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Building older versions of Git may require tweaking some build knobs. In
particular, very old versions of Git will fail to build with recent
OpenSSL, because the bignum type switched from a struct to a pointer.
The i5500 interop test uses Git v1.0.0 by default, which triggers this
problem. You can work around it by setting NO_OPENSSL in your
GIT_TEST_MAKE_OPTS variable. But there are two downsides:
1. You have to know to do this, and it's not at all obvious.
2. That sets the options for _all_ versions of Git that we build. And
it's possible for two versions to require conflicting knobs. E.g.,
building with "make NO_OPENSSL=Nope OPENSSL_SHA1=Yes" causes
imap-send.c to barf, because it declares a fallback typedef for SSL.
This is something we may want to fix, but of course many historical
versions are affected, and the interop scripts should be flexible
enough to build everything.
So let's introduce per-version make options, along with the ability for
scripts to specify knobs that match their default versions. That should
make everything build out of the box, but also allow testers flexibility
if they are testing interoperability between non-default versions.
We'll set NO_OPENSSL by default for v1.0.0 in i5500. It doesn't have to
worry about the conflict with OPENSSL_SHA1 because imap-send did not
exist back then (but if it did, it could also just explicitly use a
different hash implementation).
Signed-off-by: Jeff King <peff@peff.net>
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.txt to get started, then see
Documentation/giteveryday.txt for a useful minimum set of commands, and
Documentation/git-<commandname>.txt 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.txt
(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