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# $Id: README,v 2.1 2007/04/12 18:10:13 arcanum Exp $
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Mfile - a simple Makefile generator for AVR-GCC
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================================================
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[See below for installation instructions]
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General
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-------
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The main purpose of this small application is to provide people an
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easy way to setup their project's Makefiles for <20>relatively standard<72>
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projects, so one could start using AVR-GCC without first studying the
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AVR's datasheet, plus the avr-libc documentation (really
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recommended!), /plus/ the <20>GNU make<6B> user manual.
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It cannot really release the potential programmer from eventually
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studying the <20>GNU make<6B> manual, but it can help to delay this part a
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few months.
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This generator works by using a Makefile template (the one that
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currently ships with WinAVR), load it into an editor buffer so the
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user can view the file and the changes, and then use a menu-driven
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approach to customize that buffer. Eventually, at the user's
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discretion, this editor buffer can be saved into a Makefile.
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(Optionally, the user can also edit the buffer directly, so it acts as
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a simple text editor.)
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While the Programmer's Notepad 2 (PN2) editor that ships with WinAVR
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intends to eventually implement this functionality some day, there are
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two reasons for this little project:
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. Act as a stop-gap measure so users will get something they can use
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right now, without waiting any longer.
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. Since this tool is written in Tcl/Tk, it is also portable to Unix
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systems, so Unix users (who'd never benefit from PN2) might use it.
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I do explicitly /not/ intend to make this tool the all-singing
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all-dancing scriptable Makefile generator that can emit any Makefile
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for any processor and compiler on earth. I really do not want to
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spend that many more hours into it, it was intented to be a quick and
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(hopefully not so) dirty tool that gets finished within a couple of
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evenings, and won't cost me another dozen of hours per months for
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supporting it, adding new features etc. If you feel this is worth
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porting somewhere else (like for the MSP430-GCC that is probably
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fairly close to AVR-GCC in terms of typical use), please pick it up,
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extend it, and maintain it separately. As always, I appreciate
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feedback, but reserve the right to ignore anything that tries to
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extend this tool above the outlined original purpose.
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Note that the Makefile template as shipped requires GNU make for
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various things (automagic dependency generation, some inference rules
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are written in gmake syntax as well). However, as Mfile only relies
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on a few macro names in the template, it should be relatively easy to
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modify the template for other <20>make<6B> dialects. The template (or input
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file upon <20>File -> Open<65>) will be parsed when reading it, and only
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those features actually present will be displayed in the <20>Makefile<6C>
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menu. So if e. g. people don't want to include AVRdude features, they
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can delete all related lines from the template. Also if someone (like
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Unix users, in particular those not using GNU make) want to modify the
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way the dependencies are generated (e. g. by using the traditional
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<EFBFBD>make depend<6E> approach), this should be completely unrelated.
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Prerequisites
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-------------
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Requires the Tcl and Tk toolkits in recent versions (no exact version
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known, probably any 8.x version is OK).
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As an alternative to the standard Tk wish interpreter, the tix
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toolkit's tixwish interpreter can be used. Under Unix systems, the
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look & feel is then closer to what Tk wish looks like under Windows.
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Installation on Unix
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--------------------
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Extract the archive into an arbitrary subdirectory, like
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/usr/local/share/mfile
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If a different directory is chosen, edit the setting of <20>prefix<69> on
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top of mfile.tcl to match the installation directory, or alternatively
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use the environment variable MFILE_HOME to override the default
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setting.
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If you prefer, create a symbolic link for convenience (so the
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application can be found along your default $PATH setting), like
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ln -s /usr/local/share/mfile/mfile.tcl /usr/local/bin/mfile
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Remember to edit the file makefile_template to suite your needs (e. g.
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default settings, adaptation to non-GNU make utilities).
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Upgrading an Mfile installation on WinAVR
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-----------------------------------------
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Starting with WinAVR 20040404, the WinAVR collection is shipping Mfile
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pre-installed. (After all, the WinAVR users have once been the
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primary reason to develop Mfile at all.)
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In order to upgrade the Mfile files supplied with WinAVR, extract the
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archive into some directory, and copy all the files into
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<winavr directory>\mfile
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That ought to be all that is to be done.
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----------------------------------------------------------------------
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Dresden, F. R. Germany, $Date: 2007/04/12 18:10:13 $
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Joerg Wunsch <j.gnu@uriah.heep.sax.de>
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