Build fails: undefined reference to `ORServer::Class()'

[zykure]

I'm getting the following build error using latest master branch. I'm using ROOT 6.24 with Clang 14 on Linux.

Any ideas what's going on? To me it looks like an issue with ROOT class structures.

[1/20] Linking CXX executable getHeaderInRootFile
FAILED: getHeaderInRootFile 
: && /usr/bin/clang++  -rdynamic CMakeFiles/getHeaderInRootFile.dir/Applications/getHeaderInRootFile.cc.o -o getHeaderInRootFile -L/home/jbehrens/root/rootbuild/lib -Wl,-rpath,/home/jbehrens/root/rootbuild/lib:/home/jbehrens/workspace/OrcaRoot.git/build:  libOrcaRoot.so  -L/home/jbehrens/root/rootbuild/lib -lGui -lCore -lImt -lRIO -lNet -lHist -lGraf -lGraf3d -lGpad -lROOTVecOps -lTree -lTreePlayer -lRint -lPostscript -lMatrix -lPhysics -lMathCore -lThread -lMultiProc -lROOTDataFrame -pthread -lm -ldl -rdynamic  /home/jbehrens/root/rootbuild/lib/libXMLParser.so && :
/usr/bin/ld: libOrcaRoot.so: undefined reference to `ORServer::Class()'
/usr/bin/ld: libOrcaRoot.so: undefined reference to `ORServer::Streamer(TBuffer&)'
clang-14: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.