[PATCH][ld] Implement --build-id=uuid on MinGW/MSYS2.

[Alan Modra]

On Mon, Jul 25, 2016 at 10:15:34AM +0000, Igor Kudrin wrote:
> +#else /* __MINGW32__ */
> +      UUID uuid;
> +      typedef RPC_STATUS (RPC_ENTRY *UuidCreateFn)(UUID *Uuid);

Formatting.  Space before open parens of function args.
      typedef RPC_STATUS (RPC_ENTRY *UuidCreateFn) (UUID *Uuid);

> +      UuidCreateFn uuid_create = 0;
> +
> +      HMODULE rpc_library = LoadLibrary("rpcrt4.dll");

Same.
      HMODULE rpc_library = LoadLibrary ("rpcrt4.dll");

> +      if (!rpc_library)
> +	return FALSE;
> +      uuid_create = (UuidCreateFn)GetProcAddress(rpc_library, "UuidCreate");

Again, and space after cast.
      uuid_create = (UuidCreateFn) GetProcAddress (rpc_library, "UuidCreate");
and more below.

> +      if (!uuid_create)
> +	{
> +	  FreeLibrary(rpc_library);
> +	  return FALSE;
> +	}
> +
> +      if (uuid_create(&uuid) != RPC_S_OK)
> +	{
> +	  FreeLibrary(rpc_library);
> +	  return FALSE;
> +	}
> +      FreeLibrary(rpc_library);
> +      memcpy(id_bits, &uuid, size < sizeof(UUID) ? size : sizeof(UUID));
> +#endif /* __MINGW32__ */

Other than the formatting issues, I really don't have enough
familiarity with mingw to properly review the patch.  So I'm passing
the buck to Nick.

-- 
Alan Modra
Australia Development Lab, IBM