AC_PREREQ(2.59)
AC_INIT([The Mana World], [0.1.0], [elvenprogrammer@gmail.com], [tmw])
AM_INIT_AUTOMAKE
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 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])

# Search for *-config
AC_PATH_PROG(SDL_CONFIG, sdl-config)
AC_PATH_PROG(PKG_CONFIG, pkg-config)
AC_PATH_PROG(CURL_CONFIG, curl-config)

# 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 (http://guichan.sf.net/)]))
AC_CHECK_HEADERS([guichan.hpp], ,
AC_MSG_ERROR([ *** Guichan library found but cannot find headers (http://guichan.sf.net/)]))

if test -n "$SDL_CONFIG"; then
    LIBS="$LIBS `$SDL_CONFIG --libs`"
    CPPFLAGS="$CPPFLAGS `$SDL_CONFIG --cflags`"
fi
AC_CHECK_LIB([SDL], [SDL_Init], ,
AC_MSG_ERROR([ *** Unable to find SDL library (http://www.libsdl.org/)]))
AC_CHECK_HEADERS([SDL.h], ,
AC_MSG_ERROR([ *** SDL library found but cannot find headers (http://www.libsdl.org/)]))

AC_CHECK_LIB([z], [inflate], ,
AC_MSG_ERROR([ *** Unable to find zlib (http://www.gzip.org/zlib/)]))

AC_CHECK_LIB([physfs], [PHYSFS_init], ,
AC_MSG_ERROR([ *** Unable to find PhysFS library (http://icculus.org/physfs/)]))
AC_CHECK_HEADERS([physfs.h], ,
AC_MSG_ERROR([ *** PhysFS library found but cannot find headers (http://icculus.org/physfs/)]))

if test -n "$CURL_CONFIG"; then
    LIBS="$LIBS `$CURL_CONFIG --libs`"
    CPPFLAGS="$CPPFLAGS `$CURL_CONFIG --cflags`"
fi
AC_CHECK_LIB([curl], [curl_global_init], ,
AC_MSG_ERROR([ *** Unable to find CURL library (http://curl.haxx.se/)]))
AC_CHECK_HEADERS([curl/curl.h], ,
AC_MSG_ERROR([ *** CURL library found but cannot find headers (http://curl.haxx.se/)]))

if test -n "$PKG_CONFIG"; then
    LIBS="$LIBS `$PKG_CONFIG --libs libxml-2.0`"
    CPPFLAGS="$CPPFLAGS `$PKG_CONFIG --cflags libxml-2.0`"
fi
AC_CHECK_LIB([xml2], [xmlInitParser], ,
AC_MSG_ERROR([ *** Unable to find libxml2 library (http://xmlsoft.org/)]))
AC_CHECK_HEADERS([libxml/xmlreader.h], ,
AC_MSG_ERROR([ *** libxml2 library found but cannot find headers (http://xmlsoft.org/)]))

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

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([guichan_sdl], [gcnSDL], ,
AC_MSG_ERROR([ *** Unable to find Guichan SDL library (http://guichan.sf.net/)]))

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([enet], [enet_initialize], ,
AC_MSG_ERROR([ *** Unable to find enet library (http://enet.bespin.org/)]))

# 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])

# Option to enable OpenGL
AC_ARG_WITH(opengl, AS_HELP_STRING([--with-opengl],[use OpenGL (default is no)]))
if test "x$with_opengl" == "xyes"; then
    AC_CHECK_LIB([GL], [glBegin], ,
    AC_MSG_ERROR([ *** Unable to find OpenGL library]))
    AC_CHECK_LIB([guichan_opengl], [gcnOpenGL], ,
    AC_MSG_ERROR([ *** Unable to find Guichan OpenGL library (guichan.sf.net)]))
    AC_DEFINE(USE_OPENGL, 1, [Defines if tmw should use an OpenGL display])
else
    with_opengl=no
fi

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

AC_OUTPUT

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