Why is use $CC in CXXLINK wrong?

[H . J . Lu]

I don't get this patch:

http://gcc.gnu.org/ml/gcc-patches/2001-03/msg01870.html

For all I know, libc.so can be written in C, C++, asm, ..... as
long as it provides the ABI required by libc.so. I don't see why
libstdc++.so should be any different. Does gcc really have to know
from which language those object files are compiled from when
buiding libstdc++.so? Could someone please tell me if I missed
something?


H.J.