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File: [cvs.NetBSD.org] / pkgsrc / mk / pkg-build-options.mk (download)

Revision 1.8, Fri Mar 20 19:25:01 2009 UTC (10 years, 7 months ago) by joerg
Branch: MAIN
CVS Tags: pkgsrc-2012Q3-base, pkgsrc-2012Q3, pkgsrc-2012Q2-base, pkgsrc-2012Q2, pkgsrc-2012Q1-base, pkgsrc-2012Q1, pkgsrc-2011Q4-base, pkgsrc-2011Q4, pkgsrc-2011Q3-base, pkgsrc-2011Q3, pkgsrc-2011Q2-base, pkgsrc-2011Q2, pkgsrc-2011Q1-base, pkgsrc-2011Q1, pkgsrc-2010Q4-base, pkgsrc-2010Q4, pkgsrc-2010Q3-base, pkgsrc-2010Q3, pkgsrc-2010Q2-base, pkgsrc-2010Q2, pkgsrc-2010Q1-base, pkgsrc-2010Q1, pkgsrc-2009Q4-base, pkgsrc-2009Q4, pkgsrc-2009Q3-base, pkgsrc-2009Q3, pkgsrc-2009Q2-base, pkgsrc-2009Q2, pkgsrc-2009Q1-base, pkgsrc-2009Q1
Changes since 1.7: +19 -6 lines

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.

# $NetBSD: pkg-build-options.mk,v 1.8 2009/03/20 19:25:01 joerg Exp $
#
# This procedure determines the PKG_OPTIONS that have been in effect
# when the package ${pkgbase} has been built. When the package is not
# yet installed, the current PKG_OPTIONS are queried.
#
# Parameters:
#	pkgbase
#		The basename of the package.
#
# Returns:
#	PKG_BUILD_OPTIONS.${pkgbase}
#		The build options of the package.
#
# Example:
#	pkgbase := wine
#	.include "../../mk/pkg-build-options.mk"
#
# Keywords: options pkg-build-options PKG_BUILD_OPTIONS
#

.include "bsd.fast.prefs.mk"

# For the check for inclusion from non-buildlink3.mk, it is irrelevant
# whether BUILDLINK_TREE was empty or undefined, so defining it here
# avoids dealing one case.
BUILDLINK_TREE?=

# Counting words doesn't work as expected for empty strings, they
# still have one word.  Older make doesn't like the code without
# variable assignment for unknown reasons.
_BUILDLINK_TREE_WITH:= ${BUILDLINK_TREE:M-*:[\#]}
_BUILDLINK_TREE_WITHOUT:= ${BUILDLINK_TREE:N-*:[\#]}
.if (empty(BUILDLINK_TREE:M-*) && empty(BUILDLINK_TREE:N-*)) || \
    (!empty(BUILDLINK_TREE:M-*) && !empty(BUILDLINK_TREE:N-*) && \
     ${_BUILDLINK_TREE_WITH} == ${_BUILDLINK_TREE_WITHOUT})
.  for b in ${pkgbase}
PKG_BUILD_OPTIONS.${b}=
PKG_FAIL_REASON+=	"[pkg-build-options.mk] This file may only be included from a buildlink3.mk file (pkgbase=${b})."
.  endfor
.else
.  for b in ${pkgbase}
.    if !defined(PKG_BUILD_OPTIONS.${b})
PKG_BUILD_OPTIONS.${b} != \
	echo ""; \
	${PKG_INFO} -Q PKG_OPTIONS ${pkgbase} 2>/dev/null \
	|| { cd ${BUILDLINK_PKGSRCDIR.${b}} \
	     && ${MAKE} ${MAKEFLAGS} show-var VARNAME=PKG_OPTIONS; }

MAKEFLAGS+=	PKG_BUILD_OPTIONS.${b}=${PKG_BUILD_OPTIONS.${b}:Q}
.    endif

MAKEVARS+=	PKG_BUILD_OPTIONS.${b}
.  endfor
.endif