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

 AC_INIT(configure.in)

 AM_INIT_AUTOMAKE(lxdream, 0.8.1)

 AM_MAINTAINER_MODE

 AM_CONFIG_HEADER(config.h)

 AC_ISC_POSIX

 AC_PROG_CC

 AM_PROG_CC_STDC

 AM_PROG_AS

 AC_HEADER_STDC

 AC_CANONICAL_BUILD

 AC_CANONICAL_HOST

 AC_ARG_ENABLE( trace, 

    AS_HELP_STRING( [--enable-trace], [Enable generation of IO traces (warning: hurts performance)]),

    [if test "$enableval" == "yes"; then

      AC_DEFINE(ENABLE_TRACE_IO, 1, [Enable IO tracing])

     fi] )

 AC_ARG_ENABLE( watch,

    AS_HELP_STRING( [--enable-watch], [Enable watchpoints in the debugger (warning: hurts performance)]),

    [if test "$enableval" == "yes"; then

      AC_DEFINE(ENABLE_WATCH, 1, [Enable watchpoints])

    fi] )

 AC_ARG_WITH( osmesa,

    AS_HELP_STRING( [--with-osmesa], [Build with the osmesa GL library (software rendering)]),

    [], [with_osmesa=no])

 AS_IF([test "x$with_osmesa" != xno], [ 

   AC_CHECK_LIB([OSMesa], [OSMesaCreateContext], [],

     [AC_MSG_FAILURE( [--with-osmesa was given, but OSMesa library could not be found])])

   AC_CHECK_HEADER([GL/osmesa.h], [],

     [AC_MSG_FAILURE( [--with-osmesa was given, but osmesa.h could not be found])])

   ])

 AM_CONDITIONAL(OSMESA_DRIVER, [test "x$with_osmesa" != xno])

 dnl ----------- Check for mandatory dependencies --------------

 dnl Building on MAC?

 AC_CHECK_HEADER([Carbon/Carbon.h], [

    HAVE_CARBON='yes'

    APPLE_BUILD='yes'

    LIBS="$LIBS -framework OpenGL -framework AGL -framework Carbon -L/usr/X11R6/lib -lGL"

    AC_DEFINE(HAVE_CARBON,[1],[Have Carbon framework])

    AC_DEFINE(APPLE_BUILD,[1],[Building on an apple platform. Things are different...])

 ])

 dnl Check for libpng (required)

 PKG_CHECK_MODULES(LIBPNG, [libpng] )

 dnl Implied by libpng, but check explicitly just in case

 AC_CHECK_LIB(z, uncompress, [], [

     echo "Zlib (libz.so) could not be found, but is required."

     exit 1])

 if test "$APPLE_BUILD" != 'yes'; then

 if test "x$with_osmesa" == "xno"; then

 AC_CHECK_LIB(GL, glXQueryVersion, [], [

     echo "The OpenGL library (libGL.so) could not be found, but is required."

     exit 1])

 AC_CHECK_HEADER([GL/gl.h], [], [

     echo "The OpenGL header files (eg GL/gl.h) could not be found, but are required."

     exit 1])

 fi

 fi

 AC_CHECK_FUNC(glGenFramebuffersEXT, [ AC_DEFINE([HAVE_OPENGL_FBO],1,[Have EXT_framebuffer_object support]) ], [])

 AC_CHECK_FUNC(glCreateShader, [ AC_DEFINE([HAVE_OPENGL_SHADER],1,[Have 2.0 shader support]) ], [])

 AC_CHECK_FUNC(glCreateShaderObjectARB, [ AC_DEFINE([HAVE_OPENGL_SHADER_ARB],1,[Have ARB shader support]) ], [])

 dnl Check for GTK (required for unix systems)

 PKG_CHECK_MODULES(GTK, gtk+-2.0, [

     HAVE_GTK='yes'

     AC_DEFINE([HAVE_GTK],1,[Have GTK libraries])

 ])

 AM_CONDITIONAL(GUI_CARBON, [test "$HAVE_CARBON" = 'yes'])

 AM_CONDITIONAL(GUI_GTK, [test "$HAVE_GTK" = 'yes'])

 dnl Check for a supported cpu target for translation purposes

 case $host_cpu in

     i386|i486|i586|i686)

