augeas: Fix missing files with separate build directory

${datadir} was empty when building ${B} != ${S}, this patch addresses that
problem and means the -lenses package is no longer empty.

(From OE-Core rev: ee3b0d8fbe42a3c813039850886b5bf97544eb15)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/augeas/augeas.inc

@@ -7,6 +7,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=bbb461211a33b134d42ed5ee802b37ff"
 
 SRC_URI = "http://download.augeas.net/${BP}.tar.gz \
            file://add-missing-argz-conditional.patch \
+           file://sepbuildfix.patch \
           "
 
 DEPENDS = "readline libxml2"

meta/recipes-extended/augeas/augeas/sepbuildfix.patch

@@ -0,0 +1,22 @@
+Ensure that builds in separate builddirs (${B} != ${S}) correctly install the 
+lenses files.
+
+Upstream-Status: Pending
+
+RP 2013/4/17
+
+Index: augeas-1.0.0/Makefile.am
+===================================================================
+--- augeas-1.0.0.orig/Makefile.am	2012-11-02 15:20:11.000000000 +0000
++++ augeas-1.0.0/Makefile.am	2013-04-17 10:36:24.033400125 +0000
+@@ -5,8 +5,8 @@
+ lensdir=$(datadir)/augeas/lenses/dist
+ lenstestdir=$(datadir)/augeas/lenses/dist/tests
+ 
+-dist_lens_DATA=$(wildcard lenses/*.aug)
+-dist_lenstest_DATA=$(wildcard lenses/tests/*.aug)
++dist_lens_DATA=$(wildcard $(top_srcdir)/lenses/*.aug)
++dist_lenstest_DATA=$(wildcard $(top_srcdir)lenses/tests/*.aug)
+ 
+ EXTRA_DIST=augeas.spec build/aux/move-if-change Makefile.am HACKING
+