File Xerces-c-2.8.0-optflags.patch of Package Xerces-c
--- src/xercesc/runConfigure +++ src/xercesc/runConfigure @@ -297,9 +297,9 @@ elif test $platform = "os390"; then debugflag="-DNDEBUG"; elif test $platform = "linux"; then - debugflag="-w -O2 -DNDEBUG"; + debugflag="$RPM_OPT_FLAGS -DNDEBUG"; else - debugflag="-w -O -DNDEBUG"; + debugflag="$RPM_OPT_FLAGS -DNDEBUG"; fi else echo "OVERRIDE FOR OS400 ON AIX"