1- Installation Instructions
2- *************************
3-
4- Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004 Free
5- Software Foundation, Inc.
6-
7- This file is free documentation; the Free Software Foundation gives
8- unlimited permission to copy, distribute and modify it.
9-
101Basic Installation
112==================
123
13- These are generic installation instructions.
4+ These are generic installation instructions.
145
156 The `configure' shell script attempts to guess correct values for
167various system-dependent variables used during compilation. It uses
178those values to create a `Makefile' in each directory of the package.
189It may also create one or more `.h' files containing system-dependent
1910definitions. Finally, it creates a shell script `config.status' that
20- you can run in the future to recreate the current configuration, and a
21- file `config.log' containing compiler output (useful mainly for
22- debugging `configure').
23-
24- It can also use an optional file (typically called `config.cache'
25- and enabled with `--cache-file=config.cache' or simply `-C') that saves
26- the results of its tests to speed up reconfiguring. (Caching is
27- disabled by default to prevent problems with accidental use of stale
28- cache files.)
11+ you can run in the future to recreate the current configuration, a file
12+ `config.cache' that saves the results of its tests to speed up
13+ reconfiguring, and a file `config.log' containing compiler output
14+ (useful mainly for debugging `configure').
2915
3016 If you need to do unusual things to compile the package, please try
3117to figure out how `configure' could check whether to do them, and mail
3218diffs or instructions to the address given in the `README' so they can
33- be considered for the next release. If you are using the cache, and at
34- some point `config.cache' contains results you don't want to keep, you
35- may remove or edit it.
19+ be considered for the next release. If at some point `config.cache'
20+ contains results you don't want to keep, you may remove or edit it.
3621
37- The file `configure.ac' (or `configure.in') is used to create
38- `configure' by a program called `autoconf'. You only need
39- `configure.ac' if you want to change it or regenerate `configure' using
40- a newer version of `autoconf'.
22+ The file `configure.in' is used to create `configure' by a program
23+ called `autoconf'. You only need `configure.in' if you want to change
24+ it or regenerate `configure' using a newer version of `autoconf'.
4125
4226The simplest way to compile this package is:
4327
@@ -70,51 +54,49 @@ The simplest way to compile this package is:
7054Compilers and Options
7155=====================
7256
73- Some systems require unusual options for compilation or linking that the
74- `configure' script does not know about. Run `./configure --help' for
75- details on some of the pertinent environment variables.
76-
77- You can give `configure' initial values for configuration parameters
78- by setting variables in the command line or in the environment. Here
79- is an example:
80-
81- ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
57+ Some systems require unusual options for compilation or linking that
58+ the `configure' script does not know about. You can give `configure'
59+ initial values for variables by setting them in the environment. Using
60+ a Bourne-compatible shell, you can do that on the command line like
61+ this:
62+ CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
8263
83- *Note Defining Variables::, for more details.
64+ Or on systems that have the `env' program, you can do it like this:
65+ env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
8466
8567Compiling For Multiple Architectures
8668====================================
8769
88- You can compile the package for more than one kind of computer at the
70+ You can compile the package for more than one kind of computer at the
8971same time, by placing the object files for each architecture in their
9072own directory. To do this, you must use a version of `make' that
9173supports the `VPATH' variable, such as GNU `make'. `cd' to the
9274directory where you want the object files and executables to go and run
9375the `configure' script. `configure' automatically checks for the
9476source code in the directory that `configure' is in and in `..'.
9577
96- If you have to use a `make' that does not support the `VPATH'
97- variable, you have to compile the package for one architecture at a
98- time in the source code directory. After you have installed the
99- package for one architecture, use `make distclean' before reconfiguring
100- for another architecture.
78+ If you have to use a `make' that does not supports the `VPATH'
79+ variable, you have to compile the package for one architecture at a time
80+ in the source code directory. After you have installed the package for
81+ one architecture, use `make distclean' before reconfiguring for another
82+ architecture.
10183
10284Installation Names
10385==================
10486
105- By default, `make install' will install the package's files in
87+ By default, `make install' will install the package's files in
10688`/usr/local/bin', `/usr/local/man', etc. You can specify an
10789installation prefix other than `/usr/local' by giving `configure' the
108- option `--prefix=PREFIX '.
90+ option `--prefix=PATH '.
10991
11092 You can specify separate installation prefixes for
11193architecture-specific files and architecture-independent files. If you
112- give `configure' the option `--exec-prefix=PREFIX ', the package will
113- use PREFIX as the prefix for installing programs and libraries.
94+ give `configure' the option `--exec-prefix=PATH ', the package will use
95+ PATH as the prefix for installing programs and libraries.
11496Documentation and other data files will still use the regular prefix.
11597
11698 In addition, if you use an unusual directory layout you can give
117- options like `--bindir=DIR ' to specify different values for particular
99+ options like `--bindir=PATH ' to specify different values for particular
118100kinds of files. Run `configure --help' for a list of the directories
119101you can set and what kinds of files go in them.
