(get_lim_data): Handle NO_LIM_DATA.

src/mem-limits.h

@@ -98,6 +98,14 @@ static POINTER data_space_start;
 /* Number of bytes of writable memory we can expect to be able to get */
 static unsigned int lim_data;
 
+#ifdef NO_LIM_DATA
+static void
+get_lim_data ()
+{
+  lim_data = -1;
+}
+#else /* not NO_LIM_DATA */
+
 #ifdef USG
 
 static void
@@ -157,3 +165,4 @@ get_lim_data ()
 }
 #endif /* BSD4_2 */
 #endif /* not USG */
+#endif /* not NO_LIM_DATA */