by masked.slac.. » Mon, 13 Feb 2006 16:10:56
ld: warning empty table of contents:
/Users/username/MPI/lib/libmpichf90.a (can't load from it)
I'm trying to compile a code and get this error from the MPI compiler.
Note MPI is installed to /Users/username/MPI(./configure
--prefix=/Users/username/MPI), not under /.
by Bruce Barnet » Mon, 13 Feb 2006 21:56:59
> ld: warning empty table of contents:
> /Users/username/MPI/lib/libmpichf90.a (can't load from it)
and let us know what happens.
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by masked.slac.. » Tue, 14 Feb 2006 02:55:23
> > What does this error mean?
> > ld: warning empty table of contents:
> > /Users/username/MPI/lib/libmpichf90.a (can't load from it)
> try
> ls -l /Users/username/MPI/lib/libmpichf90.a
> nm /Users/username/MPI/lib/libmpichf90.a
> and let us know what happens.
> --
> Sending unsolicited commercial e-mail to this account incurs a fee of
> $500 per message, and acknowledges the legality of this contract.
$ nm $HOME/MPI/lib/libmpichf90.a
/Users/username/MPI/lib/libmpichf90.a(mpi.o):
0000001c C _mpipriv1_
00000018 C _mpipriv2_
00000002 C _mpiprivc_
1. CodeWarrior Linux and ld error messages
I received a lovely copy of Metrowerks CW 6.0 Linux Edition by courier
today....mmmmm..
But when building an OpenGL app which used to compile, link & work fine
with my Makefile which I used to use, I received about 148 errors.
I've now managed to get it down to 1 error, but don't understand enough
about what it means in order to sort it out. The message is:
Link error: model.c.o (.data+0x0): multiple definition of
'lightposition'
grow.c.o (.data+0x24): first defined here
model.c.o (.data+0x10): multiple definition of 'lightdirection'
grow.c.o (.data+0x34): first defined here
model.c.o (.data+0x1c): multiple definition of 'grnd'
grow.c.o (.data+0x40): first defined here
collect2: ld returned exit 1 status
collect2: ld returned exit 1 status
The three variables that it refers to are defined (ONCE) in model.h (not
model.c) and nowhere else. I've spent hours trying to figure this out,
and I think the cheif problem is that I don't quite understand how
CodeWarrior is linking all this stuff together.
Can anyone help me figure out what's going on here? Or at least point me
to a document which explains ld's error messages, because it's driving
me nuts.
Would it be better if I uninstalled CodeWarrior and installed it with
the GCC version that comes with it? I am using version 2.95.3 and I
believe that the version that comes with it is 2.95.2.
Thanks in anticipation,
Peter Mantell
--
"Life would be so much easier if we could just look at the source code."
-- Dave Olson
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