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  • compat
  • doc
  • generic
  • libserialport
  • tclconfig
  • tests
  • win
  • aclocal.m4
  • ChangeLog
  • configure
  • LICENSE.serialport
  • license.terms
  • subdirs.m4

This is a sample extension showing an implementation of the Tcl Extension
Architecture (TEA).  Please see the webpage

for more details on TEA.  You can also read the enclosed "tea.pdf" document
for instructions on how to adapt this sample extension to your extension.

This package is a freely available open source package.  You can do
virtually anything you like with it, such as modifying it, redistributing
it, and selling it either in whole or in part.  See the file
"license.terms" for complete information.

The following is a short description of the files you will find in
the sample extension.	Makefile template.  The configure script uses this file to
		produce the final Makefile.

README		This file

README.sha	A description of the extension itself.

aclocal.m4	Generated file.  Do not edit.  Autoconf uses this as input
		when generating the final configure script.  See "tcl.m4"

configure	Generated file.  Do not edit.  This must be regenerated
		anytime or tclconfig/tcl.m4 changes.	Configure script template.  Autoconf uses this file as input
		to produce the final configure script. Package index template.  The configure script will use
		this file as input to create pkgIndex.tcl.

sample.c	Core Secure Hash Algorithm code.

sample.h	Header file for functions in the C files.

sha1.n		Unix nroff man page

tclsample.c	Implementation of new Tcl command "sha1".

tea.pdf		PDF file describing the current implementation of the
		Tcl Extension Architecture

tclconfig/	This directory contains various template files that build
		the configure script.  They should not need modification.

	install-sh	Program used for copying binaries and script files
			to their install locations.

	tcl.m4		Collection of Tcl autoconf macros.  Included by
			aclocal.m4 to define SC_* macros.


Building under most UNIX systems is easy, just run the configure script
and then run make. For more information about the build process, see
the tcl/unix/README file in the Tcl src dist. The following minimal
example will install the extension in the /opt/tcl directory.

	$ cd sampleextension
	$ ./configure --prefix=/opt/tcl
	$ make
	$ make install


The recommended method to build extensions under windows is to use the
Msys + Mingw build process. This provides a Unix-style build while
generating native Windows binaries. Using the Msys + Mingw build tools
means that you can use the same configure script as per the Unix build
to create a Makefile. See the tcl/win/README file for the URL of
the Msys + Mingw download.

If you have VC++ then you may wish to use the files in the win
subdirectory and build the extension using just VC++. These files have
been designed to be as generic as possible but will require some
additional maintenance by the project developer to synchronise with
the TEA and files. Instructions for using the
VC++ makefile are written in the first part of the


The installation of a TEA package is structure like so:

          /       \
        lib       bin
         |         |
   PACKAGEx.y   (dependent .dll files on Windows)
  pkgIndex.tcl (.so|.dll files)

The main .so|.dll library file gets installed in the versioned PACKAGE
directory, which is OK on all platforms because it will be directly
referenced with by 'load' in the pkgIndex.tcl file.  Dependent DLL files on
Windows must go in the bin directory (or other directory on the user's
PATH) in order for them to be found.