http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58949
Bug ID: 58949 Summary: libcilkrts will not bootstrap on x86_64 without libstdc++.i686 32 bit libraries installed Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap Assignee: unassigned at gcc dot gnu.org Reporter: amacleod at redhat dot com on x86_64-unknown-linux-gnu bootstrap fails during configuration of libcilkrts. When testing for a functioning c++ compiler, the executable builds fine, but fails to execute because the executable is looking for the 32 bit system library at some point instead of using the local libraries built by the toolchain. You should be able to reproduce this by bootstrapping on an x86_64 box which does not have libstdc++.i686 installed. When I installed libstdc++.i686 on my system the problem went away...