/src/FreeImage/Source/LibMNG/README.autoconf

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  2**********************************************************************
  3
  4                ***** this is unmaintained *****
  5
  6If you happen to find problems with autoconfiguration and building,
  7I simply cannot help you. I'm looking for a maintainer that doesn't mind
  8spending a few minutes every now and then on the next release to make sure
  9things are still in working order.
 10
 11For the moment all autoconf stuff ahs been moved into unmaintained!!
 12
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 14**********************************************************************
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 17
 18
 19Configuration from CVS
 20======================
 21
 22If you're using source checked out from CVS, rather than a source
 23distribution tarball, please be aware that you can use ./autogen.sh in
 24place of ./configure below.
 25
 26Because this is a cross-platform project, the source templates for
 27the autoconf scripts are sequestered in the 'makefiles' directory.
 28Running './autogen.sh' will copy them into their conventional places at
 29the lop level. If you already see the files there, you don't need to
 30worry about this step.
 31
 32Basic Installation
 33==================
 34
 35   These are generic installation instructions.
 36
 37   The `configure' shell script attempts to guess correct values for
 38various system-dependent variables used during compilation.  It uses
 39those values to create a `Makefile' in each directory of the package.
 40It may also create one or more `.h' files containing system-dependent
 41definitions.  Finally, it creates a shell script `config.status' that
 42you can run in the future to recreate the current configuration, a file
 43`config.cache' that saves the results of its tests to speed up
 44reconfiguring, and a file `config.log' containing compiler output
 45(useful mainly for debugging `configure').
 46
 47   If you need to do unusual things to compile the package, please try
 48to figure out how `configure' could check whether to do them, and mail
 49diffs or instructions to the address given in the `README' so they can
 50be considered for the next release.  If at some point `config.cache'
 51contains results you don't want to keep, you may remove or edit it.
 52
 53   The file `configure.in' is used to create `configure' by a program
 54called `autoconf'.  You only need `configure.in' if you want to change
 55it or regenerate `configure' using a newer version of `autoconf'.
 56
 57The simplest way to compile this package is:
 58
 59  1. `cd' to the directory containing the package's source code and type
 60     `./configure' to configure the package for your system.  If you're
 61     using `csh' on an old version of System V, you might need to type
 62     `sh ./configure' instead to prevent `csh' from trying to execute
 63     `configure' itself.
 64
 65     Running `configure' takes awhile.  While running, it prints some
 66     messages telling which features it is checking for.
 67
 68  2. Type `make' to compile the package.
 69
 70  3. Optionally, type `make check' to run any self-tests that come with
 71     the package.
 72
 73  4. Type `make install' to install the programs and any data files and
 74     documentation.
 75
 76  5. You can remove the program binaries and object files from the
 77     source code directory by typing `make clean'.  To also remove the
 78     files that `configure' created (so you can compile the package for
 79     a different kind of computer), type `make distclean'.  There is
 80     also a `make maintainer-clean' target, but that is intended mainly
 81     for the package's developers.  If you use it, you may have to get
 82     all sorts of other programs in order to regenerate files that came
 83     with the distribution.
 84
 85Compilers and Options
 86=====================
 87
 88   Some systems require unusual options for compilation or linking that
 89the `configure' script does not know about.  You can give `configure'
 90initial values for variables by setting them in the environment.  Using
 91a Bourne-compatible shell, you can do that on the command line like
 92this:
 93     CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
 94
 95Or on systems that have the `env' program, you can do it like this:
 96     env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
 97
 98Compiling For Multiple Architectures
 99====================================
100
101   You can compile the package for more than one kind of computer at the
102same time, by placing the object files for each architecture in their
103own directory.  To do this, you must use a version of `make' that
104supports the `VPATH' variable, such as GNU `make'.  `cd' to the
105directory where you want the object files and executables to go and run
106the `configure' script.  `configure' automatically checks for the
107source code in the directory that `configure' is in and in `..'.
108
109   If you have to use a `make' that does not supports the `VPATH'
110variable, you have to compile the package for one architecture at a time
111in the source code directory.  After you have installed the package for
112one architecture, use `make distclean' before reconfiguring for another
113architecture.
114
115Installation Names
116==================
117
118   By default, `make install' will install the package's files in
119`/usr/local/bin', `/usr/local/man', etc.  You can specify an
120installation prefix other than `/usr/local' by giving `configure' the
121option `--prefix=PATH'.
122
123   You can specify separate installation prefixes for
124architecture-specific files and architecture-independent files.  If you
125give `configure' the option `--exec-prefix=PATH', the package will use
126PATH as the prefix for installing programs and libraries.
127Documentation and other data files will still use the regular prefix.
128
129   In addition, if you use an unusual directory layout you can give
130options like `--bindir=PATH' to specify different values for particular
131kinds of files.  Run `configure --help' for a list of the directories
132you can set and what kinds of files go in them.
133
134   If the package supports it, you can cause programs to be installed
135with an extra prefix or suffix on their names by giving `configure' the
136option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
137
138Optional Features
139=================
140
141   Some packages pay attention to `--enable-FEATURE' options to
142`configure', where FEATURE indicates an optional part of the package.
143They may also pay attention to `--with-PACKAGE' options, where PACKAGE
144is something like `gnu-as' or `x' (for the X Window System).  The
145`README' should mention any `--enable-' and `--with-' options that the
146package recognizes.
147
148   For packages that use the X Window System, `configure' can usually
149find the X include and library files automatically, but if it doesn't,
150you can use the `configure' options `--x-includes=DIR' and
151`--x-libraries=DIR' to specify their locations.
152
153Specifying the System Type
154==========================
155
156   There may be some features `configure' can not figure out
157automatically, but needs to determine by the type of host the package
158will run on.  Usually `configure' can figure that out, but if it prints
159a message saying it can not guess the host type, give it the
160`--host=TYPE' option.  TYPE can either be a short name for the system
161type, such as `sun4', or a canonical name with three fields:
162     CPU-COMPANY-SYSTEM
163
164See the file `config.sub' for the possible values of each field.  If
165`config.sub' isn't included in this package, then this package doesn't
166need to know the host type.
167
168   If you are building compiler tools for cross-compiling, you can also
169use the `--target=TYPE' option to select the type of system they will
170produce code for and the `--build=TYPE' option to select the type of
171system on which you are compiling the package.
172
173Sharing Defaults
174================
175
176   If you want to set default values for `configure' scripts to share,
177you can create a site shell script called `config.site' that gives
178default values for variables like `CC', `cache_file', and `prefix'.
179`configure' looks for `PREFIX/share/config.site' if it exists, then
180`PREFIX/etc/config.site' if it exists.  Or, you can set the
181`CONFIG_SITE' environment variable to the location of the site script.
182A warning: not all `configure' scripts look for a site script.
183
184Operation Controls
185==================
186
187   `configure' recognizes the following options to control how it
188operates.
189
190`--cache-file=FILE'
191     Use and save the results of the tests in FILE instead of
192     `./config.cache'.  Set FILE to `/dev/null' to disable caching, for
193     debugging `configure'.
194
195`--help'
196     Print a summary of the options to `configure', and exit.
197
198`--quiet'
199`--silent'
200`-q'
201     Do not print messages saying which checks are being made.  To
202     suppress all normal output, redirect it to `/dev/null' (any error
203     messages will still be shown).
204
205`--srcdir=DIR'
206     Look for the package's source code in directory DIR.  Usually
207     `configure' can determine that directory automatically.
208
209`--version'
210     Print the version of Autoconf used to generate the `configure'
211     script, and exit.
212
213`configure' also accepts some other, not widely useful, options.