RFR(XS): 8220690: ATTRIBUTE_ALIGNED requires GNU extensions enabled

[Severin Gehwolf]

On Tue, 2019-03-19 at 09:41 +0100, Aleksey Shipilev wrote:
> On 3/15/19 11:18 PM, Kim Barrett wrote:
> > Webrev:
> > http://cr.openjdk.java.net/~kbarrett/8220690/open.00/
> 
> I am fine with it.

+1. I've added a comment to the bug as I've see that prior to the RFR.
Sorry about this.

> Severin, can you test jdk/jdk still builds on old RHEL with this patch?

Sure. It'll take a bit. godbolt.org tells me that it should work for
GCC 4.4.7, though. I'll reply once I have results.

Thanks,
Severin