Copyright 1994, 1995, 1996, 1999, 2000, 2001, 2002 Free Software
Foundation, Inc.

   This file is free documentation; the Free Software Foundation gives
unlimited permission to copy, distribute and modify it.


THE FOLLOWING INFORMATION ARE INTENDED FOR *NIX SYSTEMS. IF YOU WISH
TO INSTALL ADOL-C ON A WINDOWS PLATFORM PLEASE SKIP THE NEXT PARAGRAPHS
AND CONTINUE NEAR THE END OF THIS FILE.


***********************************************************************
*               INSTALLING ADOL-C ON *NIX PLATFORMS                   *
***********************************************************************

Basic Installation
==================

   These are generic installation instructions.

   The `configure' shell script attempts to guess correct values for
various system-dependent variables used during compilation.  It uses
those values to create a `Makefile' in each directory of the package.
It may also create one or more `.h' files containing system-dependent
definitions.  Finally, it creates a shell script `config.status' that
you can run in the future to recreate the current configuration, and a
file `config.log' containing compiler output (useful mainly for
debugging `configure').

   It can also use an optional file (typically called `config.cache'
and enabled with `--cache-file=config.cache' or simply `-C') that saves
the results of its tests to speed up reconfiguring.  (Caching is
disabled by default to prevent problems with accidental use of stale
cache files.)

   If you need to do unusual things to compile the package, please try
to figure out how `configure' could check whether to do them, and mail
diffs or instructions to the address given in the `README' so they can
be considered for the next release.  If you are using the cache, and at
some point `config.cache' contains results you don't want to keep, you
may remove or edit it.

   The file `configure.ac' (or `configure.in') is used to create
`configure' by a program called `autoconf'.  You only need
`configure.ac' if you want to change it or regenerate `configure' using
a newer version of `autoconf'.

The simplest way to compile this package is:

  1. Type `./configure' to configure the package for your system.  If
     you're using `csh' on an old version of System V, you might need
     to type `sh ./configure' instead to prevent `csh' from trying to
     execute `configure' itself.

     Running `configure' takes awhile.  While running, it prints some
     messages telling which features it is checking for.

  2. Type `make' to compile the package.

  3. Optionally, type `make check' to run any self-tests that come with
     the package.

  4. Type `make install' to install the programs and any data files and
     documentation.

  5. You can remove the program binaries and object files from the
     source code directory by typing `make clean'.  To also remove the
     files that `configure' created (so you can compile the package for
     a different kind of computer), type `make distclean'.  There is
     also a `make maintainer-clean' target, but that is intended mainly
     for the package's developers.  If you use it, you may have to get
     all sorts of other programs in order to regenerate files that came
     with the distribution.

Compilers and Options
=====================

   Some systems require unusual options for compilation or linking that
the `configure' script does not know about.  Run `./configure --help'
for details on some of the pertinent environment variables.

   You can give `configure' initial values for configuration parameters
by setting variables in the command line or in the environment.  Here
is an example:

     ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix

   *Note Defining Variables::, for more details.

Compiling For Multiple Architectures
====================================

   You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory.  To do this, you must use a version of `make' that
supports the `VPATH' variable, such as GNU `make'.  `cd' to the
directory where you want the object files and executables to go and run
the `configure' script.  `configure' automatically checks for the
source code in the directory that `configure' is in and in `..'.

   If you have to use a `make' that does not support the `VPATH'
variable, you have to compile the package for one architecture at a
time in the source code directory.  After you have installed the
package for one architecture, use `make distclean' before reconfiguring
for another architecture.

Installation Names
==================

   By default, `make install' will install the package's files in
`${HOME}/adolc_base/include', `${HOME}/adolc_base/lib'. You can specify an
installation prefix other than `${HOME}/adolc_base/' by giving `configure'
the option `--prefix=PATH'.

   You can specify separate installation prefixes for
architecture-specific files and architecture-independent files.  If you
give `configure' the option `--exec-prefix=PATH', the package will use
PATH as the prefix for installing programs and libraries.
Documentation and other data files will still use the regular prefix.

   In addition, if you use an unusual directory layout you can give
options like `--bindir=PATH' to specify different values for particular
kinds of files.  Run `configure --help' for a list of the directories
you can set and what kinds of files go in them.

   If the package supports it, you can cause programs to be installed
with an extra prefix or suffix on their names by giving `configure' the
option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.

Optional Features
=================

   Some packages pay attention to `--enable-FEATURE' options to
`configure', where FEATURE indicates an optional part of the package.
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
is something like `gnu-as' or `x' (for the X Window System).  The
`README' should mention any `--enable-' and `--with-' options that the
package recognizes.

   For packages that use the X Window System, `configure' can usually
find the X include and library files automatically, but if it doesn't,
you can use the `configure' options `--x-includes=DIR' and
`--x-libraries=DIR' to specify their locations.

Specifying the System Type
==========================

   There may be some features `configure' cannot figure out
automatically, but needs to determine by the type of machine the package
will run on.  Usually, assuming the package is built to be run on the
_same_ architectures, `configure' can figure that out, but if it prints
a message saying it cannot guess the machine type, give it the
`--build=TYPE' option.  TYPE can either be a short name for the system
type, such as `sun4', or a canonical name which has the form:

     CPU-COMPANY-SYSTEM

where SYSTEM can have one of these forms:

     OS KERNEL-OS

   See the file `config.sub' for the possible values of each field.  If
`config.sub' isn't included in this package, then this package doesn't
need to know the machine type.

