Re: [PATCH 0/5] MR8037: widl: Initial support for generating Windows Runtime metadata.

[Jacek Caban (＠jacek)]

Jacek Caban (@jacek) commented about tools/widl/metadata.c:
> buf->offset += size;
>  }
>
> +static void generate_guid( GUID *guid )
> +{
> +    int fd = open( "/dev/urandom", O_RDONLY );
> +    if (fd != -1) read( fd, guid, sizeof(*guid) );
> +    close( fd );
> +}

This is problematic both for reproducible builds and for the Windows widl build (used by mingw toolchains). I don’t know enough about the context to suggest concrete alternatives, would using a hash of other input data make sense for generating this GUID?

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https://gitlab.winehq.org/wine/wine/-/merge_requests/8037#note_103285