it was included a examples directory
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161
INSTALL
161
INSTALL
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@ -1,43 +1,27 @@
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Installation Instructions
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*************************
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Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004 Free
|
||||
Software Foundation, Inc.
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This file is free documentation; the Free Software Foundation gives
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unlimited permission to copy, distribute and modify it.
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Basic Installation
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||||
==================
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||||
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||||
These are generic installation instructions.
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||||
These are generic installation instructions.
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||||
|
||||
The `configure' shell script attempts to guess correct values for
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various system-dependent variables used during compilation. It uses
|
||||
those values to create a `Makefile' in each directory of the package.
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It may also create one or more `.h' files containing system-dependent
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||||
definitions. Finally, it creates a shell script `config.status' that
|
||||
you can run in the future to recreate the current configuration, and a
|
||||
file `config.log' containing compiler output (useful mainly for
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||||
debugging `configure').
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It can also use an optional file (typically called `config.cache'
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||||
and enabled with `--cache-file=config.cache' or simply `-C') that saves
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||||
the results of its tests to speed up reconfiguring. (Caching is
|
||||
disabled by default to prevent problems with accidental use of stale
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||||
cache files.)
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you can run in the future to recreate the current configuration, a file
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`config.cache' that saves the results of its tests to speed up
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reconfiguring, and a file `config.log' containing compiler output
|
||||
(useful mainly for debugging `configure').
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||||
|
||||
If you need to do unusual things to compile the package, please try
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||||
to figure out how `configure' could check whether to do them, and mail
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||||
diffs or instructions to the address given in the `README' so they can
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||||
be considered for the next release. If you are using the cache, and at
|
||||
some point `config.cache' contains results you don't want to keep, you
|
||||
may remove or edit it.
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||||
be considered for the next release. If at some point `config.cache'
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contains results you don't want to keep, you may remove or edit it.
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||||
|
||||
The file `configure.ac' (or `configure.in') is used to create
|
||||
`configure' by a program called `autoconf'. You only need
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||||
`configure.ac' if you want to change it or regenerate `configure' using
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||||
a newer version of `autoconf'.
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||||
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'.
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The simplest way to compile this package is:
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@ -70,22 +54,20 @@ The simplest way to compile this package is:
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|||
Compilers and Options
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=====================
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Some systems require unusual options for compilation or linking that the
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`configure' script does not know about. Run `./configure --help' for
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details on some of the pertinent environment variables.
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||||
Some systems require unusual options for compilation or linking that
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the `configure' script does not know about. You can give `configure'
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initial values for variables by setting them in the environment. Using
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||||
a Bourne-compatible shell, you can do that on the command line like
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this:
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CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
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You can give `configure' initial values for configuration parameters
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by setting variables in the command line or in the environment. Here
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is an example:
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./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
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*Note Defining Variables::, for more details.
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Or on systems that have the `env' program, you can do it like this:
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env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
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Compiling For Multiple Architectures
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====================================
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You can compile the package for more than one kind of computer at the
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You can compile the package for more than one kind of computer at the
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same time, by placing the object files for each architecture in their
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own directory. To do this, you must use a version of `make' that
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supports the `VPATH' variable, such as GNU `make'. `cd' to the
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@ -93,28 +75,28 @@ directory where you want the object files and executables to go and run
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the `configure' script. `configure' automatically checks for the
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source code in the directory that `configure' is in and in `..'.
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If you have to use a `make' that does not support the `VPATH'
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variable, you have to compile the package for one architecture at a
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||||
time in the source code directory. After you have installed the
|
||||
package for one architecture, use `make distclean' before reconfiguring
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for another architecture.
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If you have to use a `make' that does not supports the `VPATH'
|
||||
variable, you have to compile the package for one architecture at a time
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in the source code directory. After you have installed the package for
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one architecture, use `make distclean' before reconfiguring for another
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architecture.
