[WIP] cmake: update to 3.5.2

[mati865]

It's still WIP but seems to be working. I've modified patches instead of recreating to make comparing easier. When it's ready to merge I'll recreate cmake-3.2.3-msys.patch to remove any fuzz.
It was tested by compiling doxygen, jsoncpp, nano. nano also have been manually tested. I know these 3 packages aren't enough to prove cmake is fine. How can I test if cmake is working as expected?

[mingwandroid]

Build https://github.com/Alexpux/MSYS2-packages/tree/master/clang-svn .. or if that fails and you can't fix it, find other msys2 packages that use CMake. I'd check but I'm not at a computer.

[mati865]

Ok, I'll try it tomorrow. I don't want you to waste too much time since you are busy already.

[mingwandroid]

It may need some updates unrelated to the CMake version change. I'll try to help out if that's the case.

[mati865]

Right now it's compiling. I've had to make some workarounds which will probably break clang.
They can be found here: mati865@0a27fbf
Note about 0001-cmake-hack-for-msys2.patch

For some reason CYGWIN is false under a MSYS Environment when using a msys compiler
A MSYS2 compiler is essentially cygwin compiler so this should be set to true.

Before anyone point out cmake's MSYS variable to me.
The MSYS variable refers to the host system and not the compiler.
So CYGWIN should still be TRUE.

This should be fixed in msys-cmake so that we can remove this patch :)

I guess it's + #set(CYGWIN 1) in cmake/cmake-3.2.3-msys.patch lines 80 and 100.

[mati865]

Build failed at 69% because of my mistake at modifying patches. Fixed patch pushed, I'll recompile it somewhen in following days.

[mati865]

Ok I managed to find some time to run compilation, clang, lld and llvm compiled. They are broken and I guess it's because of quick workarounds or some updates to source code. But it's up to you to decide what now @mingwandroid.