Do a cross-project merge of Paul Mackerras' gitk visualizer
[git/git.git] / INSTALL
1
2 Git installation
3
4 Normally you can just do "make" followed by "make install", and that
5 will install the git programs in your own ~/bin/ directory. If you want
6 to do a global install, you can do
7
8 make prefix=/usr install
9
10 (or prefix=/usr/local, of course). Some day somebody may send me a RPM
11 spec file or something, and you can do "make rpm" or whatever.
12
13 Issues of note:
14
15 - git normally installs a helper script wrapper called "git", which
16 conflicts with a similarly named "GNU interactive tools" program.
17
18 Tough. Either don't use the wrapper script, or delete the old GNU
19 interactive tools. None of the core git stuff needs the wrapper,
20 it's just a convenient shorthand and while it is documented in some
21 places, you can always replace "git commit" with "git-commit-script"
22 instead.
23
24 But let's face it, most of us don't have GNU interactive tools, and
25 even if we had it, we wouldn't know what it does. I don't think it
26 has been actively developed since 1997, and people have moved over to
27 graphical file managers.
28
29 - Git is reasonably self-sufficient, but does depend on a few external
30 programs and libraries:
31
32 - "zlib", the compression library. Git won't build without it.
33
34 - "openssl". The git-rev-list program uses bignum support from
35 openssl, and unless you specify otherwise, you'll also get the
36 SHA1 library from here.
37
38 If you don't have openssl, you can use one of the SHA1 libraries
39 that come with git (git includes the one from Mozilla, and has
40 its own PowerPC-optimized one too - see the Makefile), and you
41 can avoid the bignum support by excising git-rev-list support
42 for "--merge-order" (by hand).
43
44 - "libcurl". git-http-pull uses this. You can disable building of
45 that program if you just want to get started.
46
47 - "GNU diff" to generate patches. Of course, you don't _have_ to
48 generate patches if you don't want to, but let's face it, you'll
49 be wanting to. Or why did you get git in the first place?
50
51 Non-GNU versions of the diff/patch programs don't generally support
52 the unified patch format (which is the one git uses), so you
53 really do want to get the GNU one. Trust me, you will want to
54 do that even if it wasn't for git. There's no point in living
55 in the dark ages any more.
56
57 - "merge", the standard UNIX three-way merge program. It usually
58 comes with the "rcs" package on most Linux distributions, so if
59 you have a developer install you probably have it already, but a
60 "graphical user desktop" install might have left it out.
61
62 You'll only need the merge program if you do development using
63 git, and if you only use git to track other peoples work you'll
64 never notice the lack of it.