INSTALL revision d5d8cc55
1d5d8cc55SmrgInstallation Instructions 2d5d8cc55Smrg************************* 3d5d8cc55Smrg 4d5d8cc55SmrgCopyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, 5d5d8cc55Smrg2006, 2007, 2008 Free Software Foundation, Inc. 6d5d8cc55Smrg 7d5d8cc55Smrg This file is free documentation; the Free Software Foundation gives 8d5d8cc55Smrgunlimited permission to copy, distribute and modify it. 9d5d8cc55Smrg 10d5d8cc55SmrgBasic Installation 11d5d8cc55Smrg================== 12d5d8cc55Smrg 13d5d8cc55Smrg Briefly, the shell commands `./configure; make; make install' should 14d5d8cc55Smrgconfigure, build, and install this package. The following 15d5d8cc55Smrgmore-detailed instructions are generic; see the `README' file for 16d5d8cc55Smrginstructions specific to this package. 17d5d8cc55Smrg 18d5d8cc55Smrg The `configure' shell script attempts to guess correct values for 19d5d8cc55Smrgvarious system-dependent variables used during compilation. It uses 20d5d8cc55Smrgthose values to create a `Makefile' in each directory of the package. 21d5d8cc55SmrgIt may also create one or more `.h' files containing system-dependent 22d5d8cc55Smrgdefinitions. Finally, it creates a shell script `config.status' that 23d5d8cc55Smrgyou can run in the future to recreate the current configuration, and a 24d5d8cc55Smrgfile `config.log' containing compiler output (useful mainly for 25d5d8cc55Smrgdebugging `configure'). 26d5d8cc55Smrg 27d5d8cc55Smrg It can also use an optional file (typically called `config.cache' 28d5d8cc55Smrgand enabled with `--cache-file=config.cache' or simply `-C') that saves 29d5d8cc55Smrgthe results of its tests to speed up reconfiguring. Caching is 30d5d8cc55Smrgdisabled by default to prevent problems with accidental use of stale 31d5d8cc55Smrgcache files. 32d5d8cc55Smrg 33d5d8cc55Smrg If you need to do unusual things to compile the package, please try 34d5d8cc55Smrgto figure out how `configure' could check whether to do them, and mail 35d5d8cc55Smrgdiffs or instructions to the address given in the `README' so they can 36d5d8cc55Smrgbe considered for the next release. If you are using the cache, and at 37d5d8cc55Smrgsome point `config.cache' contains results you don't want to keep, you 38d5d8cc55Smrgmay remove or edit it. 39d5d8cc55Smrg 40d5d8cc55Smrg The file `configure.ac' (or `configure.in') is used to create 41d5d8cc55Smrg`configure' by a program called `autoconf'. You need `configure.ac' if 42d5d8cc55Smrgyou want to change it or regenerate `configure' using a newer version 43d5d8cc55Smrgof `autoconf'. 44d5d8cc55Smrg 45d5d8cc55SmrgThe simplest way to compile this package is: 46d5d8cc55Smrg 47d5d8cc55Smrg 1. `cd' to the directory containing the package's source code and type 48d5d8cc55Smrg `./configure' to configure the package for your system. 49d5d8cc55Smrg 50d5d8cc55Smrg Running `configure' might take a while. While running, it prints 51d5d8cc55Smrg some messages telling which features it is checking for. 52d5d8cc55Smrg 53d5d8cc55Smrg 2. Type `make' to compile the package. 54d5d8cc55Smrg 55d5d8cc55Smrg 3. Optionally, type `make check' to run any self-tests that come with 56d5d8cc55Smrg the package. 57d5d8cc55Smrg 58d5d8cc55Smrg 4. Type `make install' to install the programs and any data files and 59d5d8cc55Smrg documentation. 60d5d8cc55Smrg 61d5d8cc55Smrg 5. You can remove the program binaries and object files from the 62d5d8cc55Smrg source code directory by typing `make clean'. To also remove the 63d5d8cc55Smrg files that `configure' created (so you can compile the package for 64d5d8cc55Smrg a different kind of computer), type `make distclean'. There is 65d5d8cc55Smrg also a `make maintainer-clean' target, but that is intended mainly 66d5d8cc55Smrg for the package's developers. If you use it, you may have to get 67d5d8cc55Smrg all sorts of other programs in order to regenerate files that came 68d5d8cc55Smrg with the distribution. 