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# ===========================================================================
# http://autoconf-archive.cryp.to/acltx_converting_jpg_eps.html
# ===========================================================================
#
# SYNOPSIS
#
# ACLTX_CONVERTING_JPG_EPS([ACTION-IF-FOUND[,ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
# This macro find a way to convert jpg to eps file. If the way is found,
# set jpg_to_eps to this way else set jpg_to_eps to no.
#
# 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_CONVERTING_JPG_EPS],[
ACLTX_PROG_JPEGTOPNM([AC_MSG_WARN([Unable to locate a jpegtopnm application to convert jpg file])])
ACLTX_PROG_PNMTOPS([AC_MSG_WARN([Unable to locate a pnmtops application to convert jpg file])])
AC_MSG_CHECKING(for a way to convert jpg file to eps file)
jpg_to_eps='no'; export jpg_to_eps;
if test "$jpegtopnm" != "no" -a "$pnmtops" != "no" ; then
jpg_to_eps="%.eps : %.jpg ; $jpegtopnm \[$]*.jpg | pnmtops -noturn -nocenter -scale 1.00 - >\[$]*.eps"
fi;
AC_MSG_RESULT($jpg_to_eps)
AC_SUBST(jpg_to_eps)
ifelse($#,0,[],$#,1,[
if test "$jpg_to_eps" = "yes" ;
then
$1
fi
],$#,2,[
ifelse($1,[],[
if test "$jpg_to_eps" = "no" ;
then
$2
fi
],[
if test "$jpg_to_eps" = "yes" ;
then
$1
else
$2
fi
])
])
])
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