 	SH4_TRANSLATOR="x86"

         AC_DEFINE_UNQUOTED(SH4_TRANSLATOR,[TARGET_X86], [SH4 Translator to use (if any)] );;

     x86_64)

 	SH4_TRANSLATOR="x86_64"

         AC_DEFINE_UNQUOTED(SH4_TRANSLATOR,[TARGET_X86_64], [SH4 Translator to use (if any)] );;

     *)

 	echo "Warning: No translator available for $host. Building emulation core only";;

 esac

 AM_CONDITIONAL(BUILD_SH4X86, [test "$SH4_TRANSLATOR" = "x86" -o "$SH4_TRANSLATOR" = "x86_64"])

 AM_CONDITIONAL(BUILD_X86_64, [test "$SH4_TRANSLATOR" = "x86_64"])

 dnl ------------------ Optional driver support -------------------

 dnl Check for esound

 PKG_CHECK_MODULES(ESOUND, [esound], [ 

      HAVE_ESOUND='yes'

      AC_DEFINE([HAVE_ESOUND],1,[Have esound support]) ], 

    [ echo "Warning: esound not found - building without esd audio support" ])

 AM_CONDITIONAL( AUDIO_ESOUND, [test "$HAVE_ESOUND" = 'yes'] )

 dnl Check for alsa support

 PKG_CHECK_MODULES(ALSA, [alsa], [ 

      HAVE_ALSA='yes'

      AC_DEFINE([HAVE_ALSA],1,[Have alsa support]) ], 

    [ echo "Warning: alsa not found - building without alsa audio support" ])

 AM_CONDITIONAL( AUDIO_ALSA, [test "$HAVE_ALSA" = 'yes'] )

 dnl Check for linux cdrom device support

 AC_CHECK_HEADER([linux/cdrom.h], [HAVE_LINUX_CDROM_H=yes], [

     echo "Linux CDROM support not found, building without it."]  )

 AM_CONDITIONAL(CDROM_LINUX, [test "$HAVE_LINUX_CDROM_H" = "yes"])

 AC_CHECK_HEADER([linux/joystick.h], [

     HAVE_LINUX_JOYSTICK_H=yes

     AC_DEFINE([HAVE_LINUX_JOYSTICK], 1, [Have linux joystick support]) ], 

   [ echo "Linux Joystick support not found, building without it."] )

 AM_CONDITIONAL(JOY_LINUX, [test "$HAVE_LINUX_JOYSTICK_H" = "yes"])

 dnl Check for cross-compiler availability - needed for system tests

 AC_PATH_PROG(SHCC, [sh-elf-gcc])

 AC_PATH_PROG(SHLD, [sh-elf-ld])

 AC_PATH_PROG(SHOBJCOPY, [sh-elf-objcopy])

 AC_PATH_PROG(ARMCC, [arm-elf-gcc])

 AC_PATH_PROG(ARMLD, [arm-elf-ld])

 AC_PATH_PROG(ARMOBJCOPY, [arm-elf-objcopy])

 if test "x$SHCC" = "x" -o "x$SHLD" = "x" -o "x$SHOBJCOPY" = "x"; then

   BUILD_SH="no"

   echo "Warning: SH4 cross-compiler not found, system tests will be disabled."

 else

   BUILD_SH="yes"

 fi

 if test "x$ARMCC" = "x" -o "x$ARMLD" = "x" -o "x$ARMOBJCOPY" = "x"; then

   BUILD_ARM="no"

   echo "Warning: ARM cross-compiler not found, AICA tests will be disabled."

 else

   BUILD_ARM="yes"

 fi

 AM_CONDITIONAL(BUILD_SYSTEST, [test "$BUILD_SH" = "yes"])

 AM_CONDITIONAL(BUILD_ARMTEST, [test "$BUILD_ARM" = "yes"])

 dnl ----------------------- All done, finish up -----------------------

 GETTEXT_PACKAGE=lxdream

 AC_SUBST(GETTEXT_PACKAGE)

 AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE",[translation domain])

 dnl Add the languages which your application supports here.

 ALL_LINGUAS="de pt_BR"

 AM_GLIB_GNU_GETTEXT

 AC_OUTPUT([

 Makefile

 src/Makefile

 po/Makefile.in

 test/Makefile

 ])