[Haskell] Dynamically loading wxhaskell?

Simon Marlow simonmar at microsoft.com
Tue Apr 13 16:53:31 EDT 2004

> On Fri, Apr 02, 2004 at 01:59:08PM +0100, Simon Marlow wrote:
> > Very strange.  Is /usr/lib/libdl.so perhaps a symlink to a 
> library that
> > doesn't exist?  That could happen if an upgrade had gone 
> wrong, perhaps.
> Thanks, it was a dangling symlink due to my filesystem layout.  Sorry
> for the stupidity.
> But it still won't run, because (apparently) ghci won't work with
> stripped .so files, and Debian policy is to strip them.  From the
> Debian policy manual, section 10.2:
>      All installed shared libraries should be stripped with
>           strip --strip-unneeded <your-lib>
>      (The option `--strip-unneeded' makes `strip' remove only 
> the symbols
>      which aren't needed for relocation processing.) Shared 
> libraries can
>      function perfectly well when stripped, since the symbols 
> for dynamic
>      linking are in a separate part of the ELF object file.[1]
> [1]  You might also want to use the options 
> `--remove-section=.comment' and
>      `--remove-section=.note' on both shared libraries and 
> executables, and
>      `--strip-debug' on static libraries.
> Any chance of fixing this in ghci, or do I have to keep an extra copy
> of wxwidgets installed?  What tool does ghci use for its dynamic
> loading?

I tried stripping /usr/lib/libwx_gtk-2.4.so.0.1.1 and libwxc-0.6.so, and
GHCi was still able to load the wx package successfully.  In fact,
libwx_gtk appeared to be already stripped.

What error messages do you get, specifically?


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