$OpenBSD: patch-xdrawchem_application_cpp,v 1.1.1.1 2007/01/23 15:43:05 ajacoutot Exp $
--- xdrawchem/application.cpp.orig	Tue Jan 16 16:05:03 2007
+++ xdrawchem/application.cpp	Tue Jan 16 16:05:40 2007
@@ -58,6 +58,7 @@ using std::endl;
 #ifdef UNIX
 #include <stdlib.h>
 #include <time.h>
+#include <unistd.h>
 #endif
 
 #include "defs.h"