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1.3 @@ -0,0 +1,234 @@
1.4 +Installation Instructions
1.5 +*************************
1.6 +
1.7 +Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
1.8 +2006 Free Software Foundation, Inc.
1.9 +
1.10 +This file is free documentation; the Free Software Foundation gives
1.11 +unlimited permission to copy, distribute and modify it.
1.12 +
1.13 +Basic Installation
1.14 +==================
1.15 +
1.16 +Briefly, the shell commands `./configure; make; make install' should
1.17 +configure, build, and install this package. The following
1.18 +more-detailed instructions are generic; see the `README' file for
1.19 +instructions specific to this package.
1.20 +
1.21 + The `configure' shell script attempts to guess correct values for
1.22 +various system-dependent variables used during compilation. It uses
1.23 +those values to create a `Makefile' in each directory of the package.
1.24 +It may also create one or more `.h' files containing system-dependent
1.25 +definitions. Finally, it creates a shell script `config.status' that
1.26 +you can run in the future to recreate the current configuration, and a
1.27 +file `config.log' containing compiler output (useful mainly for
1.28 +debugging `configure').
1.29 +
1.30 + It can also use an optional file (typically called `config.cache'
1.31 +and enabled with `--cache-file=config.cache' or simply `-C') that saves
1.32 +the results of its tests to speed up reconfiguring. Caching is
1.33 +disabled by default to prevent problems with accidental use of stale
1.34 +cache files.
1.35 +
1.36 + If you need to do unusual things to compile the package, please try
1.37 +to figure out how `configure' could check whether to do them, and mail
1.38 +diffs or instructions to the address given in the `README' so they can
1.39 +be considered for the next release. If you are using the cache, and at
1.40 +some point `config.cache' contains results you don't want to keep, you
1.41 +may remove or edit it.
1.42 +
1.43 + The file `configure.ac' (or `configure.in') is used to create
1.44 +`configure' by a program called `autoconf'. You need `configure.ac' if
1.45 +you want to change it or regenerate `configure' using a newer version
1.46 +of `autoconf'.
1.47 +
1.48 +The simplest way to compile this package is:
1.49 +
1.50 + 1. `cd' to the directory containing the package's source code and type
1.51 + `./configure' to configure the package for your system.
1.52 +
1.53 + Running `configure' might take a while. While running, it prints
1.54 + some messages telling which features it is checking for.
1.55 +
1.56 + 2. Type `make' to compile the package.
1.57 +
1.58 + 3. Optionally, type `make check' to run any self-tests that come with
1.59 + the package.
1.60 +
1.61 + 4. Type `make install' to install the programs and any data files and
1.62 + documentation.
1.63 +
1.64 + 5. You can remove the program binaries and object files from the
1.65 + source code directory by typing `make clean'. To also remove the
1.66 + files that `configure' created (so you can compile the package for
1.67 + a different kind of computer), type `make distclean'. There is
1.68 + also a `make maintainer-clean' target, but that is intended mainly
1.69 + for the package's developers. If you use it, you may have to get
1.70 + all sorts of other programs in order to regenerate files that came
1.71 + with the distribution.
1.72 +
1.73 +Compilers and Options
1.74 +=====================
1.75 +
1.76 +Some systems require unusual options for compilation or linking that the
1.77 +`configure' script does not know about. Run `./configure --help' for
1.78 +details on some of the pertinent environment variables.
1.79 +
1.80 + You can give `configure' initial values for configuration parameters
1.81 +by setting variables in the command line or in the environment. Here
1.82 +is an example:
1.83 +
1.84 + ./configure CC=c99 CFLAGS=-g LIBS=-lposix
1.85 +
1.86 + *Note Defining Variables::, for more details.
1.87 +
1.88 +Compiling For Multiple Architectures
1.89 +====================================
1.90 +
1.91 +You can compile the package for more than one kind of computer at the
1.92 +same time, by placing the object files for each architecture in their
1.93 +own directory. To do this, you can use GNU `make'. `cd' to the
1.94 +directory where you want the object files and executables to go and run
1.95 +the `configure' script. `configure' automatically checks for the
1.96 +source code in the directory that `configure' is in and in `..'.
1.97 +
1.98 + With a non-GNU `make', it is safer to compile the package for one
1.99 +architecture at a time in the source code directory. After you have
1.100 +installed the package for one architecture, use `make distclean' before
1.101 +reconfiguring for another architecture.
1.102 +
1.103 +Installation Names
1.104 +==================
1.105 +
1.106 +By default, `make install' installs the package's commands under
1.107 +`/usr/local/bin', include files under `/usr/local/include', etc. You
1.108 +can specify an installation prefix other than `/usr/local' by giving
1.109 +`configure' the option `--prefix=PREFIX'.
1.110 +
1.111 + You can specify separate installation prefixes for
1.112 +architecture-specific files and architecture-independent files. If you
1.113 +pass the option `--exec-prefix=PREFIX' to `configure', the package uses
1.114 +PREFIX as the prefix for installing programs and libraries.
1.115 +Documentation and other data files still use the regular prefix.
