From 75fb5bb7e7604eb9547fecf17d31c5f8f7bc55fd 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.

---
 textproc/py-xml/buildlink3.mk | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

(limited to 'textproc/py-xml')

diff --git a/textproc/py-xml/buildlink3.mk b/textproc/py-xml/buildlink3.mk
index 3a8fe4c9b2d..94abda313b3 100644
--- a/textproc/py-xml/buildlink3.mk
+++ b/textproc/py-xml/buildlink3.mk
@@ -1,24 +1,17 @@
-# $NetBSD: buildlink3.mk,v 1.12 2009/03/20 17:30:12 joerg Exp $
+# $NetBSD: buildlink3.mk,v 1.13 2009/03/20 19:25:32 joerg Exp $
 
-BUILDLINK_DEPTH:=	${BUILDLINK_DEPTH}+
-PYXML_BUILDLINK3_MK:=	${PYXML_BUILDLINK3_MK}+
+BUILDLINK_TREE+=	pyxml
 
-.if !empty(BUILDLINK_DEPTH:M+)
-BUILDLINK_DEPENDS+=	pyxml
-.endif
+.if !defined(PYXML_BUILDLINK3_MK)
+PYXML_BUILDLINK3_MK:=
 
-BUILDLINK_PACKAGES:=	${BUILDLINK_PACKAGES:Npyxml}
-BUILDLINK_PACKAGES+=	pyxml
-BUILDLINK_ORDER:=	${BUILDLINK_ORDER} ${BUILDLINK_DEPTH}pyxml
-
-.if !empty(PYXML_BUILDLINK3_MK:M+)
 .include "../../lang/python/pyversion.mk"
 
 BUILDLINK_API_DEPENDS.pyxml+=	${PYPKGPREFIX}-xml>=0.8.3nb1
 BUILDLINK_ABI_DEPENDS.pyxml?=	${PYPKGPREFIX}-xml>=0.8.4nb2
 BUILDLINK_PKGSRCDIR.pyxml?=	../../textproc/py-xml
-.endif	# PYXML_BUILDLINK3_MK
 
 .include "../../textproc/expat/buildlink3.mk"
+.endif # PYXML_BUILDLINK3_MK
 
-BUILDLINK_DEPTH:=	${BUILDLINK_DEPTH:S/+$//}
+BUILDLINK_TREE+=	-pyxml
-- 
cgit v1.2.3