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# ===========================================================================
# http://autoconf-archive.cryp.to/acltx_package_amsmath.html
# ===========================================================================
#
# SYNOPSIS
#
# ACLTX_PACKAGE_AMSMATH
#
# DESCRIPTION
#
# This macro check for a way to include amsmath and set amsmath to this
# way
#
# 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_PACKAGE_AMSMATH],[
AC_REQUIRE([ACLTX_DEFAULT_CLASS])
AC_CACHE_CHECK([for amsmath],[ac_cv_latex_package_f_amsmath],[
_ACLTX_TEST([\documentclass{$defaultclass}
\usepackage{amsmath,amsfonts}
\begin{document}
\end{document}],[ac_cv_latex_package_f_amsmath])
if test $ac_cv_latex_package_f_amsmath = "yes" ;
then
[ac_cv_latex_package_f_amsmath]="\\usepackage{amsmath,amsfonts}" ; export [ac_cv_latex_package_f_amsmath] ;
else
_ACLTX_TEST([
\documentclass{$defaultclass}
\usepackage{amstex}
\begin{document}
\end{document}
],[ac_cv_latex_package_f_amsmath])
if test $ac_cv_latex_package_f_amsmath = "yes" ;
then
[ac_cv_latex_package_f_amsmath]="\\usepackage{amstex}" ; export [ac_cv_latex_package_f_amsmath] ;
else
AC_MSG_ERROR([Unable to find amsmath])
fi
fi
])
amsmath=$[ac_cv_latex_package_f_amsmath]; export amsmath;
AC_SUBST(amsmath)
])
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