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Installation Instructions |
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************************* |
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Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, |
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2006 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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Briefly, the shell commands `./configure; make; make install |
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configure, build, and install this package. The following |
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more-detailed instructions are generic; see the `README |
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instructions specific to this package. |
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The `configure |
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various system-dependent variables used during compilation. It uses |
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those values to create a `Makefile |
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It may also create one or more `.h |
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definitions. Finally, it creates a shell script `config.status |
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you can run in the future to recreate the current configuration, and a |
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file `config.log |
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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 |
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the results of its tests to speed up reconfiguring. Caching is |
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disabled by default to prevent problems with accidental use of stale |
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cache files. |
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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 |
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diffs or instructions to the address given in the `README |
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be considered for the next release. If you are using the cache, and at |
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some point `config.cache |
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may remove or edit it. |
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The file `configure.ac |
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`configure |
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you want to change it or regenerate `configure |
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of `autoconf |
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The simplest way to compile this package is: |
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1. `cd |
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`./configure |
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Running `configure |
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some messages telling which features it is checking for. |
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2. Type `make |
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3. Optionally, type `make check |
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the package. |
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4. Type `make install |
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documentation. |
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5. You can remove the program binaries and object files from the |
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source code directory by typing `make clean |
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files that `configure |
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a different kind of computer), type `make distclean |
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also a `make maintainer-clean |
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for the package |
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all sorts of other programs in order to regenerate files that came |
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with the distribution. |
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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 |
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details on some of the pertinent environment variables. |
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You can give `configure |
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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=c99 CFLAGS=-g LIBS=-lposix |
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*Note Defining Variables::, for more details. |
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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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same time, by placing the object files for each architecture in their |
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own directory. To do this, you can use GNU `make |
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directory where you want the object files and executables to go and run |
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the `configure |
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source code in the directory that `configure |
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With a non-GNU `make |
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architecture at a time in the source code directory. After you have |
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installed the package for one architecture, use `make distclean |
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reconfiguring for another architecture. |
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Installation Names |
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================== |
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By default, `make install |
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`/usr/local/bin |
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can specify an installation prefix other than `/usr/local |
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`configure |
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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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pass the option `--exec-prefix=PREFIX |
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PREFIX as the prefix for installing programs and libraries. |
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Documentation and other data files still use the regular prefix. |
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In addition, if you use an unusual directory layout you can give |
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options like `--bindir=DIR |
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kinds of files. Run `configure --help |
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you can set and what kinds of files go in them. |
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If the package supports it, you can cause programs to be installed |
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with an extra prefix or suffix on their names by giving `configure |
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option `--program-prefix=PREFIX |
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Optional Features |
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================= |
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Some packages pay attention to `--enable-FEATURE |
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`configure |
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They may also pay attention to `--with-PACKAGE |
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is something like `gnu-as |
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`README |
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package recognizes. |
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For packages that use the X Window System, `configure |
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find the X include and library files automatically, but if it doesn |
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you can use the `configure |
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`--x-libraries=DIR |
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Specifying the System Type |
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========================== |
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There may be some features `configure |
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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 |
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message saying it cannot guess the machine type, give it the |
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`--build=TYPE |
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type, such as `sun4 |
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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 |
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`config.sub |
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need to know the machine type. |
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If you are _building_ compiler tools for cross-compiling, you should |
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use the option `--target=TYPE |
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produce code for. |
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If you want to _use_ a cross compiler, that generates code for a |
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platform different from the build platform, you should specify the |
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"host" platform (i.e., that on which the generated programs will |
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eventually be run) with `--host=TYPE |
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Sharing Defaults |
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================ |
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If you want to set default values for `configure |
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can create a site shell script called `config.site |
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values for variables like `CC |
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`configure |
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`PREFIX/etc/config.site |
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`CONFIG_SITE |
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A warning: not all `configure |
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Defining Variables |
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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 |
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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 |
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./configure CC=/usr/local2/bin/gcc |
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causes the specified `gcc |
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overridden in the site shell script). |
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Unfortunately, this technique does not work for `CONFIG_SHELL |
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an Autoconf bug. Until the bug is fixed you can use this workaround: |
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CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash |
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`configure |
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====================== |
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`configure |
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`--help |
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`-h |
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Print a summary of the options to `configure |
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`--version |
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`-V |
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Print the version of Autoconf used to generate the `configure |
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script, and exit. |
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`--cache-file=FILE |
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Enable the cache: use and save the results of the tests in FILE, |
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traditionally `config.cache |
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disable caching. |
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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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`--quiet |
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`--silent |
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`-q |
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Do not print messages saying which checks are being made. To |
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suppress all normal output, redirect it to `/dev/null |
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messages will still be shown). |
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`--srcdir=DIR |
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Look for the package |
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`configure |
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`configure |
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`configure --help |
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