Did you read the README.txt in the source directory? Unfortunately, Oracle makes linking against their libraries wildly more painful than any other vendor I've ever seen. The nm command is your friend as described in the readme file. You need to use nm to find the library containing the missing symbol and then add that library to the Setup file.

Yes, I have read the README.txt. Then I did a 'nm -A lib*.a | grep log10l' and got: libcore3.a[lnxren.o]: [11] | 0| 0|NOTY |GLOB |0 |UNDEF |log10l I appended libcore3.a to ORACLE_LIBS and rebuilt everything. But the error message remained. What irritates me is the "UNDEF" in nm's output. Should I append libcore3.a several times? Sounds strange to me... Any other ideas? Martin