remove the now-unnecessary use of AC_LIBSOURCES.
* gl/modules/root-dev-ino: New file. * lib/root-dev-ino.c, lib/root-dev-ino.h: Move these files ... * gl/lib/root-dev-ino.c, gl/lib/root-dev-ino.h: ... to here. * m4/root-dev-ino.m4: Move this file ... * gl/m4/root-dev-ino.m4: ... to here. * bootstrap.conf (gnulib_modules): Add root-dev-ino.