The --gnu option (or gnu in the
AUTOMAKE_OPTIONS variable) causes
automake to check
If the --add-missing option is given,
add a generic version of the INSTALL file as well as the
COPYING file containing the text of the current version of the
GNU General Public License existing at the time of this Automake release
(version 3 as this is written, https://www.gnu.org/copyleft/gpl.html).
However, an existing COPYING file will never be overwritten by
Note that this option will be extended in the future to do even more
checking; it is advisable to be familiar with the precise requirements
of the GNU standards. Also, --gnu can require certain
non-standard GNU programs to exist for use by various maintainer-only
rules; for instance, in the future
pathchk might be required for
The --gnits option does everything that --gnu does, and checks the following as well:
VERSIONis checked to make sure its format complies with Gnits standards.
VERSIONindicates that this is an alpha release, and the file README-alpha appears in the topmost directory of a package, then it is included in the distribution. This is done in --gnits mode, and no other, because this mode is the only one where version number formats are constrained, and hence the only mode where Automake can automatically determine whether README-alpha should be included.