1 1.1.1.2 mrg Installation Instructions 2 1.1.1.2 mrg ************************* 3 1.1.1.2 mrg 4 1.1.1.2 mrg Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, 5 1.1.1.2 mrg 2006, 2007, 2008 Free Software Foundation, Inc. 6 1.1.1.2 mrg 7 1.1.1.2 mrg This file is free documentation; the Free Software Foundation gives 8 1.1.1.2 mrg unlimited permission to copy, distribute and modify it. 9 1.1.1.2 mrg 10 1.1.1.2 mrg Basic Installation 11 1.1.1.2 mrg ================== 12 1.1.1.2 mrg 13 1.1.1.2 mrg Briefly, the shell commands `./configure; make; make install' should 14 1.1.1.2 mrg configure, build, and install this package. The following 15 1.1.1.2 mrg more-detailed instructions are generic; see the `README' file for 16 1.1.1.2 mrg instructions specific to this package. 17 1.1.1.2 mrg 18 1.1.1.2 mrg The `configure' shell script attempts to guess correct values for 19 1.1.1.2 mrg various system-dependent variables used during compilation. It uses 20 1.1.1.2 mrg those values to create a `Makefile' in each directory of the package. 21 1.1.1.2 mrg It may also create one or more `.h' files containing system-dependent 22 1.1.1.2 mrg definitions. Finally, it creates a shell script `config.status' that 23 1.1.1.2 mrg you can run in the future to recreate the current configuration, and a 24 1.1.1.2 mrg file `config.log' containing compiler output (useful mainly for 25 1.1.1.2 mrg debugging `configure'). 26 1.1.1.2 mrg 27 1.1.1.2 mrg It can also use an optional file (typically called `config.cache' 28 1.1.1.2 mrg and enabled with `--cache-file=config.cache' or simply `-C') that saves 29 1.1.1.2 mrg the results of its tests to speed up reconfiguring. Caching is 30 1.1.1.2 mrg disabled by default to prevent problems with accidental use of stale 31 1.1.1.2 mrg cache files. 32 1.1.1.2 mrg 33 1.1.1.2 mrg If you need to do unusual things to compile the package, please try 34 1.1.1.2 mrg to figure out how `configure' could check whether to do them, and mail 35 1.1.1.2 mrg diffs or instructions to the address given in the `README' so they can 36 1.1.1.2 mrg be considered for the next release. If you are using the cache, and at 37 1.1.1.2 mrg some point `config.cache' contains results you don't want to keep, you 38 1.1.1.2 mrg may remove or edit it. 39 1.1.1.2 mrg 40 1.1.1.2 mrg The file `configure.ac' (or `configure.in') is used to create 41 1.1.1.2 mrg `configure' by a program called `autoconf'. You need `configure.ac' if 42 1.1.1.2 mrg you want to change it or regenerate `configure' using a newer version 43 1.1.1.2 mrg of `autoconf'. 44 1.1.1.2 mrg 45 1.1.1.2 mrg The simplest way to compile this package is: 46 1.1.1.2 mrg 47 1.1.1.2 mrg 1. `cd' to the directory containing the package's source code and type 48 1.1.1.2 mrg `./configure' to configure the package for your system. 49 1.1.1.2 mrg 50 1.1.1.2 mrg Running `configure' might take a while. While running, it prints 51 1.1.1.2 mrg some messages telling which features it is checking for. 52 1.1.1.2 mrg 53 1.1.1.2 mrg 2. Type `make' to compile the package. 54 1.1.1.2 mrg 55 1.1.1.2 mrg 3. Optionally, type `make check' to run any self-tests that come with 56 1.1.1.2 mrg the package. 57 1.1.1.2 mrg 58 1.1.1.2 mrg 4. Type `make install' to install the programs and any data files and 59 1.1.1.2 mrg documentation. 60 1.1.1.2 mrg 61 1.1.1.2 mrg 5. You can remove the program binaries and object files from the 62 1.1.1.2 mrg source code directory by typing `make clean'. To also remove the 63 1.1.1.2 mrg files that `configure' created (so you can compile the package for 64 1.1.1.2 mrg a different kind of computer), type `make distclean'. There is 65 1.1.1.2 mrg also a `make maintainer-clean' target, but that is intended mainly 66 1.1.1.2 mrg for the package's developers. If you use it, you may have to get 67 1.1.1.2 mrg all sorts of other programs in order to regenerate files that came 68 1.1.1.2 mrg with the distribution. 