INSTALL revision 44d8e951
144d8e951SmrgInstallation Instructions 244d8e951Smrg************************* 344d8e951Smrg 444d8e951SmrgCopyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, 544d8e951Smrg2006, 2007, 2008 Free Software Foundation, Inc. 644d8e951Smrg 744d8e951Smrg This file is free documentation; the Free Software Foundation gives 844d8e951Smrgunlimited permission to copy, distribute and modify it. 944d8e951Smrg 1044d8e951SmrgBasic Installation 1144d8e951Smrg================== 1244d8e951Smrg 1344d8e951Smrg Briefly, the shell commands `./configure; make; make install' should 1444d8e951Smrgconfigure, build, and install this package. The following 1544d8e951Smrgmore-detailed instructions are generic; see the `README' file for 1644d8e951Smrginstructions specific to this package. 1744d8e951Smrg 1844d8e951Smrg The `configure' shell script attempts to guess correct values for 1944d8e951Smrgvarious system-dependent variables used during compilation. It uses 2044d8e951Smrgthose values to create a `Makefile' in each directory of the package. 2144d8e951SmrgIt may also create one or more `.h' files containing system-dependent 2244d8e951Smrgdefinitions. Finally, it creates a shell script `config.status' that 2344d8e951Smrgyou can run in the future to recreate the current configuration, and a 2444d8e951Smrgfile `config.log' containing compiler output (useful mainly for 2544d8e951Smrgdebugging `configure'). 2644d8e951Smrg 2744d8e951Smrg It can also use an optional file (typically called `config.cache' 2844d8e951Smrgand enabled with `--cache-file=config.cache' or simply `-C') that saves 2944d8e951Smrgthe results of its tests to speed up reconfiguring. Caching is 3044d8e951Smrgdisabled by default to prevent problems with accidental use of stale 3144d8e951Smrgcache files. 3244d8e951Smrg 3344d8e951Smrg If you need to do unusual things to compile the package, please try 3444d8e951Smrgto figure out how `configure' could check whether to do them, and mail 3544d8e951Smrgdiffs or instructions to the address given in the `README' so they can 3644d8e951Smrgbe considered for the next release. If you are using the cache, and at 3744d8e951Smrgsome point `config.cache' contains results you don't want to keep, you 3844d8e951Smrgmay remove or edit it. 3944d8e951Smrg 4044d8e951Smrg The file `configure.ac' (or `configure.in') is used to create 4144d8e951Smrg`configure' by a program called `autoconf'. You need `configure.ac' if 4244d8e951Smrgyou want to change it or regenerate `configure' using a newer version 4344d8e951Smrgof `autoconf'. 4444d8e951Smrg 4544d8e951SmrgThe simplest way to compile this package is: 4644d8e951Smrg 4744d8e951Smrg 1. `cd' to the directory containing the package's source code and type 4844d8e951Smrg `./configure' to configure the package for your system. 4944d8e951Smrg 5044d8e951Smrg Running `configure' might take a while. While running, it prints 5144d8e951Smrg some messages telling which features it is checking for. 5244d8e951Smrg 5344d8e951Smrg 2. Type `make' to compile the package. 5444d8e951Smrg 5544d8e951Smrg 3. Optionally, type `make check' to run any self-tests that come with 5644d8e951Smrg the package. 5744d8e951Smrg 5844d8e951Smrg 4. Type `make install' to install the programs and any data files and 5944d8e951Smrg documentation. 6044d8e951Smrg 6144d8e951Smrg 5. You can remove the program binaries and object files from the 6244d8e951Smrg source code directory by typing `make clean'. To also remove the 6344d8e951Smrg files that `configure' created (so you can compile the package for 6444d8e951Smrg a different kind of computer), type `make distclean'. There is 6544d8e951Smrg also a `make maintainer-clean' target, but that is intended mainly 6644d8e951Smrg for the package's developers. If you use it, you may have to get 6744d8e951Smrg all sorts of other programs in order to regenerate files that came 6844d8e951Smrg with the distribution. 