problem installing libstdc++ 2.90.7 on Solaris 2.7

[Dawit Yimam]

Hi,

I have beeen trying to install libstdc++ 2.90.7. I used the CVS sources
for handling the ctype_base.h problem. However, the compilation broke
off with the following error (immediately after completing installing
the libraries in the lib directory).

make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/home/dawit/libstdc-v3/libstdc++-2.90.7/src'

make[1]: *** No rule to make target `bits/ctype_base.h', needed by
`/home/dawit/
usr/include/g++-v3/bits/ctype_base.h'.  Stop.
make[1]: Leaving directory `/home/dawit/libstdc-v3/libstdc++-2.90.7/src'

make: *** [install-recursive] Error 1

How can I fix this ?

Thanks.

Dawit