[CMake] Cmake + Cosmic Compiler

[MS]

Hi
Does anybodyknow whether it would be possible to use cross compiler "Cosmic Compiler" together with CMake under Windows?

Cosmic consists of compiler(cxs12x.exe), xgate compiler(cxxgate.exe), linker(clnk.exe). XGATE is another processor within one integrated circuit. So the build process consists of
1. compiler execution
2. xgate compiler execution
3. linker execution - that links 1. and 2. part into one binary

1. When defining cmake toolchain it asks for CXX and C compilers - but we have only one  C compiler(cxs12x.exe), how to force CMake to not to use C++ compiler
2. Where to set XGate compiler
3. Linker executable is not the same as compiler executable - is it possible to set linker variable in CMake separately from compiler variable