BFD Linker does like a generated file...

[Willem Jan Withagen]

Whilest building Ceph:

[100%] Linking CXX executable ../../bin/unittest_log
CMakeFiles/unittest_log.dir/__/log/test.cc.o: file not recognized: File 
format not recognized
c++: error: linker command failed with exit code 1 (use -v to see 
invocation)

Which is buildable after I've replaced the ld link with a link to ld.lld

2 questions:

- How do I get clang (and ld) to default use ld.lld without replacing 
the hardlink?

- Is there interest in the object-file to look at?

--WjW