On Wed, Aug 5, 2020 at 2:21 PM Jeff Law <law@xxxxxxxxxx> wrote: > > On Wed, 2020-08-05 at 21:56 +0200, David Schwörer wrote: > > On 8/5/20 8:45 PM, Christoph Junghans wrote: > > > Hi, > > > > > > I am trying to rebuild espresso to adapt to the recent cmake changes, > > > when doing this I hit > > > https://github.com/espressomd/espresso/issues/3396, which prevents us > > > from compiling espresso with -lto, so I set _lto_cflags to %{nil}, > > > which works for the build with openmpi, but gets ignored for the mpich > > > build. > > > > > > I think the problem is that CMake picks up the lto flags from mpicxx > > > and then puts them in > > > MPI_CXX_COMPILE_OPTIONS. (Also compare mpicc -show). > > > > > > So I think the fix would be to strip these flags from mpicc. Sounds reasonable? > > > > > > The flags also contain > > > '-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1', which effectively > > > makes it depend on redhat-rpm-config. We had a similar issue in hdf5 a > > > while back: https://bugzilla.redhat.com/show_bug.cgi?id=1794625 > > > > > > Christoph > > > > > Another related bug is: > > > > https://bugzilla.redhat.com/show_bug.cgi?id=1821728 > Note that the BZ complains about -fstack-clash-protection in LLVM which has had > various bits landing over the last few months. So that specific issue I'd expect > to resolve itself over time. The more general issue remains though. https://src.fedoraproject.org/rpms/mpich/pull-request/4 Christoph > > jeff > > > _______________________________________________ > devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx -- Christoph Junghans Web: http://www.compphys.de _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