69d5d8cc55Smrg 70d5d8cc55Smrg 6. Often, you can also type `make uninstall' to remove the installed 71d5d8cc55Smrg files again. 72d5d8cc55Smrg 73d5d8cc55SmrgCompilers and Options 74d5d8cc55Smrg===================== 75d5d8cc55Smrg 76d5d8cc55Smrg Some systems require unusual options for compilation or linking that 77d5d8cc55Smrgthe `configure' script does not know about. Run `./configure --help' 78d5d8cc55Smrgfor details on some of the pertinent environment variables. 79d5d8cc55Smrg 80d5d8cc55Smrg You can give `configure' initial values for configuration parameters 81d5d8cc55Smrgby setting variables in the command line or in the environment. Here 82d5d8cc55Smrgis an example: 83d5d8cc55Smrg 84d5d8cc55Smrg ./configure CC=c99 CFLAGS=-g LIBS=-lposix 85d5d8cc55Smrg 86d5d8cc55Smrg *Note Defining Variables::, for more details. 87d5d8cc55Smrg 88d5d8cc55SmrgCompiling For Multiple Architectures 89d5d8cc55Smrg==================================== 90d5d8cc55Smrg 91d5d8cc55Smrg You can compile the package for more than one kind of computer at the 92d5d8cc55Smrgsame time, by placing the object files for each architecture in their 93d5d8cc55Smrgown directory. To do this, you can use GNU `make'. `cd' to the 94d5d8cc55Smrgdirectory where you want the object files and executables to go and run 95d5d8cc55Smrgthe `configure' script. `configure' automatically checks for the 96d5d8cc55Smrgsource code in the directory that `configure' is in and in `..'. 97d5d8cc55Smrg 98d5d8cc55Smrg With a non-GNU `make', it is safer to compile the package for one 99d5d8cc55Smrgarchitecture at a time in the source code directory. After you have 100d5d8cc55Smrginstalled the package for one architecture, use `make distclean' before 101d5d8cc55Smrgreconfiguring for another architecture. 102d5d8cc55Smrg 103d5d8cc55Smrg On MacOS X 10.5 and later systems, you can create libraries and 104d5d8cc55Smrgexecutables that work on multiple system types--known as "fat" or 105d5d8cc55Smrg"universal" binaries--by specifying multiple `-arch' options to the 106d5d8cc55Smrgcompiler but only a single `-arch' option to the preprocessor. Like 107d5d8cc55Smrgthis: 108d5d8cc55Smrg 109d5d8cc55Smrg ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ 110d5d8cc55Smrg CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ 111d5d8cc55Smrg CPP="gcc -E" CXXCPP="g++ -E" 112d5d8cc55Smrg 113d5d8cc55Smrg This is not guaranteed to produce working output in all cases, you 114d5d8cc55Smrgmay have to build one architecture at a time and combine the results 115d5d8cc55Smrgusing the `lipo' tool if you have problems. 116d5d8cc55Smrg 117d5d8cc55SmrgInstallation Names 118d5d8cc55Smrg================== 119d5d8cc55Smrg 120d5d8cc55Smrg By default, `make install' installs the package's commands under 121d5d8cc55Smrg`/usr/local/bin', include files under `/usr/local/include', etc. You 122d5d8cc55Smrgcan specify an installation prefix other than `/usr/local' by giving 123d5d8cc55Smrg`configure' the option `--prefix=PREFIX'. 124d5d8cc55Smrg 125d5d8cc55Smrg You can specify separate installation prefixes for 126d5d8cc55Smrgarchitecture-specific files and architecture-independent files. If you 127d5d8cc55Smrgpass the option `--exec-prefix=PREFIX' to `configure', the package uses 128d5d8cc55SmrgPREFIX as the prefix for installing programs and libraries. 129d5d8cc55SmrgDocumentation and other data files still use the regular prefix. 130d5d8cc55Smrg 131d5d8cc55Smrg In addition, if you use an unusual directory layout you can give 132d5d8cc55Smrgoptions like `--bindir=DIR' to specify different values for particular 133d5d8cc55Smrgkinds of files. Run `configure --help' for a list of the directories 134d5d8cc55Smrgyou can set and what kinds of files go in them. 135d5d8cc55Smrg 136d5d8cc55Smrg If the package supports it, you can cause programs to be installed 137d5d8cc55Smrgwith an extra prefix or suffix on their names by giving `configure' the 138d5d8cc55Smrgoption `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. 