1 ---------------------------
2 (Some notes specific to GRAS)
3 ---------------------------
8 In order to cross-compile the package to windows from linux, you need to
9 install mingw32 (minimalist gnu win32). On Debian, you can do so by
10 installing the packages mingw32 (compiler), mingw32-binutils (linker and
13 You can use the VPATH support of configure to compile at the same time for
14 linux and windows without dupplicating the source nor cleaning the tree
15 between each. Just run bootstrap (if you use the CVS) to run the autotools.
16 Then, create a linux and a win directories. Then, type:
17 cd linux; ../configure --srcdir=.. <usual configure flags>; cd ..
18 cd win; ../configure --srcdir=.. --host=i586-mingw32msvc <flags>; cd ..
19 After that, you can run all make target from both directories, and test
20 easily that what you change for one arch does not break the other one.
22 Of course, for the test, you can use wine.
23 For that, do not forget to put the mingw32.dll where wine expects it.
24 cp /usr/share/doc/mingw32-runtime/mingwm10.dll.gz ~/.wine/c/windows/system/
25 gunzip ~/.wine/c/windows/system/mingwm10.dll.gz
27 Please note that as long as we don't export the symbols the dll way, libtool
28 only build a static library. So, the programs cross-compiled do only need
29 the mingwm10.dll around (either in the same directory, or in c:\windows).
31 If you're really curious, check /usr/include/png.h and
32 /usr/include/pngconf.h (pkg libpng12-dev) to see how to export the symbols
33 the proper way. Search for 'dll' in the libtool info file, too.
35 --------------------------------
36 (The regular INSTALL file follows)
37 --------------------------------
39 Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002 Free Software
42 This file is free documentation; the Free Software Foundation gives
43 unlimited permission to copy, distribute and modify it.
48 These are generic installation instructions.
50 The `configure' shell script attempts to guess correct values for
51 various system-dependent variables used during compilation. It uses
52 those values to create a `Makefile' in each directory of the package.
53 It may also create one or more `.h' files containing system-dependent
54 definitions. Finally, it creates a shell script `config.status' that
55 you can run in the future to recreate the current configuration, and a
56 file `config.log' containing compiler output (useful mainly for
57 debugging `configure').
59 It can also use an optional file (typically called `config.cache'
60 and enabled with `--cache-file=config.cache' or simply `-C') that saves
61 the results of its tests to speed up reconfiguring. (Caching is
62 disabled by default to prevent problems with accidental use of stale
65 If you need to do unusual things to compile the package, please try
66 to figure out how `configure' could check whether to do them, and mail
67 diffs or instructions to the address given in the `README' so they can
68 be considered for the next release. If you are using the cache, and at
69 some point `config.cache' contains results you don't want to keep, you
70 may remove or edit it.
72 The file `configure.ac' (or `configure.in') is used to create
73 `configure' by a program called `autoconf'. You only need
74 `configure.ac' if you want to change it or regenerate `configure' using
75 a newer version of `autoconf'.
77 The simplest way to compile this package is:
79 1. `cd' to the directory containing the package's source code and type
80 `./configure' to configure the package for your system. If you're
81 using `csh' on an old version of System V, you might need to type
82 `sh ./configure' instead to prevent `csh' from trying to execute
85 Running `configure' takes awhile. While running, it prints some
86 messages telling which features it is checking for.
88 2. Type `make' to compile the package.
90 3. Optionally, type `make check' to run any self-tests that come with
93 4. Type `make install' to install the programs and any data files and
96 5. You can remove the program binaries and object files from the
97 source code directory by typing `make clean'. To also remove the
98 files that `configure' created (so you can compile the package for
99 a different kind of computer), type `make distclean'. There is
100 also a `make maintainer-clean' target, but that is intended mainly
101 for the package's developers. If you use it, you may have to get
102 all sorts of other programs in order to regenerate files that came
103 with the distribution.
105 Compilers and Options
106 =====================
108 Some systems require unusual options for compilation or linking that
109 the `configure' script does not know about. Run `./configure --help'
110 for details on some of the pertinent environment variables.
112 You can give `configure' initial values for configuration parameters
113 by setting variables in the command line or in the environment. Here
116 ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
118 *Note Defining Variables::, for more details.