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Installation Names
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==================
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By default, `make install' will install the package's files in
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By default, `make install' will install the package's files in
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`/usr/local/bin', `/usr/local/man', etc. You can specify an
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installation prefix other than `/usr/local' by giving `configure' the
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option `--prefix=PREFIX'.
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option `--prefix=PATH'.
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You can specify separate installation prefixes for
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||||
architecture-specific files and architecture-independent files. If you
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give `configure' the option `--exec-prefix=PREFIX', the package will
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use PREFIX as the prefix for installing programs and libraries.
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give `configure' the option `--exec-prefix=PATH', the package will use
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PATH as the prefix for installing programs and libraries.
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Documentation and other data files will still use the regular prefix.
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|
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In addition, if you use an unusual directory layout you can give
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options like `--bindir=DIR' to specify different values for particular
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options like `--bindir=PATH' to specify different values for particular
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kinds of files. Run `configure --help' for a list of the directories
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you can set and what kinds of files go in them.
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@ -125,7 +107,7 @@ option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
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Optional Features
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=================
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Some packages pay attention to `--enable-FEATURE' options to
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||||
Some packages pay attention to `--enable-FEATURE' options to
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||||
`configure', where FEATURE indicates an optional part of the package.
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||||
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
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||||
is something like `gnu-as' or `x' (for the X Window System). The
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@ -140,80 +122,47 @@ you can use the `configure' options `--x-includes=DIR' and
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Specifying the System Type
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==========================
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There may be some features `configure' cannot figure out automatically,
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but needs to determine by the type of machine the package will run on.
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Usually, assuming the package is built to be run on the _same_
|
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architectures, `configure' can figure that out, but if it prints a
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||||
message saying it cannot guess the machine type, give it the
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`--build=TYPE' option. TYPE can either be a short name for the system
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type, such as `sun4', or a canonical name which has the form:
|
||||
|
||||
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:
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CPU-COMPANY-SYSTEM
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where SYSTEM can have one of these forms:
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OS KERNEL-OS
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See the file `config.sub' for the possible values of each field. If
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||||
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
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||||
need to know the machine type.
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||||
need to know the host type.
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||||
If you are _building_ compiler tools for cross-compiling, you should
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||||
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
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||||
produce code for.
|
||||
|
||||
If you want to _use_ a cross compiler, that generates code for a
|
||||
platform different from the build platform, you should specify the
|
||||
"host" platform (i.e., that on which the generated programs will
|
||||
eventually be run) with `--host=TYPE'.
|
||||
produce code for and the `--build=TYPE' option to select the type of
|
||||
system on which you are compiling the package.
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|
||||
Sharing Defaults
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||||
================
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||||
|
||||
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'.
|
||||
If you want to set default values for `configure' scripts to share,
|
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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/share/config.site' if it exists, then
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`PREFIX/etc/config.site' if it exists. Or, you can set the
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`CONFIG_SITE' environment variable to the location of the site script.
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||||
A warning: not all `configure' scripts look for a site script.
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Defining Variables
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Operation Controls
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||||
==================
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||||
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Variables not defined in a site shell script can be set in the
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||||
environment passed to `configure'. However, some packages may run
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||||
configure again during the build, and the customized values of these
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||||
variables may be lost. In order to avoid this problem, you should set
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||||
them in the `configure' command line, using `VAR=value'. For example:
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||||
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./configure CC=/usr/local2/bin/gcc
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will cause the specified gcc to be used as the C compiler (unless it is
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overridden in the site shell script).
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`configure' Invocation
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======================
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||||
|
||||
`configure' recognizes the following options to control how it operates.
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`--help'
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`-h'
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Print a summary of the options to `configure', and exit.
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||||
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`--version'
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`-V'
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Print the version of Autoconf used to generate the `configure'
|
||||
script, and exit.
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||||
`configure' recognizes the following options to control how it
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operates.
