From df065781ee913681ba86a636a2516cb0162cab19 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Thu, 18 Jul 2013 20:37:19 -0400
Subject: fix invalid C in new trycppif tests in configure script

an empty program is not valid and would be reasonable grounds for the
compiler to give an error, which would break these tests.
---
 configure | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 042c41bd..b679986f 100755
--- a/configure
+++ b/configure
@@ -56,7 +56,8 @@ while eval "fnmatch '*/' \"\${$1}\"" ; do eval "$1=\${$1%/}" ; done
 
 trycppif () {
 printf "checking preprocessor condition %s... " "$1"
-echo "#if $1" > "$tmpc"
+echo "typedef int x;" > "$tmpc"
+echo "#if $1" >> "$tmpc"
 echo "#error yes" >> "$tmpc"
 echo "#endif" >> "$tmpc"
 if $CC $2 -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
-- 
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