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1 | Installation Instructions |
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2 | ************************* |
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3 | |
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4 | Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004 Free |
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5 | Software Foundation, Inc. |
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6 | |
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7 | This file is free documentation; the Free Software Foundation gives |
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8 | unlimited permission to copy, distribute and modify it. |
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9 | |
| 1 | Basic Installation |
10 | Basic Installation |
| 2 | ================== |
11 | ================== |
| 3 | |
12 | |
| 4 | These are generic installation instructions. |
13 | These are generic installation instructions. |
| 5 | |
14 | |
| 6 | The `configure' shell script attempts to guess correct values for |
15 | The `configure' shell script attempts to guess correct values for |
| 7 | various system-dependent variables used during compilation. It uses |
16 | various system-dependent variables used during compilation. It uses |
| 8 | those values to create a `Makefile' in each directory of the package. |
17 | those values to create a `Makefile' in each directory of the package. |
| 9 | It may also create one or more `.h' files containing system-dependent |
18 | It may also create one or more `.h' files containing system-dependent |
| 10 | definitions. Finally, it creates a shell script `config.status' that |
19 | definitions. Finally, it creates a shell script `config.status' that |
| 11 | you can run in the future to recreate the current configuration, a file |
20 | you can run in the future to recreate the current configuration, and a |
| 12 | `config.cache' that saves the results of its tests to speed up |
21 | file `config.log' containing compiler output (useful mainly for |
| 13 | reconfiguring, and a file `config.log' containing compiler output |
22 | debugging `configure'). |
| 14 | (useful mainly for debugging `configure'). |
23 | |
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24 | It can also use an optional file (typically called `config.cache' |
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25 | and enabled with `--cache-file=config.cache' or simply `-C') that saves |
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26 | the results of its tests to speed up reconfiguring. (Caching is |
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27 | disabled by default to prevent problems with accidental use of stale |
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28 | cache files.) |
| 15 | |
29 | |
| 16 | If you need to do unusual things to compile the package, please try |
30 | If you need to do unusual things to compile the package, please try |
| 17 | to figure out how `configure' could check whether to do them, and mail |
31 | to figure out how `configure' could check whether to do them, and mail |
| 18 | diffs or instructions to the address given in the `README' so they can |
32 | diffs or instructions to the address given in the `README' so they can |
| 19 | be considered for the next release. If at some point `config.cache' |
33 | be considered for the next release. If you are using the cache, and at |
| 20 | contains results you don't want to keep, you may remove or edit it. |
34 | some point `config.cache' contains results you don't want to keep, you |
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35 | may remove or edit it. |
| 21 | |
36 | |
| 22 | The file `configure.in' is used to create `configure' by a program |
37 | The file `configure.ac' (or `configure.in') is used to create |
| 23 | called `autoconf'. You only need `configure.in' if you want to change |
38 | `configure' by a program called `autoconf'. You only need |
| 24 | it or regenerate `configure' using a newer version of `autoconf'. |
39 | `configure.ac' if you want to change it or regenerate `configure' using |
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40 | a newer version of `autoconf'. |
| 25 | |
41 | |
| 26 | The simplest way to compile this package is: |
42 | The simplest way to compile this package is: |
| 27 | |
43 | |
| 28 | 1. `cd' to the directory containing the package's source code and type |
44 | 1. `cd' to the directory containing the package's source code and type |
| 29 | `./configure' to configure the package for your system. If you're |
45 | `./configure' to configure the package for your system. If you're |
| … | |
… | |
| 52 | with the distribution. |
68 | with the distribution. |
| 53 | |
69 | |
| 54 | Compilers and Options |
70 | Compilers and Options |
| 55 | ===================== |
71 | ===================== |
| 56 | |
72 | |
| 57 | Some systems require unusual options for compilation or linking that |
73 | Some systems require unusual options for compilation or linking that the |
| 58 | the `configure' script does not know about. You can give `configure' |
