You might be missing glibc components. Try adding the headers and libraries via:

$ sudo apt-get update && sudo apt-get install libc6-dev

This should add libm.a, libm.so, math.h, and other glibc components.

If you have these components installed and compiling still fails, you may need to edit the vt project's Makefile and manually edit the includes (-I) and link (-L) directories to instruct the build tools where headers and libraries are located.