when sanitizing the namespaces of client-windows, encontered few
incompatibilities due to windows.h inclusion. This header file defines a
lot of common macros such as ERROR... This patch wraps all conflics with
push/pop macro pragmas.

Change-Id: I7f95fac84ace5388e7134db372bd36720210f886
Reviewed-by: Anthony Léonard <anthony.leonard@savoirfairelinux.com>