Hi folks, I installed the GiNaC Debian package on my machine. I now have ||/ Name Version Description +++-==============-==========-============== ii libginac-dev 1.3.0-2 The GiNaC framework (development files) I get the following warning when I link my test program: /usr/bin/ld: warning: libstdc++.so.5, \ needed by /usr/bin/../lib/libginac.so, \ may conflict with libstdc++.so.6 The program segfaults in GiNaC::matrix::operator= (). How do I tell the linker to link against libstdc++.so.5 only, thereby avoiding conflicts? This is my version of GCC: gcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../configure Thread model: posix gcc version 4.0.2 Thanks! -- +------------------------------------------------------------+ | Marko Riedel, EDV Neue Arbeit gGmbH, mriedel@neuearbeit.de | | http://www.geocities.com/markoriedelde/index.html | +------------------------------------------------------------+