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Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	1	<HTML>
				2	<HEAD>
				3	<TITLE>Building Mac Python from source</TITLE>
				4	</HEAD>
				5	<BODY>
				6	<H1>Building Mac Python from source</H1>
				7	<HR>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	8
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	9	This document explains how to build MacPython from source. This is
				10	necessary if you want to write extension modules for 68K Python, and
				11	currently also probably the easiest way to build PPC extension
				12	modules. Building Python is not something to be undertaken lightly,
				13	the process is not very streamlined so you need a reasonable working
				14	knowledge of the CodeWarrior development environment, a good net
				15	connection and probably quite some time too. <p>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	16
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	17	The information density in this file is high, so you should probably
				18	print it and read it at your leasure. Most things are explained only
				19	once (and probably in the wrong place:-). <p>
				20
				21	I am very interested in feedback on this document, contact me at <A
				22	HREF="mailto:jack@cwi.nl"><jack@cwi.nl></A> or send your
				23	comments to the <A
				24	HREF="http://www.python.org/sigs/pythonmac-sig/">Mac Python Special
				25	Interest Group</A>.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	26
				27	<H2>What you need.</H2>
				28
				29	The following things you definitely need:
				30
				31	<UL>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	32
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	33	<LI> You need a MacPython source distribution, of course. You can
				34	obtain one from <A
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	35	HREF="ftp://ftp.cwi.nl/pub/jack/python/mac">ftp://ftp.cwi.nl/pub/jack/python/mac</A>
				36	or from the companion webpage at <A HREF="http://www.cwi.nl/~jack/macpython.html">
				37	http://www.cwi.nl/~jack/macpython.html</A> (which has up-to-date links to the other
				38	packages needed too)
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	39	and possibly also from the standard <A
				40	HREF="ftp://ftp.python.org/pub/python/mac">python.org ftp
				41	site</A>. Everything you need is also included in the standard Python
				42	source distribution, but the organization is different. Look in
				43	directory <code>Mac/mwerks/projects</code> for the project files and
				44	related stuff.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	45
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	46	<LI> You need MetroWerks CodeWarrior. The current distribution has
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	47	been built with CodeWarrior Pro 2. Ordering information is
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	48	available on the <A HREF="http://www.metrowerks.com/">MetroWerks
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	49	homepage</A>. Building Python with MPW or Think/Symantec C is
				50	probably impossible without major surgery.
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	51
				52	<LI> You need GUSI, the Grand Unified Socket Interface, by Matthias
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	53	Neeracher. The original CWGUSI is
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	54	obtainable from <A
Jack Jansen	f3dd5aa	1996-12-23 17:29:51 +0000	[diff] [blame]	55	HREF="ftp://sunsite.cnlab-switch.ch/software/platform/macos/src">
Jack Jansen	e66b8c8	1997-05-29 14:57:07 +0000	[diff] [blame]	56	ftp://sunsite.cnlab-switch.ch/software/platform/macos/src</A>.
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	57	At the moment Python is built with a slightly modified version of GUSI,
Jack Jansen	e66b8c8	1997-05-29 14:57:07 +0000	[diff] [blame]	58	these modifications are available in folder <code>Python:Mac:GUSI-mods</code>.
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	59
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	60	</UL>
				61
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	62	<A NAME="optional">The MacPython project files are configured to
				63	include a plethora of optional modules</A>, and these modules need a
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	64	number of extra packages. To use the project files as-is you have to
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	65	download these packages too. PPC and CFM68K Python have all such modules as
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	66	dynamically loaded modules, so if you don't need a certain package it
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	67	suffices to just refrain from builing the extension module. For static 68K
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	68	Python things are a bit more complicated: you have to edit the
				69	interpreter project file to remove the reference to the module (and
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	70	the libraries it uses), and edit the <code>Mac:mwerks:mwerks_nonshared_config.h</code>
				71	file to remove the <code>USE_...</code> line. Here are the locations for the various things
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	72	you need:
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	73
				74	<UL>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	75
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	76	<LI> Tcl and Tk can be obtained from <A
