Re: Solaris gcc 4.0.0 static linking of libgcc.a

["Roland Lengfeldner" <lengfeldner_roland at gmx dot at>]

thanks for your fast answer, 

I must admit that my first description of the problem was a bit outdated,
but I will give you some more information: I first tried the
gcc-4.0-10012005 snapshot, together with the -fno-exceptions flag, and there
was no dynamic linking of libgcc_s.so necessary. gcc-3.4.3 works in the same
way, no dynamic linking necessary. With the newest snapshot gcc-4.0-07032005
there is dynamic linking necessary. The code is written in C++, but there is
no exception handling.

I know I should use -static-libgcc/-shared-libgcc, but there were some
resons why I didn't use it, which I can't remember now, but I will try.

I do just a new installation of gcc-4.0-10012005 to verify the behaviour,
this will last some time, unfortunately.

kind regards,
Roland Lengfeldner

> > I have a question about the different behaviour of the Linux and Solaris
> > versions of gcc (3.4.x and 4.0.x) regarding static linking of libgcc. I
> do
> > the static linking by adding the libgcc.a library.
> 
> Ideally you should not.  Use -shared-libgcc or -static-libgcc instead.
> 
> > The Linux versions link libgcc statically, as do the Solaris versions.
> But
> > then the Solaris version requires to additionally load libgcc_s.so,
> although
> > there there no undefined references to GCC. When I change the specs file
> > (for 3.4.x), so that the libgcc section of the Solaris version matches
> the
> > Linux version, also the Solaris version behaves like *I* expect.
> 
> The shared version is required on Solaris to properly support exception 
> handling across shared libraries.
> 
> > Now my question: which behaviour is the correct one?
> 
> Both.
> 
> -- 
> Eric Botcazou
> 

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