/usr/include/CLucene/config/ is in libclucene-dev 0.9.21b-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/CLucene/config/CompilerBcb.h
/usr/include/CLucene/config/CompilerGcc.h
/usr/include/CLucene/config/CompilerMsvc.h
/usr/include/CLucene/config/PlatformMac.h
/usr/include/CLucene/config/PlatformUnix.h
/usr/include/CLucene/config/PlatformWin32.h
/usr/include/CLucene/config/compiler.h
/usr/include/CLucene/config/define_std.h
/usr/include/CLucene/config/gunichartables.h
/usr/include/CLucene/config/repl_tchar.h
/usr/include/CLucene/config/repl_wchar.h
/usr/include/CLucene/config/threadCSection.h
/usr/include/CLucene/config/threadPthread.h