[LTP] [PATCH ltp] m4/ltp-kernel_devel.m4: get LINUX_VERSION from LINUX_DIR during configure

[Cyril Hrubis]

Hi!
> If LINUX_DIR is given, get LINUX_VERSION for kernel source code instead
> of `uname -r`. So when we need to build .ko with a kernel differernt
> than the one on current host PC, we only need to provide
> "--with-linux-dir", and LINUX_VERSION will be generated automatically.

Looking at the m4 file for kernel-devel it seems we only use the
LINUX_VERSION in order to construct the LINUX_DIR path and the rest of
the code, i.e. include/mk/module.mk uses the LINUX_VERSION_MAJOR and
LINUX_VERSION_MINOR generated based on the LINUX_DIR.

What is the LINUX_VERSION variable needed for? It does not seem to be
used anywhere outside the m4 kernel devel file.

-- 
Cyril Hrubis
chrubis@suse.cz