[oe] [meta-python][PATCH] python-lxml: do not overwrite inherited DEPENDS

[Andreas Müller]

python-lxml recipe inherits setuptools3 and after that includes
python-lxml.inc. In the current situation DEPENDS inherited by
setuptools3-tree are overwritten causing:

DEBUG: Executing shell function do_compile
/home/superandy/tmp/oe-core-glibc/work/x86_64-linux/python3-lxml-native/3.4.4-r0/temp/run.do_compile.30454: line 118: /home/superandy/tmp/oe-core-glibc/sysroots/x86_64-linux/usr/bin/python3-native/python3: No such file or directory
ERROR: python3 setup.py build_ext execution failed.
WARNING: /home/superandy/tmp/oe-core-glibc/work/x86_64-linux/python3-lxml-native/3.4.4-r0/temp/run.do_compile.30454:1 exit 1 from
  exit 1
ERROR: Function failed: do_compile (log file is located at /home/superandy/tmp/oe-core-glibc/work/x86_64-linux/python3-lxml-native/3.4.4-r0/temp/log.do_compile.30454)

Signed-off-by: Andreas Müller <schnitzeltony at googlemail.com>
---
 meta-python/recipes-devtools/python/python-lxml.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta-python/recipes-devtools/python/python-lxml.inc b/meta-python/recipes-devtools/python/python-lxml.inc
index 8ca8f41..7a596c1 100644
--- a/meta-python/recipes-devtools/python/python-lxml.inc
+++ b/meta-python/recipes-devtools/python/python-lxml.inc
@@ -6,7 +6,7 @@ LICENSE = "BSD"
 LIC_FILES_CHKSUM = "file://LICENSES.txt;md5=f9f1dc24f720c143c2240df41fe5073b"
 SRCNAME = "lxml"
 
-DEPENDS = "libxml2 libxslt"
+DEPENDS += "libxml2 libxslt"
 
 SRC_URI = "http://pypi.python.org/packages/source/l/${SRCNAME}/${SRCNAME}-${PV}.tar.gz"
 
-- 
2.1.0