- Take liquid-dsp master
- Align config.h MingW and Linux one.
- Make 64bit build target SSE4.2 while 32bit stays SSE3.
- Use latest MSYS2 version, i.e. GCC 8.3 for 64bit, GCC 7.4 for 32bit.
- Updated libwinpthread-1.dll from latest MSYS2
- Removed libliquid.a from msvsc libs since Visual Studio can't possibly static link MINGW lib.
==> 1.5x perf boost in CubicSDR :)
==> Maybe the config.h was wrong all this time, for instance HAVE_MMX wasn't defined. Well well.
Updated cmake file to properly generate project files for Visual C++ 12,
I also have added and tweaked the way the external libraries are
referenced, and in theory 32bit builds are included.
