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+#
+# Copyright (C) 2004 Boretti Mathieu
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+#
+# AC_PROG_LATEX
+#
+# Test for latex or elatax or lambda
+# and set $latex to the correct value.
+#
+#
+dnl @synopsis AC_PROG_LATEX
+dnl
+dnl This macro test if latex is installed. If latex
+dnl is installed, it set $latex to the right value
+dnl
+dnl @version 1.3
+dnl @author Mathieu Boretti boretti@eig.unige.ch
+dnl
+AC_DEFUN([AC_PROG_LATEX],[
+AC_CHECK_PROGS(latex,[latex elatex lambda],no)
+export latex;
+if test $latex = "no" ;
+then
+ AC_MSG_ERROR([Unable to find a LaTeX application]);
+fi
+AC_SUBST(latex)
+])