[PATCH][GCC][AArch64] Have empty HWCAPs string ignored during native feature detection

[Jakub Jelinek]

On Mon, Mar 04, 2019 at 02:31:57PM +0100, Christophe Lyon wrote:
> The new test fails with a cross-compiler, because:
> FAIL: gcc.target/aarch64/options_set_10.c (test for excess errors)
> Excess errors:
> cc1: error: unknown value 'native' for -mcpu
> 
> I don't know how to restrict tests to native compilers only.

{ target native }
perhaps?

	Jakub