OLD | NEW |
| (Empty) |
1 Installation Instructions | |
2 ************************* | |
3 | |
4 Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, | |
5 2006, 2007, 2008 Free 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 | |
10 Basic Installation | |
11 ================== | |
12 | |
13 Briefly, the shell commands `./configure; make; make install' should | |
14 configure, build, and install this package. The following | |
15 more-detailed instructions are generic; see the `README' file for | |
16 instructions specific to this package. | |
17 | |
18 The `configure' shell script attempts to guess correct values for | |
19 various system-dependent variables used during compilation. It uses | |
20 those values to create a `Makefile' in each directory of the package. | |
21 It may also create one or more `.h' files containing system-dependent | |
22 definitions. Finally, it creates a shell script `config.status' that | |
23 you can run in the future to recreate the current configuration, and a | |
24 file `config.log' containing compiler output (useful mainly for | |
25 debugging `configure'). | |
26 | |
27 It can also use an optional file (typically called `config.cache' | |
28 and enabled with `--cache-file=config.cache' or simply `-C') that saves | |
29 the results of its tests to speed up reconfiguring. Caching is | |
30 disabled by default to prevent problems with accidental use of stale | |
31 cache files. | |
32 | |
33 If you need to do unusual things to compile the package, please try | |
34 to figure out how `configure' could check whether to do them, and mail | |
35 diffs or instructions to the address given in the `README' so they can | |
36 be considered for the next release. If you are using the cache, and at | |
37 some point `config.cache' contains results you don't want to keep, you | |
38 may remove or edit it. | |
39 | |
40 The file `configure.ac' (or `configure.in') is used to create | |
41 `configure' by a program called `autoconf'. You need `configure.ac' if | |
42 you want to change it or regenerate `configure' using a newer version | |
43 of `autoconf'. | |
44 | |
45 The simplest way to compile this package is: | |
46 | |
47 1. `cd' to the directory containing the package's source code and type | |
48 `./configure' to configure the package for your system. | |
49 | |
50 Running `configure' might take a while. While running, it prints | |
51 some messages telling which features it is checking for. | |
52 | |
53 2. Type `make' to compile the package. | |
54 | |
55 3. Optionally, type `make check' to run any self-tests that come with | |
56 the package. | |
57 | |
58 4. Type `make install' to install the programs and any data files and | |
59 documentation. | |
60 | |
61 5. You can remove the program binaries and object files from the | |
62 source code directory by typing `make clean'. To also remove the | |
63 files that `configure' created (so you can compile the package for | |
64 a different kind of computer), type `make distclean'. There is | |
65 also a `make maintainer-clean' target, but that is intended mainly | |
66 for the package's developers. If you use it, you may have to get | |
67 all sorts of other programs in order to regenerate files that came | |
68 with the distribution. | |
69 | |
70 6. Often, you can also type `make uninstall' to remove the installed | |
71 files again. | |
72 | |
73 Compilers and Options | |
74 ===================== | |
75 | |
76 Some systems require unusual options for compilation or linking that | |
77 the `configure' script does not know about. Run `./configure --help' | |
78 for details on some of the pertinent environment variables. | |
79 | |
80 You can give `configure' initial values for configuration parameters | |
81 by setting variables in the command line or in the environment. Here | |
82 is an example: | |
83 | |
84 ./configure CC=c99 CFLAGS=-g LIBS=-lposix | |
85 | |
86 *Note Defining Variables::, for more details. | |
87 | |
88 Compiling For Multiple Architectures | |
89 ==================================== | |
90 | |
91 You can compile the package for more than one kind of computer at the | |
92 same time, by placing the object files for each architecture in their | |
93 own directory. To do this, you can use GNU `make'. `cd' to the | |
94 directory where you want the object files and executables to go and run | |
