dnl Process this file with autoconf to produce a configure script.
AC_INIT(Makefile.am)

AM_CONFIG_HEADER(config.h)

AM_INIT_AUTOMAKE(lbreakout,010315)

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_RANLIB

dnl Checks for libraries.
AC_CHECK_LIB(m, main,, AC_MSG_ERROR(lib math is needed))

dnl check SDL version
sdl_flag=""
AM_PATH_SDL(1.0.0,, AC_MSG_ERROR(lib SDL is needed))
CFLAGS="$CFLAGS $SDL_CFLAGS"
CXXFLAGS="$CXXFLAGS $SDL_CFLAGS"
LIBS="$LIBS $SDL_LIBS"
AM_PATH_SDL(1.1.5, sdl_flag="-DSDL_1_1_5",)
dnl AM_PATH_SDL(1.1.7, sdl_flag="",)
CFLAGS="$CFLAGS $sdl_flag"

dnl check for pthread
ac_save_LIBS="$LIBS"
thread_flag=""
dnl first look for -pthread
LIBS="$LIBS -pthread"
AC_TRY_LINK(
        [#include <pthread.h>],
        [ pthread_create((pthread_t*) 0,(pthread_attr_t*) 0, 0, 0); ],
        AC_MSG_RESULT("-pthread used...")
        thread_flag="-pthread",
        dnl now look for -lpthread
        AC_MSG_RESULT("checking for -lpthread...")
        LIBS="$ac_save_LIBS"
        AC_CHECK_LIB(
                pthread,
                pthread_create,
                thread_flag="-lpthread"
		AC_MSG_RESULT(yes),
                AC_MSG_ERROR([lib pthread is needed])
        )
)
LIBS="$ac_save_LIBS"
AC_SUBST(thread_flag)

dnl check sound
sound_flag="-DSOUND"
AC_ARG_ENABLE( sound,
[  --disable-sound         Disables sound], sound_flag="")
AC_SUBST(sound_flag)

dnl installation path
sdir=$datadir/games/lbreakout
hdir=/var/lib/games
inst_flag="-DSRC_DIR=\\\"$sdir/\\\""
hi_inst_flag="-DHI_DIR=\\\"$hdir/\\\""

AC_ARG_ENABLE( install,
[  --disable-install       No installation. Played from the source directory.], 
sdir=./ hdir=./ inst_flag="-DSRC_DIR=\\\"./\\\"" hi_inst_flag="-DHI_DIR=\\\"./\\\"")

AC_SUBST(inst_flag)
AC_SUBST(hi_inst_flag)
AC_SUBST(sdir)
AC_SUBST(hdir)

AC_OUTPUT(Makefile lbreakout/Makefile)