--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GEMBASSY-1.0.3/m4/lf_x11.m4	Fri Jun 26 05:19:29 2015 -0400
@@ -0,0 +1,78 @@
+dnl Copyright (C) 1988 Eleftherios Gkioulekas <lf@amath.washington.edu>
+dnl  
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl 
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl 
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software 
+dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+dnl 
+dnl As a special exception to the GNU General Public License, if you 
+dnl distribute this file as part of a program that contains a configuration 
+dnl script generated by Autoconf, you may include it under the same 
+dnl distribution terms that you use for the rest of that program.
+
+ 
+#-----------------------------------------------------------------------
+# This macro searches for Xlib and when it finds it it adds the 
+# appropriate flags to CFLAGS and export the link sequence to 
+# the variable XLIB. 
+# In your configure.in file add:
+#   LF_PATH_XLIB
+# In your Makefile.am add
+#   program_LDADD = .... $(XLIB)
+#------------------------------------------------------------------------
+#
+# Just added EMBOSS into LF_PATH_XLIB so that on the systems where
+# LF_PATH_XLIB exists there are no duplication errors.
+
+
+AC_DEFUN([LF_EMBOSS_PATH_XLIB],[
+  CFLAGS="$CFLAGS $X_CFLAGS"
+
+case $host_os in
+irix*)
+    XLIB="-lX11 $X_EXTRA_LIBS"
+    ;;
+*)
+    XLIB="$X_LIBS -lX11 $X_EXTRA_LIBS"
+    ;;
+esac
+
+  AC_SUBST([XLIB])
+
+AC_CHECK_HEADER(X11/Xlib.h,
+[
+	AC_DEFINE([PLD_xwin], [1], [Define to 1 if X11 support is available])
+],
+[
+	echo ""
+	echo "X11 graphics have been selected but no X11 header files"
+        echo "have been found."
+        echo ""
+        echo "This error usually happens on Linux/MacOSX distributions"
+	echo "where the optional X11 development files have not been installed."
+        echo "On Linux RPM systems this package is usually called something"
+        echo "like xorg-x11-proto-devel whereas on Debian/Ubuntu it may"
+        echo "be called x-dev. On MacOSX installation DVDs the X11 files"
+        echo "can usually be found as an explicitly named optional"
+        echo "installation."
+        echo ""
+        echo "After installing the X11 development files you should do a"
+        echo "'make clean' and perform the configure stage again."
+        echo ""
+        echo "Alternatively, to install EMBOSS without X11 support, you can add"
+        echo "the --without-x switch to the configure command."
+	echo ""
+        exit $?
+])
+
+])
+