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# $NetBSD: alternatives.mk,v 1.6 2006/03/14 01:14:35 jlam Exp $
#
# This Makefile fragment handles the alternatives system, registering a
# package in the database.
#
# The ALTERNATIVES_SRC variable contains the path to a file listing the
# alternatives provided by the package. It defaults to the ALTERNATIVES
# file in the current directory if found. If this variable is empty, no
# actions are taken by this file.
#
.if !defined(ALTERNATIVES_MK)
ALTERNATIVES_MK= # defined
.if !defined(ALTERNATIVES_SRC)
. if exists(${.CURDIR}/ALTERNATIVES)
ALTERNATIVES_SRC?= ${.CURDIR}/ALTERNATIVES
. else
ALTERNATIVES_SRC?=
. endif
.endif
.if !empty(ALTERNATIVES_SRC)
${WRKDIR}/.altinstall: ${ALTERNATIVES_SRC}
@{ ${ECHO} 'if ${TEST} $${STAGE} = "POST-INSTALL"; then'; \
${ECHO} '${CAT} >./+ALTERNATIVES <<EOF'; \
${SED} ${FILES_SUBST_SED} <${ALTERNATIVES_SRC}; \
${ECHO} 'EOF'; \
${ECHO} 'if ${TEST} -x ${PKG_ALTERNATIVES}; then'; \
${ECHO} '${PKG_ALTERNATIVES} -gs register ./+ALTERNATIVES'; \
${ECHO} 'fi'; \
${ECHO} 'fi'; \
} >${WRKDIR}/.altinstall
${WRKDIR}/.altdeinstall: ${ALTERNATIVES_SRC}
@{ ${ECHO} 'if ${TEST} $${STAGE} = "DEINSTALL"; then'; \
${ECHO} 'if ${TEST} -x ${PKG_ALTERNATIVES}; then'; \
${ECHO} '${PKG_ALTERNATIVES} -gs unregister ./+ALTERNATIVES'; \
${ECHO} 'fi'; \
${ECHO} '${RM} -f ./+ALTERNATIVES'; \
${ECHO} 'fi'; \
} >${WRKDIR}/.altdeinstall
PRINT_PLIST_AWK+= /^libdata\/alternatives\// { next; }
PRINT_PLIST_AWK+= /^@dirrm libdata\/alternatives/ { next; }
EVAL_PREFIX+= PREFIX.pkg_alternatives=pkg_alternatives
PREFIX.alternatives_DEFAULT= ${LOCALBASE}
PKG_ALTERNATIVES= ${PREFIX.pkg_alternatives}/sbin/pkg_alternatives
INSTALL_TEMPLATE+= ${WRKDIR}/.altinstall
DEINSTALL_TEMPLATE+= ${WRKDIR}/.altdeinstall
.endif
.endif # ALTERNATIVES_MK
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