AC_PREREQ(2.59)
AC_INIT([The Mana World], [0.0.20.1], [elvenprogrammer@gmail.com], [tmw])
AC_CONFIG_HEADERS([config.h:config.h.in])
AC_LANG_CPLUSPLUS

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_MAKE_SET

# Checks for libraries
AC_CHECK_LIB([pthread], [pthread_create], ,
AC_MSG_ERROR([ *** Unable to find pthread library ]))

AC_CHECK_LIB([guichan], [gcnGuichanVersion], ,
AC_MSG_ERROR([ *** Unable to find Guichan library (guichan.sf.net)]))

#AC_CHECK_LIB([guichan_sdl], [gcnSDL], ,
#AC_MSG_ERROR([ *** Unable to find Guichan SDL library (guichan.sf.net)]))

#AC_CHECK_LIB([guichan_opengl], [gcnOpenGL], ,
#AC_MSG_ERROR([ *** Unable to find Guichan OpenGL library (guichan.sf.net)]))

AC_CHECK_LIB([physfs], [PHYSFS_init], ,
AC_MSG_ERROR([ *** Unable to find PhysFS library (icculus.org/physfs/)]))

AC_CHECK_LIB([curl], [curl_global_init], ,
AC_MSG_ERROR([ *** Unable to find CURL library (http://curl.haxx.se/)]))
CURL_LIBS=" `curl-config --libs`"
CURL_CFLAGS=" `curl-config --cflags` "
AC_SUBST(CURL_LIBS)
AC_SUBST(CURL_CFLAGS)

AC_CHECK_LIB([xml2], [xmlInitParser], ,
AC_MSG_ERROR([ *** Unable to find libxml2 library (xmlsoft.org)]))

AC_CHECK_LIB(SDL_image, IMG_LoadPNG_RW, ,
AC_MSG_ERROR([ *** Unable to find SDL_image library with PNG support
(http://www.libsdl.org/projects/SDL_image/)]))

AC_CHECK_LIB(SDL_mixer, Mix_OpenAudio, ,
AC_MSG_ERROR([ *** Unable to find SDL_mixer library
(http://www.libsdl.org/projects/SDL_mixer/)]))

AC_CHECK_LIB(SDL_net, SDLNet_Init, ,
AC_MSG_ERROR([ *** Unable to find SDL_net library]))

AC_CHECK_LIB(png, png_write_info, ,
AC_MSG_ERROR([ *** Unable to find png library]))

# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([arpa/inet.h fcntl.h malloc.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h unistd.h])

# Check for guichan headers
AC_CHECK_HEADERS([guichan.hpp], ,
AC_MSG_ERROR([*** Library found but cannot find headers (guichan.sf.net) *** ]))

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_CONST
AC_HEADER_TIME
AC_C_VOLATILE

# Checks for library functions.
AC_FUNC_ERROR_AT_LINE
AC_FUNC_MALLOC
AC_FUNC_REALLOC
AC_FUNC_SELECT_ARGTYPES
AC_FUNC_VPRINTF
AC_CHECK_FUNCS([atexit floor getcwd gethostbyname memset mkdir select socket])

AM_INIT_AUTOMAKE

# Option to enable OpenGL
AC_ARG_WITH(opengl,[  --with-opengl           use OpenGL ] )
if test "x$with_opengl" == "xyes"; then
    with_opengl=yes
    OPENGL_CFLAGS=' -DUSE_OPENGL'
    OPENGL_LIBS=' -lGL -lguichan_opengl'
    AC_SUBST(OPENGL_CFLAGS)
    AC_SUBST(OPENGL_LIBS)
else
    with_opengl=no
fi

# Search for sdl-config
AC_PATH_PROG(LIBSDL_CONFIG, sdl-config)

if test -n "$LIBSDL_CONFIG"; then
  LIBSDL_LIBS="`$LIBSDL_CONFIG --libs` -lSDL_image -lSDL_mixer"
  LIBSDL_CFLAGS="`$LIBSDL_CONFIG --cflags`"
  AC_SUBST(LIBSDL_LIBS)
  AC_SUBST(LIBSDL_CFLAGS)

  AC_DEFINE_UNQUOTED(HAVE_LIBSDL, 1,
                     [Defines if your system has the LIBSDL library])
else
  AC_DEFINE_UNQUOTED(HAVE_LIBSDL, 0,
                     [Defines if your system has the LIBSDL library])
  AC_MSG_ERROR([Could not find sdl-config, check http://www.libsdl.org])
fi

AC_CONFIG_FILES([
Makefile
src/Makefile
data/Makefile
data/graphics/Makefile
data/graphics/gui/Makefile
data/graphics/images/Makefile
data/graphics/sprites/Makefile
data/graphics/tiles/Makefile
data/help/Makefile
data/icons/Makefile
data/maps/Makefile
data/sfx/Makefile
docs/Makefile
])

AC_OUTPUT

echo
echo Build with OpenGL: $with_opengl
echo
echo configure complete, now type \"make\"
echo