1 Installation Instructions
2 *************************
4 Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
5 2006 Free Software Foundation, Inc.
7 This file is free documentation; the Free Software Foundation gives
8 unlimited permission to copy, distribute and modify it.
13 You will need to build and install two libraries before you can
14 properly build pacman.
17 http://code.google.com/p/libarchive/
20 http://curl.haxx.se/libcurl/
22 Briefly, the shell commands `./configure; make; make install' should
23 configure, build, and install this package. The following
24 instructions are generic. Run `./configure --help` for specific
27 The `configure' shell script attempts to guess correct values for
28 various system-dependent variables used during compilation. It uses
29 those values to create a `Makefile' in each directory of the package.
30 It may also create one or more `.h' files containing system-dependent
31 definitions. Finally, it creates a shell script `config.status' that
32 you can run in the future to recreate the current configuration, and a
33 file `config.log' containing compiler output (useful mainly for
34 debugging `configure').
36 It can also use an optional file (typically called `config.cache'
37 and enabled with `--cache-file=config.cache' or simply `-C') that saves
38 the results of its tests to speed up reconfiguring. Caching is
39 disabled by default to prevent problems with accidental use of stale
42 If you need to do unusual things to compile the package, please try
43 to figure out how `configure' could check whether to do them, and mail
44 diffs or instructions to the address given in the `README' so they can
45 be considered for the next release. If you are using the cache, and at
46 some point `config.cache' contains results you don't want to keep, you
47 may remove or edit it.
49 The file `configure.ac' (or `configure.in') is used to create
50 `configure' by a program called `autoconf'. You need `configure.ac' if
51 you want to change it or regenerate `configure' using a newer version
54 The simplest way to compile this package is:
56 1. `cd' to the directory containing the package's source code and type
57 `./configure' to configure the package for your system.
59 Running `configure' might take a while. While running, it prints
60 some messages telling which features it is checking for.
62 2. Type `make' to compile the package.
64 3. Optionally, type `make check' to run any self-tests that come with
67 4. Type `make install' to install the programs and any data files and
70 5. You can remove the program binaries and object files from the
71 source code directory by typing `make clean'. To also remove the
72 files that `configure' created (so you can compile the package for
73 a different kind of computer), type `make distclean'. There is
74 also a `make maintainer-clean' target, but that is intended mainly
75 for the package's developers. If you use it, you may have to get
76 all sorts of other programs in order to regenerate files that came
77 with the distribution.
82 Some systems require unusual options for compilation or linking that the
83 `configure' script does not know about. Run `./configure --help' for
84 details on some of the pertinent environment variables.
86 You can give `configure' initial values for configuration parameters
87 by setting variables in the command line or in the environment. Here
90 ./configure CC=c99 CFLAGS=-g LIBS=-lposix
92 *Note Defining Variables::, for more details.
94 Compiling For Multiple Architectures
95 ====================================
97 You can compile the package for more than one kind of computer at the
98 same time, by placing the object files for each architecture in their
99 own directory. To do this, you can use GNU `make'. `cd' to the
100 directory where you want the object files and executables to go and run
101 the `configure' script. `configure' automatically checks for the
102 source code in the directory that `configure' is in and in `..'.
104 With a non-GNU `make', it is safer to compile the package for one
105 architecture at a time in the source code directory. After you have
106 installed the package for one architecture, use `make distclean' before
107 reconfiguring for another architecture.
112 By default, `make install' installs the package's commands under
113 `/usr/local/bin', include files under `/usr/local/include', etc. You
114 can specify an installation prefix other than `/usr/local' by giving
115 `configure' the option `--prefix=PREFIX'.
117 You can specify separate installation prefixes for
118 architecture-specific files and architecture-independent files. If you
119 pass the option `--exec-prefix=PREFIX' to `configure', the package uses
120 PREFIX as the prefix for installing programs and libraries.
121 Documentation and other data files still use the regular prefix.
123 In addition, if you use an unusual directory layout you can give
124 options like `--bindir=DIR' to specify different values for particular
125 kinds of files. Run `configure --help' for a list of the directories
126 you can set and what kinds of files go in them.
128 If the package supports it, you can cause programs to be installed
129 with an extra prefix or suffix on their names by giving `configure' the
130 option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
135 Some packages pay attention to `--enable-FEATURE' options to
136 `configure', where FEATURE indicates an optional part of the package.
137 They may also pay attention to `--with-PACKAGE' options, where PACKAGE
138 is something like `gnu-as' or `x' (for the X Window System). The
139 `README' should mention any `--enable-' and `--with-' options that the
142 For packages that use the X Window System, `configure' can usually
143 find the X include and library files automatically, but if it doesn't,
144 you can use the `configure' options `--x-includes=DIR' and
145 `--x-libraries=DIR' to specify their locations.
147 Specifying the System Type
148 ==========================
150 There may be some features `configure' cannot figure out automatically,
151 but needs to determine by the type of machine the package will run on.
152 Usually, assuming the package is built to be run on the _same_
153 architectures, `configure' can figure that out, but if it prints a
154 message saying it cannot guess the machine type, give it the
155 `--build=TYPE' option. TYPE can either be a short name for the system
156 type, such as `sun4', or a canonical name which has the form:
160 where SYSTEM can have one of these forms:
164 See the file `config.sub' for the possible values of each field. If
165 `config.sub' isn't included in this package, then this package doesn't
166 need to know the machine type.
168 If you are _building_ compiler tools for cross-compiling, you should
169 use the option `--target=TYPE' to select the type of system they will
172 If you want to _use_ a cross compiler, that generates code for a
173 platform different from the build platform, you should specify the
174 "host" platform (i.e., that on which the generated programs will
175 eventually be run) with `--host=TYPE'.
180 If you want to set default values for `configure' scripts to share, you
181 can create a site shell script called `config.site' that gives default
182 values for variables like `CC', `cache_file', and `prefix'.
183 `configure' looks for `PREFIX/share/config.site' if it exists, then
184 `PREFIX/etc/config.site' if it exists. Or, you can set the
185 `CONFIG_SITE' environment variable to the location of the site script.
186 A warning: not all `configure' scripts look for a site script.
191 Variables not defined in a site shell script can be set in the
192 environment passed to `configure'. However, some packages may run
193 configure again during the build, and the customized values of these
194 variables may be lost. In order to avoid this problem, you should set
195 them in the `configure' command line, using `VAR=value'. For example:
197 ./configure CC=/usr/local2/bin/gcc
199 causes the specified `gcc' to be used as the C compiler (unless it is
200 overridden in the site shell script).
202 Unfortunately, this technique does not work for `CONFIG_SHELL' due to
203 an Autoconf bug. Until the bug is fixed you can use this workaround:
205 CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
207 `configure' Invocation
208 ======================
210 `configure' recognizes the following options to control how it operates.
214 Print a summary of the options to `configure', and exit.
218 Print the version of Autoconf used to generate the `configure'
222 Enable the cache: use and save the results of the tests in FILE,
223 traditionally `config.cache'. FILE defaults to `/dev/null' to
228 Alias for `--cache-file=config.cache'.
233 Do not print messages saying which checks are being made. To
234 suppress all normal output, redirect it to `/dev/null' (any error
235 messages will still be shown).
238 Look for the package's source code in directory DIR. Usually
239 `configure' can determine that directory automatically.
241 `configure' also accepts some other, not widely useful, options. Run
242 `configure --help' for more details.