archiver.bbclass: Fix work-shared checking for kernel recipes

Source dir can be a symbolic link in some BSP's linux kernel recipe
which points to work-shared path (like linux-fslc in meta-freescale).
Change to use os.path.realpath() in order to get real path of
source dir.

(From OE-Core rev: 340dc094df5eda4a3834a90578b331d9edcffa94)

Signed-off-by: Benjamin Szőke <egyszeregy@freemail.hu>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 9191aa685418af32f003e067ef7c5737a271e3a5)
Signed-off-by: Steve Sakoman <steve@sakoman.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/meta/classes/archiver.bbclass b/meta/classes/archiver.bbclass
index 2d0bbfbd42..9d286224d6 100644
--- a/meta/classes/archiver.bbclass
+++ b/meta/classes/archiver.bbclass
@@ -473,7 +473,8 @@ def create_diff_gz(d, src_orig, src, ar_outdir):
 
 def is_work_shared(d):
     sharedworkdir = os.path.join(d.getVar('TMPDIR'), 'work-shared')
-    return d.getVar('S').startswith(sharedworkdir)
+    sourcedir = os.path.realpath(d.getVar('S'))
+    return sourcedir.startswith(sharedworkdir)
 
 # Run do_unpack and do_patch
 python do_unpack_and_patch() {