dnl Process this file with autoconf to produce a configure script.

AC_PREREQ(2.52)

AC_INIT

AC_CONFIG_SRCDIR([src/a52dec.c])

AC_CONFIG_AUX_DIR(autotools)

AC_CONFIG_FILES([Makefile autotools/Makefile include/Makefile test/Makefile

    doc/Makefile src/Makefile liba52/Makefile libao/Makefile vc++/Makefile])

AM_INIT_AUTOMAKE([a52dec],[0.7.4])

AM_CONFIG_HEADER(include/config.h)

AM_MAINTAINER_MODE

AC_CANONICAL_HOST

dnl Checks for compiler

AC_PROG_CC

AC_PROG_GCC_TRADITIONAL

if test x"$GCC" = x"yes"; then

    dnl GCC-specific flags - try to optimize them sometime

    dnl -Wall -Werror moved to the end to not disturb the configure script

    dnl -O3

    changequote(<<,>>)

    OPT_CFLAGS=`echo "$CFLAGS"|sed "s/-O[0-9]*//g"`

    changequote([,])

    OPT_CFLAGS="$OPT_CFLAGS -O3"

    AC_TRY_CFLAGS([$OPT_CFLAGS],[CFLAGS=$OPT_CFLAGS])

    dnl -fomit-frame-pointer

    OPT_CFLAGS="$CFLAGS -fomit-frame-pointer"

    AC_TRY_CFLAGS([$OPT_CFLAGS],[CFLAGS=$OPT_CFLAGS])

    dnl arch-specific flags

    case "$host" in

    i?86-* | k?-*)

	case "$host" in

	i386-*) OPT_CFLAGS="$CFLAGS -mcpu=i386";;

	i486-*) OPT_CFLAGS="$CFLAGS -mcpu=i486";;

	i586-*) OPT_CFLAGS="$CFLAGS -mcpu=pentium";;

	i686-*) OPT_CFLAGS="$CFLAGS -mcpu=pentiumpro";;

	k6-*)   OPT_CFLAGS="$CFLAGS -mcpu=k6";;

	esac

	AC_TRY_CFLAGS([$OPT_CFLAGS],[CFLAGS=$OPT_CFLAGS]);;

    sparc-* | sparc64-*)

	OPT_CFLAGS="$CFLAGS -mtune=ultrasparc"

	AC_TRY_CFLAGS([$OPT_CFLAGS],[CFLAGS=$OPT_CFLAGS]);;

    mips-sgi-irix6.*)	dnl do we need to be that specific ?

	OPT_CFLAGS="$CFLAGS -mabi=64"

	AC_TRY_CFLAGS([$OPT_CFLAGS],[CFLAGS=$OPT_CFLAGS]);;

    esac

elif test x"$CC" = x"tcc" -a x"`$CC -version 2>&1 | grep TenDRA`" != x""; then

    dnl TenDRA portability checking compiler

    TENDRA=yes

    CFLAGS="-Xp -Yansi -f`pwd`/include/tendra.h -DELIDE_CODE"

    enable_mlib=no

    enable_oss=no

    enable_solaris_audio=no

elif test x"$CC" = x"icc" -a x"`$CC -V 2>&1 | grep Intel`" != x""; then

    dnl Intel C++ compiler

    CFLAGS="-g -O3 -unroll -ip"

else

    dnl non-gcc flags - we probably need exact configuration triplets here.

    case "$host" in

    mips-sgi-irix6.*)

	OPT_CFLAGS="$CFLAGS -64"

	AC_TRY_CFLAGS([$OPT_CFLAGS],[CFLAGS=$OPT_CFLAGS]);;

    sparc-sun-solaris*)

	OPT_CFLAGS="$CFLAGS -xCC -fast -xO5"

	AC_TRY_CFLAGS([$OPT_CFLAGS],[CFLAGS=$OPT_CFLAGS]);;

    esac

fi

dnl Checks for libtool - this must be done after we set cflags

AC_DISABLE_SHARED

AC_LIBTOOL_WIN32_DLL

AC_PROG_LIBTOOL

dnl Checks for libraries.

dnl Checks for header files.

INCLUDES='-I$(top_srcdir)/include -I$(top_builddir)/include'

AC_SUBST([INCLUDES])

AC_CHECK_HEADERS([sys/time.h sys/timeb.h io.h])

AC_CHECK_GENERATE_INTTYPES([include])

dnl Checks for typedefs, structures, and compiler characteristics.

AC_C_CONST

AC_C_ALWAYS_INLINE

AC_C_RESTRICT

AC_TYPE_SIZE_T

AC_C_BIGENDIAN

dnl Checks for library functions.

AC_CHECK_FUNCS([memalign gettimeofday ftime])

AC_TYPE_SIGNAL

builtin([include],[liba52/configure.incl])

builtin([include],[libao/configure.incl])

AC_ARG_ENABLE([warnings],

    [  --enable-warnings       treat warnings as errors])

if test x"$enable_warnings" = x"yes" -a x"$GCC" = x"yes"; then

    dnl compiler warnings

    OPT_CFLAGS="$CFLAGS -Wall -Werror"

    AC_TRY_CFLAGS([$OPT_CFLAGS],[CFLAGS=$OPT_CFLAGS])

elif test x"$TENDRA" = x"yes"; then

    dnl TenDRA portability checking compiler

    CFLAGS="$CFLAGS -DTenDRA_check"

fi

builtin([include],[src/configure.incl])

AC_C_ATTRIBUTE_ALIGNED

AC_OUTPUT