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||||
|
||||
`--cache-file=FILE'
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Enable the cache: use and save the results of the tests in FILE,
|
||||
traditionally `config.cache'. FILE defaults to `/dev/null' to
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||||
disable caching.
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||||
Use and save the results of the tests in FILE instead of
|
||||
`./config.cache'. Set FILE to `/dev/null' to disable caching, for
|
||||
debugging `configure'.
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||||
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`--config-cache'
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`-C'
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Alias for `--cache-file=config.cache'.
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`--help'
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Print a summary of the options to `configure', and exit.
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`--quiet'
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`--silent'
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@ -226,6 +175,8 @@ overridden in the site shell script).
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|||
Look for the package's source code in directory DIR. Usually
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`configure' can determine that directory automatically.
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||||
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||||
`configure' also accepts some other, not widely useful, options. Run
|
||||
`configure --help' for more details.
|
||||
`--version'
|
||||
Print the version of Autoconf used to generate the `configure'
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||||
script, and exit.
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||||
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||||
`configure' also accepts some other, not widely useful, options.
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||||
|
|
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|||
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@ -1,2 +1,2 @@
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SUBDIRS = src tests
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SUBDIRS = src tests examples
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EXTRA_DIST = cmph.spec configure.ac
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|
|
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|||
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@ -35,4 +35,4 @@ dnl Checks for library functions.
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||||
AC_CHECK_SPOON
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dnl AC_OUTPUT(Makefile tests/Makefile samples/Makefile)
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||||
AC_OUTPUT(Makefile src/Makefile tests/Makefile)
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||||
AC_OUTPUT(Makefile src/Makefile tests/Makefile examples/Makefile)
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||||
|
|
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|||
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@ -0,0 +1,80 @@
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|||
file_adapter_ex2.o: file_adapter_ex2.c ../src/cmph.h \
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/usr/include/stdlib.h /usr/include/features.h /usr/include/sys/cdefs.h \
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||||
/usr/include/gnu/stubs.h \
|
||||
/usr/lib/gcc-lib/i486-linux/3.3.5/include/stddef.h \
|
||||
/usr/include/sys/types.h /usr/include/bits/types.h \