				77	HREF="ftp://ftp.smli.com/pub/tcl/mac/">ftp://ftp.smli.com/pub/tcl/mac/</A>.
Jack Jansen	44a8931	1997-12-23 22:56:25 +0000	[diff] [blame]	78	The current distributions, Tcl 8.0p2 and Tk 8.0p2 need a bit of work,
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	79	see the section on <A HREF="#tcltk">building Tcl/Tk Python</A>
				80	below. Get the "full source" distribution, which includes MoreFiles.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	81
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	82	<LI> Waste, a TextEdit replacement written by Marco Piovanelli, <A
				83	HREF="mailto:piovanel@kagi.com"><piovanel@kagi.com></A>. Python
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	84	was built using version 1.3, which you can obtain from <A
				85	HREF="http://www.boingo.com/waste"><http://www.boingo.com/waste></A>
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	86	and various other places.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	87
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	88	<LI> Gdbm library for the Mac. Available from Jack's Mac software page at
				89	<A HREF="http://www.cwi.nl/~jack/macsoftware.html">
				90	http://www.cwi.nl/~jack/macsoftware.html</A> and <A HREF="ftp://ftp.cwi.nl/pub/jack/mac">
				91	ftp://ftp.cwi.nl/pub/jack/mac</A>.
				92
				93	<LI> JPEG library by the Independent JPEG Group. A version including
				94	Mac projects can be found at Jack's page mentioned above.
				95	The most recent JPEG library can always be obtained from <A
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	96	HREF="ftp://ftp.uu.net/graphics/jpeg/">ftp://ftp.uu.net/graphics/jpeg/</A>.
				97
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	98	<LI> The netpbm/pbmplus, libtiff, zlib and png libraries. The netpbm distribution
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	99	(which includes libtiff) is generally available on Internet ftp
				100	servers. For Python pbmplus, an older incarnation of netpbm, is
				101	functionally identical to netpbm, since Python only uses the library
				102	and not the complete applications. A distribution with correct
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	103	projects and library source only is available from, you guessed it, Jack's Mac software
				104	page mentioned above.
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	105
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	106	</UL>
				107
				108	<H2>Setting Up</H2>
				109
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	110	Now that you have collected everything you should start with building
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	111	the various parts. If you don't want to fix
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	112	access paths try to set things up as follows:
				113
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	114	<PRE>
				115	Top-level-folder:
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	116	CWGUSI
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	117	imglibs
				118	libjpeg
				119	pbmplus
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	120	libtiff
				121	zlib
				122	libpng
				123	gdbm
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	124	Python
Jack Jansen	3261719	1997-08-19 14:01:16 +0000	[diff] [blame]	125	Tcl/Tk Folder
				126	tcl8.0
				127	tk8.0
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	128	MoreFiles 1.4.3
				129	Waste 1.3 distribution (if you want waste)
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	130	</PRE>
				131
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	132	First build GUSI. If you didn't get the python-specific GUSI you have to
				133	move the files from the "CWGUSI-mods" to the right
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	134	place in the CWGUSI distribution folder. Build the MSL version for your
				135	platform (ppc, 68k, cfm68k). <p>
Jack Jansen	16e99c0	1996-09-07 17:11:26 +0000	[diff] [blame]	136
				137	Next, in
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	138	<code>MoreFiles</code>, <code>libjpeg</code>, <code>pbmplus</code>,
				139	<code>zlib</code>, <code>libpng</code>, <code>gdbm</code>,
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	140	and<code>libtiff</code> you build all projects. Usually the projects are in "mac"
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	141	subfolders, sometimes they are in the main folder. Tcl/tk is a special
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	142	case, see below. Of course, if you are only interested in one of
				143	static 68K, CFM68K or PPC you can skip building the other libraries.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	144
				145	<H2><A NAME="tcltk">Building Tcl/Tk</H2>
				146
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	147	You need to make some minor changes to the Tcl/Tk 8.0
				148	distribution. You should make the CW Pro projects (in the mac subfolders).
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	149	<UL>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	150
Jack Jansen	3261719	1997-08-19 14:01:16 +0000	[diff] [blame]	151	<LI> There are no cfm68k targets. You make these by copying the 68k targets,
				152	setting the "68k target" to "cfm68k library" and changing the output filename,
				153	and changing the prefix
				154	header filename in the C/C++ settings panel to "MW_???HeaderCFM68K".
Jack Jansen	e66b8c8	1997-05-29 14:57:07 +0000	[diff] [blame]	155
Jack Jansen	3261719	1997-08-19 14:01:16 +0000	[diff] [blame]	156	<LI> I had to add Search.c (from MoreFiles) to the tcl library projects. I don't
				157	understand why this is, but it seemed to cure the problems I had.
Jack Jansen	f3dd5aa	1996-12-23 17:29:51 +0000	[diff] [blame]	158
				159	<LI> Note that if you use a different release of Tcl and Tk than the ones
				160	I have used you may have to adapt the Python <code>tkresources.rsrc</code> file.
				161	This is easiest done by building <code>SimpleTk</code> and copying the TEXT, ICON
				162	and CRSR resources from it to <code>tkresources.rsrc</code>. This allows
				163	the <code>_tkinter</code> module to work without an installed Tk/Tcl on your
				164	machine.
