diff --git a/configure b/configure
index ebb7bdd87..73ac27d68 100755
--- a/configure
+++ b/configure
@@ -852,6 +852,9 @@ cat > $test.c <<EOF
 #ifndef _ARCH_PPC
   #error "Target is not Power"
 #endif
+#if !(defined(__PPC64__) || defined(__powerpc64__))
+  #error "Target is not 64 bits"
+#endif
 #ifndef HAVE_IFUNC
   #error "Target doesn't support ifunc"
 #endif