1.116 +
1.117 + In addition, if you use an unusual directory layout you can give
1.118 +options like `--bindir=DIR' to specify different values for particular
1.119 +kinds of files. Run `configure --help' for a list of the directories
1.120 +you can set and what kinds of files go in them.
1.121 +
1.122 + If the package supports it, you can cause programs to be installed
1.123 +with an extra prefix or suffix on their names by giving `configure' the
1.124 +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
1.125 +
1.126 +Optional Features
1.127 +=================
1.128 +
1.129 +Some packages pay attention to `--enable-FEATURE' options to
1.130 +`configure', where FEATURE indicates an optional part of the package.
1.131 +They may also pay attention to `--with-PACKAGE' options, where PACKAGE
1.132 +is something like `gnu-as' or `x' (for the X Window System). The
1.133 +`README' should mention any `--enable-' and `--with-' options that the
1.134 +package recognizes.
1.135 +
1.136 + For packages that use the X Window System, `configure' can usually
1.137 +find the X include and library files automatically, but if it doesn't,
1.138 +you can use the `configure' options `--x-includes=DIR' and
1.139 +`--x-libraries=DIR' to specify their locations.
1.140 +
1.141 +Specifying the System Type
1.142 +==========================
1.143 +
1.144 +There may be some features `configure' cannot figure out automatically,
1.145 +but needs to determine by the type of machine the package will run on.
1.146 +Usually, assuming the package is built to be run on the _same_
1.147 +architectures, `configure' can figure that out, but if it prints a
1.148 +message saying it cannot guess the machine type, give it the
1.149 +`--build=TYPE' option. TYPE can either be a short name for the system
1.150 +type, such as `sun4', or a canonical name which has the form:
1.151 +
1.152 + CPU-COMPANY-SYSTEM
1.153 +
1.154 +where SYSTEM can have one of these forms:
1.155 +
1.156 + OS KERNEL-OS
1.157 +
1.158 + See the file `config.sub' for the possible values of each field. If
1.159 +`config.sub' isn't included in this package, then this package doesn't
1.160 +need to know the machine type.
1.161 +
1.162 + If you are _building_ compiler tools for cross-compiling, you should
1.163 +use the option `--target=TYPE' to select the type of system they will
1.164 +produce code for.
1.165 +
1.166 + If you want to _use_ a cross compiler, that generates code for a
1.167 +platform different from the build platform, you should specify the
1.168 +"host" platform (i.e., that on which the generated programs will
1.169 +eventually be run) with `--host=TYPE'.
1.170 +
1.171 +Sharing Defaults
1.172 +================
1.173 +
1.174 +If you want to set default values for `configure' scripts to share, you
1.175 +can create a site shell script called `config.site' that gives default
1.176 +values for variables like `CC', `cache_file', and `prefix'.
1.177 +`configure' looks for `PREFIX/share/config.site' if it exists, then
1.178 +`PREFIX/etc/config.site' if it exists. Or, you can set the
1.179 +`CONFIG_SITE' environment variable to the location of the site script.
1.180 +A warning: not all `configure' scripts look for a site script.
1.181 +
1.182 +Defining Variables
1.183 +==================
1.184 +
1.185 +Variables not defined in a site shell script can be set in the
1.186 +environment passed to `configure'. However, some packages may run
1.187 +configure again during the build, and the customized values of these
1.188 +variables may be lost. In order to avoid this problem, you should set
1.189 +them in the `configure' command line, using `VAR=value'. For example:
1.190 +
1.191 + ./configure CC=/usr/local2/bin/gcc
1.192 +
1.193 +causes the specified `gcc' to be used as the C compiler (unless it is
1.194 +overridden in the site shell script).
1.195 +
1.196 +Unfortunately, this technique does not work for `CONFIG_SHELL' due to
1.197 +an Autoconf bug. Until the bug is fixed you can use this workaround:
1.198 +
1.199 + CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
1.200 +
1.201 +`configure' Invocation
1.202 +======================
1.203 +
1.204 +`configure' recognizes the following options to control how it operates.
1.205 +
1.206 +`--help'
1.207 +`-h'
1.208 + Print a summary of the options to `configure', and exit.
1.209 +
1.210 +`--version'
1.211 +`-V'
1.212 + Print the version of Autoconf used to generate the `configure'
1.213 + script, and exit.
1.214 +
1.215 +`--cache-file=FILE'
1.216 + Enable the cache: use and save the results of the tests in FILE,
1.217 + traditionally `config.cache'. FILE defaults to `/dev/null' to
1.218 + disable caching.
1.219 +
1.220 +`--config-cache'
1.221 +`-C'
1.222 + Alias for `--cache-file=config.cache'.
1.223 +
1.224 +`--quiet'
1.225 +`--silent'
1.226 +`-q'
1.227 + Do not print messages saying which checks are being made. To
1.228 + suppress all normal output, redirect it to `/dev/null' (any error
1.229 + messages will still be shown).
1.230 +
1.231 +`--srcdir=DIR'
1.232 + Look for the package's source code in directory DIR. Usually
1.233 + `configure' can determine that directory automatically.
1.234 +
1.235 +`configure' also accepts some other, not widely useful, options. Run
1.236 +`configure --help' for more details.
1.237 +