Hello,
I think I have managed to compile Openexr under Redhad 9 however I'm
having problems running the "exrdisplay" program. When I run it I get
the following error: .../libstdc++.so.5: version `GLIBCPP_3.2.2' not
found (required by /usr/local/lib/libIlmImf.so.2)
I noticed that it works fine when I'm root.
Any ideas? thanks
Linux has all sorts of funkiness with libc and libc++ versions that I
find it difficult to keep them clear between versions.
I'd suggest installing any of the available compat-libstdc++ RPMS and
giving it another go ... if they're already installed, check the output
of 'ldd' as root and as your user, and see which library file it loads
when it works - and check that file's permissions. You may also have to
rebuild your dynamic loader's cache using the 'ldconfig' command.
hth, Klaus
Hi Klaus,
thanks for your help.
I tried 'ldd' and yes, 'exrdisplay' is actually calling a different version
of libstdc++.so.5 when i'm root which is located in /usr/lib.
This is the output from ldd:
From root:
..
libstdc++.so.5 => /usr/lib/libstdc++.so.5 (0x40360000)
...
From user:
..
libstdc++.so.5 =>
/usr/Softimage/XSI_4.2/Application/mainwin/mw/../misc/linux/gcc/fixed3/lib/libstdc++.so.5
(0x40360000)
..
Do I have to reinstall openexr with some different options to make sure that
I use the this library as a user? Why would it use this library and not the
one in /usr/lib?
Usually, 'ldconfig' (at least, I'm assuming you're on a system with that
facility) takes care of such things. However, it is always possible to
alter the behaviour of the runtime loader using either of the LD_PRELOAD
or LD_LIBRARY_PATH (or optionally on IRIX - LD_LIBRARYN32_PATH)
environment variables.
I would surmise that by the presence of an XSI path in your ldd output,
your normal user account uses the LD_LIBRARY_PATH variable, and places the
path to the libstdc++.so.5 that comes bundled with XSI earlier in the path
than /usr/lib; not so with root, which is why it works for root.
It may not be the XSI environment - so don't necessarily point the finger
at that application - but I'd be fairly willing to believe that your
normal user account sets LD_LIBRARY_PATH, and that's the source of the
discrepancy.
hth,
Klaus
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