Issue #6021 has been updated by Bohuslav Kabrda. OK, sorry for kidding, removing the 'libc' stuff doesn't affect it. I'll try to investigate this further. The problem is probably in the new gdbm functionality. ---------------------------------------- Bug #6021: TestDBM#test_aref test fails https://bugs.ruby-lang.org/issues/6021 Author: Vit Ondruch Status: Feedback Priority: Normal Assignee: Category: Target version: ruby -v: ruby 1.9.3p105 (2012-02-13 revision 34579) [x86_64-linux] Testing with Fedora 17/Rawhide, I get following test error: TestDBM#test_aref = ./ruby: symbol lookup error: /builddir/build/BUILD/ruby-1.9.3-p105/.ext/x86_64-linux/dbm.so: undefined symbol: dbm_open # rpm -q gdbm gdbm-1.10-2.fc17.x86_64 -- http://bugs.ruby-lang.org/