[PATCH v3 1/1] Makefile: pass -undef option to cmd_gen_envp

[Tom Rini]

On Fri, Feb 23, 2024 at 12:42:06PM +0100, Sébastien Szymanski wrote:

> Without the '-undef' option, the 'linux' string in .env files is
> replaced with the string '1 '.
> For example, in the board/armadeus/opos6uldev/opos6uldev.env file,
> 
> kernelimg=opos6ul-linux.bin
> 
> becomes
> 
> kernelimg=opos6ul-1 .bin
> 
> in the include/generated/env.in file.
> 
> That's because 'linux' is a System-specific Predefined Macros. [1]
> 
> Pass the '-undef' option to fix this issue.
> 
> [1] https://gcc.gnu.org/onlinedocs/gcc-13.2.0/cpp/System-specific-Predefined-Macros.html
> 
> Signed-off-by: Sébastien Szymanski <sebastien.szymanski at armadeus.com>

Reviewed-by: Tom Rini <trini at konsulko.com>

-- 
Tom
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