nrandom-root
Corrected comment about the ".POSIX" line in all Makefile.am files.
Updated URLs.
* Other corrections (essentially bad or missing declarations) in metaMPFR.
[INSTALL,doc/update-faq,tools/announce-text] With wget, use the --no-config option as the user's .wgetrc file may significantly change the behavior and possibly yield errors. See discussion at <https://lists.debian.org/debian-user/2021/01/msg01021.html>.
Replaced "TZ=UTC" by "TZ=UTC0" for portability.
Updated mpfr.org URL's to use https (except in ChangeLog and NEWS).
Copyright notice update: added 2022.
[tools/{ck-copyright-notice,ck-inits-clears}] Ignore Emacs lock files (symbolic links) to avoid a failure when a file is being edited.
Tests: the check of subnormal support is done when running the tests.
use autogen.sh
Added tools/repl-variadic Perl script to replace the variadic functions mpfr_clears, mpfr_inits and mpfr_inits2, in case they are not supported by the compiler.
Updated the www.gnu.org URL's (http → https) on all the files with: perl -pi -e 's,http://www.gnu.org/,https://www.gnu.org/,g' **/*(.) under zsh.
[tools/update-version] Improved a message.