Resolve many build warnings

This patch fixes many warnings from the beginning of the build up to
and including the depend stage. Nearly all warnings should be gone
even with -Wall.

cde/programs/localized/templates/header2.tmpl

@@ -91,5 +91,3 @@ includes::								@@\
 
 MAKEMESSCAT = $(KORNSHELL) $(CDESRC)/localized/util/makeMessCat
 SYM2NUM_CMD = $(KORNSHELL) $(CDESRC)/dtprintinfo/sym2num
-
-MsgCatRule()