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This incorporates:
2019-03-10 alloca-opt: Fix conflict mingw's new <alloca.h> file
2019-03-03 getloadavg: Write NULL for the null pointer
Reported by Michal Privoznik <mprivozn@redhat.com>.
* lib/getloadavg.c (getloadavg): Write NULL instead of 0.
* build-aux/config.guess, build-aux/move-if-change:
* doc/misc/texinfo.tex, lib/alloca.in.h, lib/getloadavg.c:
* m4/alloca.m4:
Copy from Gnulib.
* lib/gnulib.mk.in: Regenerate.

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

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

This incorporates:
2018-01-01 maint: Run 'make update-copyright'
2017-12-29 Add cross-compilation results for GNU/Hurd.
2017-12-12 explicit_bzero: port to macOS + Clang 9.0.0

This incorporates:
2017-09-13 all: prefer https: URLs
This just changes http: to https: in comments,
in files copied from Gnulib.

This incorporates:
2016-12-19 stdint: Fix WINT_MAX to match wint_t on mingw
2016-12-18 getopt: Fix link error for users of getopt() in <unistd.h>
2016-12-17 getlogin: Port to newer mingw
2016-12-17 stdint: Fix WINT_MAX to match wint_t on MSVC
2016-12-17 Avoid redefinition errors on MSVC
* lib/getopt.in.h, lib/stdint.in.h, lib/stdio.in.h, lib/unistd.in.h:
* m4/stdint.m4, m4/unistd_h.m4:
Copy from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
Plus, this commit updates the indenting on copyright notices to
match that of gnulib.

Run admin/update-copyright.

This incorporates:
2016-08-17 maint: preprocessor changes to support z/OS
2016-08-17 string: rename to avoid '__string'
* doc/misc/texinfo.tex, lib/alloca.in.h, lib/string.in.h:
Copy from gnulib.

This mostly just updates copyright dates of gnulib files.
It also updates to the latest version of texinfo.tex.

This mostly just updates copyright dates of gnulib files.
It also updates to the latest version of texinfo.tex.

This attempts to repair problems introduced by the bad merge
5491fd10.  The easiest way for me
to fix the badly-merged gnulib files was to run
'admin/merge-gnulib', so I did that, which also imported the
following changes:
* build-aux/update-copyright, m4/gnulib.m4:
Update from gnulib, incorporating:
2015-01-15 time: port to MinGW32 3.21
2015-01-15 update-copyright: apply to self
2015-01-11 update-copyright: recognize groff's \(co marker

2015-01-01 version-etc: new year

Run admin/update-copyright.

* lib/alloca.in.h: New version from gnulib, incorporating:
2012-07-03 alloca: add support for HP NonStop TNS/E native

Fixes: debbugs:11527

* .bzrignore: Add lib/alloca.h.
* Makefile.in (GNULIB_MODULES): Add alloca-opt.
* configure.in (AC_FUNC_ALLOCA): Remove almost all the alloca stuff,
as gnulib now does that for us.  Put alloca check after gl_INIT.
* lib/gnulib.mk, m4/gl-comp.m4: Regenerate.
* lib/alloca.in.h, m4/alloca.m4: New files, from gnulib.