diff options
Diffstat (limited to 'INSTALL')
| -rw-r--r-- | INSTALL | 131 |
1 files changed, 42 insertions, 89 deletions
@@ -1,9 +1,3 @@ -Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002 Free Software -Foundation, Inc. - - This file is free documentation; the Free Software Foundation gives -unlimited permission to copy, distribute and modify it. - Basic Installation ================== @@ -14,27 +8,20 @@ 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, and a -file `config.log' containing compiler output (useful mainly for -debugging `configure'). - - It can also use an optional file (typically called `config.cache' -and enabled with `--cache-file=config.cache' or simply `-C') that saves -the results of its tests to speed up reconfiguring. (Caching is -disabled by default to prevent problems with accidental use of stale -cache files.) +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 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. +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.ac' (or `configure.in') is used to create -`configure' by a program called `autoconf'. You only need -`configure.ac' if you want to change it or regenerate `configure' using -a newer version of `autoconf'. + 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: @@ -68,16 +55,14 @@ Compilers and Options ===================== Some systems require unusual options for compilation or linking that -the `configure' script does not know about. Run `./configure --help' -for details on some of the pertinent environment variables. - - You can give `configure' initial values for configuration parameters -by setting variables in the command line or in the environment. Here -is an example: +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 - ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix - - *Note Defining Variables::, for more details. +Or on systems that have the `env' program, you can do it like this: + env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure Compiling For Multiple Architectures ==================================== @@ -90,11 +75,11 @@ 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 `..'. - If you have to use a `make' that does not support the `VPATH' -variable, you have to compile the package for one architecture at a -time in the source code directory. After you have installed the -package for one architecture, use `make distclean' before reconfiguring -for another architecture. + 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 +in the source code directory. After you have installed the package for +one architecture, use `make distclean' before reconfiguring for another +architecture. Installation Names ================== @@ -137,32 +122,22 @@ you can use the `configure' options `--x-includes=DIR' and Specifying the System Type ========================== - There may be some features `configure' cannot figure out -automatically, but needs to determine by the type of machine the package -will run on. Usually, assuming the package is built to be run on the -_same_ architectures, `configure' can figure that out, but if it prints -a message saying it cannot guess the machine type, give it the -`--build=TYPE' option. TYPE can either be a short name for the system -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: CPU-COMPANY-SYSTEM -where SYSTEM can have one of these forms: - - OS KERNEL-OS - - See the file `config.sub' for the possible values of each field. If +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 machine type. +need to know the host type. - If you are _building_ compiler tools for cross-compiling, you should + 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. - - 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. Sharing Defaults ================ @@ -175,43 +150,19 @@ default values for variables like `CC', `cache_file', and `prefix'. `CONFIG_SITE' environment variable to the location of the site script. A warning: not all `configure' scripts look for a site script. -Defining Variables +Operation Controls ================== - Variables not defined in a site shell script can be set in the -environment passed to `configure'. However, some packages may run -configure again during the build, and the customized values of these -variables may be lost. In order to avoid this problem, you should set -them in the `configure' command line, using `VAR=value'. For example: - - ./configure CC=/usr/local2/bin/gcc - -will cause the specified gcc to be used as the C compiler (unless it is -overridden in the site shell script). - -`configure' Invocation -====================== - `configure' recognizes the following options to control how it operates. -`--help' -`-h' - Print a summary of the options to `configure', and exit. - -`--version' -`-V' - Print the version of Autoconf used to generate the `configure' - script, and exit. - `--cache-file=FILE' - Enable the cache: use and save the results of the tests in FILE, - traditionally `config.cache'. FILE defaults to `/dev/null' to - disable caching. + 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'. -`--config-cache' -`-C' - Alias for `--cache-file=config.cache'. +`--help' + Print a summary of the options to `configure', and exit. `--quiet' `--silent' @@ -224,6 +175,8 @@ operates. Look for the package's source code in directory DIR. Usually `configure' can determine that directory automatically. -`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' + script, and exit. +`configure' also accepts some other, not widely useful, options. |