spice: append to CFLAGS instead of +=

* 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@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta-networking/recipes-support/spice/spice_git.bb b/meta-networking/recipes-support/spice/spice_git.bb
index 3c45d1f5e..552f81df0 100644
--- a/meta-networking/recipes-support/spice/spice_git.bb
+++ b/meta-networking/recipes-support/spice/spice_git.bb
@@ -37,7 +37,7 @@ 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 = ""