How to regenerate gcc patches

[Iain Buclaw via D.gnu]

On 5 February 2015 at 13:14, Johannes Pfau via D.gnu
<d.gnu at puremagic.com> wrote:
> I think I've asked this before, but anyway:
>
> What's the exact command to generate the patches? I think we should
> document this somewhere to make sure there are no format changes in the
> patches which mess up git diffs.

In more recent times, I've just gone with 'git diff' on a checked out
gcc.git repo.  Or 'git diff gcc' to only get changes to the ./gcc
directory and below.

Before that, it was 'diff -pur'

Iain.