95 the `configure' script. `configure' automatically checks for the | |
96 source code in the directory that `configure' is in and in `..'. | |
97 | |
98 With a non-GNU `make', it is safer to compile the package for one | |
99 architecture at a time in the source code directory. After you have | |
100 installed the package for one architecture, use `make distclean' before | |
101 reconfiguring for another architecture. | |
102 | |
103 On MacOS X 10.5 and later systems, you can create libraries and | |
104 executables that work on multiple system types--known as "fat" or | |
105 "universal" binaries--by specifying multiple `-arch' options to the | |
106 compiler but only a single `-arch' option to the preprocessor. Like | |
107 this: | |
108 | |
109 ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ | |
110 CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ | |
111 CPP="gcc -E" CXXCPP="g++ -E" | |
112 | |
113 This is not guaranteed to produce working output in all cases, you | |
114 may have to build one architecture at a time and combine the results | |
115 using the `lipo' tool if you have problems. | |
116 | |
117 Installation Names | |
118 ================== | |
119 | |
120 By default, `make install' installs the package's commands under | |
121 `/usr/local/bin', include files under `/usr/local/include', etc. You | |
122 can specify an installation prefix other than `/usr/local' by giving | |
123 `configure' the option `--prefix=PREFIX'. | |
124 | |
125 You can specify separate installation prefixes for | |
126 architecture-specific files and architecture-independent files. If you | |
127 pass the option `--exec-prefix=PREFIX' to `configure', the package uses | |
128 PREFIX as the prefix for installing programs and libraries. | |
129 Documentation and other data files still use the regular prefix. | |
130 | |
131 In addition, if you use an unusual directory layout you can give | |
132 options like `--bindir=DIR' to specify different values for particular | |
133 kinds of files. Run `configure --help' for a list of the directories | |
134 you can set and what kinds of files go in them. | |
135 | |
136 If the package supports it, you can cause programs to be installed | |
137 with an extra prefix or suffix on their names by giving `configure' the | |
138 option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. | |
139 | |
140 Optional Features | |
141 ================= | |
142 | |
143 Some packages pay attention to `--enable-FEATURE' options to | |
144 `configure', where FEATURE indicates an optional part of the package. | |
145 They may also pay attention to `--with-PACKAGE' options, where PACKAGE | |
146 is something like `gnu-as' or `x' (for the X Window System). The | |
147 `README' should mention any `--enable-' and `--with-' options that the | |
148 package recognizes. | |
149 | |
150 For packages that use the X Window System, `configure' can usually | |
151 find the X include and library files automatically, but if it doesn't, | |
152 you can use the `configure' options `--x-includes=DIR' and | |
153 `--x-libraries=DIR' to specify their locations. | |
154 | |
155 Particular systems | |
156 ================== | |
157 | |
158 On HP-UX, the default C compiler is not ANSI C compatible. If GNU | |
159 CC is not installed, it is recommended to use the following options in | |
160 order to use an ANSI C compiler: | |
161 | |
162 ./configure CC="cc -Ae" | |
163 | |
164 and if that doesn't work, install pre-built binaries of GCC for HP-UX. | |
165 | |
166 On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot | |
167 parse its `<wchar.h>' header file. The option `-nodtk' can be used as | |
168 a workaround. If GNU CC is not installed, it is therefore recommended | |
169 to try | |
170 | |
171 ./configure CC="cc" | |
172 | |
173 and if that doesn't work, try | |
174 | |
175 ./configure CC="cc -nodtk" | |
176 | |
177 Specifying the System Type | |
178 ========================== | |
179 | |
180 There may be some features `configure' cannot figure out | |
181 automatically, but needs to determine by the type of machine the package | |
182 will run on. Usually, assuming the package is built to be run on the | |
183 _same_ architectures, `configure' can figure that out, but if it prints | |
184 a message saying it cannot guess the machine type, give it the | |
