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.
33 lines
1 KiB
Makefile
33 lines
1 KiB
Makefile
# $NetBSD: buildlink3.mk,v 1.33 2009/03/20 19:24:24 joerg Exp $
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BUILDLINK_TREE+= ncurses
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.if !defined(NCURSES_BUILDLINK3_MK)
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NCURSES_BUILDLINK3_MK:=
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BUILDLINK_API_DEPENDS.ncurses+= ncurses>=5.3nb1
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BUILDLINK_ABI_DEPENDS.ncurses+= ncurses>=5.4nb1
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BUILDLINK_PKGSRCDIR.ncurses?= ../../devel/ncurses
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BUILDLINK_LIBNAME.ncurses= ncurses
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BUILDLINK_LDADD.ncurses?= ${BUILDLINK_LIBNAME.ncurses:S/^/-l/:S/^-l$//}
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# Many packages expect the ncurses headers and libraries to be usable as
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# <curses.h> and -lcurses.
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#
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BUILDLINK_TARGETS+= buildlink-ncurses-curses-h
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BUILDLINK_TRANSFORM+= l:curses:${BUILDLINK_LIBNAME.ncurses}
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.PHONY: buildlink-ncurses-curses-h
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buildlink-ncurses-curses-h:
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${RUN} \
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src=${BUILDLINK_PREFIX.ncurses:Q}"/include/ncurses.h"; \
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dest=${BUILDLINK_DIR:Q}"/include/curses.h"; \
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if ${TEST} ! -f "$$dest" -a -f "$$src"; then \
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${ECHO_BUILDLINK_MSG} "Linking curses.h -> ncurses.h."; \
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${MKDIR} `${DIRNAME} "$$dest"`; \
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${LN} -s "$$src" "$$dest"; \
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fi
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.endif # NCURSES_BUILDLINK3_MK
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BUILDLINK_TREE+= -ncurses
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