diff --git a/gcc/fixinc/tests/base/mach-o/dyld.h b/gcc/fixinc/tests/base/mach-o/dyld.h
new file mode 100644
index 00000000000..c0620312d34
--- /dev/null
+++ b/gcc/fixinc/tests/base/mach-o/dyld.h
@@ -0,0 +1,17 @@
+/*  DO NOT EDIT THIS FILE.
+
+    It has been auto-edited by fixincludes from:
+
+	"fixinc/tests/inc/mach-o/dyld.h"
+
+    This had to be done to correct non-standard usages in the
+    original, manufacturer supplied header file.  */
+
+
+
+#if defined( DARWIN_PRIVATE_EXTERN_CHECK )
+extern int _dyld_func_lookup(
+const char *dyld_func_name,
+unsigned long *address);
+
+#endif  /* DARWIN_PRIVATE_EXTERN_CHECK */