wxWidgets/wxPython/BUILD.win32.txt
Robin Dunn 926bb76c2a Some tweaks and cleanup.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9946 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2001-04-30 18:37:26 +00:00

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Building wxPython on Win32
--------------------------
Building wxPython for use on win32 systems is a fairly simple process
consisting of just a few steps. However depending on where you get
your sources from and what your desired end result is, there are
several permutations of those steps. At a high level the basic steps
are:
1. Get the wxWindows sources
2. Build the wxWindows DLL
3. Get the wxPython sources
4. Build and Install wxPython
We'll go into more detail of each of these steps below, but first a
few bits of background information on tools.
I use a tool called SWIG (http://www.swig.org) to help generate the
C++ sources used in the wxPython extension module. However you don't
need to have SWIG unless you want to modify the *.i files. If you do
you'll want to have version 1.1-883 of SWIG and you'll need to change
a flag in the setup.py script as described below.
I use the new Python Distutils tool to build wxPython. It is included
with Python 2.0, but if you want to use Python 1.5.2 or 1.6 then
you'll need to download and install Distutils 1.0 from
http://www.python.org/sigs/distutils-sig/
I use Microsoft Visual C++ 6.0 (5.0 with the service packs should work
also) to compile the wxPython C++ sources. Since I am using Distutils
it should be easier now to build with other win32 compilers such as
the free mingw32 or Borland compilers, but I havn't tried them yet.
If anybody wants to try it I'll take any required patches for the
setup script and for these instructions.
And now on to the fun stuff...
1. Get the wxWindows sources
----------------------------
A. There are a few possible ways to get sources for wxWindows. You
can download a released version from http://wxwindows.org/ or you
can get current development sources from the CVS server. (Some
information about annonymous CVS access is at
http://wxwindows.org/cvs.htm.) The advantage of using CVS is that
you can easily update as soon as the developers check in new
sources or fixes. The advantage of using a released version is
that it usually has had more testing done. You can decide which
method is best for you.
B. You'll usually want to use wxWindows sources that have the same
version number as the wxPython sources you are using. (Another
advantage of using CVS is that you'll get both at the same time.)
C. Once you get the sources be sure to put them in a path without a
space in it (i.e., NOT c:\Program Files\wx) and set an environment
variable named WXWIN to this directory. For example:
mkdir \wx2
cd \wx2
unzip wxMSW-2.2.2.zip
set WXWIN=c:\wx2
You'll probably want to add that last line to your autoexec.bat or
System Properties depending on the type of system you are on.
D. Change to the wx2\include\wx\msw directory and copy setup0.h to
setup.h and then edit setup.h. This is how you control which parts
of wxWindows are compiled into or left out of the build, simply by
turning options on or off. At a minimum you should set the
following:
wxUSE_NEW_GRID 1
wxUSE_GLOBAL_MEMORY_OPERATORS 0
wxUSE_LIBTIFF 1
wxDIALOG_UNIT_COMPATIBILITY 0
I also turn off the following as they are not currently used in
wxPython. There are probably others that can be turned off to
help save space, but I havn't investigated all the potential
configurations yet. Please note that wxPython doesn't (yet) check
these flags for its own build, so if you turn off something that
wxPython expects then you'll get link errors later on.
wxUSE_DIALUP_MANAGER 0
wxUSE_DYNLIB_CLASS 0
wxUSE_DOC_VIEW_ARCHITECTURE 0
wxUSE_PLOT 0
wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW 0
** NEW **
Be sure that wxUSE_GLCANVAS is defined to be 0 as wxPython now
keeps its own copy of the glcanvas sources and expects that it is
not in the main library. This is done to reduce the number of
dependant DLLs on the core library and therefore help reduce
startup time.
2. Build the wxWindows DLL
---------------------------
A. Although MSVC project files are provided I always use the makefiles
to build wxWindows because by default the flags are compatible with
Python, (and I make sure they stay that way.) You would have to
edit the project files a bit to make it work otherwise.
B. There are three different types of wxWindows DLLs that can be
produced by the VC makefile simply by providing a flag on the nmake
command-line, I call the three types DEBUG, FINAL, and HYBRID.
(The last one is brand new, you'll need my version of the 2.2.2
sources to get the HYBRID capability.) Here are some more details:
DEBUG Specified with "FINAL=0" and produces a DLL named
wx[version]d.dll. This DLL is compiled with full
debugging information and with the __WXDEBUG__ set which
enables some debugging-only code in wxWindows such as
assertions and failure log messages. The /MDd flag is
used which means that it is linked with the debugging
version of the C runtime library and also that you must
use the debugging version of Python, (python_d.exe and
pythonXX_d.dll) which also means that all extensions
loaded by Python should also have the _d in the name.
