/usr/include/glbinding/gl10/ is in libglbinding-dev 2.1.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/glbinding/gl10/bitfield.h
/usr/include/glbinding/gl10/boolean.h
/usr/include/glbinding/gl10/enum.h
/usr/include/glbinding/gl10/functions.h
/usr/include/glbinding/gl10/gl.h
/usr/include/glbinding/gl10/types.h
/usr/include/glbinding/gl10/values.h
/usr/include/glbinding/gl10ext/bitfield.h
/usr/include/glbinding/gl10ext/boolean.h
/usr/include/glbinding/gl10ext/enum.h
/usr/include/glbinding/gl10ext/functions.h
/usr/include/glbinding/gl10ext/gl.h
/usr/include/glbinding/gl10ext/types.h
/usr/include/glbinding/gl10ext/values.h