[Patch] gcc.c's check_offload_target_name: Fixes to inform hints

[Jakub Jelinek]

On Wed, Jun 30, 2021 at 12:19:17PM +0200, Tobias Burnus wrote:
> gcc.c's check_offload_target_name: Fixes to inform hints
> 
> gcc/ChangeLog:
> 
> 	* gcc.c (close_at_file, execute): Replace alloca by XALLOCAVEC.
> 	(check_offload_target_name): Fix splitting OFFLOAD_TARGETS into
> 	a candidate list; better inform no offload target is configured
> 	and fix hint extraction when passed target is not '\0' at [len].
> 	* common.opt (foffload, foffload-options): Add tailing '.'.

Ok, thanks.

	Jakub