   If you are _building_ compiler tools for cross-compiling, you should
use the `--target=TYPE' option to select the type of system they will
produce code for.

   If you want to _use_ a cross compiler, that generates code for a
platform different from the build platform, you should specify the
"host" platform (i.e., that on which the generated programs will
eventually be run) with `--host=TYPE'.

Sharing Defaults
================

   If you want to set default values for `configure' scripts to share,
you can create a site shell script called `config.site' that gives
default values for variables like `CC', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists.  Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.

Defining Variables
==================

   Variables not defined in a site shell script can be set in the
environment passed to `configure'.  However, some packages may run
configure again during the build, and the customized values of these
variables may be lost.  In order to avoid this problem, you should set
them in the `configure' command line, using `VAR=value'.  For example:

     ./configure CC=/usr/local2/bin/gcc

will cause the specified gcc to be used as the C compiler (unless it is
overridden in the site shell script).

`configure' Invocation
======================

   `configure' recognizes the following options to control how it
operates.

`--help'
`-h'
     Print a summary of the options to `configure', and exit.

`--version'
`-V'
     Print the version of Autoconf used to generate the `configure'
     script, and exit.

`--cache-file=FILE'
     Enable the cache: use and save the results of the tests in FILE,
     traditionally `config.cache'.  FILE defaults to `/dev/null' to
     disable caching.

`--config-cache'
`-C'
     Alias for `--cache-file=config.cache'.

`--quiet'
`--silent'
`-q'
     Do not print messages saying which checks are being made.  To
     suppress all normal output, redirect it to `/dev/null' (any error
     messages will still be shown).

`--srcdir=DIR'
     Look for the package's source code in directory DIR.  Usually
     `configure' can determine that directory automatically.

`configure' also accepts some other, not widely useful, options.  Run
`configure --help' for more details.



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*              INSTALLING ADOL-C ON WINDOWS PLATFORMS                 *
***********************************************************************

Preperations
============

The provided makefile set is optimized for the GNU-make system. Although
other make systems may work too we strongly recommened using the GNU
version. The later can be obtained from the download section of the MinGW
project page located at

http://www.mingw.org/download.shtml

or from the files section of the SourceForge project page

http://sourceforge.net/projects/mingw/

Of the "mingw32-make*" package one only needs the executable from the "bin"
sub-directory ( sub-folder ;-) ). To install it two ways are possible
basically distinguished by the necessary privileges.

1) Install with administrator privileges
Simply copy the ecexutable into a directory covered by the PATH variable
(e.g. C:\WINDOWS) and rename it to make.exe .

2) Install without administrator privileges
Copy the executable into the main directory of the unzipped ADOL-C package
and rename it to make.exe . Adjust the PATH variable by executing
"SET PATH=<adolc path>;%PATH%" where <adolc path> has to be replaced by the
full path to the ADOL-C main directory including device letter. Remember
that the later is a temporary change.


The Windows version of ADOL-C was tested in the following environment:
 - Windows XP
 - Microsoft Visual C++ Toolkit 2003
 - GNUmake
All variables within the ADOL-C package are adjusted to fit exactly our
test environment. If an other compiler should be used one should adjust
the files "winflags_dll" and "winflags_exa" accordingly.

COMPILING
=========

ADOL-C features a Windows compilation script named "comp_win.bat" that
should be used. It is a simple wrapper that calls the make program with
appropriate arguments. The script itself accepts a small number of
switches what results in the following ways of calling it:

 1) "comp_win" or "comp_win library"

    Compiles the library only.

 2) "comp_win --with-exa"

    Compiles the library and all examples.

 3) "comp_win clean"

    Removes all created files including the library.

There is (currently) no automatic way of installing the relevant headers
and the library in the Windows file hirarchy after completing the compile
step. We recommend to use the build directory directly when compiling and
linking against ADOL-C in the following way:

 *) Use the "-I" switch or an equivalent with the ADOL-C base directory as
    argument for specifying the include path. Have a look at the documen-
    tation and the included examples to figure out the necessary include
    files.
    
 *) Link your programs against the ADOL-C import library "adolc.lib" that
    can be found in the sub-directory "adolc".

 *) IMPORTANT: The new program needs to find the ADOL-C export library
    "adolc.dll" that is also located in the sub-directory "adolc".
    Copy the library in a directory where the runtime system can find it.
    Possible locations are (maybe not complete):

    - Windows system directories, e.g. C:\WINDOWS or C:\WINDOWS\SYSTEM
    - directories covered by the PATH variable
    - the current directory (where the applications is started from)
    - the directoy of the executable (if different from the current
      directory)

Hints:
======

* It is possible to create a "static" library, too. Changes to "winflags_dll"
  are required to achieve this behaviour. The fourth line creates a variable
  named "AR" with the default value of "Change_Me". It should be set to the
  command name for building the static library. The value of "ARFLAGS" should
  be set accordingly.

* It should be possible to use ADOL-C from within graphical programming
  environments but we will not provide support for this constellation (due to
  missing test systems :-) )



We would appreciate very much if you could give us feedback in case of
problems and suggestions.