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||||
/usr/include/bits/wordsize.h /usr/include/bits/typesizes.h \
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/usr/include/time.h /usr/include/endian.h /usr/include/bits/endian.h \
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||||
/usr/include/sys/select.h /usr/include/bits/select.h \
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||||
/usr/include/bits/sigset.h /usr/include/bits/time.h \
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||||
/usr/include/sys/sysmacros.h /usr/include/bits/pthreadtypes.h \
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||||
/usr/include/bits/sched.h /usr/include/alloca.h /usr/include/stdio.h \
|
||||
/usr/include/libio.h /usr/include/_G_config.h /usr/include/wchar.h \
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/usr/include/bits/wchar.h /usr/include/gconv.h \
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||||
/usr/lib/gcc-lib/i486-linux/3.3.5/include/stdarg.h \
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/usr/include/bits/stdio_lim.h /usr/include/bits/sys_errlist.h \
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/usr/include/bits/stdio.h ../src/cmph_types.h
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|
||||
../src/cmph.h:
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||||
|
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/usr/include/stdlib.h:
|
||||
|
||||
/usr/include/features.h:
|
||||
|
||||
/usr/include/sys/cdefs.h:
|
||||
|
||||
/usr/include/gnu/stubs.h:
|
||||
|
||||
/usr/lib/gcc-lib/i486-linux/3.3.5/include/stddef.h:
|
||||
|
||||
/usr/include/sys/types.h:
|
||||
|
||||
/usr/include/bits/types.h:
|
||||
|
||||
/usr/include/bits/wordsize.h:
|
||||
|
||||
/usr/include/bits/typesizes.h:
|
||||
|
||||
/usr/include/time.h:
|
||||
|
||||
/usr/include/endian.h:
|
||||
|
||||
/usr/include/bits/endian.h:
|
||||
|
||||
/usr/include/sys/select.h:
|
||||
|
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/usr/include/bits/select.h:
|
||||
|
||||
/usr/include/bits/sigset.h:
|
||||
|
||||
/usr/include/bits/time.h:
|
||||
|
||||
/usr/include/sys/sysmacros.h:
|
||||
|
||||
/usr/include/bits/pthreadtypes.h:
|
||||
|
||||
/usr/include/bits/sched.h:
|
||||
|
||||
/usr/include/alloca.h:
|
||||
|
||||
/usr/include/stdio.h:
|
||||
|
||||
/usr/include/libio.h:
|
||||
|
||||
/usr/include/_G_config.h:
|
||||
|
||||
/usr/include/wchar.h:
|
||||
|
||||
/usr/include/bits/wchar.h:
|
||||
|
||||
/usr/include/gconv.h:
|
||||
|
||||
/usr/lib/gcc-lib/i486-linux/3.3.5/include/stdarg.h:
|
||||
|
||||
/usr/include/bits/stdio_lim.h:
|
||||
|
||||
/usr/include/bits/sys_errlist.h:
|
||||
|
||||
/usr/include/bits/stdio.h:
|
||||
|
||||
../src/cmph_types.h:
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||||
|
|
@ -0,0 +1,80 @@
|
|||
vector_adapter_ex1.o: vector_adapter_ex1.c ../src/cmph.h \
|
||||
/usr/include/stdlib.h /usr/include/features.h /usr/include/sys/cdefs.h \
|
||||
/usr/include/gnu/stubs.h \
|
||||
/usr/lib/gcc-lib/i486-linux/3.3.5/include/stddef.h \
|
||||
/usr/include/sys/types.h /usr/include/bits/types.h \
|
||||
/usr/include/bits/wordsize.h /usr/include/bits/typesizes.h \
|
||||
/usr/include/time.h /usr/include/endian.h /usr/include/bits/endian.h \
|
||||
/usr/include/sys/select.h /usr/include/bits/select.h \
|
||||
/usr/include/bits/sigset.h /usr/include/bits/time.h \
|
||||
/usr/include/sys/sysmacros.h /usr/include/bits/pthreadtypes.h \
|
||||
/usr/include/bits/sched.h /usr/include/alloca.h /usr/include/stdio.h \
|
||||
/usr/include/libio.h /usr/include/_G_config.h /usr/include/wchar.h \
|
||||
/usr/include/bits/wchar.h /usr/include/gconv.h \
|
||||
/usr/lib/gcc-lib/i486-linux/3.3.5/include/stdarg.h \
