Windows 8+ native spell checker support

[TingPing]

Since this project has actually been somewhat active recently I thought I would bring this up.

https://github.com/hexchat/hexchat/tree/master/src/libenchant_win8

As the title says this uses the native spell checking support on Windows that I wrote a few years ago. I know this is bad manners but I don't personally use Windows often so I don't have an easy way to test integrating it into the build system and I just wanted to leave this here as at least a documented implementation for those who need it. It is a self contained plugin so it is easy to build externally.

[rrthomas]

Thanks! I don't develop on Windows much either, but documenting this would be a good start.

In any case, the whole point of Enchant is that you can build providers separately, so there's no pressing need to include it as part of the library.

[hfiguiere]

Let's mark this issue appropriately :-)

[bgermann]

I had a stab at this. The main problem is that mingw does not provide the spellcheck.h header that the win8 provider uses. I did not find a good resource how to build an autotools project with a Windows 10 SDK and do not know if it is possible at all. So this might be a good reason for #58 introducing meson.

[bgermann]

The thing got into mingw at version 8.0.1 https://sourceforge.net/p/mingw-w64/mingw-w64/ci/5ff3423c505df415ca4d75a62dadbf6b5696b8ae/
So maybe this is now worth trying again.