dnl Process this file with autoconf to produce a configure script.

AC_INIT(dtr, 1.0.6, taw27@cam.ac.uk)
VERSION=AC_PACKAGE_VERSION

AM_CONFIG_HEADER(config.h)
AM_INIT_AUTOMAKE(dtr, "$VERSION")

AC_PROG_CC
AC_PROG_AWK
AC_PROG_INSTALL
AC_PROG_LN_S

AC_HEADER_STDC
AC_CHECK_HEADERS([fcntl.h stdlib.h string.h unistd.h])
AC_C_CONST
AC_FUNC_MALLOC
AC_FUNC_FORK
AC_HEADER_SYS_WAIT
AC_TYPE_SIGNAL
AC_TYPE_PID_T
AC_CHECK_FUNCS([strdup])
AC_CHECK_FUNCS([floor])
AC_CHECK_FUNCS([pow])
AC_CHECK_FUNCS([rint])
AC_CHECK_FUNCS([sqrt])

AM_PATH_GTK_2_0(2.6.0,,AC_MSG_ERROR([
*** GTK+ 2.6.0 or above is required by dtr.  Please make sure you have the GTK+
*** development files installed. The latest version of GTK+ is
*** always available at http://www.gtk.org/.]))

dnl AC_CHECK_LIB([fftw3], [fftw_execute])
AC_CHECK_LIB(m,main)
AC_CHECK_LIB(gsl,main)
AC_CHECK_LIB(gslcblas,main)

AM_PATH_GTKGLEXT_1_0(1.0.0,[echo "$GTKGLEXT_LIBS"],AC_MSG_ERROR([
 	*** gtkglext is required to build dtr; please make sure you have the
 	*** gtkglext development headers installed.]))

AC_MSG_CHECKING([Cairo version 1.2.0])
if $PKG_CONFIG --atleast-version 1.2.0 cairo ; then
	CAIRO_VERSION=`$PKG_CONFIG --modversion cairo`
	CAIRO_CFLAGS=`$PKG_CONFIG --cflags cairo`
	CAIRO_LIBS=`$PKG_CONFIG --libs cairo`
	AC_DEFINE([HAVE_CAIRO], [1], [Define to 1 if Cairo is available])
	AC_MSG_RESULT($CAIRO_VERSION)
else
	AC_MSG_RESULT([not found.  Some functions will be unavailable.])
fi

AC_OUTPUT(Makefile src/Makefile data/Makefile)