[4911] in testers
possible compatibility issues in g++ between Athena 8.4 and 9.0 Suns
daemon@ATHENA.MIT.EDU (Alex T Prengel)
Wed Jun 27 11:39:47 2001
Message-Id: <200106271539.LAA17268@dit.mit.edu>
To: testers@MIT.EDU
cc: alexp@MIT.EDU, gnu@MIT.EDU
Date: Wed, 27 Jun 2001 11:39:42 -0400
From: Alex T Prengel <alexp@MIT.EDU>
Hi,
I've run into some problems in compiling with g++ when moving from Athena
8.4 to Athena 9.0. I have some source demos that do fancy 3d graphics,
linking against a set of libraries built for this.
The libraries, part of the Visualization Toolkit, were built from source
using g++ in the gnu locker about 6 months ago.
Now:
On Athena 8.4, using gnu locker g++, the examples build and runs fine.
On Athena 9.0, using the same g++ version, two bad things happen:
1. ld issues warnings about "section .stabstr: malformed string table,
initial or final byte", in reference to the Visualization Toolkit
libraries, but builds a binary anyway.
2. When I try to run the binary built in 1. on Athena 9.0, I get:
fatal: libstdc++.so.2.10.0: open failed: No such file or directory
and I can't actually find this library anywhere obvious. Running ldd
on the equivalent binary generated on an 8.4 machine (i.e. built from
the same source code, using same g++) shows no dependence on this
library- nor do any of the Visualization Toolkit libraries. If on 9.0
I substitute in the final link step CC instead of g++ (using .o files
built with g++), it works OK (the libstdc++.so.2.10.0 dependence is
not there).
The binary built on 8.4 that doesn't have the problem also works fine
on 9.0.
To reproduce the problem, do, on an 8.4 Sun and a 9.0 Sun:
add vtkit
set_vtk_patented_demos
make sweptMac (in the window that appears)
In case anyone wonders why I don't rebuild the Visualization Toolkit
libraries on Athena 9.0- I could do this, but it's a huge job and
takes most of a day to finish. I'd rather not do this unless there's
no other way around the problem (and I'm not sure that would fix it).
Alex
