pkgsrc/lang/gcc/buildlink3.mk
joerg 2d1ba244e9 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.
2009-03-20 19:23:50 +00:00

25 lines
668 B
Makefile

# $NetBSD: buildlink3.mk,v 1.14 2009/03/20 19:24:49 joerg Exp $
.include "../../mk/bsd.fast.prefs.mk"
BUILDLINK_TREE+= gcc
.if !defined(GCC_BUILDLINK3_MK)
GCC_BUILDLINK3_MK:=
BUILDLINK_API_DEPENDS.gcc+= gcc>=${_GCC_REQD}
BUILDLINK_ABI_DEPENDS.gcc?= gcc>=2.95.3nb7
BUILDLINK_PKGSRCDIR.gcc?= ../../lang/gcc
BUILDLINK_LIBDIRS.gcc?= \
${_GCC_PREFIX:S/^${BUILDLINK_PREFIX.gcc}\///}lib \
${_GCC_ARCHDIR:S/^${BUILDLINK_PREFIX.gcc}\///}
# Packages that link against shared libraries need a full dependency.
. if defined(_USE_GCC_SHLIB)
BUILDLINK_DEPMETHOD.gcc+= full
. else
BUILDLINK_DEPMETHOD.gcc?= build
. endif
.endif # GCC_BUILDLINK3_MK
BUILDLINK_TREE+= -gcc