74 | `configure' script does not know about. Run `./configure --help' for |
| 59 | initial values for variables by setting them in the environment. Using |
75 | details on some of the pertinent environment variables. |
| 60 | a Bourne-compatible shell, you can do that on the command line like |
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| 61 | this: |
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| 62 | CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure |
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| 63 | |
76 | |
| 64 | Or on systems that have the `env' program, you can do it like this: |
77 | You can give `configure' initial values for configuration parameters |
| 65 | env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure |
78 | by setting variables in the command line or in the environment. Here |
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79 | is an example: |
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80 | |
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81 | ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix |
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82 | |
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83 | *Note Defining Variables::, for more details. |
| 66 | |
84 | |
| 67 | Compiling For Multiple Architectures |
85 | Compiling For Multiple Architectures |
| 68 | ==================================== |
86 | ==================================== |
| 69 | |
87 | |
| 70 | You can compile the package for more than one kind of computer at the |
88 | You can compile the package for more than one kind of computer at the |
| 71 | same time, by placing the object files for each architecture in their |
89 | same time, by placing the object files for each architecture in their |
| 72 | own directory. To do this, you must use a version of `make' that |
90 | own directory. To do this, you must use a version of `make' that |
| 73 | supports the `VPATH' variable, such as GNU `make'. `cd' to the |
91 | supports the `VPATH' variable, such as GNU `make'. `cd' to the |
| 74 | directory where you want the object files and executables to go and run |
92 | directory where you want the object files and executables to go and run |
| 75 | the `configure' script. `configure' automatically checks for the |
93 | the `configure' script. `configure' automatically checks for the |
| 76 | source code in the directory that `configure' is in and in `..'. |
94 | source code in the directory that `configure' is in and in `..'. |
| 77 | |
95 | |
| 78 | If you have to use a `make' that does not supports the `VPATH' |
96 | If you have to use a `make' that does not support the `VPATH' |
| 79 | variable, you have to compile the package for one architecture at a time |
97 | variable, you have to compile the package for one architecture at a |
| 80 | in the source code directory. After you have installed the package for |
98 | time in the source code directory. After you have installed the |
| 81 | one architecture, use `make distclean' before reconfiguring for another |
99 | package for one architecture, use `make distclean' before reconfiguring |
| 82 | architecture. |
100 | for another architecture. |
| 83 | |
101 | |
| 84 | Installation Names |
102 | Installation Names |
| 85 | ================== |
103 | ================== |
| 86 | |
104 | |
| 87 | By default, `make install' will install the package's files in |
105 | By default, `make install' will install the package's files in |
| 88 | `/usr/local/bin', `/usr/local/man', etc. You can specify an |
106 | `/usr/local/bin', `/usr/local/man', etc. You can specify an |
| 89 | installation prefix other than `/usr/local' by giving `configure' the |
107 | installation prefix other than `/usr/local' by giving `configure' the |
| 90 | option `--prefix=PATH'. |
108 | option `--prefix=PREFIX'. |
| 91 | |
109 | |
| 92 | You can specify separate installation prefixes for |
110 | You can specify separate installation prefixes for |
| 93 | architecture-specific files and architecture-independent files. If you |
111 | architecture-specific files and architecture-independent files. If you |
| 94 | give `configure' the option `--exec-prefix=PATH', the package will use |
112 | give `configure' the option `--exec-prefix=PREFIX', the package will |
| 95 | PATH as the prefix for installing programs and libraries. |
113 | use PREFIX as the prefix for installing programs and libraries. |
| 96 | Documentation and other data files will still use the regular prefix. |
114 | Documentation and other data files will still use the regular prefix. |
| 97 | |
115 | |
| 98 | In addition, if you use an unusual directory layout you can give |
116 | In addition, if you use an unusual directory layout you can give |
| 99 | options like `--bindir=PATH' to specify different values for particular |
117 | options like `--bindir=DIR' to specify different values for particular |
| 100 | kinds of files. Run `configure --help' for a list of the directories |
118 | kinds of files. Run `configure --help' for a list of the directories |
| 101 | you can set and what kinds of files go in them. |
