configure: check for $cxx before use
I broke this when adding checks for clang++.
Reported-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1447345789-840-1-git-send-email-jsnow@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/configure b/configure
index 46fd8bd..f75df4b 100755
--- a/configure
+++ b/configure
@@ -4435,7 +4435,8 @@
if test "$fortify_source" != "no"; then
if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
fortify_source="no";
- elif echo | $cxx -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
+ elif test -n "$cxx" &&
+ echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
fortify_source="no";
else
fortify_source="yes"