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	165
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	166	</UL>
				167
Jack Jansen	f3dd5aa	1996-12-23 17:29:51 +0000	[diff] [blame]	168	Build first the Tcl library, then
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	169	SimpleTcl (test it by typing <code>ls -l</code> in the window you get)
				170	then the Tk library, then SimpleTk (which can again be tested with
				171	<code>ls -l</code>). If this all worked you are all set to try
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	172	building Python.
				173
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	174	<H2>Building Waste</H2>
				175
				176	You do not need to build the Waste libraries, as Python includes the
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	177	source modules themselves.
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	178
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	179	<H2>The organization of the Python source tree</H2>
				180
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	181	Time for a short break, while we have a look at the organization of
				182	the Python source tree. At the top level, we find the following
				183	folders:
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	184
				185	<DL>
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	186	<DT> build.macstand
				187	<DD> This is where you build static 68K interpreter, and possibly (if
				188	you want them) static PPC and fat interpreters. There is also a project
				189	here that builds smaller versions of the static interpreter.
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	190
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	191	<DT> build.mac
				192	<DD> This is where you build the CFM68K, PPC and fat shared library,
				193	interpreter and applet framework. The fat targets are deposited in the
				194	main folder (one level up), the others, which are intermediate results
				195	really, are left here.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	196
				197	<DT> Demo
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	198	<DD> Demo programs that are not Mac-specific. Some of these may not
				199	work, the file <code>README-Mac</code> has some details.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	200
				201	<DT> Extensions
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	202	<DD> Extensions to the interpreter that are not Mac-specific. Contains
				203	only the <code>img</code> extension in this distribution. Extensions
Jack Jansen	a2139fe	1998-02-25 15:40:35 +0000	[diff] [blame]	204	are not always built here, as they are on Unix, but sometimes incorporated in
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	205	the core interpreter or built as plugin modules.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	206
				207	<DT> Grammar
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	208	<DD> The Python grammar. Included for reference only, you cannot build
				209	the parser on a Mac.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	210
				211	<DT> Include
				212	<DD> Machine-independent header files.
				213
				214	<DT> Modules
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	215	<DD> Machine-independent optional modules. Not all of these will work
				216	on the Mac.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	217
				218	<DT> Objects
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	219	<DD> Machine-independent code for various objects. Most of these are
				220	not really optional: the interpreter will not function without them.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	221
				222	<DT> Parser
				223	<DD> The Python parser (machine-independent).
				224
				225	<DT> PlugIns
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	226	<DD> This is where you build the PPC and CFM68K dynamically-loaded plugin modules.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	227
				228	<DT> Python
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	229	<DD> The core interpreter. Most files are machine-independent, some
				230	are unix-specific and not used on the Mac.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	231
				232	<DT> Tools
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	233	<DD> Tools for python developers. Contains <code>modulator</code>
				234	which builds skeleton C extension modules and <code>bgen</code> which
				235	generates complete interface modules from information in C header
				236	files. There are some readme files, but more documentation is sorely
				237	needed.
				238
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	239	</DL>
				240
				241	All the mac-specific stuff lives in the <code>Mac</code> folder:
				242	<DL>
				243
				244	<DT> Compat
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	245	<DD> Unix-compatability routines. Some of these are not used anymore,
				246	since CWGUSI provides a rather complete emulation, but you may need
				247	these if you are trying to build a non-GUSI python.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	248
				249	<DT> Demo
				250	<DD> Mac-specific demo programs, some of them annotated.
				251
				252	<DT> Include
				253	<DD> Mac-specific but compiler-independent include files.
				254
				255	<DT> Lib
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	256	<DD> Mac-specific standard modules. The <code>toolbox</code> folder
				257	contains modules specifically needed with various MacOS toolbox
				258	interface modules.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	259
				260	<DT> Modules
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	261	<DD> Mac-specific builtin modules. Theoretically these are all
				262	optional, but some are rather essential (like
				263	<code>macmodule</code>). A lot of these modules are generated with
				264	<code>bgen</code>, in which case the bgen input files are included so
				265	you can attempt to regenerate them or extend them.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	266
				267	<DT> MPW
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	268	<DD> MPW-specific files. These have not been used or kept up-to-date
				269	for a long time, so use at your own risk.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	270
				271	<DT> mwerks
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	272	<DD> Mwerks-specific sources and headers. Contains glue code for
				273	Pythons shared-library architecture, a replacement for
				274	<code>malloc</code> and a directory with various projects for building
				275	variations on the Python interpreter. The <code>mwerks_*.h</code>
				276	files here are the option-setting files for the various interpreters
				277	and such, comparable to the unix command-line <code>-D</code> options
				278	to the compiler. Each project uses the correct option file as its
				279	"prefix file" in the "C/C++ language" settings. Disabling optional
				280	modules (for the 68K interpreter), building non-GUSI interpreters and
				281	various other things are accomplished by modifying these files (and
				282	possibly changing the list of files included in the project window, of
				283	course).