139d5d8cc55Smrg 140d5d8cc55SmrgOptional Features 141d5d8cc55Smrg================= 142d5d8cc55Smrg 143d5d8cc55Smrg Some packages pay attention to `--enable-FEATURE' options to 144d5d8cc55Smrg`configure', where FEATURE indicates an optional part of the package. 145d5d8cc55SmrgThey may also pay attention to `--with-PACKAGE' options, where PACKAGE 146d5d8cc55Smrgis something like `gnu-as' or `x' (for the X Window System). The 147d5d8cc55Smrg`README' should mention any `--enable-' and `--with-' options that the 148d5d8cc55Smrgpackage recognizes. 149d5d8cc55Smrg 150d5d8cc55Smrg For packages that use the X Window System, `configure' can usually 151d5d8cc55Smrgfind the X include and library files automatically, but if it doesn't, 152d5d8cc55Smrgyou can use the `configure' options `--x-includes=DIR' and 153d5d8cc55Smrg`--x-libraries=DIR' to specify their locations. 154d5d8cc55Smrg 155d5d8cc55SmrgParticular systems 156d5d8cc55Smrg================== 157d5d8cc55Smrg 158d5d8cc55Smrg On HP-UX, the default C compiler is not ANSI C compatible. If GNU 159d5d8cc55SmrgCC is not installed, it is recommended to use the following options in 160d5d8cc55Smrgorder to use an ANSI C compiler: 161d5d8cc55Smrg 162d5d8cc55Smrg ./configure CC="cc -Ae" 163d5d8cc55Smrg 164d5d8cc55Smrgand if that doesn't work, install pre-built binaries of GCC for HP-UX. 165d5d8cc55Smrg 166d5d8cc55Smrg On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot 167d5d8cc55Smrgparse its `<wchar.h>' header file. The option `-nodtk' can be used as 168d5d8cc55Smrga workaround. If GNU CC is not installed, it is therefore recommended 169d5d8cc55Smrgto try 170d5d8cc55Smrg 171d5d8cc55Smrg ./configure CC="cc" 172d5d8cc55Smrg 173d5d8cc55Smrgand if that doesn't work, try 174d5d8cc55Smrg 175d5d8cc55Smrg ./configure CC="cc -nodtk" 176d5d8cc55Smrg 177d5d8cc55SmrgSpecifying the System Type 178d5d8cc55Smrg========================== 179d5d8cc55Smrg 180d5d8cc55Smrg There may be some features `configure' cannot figure out 181d5d8cc55Smrgautomatically, but needs to determine by the type of machine the package 182d5d8cc55Smrgwill run on. Usually, assuming the package is built to be run on the 183d5d8cc55Smrg_same_ architectures, `configure' can figure that out, but if it prints 184d5d8cc55Smrga message saying it cannot guess the machine type, give it the 185d5d8cc55Smrg`--build=TYPE' option. TYPE can either be a short name for the system 186d5d8cc55Smrgtype, such as `sun4', or a canonical name which has the form: 187d5d8cc55Smrg 188d5d8cc55Smrg CPU-COMPANY-SYSTEM 189d5d8cc55Smrg 190d5d8cc55Smrgwhere SYSTEM can have one of these forms: 191d5d8cc55Smrg 192d5d8cc55Smrg OS KERNEL-OS 193d5d8cc55Smrg 194d5d8cc55Smrg See the file `config.sub' for the possible values of each field. If 195d5d8cc55Smrg`config.sub' isn't included in this package, then this package doesn't 196d5d8cc55Smrgneed to know the machine type. 197d5d8cc55Smrg 198d5d8cc55Smrg If you are _building_ compiler tools for cross-compiling, you should 199d5d8cc55Smrguse the option `--target=TYPE' to select the type of system they will 200d5d8cc55Smrgproduce code for. 201d5d8cc55Smrg 202d5d8cc55Smrg If you want to _use_ a cross compiler, that generates code for a 203d5d8cc55Smrgplatform different from the build platform, you should specify the 204d5d8cc55Smrg"host" platform (i.e., that on which the generated programs will 205d5d8cc55Smrgeventually be run) with `--host=TYPE'. 206d5d8cc55Smrg 207d5d8cc55SmrgSharing Defaults 208d5d8cc55Smrg================ 209d5d8cc55Smrg 210d5d8cc55Smrg If you want to set default values for `configure' scripts to share, 211d5d8cc55Smrgyou can create a site shell script called `config.site' that gives 212d5d8cc55Smrgdefault values for variables like `CC', `cache_file', and `prefix'. 