[yocto] get_kernelversion_headers not replacing '_' by '-'

[Fernando AE]

Hello all,

I discovered that if a '_' in present in the kernel version string,
the task package_write_ipk during the kernel build will fail.

In Yocto 2.6, get_kernelversion_headers is defined at
meta/classes/linux-kernel-base.bbclass.

In the attached file, I set KERNEL_VERSION="kernel_version" in my linux recipe.

Any thoughts?

Kind regards,
Fernando
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