emacs/m4/__inline.m4, branch scratch/annotation-function-improvements

Update copyright year to 2021

2021-01-01T09:13:56+00:00

Run "TZ=UTC0 admin/update-copyright".

Update copyright year to 2020

2020-01-01T00:59:52+00:00

Run "TZ=UTC0 admin/update-copyright $(git ls-files)".

Update from Gnulib

2019-01-01T02:20:07+00:00

This incorporates mostly just copyright-year changes, plus
recent minor updates from glibc for the non-Emacs regular
expression code.

Update lib/regex from glibc via Gnulib

2018-10-15T05:57:57+00:00

This syncs recent refactorings from glibc, and incorporates:
2018-10-15 libc-config: merge from glibc
2018-10-15 regex: depend on libc-config
* .gitignore: Do not ignore m4/_*.m4.
* lib/cdefs.h: New file, copied from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* lib/libc-config.h, m4/__inline.m4: New files, copied from Gnulib.
* lib/regcomp.c, lib/regex.c, lib/regex_internal.c:
* lib/regex_internal.h, lib/regexec.c:
Copy from glibc via Gnulib.