#
#  Permission is hereby granted, free of charge, to any person obtaining a
#  copy of this software and associated documentation files (the "Software"),
#  to deal in the Software without restriction, including without limitation
#  on the rights to use, copy, modify, merge, publish, distribute, sub
#  license, and/or sell copies of the Software, and to permit persons to whom
#  the Software is furnished to do so, subject to the following conditions:
#
#  The above copyright notice and this permission notice (including the next
#  paragraph) shall be included in all copies or substantial portions of the
#  Software.
#
#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#  FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
#  ADAM JACKSON BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
#  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
#  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

AC_PREREQ(2.60)
AC_INIT(libtbm, 1.1.0)
AC_USE_SYSTEM_EXTENSIONS
AC_CONFIG_SRCDIR([Makefile.am])
AM_INIT_AUTOMAKE([dist-bzip2])

AM_CONFIG_HEADER([config.h])

AC_DISABLE_STATIC
AC_PROG_LIBTOOL
AC_PROG_CC

AC_HEADER_STDC
AC_SYS_LARGEFILE
AC_FUNC_ALLOCA

# Enable quiet compiles on automake 1.11.
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

dnl Make sure the pkg-config macros are defined
m4_ifndef([PKG_PROG_PKG_CONFIG],
    [m4_fatal([Could not locate the pkg-config autoconf macros.
  These are usually located in /usr/share/aclocal/pkg.m4. If your macros
  are in a different location, try setting the environment variable
  ACLOCAL="aclocal -I/other/macro/dir" before running autoreconf.])])
PKG_PROG_PKG_CONFIG()

# set the dir for the tbm module
DEFAULT_BUFMGR_MODULE_PATH="${libdir}/bufmgr"
AC_ARG_WITH(bufmgr-module-path, AS_HELP_STRING([--with-bufmgr-module-path=PATH], [tbm bufmgr module dir]),
				[ BUFMGR_MODULE_PATH="$withval" ],
				[ BUFMGR_MODULE_PATH="${DEFAULT_BUFMGR_MODULE_PATH}" ])

# set the window system platform where the bufmgr initializes
AC_ARG_WITH(tbm-platform, AS_HELP_STRING([--with-tbm-platform=WINSYS], [tbm platform (default: X11)]),
				[ TBM_PLATFORM="$withval" ],
				[ TBM_PLATFORM="X11" ])
AC_SUBST(TBM_PLATFORM)

#AC_DEFINE(BUFMGR_MODULE_DIR, "${BUFMGR_MODULE_PATH}", [Directory for the modules of tbm_bufmgr])
AC_DEFINE_UNQUOTED(BUFMGR_MODULE_DIR, "${BUFMGR_MODULE_PATH}", [Directory for the modules of tbm_bufmgr])

AC_CHECK_FUNCS([clock_gettime], [CLOCK_LIB=],
               [AC_CHECK_LIB([rt], [clock_gettime], [CLOCK_LIB=-lrt],
                             [AC_MSG_ERROR([Couldn't find clock_gettime])])])
AC_SUBST([CLOCK_LIB])


if test "x$TBM_PLATFORM" = "xX11"; then
    PKG_CHECK_MODULES(LIBDRI2, libdri2)
    PKG_CHECK_MODULES(X11, x11)
    LIBTBM_CFLAGS="$LIBDRI2_CFLAGS $X11_CFLAGS"
    LIBTBM_LIBS="$LIBDRI2_LIBS $X11_LIBS"
fi

if test "x$TBM_PLATFORM" = "xWAYLAND"; then
    PKG_CHECK_MODULES(WAYLAND_CLIENT, wayland-client wayland-server)
    LIBTBM_CFLAGS="$WAYLAND_CLIENT_CFLAGS"
    LIBTBM_LIBS="$WAYLAND_CLIENT_LIBS"

	WAYLAND_PREFIX=`$PKG_CONFIG --variable=prefix wayland-client wayland-server`
    AC_PATH_PROG([WAYLAND_SCANNER], [wayland-scanner],,
		    [${WAYLAND_PREFIX}/bin$PATH_SEPARATOR$PATH])
fi

PKG_CHECK_MODULES(CAPI, [capi-base-common >= 0.1.1], [capi_0_1_1=yes], [capi_0_1_1=no])
if test x"$capi_0_1_1" = xyes; then
	AC_DEFINE(HAVE_CAPI_0_1_1,1,[The version of capi-base-common is over 0.1.1])
fi

PKG_CHECK_MODULES(LIBDRM, libdrm)
PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs)

LIBTBM_CFLAGS+="$LIBTBM_CFALGS $LIBDRM_CFLAGS $PTHREADSTUBS_CFLAGS $CAPI_CFLAGS"
LIBTBM_LIBS+="$LIBTBM_LIBS $LIBDRM_LIBS $PTHREADSTUBS_LIBS $CAPI_LIBS"
AC_SUBST(LIBTBM_CFLAGS)
AC_SUBST(LIBTBM_LIBS)

if test "x$TBM_PLATFORM" = "xX11"; then
	AC_DEFINE(HAVE_X11,1,[The window system is X11.])
else
	AC_DEFINE(HAVE_WAYLAND,1,[The window system is WAYLAND.])
fi

HOST_CPU_X86_64=no
case $host_cpu in
  x86_64*|amd64*)
    HOST_CPU_X86_64=yes
esac

AM_CONDITIONAL(HAVE_TBM_PLATFORM_X11, test "x$TBM_PLATFORM" = "xX11")
AM_CONDITIONAL(HAVE_TBM_PLATFORM_WAYLAND, test "x$TBM_PLATFORM" = "xWAYLAND")
AM_CONDITIONAL(HOST_CPU_X86_64, test "x$HOST_CPU_X86_64" = "xyes")

AC_OUTPUT([
   src/Makefile
	Makefile
	libtbm.pc])

echo ""
echo "CFLAGS            : $CFLAGS"
echo "LDFLAGS           : $LDFLAGS"
echo "LIBTBM_CFLAGS     : $LIBTBM_CFLAGS"
echo "LIBTBM_LIBS       : $LIBTBM_LIBS"
echo "BUFMGR_MODULE_DIR : $BUFMGR_MODULE_PATH"
echo "TBM_PLATFORM      : $TBM_PLATFORM"
echo ""