Thanks, Juanito for the new binaries of gcc 4.4.0 .
Now it is possible to compile and run things that fail before in TC2.x (but not in TC1.4.3), as indicated in above posts (v.g. amsn).
The only issue is that as TinyCore 2.x is not build with this release, it is necessary to install as dependence. Until the definitive solution, this is a good approach.
Thanks again.