libx11 source package in Nile V2.0
libx11-6: X11 client-side library
libx11-6-dbgsym: debug symbols for libx11-6
libx11-6-udeb: X11 client-side library
libx11-data: X11 client-side library
libx11-dev: X11 client-side library (development headers)
libx11-doc: X11 client-side library (development documentation)
libx11-xcb-dev: Xlib/XCB interface library (development headers)
libx11-xcb1: Xlib/XCB interface library
libx11-xcb1-dbgsym: debug symbols for libx11-xcb1