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- Basic Installation
- ==================
-
- These are generic installation instructions.
-
- The `configure' shell script attempts to guess correct values for
- various system-dependent variables used during compilation. It uses
- those values to create a `Makefile' in each directory of the package.
- It may also create one or more `.h' files containing system-dependent
- definitions. Finally, it creates a shell script `config.status' that
- you can run in the future to recreate the current configuration, a file
- `config.cache' that saves the results of its tests to speed up
- reconfiguring, and a file `config.log' containing compiler output
- (useful mainly for debugging `configure').
-
- If you need to do unusual things to compile the package, please try
- to figure out how `configure' could check whether to do them, and mail
- diffs or instructions to the address given in the `README' so they can
- be considered for the next release. If at some point `config.cache'
- contains results you don't want to keep, you may remove or edit it.
-
- The file `configure.in' is used to create `configure' by a program
- called `autoconf'. You only need `configure.in' if you want to change
- it or regenerate `configure' using a newer version of `autoconf'.
-
- The simplest way to compile this package is:
-
- 1. `cd' to the directory containing the package's source code and type
- `./configure' to configure the package for your system. If you're
- using `csh' on an old version of System V, you might need to type
- `sh ./configure' instead to prevent `csh' from trying to execute
- `configure' itself.
-
- Running `configure' takes awhile. While running, it prints some
- messages telling which features it is checking for.
-
- 2. Type `make' to compile the package.
-
- 3. Optionally, type `make check' to run any self-tests that come with
- the package.
-
- 4. Type `make install' to install the programs and any data files and
- documentation.
-
- 5. You can remove the program binaries and object files from the
- source directory by typing `make clean'. To also remove the files
- that `configure' created (so you can compile the package for a
- different kind of computer), type `make distclean'.
-
- Compilers and Options
- =====================
-
- Some systems require unusual options for compilation or linking that
- the `configure' script does not know about. You can give `configure'
- initial values for variables by setting them in the environment. Using
- a Bourne-compatible shell, you can do that on the command line like
- this:
- CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
-
- Or on systems that have the `env' program, you can do it like this:
- env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
-
- Using a Different Build Directory
- =================================
-
- You can compile the package in a different directory from the one
- containing the source code. Doing so allows you to compile it on more
- than one kind of computer at the same time. To do this, you must use a
- version of `make' that supports the `VPATH' variable, such as GNU
- `make'. `cd' to the directory where you want the object files and
- executables to go and run the `configure' script. `configure'
- automatically checks for the source code in the directory that
- `configure' is in and in `..'.
-
- Installation Names
- ==================
-
- By default, `make install' will install the package's files in
- `/usr/local/bin', `/usr/local/man', etc. You can specify an
- installation prefix other than `/usr/local' by giving `configure' the
- option `--prefix=PATH'. Alternately, you can do so by consistently
- giving a value for the `prefix' variable when you run `make', e.g.,
- make prefix=/usr/gnu
- make prefix=/usr/gnu install
-
- You can specify separate installation prefixes for
- architecture-specific files and architecture-independent files. If you
- give `configure' the option `--exec-prefix=PATH' or set the `make'
- variable `exec_prefix' to PATH, the package will use PATH as the prefix
- for installing programs and libraries. Documentation and other data
- files will still use the regular prefix.
-
- If you use an unusual directory layout in which some of the
- installation directory names are not based on a single prefix, you can
- set the individual variables `bindir', `libdir', etc. on the `make'
- command line:
- make bindir=/bin libdir=/usr/lib
-
- Check the `Makefile.in' files to see which variables each package uses.
-
- If the package supports it, you can cause programs to be installed
- with an extra prefix or suffix on their names by giving `configure' the
- option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
- Optional Features
- =================
-
- Some packages pay attention to `--enable-FEATURE' options to
- `configure', where FEATURE indicates an optional part of the package.
- They may also pay attention to `--with-PACKAGE' options, where PACKAGE
- is something like `gnu-as' or `x' (for the X Window System). The
- `README' should mention any `--enable-' and `--with-' options that the
- package recognizes.
-
- For packages that use the X Window System, `configure' can usually
- find the X include and library files automatically, but if it doesn't,
- you can use the `configure' options `--x-includes=DIR' and
- `--x-libraries=DIR' to specify their locations.
-
- Specifying the System Type
- ==========================
-
- There may be some features `configure' can not figure out
- automatically, but needs to determine by the type of host the package
- will run on. Usually `configure' can figure that out, but if it prints
- a message saying it can not guess the host type, give it the
- `--host=TYPE' option. TYPE can either be a short name for the system
- type, such as `sun4', or a canonical name with three fields:
- CPU-COMPANY-SYSTEM
-
- See the file `config.sub' for the possible values of each field. If
- `config.sub' isn't included in this package, then this package doesn't
- need to know the host type.
-
- If you are building compiler tools for cross-compiling, you can also
- use the `--target=TYPE' option to select the type of system they will
- produce code for and the `--build=TYPE' option to select the type of
- system on which you are compiling the package.
-
- Sharing Defaults
- ================
-
- If you want to set default values for `configure' scripts to share,
- you can create a site shell script called `config.site' that gives
- default values for variables like `CC', `cache_file', and `prefix'.
- `configure' looks for `PREFIX/lib/config.site' if it exists, then
- `EXEC_PREFIX/lib/config.site' if it exists. Or, you can set the
- `CONFIG_SITE' environment variable to the location of the site script.
- A warning: not all `configure' scripts look for a site script.
-
- Operation Controls
- ==================
-
- `configure' recognizes the following options to control how it
- operates.
-
- `--cache-file=FILE'
- Save the results of the tests in FILE instead of `config.cache'.
- Set FILE to `/dev/null' to disable caching, for debugging
- `configure'.
-
- `--help'
- Print a summary of the options to `configure', and exit.
-
- `--quiet'
- `--silent'
- `-q'
- Do not print messages saying which checks are being made.
-
- `--srcdir=DIR'
- Look for the package's source code in directory DIR. Usually
- `configure' can determine that directory automatically.
-
- `--version'
- Print the version of Autoconf used to generate the `configure'
- script, and exit.
-
- `configure' also accepts some other, not widely useful, options.
-
-