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169 lines
6.8 KiB
Groff
169 lines
6.8 KiB
Groff
BUILDING PYTHON 1.2 FOR THE MACINTOSH
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*************************************
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Python can be built on the Mac using either THINK C 6.0 (or 7.0), or
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CodeWarrior 5.0 (for 68K and PPC). In the past it has also been compiled
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with earlier versions of Think, but no guarantees are made that the
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source is still compatible with those versions. (Think C 5.0 appears
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to be OK.) Likewise, new compiler versions may effectively change the
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language accepted (or the library provided!) and thus cause problems.
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MPW is a special case -- it used to be possible to build Python as
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an MPW tool using MPW 3.2, and this may still work, but I haven't
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tried this lately. What I have tried, however, is building Python
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as a shared library for CFM-68K, using the Symantec C compiler for MPW.
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See subdirectory MPW and the README file there for more info.
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1. Using Think C 6.0 (or 7.0)
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=============================
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1.1 The directory structure
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---------------------------
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I duplicate the UNIX directory structure from the distribution. The
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subdirectories needed to compile are: Mac, Include, Parser, Python,
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Objects, Modules. (Don't bother with Grammar and the parser
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generator, nor with the Doc subdirectory.)
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For running and testing, you also need Lib and its subdirectories test
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and stdwin. You could also copy some things from the Demo/stdwin
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directory (unfortunately most other demos are UNIX specific and even
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many stdwin demos are).
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Make sure there is no config.c file in the Modules subdirectory (if
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you copy from a directory where you have done a UNIX build this might
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occur). Also don't use the config.h generated on UNIX.
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1.2 The project file
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--------------------
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I put all source files in one project, which I place in the parent
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directory of the source directories.
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1.2.1 Project type
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(This is the Set Project Type... dialog in the Project menu.)
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Set the creator to PYTH; turn on "far data"; leave "far code" and
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"separate strs" unchecked (they just serve to bloat the application).
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A partition size of 1000K should be enough to run the standard test
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suite (which requires a lot of memory because it stress tests the
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parser quite a bit) and most demos or medium-size applications. The
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interpreter will do basic things in as little at 500K but this may
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prevent parsing larger modules.
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1.2.2 Compiler options
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(This is the Options -> THINK C ... dialog in the Edit menu.)
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- Start with Factory Settings.
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- In the Prefix, remove #include <MacHeaders> and add
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#define HAVE_CONFIG_H
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- Choose any optimizer and debugger settings you like. - You
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can choose 4-byte ints if you want. This requires that you
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rebuild the ANSI and unix libraries with 4-bytes ints as well
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(better make copies with names like ANSI 32 bit). With 4-byte
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ints the interpreter is marginally bigger and somewhat (~10%)
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slower, but Python programs can use strings and lists with
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more than 32000 items (with 2-byte ints these can cause
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crashes). The range of Python integers is not affected (these
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are always represented as longs). In fact, nowadays I always
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use 4-byte integers, since it is actually rather annoying that
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strings >= 64K cause crashes.
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1.2.3 Files to add
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(This is the Add Files... dialog in the Source menu.)
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The following source files must be added to the project. I use a
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separate segment for each begin letter -- this avoids segment
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overflow, except for 'c', where you have to put either ceval.c or
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compile.c in a separate segment. You could also group them by
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subdirectory or function, but you may still have to split segments
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arbitrarily because of the 32000 bytes restriction.
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- From Mac: all .c files.
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- From Parser: acceler.c, grammar1.c,
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myreadline.c, node.c, parser.c, parsetok.c, tokenizer.c.
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- From Python: bltinmodule.c, ceval.c, cgensupport.c,
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compile.c, errors.c, getargs.c getopt.c, graminit.c, import.c,
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importdl.c, marshal.c, modsupport.c, mystrtoul.c,
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pythonmain.c, pythonrun.c, sigcheck.c, structmember.c,
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sysmodule.c, traceback.c (i.e. all .c files except dup2.c,
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fmod.c, frozenmain.c, getcwd.c, getmtime.c, memmove.c,
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sigcheck.c, strerror.c, strtod.c, thread.c)
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- From Objects: all .c files except xxobject.c.
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- From Modules: all the modules listed in config.c (in the Mac
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subdirectory) in the initializer for inittab[], before
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"ADDMODULE MARKER 2". Also add md5c.c if you add md5module.c,
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and regexpr.c if you add regexmodule.c. (You'll find
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macmodule.c in the Mac subdirectory, so it should already have
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been added in a previous step.) Note that for most modules,
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the source file is called <name>module.c, but for a few long
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module names it is just <module>.c. Don't add stdwinmodule.c
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yet,
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The following THINK C libraries must be added: from Standard
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Libraries, ANSI and unix; from Mac Libraries, MacTraps. I put each
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library in a separate segment. Also see my earlier remark on 4-byte
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ints.
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1.4 Adding STDWIN
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-----------------
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STDWIN is built in two separate projects: stdwin.pi contains the core
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STDWIN implementation from Ports/mac, textedit.pi contains the files
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from Packs/textedit. Use the same compiler options as for Python and
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the same general source setup (in a sister directory of the toplevel
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Python directory). Put all sources in the same segment. To
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stdwin.pi, also add Tools/strdup.c and Gen/wtextbreak.c.
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The two projects can now be added as libraries to the Python project.
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You must also add stdwinmodule.c and add "#define USE_STDWIN" to the
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Prefix in the compiler options dialog (this only affects macmain.c and
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config.c).
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Note that stdwinmodule.c contains an #include statement that
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references "stdwin.h" by relative path name -- if the stdwin toplevel
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directory is not a sibling of the python toplevel directory, you may
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have to adjust the number of colons in the pathname.
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1.5 Resources
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-------------
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Since I created them with ResEdit I have no text source of the
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resources needed to give the application an icon etc... You can copy
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the size, bundle, file reference and icon resources from the
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distributed Python application with ResEdit. THINK C automatically
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copies resources into the application file from a file
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<projectname>.rsrc.
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1.6 Think C 5.0
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---------------
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Tim Gilbert adds one note that will be helpful to future Think C 5.0
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users: When you have a really big project like python, and you want to
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compile and run it, if you just hit Command-R, often Think C will
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compile the remaining files, think for a moment, and then give you a
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warning "internal error(ZREF)--please remove objects." Don't listen
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to it. It is lying. What you should do instead is "Check Link..."
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and _then_ hit Run. Why? Ask Symantec.
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2. Using MicroWerks CodeWarrior 5.0
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===================================
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Essentially, follow the instructions for Think C.
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XXX Should at least list the project options.
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--Guido van Rossum, CWI, Amsterdam <Guido.van.Rossum@cwi.nl>
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<URL:http://www.cwi.nl/cwi/people/Guido.van.Rossum.html>
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