Hi Eljay, Sounds like a good guess. I'm trying to build a .so file and it is dying on the link step. gcc3.2 is installed on the computer (but we don't use it anymore). We're now using gcc 2.95 gcc -shared clntcore.exp -o dbg/clntcore.so -u CreateEngine -u CloseEngine -u SetDLLAccessPath dbg/obj/clntcoredll/platform/unix/hxslctcb.o dbg/obj/clntcoredll/buffmgr.o dbg/obj/clntcoredll/corshare.o dbg/obj/clntcoredll/dlliids.o dbg/obj/clntcoredll/plsnkctl.o dbg/obj/clntcoredll/hxcleng.o dbg/obj/clntcoredll/hxdll.o dbg/obj/clntcoredll/hxplay.o dbg/obj/clntcoredll/hxsrc.o dbg/obj/clntcoredll/hxstrm.o dbg/obj/clntcoredll/hxcorcom.o dbg/obj/clntcoredll/chxgroup.o dbg/obj/clntcoredll/hxresmgr.o dbg/obj/clntcoredll/srcinfo.o dbg/obj/clntcoredll/strminfo.o dbg/obj/clntcoredll/chxelst.o dbg/obj/clntcoredll/hxflsrc.o dbg/obj/clntcoredll/hxntsrc.o dbg/obj/clntcoredll/hxprotocol.o dbg/obj/clntcoredll/rtspprotocol.o dbg/obj/clntcoredll/sinkctl.o dbg/obj/clntcoredll/statsmgr.o dbg/obj/clntcoredll/hxtac.o dbg/obj/clntcoredll/asm/hxsm.o dbg/obj/clntcoredll/asm/hxsmstr.o dbg/obj/clntcoredll/hypernav/playhpnv.o dbg/obj/clntcoredll/hypernav/hxhypnv.o dbg/obj/clntcoredll/hypernav/thrhypnv.o dbg/obj/clntcoredll/perscmgr.o dbg/obj/clntcoredll/viewport.o dbg/obj/clntcoredll/viewsrc.o dbg/obj/clntcoredll/prefmgr.o dbg/obj/clntcoredll/nxtgrmgr.o dbg/obj/clntcoredll/mediamrk.o dbg/obj/clntcoredll/eventmgr.o dbg/obj/clntcoredll/dtrvtcon.o dbg/obj/clntcoredll/recordctl.o dbg/clntcore_libs.a -L/usr/X11R6/lib -lstdc++ /usr/bin/ld: dbg/clntcore.so: undefined versioned symbol name __dynamic_cast@@CXXABI_1.2 /usr/bin/ld: failed to set dynamic section sizes: Bad value collect2: ld returned 1 exit status make[1]: *** [dbg/clntcore.so] Error 1 Out of this error, If I remove the things I know I'm building this time around: gcc -shared -L/usr/X11R6/lib -lstdc++ I'm left with the above. How can I determine what the additional things were built as? Thanks David ----- Original Message ----- From: "Eljay Love-Jensen" <eljay@xxxxxxxxx> To: "David Stockwell (local)" <dstockwell@xxxxxxxxxxxxxxxxxxxxx> Sent: Wednesday, July 09, 2003 1:26 PM Subject: Re: undefined versioned symbol name __dynamic_cast@@CXXABI_1.2 > Hi David, > > >Do you happen to have any ideas on how to get rid of the problem I'm > experiencing? > > The only thing I can think of is that you are trying to link against > libraries compiled with a different version of the compiler. But that's > just a guess. > > --Eljay > > >