6944d8e951Smrg 7044d8e951Smrg 6. Often, you can also type `make uninstall' to remove the installed 7144d8e951Smrg files again. 7244d8e951Smrg 7344d8e951SmrgCompilers and Options 7444d8e951Smrg===================== 7544d8e951Smrg 7644d8e951Smrg Some systems require unusual options for compilation or linking that 7744d8e951Smrgthe `configure' script does not know about. Run `./configure --help' 7844d8e951Smrgfor details on some of the pertinent environment variables. 7944d8e951Smrg 8044d8e951Smrg You can give `configure' initial values for configuration parameters 8144d8e951Smrgby setting variables in the command line or in the environment. Here 8244d8e951Smrgis an example: 8344d8e951Smrg 8444d8e951Smrg ./configure CC=c99 CFLAGS=-g LIBS=-lposix 8544d8e951Smrg 8644d8e951Smrg *Note Defining Variables::, for more details. 8744d8e951Smrg 8844d8e951SmrgCompiling For Multiple Architectures 8944d8e951Smrg==================================== 9044d8e951Smrg 9144d8e951Smrg You can compile the package for more than one kind of computer at the 9244d8e951Smrgsame time, by placing the object files for each architecture in their 9344d8e951Smrgown directory. To do this, you can use GNU `make'. `cd' to the 9444d8e951Smrgdirectory where you want the object files and executables to go and run 9544d8e951Smrgthe `configure' script. `configure' automatically checks for the 9644d8e951Smrgsource code in the directory that `configure' is in and in `..'. 9744d8e951Smrg 9844d8e951Smrg With a non-GNU `make', it is safer to compile the package for one 9944d8e951Smrgarchitecture at a time in the source code directory. After you have 10044d8e951Smrginstalled the package for one architecture, use `make distclean' before 10144d8e951Smrgreconfiguring for another architecture. 10244d8e951Smrg 10344d8e951Smrg On MacOS X 10.5 and later systems, you can create libraries and 10444d8e951Smrgexecutables that work on multiple system types--known as "fat" or 10544d8e951Smrg"universal" binaries--by specifying multiple `-arch' options to the 10644d8e951Smrgcompiler but only a single `-arch' option to the preprocessor. Like 10744d8e951Smrgthis: 10844d8e951Smrg 10944d8e951Smrg ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ 11044d8e951Smrg CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ 11144d8e951Smrg CPP="gcc -E" CXXCPP="g++ -E" 11244d8e951Smrg 11344d8e951Smrg This is not guaranteed to produce working output in all cases, you 11444d8e951Smrgmay have to build one architecture at a time and combine the results 11544d8e951Smrgusing the `lipo' tool if you have problems. 11644d8e951Smrg 11744d8e951SmrgInstallation Names 11844d8e951Smrg================== 11944d8e951Smrg 12044d8e951Smrg By default, `make install' installs the package's commands under 12144d8e951Smrg`/usr/local/bin', include files under `/usr/local/include', etc. You 12244d8e951Smrgcan specify an installation prefix other than `/usr/local' by giving 12344d8e951Smrg`configure' the option `--prefix=PREFIX'. 12444d8e951Smrg 12544d8e951Smrg You can specify separate installation prefixes for 12644d8e951Smrgarchitecture-specific files and architecture-independent files. If you 12744d8e951Smrgpass the option `--exec-prefix=PREFIX' to `configure', the package uses 12844d8e951SmrgPREFIX as the prefix for installing programs and libraries. 12944d8e951SmrgDocumentation and other data files still use the regular prefix. 13044d8e951Smrg 13144d8e951Smrg In addition, if you use an unusual directory layout you can give 13244d8e951Smrgoptions like `--bindir=DIR' to specify different values for particular 13344d8e951Smrgkinds of files. Run `configure --help' for a list of the directories 13444d8e951Smrgyou can set and what kinds of files go in them. 13544d8e951Smrg 13644d8e951Smrg If the package supports it, you can cause programs to be installed 13744d8e951Smrgwith an extra prefix or suffix on their names by giving `configure' the 13844d8e951Smrgoption `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. 