS="$CFLAGS -pipe"
	 	fi

	if test x$ac_arg_gcc_werror = "xyes" ; then
		CFLAGS="-Werror $CFLAGS"
		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

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(htmldocdir)
AC_SUBST(HTML_BGCOLOUR)
AC_SUBST(HTML_FGCOLOUR)

AC_SUBST(SHLIB_VERSION_ARG)
AC_SUBST(SHARED_VERSION_INFO)
AC_SUBST(OS_SPECIFIC_CFLAGS)
AC_SUBST(OS_SPECIFIC_LINKS)
AC_SUBST(ALSA_LIBS)
AC_SUBST(ENABLE_EXPERIMENTAL_CODE)

AC_SUBST(COMPILER_IS_GCC)
AC_SUBST(GCC_MAJOR_VERSION)

dnl The following line causes the libtool distributed with the source 
dnl to be replaced if the build system has a more recent version.
AC_SUBST(LIBTOOL_DEPS)

AC_CONFIG_FILES([ \
			src/sndfile.h src/Makefile src/GSM610/Makefile src/G72x/Makefile \
			man/Makefile examples/Makefile tests/Makefile \
			doc/Makefile doc/libsndfile.css \
			Win32/Makefile Win32/Makefile.mingw \
			MacOS9/Makefile Octave/Makefile \
			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

if test $libdir = "\${exec_prefix}/lib" ; then
	libdir="$prefix/lib"
	fi

if test $bindir = "\${exec_prefix}/bin" ; then
	bindir="$prefix/bin"
	fi

AC_MSG_RESULT([[
  Installation directories :

    Library directory : ........... $libdir
    Program directory : ........... $bindir
    Pkgconfig directory : ......... $libdir/pkgconfig
    HTML docs directory : ......... $htmldocdir
]])

if test x$prefix != "x/usr" ; then
	echo "Compiling some other packages against libsndfile may require"
	echo -e "the addition of \"$libdir/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