On 26/01/2021 22:47, Manuel Bouyer wrote:
> Use unsigned char variable, or cast to (unsigned char), for
> tolower()/islower() and friends. Fix compiler error
> array subscript has type 'char' [-Werror=char-subscripts]
>
> Signed-off-by: Manuel Bouyer <bou...@netbsd.org>
> Reviewed-by: Ian Jackson <ian.jack...@eu.citrix.com>
> Release-Acked-by: Ian Jackson <ian.jack...@eu.citrix.com>
> ---
>  tools/libs/light/libxl_qmp.c | 2 +-
>  tools/xentrace/xentrace.c    | 2 +-
>  xen/tools/symbols.c          | 4 ++--

Acked-by: Andrew Cooper <andrew.coop...@citrix.com>

This is totally ugly, but it is a well known totally ugly corner case of
C.  Non-freestanding bits have to play by C's rules to be compatible.

~Andrew

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