[PATCH] Add pseudo-compatibility with gmime 2.6

[Tim Stoakes]

Thomas Jost(schnouki at schnouki.net)@170112-00:56:
> There are lots of API changes in gmime 2.6 crypto handling. By adding
> preprocessor directives, it is however possible to add gmime 2.6 compatibility
> while preserving compatibility with gmime 2.4 too.
> 
> This is mostly based on id:"8762i8hrb9.fsf at bookbinder.fernseed.info".
> 
> This was tested against both gmime 2.6.4 and 2.4.31. With gmime 2.4.31, the
> crypto tests all work fine (as expected). With gmime 2.6.4, one crypto test
> fails (signature verification with signer key unavailable) but this will be hard
> to fix since the new API does not report the reason why a signature verification
> fails (other than the human-readable error message).

+1 from me.

I literally just coded up a similar patch, and the first email I see
with the newly compiled notmuch is this one. I've now tried Thomas's
(better) patch with gmime-2.6.4 and notmuch
7ddd849015759a329bf8fef8c8b5a93359408962, and can confirm it works fine
for me. This build breakage is otherwise quite painful.

Thanks Thomas.

Tim

-- 
Tim Stoakes