On Fri, Nov 30, 2007 at 01:28:58PM -0300, Alejandro Pulver wrote: > Hello. > > When I was updating the games/deng port, I found it failed at runtime > with the following error: > > % doomsday > While opening dynamic library > /usr/local/lib/libdropengl.so: > /usr/local/lib/libdropengl.so: Undefined symbol "ArgExists" > DD_InitDGL: Loading of libdropengl.so failed. > (null). > > The function is defined in m_args.c which is included in both > "doomsday" and "libdropengl.so". But nm(1) reports it as undefined for > "libdropengl.so". Also, it is loaded with RTLD_NOW. > > % nm `which doomsday` | grep ArgExists > 080d9ef0 T ArgExists You are looking at the wrong symbol table. ELF objects have the dynamic symbol table that is used during run-time linking, and symbol table used by the static linker ld. The former table is shown by nm -D.
I suspect that you need to link the doomsday binary with the --export-dynamic flag. See the info ld for details. > > % nm /usr/local/lib/libdropengl.so | grep ArgExists > U ArgExists > > The files are linked with the "-flat namespace" and "-undefined > suppress" flags in Mac OS X (don't know if it's relevant here). > > I think the simplest solution (if possible, of course) would be to make > dlopen() resolve these symbols to the main executable. I tried to do > this with RTLD_GLOBAL without success. > > The port is available here (note that the application uses cmake to > build): > ftp://ftp.alepulver.com.ar/deng.tar.bz2 > > If you need any other information just ask me. I will appreciate any > help. > > Thanks and Best Regards, > Ale
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