119 | you can set and what kinds of files go in them. |
| 102 | |
120 | |
| 103 | If the package supports it, you can cause programs to be installed |
121 | If the package supports it, you can cause programs to be installed |
| 104 | with an extra prefix or suffix on their names by giving `configure' the |
122 | with an extra prefix or suffix on their names by giving `configure' the |
| 105 | option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. |
123 | option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. |
| 106 | |
124 | |
| 107 | Optional Features |
125 | Optional Features |
| 108 | ================= |
126 | ================= |
| 109 | |
127 | |
| 110 | Some packages pay attention to `--enable-FEATURE' options to |
128 | Some packages pay attention to `--enable-FEATURE' options to |
| 111 | `configure', where FEATURE indicates an optional part of the package. |
129 | `configure', where FEATURE indicates an optional part of the package. |
| 112 | They may also pay attention to `--with-PACKAGE' options, where PACKAGE |
130 | They may also pay attention to `--with-PACKAGE' options, where PACKAGE |
| 113 | is something like `gnu-as' or `x' (for the X Window System). The |
131 | is something like `gnu-as' or `x' (for the X Window System). The |
| 114 | `README' should mention any `--enable-' and `--with-' options that the |
132 | `README' should mention any `--enable-' and `--with-' options that the |
| 115 | package recognizes. |
133 | package recognizes. |
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| 120 | `--x-libraries=DIR' to specify their locations. |
138 | `--x-libraries=DIR' to specify their locations. |
| 121 | |
139 | |
| 122 | Specifying the System Type |
140 | Specifying the System Type |
| 123 | ========================== |
141 | ========================== |
| 124 | |
142 | |
| 125 | There may be some features `configure' can not figure out |
143 | There may be some features `configure' cannot figure out automatically, |
| 126 | automatically, but needs to determine by the type of host the package |
144 | but needs to determine by the type of machine the package will run on. |
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145 | Usually, assuming the package is built to be run on the _same_ |
| 127 | will run on. Usually `configure' can figure that out, but if it prints |
146 | architectures, `configure' can figure that out, but if it prints a |
| 128 | a message saying it can not guess the host type, give it the |
147 | message saying it cannot guess the machine type, give it the |
| 129 | `--host=TYPE' option. TYPE can either be a short name for the system |
148 | `--build=TYPE' option. TYPE can either be a short name for the system |
| 130 | type, such as `sun4', or a canonical name with three fields: |
149 | type, such as `sun4', or a canonical name which has the form: |
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150 | |
| 131 | CPU-COMPANY-SYSTEM |
151 | CPU-COMPANY-SYSTEM |
| 132 | |
152 | |
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153 | where SYSTEM can have one of these forms: |
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154 | |
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155 | OS KERNEL-OS |
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156 | |
| 133 | See the file `config.sub' for the possible values of each field. If |
157 | See the file `config.sub' for the possible values of each field. If |
| 134 | `config.sub' isn't included in this package, then this package doesn't |
158 | `config.sub' isn't included in this package, then this package doesn't |
| 135 | need to know the host type. |
159 | need to know the machine type. |
| 136 | |
160 | |
| 137 | If you are building compiler tools for cross-compiling, you can also |
161 | If you are _building_ compiler tools for cross-compiling, you should |
| 138 | use the `--target=TYPE' option to select the type of system they will |
162 | use the `--target=TYPE' option to select the type of system they will |
| 139 | produce code for and the `--build=TYPE' option to select the type of |
163 | produce code for. |
| 140 | system on which you are compiling the package. |
164 | |
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165 | If you want to _use_ a cross compiler, that generates code for a |
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166 | platform different from the build platform, you should specify the |
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167 | "host" platform (i.e., that on which the generated programs will |
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168 | eventually be run) with `--host=TYPE'. |
| 141 | |
169 | |
| 142 | Sharing Defaults |
170 | Sharing Defaults |
| 143 | ================ |
171 | ================ |
| 144 | |
172 | |
| 145 | If you want to set default values for `configure' scripts to share, |
173 | If you want to set default values for `configure' scripts to share, you |
| 146 | you can create a site shell script called `config.site' that gives |
174 | can create a site shell script called `config.site' that gives default |
