--- /dev/null
+/* Sanity check for GNU-runtime version of constant strings,
+ regardless of runtime used on target system. */
+
+/* { dg-do run } */
+/* { dg-options "-fgnu-runtime" } */
+
+#include <objc/Object.h>
+#include <string.h>
+#include <stdlib.h>
+
+@interface NXConstantString: Object
+{
+ char *c_string;
+ unsigned int len;
+}
+-(const char *) cString;
+-(unsigned int) length;
+@end
+
+@implementation NXConstantString
+-(const char *) cString { return c_string; }
+-(unsigned int) length { return len; }
+@end
+
+int main(int argc, void **args)
+{
+ if (strcmp ([@"this is a string" cString], "this is a string"))
+ abort ();
+ return 0;
+}