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.

---
 databases/db3/buildlink3.mk | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

(limited to 'databases/db3')

diff --git a/databases/db3/buildlink3.mk b/databases/db3/buildlink3.mk
index 7413120912c..f5305c69e68 100644
--- a/databases/db3/buildlink3.mk
+++ b/databases/db3/buildlink3.mk
@@ -1,17 +1,10 @@
-# $NetBSD: buildlink3.mk,v 1.21 2006/12/12 21:52:35 joerg Exp $
+# $NetBSD: buildlink3.mk,v 1.22 2009/03/20 19:24:04 joerg Exp $
 
-BUILDLINK_DEPTH:=	${BUILDLINK_DEPTH}+
-DB3_BUILDLINK3_MK:=	${DB3_BUILDLINK3_MK}+
+BUILDLINK_TREE+=	db3
 
-.if !empty(BUILDLINK_DEPTH:M+)
-BUILDLINK_DEPENDS+=	db3
-.endif
+.if !defined(DB3_BUILDLINK3_MK)
+DB3_BUILDLINK3_MK:=
 
-BUILDLINK_PACKAGES:=	${BUILDLINK_PACKAGES:Ndb3}
-BUILDLINK_PACKAGES+=	db3
-BUILDLINK_ORDER:=	${BUILDLINK_ORDER} ${BUILDLINK_DEPTH}db3
-
-.if !empty(DB3_BUILDLINK3_MK:M+)
 BUILDLINK_API_DEPENDS.db3+=		db3>=2.9.2
 BUILDLINK_ABI_DEPENDS.db3+=	db3>=3.11.2nb3
 BUILDLINK_PKGSRCDIR.db3?=	../../databases/db3
@@ -24,8 +17,8 @@ BUILDLINK_TRANSFORM+=		l:db-3:db3
 BUILDLINK_LIBS.db3=		${BUILDLINK_LDADD.db3}
 BUILDLINK_TRANSFORM+=		l:db:db3
 .  endif
-.endif	# DB3_BUILDLINK3_MK
 
 .include "../../mk/pthread.buildlink3.mk"
+.endif # DB3_BUILDLINK3_MK
 
-BUILDLINK_DEPTH:=	${BUILDLINK_DEPTH:S/+$//}
+BUILDLINK_TREE+=	-db3
-- 
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