4 This installation guide is for POSIX (Autoconf) systems.
5 For Win32, Win64, DOS and OS/2 please read the file B/00README.TXT.
12 make test (run a full test)
13 make install (when logged in as root)
17 Instead of using Autoconf you may want to adapt the simple build
18 script in B/generic/build.sh.
22 LZO uses Libtool so that shared libraries are supported on many
23 systems. If want to build shared libraries type you have to type
24 `./configure --enable-shared' - building shared libraries is not
29 On Intel i386 systems, the assembler versions of the decompressors are
30 built and used by default. You can use `./configure --disable-asm' if
31 for some reason they cause compilation problems on your system.
35 [ The standard Autoconf installation instructions follow below. ]
39 Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002 Free Software
42 This file is free documentation; the Free Software Foundation gives
43 unlimited permission to copy, distribute and modify it.
48 These are generic installation instructions.
50 The `configure' shell script attempts to guess correct values for
51 various system-dependent variables used during compilation. It uses
52 those values to create a `Makefile' in each directory of the package.
53 It may also create one or more `.h' files containing system-dependent
54 definitions. Finally, it creates a shell script `config.status' that
55 you can run in the future to recreate the current configuration, and a
56 file `config.log' containing compiler output (useful mainly for
57 debugging `configure').
59 It can also use an optional file (typically called `config.cache'
60 and enabled with `--cache-file=config.cache' or simply `-C') that saves
61 the results of its tests to speed up reconfiguring. (Caching is
62 disabled by default to prevent problems with accidental use of stale
65 If you need to do unusual things to compile the package, please try
66 to figure out how `configure' could check whether to do them, and mail
67 diffs or instructions to the address given in the `README' so they can
68 be considered for the next release. If you are using the cache, and at
69 some point `config.cache' contains results you don't want to keep, you
70 may remove or edit it.
72 The file `configure.ac' (or `configure.in') is used to create
73 `configure' by a program called `autoconf'. You only need
74 `configure.ac' if you want to change it or regenerate `configure' using
75 a newer version of `autoconf'.
77 The simplest way to compile this package is:
79 1. `cd' to the directory containing the package's source code and type
80 `./configure' to configure the package for your system. If you're
81 using `csh' on an old version of System V, you might need to type
82 `sh ./configure' instead to prevent `csh' from trying to execute
85 Running `configure' takes awhile. While running, it prints some
86 messages telling which features it is checking for.
88 2. Type `make' to compile the package.
90 3. Optionally, type `make check' to run any self-tests that come with
93 4. Type `make install' to install the programs and any data files and
96 5. You can remove the program binaries and object files from the
97 source code directory by typing `make clean'. To also remove the
98 files that `configure' created (so you can compile the package for
99 a different kind of computer), type `make distclean'. There is
100 also a `make maintainer-clean' target, but that is intended mainly
101 for the package's developers. If you use it, you may have to get
102 all sorts of other programs in order to regenerate files that came
103 with the distribution.
105 Compilers and Options
106 =====================
108 Some systems require unusual options for compilation or linking that
109 the `configure' script does not know about. Run `./configure --help'
110 for details on some of the pertinent environment variables.
112 You can give `configure' initial values for configuration parameters
113 by setting variables in the command line or in the environment. Here
116 ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
118 Compiling For Multiple Architectures
119 ====================================
121 You can compile the package for more than one kind of computer at the
122 same time, by placing the object files for each architecture in their
123 own directory. To do this, you must use a version of `make' that
124 supports the `VPATH' variable, such as GNU `make'. `cd' to the
125 directory where you want the object files and executables to go and run
126 the `configure' script. `configure' automatically checks for the
127 source code in the directory that `configure' is in and in `..'.
129 If you have to use a `make' that does not support the `VPATH'
130 variable, you have to compile the package for one architecture at a
131 time in the source code directory. After you have installed the
132 package for one architecture, use `make distclean' before reconfiguring
133 for another architecture.
