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?