--- a
+++ b/sys_compat.h
@@ -0,0 +1,30 @@
+/*
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  
+*/
+
+/* these are functions that have very different implementions in different systems, so we
+   define them here and implemement them in sys_ansi.c or sys_win.c */
+
+#ifndef SYS_COMPAT_H
+#define SYS_COMPAT_H
+
+
+char *panoBasenameOfExecutable(void);
+
+int panoTimeToStrWithTimeZone(char *sTime, int len, struct tm  *time) ;
+
+
+
+#endif