/usr/share/common-lisp/source/mcclim/Backends/ is in cl-mcclim 0.9.6.dfsg.cvs20100315-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/common-lisp/source/mcclim/Backends/CLX/
/usr/share/common-lisp/source/mcclim/Backends/CLX/clim-extensions.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/frame-manager.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/graft.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/image.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/keysymdef.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/keysyms-common.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/keysyms.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/medium.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/package.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/port.lisp
/usr/share/common-lisp/source/mcclim/Backends/CLX/system.lisp
/usr/share/common-lisp/source/mcclim/Backends/Graphic-Forms/
/usr/share/common-lisp/source/mcclim/Backends/Graphic-Forms/frame-manager.lisp
/usr/share/common-lisp/source/mcclim/Backends/Graphic-Forms/gadgets.lisp
/usr/share/common-lisp/source/mcclim/Backends/Graphic-Forms/graft.lisp
/usr/share/common-lisp/source/mcclim/Backends/Graphic-Forms/medium.lisp
/usr/share/common-lisp/source/mcclim/Backends/Graphic-Forms/package.lisp
/usr/share/common-lisp/source/mcclim/Backends/Graphic-Forms/pixmap.lisp
/usr/share/common-lisp/source/mcclim/Backends/Graphic-Forms/port.lisp
/usr/share/common-lisp/source/mcclim/Backends/Graphic-Forms/utils.lisp
/usr/share/common-lisp/source/mcclim/Backends/Null/
/usr/share/common-lisp/source/mcclim/Backends/Null/frame-manager.lisp
/usr/share/common-lisp/source/mcclim/Backends/Null/graft.lisp
/usr/share/common-lisp/source/mcclim/Backends/Null/medium.lisp
/usr/share/common-lisp/source/mcclim/Backends/Null/package.lisp
/usr/share/common-lisp/source/mcclim/Backends/Null/port.lisp
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/README
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/opengl-frame-manager.lisp
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/opengl-medium.lisp
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/opengl-port.lisp
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/opengl-x-frame-manager.lisp
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/opengl-x-graft.lisp
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/opengl-x-port-after.lisp
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/opengl-x-port-before.lisp
/usr/share/common-lisp/source/mcclim/Backends/OpenGL/system.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/
/usr/share/common-lisp/source/mcclim/Backends/PostScript/afm.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/class.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/encoding.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/font.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/generate-metrics.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/graphics.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/package.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/paper.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/sheet.lisp
/usr/share/common-lisp/source/mcclim/Backends/PostScript/standard-metrics.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/BUGS
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/NOTES
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/cairo-ffi.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/cairo.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/clim-fix.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/event.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/ffi.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/frame-manager.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/gadgets.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/gdk.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/graft.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/gtk-ffi.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/keygen.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/keys.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/medium.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/package.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/pango.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/pixmap.lisp
/usr/share/common-lisp/source/mcclim/Backends/gtkairo/port.lisp