Oracle Bug 14965260 - SUNBT4152296 REGRESSION: setting XmNpacking resource of
    XmRowColumn widget causes core dump

The reason we are getting a core is that freed memeory is being accessed.
XmNargv (RCLayout.c) resource has been freed but this only occurs when using
dtksh.

The problem arises when XtInitialize is passed 0 as argc, and argv value of
NULL, the XmNargv resource is being set to invalid address.

Do a check in the XtOpenApplication function (Initialize.c) for a valid
argv before setting XtNargv resource.

Need to evaluate for submission upstream.

--- a/src/Initialize.c	2022-11-07 19:18:10.104481416 -0800
+++ b/src/Initialize.c	2022-11-07 19:18:57.904521930 -0800
@@ -1025,11 +1025,15 @@
     LOCK_APP(app_con);
     XtSetArg(args[num], XtNscreen, DefaultScreenOfDisplay(dpy));
     num++;
-    XtSetArg(args[num], XtNargc, saved_argc);
-    num++;
-    XtSetArg(args[num], XtNargv, argv_in_out);
-    num++;
 
+    /* only set argc and argv if argv_in_out[0] is not NULL */
+    if (argv_in_out && argv_in_out[0]) {
+       XtSetArg(args[num], XtNargc, saved_argc);
+       num++;
+       XtSetArg(args[num], XtNargv, argv_in_out);
+       num++;
+    }
+
     merged_args = XtMergeArgLists(args_in, num_args_in, args, num);
     num += num_args_in;