1 files changed, 56 insertions, 0 deletions
diff --git a/mk/alternatives.mk b/mk/alternatives.mk
new file mode 100644
index 00000000000..1d6770ba5dd
--- /dev/null
+++ b/mk/alternatives.mk
@@ -0,0 +1,56 @@
+# $NetBSD: alternatives.mk,v 1.1 2005/01/25 13:13:35 jmmv 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} $${STAGE} = "POST-INSTALL"; then'; \
+	${ECHO} '${CAT} >./+ALTERNATIVES <<EOF'; \
+	${SED} ${FILES_SUBST_SED} <${ALTERNATIVES_SRC}; \
+	${ECHO} 'EOF'; \
+	${ECHO} '${PKG_ALTERNATIVES} -s register ./+ALTERNATIVES'; \
+	${ECHO} 'fi'; \
+	} >${WRKDIR}/.altinstall
+
+${WRKDIR}/.altdeinstall: ${ALTERNATIVES_SRC}
+	@{ ${ECHO} 'if ${TEST} $${STAGE} = "DEINSTALL"; then'; \
+	${ECHO} '${PKG_ALTERNATIVES} -s unregister ./+ALTERNATIVES'; \
+	${ECHO} '${RM} -f ./+ALTERNATIVES'; \
+	${ECHO} 'fi'; \
+	} >${WRKDIR}/.altdeinstall
+
+PRINT_PLIST_AWK+=	/^libdata\/alternatives\// { next; }
+PRINT_PLIST_AWK+=	/^@dirrm libdata\/alternatives/ { next; }
+
+DEPENDS+=		pkg_alternatives>=1.0:../../pkgtools/pkg_alternatives
+
+EVAL_PREFIX+=			PREFIX.pkg_alternatives=pkg_alternatives
+PREFIX.alternatives_DEFAULT=	${LOCALBASE}
+PKG_ALTERNATIVES=		${PREFIX.pkg_alternatives}/sbin/pkg_alternatives
+
+INSTALL_EXTRA_TMPL+=	${WRKDIR}/.altinstall
+DEINSTALL_EXTRA_TMPL+=	${WRKDIR}/.altdeinstall
+USE_PKGINSTALL=		YES
+
+.endif
+
+.endif	# ALTERNATIVES_MK