Static linking considered harmful

[Jakub Jelinek]

On Wed, Nov 22, 2006 at 10:38:01AM -0800, John Reiser wrote:
> Jakub Jelinek wrote:
> > If you want bit-reproduceable results, you can equally well
> > just stick the shared libraries you need into the same directory as the
> > program and run it as
> > ./ld-linux*.so.2 --library-path . ./the_numerical_program arguments
> > it will cost you just a few extra lines in the Makefile, IMHO not a big
> > deal.
> 
> Yes, the primary outputs will be the same.  But the total user interface
> will be different.  The process name (revealed by ps, top, etc.) will be
> ld-linux*.so.2 instead of the_numerical_program.  So existing scripts
> that monitor (or get out of the way of) the_numerical_program won't find it;
> killall won't work; oprofile will group all such programs together
> as ld-linux instead of as separate numerical programs, etc.  This
> "other stuff" is important to users and administrators.

So you link with -Wl,--dynamic-linker,./ld-linux.so.2,-rpath,'${ORIGIN}/lib'
or something similar, that's an implementation detail.

	Jakub