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# $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
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