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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

% 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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