|
||||
/usr/include/bits/stdio_lim.h /usr/include/bits/sys_errlist.h \
|
||||
/usr/include/bits/stdio.h ../src/cmph_types.h
|
||||
|
||||
../src/cmph.h:
|
||||
|
||||
/usr/include/stdlib.h:
|
||||
|
||||
/usr/include/features.h:
|
||||
|
||||
/usr/include/sys/cdefs.h:
|
||||
|
||||
/usr/include/gnu/stubs.h:
|
||||
|
||||
/usr/lib/gcc-lib/i486-linux/3.3.5/include/stddef.h:
|
||||
|
||||
/usr/include/sys/types.h:
|
||||
|
||||
/usr/include/bits/types.h:
|
||||
|
||||
/usr/include/bits/wordsize.h:
|
||||
|
||||
/usr/include/bits/typesizes.h:
|
||||
|
||||
/usr/include/time.h:
|
||||
|
||||
/usr/include/endian.h:
|
||||
|
||||
/usr/include/bits/endian.h:
|
||||
|
||||
/usr/include/sys/select.h:
|
||||
|
||||
/usr/include/bits/select.h:
|
||||
|
||||
/usr/include/bits/sigset.h:
|
||||
|
||||
/usr/include/bits/time.h:
|
||||
|
||||
/usr/include/sys/sysmacros.h:
|
||||
|
||||
/usr/include/bits/pthreadtypes.h:
|
||||
|
||||
/usr/include/bits/sched.h:
|
||||
|
||||
/usr/include/alloca.h:
|
||||
|
||||
/usr/include/stdio.h:
|
||||
|
||||
/usr/include/libio.h:
|
||||
|
||||
/usr/include/_G_config.h:
|
||||
|
||||
/usr/include/wchar.h:
|
||||
|
||||
/usr/include/bits/wchar.h:
|
||||
|
||||
/usr/include/gconv.h:
|
||||
|
||||
/usr/lib/gcc-lib/i486-linux/3.3.5/include/stdarg.h:
|
||||
|
||||
/usr/include/bits/stdio_lim.h:
|
||||
|
||||
/usr/include/bits/sys_errlist.h:
|
||||
|
||||
/usr/include/bits/stdio.h:
|
||||
|
||||
../src/cmph_types.h:
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
noinst_PROGRAMS = vector_adapter_ex1 file_adapter_ex2
|
||||
|
||||
INCLUDES = -I../src/
|
||||
|
||||
vector_adapter_ex1_LDADD = ../src/libcmph.la
|
||||
vector_adapter_ex1_SOURCES = vector_adapter_ex1.c
|
||||
|
||||
file_adapter_ex2_LDADD = ../src/libcmph.la
|
||||
file_adapter_ex2_SOURCES = file_adapter_ex2.c
|
||||
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
#include <cmph.h>
|
||||
#include <stdio.h>
|
||||
|
||||
// Create minimal perfect hash function from in-disk keys using BMZ algorithm
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
//Open file with newline separated list of keys
|
||||
FILE * keys_fd = fopen("keys.txt", "r");
|
||||
cmph_t *hash = NULL;
|
||||
if (keys_fd == NULL)
|
||||
{
|
||||
fprintf(stderr, "File \"keys.txt\" not found\n");
|
||||
exit(1);
|
||||
}
|
||||
// Source of keys
|
||||
cmph_io_adapter_t *source = cmph_io_nlfile_adapter(keys_fd);
|
||||
|
||||
cmph_config_t *config = cmph_config_new(source);
|
||||
cmph_config_set_algo(config, CMPH_BMZ);
|
||||
hash = cmph_new(config);
|
||||
cmph_config_destroy(config);
|
||||
|
||||
//Find key
|
||||
const char *key = "jjjjjjjjjj";
|
||||
unsigned int id = cmph_search(hash, key, strlen(key));
|
||||
fprintf(stderr, "Id:%u\n", id);
|
||||
//Destroy hash
|
||||
cmph_destroy(hash);
|
||||
free(source);
|
||||
fclose(keys_fd);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
aaaaaaaaaa
|
||||
bbbbbbbbbb
|
||||
cccccccccc
|
||||
dddddddddd
|
||||
eeeeeeeeee
|
||||
ffffffffff
|
||||
gggggggggg
|
||||
hhhhhhhhhh
|
||||
iiiiiiiiii
|
||||
jjjjjjjjjj
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
#include <cmph.h>
|
||||
|
||||
// Create minimal perfect hash function from in-memory vector
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
// Creating a filled vector
|
||||
const char *vector[] = {"aaaaaaaaaa", "bbbbbbbbbb", "cccccccccc", "dddddddddd", "eeeeeeeeee",
|
||||
"ffffffffff", "gggggggggg", "hhhhhhhhhh", "iiiiiiiiii", "jjjjjjjjjj"};
|
||||
unsigned int nkeys = 10;
|
||||
// Source of keys
|
||||
cmph_io_adapter_t *source = cmph_io_vector_adapter(vector, nkeys);
|
||||
|
||||
//Create minimal perfect hash function using the default (chm) algorithm.
