/usr/share/gccxml-0.9/GCC/2.95/std/ is in gccxml 0.9.0+cvs20120420-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gccxml-0.9/GCC/2.95/std/bastring.cc
/usr/share/gccxml-0.9/GCC/2.95/std/complext.h
/usr/share/gccxml-0.9/GCC/2.95/std/dcomplex.h
/usr/share/gccxml-0.9/GCC/2.95/std/fcomplex.h
/usr/share/gccxml-0.9/GCC/2.95/std/gslice_array.h
/usr/share/gccxml-0.9/GCC/2.95/std/indirect_array.h
/usr/share/gccxml-0.9/GCC/2.95/std/ldcomplex.h
/usr/share/gccxml-0.9/GCC/2.95/std/mask_array.h
/usr/share/gccxml-0.9/GCC/2.95/std/slice_array.h
/usr/share/gccxml-0.9/GCC/2.95/std/std_valarray.h
/usr/share/gccxml-0.9/GCC/2.95/std/straits.h
/usr/share/gccxml-0.9/GCC/2.95/std/valarray_meta.h