* Daniel P. Berrangé:
Disabling LTO in the RPM spec confirms this and makes things pass
again. Hacking the makefiles to remove the -fno-lto option when
building the test suite binaries also fixes things.
I don't see any mention of LD_PRELOAD being impacted by LTO in the
Fedora feature change page, but I can imagine how it would be.
LTO should still export the same functions as before, and should not
imply -fno-semantic-interposition by default. The linker plugin
provides the necessary information to GCC. What you are observing could
be the result of a toolchain bug.
Thanks,
Florian