Commit d19e3a5b21 ("Makefile: add NEEDS_LIBRT to optionally link with
librt", 2016-07-07) introduced the NEEDS_LIBRT build variable to
disassociate the HAVE_CLOCK_GETTIME variable with the unconditional
linking of the librt library. At one time, the clock_gettime() function
was not available as part of the libc library and (on some unix systems)
required linking with librt.
Commit 52fcec75ce ("config.mak.uname: define NEEDS_LIBRT under Linux, for
now", 2016-07-10) set the NEEDS_LIBRT variable in the Linux section of
the config.mak.uname file, since Debian 7 (wheezy) was one of the few
remaining distributions, with glibc 2.13, that required linking with
librt for clock_gettime(). Note that from glibc version 2.17, this is no
longer necessary.
Note that Debian 7.0 was released on May 4th, 2013 and benefited from
long term support until May 2018 when it went end-of-life. Since that
time, Linux distributions use a more up-to-date library, for example:
Distribution version end of support
Debian 8 2.19 30th June 2020
RHEL 8 2.28 31st May 2024 *
Ubuntu 16.04 2.23 30th Apr 2021
* paid 'Maintenance support' ends 31st May 2029
Since it is no longer required, remove NEEDS_LIBRT from the Makefile and
config.mak.uname.
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git - fast, scalable, distributed revision control system
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.
Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.
Please read the file INSTALL for installation instructions.
Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.
See Documentation/gittutorial.adoc to get started, then see
Documentation/giteveryday.adoc for a useful minimum set of commands, and
Documentation/git-<commandname>.adoc for documentation of each command.
If git has been correctly installed, then the tutorial can also be
read with man gittutorial or git help tutorial, and the
documentation of each command with man git-<commandname> or git help <commandname>.
CVS users may also want to read Documentation/gitcvs-migration.adoc
(man gitcvs-migration or git help cvs-migration if git is
installed).
The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission and Documentation/CodingGuidelines).
Those wishing to help with error message, usage and informational message
string translations (localization l10) should see po/README.md
(a po file is a Portable Object file that holds the translations).
To subscribe to the list, send an email to git+subscribe@vger.kernel.org (see https://subspace.kernel.org/subscribing.html for details). The mailing list archives are available at https://lore.kernel.org/git/, https://marc.info/?l=git and other archival sites.
Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.
The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.
The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):
- random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
- stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
- "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
- "goddamn idiotic truckload of sh*t": when it breaks