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	284
				285	<DT> Python
				286	<DD> Mac-specific parts of the core interpreter.
				287
				288	<DT> Resources
				289	<DD> Resource files needed to build the interpreter.
				290
				291	<DT> Scripts
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	292	<DD> A collection of various mac-specific Python scripts. Some are
				293	essential, some are useful but few are documented, so you will have to
				294	use your imagination to work them out.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	295
				296	<DT> Unsupported
				297	<DD> Modules that are not supported any longer but may still work with a little effort.
				298	</DL>
				299
				300	<H2>Building the 68K interpreter</H2>
				301
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	302	If you have all the optional libraries mentioned <A
				303	HREF="#optional">above</A> loaded buildin Python for 68K macs is a
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	304	breeze: open the project in the folder <code>build.macstand</code> and
				305	build the 68K target. Do <em>not</em> run it yet, this will possibly
				306	result in a garbled preferences file. <p>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	307
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	308	First remove the <code>Python XXX preferences</code> file from your
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	309	preference folder, only if you had an older version of Python
				310	installed. (this is also what you do if you did not heed the last
				311	sentence of the preceeding paragraph). Next, move the interpreter to
				312	the main Python folder (up one level) and run it there. This will
				313	create a correct initial preferences file. You are now all set, and
				314	your tree should be completely compatible with a binary-only
				315	distribution. Read the release notes
				316	(<code>Relnotes-somethingorother</code>) and
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	317	<code>ReadMe</code> in the <code>Mac</code> folder.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	318
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	319	<H2>Building the PPC and CFM68K interpreter</H2>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	320
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	321	First you build the interpreter, core library and applet skeleton in
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	322	folder <code>build.mac</code>. The projects are all linked together, so
				323	building the fat targets in <code>Python.prj</code> and
				324	<code>PythonApplet.prj</code> will result in everything being built. The
				325	resulting applications and fat shared library are deposited in the main
				326	Python folder. For completeness sake here is a breakdown of the
				327	projects:
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	328
				329	<DL>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	330
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	331	<DT> PythonCore (with subprojects PythonCorePPC and PythonCoreCFM68K)
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	332	<DD> The shared library that contains the bulk of the interpreter and
				333	its resources. It is a good idea to immedeately put an alias to this
				334	shared library in the <code>Extensions</code> folder of your system
				335	folder. Do exactly that: put an <em>alias</em> there, copying or
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	336	moving the file will cause you grief later if you rebuild the library and
				337	forget to copy it to the extensions folder again.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	338
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	339	<DT> Python
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	340	<DD> The interpreter. This is basically a routine to call out to the
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	341	shared library. <p>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	342
Jack Jansen	061ac50	1996-10-22 15:27:56 +0000	[diff] [blame]	343	<DT> PythonAppletPPC
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	344	<DD> The applet skeleton application. Very similar to
				345	<code>PythonPPC</code>, but it calls to a different entrypoint in the
				346	core library. The <code>mkapplet</code> script will copy this complete
				347	file, and add a <code>'PYC '</code> with the module to generate an
				348	applet. <p>
				349
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	350	</DL>
				351
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	352	After creating the alias to <code>PythonCore</code> you remove any old
Jack Jansen	061ac50	1996-10-22 15:27:56 +0000	[diff] [blame]	353	<code>Python XXX Preferences</code> file from the <code>Preferences</code> folder
				354	(if you had python installed on your system before) and run the interpreter once
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	355	to create the correct preferences file. <p>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	356
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	357	Next, you have to build the extension modules in the
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	358	<code>PlugIns</code> folder. The <code>PlugIns.ppc</code> project has all the
				359	other projects as subprojects and builds everything. After all
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	360	the dynamically loaded modules are built you have to create a number
				361	of aliases: some modules live together in a single dynamic
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	362	library. Run the <code>ConfigurePython.py</code> script from
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	363	<code>Mac:scripts</code> to create the aliases. <p>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	364
