build nios2-elf-gcc with fedore4

You need the crt0.o from newlib.

I try the build with the source from Nios2 window cd.

I built binutils,gcc with c only, newlib, and gcc with c,c++.

And it stopped at the last step for libstdc++,

checking for extra compiler flags for building...
configure: WARNING: No native atomic operations are provided for this platform.
configure: WARNING: They cannot be faked when thread support is disabled.
configure: WARNING: Thread-safety of certain classes is not guaranteed.
configure: error: No support for this host/target combination.
make: ***  Error 1

I try with buildroot, and it stopped at the same message.

Still finding...