[oe] [meta-networking][PATCH] spice: append to CFLAGS instead of +=

[Martin Jansa]

* so that -Wno-address-of-packed-member is used for all the builds not
  only for target builds
* with native it was overwritten with BUILD_CFLAGS and for nativesdk with
  BUILDSDK_CFLAGS
* this issue isn't specific for gcc-9 as the original commit said, I see
  nativesdk-spice failing on older hosts with gcc-7 with the same issue
* also use -Wno-error=address-of-packed-member instead of
  -Wno-address-of-packed-member so that there is still a warning, just
  not fatal for the build in combination with -Werror.

Signed-off-by: Martin Jansa <Martin.Jansa at gmail.com>
---
 meta-networking/recipes-support/spice/spice_git.bb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta-networking/recipes-support/spice/spice_git.bb b/meta-networking/recipes-support/spice/spice_git.bb
index 6249b0422b..b0fab0d65f 100644
--- a/meta-networking/recipes-support/spice/spice_git.bb
+++ b/meta-networking/recipes-support/spice/spice_git.bb
@@ -36,7 +36,7 @@ DEPENDS_append_class-nativesdk = "nativesdk-openssl"
 export PYTHON="${STAGING_BINDIR_NATIVE}/python-native/python"
 export PYTHONPATH="${PKG_CONFIG_SYSROOT_DIR}${libdir}/python2.7/site-packages"
 
-CFLAGS += "-Wno-address-of-packed-member"
+CFLAGS_append = " -Wno-error=address-of-packed-member"
 
 PACKAGECONFIG_class-native = ""
 PACKAGECONFIG_class-nativesdk = ""
-- 
2.17.1