configure.ac: avoid GNU extension in "expr match" call

59a417fc · Max Kellermann · 76cddfab · 59a417fc
Commit 59a417fc authored Jan 07, 2011 by Max Kellermann
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pretty_print.m4 m4/pretty_print.m4 +1 -1

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--- a/m4/pretty_print.m4
+++ b/m4/pretty_print.m4
 AC_DEFUN([results], [
 	dnl This is a hack to allow "with" names, otherwise "enable".
-	num=`expr match $1 'with'`
+	num=`expr $1 : 'with'`
 	if test "$num" != "0"; then
 		var="`echo '$'$1`"
 	else