69 1.1.1.2 mrg 70 1.1.1.2 mrg 6. Often, you can also type `make uninstall' to remove the installed 71 1.1.1.2 mrg files again. 72 1.1.1.2 mrg 73 1.1.1.2 mrg Compilers and Options 74 1.1.1.2 mrg ===================== 75 1.1.1.2 mrg 76 1.1.1.2 mrg Some systems require unusual options for compilation or linking that 77 1.1.1.2 mrg the `configure' script does not know about. Run `./configure --help' 78 1.1.1.2 mrg for details on some of the pertinent environment variables. 79 1.1.1.2 mrg 80 1.1.1.2 mrg You can give `configure' initial values for configuration parameters 81 1.1.1.2 mrg by setting variables in the command line or in the environment. Here 82 1.1.1.2 mrg is an example: 83 1.1.1.2 mrg 84 1.1.1.2 mrg ./configure CC=c99 CFLAGS=-g LIBS=-lposix 85 1.1.1.2 mrg 86 1.1.1.2 mrg *Note Defining Variables::, for more details. 87 1.1.1.2 mrg 88 1.1.1.2 mrg Compiling For Multiple Architectures 89 1.1.1.2 mrg ==================================== 90 1.1.1.2 mrg 91 1.1.1.2 mrg You can compile the package for more than one kind of computer at the 92 1.1.1.2 mrg same time, by placing the object files for each architecture in their 93 1.1.1.2 mrg own directory. To do this, you can use GNU `make'. `cd' to the 94 1.1.1.2 mrg directory where you want the object files and executables to go and run 95 1.1.1.2 mrg the `configure' script. `configure' automatically checks for the 96 1.1.1.2 mrg source code in the directory that `configure' is in and in `..'. 97 1.1.1.2 mrg 98 1.1.1.2 mrg With a non-GNU `make', it is safer to compile the package for one 99 1.1.1.2 mrg architecture at a time in the source code directory. After you have 100 1.1.1.2 mrg installed the package for one architecture, use `make distclean' before 101 1.1.1.2 mrg reconfiguring for another architecture. 102 1.1.1.2 mrg 103 1.1.1.2 mrg On MacOS X 10.5 and later systems, you can create libraries and 104 1.1.1.2 mrg executables that work on multiple system types--known as "fat" or 105 1.1.1.2 mrg "universal" binaries--by specifying multiple `-arch' options to the 106 1.1.1.2 mrg compiler but only a single `-arch' option to the preprocessor. Like 107 1.1.1.2 mrg this: 108 1.1.1.2 mrg 109 1.1.1.2 mrg ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ 110 1.1.1.2 mrg CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ 111 1.1.1.2 mrg CPP="gcc -E" CXXCPP="g++ -E" 112 1.1.1.2 mrg 113 1.1.1.2 mrg This is not guaranteed to produce working output in all cases, you 114 1.1.1.2 mrg may have to build one architecture at a time and combine the results 115 1.1.1.2 mrg using the `lipo' tool if you have problems. 116 1.1.1.2 mrg 117 1.1.1.2 mrg Installation Names 118 1.1.1.2 mrg ================== 119 1.1.1.2 mrg 120 1.1.1.2 mrg By default, `make install' installs the package's commands under 121 1.1.1.2 mrg `/usr/local/bin', include files under `/usr/local/include', etc. You 122 1.1.1.2 mrg can specify an installation prefix other than `/usr/local' by giving 123 1.1.1.2 mrg `configure' the option `--prefix=PREFIX'. 124 1.1.1.2 mrg 125 1.1.1.2 mrg You can specify separate installation prefixes for 126 1.1.1.2 mrg architecture-specific files and architecture-independent files. If you 127 1.1.1.2 mrg pass the option `--exec-prefix=PREFIX' to `configure', the package uses 128 1.1.1.2 mrg PREFIX as the prefix for installing programs and libraries. 129 1.1.1.2 mrg Documentation and other data files still use the regular prefix. 130 1.1.1.2 mrg 131 1.1.1.2 mrg In addition, if you use an unusual directory layout you can give 132 1.1.1.2 mrg options like `--bindir=DIR' to specify different values for particular 133 1.1.1.2 mrg kinds of files. Run `configure --help' for a list of the directories 134 1.1.1.2 mrg you can set and what kinds of files go in them. 135 1.1.1.2 mrg 136 1.1.1.2 mrg If the package supports it, you can cause programs to be installed 137 1.1.1.2 mrg with an extra prefix or suffix on their names by giving `configure' the 138 1.1.1.2 mrg option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. 