[OE-core] [PATCH 1/4] cross.bbclass: override TARGET_* flags

[liu.ming50 at gmail.com]

From: Ming Liu <peter.x.liu at external.atlascopco.com>

Some TARGET_* flags are being exported in bitbake.conf currently, so
they are impacting all the tasks of a cross recipe even they are not
in use at all.

This can lead a lot of churn when the cross sysroot are shared by
machines while they have defined different TARGET_* flags.

And sometimes it even causes "Taskhash mismatch" errors.

Fix it by overriding with BUILD_* flags.

Signed-off-by: Ming Liu <peter.x.liu at external.atlascopco.com>
---
 meta/classes/cross.bbclass | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/meta/classes/cross.bbclass b/meta/classes/cross.bbclass
index 2602153..8757303 100644
--- a/meta/classes/cross.bbclass
+++ b/meta/classes/cross.bbclass
@@ -28,6 +28,11 @@ MULTIMACH_TARGET_SYS = "${BUILD_ARCH}${BUILD_VENDOR}-${BUILD_OS}"
 export PKG_CONFIG_DIR = "${exec_prefix}/lib/pkgconfig"
 export PKG_CONFIG_SYSROOT_DIR = ""
 
+TARGET_CPPFLAGS = "${BUILD_CPPFLAGS}"
+TARGET_CFLAGS = "${BUILD_CFLAGS}"
+TARGET_CXXFLAGS = "${BUILD_CXXFLAGS}"
+TARGET_LDFLAGS = "${BUILD_LDFLAGS}"
+
 CPPFLAGS = "${BUILD_CPPFLAGS}"
 CFLAGS = "${BUILD_CFLAGS}"
 CXXFLAGS = "${BUILD_CFLAGS}"
-- 
2.7.4