diff --git a/src/auto/configure b/src/auto/configure
index 6c294eb..1056c0b 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -16051,7 +16051,7 @@
 DEPEND_CFLAGS_FILTER=
 if test "$GCC" = yes; then
   gccmajor=`"$CC" --version | sed -e '2,$d;s/^[^0-9]*\([3-9]\)\.[0-9.]*.*$/\1/g'`
-  if test "$gccmajor" = ""; then
+  if test "$gccmajor" != ""; then
     DEPEND_CFLAGS_FILTER="| sed 's+-I */+-isystem /+g'"
   fi
 fi