* without this we cause nativesdk-linux-libc-headers to depend
  on target specific KERNEL_CC (through icecc_get_tool ->
  icecc_is_kernel -> KERNEL_CC -> HOST_CC_KERNEL_ARCH ->
  TARGET_CC_KERNEL_ARCH -> TUNE_FEATURES(thumb) as shown by
  bitbake-diffsigs:

  OE qemux86@ ~/build/oe-core $ ls 
/OE/build/oe-core/tmp-glibc/sstate-diff/1499859497/qemu*/*sdk*/*/*do_configure.sigdata*
  
/OE/build/oe-core/tmp-glibc/sstate-diff/1499859497/qemuarm/x86_64-nativesdk-oesdk-linux/nativesdk-linux-libc-headers/4.10-r0.do_configure.sigdata.3a9a423878d56524e0ee8e42eba1804f
  
/OE/build/oe-core/tmp-glibc/sstate-diff/1499859497/qemux86/x86_64-nativesdk-oesdk-linux/nativesdk-linux-libc-headers/4.10-r0.do_configure.sigdata.401071dbaa88903ece37d35a47965ff2

  OE qemux86@ ~/build/oe-core $ bitbake-diffsigs 
/OE/build/oe-core/tmp-glibc/sstate-diff/1499859497/qemu*/*sdk*/*/*do_configure.sigdata*
  basehash changed from 39774238b66763c598153132e87a2c1a to 
aa2d66e770bf533e312536eb0a401c4c
  Variable TARGET_CC_KERNEL_ARCH value changed from 
'${@bb.utils.contains('TUNE_FEATURES', 'thumb', '-mno-thumb-interwork-marm', 
'', d)} TUNE_FEATURES{thumb} = Set' to ''

Signed-off-by: Martin Jansa <martin.ja...@gmail.com>
---
 meta/classes/icecc.bbclass | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/classes/icecc.bbclass b/meta/classes/icecc.bbclass
index 8a351cf3b8..77bf61133e 100644
--- a/meta/classes/icecc.bbclass
+++ b/meta/classes/icecc.bbclass
@@ -42,6 +42,7 @@ def icecc_dep_prepend(d):
 
 DEPENDS_prepend += "${@icecc_dep_prepend(d)} "
 
+get_cross_kernel_cc[vardepsexclude] += "KERNEL_CC"
 def get_cross_kernel_cc(bb,d):
     kernel_cc = d.getVar('KERNEL_CC', False)
 
-- 
2.14.0

-- 
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