Need C++ compiler in our snap app

Our app need C++ compiler which is not available in snap core package. We did package g++ in our snap package. But when try to run our command which invoke g++ we get link error “cannot find /usr/lib/x86_64-linux-gnu/libmvec_nonshared.a”. The lib is under /sanp//current/usr/lib/x86_64-linux-gnu and it is on both g++ “-L” and LD_LIBRARY_PATH. We try to find a way to resolve this. And more generally is there a better solution than packaging g++ in our app? Does snap core package will include gcc/g++ in future? Thanks