Given a test application compiled by g++-3.2_3.2.1-0pre3_i386, installing the 3.2.1-0pre4 series yields the following: $ ./test ./test: /lib/libc.so.6: version `GLIBC_2.3' not found (required by /usr/lib/libstdc++.so.5) The 3.2.1-0pre4 package series installed over the 3.2.1-0pre3 series with no dependency complaints, despite the apparent problem. - jd