[oe] [meta-python][PATCHv2] python-grpcio: only modify the compiler arguments on the target build

[Derek Straka]

The modification of the compiler flags causes issues with the native builds of the package:

src/core/lib/surface/lame_client.cc: In function ‘grpc_channel* grpc_lame_client_channel_create(const char*, grpc_status_code, const char*)’:
src/core/lib/surface/lame_client.cc:178:3: warning: ‘auto’ changes meaning in C++11; please remove it [-Wc++0x-compat]
    auto chand = reinterpret_cast<grpc_core::ChannelData *>(elem->channel_data);
    ^
src/core/lib/surface/lame_client.cc:178:8: error: ‘chand’ does not name a type
    auto chand = reinterpret_cast<grpc_core::ChannelData *>(elem->channel_data);

Signed-off-by: Derek Straka <derek at asterius.io>
---
 meta-python/recipes-devtools/python/python-grpcio_1.7.0.bb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta-python/recipes-devtools/python/python-grpcio_1.7.0.bb b/meta-python/recipes-devtools/python/python-grpcio_1.7.0.bb
index 3ca7d53..a7df0a2 100644
--- a/meta-python/recipes-devtools/python/python-grpcio_1.7.0.bb
+++ b/meta-python/recipes-devtools/python/python-grpcio_1.7.0.bb
@@ -4,8 +4,8 @@ SECTION = "devel/python"
 
 DEPENDS = "python-protobuf"
 
-SRC_URI += "file://0001-setup.py-Do-not-mix-C-and-C-compiler-options.patch \
-           "
+SRC_URI_append_class-target = " file://0001-setup.py-Do-not-mix-C-and-C-compiler-options.patch "
+
 RDEPENDS_${PN} = "python-enum34 \
                   python-futures \
                   python-protobuf \
-- 
2.7.4