compile with -std=gnu11 / -std=gnu++11

[bluetiger9]

fix for #267

[chipkitbot]

Can one of the admins verify this patch?

[EmbeddedMan]

Ok to test

…

On Thu, May 31, 2018, 1:43 PM chipKIT Bot ***@***.***> wrote: Can one of the admins verify this patch? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#415 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAbeCEFUY-A_M48g2WmAFx7fzTscpR8xks5t4DnQgaJpZM4UViqR> .

[EmbeddedMan]

Wonderful. Thanks for getting this in.