gentoo-overlay/sys-fs/mdadm/files/mdadm-3.2.x-udevdir.patch

http://bugs.gentoo.org/430900

--- Makefile
+++ Makefile
@@ -97,6 +97,12 @@
 MAN4DIR = $(MANDIR)/man4
 MAN5DIR = $(MANDIR)/man5
 MAN8DIR = $(MANDIR)/man8
+PKG_CONFIG ?= pkg-config
+
+UDEVDIR := $(shell $(PKG_CONFIG) --variable=udevdir udev 2>/dev/null)
+ifndef UDEVDIR
+  UDEVDIR = lib/udev
+endif
 
 OBJS =  mdadm.o config.o policy.o mdstat.o  ReadMe.o util.o maps.o lib.o \
 	Manage.o Assemble.o Build.o \
@@ -254,7 +260,7 @@
 	$(INSTALL) -D -m 644 mdadm.conf.5 $(DESTDIR)$(MAN5DIR)/mdadm.conf.5
 
 install-udev: udev-md-raid.rules
-	$(INSTALL) -D -m 644 udev-md-raid.rules $(DESTDIR)/lib/udev/rules.d/64-md-raid.rules
+	$(INSTALL) -D -m 644 udev-md-raid.rules $(DESTDIR)/$(UDEVDIR)/rules.d/64-md-raid.rules
 
 uninstall:
 	rm -f $(DESTDIR)$(MAN8DIR)/mdadm.8 $(DESTDIR)$(MAN8DIR)/mdmon.8 $(DESTDIR)$(MAN4DIR)/md.4 $(DESTDIR)$(MAN5DIR)/mdadm.conf.5 $(DESTDIR)$(BINDIR)/mdadm