1 Note: logwtmp plugin source file patchlevel.h must match pppd version
2 on system if it is used. Edit the file plugins/patchlevel.h
10 These are generic installation instructions.
12 The `configure' shell script attempts to guess correct values for
13 various system-dependent variables used during compilation. It uses
14 those values to create a `Makefile' in each directory of the package.
15 It may also create one or more `.h' files containing system-dependent
16 definitions. Finally, it creates a shell script `config.status' that
17 you can run in the future to recreate the current configuration, a file
18 `config.cache' that saves the results of its tests to speed up
19 reconfiguring, and a file `config.log' containing compiler output
20 (useful mainly for debugging `configure').
22 If you need to do unusual things to compile the package, please try
23 to figure out how `configure' could check whether to do them, and mail
24 diffs or instructions to the address given in the `README' so they can
25 be considered for the next release. If at some point `config.cache'
26 contains results you don't want to keep, you may remove or edit it.
28 The file `configure.in' is used to create `configure' by a program
29 called `autoconf'. You only need `configure.in' if you want to change
30 it or regenerate `configure' using a newer version of `autoconf'.
32 The simplest way to compile this package is:
34 1. `cd' to the directory containing the package's source code and type
35 `./configure' to configure the package for your system. If you're
36 using `csh' on an old version of System V, you might need to type
37 `sh ./configure' instead to prevent `csh' from trying to execute
40 Running `configure' takes awhile. While running, it prints some
41 messages telling which features it is checking for.
43 2. Type `make' to compile the package.
45 3. Optionally, type `make check' to run any self-tests that come with
48 4. Type `make install' to install the programs and any data files and
51 5. You can remove the program binaries and object files from the
52 source code directory by typing `make clean'. To also remove the
53 files that `configure' created (so you can compile the package for
54 a different kind of computer), type `make distclean'. There is
55 also a `make maintainer-clean' target, but that is intended mainly
56 for the package's developers. If you use it, you may have to get
57 all sorts of other programs in order to regenerate files that came
58 with the distribution.
63 Some systems require unusual options for compilation or linking that
64 the `configure' script does not know about. You can give `configure'
65 initial values for variables by setting them in the environment. Using
66 a Bourne-compatible shell, you can do that on the command line like
68 CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
70 Or on systems that have the `env' program, you can do it like this:
71 env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
73 Compiling For Multiple Architectures
74 ====================================
76 You can compile the package for more than one kind of computer at the
77 same time, by placing the object files for each architecture in their
78 own directory. To do this, you must use a version of `make' that
79 supports the `VPATH' variable, such as GNU `make'. `cd' to the
80 directory where you want the object files and executables to go and run
81 the `configure' script. `configure' automatically checks for the
82 source code in the directory that `configure' is in and in `..'.
84 If you have to use a `make' that does not supports the `VPATH'
85 variable, you have to compile the package for one architecture at a time
86 in the source code directory. After you have installed the package for
87 one architecture, use `make distclean' before reconfiguring for another
93 By default, `make install' will install the package's files in
94 `/usr/local/bin', `/usr/local/man', etc. You can specify an
95 installation prefix other than `/usr/local' by giving `configure' the
96 option `--prefix=PATH'.
98 You can specify separate installation prefixes for
99 architecture-specific files and architecture-independent files. If you
100 give `configure' the option `--exec-prefix=PATH', the package will use
101 PATH as the prefix for installing programs and libraries.
102 Documentation and other data files will still use the regular prefix.
104 In addition, if you use an unusual directory layout you can give
105 options like `--bindir=PATH' to specify different values for particular
106 kinds of files. Run `configure --help' for a list of the directories
107 you can set and what kinds of files go in them.
109 If the package supports it, you can cause programs to be installed
110 with an extra prefix or suffix on their names by giving `configure' the
111 option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
116 Some packages pay attention to `--enable-FEATURE' options to
117 `configure', where FEATURE indicates an optional part of the package.
118 They may also pay attention to `--with-PACKAGE' options, where PACKAGE
119 is something like `gnu-as' or `x' (for the X Window System). The
120 `README' should mention any `--enable-' and `--with-' options that the
123 For packages that use the X Window System, `configure' can usually
124 find the X include and library files automatically, but if it doesn't,
125 you can use the `configure' options `--x-includes=DIR' and
126 `--x-libraries=DIR' to specify their locations.
128 Specifying the System Type
129 ==========================
131 There may be some features `configure' can not figure out
132 automatically, but needs to determine by the type of host the package
133 will run on. Usually `configure' can figure that out, but if it prints
134 a message saying it can not guess the host type, give it the
135 `--host=TYPE' option. TYPE can either be a short name for the system
136 type, such as `sun4', or a canonical name with three fields:
139 See the file `config.sub' for the possible values of each field. If
140 `config.sub' isn't included in this package, then this package doesn't
141 need to know the host type.
143 If you are building compiler tools for cross-compiling, you can also
144 use the `--target=TYPE' option to select the type of system they will
145 produce code for and the `--build=TYPE' option to select the type of
146 system on which you are compiling the package.
151 If you want to set default values for `configure' scripts to share,
152 you can create a site shell script called `config.site' that gives
153 default values for variables like `CC', `cache_file', and `prefix'.
154 `configure' looks for `PREFIX/share/config.site' if it exists, then
155 `PREFIX/etc/config.site' if it exists. Or, you can set the
156 `CONFIG_SITE' environment variable to the location of the site script.
157 A warning: not all `configure' scripts look for a site script.
162 `configure' recognizes the following options to control how it
166 Use and save the results of the tests in FILE instead of
167 `./config.cache'. Set FILE to `/dev/null' to disable caching, for
168 debugging `configure'.
171 Print a summary of the options to `configure', and exit.
176 Do not print messages saying which checks are being made. To
177 suppress all normal output, redirect it to `/dev/null' (any error
178 messages will still be shown).
181 Look for the package's source code in directory DIR. Usually
182 `configure' can determine that directory automatically.
185 Print the version of Autoconf used to generate the `configure'
188 `configure' also accepts some other, not widely useful, options.