Re: which version of gcc what used to compile library

[Colin Watson <cjwatson@debian.org>]

On Mon, Apr 07, 2003 at 11:14:31PM +0100, Shri Shrikumar wrote:
> On Mon, 2003-04-07 at 22:09, Travis Crump wrote:
> > Most of the g++ libraries built with g++-3.2 have package names ending 
> > in c102. 
> 
> I have found this to be not true. libwxgtk2.4 for example was compiled
> with gcc-3.2. On the other hand xerces seems to have the c102 extension.

If the library's soname version changed since the last version that was
compiled with g++-2.95, or if there was no previous version compiled
with g++-2.95, then the "c102" bit isn't necessary, otherwise it is.

See:

  http://people.debian.org/~rmurray/c++transition.html

> > It shouldn't matter if something was compiled with gcc-2.95 vs 
> >   gcc-3.2 as far as I understand it.
> 
> I found that I couldn't link an application which was compiled with
> g++-2.95 with libraries compiled with g++-3.2

For C++, yes, the ABI has changed (symbol mangling, for starters). The C
ABI should be fine.

-- 
Colin Watson                                  [cjwatson@flatline.org.uk]