Sorry, I was wrong - that is *not* a thing of GHC 7.0.2 vs  7.0.3. Now it occurs in both environments...
Hartmut

On Mon, Jul 25, 2011 at 10:14 AM, Hartmut <hartmut0407@googlemail.com> wrote:
When I use GHC 7.0.2 instead of GHC 7.0.3  the problem with "double-conversion / stdc++" on my Linux disappears.

Hartmut