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wxWidgets/wxPython/docs/BUILD.html
Robin Dunn 2e957aaeb1 Build and Install steps updated 
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<?xml version="1.0" encoding="iso-8859-1" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta name="generator" content="Docutils 0.3.1: http://docutils.sourceforge.net/" />
<title>Building wxPython 2.5 for Development and Testing</title>
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</head>
<body>
<div class="document" id="building-wxpython-2-5-for-development-and-testing">
<h1 class="title">Building wxPython 2.5 for Development and Testing</h1>
<p>This file describes how I build wxWidgets and wxPython while doing
development and testing, and is meant to help other people that want
to do the same thing. I'll assume that you are using either a CVS
snapshot from <a class="reference" href="http://wxWidgets.org/snapshots/">http://wxWidgets.org/snapshots/</a>, a checkout from CVS, or
one of the released wxPythonSrc-2.5.* tarballs. I'll also assume that
you know your way around your system, the compiler, etc. and most
importantly, that you know what you are doing! ;-)</p>
<p>If you want to also install the version of wxPython you build to be in
your site-packages dir and be your default version of wxPython, then a
few additional steps are needed, and you may want to use slightly
different options. See the <a class="reference" href="INSTALL.html">INSTALL</a> document for more details. If
you only use the instructions in this <a class="reference" href="BUILD.html">BUILD</a> document file then you
will end up with a separate installation of wxPython and you can
switch back and forth between this and the release version that you
may already have installed.</p>
<p>If you want to make changes to any of the <tt class="literal"><span class="pre">*.i</span></tt> files, (SWIG interface
definition files,) or to regenerate the extension sources or renamer
modules, then you will need an up to date version of SWIG. Either get
and build the current CVS version, or version 1.3.20, and then apply
the patches in wxPython/SWIG. See the README.txt in that dir for
details about each patch and also info about those that may already
have been applied to the SWIG sources. If you install this build of
SWIG to a location that is not on the PATH (so it doesn't interfere
with an existing SWIG install for example) then you can set a setup.py
command-line variable named SWIG to be the full path name of the
executable and the wxPython build will use it. See below for an
example.</p>
<p>In the text below I'll use WXDIR with environment variable syntax
(either $WXDIR or %WXDIR%) to refer to the top level directory were
your wxWidgerts and wxPython sources are located. It will equate to
whereever you checked out the wxWidgets module from CVS, or untarred
the wxPythonSrc tarball to. You can either substitute the $WXDIR text
below with your actual dir, or set the value in the environment and
use it just like you see it below.</p>
<div class="section" id="building-on-unix-like-systems-e-g-linux-and-os-x">
<h1><a name="building-on-unix-like-systems-e-g-linux-and-os-x">Building on Unix-like Systems (e.g. Linux and OS X)</a></h1>
<p>These platforms are built almost the same way while in development
so I'll combine the descriptions about their build process here.
First we will build wxWidgets and install it to an out of the way
place, then do the same for wxPython.</p>
<ol class="arabic">
<li><p class="first">Create a build directory in the main wxWidgets dir, and configure
wxWidgets. If you want to have multiple builds with different
configure options, just use different subdirectories. I normally
put the configure command in a script named &quot;.configure&quot; in each
build dir so I can easily blow away everything in the build dir and
rerun the script without having to remember the options I used
before:</p>
<pre class="literal-block">
cd $WXDIR
mkdir bld
cd bld
../configure --prefix=/opt/wx/2.5 \
--with-gtk \
--with-opengl \
--disable-monolithic \
--enable-debug \
--enable-geometry \
--enable-sound --with-sdl \
--enable-display \
</pre>
<p>On OS X of course you'll want to use --with-mac instead of
--with-gtk. For GTK2 and unicode add:</p>
<pre class="literal-block">
--enable-gtk2 \
--enable-unicode \
</pre>
<p>Notice that I used a prefix of /opt/wx/2.5. You can use whatever
path you want, such as a path in your HOME dir or even one of the
standard prefix paths such as /usr or /usr/local if you like, but
using /opt this way lets me easily have multiple versions and ports
of wxWidgets &quot;installed&quot; and makes it easy to switch between them,
without impacting any versions of wxWidgets that may have been
installed via an RPM or whatever. For the rest of the steps below
