diff --git a/cmdargs.h b/cmdargs.h
new file mode 100644
index 000000000..8dc96f240
--- /dev/null
+++ b/cmdargs.h
@@ -0,0 +1,48 @@
+//
+// CMDLINE Argument External Definitions. A hack to make command line
+// argument values visible to affected program locations.
+//
+//  When implementing this feature my design intent was that program
+//  options should be set according to the following rules of
+//  option hierarchy.
+//
+//   1. Command line options have top priority.
+//   2. Environmental options over ride default options.
+//   3. All options must have a meaningful state. On a given platform,
+//      some option setting is most likely to be desired by that community.
+//
+// CHotchkiss 10 Feb 98
+//
+// $Id$
+// (Log is kept at end of this file)
+
+
+#ifndef _CMDARGS_H
+#define _CMDARGS_H
+
+// buffers here are all MAXPATH in length. IS THIS DEFINE UNIVERSAL?
+
+extern char  acArgbuf[];
+extern int   debugArgValue;
+extern int   priorityArgValue;
+extern char  rootArgbuf[];
+extern int   viewArg;
+extern char  logArgbuf[];
+
+// These are used by initialization and RE initialization routines
+// (none right now) to set up for running (or from warm reset.)
+
+extern const char *DefaultRootDir;
+extern const char *DefaultAircraft;
+extern const char *DefaultDebuglog;
+extern const int   DefaultViewMode;
+
+#endif
+// end of cmdargs.h
+
+
+// $Log$
+// Revision 1.1  1998/02/13 00:18:46  curt
+// Initial revision.
+//
+//