With this option you can use the MSVC debugger to trace
though the Python interpreter, as well as the code for the
wxPython extension and the wxWindows DLL.
FINAL Specified with "FINAL=1" and produces a DLL named
wx[version].dll. This DLL is compiled with optimizations
turned on and without debugging information and without
__WXDEBUG__. The /MD flag is used which means that you
can use this version with the standard python.exe. This
is the version that I use when making the binary installer
for win32.
HYBRID Specified with "FINAL=hybrid" and produces a DLL named
wx[version]h.dll. This DLL is almost the same as the
DEBUG version except the /MD flag is used which means that
you can use the standard python.exe but you still get the
debugging info and the __WXDEBUG__ code enabled. With the
debugger you can trace through the the code for the
wxPython extension and the wxWindows DLL, but not the
Python interpreter. You might use this version when you
want to deploy a wxPython app with the __WXDEBUG__ code
enabled. I use this mode most of the time during
development simply because it's easier than having to
remember to type python_d all the time.
Since different DLL names and object file directories are used you
can build all three types if you like.
C. Change to the wx2\src\msw directory and type the following command,
using the value for FINAL that you want:
nmake -f makefile.vc dll pch FINAL=hybrid
Your machine will then crunch away for possibly a long time,
depending on your hardware, and when it's done you should have a
DLL and some library files in \wx2\lib.
D. You'll either need to add \wx2\lib to the PATH or copy the DLL file
to a directory already on the PATH so the DLL can be found at runtime.
E. You can test your build by changing to one of the directories under
\wx2\samples or \wx2\demos and typing (using the right FINAL flag):
nmake -f makefile.vc FINAL=hybrid WXUSINGDLL=1
and then executing the resulting .exe file.
3. Get the wxPython sources
---------------------------
A. You have the same options (and same advantages/disadvantages) for
getting the wxPython source, either a released snapshot or from
CVS. The released version file is named wxPython-[version].tar.gz
and is available at http://wxpython.org/download.php. You can use
WinZip to unpack it if you don't have tar and gzip. If you want to
use CVS you'll find wxPython in the wxWindows CVS tree (see above)
in the wxWindows/wxPython directory.
4. Build and Install wxPython
-----------------------------
A. As mentioned previouslly, wxPython is built with the standard
Python Distutils tool. If you are using Python 2.0c1 or later you
are all set, otherwise you need to download and install Distutils
1.0 from http://www.python.org/sigs/distutils-sig/.
B. Change to the root wxPython directory and look at the setup.py
file. This is the script that configures and defines all the
information that Distutils needs to build wxPython. There are some
options near the begining of the script that you may want or need
to change based on what options you have selected up to this point,
(type of DLL built, sources from tar.gz or from CVS, etc.) You can
either change these flags directly in setup.py or supply them on
the command-line.
BUILD_GLCANVAS Set to zero if you don't want to build the
Open GL canvas extension module.
BUILD_OGL Set to zero if you don't want to build the
Object Graphics Library extension module.
BUILD_STC Set to zero if you don't want to build the
wxStyledTextCtrl (the Scintilla wrapper)
extension module.
USE_SWIG If you have edited any of the *.i files you
will need to set this flag to non-zero so SWIG
will be executed to regenerate the wrapper C++
and shadow python files.
IN_CVS_TREE If you are using the CVS version of the
wxWindows and wxPython sources then you will
need to set this flag to non-zero. This is
needed because some source files from the
wxWindows tree are copied to be under the
wxPython tree in order to keep Distutils happy.
With this flag set then setup.py will
automatically keep these copied sources up to
date if the original version is ever updated.
If you are using the tar.gz version of the
Python sources then these copied sources are
already present in your source tree.
C. To build and install wxPython you simply need to execute the
setup.py script. If you have more than one version of Python
installed, be sure to execute setup.py with the version you want to
build wxPython for.
Depending on what kind of wxWindows DLL you built there are
different command-line parameters you'll want to pass to setup (in
addition to possibly one or more of the above):
FINAL: python setup.py install
DEBUG: python setup.py build --debug install
HYBRID: python setup.py HYBRID=1 install
D. At this point you should be able to change into the wxPython\demo
directory and run the demo:
python demo.py
E. If you would like to make a test build that doesn't overwrite the
installed version of wxPython you can do so with one of these
commands instead of the install command above:
FINAL: python setup.py build_ext --inplace
DEBUG: python setup.py build_ext --debug --inplace
HYBRID: python setup.py HYBRID=1 build_ext --inplace
This will build the wxPython package in the local wxPython
directory instead of installing it under your Python installation.
To run using this test version just add the base wxPython source
directory to the PYTHONPATH:
set PYTHONPATH=c:\wx2\wxPython
cd c:\wx2\wxPython\demo
python demo.py
That's all folks!
-----------------
robin@alldunn.com