Re: [PATCH v2] kbuild: Do not use hyphen in exported variable name

[Masahiro Yamada <yamada.masahiro@socionext.com>]

2017-08-20 6:30 GMT+09:00 Ben Hutchings <ben@decadent.org.uk>:
> This definition in Makefile.dtbinst:
>
>     export dtbinst-root ?= $(obj)
>
> should define and export dtbinst-root when handling the root dts
> directory, and do nothing in the subdirectories.  However some shells,
> including dash, will not pass through environment variables whose name
> includes a hyphen.  Usually GNU make does not use a shell to recurse,
> but if e.g. $(srctree) contains '~' it will use a shell here.
>
> Rename the variable to dtbinst_root.
>
> References: https://bugs.debian.org/833561
> Fixes: 323a028d39cdi ("dts, kbuild: Implement support for dtb vendor subdirs")
> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
> ---
> v2: Revised the commit message to explain exactly how the hyphenated
> variable can be lost.
>

Thanks for figuring out the root cause!

Applied to linux-kbuild/fixes.

-- 
Best Regards
Masahiro Yamada