dnl Process this file with autoconf to produce a configure script.
AC_INIT(src/billard3d.c)

AM_INIT_AUTOMAKE(foobillard, 2.9)
AM_CONFIG_HEADER(src/config.h)

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_INSTALL

dnl Checks for libraries.

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(limits.h unistd.h math.h stdlib.h stdio.h ft2build.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE

AC_PATH_XTRA

dnl Checks for library functions.
AC_CHECK_FUNCS(socket poll)


dnl Check for SDL-stuff

AC_ARG_ENABLE(SDL, 
              [  --enable-SDL            use SDL-lib instead of glut (default)],
              [export USE_SDL=yes], [export USE_SDL=no])
              
AC_ARG_ENABLE(glut, 
              [  --enable-glut           use glut instead of SDL-lib],
              [export USE_SDL=no], [export USE_SDL=yes])
              
AC_ARG_ENABLE(debug, 
              [  --enable-debug          compile in debug messages],
              [export USE_DEBUG=yes], [export USE_DEBUG=no])
              
AC_ARG_ENABLE(nvidia, 
              [  --enable-nvidia[=ARG]   enable NV-extensions [default=yes] ],
              [ if   test "x$enableval" = "xyes" ; then
                   export USE_NVIDIA=yes
                elif 	test "x$enableval" = "xon" ; then
                   export USE_NVIDIA=yes
                elif 	test "x$enableval" = "xoff" ; then
                   export USE_NVIDIA=no
                elif 	test "x$enableval" = "xno" ; then
                   export USE_NVIDIA=no
                else
                   export USE_NVIDIA=yes
                fi
              ],
              [export USE_NVIDIA=yes])
              
AC_ARG_ENABLE(sound, 
              [  --enable-sound[=ARG]    enable sound [default=yes] ],
              [ if   test "x$enableval" = "xyes" ; then
                   export USE_SOUND=yes
                elif 	test "x$enableval" = "xon" ; then
                   export USE_SOUND=yes
                elif 	test "x$enableval" = "xoff" ; then
                   export USE_SOUND=no
                elif 	test "x$enableval" = "xno" ; then
                   export USE_SOUND=no
                else
                   export USE_SOUND=yes
                fi
              ],
              [export USE_SOUND=yes])
              
#AC_ARG_ENABLE(SDL,
#              AC_HELP_STRING([--enable-SDL],[use SDL-lib instead of glut (default no)]),
#	      [case "${enableval}" in
#                yes) USE_SDL=$HAVE_SDL ;;
#                no)  USE_SDL=no ;;
#                *) AC_MSG_ERROR(bad value ${enableval} for --enable-SDL) ;;
#              esac], 
#              [USE_SDL=no) dnl Default value

AM_CONDITIONAL(USE_DEBUG, test "x$USE_DEBUG" = "xyes")

AM_CONDITIONAL(USE_SDL, test "x$USE_SDL" = "xyes")

AM_CONDITIONAL(USE_NVIDIA, test "x$USE_NVIDIA" = "xyes")

AM_CONDITIONAL(USE_SOUND, test "x$USE_SOUND" = "xyes")

AC_OUTPUT(Makefile 
          foobillard.spec 
	  foobillard-SDL.spec 
	  src/Makefile 
	  data/Makefile )