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pkgsrc/devel/sgb/buildlink3.mk

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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 20:23:50 +01:00
# $NetBSD: buildlink3.mk,v 1.4 2009/03/20 19:24:29 joerg Exp $
Import sgb. The Stanford GraphBase is a highly portable collection of programs and data for researchers who study combinatorial algorithms and data structures. All files are in the public domain and usable with only one restriction: They must not be changed! A ``change file'' mechanism allows local customization while the master files stay intact. The programs are intended to be interesting in themselves as examples of ``literate programming.'' Thus, the Stanford GraphBase can also be regarded as a collection of approximately 30 essays for programmers to enjoy reading, whether or not they are doing algorithmic research. The programs are written in CWEB, a combination of TeX and C that is easy to use by anyone who knows those languages and easy to read by anyone familiar with the rudiments of C.
2006-05-04 11:35:33 +02:00
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 20:23:50 +01:00
BUILDLINK_TREE+= sgb
Import sgb. The Stanford GraphBase is a highly portable collection of programs and data for researchers who study combinatorial algorithms and data structures. All files are in the public domain and usable with only one restriction: They must not be changed! A ``change file'' mechanism allows local customization while the master files stay intact. The programs are intended to be interesting in themselves as examples of ``literate programming.'' Thus, the Stanford GraphBase can also be regarded as a collection of approximately 30 essays for programmers to enjoy reading, whether or not they are doing algorithmic research. The programs are written in CWEB, a combination of TeX and C that is easy to use by anyone who knows those languages and easy to read by anyone familiar with the rudiments of C.
2006-05-04 11:35:33 +02:00
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 20:23:50 +01:00
.if !defined(SGB_BUILDLINK3_MK)
SGB_BUILDLINK3_MK:=
Import sgb. The Stanford GraphBase is a highly portable collection of programs and data for researchers who study combinatorial algorithms and data structures. All files are in the public domain and usable with only one restriction: They must not be changed! A ``change file'' mechanism allows local customization while the master files stay intact. The programs are intended to be interesting in themselves as examples of ``literate programming.'' Thus, the Stanford GraphBase can also be regarded as a collection of approximately 30 essays for programmers to enjoy reading, whether or not they are doing algorithmic research. The programs are written in CWEB, a combination of TeX and C that is easy to use by anyone who knows those languages and easy to read by anyone familiar with the rudiments of C.
2006-05-04 11:35:33 +02:00
BUILDLINK_API_DEPENDS.sgb+= sgb>=0pre20050409
BUILDLINK_PKGSRCDIR.sgb?= ../../devel/sgb
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 20:23:50 +01:00
.endif # SGB_BUILDLINK3_MK
Import sgb. The Stanford GraphBase is a highly portable collection of programs and data for researchers who study combinatorial algorithms and data structures. All files are in the public domain and usable with only one restriction: They must not be changed! A ``change file'' mechanism allows local customization while the master files stay intact. The programs are intended to be interesting in themselves as examples of ``literate programming.'' Thus, the Stanford GraphBase can also be regarded as a collection of approximately 30 essays for programmers to enjoy reading, whether or not they are doing algorithmic research. The programs are written in CWEB, a combination of TeX and C that is easy to use by anyone who knows those languages and easy to read by anyone familiar with the rudiments of C.
2006-05-04 11:35:33 +02:00
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 20:23:50 +01:00
BUILDLINK_TREE+= -sgb
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