/usr/include/xercesc/util/Compilers/ is in libxerces-c2-dev 2.8.0+deb1-3build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/xercesc/util/Compilers/BorlandCDefs.hpp
/usr/include/xercesc/util/Compilers/CSetDefs.hpp
/usr/include/xercesc/util/Compilers/CodeWarriorDefs.hpp
/usr/include/xercesc/util/Compilers/DECCXXDefs.hpp
/usr/include/xercesc/util/Compilers/GCCDefs.hpp
/usr/include/xercesc/util/Compilers/HPCCDefs.hpp
/usr/include/xercesc/util/Compilers/IBMVAOS2Defs.hpp
/usr/include/xercesc/util/Compilers/IBMVAW32Defs.hpp
/usr/include/xercesc/util/Compilers/MIPSproDefs.hpp
/usr/include/xercesc/util/Compilers/MVSCPPDefs.hpp
/usr/include/xercesc/util/Compilers/OS400SetDefs.hpp
/usr/include/xercesc/util/Compilers/PTXCCDefs.hpp
/usr/include/xercesc/util/Compilers/QCCDefs.hpp
/usr/include/xercesc/util/Compilers/SCOCCDefs.hpp
/usr/include/xercesc/util/Compilers/SunCCDefs.hpp
/usr/include/xercesc/util/Compilers/SunKaiDefs.hpp
/usr/include/xercesc/util/Compilers/TandemCCDefs.hpp
/usr/include/xercesc/util/Compilers/VCPPDefs.hpp