[Bug lto/96343] LTO ICE on PPC64le

[axel.huebl at web dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96343

--- Comment #2 from Axel <axel.huebl at web dot de> ---
The flags the CMake adds for LTO are -flto -fno-fat-lto-objects

The projects are otherwise C++11 and C++14 projects.