On 02/01/2014 05:17 PM, Erotavlas_turbo@xxxxxxxxx wrote:
So is not allowed to compile with one version and flto options and link with
an old version?
Yes, this is documented:
The current implementation of LTO makes no attempt to generate
bytecode that is portable between different types of hosts. The
bytecode files are versioned and there is a strict version check,
so bytecode files generated in one version of GCC will not work
with an older/newer version of GCC.
It seems that the version check does not actually work, which is a bug
(please report it in Bugzilla). But LTO is really sensitive to compiler
and library versions, so this will not solve your original problem.
--
Florian Weimer / Red Hat Product Security Team