120 Compiling For Multiple Architectures
121 ====================================
123 You can compile the package for more than one kind of computer at the
124 same time, by placing the object files for each architecture in their
125 own directory. To do this, you must use a version of `make' that
126 supports the `VPATH' variable, such as GNU `make'. `cd' to the
127 directory where you want the object files and executables to go and run
128 the `configure' script. `configure' automatically checks for the
129 source code in the directory that `configure' is in and in `..'.
131 If you have to use a `make' that does not support the `VPATH'
132 variable, you have to compile the package for one architecture at a
133 time in the source code directory. After you have installed the
134 package for one architecture, use `make distclean' before reconfiguring
135 for another architecture.
140 By default, `make install' will install the package's files in
141 `/usr/local/bin', `/usr/local/man', etc. You can specify an
142 installation prefix other than `/usr/local' by giving `configure' the
143 option `--prefix=PATH'.
145 You can specify separate installation prefixes for
146 architecture-specific files and architecture-independent files. If you
147 give `configure' the option `--exec-prefix=PATH', the package will use
148 PATH as the prefix for installing programs and libraries.
149 Documentation and other data files will still use the regular prefix.
151 In addition, if you use an unusual directory layout you can give
152 options like `--bindir=PATH' to specify different values for particular
153 kinds of files. Run `configure --help' for a list of the directories
154 you can set and what kinds of files go in them.
156 If the package supports it, you can cause programs to be installed
157 with an extra prefix or suffix on their names by giving `configure' the
158 option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
163 Some packages pay attention to `--enable-FEATURE' options to
164 `configure', where FEATURE indicates an optional part of the package.
165 They may also pay attention to `--with-PACKAGE' options, where PACKAGE
166 is something like `gnu-as' or `x' (for the X Window System). The
167 `README' should mention any `--enable-' and `--with-' options that the
170 For packages that use the X Window System, `configure' can usually
171 find the X include and library files automatically, but if it doesn't,
172 you can use the `configure' options `--x-includes=DIR' and
173 `--x-libraries=DIR' to specify their locations.
175 Specifying the System Type
176 ==========================
178 There may be some features `configure' cannot figure out
179 automatically, but needs to determine by the type of machine the package
180 will run on. Usually, assuming the package is built to be run on the
181 _same_ architectures, `configure' can figure that out, but if it prints
182 a message saying it cannot guess the machine type, give it the
183 `--build=TYPE' option. TYPE can either be a short name for the system
184 type, such as `sun4', or a canonical name which has the form:
188 where SYSTEM can have one of these forms:
192 See the file `config.sub' for the possible values of each field. If
193 `config.sub' isn't included in this package, then this package doesn't
194 need to know the machine type.
196 If you are _building_ compiler tools for cross-compiling, you should
197 use the `--target=TYPE' option to select the type of system they will
200 If you want to _use_ a cross compiler, that generates code for a
201 platform different from the build platform, you should specify the
202 "host" platform (i.e., that on which the generated programs will
203 eventually be run) with `--host=TYPE'.
208 If you want to set default values for `configure' scripts to share,
209 you can create a site shell script called `config.site' that gives
210 default values for variables like `CC', `cache_file', and `prefix'.
211 `configure' looks for `PREFIX/share/config.site' if it exists, then
212 `PREFIX/etc/config.site' if it exists. Or, you can set the
213 `CONFIG_SITE' environment variable to the location of the site script.
214 A warning: not all `configure' scripts look for a site script.
219 Variables not defined in a site shell script can be set in the
220 environment passed to `configure'. However, some packages may run
221 configure again during the build, and the customized values of these
222 variables may be lost. In order to avoid this problem, you should set
223 them in the `configure' command line, using `VAR=value'. For example:
225 ./configure CC=/usr/local2/bin/gcc
227 will cause the specified gcc to be used as the C compiler (unless it is
228 overridden in the site shell script).
230 `configure' Invocation
231 ======================
233 `configure' recognizes the following options to control how it
238 Print a summary of the options to `configure', and exit.
242 Print the version of Autoconf used to generate the `configure'
246 Enable the cache: use and save the results of the tests in FILE,
247 traditionally `config.cache'. FILE defaults to `/dev/null' to
252 Alias for `--cache-file=config.cache'.
257 Do not print messages saying which checks are being made. To
258 suppress all normal output, redirect it to `/dev/null' (any error
259 messages will still be shown).
262 Look for the package's source code in directory DIR. Usually
263 `configure' can determine that directory automatically.
265 `configure' also accepts some other, not widely useful, options. Run
266 `configure --help' for more details.