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.

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

(limited to 'print/ghostscript/buildlink3.mk')

diff --git a/print/ghostscript/buildlink3.mk b/print/ghostscript/buildlink3.mk
index 2003a0c9a7a..251f45d5203 100644
--- a/print/ghostscript/buildlink3.mk
+++ b/print/ghostscript/buildlink3.mk
@@ -1,20 +1,12 @@
-# $NetBSD: buildlink3.mk,v 1.1 2008/09/03 21:31:12 markd Exp $
+# $NetBSD: buildlink3.mk,v 1.2 2009/03/20 19:25:14 joerg Exp $
 
-BUILDLINK_DEPTH:=		${BUILDLINK_DEPTH}+
-GHOSTSCRIPT_BUILDLINK3_MK:=	${GHOSTSCRIPT_BUILDLINK3_MK}+
+BUILDLINK_TREE+=	ghostscript
 
-.if ${BUILDLINK_DEPTH} == "+"
-BUILDLINK_DEPENDS+=	ghostscript
-.endif
-
-BUILDLINK_PACKAGES:=	${BUILDLINK_PACKAGES:Nghostscript}
-BUILDLINK_PACKAGES+=	ghostscript
-BUILDLINK_ORDER:=	${BUILDLINK_ORDER} ${BUILDLINK_DEPTH}ghostscript
+.if !defined(GHOSTSCRIPT_BUILDLINK3_MK)
+GHOSTSCRIPT_BUILDLINK3_MK:=
 
-.if ${GHOSTSCRIPT_BUILDLINK3_MK} == "+"
 BUILDLINK_API_DEPENDS.ghostscript+=	ghostscript>=8.63nb1
 BUILDLINK_PKGSRCDIR.ghostscript?=	../../print/ghostscript
-.endif	# GHOSTSCRIPT_BUILDLINK3_MK
 
 .include "../../graphics/png/buildlink3.mk"
 .include "../../devel/zlib/buildlink3.mk"
@@ -35,5 +27,6 @@ pkgbase := ghostscript
 .include "../../x11/libXt/buildlink3.mk"
 .include "../../x11/libXext/buildlink3.mk"
 .endif
+.endif # GHOSTSCRIPT_BUILDLINK3_MK
 
-BUILDLINK_DEPTH:=		${BUILDLINK_DEPTH:S/+$//}
+BUILDLINK_TREE+=	-ghostscript
-- 
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