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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_prog_fig2dev.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PROG_FIG2DEV
#
# DESCRIPTION
#
# If `fig2dev' is found, sets the output variable `FIG2DEV' to `fig2dev',
# and `FIG2DEV_ESPLANG' to the graphics language which can be used to
# produce Encapsulated PostScript. Older versions of `fig2dev' produce EPS
# with `-Lps' and new versions with `-Leps', this macro finds out the
# correct language option automatically.
#
# LICENSE
#
# Copyright (c) 2008 Ville Laurikari <vl@iki.fi>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 7
AU_ALIAS([VL_PROG_FIG2DEV], [AX_PROG_FIG2DEV])
AC_DEFUN([AX_PROG_FIG2DEV], [
AC_CHECK_PROG(FIG2DEV, fig2dev, fig2dev)
if test "x$FIG2DEV" != "x"; then
AC_CACHE_CHECK(how to produce EPS with fig2dev,
ax_cv_sys_fig2dev_epslang, [
if "$FIG2DEV" -Leps /dev/null 2>&1 | grep Unknown > /dev/null; then
ax_cv_sys_fig2dev_epslang=ps
else
ax_cv_sys_fig2dev_epslang=eps
fi
])
FIG2DEV_EPSLANG=$ax_cv_sys_fig2dev_epslang
AC_SUBST(FIG2DEV_EPSLANG)
fi
])
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