CXC::constant::setonce This module was written for the case where 1 a constant's value cannot be set until run time 2 attempts to use the constant before its value is set should be fatal. 3 attempts to set the constant's value more than once should be fatal INSTALLATION This is a Perl module distribution. It should be installed with whichever tool you use to manage your installation of Perl, e.g. any of cpanm . cpan . cpanp -i . Consult http://www.cpan.org/modules/INSTALL.html for further instruction. Should you wish to install this module manually, the procedure is perl Build.PL ./Build ./Build test ./Build install COPYRIGHT AND LICENSE This software is Copyright (c) 2023 by Smithsonian Astrophysical Observatory. This is free software, licensed under: The GNU General Public License, Version 3, June 2007