From 405c61d80251d8e80401aed2264d4bede218cb22 Mon Sep 17 00:00:00 2001
From: joerg <joerg>
Date: Fri, 20 Mar 2009 19:23:50 +0000
Subject: Simply and speed up buildlink3.mk files and processing. This changes
 the buildlink3.mk files to use an include guard for the recursive include.
 The use of BUILDLINK_DEPTH, BUILDLINK_DEPENDS, BUILDLINK_PACKAGES and
 BUILDLINK_ORDER is handled by a single new variable BUILDLINK_TREE. Each
 buildlink3.mk file adds a pair of enter/exit marker, which can be used to
 reconstruct the tree and to determine first level includes. Avoiding := for
 large variables (BUILDLINK_ORDER) speeds up parse time as += has linear
 complexity. The include guard reduces system time by avoiding reading files
 over and over again. For complex packages this reduces both %user and %sys
 time to half of the former time.

---
 x11/tk83/buildlink3.mk | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

(limited to 'x11/tk83')

diff --git a/x11/tk83/buildlink3.mk b/x11/tk83/buildlink3.mk
index 4bcfd0245f0..e2511a7ed2d 100644
--- a/x11/tk83/buildlink3.mk
+++ b/x11/tk83/buildlink3.mk
@@ -1,17 +1,10 @@
-# $NetBSD: buildlink3.mk,v 1.9 2007/01/11 16:18:37 joerg Exp $
+# $NetBSD: buildlink3.mk,v 1.10 2009/03/20 19:25:51 joerg Exp $
 
-BUILDLINK_DEPTH:=	${BUILDLINK_DEPTH}+
-TK_BUILDLINK3_MK:=	${TK_BUILDLINK3_MK}+
+BUILDLINK_TREE+=	tk
 
-.if !empty(BUILDLINK_DEPTH:M+)
-BUILDLINK_DEPENDS+=	tk
-.endif
+.if !defined(TK_BUILDLINK3_MK)
+TK_BUILDLINK3_MK:=
 
-BUILDLINK_PACKAGES:=	${BUILDLINK_PACKAGES:Ntk}
-BUILDLINK_PACKAGES+=	tk
-BUILDLINK_ORDER:=	${BUILDLINK_ORDER} ${BUILDLINK_DEPTH}tk
-
-.if !empty(TK_BUILDLINK3_MK:M+)
 BUILDLINK_API_DEPENDS.tk+=		tk-8.3.4*
 BUILDLINK_ABI_DEPENDS.tk?=	tk>=8.3.4nb2
 BUILDLINK_PKGSRCDIR.tk?=	../../x11/tk83
@@ -22,11 +15,11 @@ BUILDLINK_FILES.tk=	bin/wish*
 # many Makefiles.
 #
 BUILDLINK_TRANSFORM+=	l:tk:tk83
-.endif	# TK_BUILDLINK3_MK
 
 TKCONFIG_SH?=	${BUILDLINK_PREFIX.tk}/lib/tkConfig.sh
 
 .include "../../lang/tcl83/buildlink3.mk"
 .include "../../x11/libX11/buildlink3.mk"
+.endif # TK_BUILDLINK3_MK
 
-BUILDLINK_DEPTH:=	${BUILDLINK_DEPTH:S/+$//}
+BUILDLINK_TREE+=	-tk
-- 
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