@samp{automake --help}. Also, files which are read by @code{configure}
(i.e. the source files corresponding to the files specified in various
Autoconf macros such as @code{AC_CONFIG_FILES} and siblings) are
-automatically distributed.
+automatically distributed. Files included in @file{Makefile.am}s (using
+@code{include}) or in @file{configure.in} (using @code{m4_include}) are
+also distributed.
Still, sometimes there are files which must be distributed, but which
are not covered in the automatic rules. These files should be listed in