185 `--build=TYPE' option. TYPE can either be a short name for the system | |
186 type, such as `sun4', or a canonical name which has the form: | |
187 | |
188 CPU-COMPANY-SYSTEM | |
189 | |
190 where SYSTEM can have one of these forms: | |
191 | |
192 OS KERNEL-OS | |
193 | |
194 See the file `config.sub' for the possible values of each field. If | |
195 `config.sub' isn't included in this package, then this package doesn't | |
196 need to know the machine type. | |
197 | |
198 If you are _building_ compiler tools for cross-compiling, you should | |
199 use the option `--target=TYPE' to select the type of system they will | |
200 produce code for. | |
201 | |
202 If you want to _use_ a cross compiler, that generates code for a | |
203 platform different from the build platform, you should specify the | |
204 "host" platform (i.e., that on which the generated programs will | |
205 eventually be run) with `--host=TYPE'. | |
206 | |
207 Sharing Defaults | |
208 ================ | |
209 | |
210 If you want to set default values for `configure' scripts to share, | |
211 you can create a site shell script called `config.site' that gives | |
212 default values for variables like `CC', `cache_file', and `prefix'. | |
213 `configure' looks for `PREFIX/share/config.site' if it exists, then | |
214 `PREFIX/etc/config.site' if it exists. Or, you can set the | |
215 `CONFIG_SITE' environment variable to the location of the site script. | |
216 A warning: not all `configure' scripts look for a site script. | |
217 | |
218 Defining Variables | |
219 ================== | |
220 | |
221 Variables not defined in a site shell script can be set in the | |
222 environment passed to `configure'. However, some packages may run | |
223 configure again during the build, and the customized values of these | |
224 variables may be lost. In order to avoid this problem, you should set | |
225 them in the `configure' command line, using `VAR=value'. For example: | |
226 | |
227 ./configure CC=/usr/local2/bin/gcc | |
228 | |
229 causes the specified `gcc' to be used as the C compiler (unless it is | |
230 overridden in the site shell script). | |
231 | |
232 Unfortunately, this technique does not work for `CONFIG_SHELL' due to | |
233 an Autoconf bug. Until the bug is fixed you can use this workaround: | |
234 | |
235 CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash | |
236 | |
237 `configure' Invocation | |
238 ====================== | |
239 | |
240 `configure' recognizes the following options to control how it | |
241 operates. | |
242 | |
243 `--help' | |
244 `-h' | |
245 Print a summary of all of the options to `configure', and exit. | |
246 | |
247 `--help=short' | |
248 `--help=recursive' | |
249 Print a summary of the options unique to this package's | |
250 `configure', and exit. The `short' variant lists options used | |
251 only in the top level, while the `recursive' variant lists options | |
252 also present in any nested packages. | |
253 | |
254 `--version' | |
255 `-V' | |
256 Print the version of Autoconf used to generate the `configure' | |
257 script, and exit. | |
258 | |
259 `--cache-file=FILE' | |
260 Enable the cache: use and save the results of the tests in FILE, | |
261 traditionally `config.cache'. FILE defaults to `/dev/null' to | |
262 disable caching. | |
263 | |
264 `--config-cache' | |
265 `-C' | |
266 Alias for `--cache-file=config.cache'. | |
267 | |
268 `--quiet' | |
269 `--silent' | |
270 `-q' | |
271 Do not print messages saying which checks are being made. To | |
272 suppress all normal output, redirect it to `/dev/null' (any error | |
273 messages will still be shown). | |
274 | |
275 `--srcdir=DIR' | |
276 Look for the package's source code in directory DIR. Usually | |
277 `configure' can determine that directory automatically. | |
278 | |
279 `--prefix=DIR' | |
280 Use DIR as the installation prefix. *Note Installation Names:: | |
281 for more details, including other options available for fine-tuning | |
282 the installation locations. | |
283 | |
284 `--no-create' | |
285 `-n' | |
286 Run the configure checks, but stop before creating any output | |
287 files. | |
288 | |
289 `configure' also accepts some other, not widely useful, options. Run | |
290 `configure --help' for more details. | |
291 | |
OLD | NEW |