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# ===========================================================================
# http://autoconf-archive.cryp.to/acltx_prog_latex.html
# ===========================================================================
#
# SYNOPSIS
#
# ACLTX_PROG_LATEX([ACTION-IF-NOT-FOUND])
#
# DESCRIPTION
#
# This macro find a latex application and set the variable latex to the
# name of the application or to no if not found if ACTION-IF-NOT-FOUND is
# not specified, configure fail when then application is not found.
#
# It is possible to set manually the program to use using latex=...
#
# LICENSE
#
# Copyright (c) 2008 Boretti Mathieu <boretti@eig.unige.ch>
#
# This library is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or (at
# your option) any later version.
#
# This library 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 Lesser
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library. If not, see <http://www.gnu.org/licenses/>.
AC_DEFUN([ACLTX_PROG_LATEX],[
AC_ARG_VAR(latex,[specify default latex application])
if test "$ac_cv_env_latex_set" = "set" ; then
AC_MSG_CHECKING([Checking for latex])
latex="$ac_cv_env_latex_value";
AC_MSG_RESULT([$latex (from parameter)])
else
AC_CHECK_PROGS(latex,[latex elatex lambda],no)
fi
if test $latex = "no" ;
then
ifelse($#,0,[AC_MSG_ERROR([Unable to find the latex application])],
$1)
fi])
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