[OE-core] [oe-core] why recompile gcc-cross/eglibc when update linux package?

[Richard Purdie]

On Wed, 2012-12-05 at 10:16 +0000, Yi Qingliang wrote:
> I update the kernel from 3.6.6 to 3.6.9, and recompile it: bitbake linux
> 
> but it will recompile eglibc/gcc-cross first, so long time:( why?
> the eglibc will use kernel header? if so, understand.
> but what about gcc-cross?

Did you change linux-libc-headers or the kernel itself?

If you change the libc-headers, gcc-cross will rebuild since it depends
on eglibc and as you mention, eglibc depends on the headers.

Changing the target kernel recipe shouldn't rebuild any of those.

Cheers,

Richard