13944d8e951Smrg 14044d8e951SmrgOptional Features 14144d8e951Smrg================= 14244d8e951Smrg 14344d8e951Smrg Some packages pay attention to `--enable-FEATURE' options to 14444d8e951Smrg`configure', where FEATURE indicates an optional part of the package. 14544d8e951SmrgThey may also pay attention to `--with-PACKAGE' options, where PACKAGE 14644d8e951Smrgis something like `gnu-as' or `x' (for the X Window System). The 14744d8e951Smrg`README' should mention any `--enable-' and `--with-' options that the 14844d8e951Smrgpackage recognizes. 14944d8e951Smrg 15044d8e951Smrg For packages that use the X Window System, `configure' can usually 15144d8e951Smrgfind the X include and library files automatically, but if it doesn't, 15244d8e951Smrgyou can use the `configure' options `--x-includes=DIR' and 15344d8e951Smrg`--x-libraries=DIR' to specify their locations. 15444d8e951Smrg 15544d8e951SmrgParticular systems 15644d8e951Smrg================== 15744d8e951Smrg 15844d8e951Smrg On HP-UX, the default C compiler is not ANSI C compatible. If GNU 15944d8e951SmrgCC is not installed, it is recommended to use the following options in 16044d8e951Smrgorder to use an ANSI C compiler: 16144d8e951Smrg 16244d8e951Smrg ./configure CC="cc -Ae" 16344d8e951Smrg 16444d8e951Smrgand if that doesn't work, install pre-built binaries of GCC for HP-UX. 16544d8e951Smrg 16644d8e951Smrg On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot 16744d8e951Smrgparse its `<wchar.h>' header file. The option `-nodtk' can be used as 16844d8e951Smrga workaround. If GNU CC is not installed, it is therefore recommended 16944d8e951Smrgto try 17044d8e951Smrg 17144d8e951Smrg ./configure CC="cc" 17244d8e951Smrg 17344d8e951Smrgand if that doesn't work, try 17444d8e951Smrg 17544d8e951Smrg ./configure CC="cc -nodtk" 17644d8e951Smrg 17744d8e951SmrgSpecifying the System Type 17844d8e951Smrg========================== 17944d8e951Smrg 18044d8e951Smrg There may be some features `configure' cannot figure out 18144d8e951Smrgautomatically, but needs to determine by the type of machine the package 18244d8e951Smrgwill run on. Usually, assuming the package is built to be run on the 18344d8e951Smrg_same_ architectures, `configure' can figure that out, but if it prints 18444d8e951Smrga message saying it cannot guess the machine type, give it the 18544d8e951Smrg`--build=TYPE' option. TYPE can either be a short name for the system 18644d8e951Smrgtype, such as `sun4', or a canonical name which has the form: 18744d8e951Smrg 18844d8e951Smrg CPU-COMPANY-SYSTEM 18944d8e951Smrg 19044d8e951Smrgwhere SYSTEM can have one of these forms: 19144d8e951Smrg 19244d8e951Smrg OS KERNEL-OS 19344d8e951Smrg 19444d8e951Smrg See the file `config.sub' for the possible values of each field. If 19544d8e951Smrg`config.sub' isn't included in this package, then this package doesn't 19644d8e951Smrgneed to know the machine type. 19744d8e951Smrg 19844d8e951Smrg If you are _building_ compiler tools for cross-compiling, you should 19944d8e951Smrguse the option `--target=TYPE' to select the type of system they will 20044d8e951Smrgproduce code for. 20144d8e951Smrg 20244d8e951Smrg If you want to _use_ a cross compiler, that generates code for a 20344d8e951Smrgplatform different from the build platform, you should specify the 20444d8e951Smrg"host" platform (i.e., that on which the generated programs will 20544d8e951Smrgeventually be run) with `--host=TYPE'. 20644d8e951Smrg 20744d8e951SmrgSharing Defaults 20844d8e951Smrg================ 20944d8e951Smrg 21044d8e951Smrg If you want to set default values for `configure' scripts to share, 21144d8e951Smrgyou can create a site shell script called `config.site' that gives 21244d8e951Smrgdefault values for variables like `CC', `cache_file', and `prefix'. 