(tags): etags no longer supports the -t flag.

Use $(srcdir) for *.c and *.h.

src/server/Makefile.src

 #
-# $Id: Makefile.src,v 1.19 1994/04/05 20:27:06 ceder Exp $
+# $Id: Makefile.src,v 1.20 1994/06/18 18:52:41 ceder Exp $
 # Copyright (C) 1991, 1993, 1994  Lysator Academic Computer Association.
 #
 # This file is part of the LysKOM server.
@@ -122,10 +122,10 @@ fncdef-no-str-limit.txt: fncdef.txt
 
 tags:
 	$(RM) TAGS
-	etags -t $(INCLUDEDIR)/*.h *.h \
+	etags $(INCLUDEDIR)/*.h $(srcdir)/*.h \
 		@SRCTOPDIR@/src/libraries/libisc-new/src/*.h \
 		@SRCTOPDIR@/src/libraries/lib*/*.h \
-		*.c \
+		$(srcdir)/*.c \
 		@SRCTOPDIR@/src/libraries/libisc-new/src/*.c \
 		@SRCTOPDIR@/src/libraries/lib*/*.c