The install command



Usage

install [-interactive] [-debug] [-cc <c_compiler>] [-skip_c_compilation]

The install command is the installation program for SmallEiffel The GNU Eiffel Compiler.
This command (class install.e) is written entirely in Eiffel and is the one recommended for installing SmallEiffel The GNU Eiffel Compiler.

The install.e source code as well as the generated C code install.c are in the SmallEiffel directory.

The very first step in installing SmallEiffel is to unpack the SmallEiffel directory somewhere on disk. The second step is to set the "SmallEiffel" environment variable to the full path leading to the "SmallEiffel/sys/system.se" file. The last step is to compile the install.c file and to run it from the SmallEiffel directory.

The install command will do the rest of the work and will try to report possible problems. See the examples below.

Example for UNIX

As an example, we assume below that we want to install SmallEiffel in the directory /foo/SmallEiffel/. If you are using bash, add the following two lines to your .bashrc file:

export SmallEiffel=/foo/SmallEiffel/sys/system.se
export PATH=/foo/SmallEiffel/bin:$PATH

If you are using csh or tcsh, add the following two lines to your .cshrc file:

setenv SmallEiffel /foo/SmallEiffel/sys/system.se
setenv PATH /foo/SmallEiffel/bin:$PATH

Don't forget to open a new terminal window in order to take into account the new settings of the SmallEiffel and PATH variables. Then, in this new terminal window, just type the following commands:

cd /foo
gunzip se.tgz
tar xvf se.tar
cd SmallEiffel
make

You now just have to wait for the compiler installation to complete. Actually, it may take some time because all of the tools are recompiled from scratch using the Eiffel source code of SmallEiffel itself.

If you want to select manually the C compiler to be used (the default under UNIX is gcc), you should consider typing "make -interactive" instead of just "make" (see the description of the -interactive option below).



Example for Windows

The first step under Windows is to get a C compiler working on your computer. If you don't already have a C compiler installed, I recommend the LCC-Win32 compiler (a free C compiler system for Windows by Jacob Navia, http://www.cs.virginia.edu/~lcc-win32/ or http://www.q-software-solutions.com/lccwin32/).

At this point, it is assumed you have a C compiler installed. Further, we assume below that we want to install SmallEiffel in the C:\SmallEiffel directory. The most difficult step now is to set the "SmallEiffel" variable to the appropriate value, which is actually: "C:\SmallEiffel\sys\system.se". Setting environment variables is different from one Windows system to another. For example, on Windows NT you have to look in the system windows to change environment variables. On Windows 95, you have to add the following two lines to your AUTOEXEC.BAT file:

set SmallEiffel=C:\SmallEiffel\sys\system.se
set PATH=C:\SmallEiffel\bin:%PATH%

The last step is to open a DOS command window and to type the following commands:

C:
cd SmallEiffel
install.exe

You now just have to wait for the compiler installation to complete. Actually, it may take some time because all of the tools are recompiled from scratch using the Eiffel source code of SmallEiffel itself.



Example for other systems

On other systems, the very first step for installation is to compile the install.c file in order to run it.

Options

-interactive:
By default, the install command tries to determine automatically the system name as well as the C compiler name. When the -interactive flag is used, the user is interactively prompted for the system name and the C compiler to use as well as some other crucial information. When all of the information has been interactively gathered, the command prompts for confirmation before starting the remainder of the installation process automatically. Using the -interactive flag first is a good idea, to see the list of supported systems and C compilers.

-debug:
Displays a lot of information useful for debugging the installation process. It is also interesting if you are curious to see what the install command is really doing (or trying to do ;) ).

-cc <c_compiler>:
By default, install interactively asks for the C compiler to use. With this option specified, it skips this query and uses c_compiler. This c_compiler name must be one of the supported C compilers (e.g. gcc). This is mostly useful for system-specific installation scripts that execute install as part of it.

-skip_c_compilation:
Assumes that all commands are already compiled and their executables exist. This is useful only for binary distributions.

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Copyright © Dominique COLNET and Suzanne COLLIN - <SmallEiffel@loria.fr>
Last modified: Sun Jul 15 13:42:52 MET DST 2001