updated for version 7.3.719
Problem: Cannot run new version of cproto, it fails on missing include
files.
Solution: Add lots of #ifndef PROTO
diff --git a/src/os_unix.h b/src/os_unix.h
index 3bb9a89..3c9224c 100644
--- a/src/os_unix.h
+++ b/src/os_unix.h
@@ -198,6 +198,9 @@
# define HAVE_TOTAL_MEM
#endif
+
+#ifndef PROTO
+
#ifdef VMS
# include <unixio.h>
# include <unixlib.h>
@@ -226,7 +229,11 @@
# ifdef FEAT_GUI_GTK
# include "gui_gtk_vms.h"
# endif
+#endif
+#endif /* PROTO */
+
+#ifdef VMS
typedef struct dsc$descriptor DESC;
#endif