https://bugs.gentoo.org/899832

--- a/configure.in
+++ b/configure.in
@@ -77,7 +77,7 @@ int main()
   int i;
   for (i=0; i < B; i++)
     Array[[i]] = i - 3;
-  exit (Array[[1]] != -2);
+  return (Array[[1]] != -2);
 }],
     ac_cv_c_gcc_strength_bug="no",
     ac_cv_c_gcc_strength_bug="yes",