2d1ba244e9
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.
14 lines
329 B
Makefile
14 lines
329 B
Makefile
# $NetBSD: buildlink3.mk,v 1.2 2009/03/20 19:24:49 joerg Exp $
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BUILDLINK_TREE+= gambc
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.if !defined(GAMBC_BUILDLINK3_MK)
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GAMBC_BUILDLINK3_MK:=
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BUILDLINK_API_DEPENDS.gambc+= gambc>=4.2.6
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BUILDLINK_PKGSRCDIR.gambc?= ../../lang/gambc
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.include "../../mk/dlopen.buildlink3.mk"
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.endif # GAMBC_BUILDLINK3_MK
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BUILDLINK_TREE+= -gambc
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