http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52850
--- Comment #2 from Daniel Richard G. <skunk at iskunk dot org> 2012-04-24 15:18:33 UTC --- (In reply to comment #1) > That sounds like an user problem rather than a GCC issue. >From the "Installing GCC: Configuration" doc: --with-system-zlib Use installed `zlib' rather than that included with GCC. If this option was not given (and it wasn't), then GCC should be using its own zlib, regardless of the presence of other instances of zlib outside of the build tree.