|
||||
cmph_config_t *config = cmph_config_new(source);
|
||||
cmph_t *hash = cmph_new(config);
|
||||
cmph_config_destroy(config);
|
||||
|
||||
//Find key
|
||||
const char *key = "jjjjjjjjjj";
|
||||
unsigned int id = cmph_search(hash, key, strlen(key));
|
||||
fprintf(stderr, "Id:%u\n", id);
|
||||
//Destroy hash
|
||||
cmph_destroy(hash);
|
||||
free(source);
|
||||
return 0;
|
||||
}
|
||||
29
src/cmph.c
29
src/cmph.c
|
|
@ -12,6 +12,8 @@
|
|||
|
||||
const char *cmph_names[] = { "bmz", "chm", NULL }; /* included -- Fabiano */
|
||||
|
||||
static cmph_uint32 position; // access position when data is a vector
|
||||
|
||||
static int key_nlfile_read(void *data, char **key, cmph_uint32 *keylen)
|
||||
{
|
||||
FILE *fd = (FILE *)data;
|
||||
|
|
@ -37,16 +39,34 @@ static int key_nlfile_read(void *data, char **key, cmph_uint32 *keylen)
|
|||
return *keylen;
|
||||
}
|
||||
|
||||
static int key_vector_read(void *data, char **key, cmph_uint32 *keylen)
|
||||
{
|
||||
char **keys = (char **)data;
|
||||
if (keys + position == NULL) return -1;
|
||||
*keylen = strlen(*(keys + position));
|
||||
*key = (char *)malloc(*keylen);
|
||||
strcpy(*key, *(keys + position));
|
||||
position ++;
|
||||
return *keylen;
|
||||
}
|
||||
|
||||
|
||||
static void key_nlfile_dispose(void *data, char *key, cmph_uint32 keylen)
|
||||
{
|
||||
free(key);
|
||||
}
|
||||
|
||||
static void key_nlfile_rewind(void *data)
|
||||
{
|
||||
FILE *fd = (FILE *)data;
|
||||
rewind(fd);
|
||||
}
|
||||
|
||||
static void key_vector_rewind(void *data)
|
||||
{
|
||||
position = 0;
|
||||
}
|
||||
|
||||
static cmph_uint32 count_nlfile_keys(FILE *fd)
|
||||
{
|
||||
cmph_uint32 count = 0;
|
||||
|
|
@ -89,7 +109,14 @@ cmph_io_adapter_t *cmph_io_nlnkfile_adapter(FILE * keys_fd, cmph_uint32 nkeys)
|
|||
|
||||
cmph_io_adapter_t *cmph_io_vector_adapter(const char ** vector, cmph_uint32 nkeys)
|
||||
{
|
||||
return NULL;
|
||||
cmph_io_adapter_t * key_source = malloc(sizeof(cmph_io_adapter_t));
|
||||
assert(key_source);
|
||||
key_source->data = (void *)vector;
|
||||
key_source->nkeys = nkeys;
|
||||
key_source->read = key_vector_read;
|
||||
key_source->dispose = key_nlfile_dispose;
|
||||
key_source->rewind = key_vector_rewind;
|
||||
return key_source;
|
||||
}
|
||||
|
||||
cmph_config_t *cmph_config_new(cmph_io_adapter_t *key_source)
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@ typedef struct
|
|||
/* please call free() in the created adapters */
|
||||
cmph_io_adapter_t *cmph_io_nlfile_adapter(FILE * keys_fd);
|
||||
cmph_io_adapter_t *cmph_io_nlnkfile_adapter(FILE * keys_fd, cmph_uint32 nkeys);
|
||||
/*cmph_io_adapter_t *cmph_io_vector_adapter(const char ** vector, cmph_uint32 nkeys);*/
|
||||
cmph_io_adapter_t *cmph_io_vector_adapter(const char ** vector, cmph_uint32 nkeys);
|
||||
|
||||
/** Hash configuration API **/
|
||||
cmph_config_t *cmph_config_new(cmph_io_adapter_t *key_source);
|
||||
|
|
|
|||
Loading…
Reference in New Issue