##### http://autoconf-archive.cryp.to/ac_latex_package.html
#
# OBSOLETE MACRO
#
#   Replaced by ACLTX_PACKAGE.
#
# SYNOPSIS
#
#   AC_LATEX_PACKAGE(<package>,<class>,<variable>)
#
# DESCRIPTION
#
#   This macro test if package in <class> exists and set <variable> to
#   the right value
#
#    AC_LATEX_PACKAGE(varioref,book,vbook)
#    should set $vbook="yes"
#
#    AC_LATEX_PACKAGE(xyz,book,vbook)
#    should set $vbook="no"
#
# LAST MODIFICATION
#
#   2006-07-16
#
# COPYLEFT
#
#   Copyright (c) 2006 Boretti Mathieu <boretti@eig.unige.ch>
#
#   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.
#
#   As a special exception, the respective Autoconf Macro's copyright
#   owner gives unlimited permission to copy, distribute and modify the
#   configure scripts that are the output of Autoconf when processing
#   the Macro. You need not follow the terms of the GNU General Public
#   License when using or distributing such scripts, even though
#   portions of the text of the Macro appear in them. The GNU General
#   Public License (GPL) does govern all other use of the material that
#   constitutes the Autoconf Macro.
#
#   This special exception to the GPL applies to versions of the
#   Autoconf Macro released by the Autoconf Macro Archive. When you
#   make and distribute a modified version of the Autoconf Macro, you
#   may extend this special exception to the GPL to apply to your
#   modified version as well.

AC_DEFUN([AC_LATEX_PACKAGE],[
if test "$[ac_cv_latex_class_]translit($2,[-],[_])" = "" ;
then
	AC_LATEX_CLASS($2,boretti_classesansparametre)
	export boretti_classesansparametre;
else
	boretti_classesansparametre=$[ac_cv_latex_class_]translit($2,[-],[_]) ;
	export boretti_classesansparemetre;
fi;
if test $boretti_classesansparametre = "no" ;
then
    AC_MSG_ERROR([Unable to find $2 class])
fi
AC_CACHE_CHECK([for $1 in class $2],[ac_cv_latex_]translit($1,[-],[_])[_]translit($2,[-],[_]),[
_AC_LATEX_TEST([
\documentclass{$2}
\usepackage{$1}
\begin{document}
\end{document}
],[ac_cv_latex_]translit($1,[-],[_])[_]translit($2,[-],[_]))
])
$3=$[ac_cv_latex_]translit($1,[-],[_])[_]translit($2,[-],[_]); export $3;
AC_SUBST($3)
])