Load of .so failing for unknown and capricious reasons

From: Nathan Meyers (nmeyers@teleport.com)
Date: Sun Jun 21 1998 - 17:31:20 MEST 

Hi,

I'm having some odd difficulties integrating my own classes with Root;
TSystem::Load() can fail or succeed on my .so's for reasons that are not
obvious. Is there a way to get more detail than "Dynamic link library
... can not load"?

One of my failures occurs on one of my systems but not the other:

System 1: Linux 2.0.32, RH5.0 with libg++, running the Root compiled for
gcc environment

System 2: Linux 2.0.34, RH5.1 with egcs 2.90.27, running the Root
compiled for egcs environment

Root itself works in both environments, but when I build my own .so on
system 1, I'm able to load and use it; when I do the same on system 2
(clean build on identical sources), the gSystem->Load() call fails.
There are no obvious problems, such as missing or inconsistent shared
library dependencies.

Any insights into what factors can make a TSystem::Load() call fail?

Nathan Meyers
nmeyers@teleport.com

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