/* Marcus Daniels <marcus@sysc.pdx.edu> says that SIGINFO is defined
on ptx4 but it is not a signal. Prevent process.c from doing the
wrong thing. */
-#undef SIGINFO
-
-/* Marcus Daniels <marcus@sysc.pdx.edu> says vfork does exist. */
-#define HAVE_VFORK
+#define BROKEN_SIGINFO
/* pae@dim.com (Phil Ernhardt) says this correction to
the definition in usg5-4.h is needed to prevent