138 By default, `make install' will install the package's files in
139 `/usr/local/bin', `/usr/local/man', etc. You can specify an
140 installation prefix other than `/usr/local' by giving `configure' the
141 option `--prefix=PATH'.
143 You can specify separate installation prefixes for
144 architecture-specific files and architecture-independent files. If you
145 give `configure' the option `--exec-prefix=PATH', the package will use
146 PATH as the prefix for installing programs and libraries.
147 Documentation and other data files will still use the regular prefix.
149 In addition, if you use an unusual directory layout you can give
150 options like `--bindir=PATH' to specify different values for particular
151 kinds of files. Run `configure --help' for a list of the directories
152 you can set and what kinds of files go in them.
154 If the package supports it, you can cause programs to be installed
155 with an extra prefix or suffix on their names by giving `configure' the
156 option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
161 Some packages pay attention to `--enable-FEATURE' options to
162 `configure', where FEATURE indicates an optional part of the package.
163 They may also pay attention to `--with-PACKAGE' options, where PACKAGE
164 is something like `gnu-as' or `x' (for the X Window System). The
165 `README' should mention any `--enable-' and `--with-' options that the
168 For packages that use the X Window System, `configure' can usually
169 find the X include and library files automatically, but if it doesn't,
170 you can use the `configure' options `--x-includes=DIR' and
171 `--x-libraries=DIR' to specify their locations.
173 Specifying the System Type
174 ==========================
176 There may be some features `configure' cannot figure out
177 automatically, but needs to determine by the type of machine the package
178 will run on. Usually, assuming the package is built to be run on the
179 _same_ architectures, `configure' can figure that out, but if it prints
180 a message saying it cannot guess the machine type, give it the
181 `--build=TYPE' option. TYPE can either be a short name for the system
182 type, such as `sun4', or a canonical name which has the form:
186 where SYSTEM can have one of these forms:
190 See the file `config.sub' for the possible values of each field. If
191 `config.sub' isn't included in this package, then this package doesn't
192 need to know the machine type.
194 If you are _building_ compiler tools for cross-compiling, you should
195 use the `--target=TYPE' option to select the type of system they will
198 If you want to _use_ a cross compiler, that generates code for a
199 platform different from the build platform, you should specify the
200 "host" platform (i.e., that on which the generated programs will
201 eventually be run) with `--host=TYPE'.
206 If you want to set default values for `configure' scripts to share,
207 you can create a site shell script called `config.site' that gives
208 default values for variables like `CC', `cache_file', and `prefix'.
209 `configure' looks for `PREFIX/share/config.site' if it exists, then
210 `PREFIX/etc/config.site' if it exists. Or, you can set the
211 `CONFIG_SITE' environment variable to the location of the site script.
212 A warning: not all `configure' scripts look for a site script.
217 Variables not defined in a site shell script can be set in the
218 environment passed to `configure'. However, some packages may run
219 configure again during the build, and the customized values of these
220 variables may be lost. In order to avoid this problem, you should set
221 them in the `configure' command line, using `VAR=value'. For example:
223 ./configure CC=/usr/local2/bin/gcc
225 will cause the specified gcc to be used as the C compiler (unless it is
226 overridden in the site shell script).
228 `configure' Invocation
229 ======================
231 `configure' recognizes the following options to control how it
236 Print a summary of the options to `configure', and exit.
240 Print the version of Autoconf used to generate the `configure'
244 Enable the cache: use and save the results of the tests in FILE,
245 traditionally `config.cache'. FILE defaults to `/dev/null' to
250 Alias for `--cache-file=config.cache'.
255 Do not print messages saying which checks are being made. To
256 suppress all normal output, redirect it to `/dev/null' (any error
257 messages will still be shown).
260 Look for the package's source code in directory DIR. Usually
261 `configure' can determine that directory automatically.
263 `configure' also accepts some other, not widely useful, options. Run
264 `configure --help' for more details.