From 923d03e10cd1446e53e56c7659c1b8c35eb155b1 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 16 Jan 2019 00:48:42 +0000
Subject: [PATCH] Fixed a typo, missing `$`

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66833 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 4010e7b264..d22bba15e2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -155,7 +155,7 @@ test -z "$optflags" ||
     cflagspat="$cflagspat;s|"`eval echo '"'"${optflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
 test -z "$debugflags" ||
     cflagspat="$cflagspat;s|"`eval echo '"'"${debugflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
-test -z "warnflags" ||
+test -z "$warnflags" ||
     cflagspat="$cflagspat;s|"`eval echo '"'"${warnflags}"'"' | sed 's/[[][|.*]]/\\&/g;s/^ */ /;s/ *$/ /'`'| |g'
 AS_IF([test -z "${CFLAGS+set}"], [
     cflags=`echo " $cflags " | sed "$cflagspat;s/^ *//;s/ *$//"`