120102
@@ -125,7 +107,7 @@ option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
125107Optional Features
126108=================
127109
128- Some packages pay attention to `--enable-FEATURE' options to
110+ Some packages pay attention to `--enable-FEATURE' options to
129111`configure', where FEATURE indicates an optional part of the package.
130112They may also pay attention to `--with-PACKAGE' options, where PACKAGE
131113is something like `gnu-as' or `x' (for the X Window System). The
@@ -140,81 +122,48 @@ you can use the `configure' options `--x-includes=DIR' and
140122Specifying the System Type
141123==========================
142124
143- There may be some features `configure' cannot figure out automatically,
144- but needs to determine by the type of machine the package will run on.
145- Usually, assuming the package is built to be run on the _same_
146- architectures, `configure' can figure that out, but if it prints a
147- message saying it cannot guess the machine type, give it the
148- `--build=TYPE' option. TYPE can either be a short name for the system
149- type, such as `sun4', or a canonical name which has the form:
150-
125+ There may be some features `configure' can not figure out
126+ automatically, but needs to determine by the type of host the package
127+ will run on. Usually `configure' can figure that out, but if it prints
128+ a message saying it can not guess the host type, give it the
129+ `--host=TYPE' option. TYPE can either be a short name for the system
130+ type, such as `sun4', or a canonical name with three fields:
151131 CPU-COMPANY-SYSTEM
152132
153- where SYSTEM can have one of these forms:
154-
155- OS KERNEL-OS
156-
157- See the file `config.sub' for the possible values of each field. If
133+ See the file `config.sub' for the possible values of each field. If
158134`config.sub' isn't included in this package, then this package doesn't
159- need to know the machine type.
135+ need to know the host type.
160136
161- If you are _building_ compiler tools for cross-compiling, you should
137+ If you are building compiler tools for cross-compiling, you can also
162138use the `--target=TYPE' option to select the type of system they will
163- produce code for.
164-
165- If you want to _use_ a cross compiler, that generates code for a
166- platform different from the build platform, you should specify the
167- "host" platform (i.e., that on which the generated programs will
168- eventually be run) with `--host=TYPE'.
139+ produce code for and the `--build=TYPE' option to select the type of
140+ system on which you are compiling the package.
169141
170142Sharing Defaults
171143================
172144
173- If you want to set default values for `configure' scripts to share, you
174- can create a site shell script called `config.site' that gives default
175- values for variables like `CC', `cache_file', and `prefix'.
145+ If you want to set default values for `configure' scripts to share,
146+ you can create a site shell script called `config.site' that gives
147+ default values for variables like `CC', `cache_file', and `prefix'.
176148`configure' looks for `PREFIX/share/config.site' if it exists, then
177149`PREFIX/etc/config.site' if it exists. Or, you can set the
178150`CONFIG_SITE' environment variable to the location of the site script.
179151A warning: not all `configure' scripts look for a site script.
180152
181- Defining Variables
153+ Operation Controls
182154==================
183155
184- Variables not defined in a site shell script can be set in the
185- environment passed to `configure'. However, some packages may run
186- configure again during the build, and the customized values of these
187- variables may be lost. In order to avoid this problem, you should set
188- them in the `configure' command line, using `VAR=value'. For example:
189-
190- ./configure CC=/usr/local2/bin/gcc
191-
192- will cause the specified gcc to be used as the C compiler (unless it is
193- overridden in the site shell script).
156+ `configure' recognizes the following options to control how it
157+ operates.
194158
195- `configure' Invocation
196- ======================
197-
198- `configure' recognizes the following options to control how it operates .
159+ `--cache-file=FILE'
160+ Use and save the results of the tests in FILE instead of
161+ `./config.cache'. Set FILE to `/dev/null' to disable caching, for
162+ debugging `configure' .
199163
200164`--help'
201- `-h'
202165 Print a summary of the options to `configure', and exit.
203166
204- `--version'
205- `-V'
206- Print the version of Autoconf used to generate the `configure'
207- script, and exit.
208-
209- `--cache-file=FILE'
210- Enable the cache: use and save the results of the tests in FILE,
211- traditionally `config.cache'. FILE defaults to `/dev/null' to
212- disable caching.
213-
214- `--config-cache'
215- `-C'
216- Alias for `--cache-file=config.cache'.
217-
218167`--quiet'
219168`--silent'
220169`-q'
@@ -226,6 +175,8 @@ overridden in the site shell script).
226175 Look for the package's source code in directory DIR. Usually
227176 `configure' can determine that directory automatically.
228177
229- `configure' also accepts some other, not widely useful, options. Run
230- `configure --help' for more details.
178+ `--version'
179+ Print the version of Autoconf used to generate the `configure'
180+ script, and exit.
231181
182+ `configure' also accepts some other, not widely useful, options.
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