Is it possible to integrate other languages and compilers into c::b?
Of course. There are usually two possibilities:
1.) Your compiler is a variant of an existing compiler (e.g. a later / modified version of GCC). Then it is often possible to just create a copy of the "mother" compiler and adjust the compiler settings.
2.) If it is another compiler than it depends on the language. If it's a C/C++ style language than you can easily implement another compiler yourself based on an existing one (inspect the compiler plugin for details). This is usually quite easy, too but requires you to compile C::B yourself which (hehe...) is easy, too. BTW: If you have done this the patch would be most welcome.
But please give more details about the compiler you want to have support4ed to answer more precisely.