>> Martin J. Evans wrote: >> > col wrote: > >[8<] > >> >> >> >> So, I thought you folks should hear about it all again. HTH... >> >> else, sorry for the noise. >[8<] > >> >> I spoke to Nick and he reminded me why this can happen. > >Thanks *very* much for that. > >> See >> http://www.easysoft.com/support/kb/kb00664.html >> >http://groups.google.com/group/perl.dbi.users/browse_thread/thread/995131d999ca388/370b10f358e31729?hl=en&lnk=gst&q=Segmen>tation+fault+on+RHEL4#370b10f358e31729
> >And thanks for the links. I had already run across this and attempted to rebuild unixODBC --enable-rtldgroup=no to no apparent effect. I'll try again. > >> >> It is probably down to using RTLD_GLOBAL on the dlopen call which >> causes symbols to be resolved top down instead of from where the >> symbol was found to be undefined downwards. You can stick with what >> you are doing or rebuild unixODBC but it seems a permanent change to >> unixODBC is not possible because the problem is in libtool so every >> time unixODBC is reconfigured libtool replaces the change to remove >> RTLD_GROUP. > >./configure --prefix=/usr --host=i686-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share >--sysconfdir=/etc --localstatedir=/var/lib --host=i686-pc-linux-gnu --prefix=/usr --sysconfdir=/etc/unixODBC >--libdir=/usr/lib --enable-static --enable-rtldgroup=no --enable-fdb --build=i686-pc-linux-gnu > >... checking Have we enabled using RTLD_GROUP ... no > >[...] > >No change: > >perl dbix_odbctest.pl >Segmentation fault We had a similar problem a while ago with RHEL3 which was solved by installing the latest unixODBC (2.2.14) -- but without disabling RTLD_GROUP. (Actually, the problem was slightly different in that the DBI->connect failed rather than segfaulting, but maybe that was due to version differences in other software). We found Martin's reply to http://www.issociate.de/board/goto/565693/DBD::ODBC,_unixODBC,_FreeTDS,_MS-SQL,_lazy_DL,_dbd_db_login/SQLSetConnectOption_err=-2.html (the first reply in the same page) helpful, since unixODBC 2.2.8 is the default version in RHEL3 and a recent Fedora containing 2.2.11 worked correctly. best regards, John Escott.