139 1.1.1.2 mrg 140 1.1.1.2 mrg Optional Features 141 1.1.1.2 mrg ================= 142 1.1.1.2 mrg 143 1.1.1.2 mrg Some packages pay attention to `--enable-FEATURE' options to 144 1.1.1.2 mrg `configure', where FEATURE indicates an optional part of the package. 145 1.1.1.2 mrg They may also pay attention to `--with-PACKAGE' options, where PACKAGE 146 1.1.1.2 mrg is something like `gnu-as' or `x' (for the X Window System). The 147 1.1.1.2 mrg `README' should mention any `--enable-' and `--with-' options that the 148 1.1.1.2 mrg package recognizes. 149 1.1.1.2 mrg 150 1.1.1.2 mrg For packages that use the X Window System, `configure' can usually 151 1.1.1.2 mrg find the X include and library files automatically, but if it doesn't, 152 1.1.1.2 mrg you can use the `configure' options `--x-includes=DIR' and 153 1.1.1.2 mrg `--x-libraries=DIR' to specify their locations. 154 1.1.1.2 mrg 155 1.1.1.2 mrg Particular systems 156 1.1.1.2 mrg ================== 157 1.1.1.2 mrg 158 1.1.1.2 mrg On HP-UX, the default C compiler is not ANSI C compatible. If GNU 159 1.1.1.2 mrg CC is not installed, it is recommended to use the following options in 160 1.1.1.2 mrg order to use an ANSI C compiler: 161 1.1.1.2 mrg 162 1.1.1.2 mrg ./configure CC="cc -Ae" 163 1.1.1.2 mrg 164 1.1.1.2 mrg and if that doesn't work, install pre-built binaries of GCC for HP-UX. 165 1.1.1.2 mrg 166 1.1.1.2 mrg On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot 167 1.1.1.2 mrg parse its `<wchar.h>' header file. The option `-nodtk' can be used as 168 1.1.1.2 mrg a workaround. If GNU CC is not installed, it is therefore recommended 169 1.1.1.2 mrg to try 170 1.1.1.2 mrg 171 1.1.1.2 mrg ./configure CC="cc" 172 1.1.1.2 mrg 173 1.1.1.2 mrg and if that doesn't work, try 174 1.1.1.2 mrg 175 1.1.1.2 mrg ./configure CC="cc -nodtk" 176 1.1.1.2 mrg 177 1.1.1.2 mrg Specifying the System Type 178 1.1.1.2 mrg ========================== 179 1.1.1.2 mrg 180 1.1.1.2 mrg There may be some features `configure' cannot figure out 181 1.1.1.2 mrg automatically, but needs to determine by the type of machine the package 182 1.1.1.2 mrg will run on. Usually, assuming the package is built to be run on the 183 1.1.1.2 mrg _same_ architectures, `configure' can figure that out, but if it prints 184 1.1.1.2 mrg a message saying it cannot guess the machine type, give it the 185 1.1.1.2 mrg `--build=TYPE' option. TYPE can either be a short name for the system 186 1.1.1.2 mrg type, such as `sun4', or a canonical name which has the form: 187 1.1.1.2 mrg 188 1.1.1.2 mrg CPU-COMPANY-SYSTEM 189 1.1.1.2 mrg 190 1.1.1.2 mrg where SYSTEM can have one of these forms: 191 1.1.1.2 mrg 192 1.1.1.2 mrg OS KERNEL-OS 193 1.1.1.2 mrg 194 1.1.1.2 mrg See the file `config.sub' for the possible values of each field. If 195 1.1.1.2 mrg `config.sub' isn't included in this package, then this package doesn't 196 1.1.1.2 mrg need to know the machine type. 197 1.1.1.2 mrg 198 1.1.1.2 mrg If you are _building_ compiler tools for cross-compiling, you should 199 1.1.1.2 mrg use the option `--target=TYPE' to select the type of system they will 200 1.1.1.2 mrg produce code for. 201 1.1.1.2 mrg 202 1.1.1.2 mrg If you want to _use_ a cross compiler, that generates code for a 203 1.1.1.2 mrg platform different from the build platform, you should specify the 204 1.1.1.2 mrg "host" platform (i.e., that on which the generated programs will 205 1.1.1.2 mrg eventually be run) with `--host=TYPE'. 206 1.1.1.2 mrg 207 1.1.1.2 mrg Sharing Defaults 208 1.1.1.2 mrg ================ 209 1.1.1.2 mrg 210 1.1.1.2 mrg If you want to set default values for `configure' scripts to share, 211 1.1.1.2 mrg you can create a site shell script called `config.site' that gives 212 1.1.1.2 mrg default values for variables like `CC', `cache_file', and `prefix'. 