Make --enable-gcc-warnings a no-op if not using gcc

diff --git a/configure.in b/configure.in
index f8f3e03b7b370a993d6911cc1b0a73e61e7eb15a..0b5cabc2bd0bc42ba1d93f609c125a78acbea5ec 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -559,7 +559,7 @@ AM_CONDITIONAL(OPENSSL, [test "$enable_openssl" != "no" && test "$have_openssl"
 
 # Add some more warnings which we use in development but not in the
 # released versions.  (Some relevant gcc versions can't handle these.)
-if test x$enable_gcc_warnings = xyes; then
+if test x$enable_gcc_warnings = xyes && test "$GCC" = "yes"; then
 
   AC_COMPILE_IFELSE(AC_LANG_PROGRAM([], [
 #if !defined(__GNUC__) || (__GNUC__ < 4)