213d5d8cc55Smrg`configure' looks for `PREFIX/share/config.site' if it exists, then 214d5d8cc55Smrg`PREFIX/etc/config.site' if it exists. Or, you can set the 215d5d8cc55Smrg`CONFIG_SITE' environment variable to the location of the site script. 216d5d8cc55SmrgA warning: not all `configure' scripts look for a site script. 217d5d8cc55Smrg 218d5d8cc55SmrgDefining Variables 219d5d8cc55Smrg================== 220d5d8cc55Smrg 221d5d8cc55Smrg Variables not defined in a site shell script can be set in the 222d5d8cc55Smrgenvironment passed to `configure'. However, some packages may run 223d5d8cc55Smrgconfigure again during the build, and the customized values of these 224d5d8cc55Smrgvariables may be lost. In order to avoid this problem, you should set 225d5d8cc55Smrgthem in the `configure' command line, using `VAR=value'. For example: 226d5d8cc55Smrg 227d5d8cc55Smrg ./configure CC=/usr/local2/bin/gcc 228d5d8cc55Smrg 229d5d8cc55Smrgcauses the specified `gcc' to be used as the C compiler (unless it is 230d5d8cc55Smrgoverridden in the site shell script). 231d5d8cc55Smrg 232d5d8cc55SmrgUnfortunately, this technique does not work for `CONFIG_SHELL' due to 233d5d8cc55Smrgan Autoconf bug. Until the bug is fixed you can use this workaround: 234d5d8cc55Smrg 235d5d8cc55Smrg CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash 236d5d8cc55Smrg 237d5d8cc55Smrg`configure' Invocation 238d5d8cc55Smrg====================== 239d5d8cc55Smrg 240d5d8cc55Smrg `configure' recognizes the following options to control how it 241d5d8cc55Smrgoperates. 242d5d8cc55Smrg 243d5d8cc55Smrg`--help' 244d5d8cc55Smrg`-h' 245d5d8cc55Smrg Print a summary of all of the options to `configure', and exit. 246d5d8cc55Smrg 247d5d8cc55Smrg`--help=short' 248d5d8cc55Smrg`--help=recursive' 249d5d8cc55Smrg Print a summary of the options unique to this package's 250d5d8cc55Smrg `configure', and exit. The `short' variant lists options used 251d5d8cc55Smrg only in the top level, while the `recursive' variant lists options 252d5d8cc55Smrg also present in any nested packages. 253d5d8cc55Smrg 254d5d8cc55Smrg`--version' 255d5d8cc55Smrg`-V' 256d5d8cc55Smrg Print the version of Autoconf used to generate the `configure' 257d5d8cc55Smrg script, and exit. 258d5d8cc55Smrg 259d5d8cc55Smrg`--cache-file=FILE' 260d5d8cc55Smrg Enable the cache: use and save the results of the tests in FILE, 261d5d8cc55Smrg traditionally `config.cache'. FILE defaults to `/dev/null' to 262d5d8cc55Smrg disable caching. 263d5d8cc55Smrg 264d5d8cc55Smrg`--config-cache' 265d5d8cc55Smrg`-C' 266d5d8cc55Smrg Alias for `--cache-file=config.cache'. 267d5d8cc55Smrg 268d5d8cc55Smrg`--quiet' 269d5d8cc55Smrg`--silent' 270d5d8cc55Smrg`-q' 271d5d8cc55Smrg Do not print messages saying which checks are being made. To 272d5d8cc55Smrg suppress all normal output, redirect it to `/dev/null' (any error 273d5d8cc55Smrg messages will still be shown). 274d5d8cc55Smrg 275d5d8cc55Smrg`--srcdir=DIR' 276d5d8cc55Smrg Look for the package's source code in directory DIR. Usually 277d5d8cc55Smrg `configure' can determine that directory automatically. 278d5d8cc55Smrg 279d5d8cc55Smrg`--prefix=DIR' 280d5d8cc55Smrg Use DIR as the installation prefix. *Note Installation Names:: 281d5d8cc55Smrg for more details, including other options available for fine-tuning 282d5d8cc55Smrg the installation locations. 283d5d8cc55Smrg 284d5d8cc55Smrg`--no-create' 285d5d8cc55Smrg`-n' 286d5d8cc55Smrg Run the configure checks, but stop before creating any output 287d5d8cc55Smrg files. 288d5d8cc55Smrg 289d5d8cc55Smrg`configure' also accepts some other, not widely useful, options. Run 290d5d8cc55Smrg`configure --help' for more details. 291d5d8cc55Smrg 292