patch for no rlimit

[Wayne Davison <wayne@xxxxxxxxx>]

I finally recompiled zsh on an old SCO system (which I don't use that much)
and had to #ifdef a call to setlimits() to get it to compile.  I also put
an #ifdef around an unused variable in init.c to remove a warning.

..wayne..
---8<------8<------8<------8<---cut here--->8------>8------>8------>8---
Index: exec.c
@@ -1686,8 +1686,10 @@
 	    }
 	    if (type == SIMPLE) {
 		closem(1);
+#ifdef HAVE_GETRLIMIT
 		if (!forked)
 		    setlimits(NULL);
+#endif
 		execute((Cmdnam) hn, cflags & BINF_DASH);
 	    } else {		/* ( ... ) */
 		list_pipe = 0;
Index: init.c
@@ -466,7 +466,9 @@
     struct passwd *pswd;
     struct timezone dummy_tz;
     char *ptr;
+#ifdef HAVE_GETRLIMIT
     int i;
+#endif
 
     noeval = 0;
     curhist = 0;
---8<------8<------8<------8<---cut here--->8------>8------>8------>8---