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.
22 lines
581 B
Makefile
22 lines
581 B
Makefile
# $NetBSD: buildlink3.mk,v 1.21 2009/03/20 19:25:10 joerg Exp $
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.include "../../mk/bsd.fast.prefs.mk"
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BUILDLINK_TREE+= libpcap
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.if !defined(LIBPCAP_BUILDLINK3_MK)
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LIBPCAP_BUILDLINK3_MK:=
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# XXX?
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BUILDLINK_API_DEPENDS.libpcap+= libpcap>=0.5.0
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BUILDLINK_PKGSRCDIR.libpcap?= ../../net/libpcap
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# on Solaris, we always need libnsl and libsocket because libpcap.a
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# references symbols in them.
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. if ${OPSYS} == "SunOS"
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BUILDLINK_LDADD.libpcap+= -lnsl -lsocket
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BUILDLINK_LDFLAGS.libpcap?= ${BUILDLINK_LDADD.libpcap}
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. endif
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.endif # LIBPCAP_BUILDLINK3_MK
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BUILDLINK_TREE+= -libpcap
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