| 147 | default values for variables like `CC', `cache_file', and `prefix'. |
175 | values for variables like `CC', `cache_file', and `prefix'. |
| 148 | `configure' looks for `PREFIX/share/config.site' if it exists, then |
176 | `configure' looks for `PREFIX/share/config.site' if it exists, then |
| 149 | `PREFIX/etc/config.site' if it exists. Or, you can set the |
177 | `PREFIX/etc/config.site' if it exists. Or, you can set the |
| 150 | `CONFIG_SITE' environment variable to the location of the site script. |
178 | `CONFIG_SITE' environment variable to the location of the site script. |
| 151 | A warning: not all `configure' scripts look for a site script. |
179 | A warning: not all `configure' scripts look for a site script. |
| 152 | |
180 | |
| 153 | Operation Controls |
181 | Defining Variables |
| 154 | ================== |
182 | ================== |
| 155 | |
183 | |
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184 | Variables not defined in a site shell script can be set in the |
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185 | environment passed to `configure'. However, some packages may run |
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186 | configure again during the build, and the customized values of these |
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187 | variables may be lost. In order to avoid this problem, you should set |
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188 | them in the `configure' command line, using `VAR=value'. For example: |
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189 | |
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190 | ./configure CC=/usr/local2/bin/gcc |
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191 | |
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192 | will cause the specified gcc to be used as the C compiler (unless it is |
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193 | overridden in the site shell script). |
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194 | |
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195 | `configure' Invocation |
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196 | ====================== |
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197 | |
| 156 | `configure' recognizes the following options to control how it |
198 | `configure' recognizes the following options to control how it operates. |
| 157 | operates. |
199 | |
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200 | `--help' |
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201 | `-h' |
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202 | Print a summary of the options to `configure', and exit. |
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203 | |
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204 | `--version' |
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205 | `-V' |
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206 | Print the version of Autoconf used to generate the `configure' |
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207 | script, and exit. |
| 158 | |
208 | |
| 159 | `--cache-file=FILE' |
209 | `--cache-file=FILE' |
| 160 | Use and save the results of the tests in FILE instead of |
210 | Enable the cache: use and save the results of the tests in FILE, |
| 161 | `./config.cache'. Set FILE to `/dev/null' to disable caching, for |
211 | traditionally `config.cache'. FILE defaults to `/dev/null' to |
| 162 | debugging `configure'. |
212 | disable caching. |
| 163 | |
213 | |
| 164 | `--help' |
214 | `--config-cache' |
| 165 | Print a summary of the options to `configure', and exit. |
215 | `-C' |
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216 | Alias for `--cache-file=config.cache'. |
| 166 | |
217 | |
| 167 | `--quiet' |
218 | `--quiet' |
| 168 | `--silent' |
219 | `--silent' |
| 169 | `-q' |
220 | `-q' |
| 170 | Do not print messages saying which checks are being made. To |
221 | Do not print messages saying which checks are being made. To |
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| 173 | |
224 | |
| 174 | `--srcdir=DIR' |
225 | `--srcdir=DIR' |
| 175 | Look for the package's source code in directory DIR. Usually |
226 | Look for the package's source code in directory DIR. Usually |
| 176 | `configure' can determine that directory automatically. |
227 | `configure' can determine that directory automatically. |
| 177 | |
228 | |
| 178 | `--version' |
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| 179 | Print the version of Autoconf used to generate the `configure' |
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| 180 | script, and exit. |
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| 181 | |
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| 182 | `configure' also accepts some other, not widely useful, options. |
229 | `configure' also accepts some other, not widely useful, options. Run |
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230 | `configure --help' for more details. |
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231 | |
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