gcc/testsuite/gcc.dg/builtin-strstr.c - native_client/pnacl-gcc - Git at Google

 /* The strstr call is expanded to just "s", which should not result in a
    warning about discarding qualifiers in an assignment.  */
 /* { dg-do compile } */
 extern char * strstr (const char *s1, const char * s2);
 void foo(const char *s){
   char * cp;
   cp = strstr(s, "");
 }
	/* The strstr call is expanded to just "s", which should not result in a
	warning about discarding qualifiers in an assignment. */
	/* { dg-do compile } */
	extern char * strstr (const char s1, const char s2);
	void foo(const char *s){
	char * cp;
	cp = strstr(s, "");
	}