Lots of little tweaks to fix various consistency problems discovered by

Solaris' CC.  Fixed a bug in fg_debug.c with how the fgPrintf() wrapper
passed arguments along to the real printf().  Also incorporated HUD changes
by Michele America.

XGL/xglUtils.c

@@ -12,6 +12,8 @@
 #  include <unistd.h>
 #endif
 
+#include <string.h>
+
 #include "xgl.h"
 
 #ifndef TRUE