21344d8e951Smrg`configure' looks for `PREFIX/share/config.site' if it exists, then 21444d8e951Smrg`PREFIX/etc/config.site' if it exists. Or, you can set the 21544d8e951Smrg`CONFIG_SITE' environment variable to the location of the site script. 21644d8e951SmrgA warning: not all `configure' scripts look for a site script. 21744d8e951Smrg 21844d8e951SmrgDefining Variables 21944d8e951Smrg================== 22044d8e951Smrg 22144d8e951Smrg Variables not defined in a site shell script can be set in the 22244d8e951Smrgenvironment passed to `configure'. However, some packages may run 22344d8e951Smrgconfigure again during the build, and the customized values of these 22444d8e951Smrgvariables may be lost. In order to avoid this problem, you should set 22544d8e951Smrgthem in the `configure' command line, using `VAR=value'. For example: 22644d8e951Smrg 22744d8e951Smrg ./configure CC=/usr/local2/bin/gcc 22844d8e951Smrg 22944d8e951Smrgcauses the specified `gcc' to be used as the C compiler (unless it is 23044d8e951Smrgoverridden in the site shell script). 23144d8e951Smrg 23244d8e951SmrgUnfortunately, this technique does not work for `CONFIG_SHELL' due to 23344d8e951Smrgan Autoconf bug. Until the bug is fixed you can use this workaround: 23444d8e951Smrg 23544d8e951Smrg CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash 23644d8e951Smrg 23744d8e951Smrg`configure' Invocation 23844d8e951Smrg====================== 23944d8e951Smrg 24044d8e951Smrg `configure' recognizes the following options to control how it 24144d8e951Smrgoperates. 24244d8e951Smrg 24344d8e951Smrg`--help' 24444d8e951Smrg`-h' 24544d8e951Smrg Print a summary of all of the options to `configure', and exit. 24644d8e951Smrg 24744d8e951Smrg`--help=short' 24844d8e951Smrg`--help=recursive' 24944d8e951Smrg Print a summary of the options unique to this package's 25044d8e951Smrg `configure', and exit. The `short' variant lists options used 25144d8e951Smrg only in the top level, while the `recursive' variant lists options 25244d8e951Smrg also present in any nested packages. 25344d8e951Smrg 25444d8e951Smrg`--version' 25544d8e951Smrg`-V' 25644d8e951Smrg Print the version of Autoconf used to generate the `configure' 25744d8e951Smrg script, and exit. 25844d8e951Smrg 25944d8e951Smrg`--cache-file=FILE' 26044d8e951Smrg Enable the cache: use and save the results of the tests in FILE, 26144d8e951Smrg traditionally `config.cache'. FILE defaults to `/dev/null' to 26244d8e951Smrg disable caching. 26344d8e951Smrg 26444d8e951Smrg`--config-cache' 26544d8e951Smrg`-C' 26644d8e951Smrg Alias for `--cache-file=config.cache'. 26744d8e951Smrg 26844d8e951Smrg`--quiet' 26944d8e951Smrg`--silent' 27044d8e951Smrg`-q' 27144d8e951Smrg Do not print messages saying which checks are being made. To 27244d8e951Smrg suppress all normal output, redirect it to `/dev/null' (any error 27344d8e951Smrg messages will still be shown). 27444d8e951Smrg 27544d8e951Smrg`--srcdir=DIR' 27644d8e951Smrg Look for the package's source code in directory DIR. Usually 27744d8e951Smrg `configure' can determine that directory automatically. 27844d8e951Smrg 27944d8e951Smrg`--prefix=DIR' 28044d8e951Smrg Use DIR as the installation prefix. *Note Installation Names:: 28144d8e951Smrg for more details, including other options available for fine-tuning 28244d8e951Smrg the installation locations. 28344d8e951Smrg 28444d8e951Smrg`--no-create' 28544d8e951Smrg`-n' 28644d8e951Smrg Run the configure checks, but stop before creating any output 28744d8e951Smrg files. 28844d8e951Smrg 28944d8e951Smrg`configure' also accepts some other, not widely useful, options. Run 29044d8e951Smrg`configure --help' for more details. 29144d8e951Smrg 292