RE: autotest/AT_CHECK: ways to pass additional options on to diff?

[Jannick]

Hi Luke,

Sorry for the late reply.

On Wed, 5 Jun 2019 15:56:01 +1000, Luke Mewburn wrote:

> I used another solution where wanted to use a different diff 
> implementation for AT_CHECK() that that allowed for regexes to be used 
> in places where the output changes each test run.
> See my "pyrediff" project: https://github.com/lukem/pyrediff
> 
> In pyrediff, I implemented a new macro with similar semantics to
> AT_CHECK() which temporarily overrode the setting of at_diff before 
> calling AT_CHECK(), and set at_diff back before AT_CHECK() returns.

Would the approach by redefining diff in the shell environment I suggested in 
https://lists.gnu.org/archive/html/autoconf/2019-06/msg00002.html be something 
to avoid fiddling around with the autotest internals like the variable at_diff?

> I hope that's useful,
> Luke.

Many thanks for your input.

Regards,
J.