From 198e557c5586aeb2e1ffe06e7db1c974950d470c Mon Sep 17 00:00:00 2001
From: bwarken <bwarken>
Date: Sun, 14 Apr 2013 23:11:00 +0000
Subject: Add Perl test to the configuration.

---
 m4/groff.m4 | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'm4')

diff --git a/m4/groff.m4 b/m4/groff.m4
index cf105b2f..6f751ffd 100644
--- a/m4/groff.m4
+++ b/m4/groff.m4
@@ -2,7 +2,7 @@
 # Copyright (C) 1989-1995, 2001-2007, 2009, 2011, 2013
 #   Free Software Foundation, Inc.
 #
-# Last update: 28 Mar 2013
+# Last update: 14 Apr 2013
 #
 # This file is part of groff.
 #
@@ -58,6 +58,19 @@ AC_DEFUN([GROFF_PRINT],
 AC_DEFUN([GROFF_PROG_YACC],
   [AC_CHECK_PROGS([YACC], [byacc 'bison -y'], [yacc])])
 
+
+# We need Perl 5.6.1 or newer.
+
+AC_DEFUN([GROFF_PERL],
+	[PERLVERSION=v5.6.1
+	AC_PATH_PROG([PERL], [perl], [no])
+	if test "$PERL" = "no"; then
+	  AC_MSG_ERROR([perl binary not found], 1)
+	fi
+        AX_PROG_PERL_VERSION([$PERLVERSION], PERLPATH=$PERL, \
+          AC_MSG_ERROR([perl version is too old], 1))])
+
+
 # We need makeinfo 4.8 or newer.
 
 AC_DEFUN([GROFF_MAKEINFO],
-- 
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