| [2556] | 1 | Copyright 1994, 1995, 1996, 1999, 2000, 2001 Free Software Foundation,
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| 2 | Inc.
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| 3 |
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| 4 | This file is free documentation; the Free Software Foundation gives
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| 5 | unlimited permission to copy, distribute and modify it.
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| 6 |
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| 7 | Basic Installation
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| 8 | ==================
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| 9 |
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| 10 | These are generic installation instructions.
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| 11 |
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| 12 | The `configure' shell script attempts to guess correct values for
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| 13 | various system-dependent variables used during compilation. It uses
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| 14 | those values to create a `Makefile' in each directory of the package.
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| 15 | It may also create one or more `.h' files containing system-dependent
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| 16 | definitions. Finally, it creates a shell script `config.status' that
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| 17 | you can run in the future to recreate the current configuration, and a
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| 18 | file `config.log' containing compiler output (useful mainly for
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| 19 | debugging `configure').
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| 20 |
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| 21 | It can also use an optional file (typically called `config.cache'
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| 22 | and enabled with `--cache-file=config.cache' or simply `-C') that saves
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| 23 | the results of its tests to speed up reconfiguring. (Caching is
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| 24 | disabled by default to prevent problems with accidental use of stale
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| 25 | cache files.)
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| 26 |
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| 27 | If you need to do unusual things to compile the package, please try
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| 28 | to figure out how `configure' could check whether to do them, and mail
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| 29 | diffs or instructions to the address given in the `README' so they can
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| 30 | be considered for the next release. If you are using the cache, and at
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| 31 | some point `config.cache' contains results you don't want to keep, you
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| 32 | may remove or edit it.
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| 33 |
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| 34 | The file `configure.ac' (or `configure.in') is used to create
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| 35 | `configure' by a program called `autoconf'. You only need
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| 36 | `configure.ac' if you want to change it or regenerate `configure' using
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| 37 | a newer version of `autoconf'.
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| 38 |
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| 39 | The simplest way to compile this package is:
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| 40 |
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| 41 | 1. `cd' to the directory containing the package's source code and type
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| 42 | `./configure' to configure the package for your system. If you're
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| 43 | using `csh' on an old version of System V, you might need to type
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| 44 | `sh ./configure' instead to prevent `csh' from trying to execute
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| 45 | `configure' itself.
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| 46 |
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| 47 | Running `configure' takes awhile. While running, it prints some
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| 48 | messages telling which features it is checking for.
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| 49 |
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| 50 | 2. Type `make' to compile the package.
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| 51 |
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| 52 | 3. Optionally, type `make check' to run any self-tests that come with
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| 53 | the package.
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| 54 |
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| 55 | 4. Type `make install' to install the programs and any data files and
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| 56 | documentation.
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| 57 |
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| 58 | 5. You can remove the program binaries and object files from the
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| 59 | source code directory by typing `make clean'. To also remove the
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| 60 | files that `configure' created (so you can compile the package for
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| 61 | a different kind of computer), type `make distclean'. There is
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| 62 | also a `make maintainer-clean' target, but that is intended mainly
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| 63 | for the package's developers. If you use it, you may have to get
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| 64 | all sorts of other programs in order to regenerate files that came
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| 65 | with the distribution.
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| 66 |
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| 67 | Compilers and Options
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| 68 | =====================
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| 69 |
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| 70 | Some systems require unusual options for compilation or linking that
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| 71 | the `configure' script does not know about. Run `./configure --help'
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| 72 | for details on some of the pertinent environment variables.
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| 73 |
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| 74 | You can give `configure' initial values for variables by setting
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| 75 | them in the environment. You can do that on the command line like this:
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| 76 |
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| 77 | ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
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| 78 |
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| 79 | *Note Defining Variables::, for more details.
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| 80 |
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| 81 | Compiling For Multiple Architectures
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| 82 | ====================================
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| 83 |
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| 84 | You can compile the package for more than one kind of computer at the
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| 85 | same time, by placing the object files for each architecture in their
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| 86 | own directory. To do this, you must use a version of `make' that
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| 87 | supports the `VPATH' variable, such as GNU `make'. `cd' to the
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| 88 | directory where you want the object files and executables to go and run
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| 89 | the `configure' script. `configure' automatically checks for the
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| 90 | source code in the directory that `configure' is in and in `..'.
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| 91 |
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| 92 | If you have to use a `make' that does not support the `VPATH'
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| 93 | variable, you have to compile the package for one architecture at a
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| 94 | time in the source code directory. After you have installed the
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| 95 | package for one architecture, use `make distclean' before reconfiguring
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| 96 | for another architecture.
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| 97 |
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| 98 | Installation Names
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| 99 | ==================
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| 100 |
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| 101 | By default, `make install' will install the package's files in
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| 102 | `/usr/local/bin', `/usr/local/man', etc. You can specify an
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