213 1.1.1.2 mrg `configure' looks for `PREFIX/share/config.site' if it exists, then 214 1.1.1.2 mrg `PREFIX/etc/config.site' if it exists. Or, you can set the 215 1.1.1.2 mrg `CONFIG_SITE' environment variable to the location of the site script. 216 1.1.1.2 mrg A warning: not all `configure' scripts look for a site script. 217 1.1.1.2 mrg 218 1.1.1.2 mrg Defining Variables 219 1.1.1.2 mrg ================== 220 1.1.1.2 mrg 221 1.1.1.2 mrg Variables not defined in a site shell script can be set in the 222 1.1.1.2 mrg environment passed to `configure'. However, some packages may run 223 1.1.1.2 mrg configure again during the build, and the customized values of these 224 1.1.1.2 mrg variables may be lost. In order to avoid this problem, you should set 225 1.1.1.2 mrg them in the `configure' command line, using `VAR=value'. For example: 226 1.1.1.2 mrg 227 1.1.1.2 mrg ./configure CC=/usr/local2/bin/gcc 228 1.1.1.2 mrg 229 1.1.1.2 mrg causes the specified `gcc' to be used as the C compiler (unless it is 230 1.1.1.2 mrg overridden in the site shell script). 231 1.1.1.2 mrg 232 1.1.1.2 mrg Unfortunately, this technique does not work for `CONFIG_SHELL' due to 233 1.1.1.2 mrg an Autoconf bug. Until the bug is fixed you can use this workaround: 234 1.1.1.2 mrg 235 1.1.1.2 mrg CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash 236 1.1.1.2 mrg 237 1.1.1.2 mrg `configure' Invocation 238 1.1.1.2 mrg ====================== 239 1.1.1.2 mrg 240 1.1.1.2 mrg `configure' recognizes the following options to control how it 241 1.1.1.2 mrg operates. 242 1.1.1.2 mrg 243 1.1.1.2 mrg `--help' 244 1.1.1.2 mrg `-h' 245 1.1.1.2 mrg Print a summary of all of the options to `configure', and exit. 246 1.1.1.2 mrg 247 1.1.1.2 mrg `--help=short' 248 1.1.1.2 mrg `--help=recursive' 249 1.1.1.2 mrg Print a summary of the options unique to this package's 250 1.1.1.2 mrg `configure', and exit. The `short' variant lists options used 251 1.1.1.2 mrg only in the top level, while the `recursive' variant lists options 252 1.1.1.2 mrg also present in any nested packages. 253 1.1.1.2 mrg 254 1.1.1.2 mrg `--version' 255 1.1.1.2 mrg `-V' 256 1.1.1.2 mrg Print the version of Autoconf used to generate the `configure' 257 1.1.1.2 mrg script, and exit. 258 1.1.1.2 mrg 259 1.1.1.2 mrg `--cache-file=FILE' 260 1.1.1.2 mrg Enable the cache: use and save the results of the tests in FILE, 261 1.1.1.2 mrg traditionally `config.cache'. FILE defaults to `/dev/null' to 262 1.1.1.2 mrg disable caching. 263 1.1.1.2 mrg 264 1.1.1.2 mrg `--config-cache' 265 1.1.1.2 mrg `-C' 266 1.1.1.2 mrg Alias for `--cache-file=config.cache'. 267 1.1.1.2 mrg 268 1.1.1.2 mrg `--quiet' 269 1.1.1.2 mrg `--silent' 270 1.1.1.2 mrg `-q' 271 1.1.1.2 mrg Do not print messages saying which checks are being made. To 272 1.1.1.2 mrg suppress all normal output, redirect it to `/dev/null' (any error 273 1.1.1.2 mrg messages will still be shown). 274 1.1.1.2 mrg 275 1.1.1.2 mrg `--srcdir=DIR' 276 1.1.1.2 mrg Look for the package's source code in directory DIR. Usually 277 1.1.1.2 mrg `configure' can determine that directory automatically. 278 1.1.1.2 mrg 279 1.1.1.2 mrg `--prefix=DIR' 280 1.1.1.2 mrg Use DIR as the installation prefix. *Note Installation Names:: 281 1.1.1.2 mrg for more details, including other options available for fine-tuning 282 1.1.1.2 mrg the installation locations. 283 1.1.1.2 mrg 284 1.1.1.2 mrg `--no-create' 285 1.1.1.2 mrg `-n' 286 1.1.1.2 mrg Run the configure checks, but stop before creating any output 287 1.1.1.2 mrg files. 288 1.1.1.2 mrg 289 1.1.1.2 mrg `configure' also accepts some other, not widely useful, options. Run 290 1.1.1.2 mrg `configure --help' for more details. 291 1.1.1.2 mrg 292