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	365	Finally, you must build the standard applets:
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	366	<code>EditPythonPrefs</code>, <code>BuildApplet</code>, etc. This is
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	367	easiest done with the <code>fullbuild</code> script from
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	368	<code>Mac:scripts</code>. <p>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	369
				370	<BLOCKQUOTE>
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	371	Actually, the <code>fullbuild</code> script can be used to build
				372	everything, but you need a fully-functional interpreter before you can
				373	use it (and one that isn't rebuilt in the process: you cannot rebuild
				374	a running program). You could copy the 68K interpreter to a different
				375	place and use that to run fullbuild, or use the standalone PPC python
				376	for this. I tend to keep a standalone interpreter in a safe place for
Jack Jansen	e66b8c8	1997-05-29 14:57:07 +0000	[diff] [blame]	377	this use only. <p>
				378
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	379	</BLOCKQUOTE>
				380
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	381	You are all set now, and should read the release notes and
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	382	<code>ReadMe</code> file from the <code>Mac</code> folder.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	383
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	384	<H2>Rebuilding <code>.exp</code> files for PPC and CFM68K</H2>
				385
				386	Occasionally it may be necessary to rebuild your PythonCore <code>.exp</code>
				387	file, a file that controls which symbols are exported by your PythonCore
				388	shared library. Rebuild it if you get unexpected undefined symbols when you
				389	are building a plugin module. <p>
				390
				391	Rebuilding the .exp file is done by first removing the file and removing the
				392	reference to it in the project (in the "config" section). Next, build PythonCore.
				393	This will create a new .exp file. Edit this file to remove the references to
				394	the symbols <code>__initialize</code>, <code>__terminate</code>, <code>setjmp</code>,
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	395	<code>longjmp</code>, <code>main</code> and (for PPC) <code>__ptmf_null</code> or (for
				396	CFM68K) <code>__start</code> and <code>dummy_init_routine</code>.
				397	Next, add the .exp file to the project
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	398	again and rebuild PythonCore. <p>
				399
				400	This rather convoluted procedure is needed to ensure that plugin modules don't
				401	accidentally link with those entrypoints from PythonCore, which will not work because
				402	those routines have to be in the same code fragment as they are used from.
				403
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	404	<H2>Odds and ends</H2>
				405
				406	Some remarks that I could not fit in elsewhere:
				407
				408	<UL>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	409
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	410	<LI> It may be possible to use the <code>PythonCore</code> shared
				411	library to embed Python in another program, if your program can live
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	412	with using GUSI for I/O. Use PythonCore in stead of your MSL C library
Jack Jansen	4c1e56c	1996-08-06 16:16:20 +0000	[diff] [blame]	413	(or, at the very least, link it before the normal C library). Let me
				414	know whether this works.
				415
				416	<LI> It is possible to build PPC extension modules without building a
				417	complete Python. Take the binary distribution, add folders
				418	<code>Include</code>, <code>Mac:Include</code> and
				419	<code>Mac:mwerks</code> from the source distribution and you should be
				420	all set. A template for a dynamic module can be found in
Jack Jansen	3412c5d	1997-08-27 14:08:22 +0000	[diff] [blame]	421	<code>xx.prj</code>.
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	422
				423	<LI> The Python shared library architecture is a variant of the architecture
				424	described as "application with shared libraries and dropins" in the MetroWerks
				425	"Targeting MacOS" documentation. The Python Application and applet-template use
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	426	the <code>MSL AppRuntime.Lib</code> runtime library (with properly set CFM
				427	initialization and termination routines). PythonCore uses <code>MSL Runtime.Lib</code>,
				428	which is really intended for standalone programs but which we fool into working by
				429	providing a dummy main program.
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	430	It is linked statically into PythonCore (and exported to the applications and plugins)
				431	so we do not have to distribute yet another shared library. Plugin modules use
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	432	<code>MSL ShlibRuntime.Lib</code> (not the dropin runtime: modules are never unloaded)
				433	and obtain the rest from PythonCore. PythonCore uses a
Jack Jansen	27b10ec	1996-08-23 15:44:18 +0000	[diff] [blame]	434	non-standard initialization entry point, <code>__initialize_with_resources</code>, to
Jack Jansen	1473af7	1997-05-07 15:43:38 +0000	[diff] [blame]	435	be able to obtain resources from the library file later on. Plugins can do the same
				436	(_tkinter does) or use the standard <code>__initialize</code> entry point.
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	437
				438
Jack Jansen	6ad8d13	1997-01-15 16:53:37 +0000	[diff] [blame]	439	</UL>
Jack Jansen	8f2d802	1996-08-05 15:34:45 +0000	[diff] [blame]	440	</BODY>
				441	</HTML>