extract the pc (JB_PC) that we will land at. The pc is copied into ADDR.
This routine returns true on success */
-extern int
-get_longjmp_target PARAMS ((CORE_ADDR *));
+extern int get_longjmp_target (CORE_ADDR *);
#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)