Tcl 8.1 for Windows

by Scott Stanton
Scriptics Corporation
scott.stanton@scriptics.com

RCS: @(#) $Id: README,v 1.11 1999/04/24 01:46:54 stanton Exp $

1. Introduction
---------------

This is the directory where you configure and compile the Windows
version of Tcl.  This directory also contains source files for Tcl
that are specific to Microsoft Windows.

The information in this file is maintained on the web at:
    http://www.scriptics.com/support/howto/compile.html#win

2. Compiling Tcl
----------------

In order to compile Tcl for Windows, you need the following items:

	Tcl 8.1 Source Distribution (plus any patches)

	Visual C++ 2.x/4.x/5.x

In practice, the 8.1 release is built with Visual C++ 5.0

In the "win" subdirectory of the source release, you will find
"makefile.vc".  This is the makefile Visual C++ compiler.  You should
update the paths at the top of the file to reflect your system
configuration.  Now you can use "make" (or "nmake" for VC++) to build
the tcl libraries and the tclsh executable.

In order to use the binaries generated by these makefiles, you will
need to place the Tcl script library files someplace where Tcl can
find them.  Tcl looks in one of three places for the library files:

	1) The path specified in the environment variable "TCL_LIBRARY".

	2) In the lib\tcl8.1 directory under the installation directory
	   as specified in the registry:

		HKEY_LOCAL_MACHINE\SOFTWARE\Scriptics\Tcl\8.1

	3) Relative to the directory containing the current .exe.
	    Tcl will look for a directory "..\lib\tcl8.1" relative to the
	    directory containing the currently running .exe.

Note that in order to run tclsh81.exe, you must ensure that tcl81.dll
and tclpip81.dll are on your path, in the system directory, or in the 
directory containing tclsh81.exe.

Note: Tcl no longer provides support for Win32s.

For more information about Compiling Tcl on Windows, please see
    http://www.scriptics.com/support/howto/compile.html#win

This page includes a lengthy discussion of compiler macros necessary
when compiling Tcl extensions that will be dynamically loaded.

3. Test suite
-------------

This distribution contains an extensive test suite for Tcl.  Some of
the tests are timing dependent and will fail from time to time.  If a
test is failing consistently, please send us a bug report with as much
detail as you can manage.  Please use the form at
    http://www.scriptics.com/support/bugForm.html

In order to run the test suite, you build the "test" target using the
appropriate makefile for your compiler.

