AC_PREREQ([2.71])
AC_INIT([engine], [alpha])
AC_CONFIG_SRCDIR([src/engine.cpp])
AC_CONFIG_HEADERS([src/config.h])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([foreign subdir-objects])
AC_CONFIG_FILES([Makefile])

SDL_VERSION=2.0
AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
    sdl_prefix="$withval", sdl_prefix="")
AS_IF([test "x$sdl_prefix" = x], [
        PKG_CHECK_MODULES([SDL], [sdl2 >= $SDL_VERSION], [sdl_loaded=yes])
    ], [
        sdl_config="$sdl_prefix/bin/sdl2-config"
        SDL_CFLAGS=`"$sdl_config" --prefix="$sdl_prefix" --cflags`
        SDL_LIBS=`"$sdl_config" --prefix="$sdl_prefix" --libs`
        sdl_loaded=yes # TODO: check if sdl is present, check version
    ])
AS_IF([test "x$sdl_loaded" != xyes], [AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])])
DEPS_CFLAGS="$SDL_CFLAGS"
DEPS_LIBS="$SDL_LIBS"
AC_SUBST(DEPS_CFLAGS)
AC_SUBST(DEPS_LIBS)
# AC_DEFINE([ENABLE_NCURSES], [], [Enable ncurses])
# AC_CHECK_LIB([ncurses], [initscr])

AC_PROG_CXX
AC_TYPE_UINT32_T
AC_CHECK_FUNCS([floor setlocale])
AC_OUTPUT