A further comment related to the previous. File libfb.a belongs to package xserver-xorg-core: $ dpkg -S libfb.a xserver-xorg-core: /usr/X11R6/lib/modules/libfb.a
A further comment related to the previous. lib/modules/ libfb.a
File libfb.a belongs to package xserver-xorg-core:
$ dpkg -S libfb.a
xserver-xorg-core: /usr/X11R6/