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Re: libiberty reports: "undefined reference to dlopen"
- To: binutils at sourceware dot cygnus dot com
- Subject: Re: libiberty reports: "undefined reference to dlopen"
- From: "Jeff W." <jeff at dark-techno dot org>
- Date: Tue, 3 Jul 2001 16:49:32 -0400 (EDT)
On Tue, 3 Jul 2001, H . J . Lu wrote:
> > cplus-dem.o(.text+0xae7): undefined reference to `dlopen'
> > cplus-dem.o(.text+0xaf6): undefined reference to `dlerror'
> > cplus-dem.o(.text+0xb1b): undefined reference to `dlsym'
> > cplus-dem.o(.text+0xb2c): undefined reference to `dlerror'
> > collect2: ld returned 1 exit status
> >
>
> It looks like Debian uses a strange binutils. As far as I know,
> those dlxxx functions are only used in my Linux binutils. But in
> my Linux binutils, they shiuld be marked as weak undefined:
>
> # objdump --sym /usr/lib/libiberty.a | grep " dl"
> 0000000000000000 w *UND* 0000000000000000 dlopen
> 0000000000000000 w *UND* 0000000000000000 dlerror
> 0000000000000000 w *UND* 0000000000000000 dlsym
>
> so that linker won't complain if they don't exist.
>
>
I tried that, and I get the following:
mnml:/usr/local/tau-2.9# objdump --sym /usr/lib/libiberty.a | grep " dl"
00000000 *UND* 00000000 dlopen
00000000 *UND* 00000000 dlerror
00000000 *UND* 00000000 dlsym
Is there a way I can change it to how you've got yours set up? If not,
how can I fix this problem? Like I said, I tried installing the .tar.gz
version and still, same problems.
--
/---------------------------------\
Jeff W., jeff@dark-techno.org
ICQ# 17989474
"It's substance, not process"
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