be sure to also substitute &quot;/opt/wx/2.5&quot; with whatever prefix you
choose for your build.</p>
<p>If you want to use the image and zlib libraries included with
wxWidgets instead of those already installed on your system, (for
example, to reduce dependencies on 3rd party libraries) then you
can add these flags to the configure command:</p>
<pre class="literal-block">
--with-libjpeg=builtin \
--with-libpng=builtin \
--with-libtiff=builtin \
--with-zlib=builtin \
</pre>
</li>
<li><p class="first">To build and install wxWidgets you could just use the &quot;make&quot;
command but there are other libraries besides the main wxWidgets
libs that also need to be built so again I make a script to do it
all for me so I don't forget anything. This time it is called
&quot;.make&quot; (I use the leading &quot;. so when I do <tt class="literal"><span class="pre">rm</span> <span class="pre">-r</span> <span class="pre">*</span></tt> in my build
dir I don't lose my scripts too.) This is what it looks like:</p>
<pre class="literal-block">
make $* \
&amp;&amp; make -C contrib/src/gizmos $* \
&amp;&amp; make -C contrib/src/ogl CXXFLAGS=&quot;-DwxUSE_DEPRECATED=0&quot; $* \
&amp;&amp; make -C contrib/src/stc $* \
&amp;&amp; make -C contrib/src/xrc $*
</pre>
<p>So you just use .make as if it where make, but don't forget to set
the execute bit on .make first!:</p>
<pre class="literal-block">
.make
.make install
</pre>
<p>When it's done you should have an installed set of files under
/opt/wx/2.5 containing just wxWidgets. Now to use this version of
wxWidgets you just need to add /opt/wx/2.5/bin to the PATH and set
LD_LIBRARY_PATH (or DYLD_LIBRARY_PATH on OS X) to /opt/wx/2.5/lib.</p>
</li>
<li><p class="first">I also have a script to help me build wxPython and it is checked in
to the CVS as wxWidgets/wxPython/b, but you probably don't want to
use it as it's very cryptic and expects that you want to run SWIG,
so if you don't have the latest patched up version of SWIG then
you'll probably get stuck. So I'll just give the raw commands
instead.</p>
<p>We're not going to install the development version of wxPython with
these commands, so it won't impact your already installed version
of the latest release. You'll be able test with this version when
you want to, and use the installed release version the rest of the
time. If do want to install the development verison please read
INSTALL.txt.</p>
<p>If you have more than one version of Python on your system then be
sure to use the version of Python that you want to use when running
wxPython programs to run the setup.py commands below. I'll be
using python2.3.</p>
<p>Make sure that the first wx-config found on the PATH is the one you
installed above, and then change to the $WXDIR/wxPython dir and
run the this command:</p>
<pre class="literal-block">
cd $WXDIR/wxPython
python2.3 setup.py build_ext --inplace --debug
</pre>
<p>If your new wx-config script is not on the PATH, or there is some
other version of it found first, then you can add this to the
command line to ensure your new one is used instead:</p>
<pre class="literal-block">
WX_CONFIG=/opt/wx/2.5/bin/wx-config
</pre>
<p>If you are building with GTK2 then add the following flags to the
command line:</p>
<pre class="literal-block">
WXPORT=gtk2 UNICODE=1
</pre>
<p>If you are wanting to have the source files regenerated with swig,
then you need to turn on the USE_SWIG flag and optionally tell it
where to find the new swig executable, so add these flags:</p>
<pre class="literal-block">
USE_SWIG=1 SWIG=/opt/swig/bin/swig
</pre>
<p>If you get errors about wxGLCanvas or being unable to find libGLU
or something like that then you can add BUILD_GLCANVAS=0 to the
setup.py command line to disable the building of the glcanvas
module.</p>
<p>When the setup.py command is done you should have fully populated
wxPython and wx packages locally in $WXDIR/wxPython/wxPython and
$WXDIR/wxPython/wx, with all the extension modules (<tt class="literal"><span class="pre">*.so</span></tt> files)
located in the wx package.</p>
</li>
<li><p class="first">To run code with the development verison of wxPython, just set the
PYTHONPATH to the wxPython dir located in the source tree. For
example:</p>
<pre class="literal-block">
export LD_LIBRARY_PATH=/opt/wx/2.5/lib
export PYTHONPATH=$WXDIR/wxPython
cd $WXDIR/wxPython/demo
python2.3 demo.py
</pre>
<p>OS X NOTE: You need to use &quot;pythonw&quot; on the command line to run
wxPython applications. This version of the Python executable is
part of the Python Framework and is allowed to interact with the
display. You can also double click on a .py or a .pyw file from
the finder (assuming that the PythonLauncher app is associated with
these file extensions) and it will launch the Framework version of
Python for you. For information about creating Applicaiton Bundles
of your wxPython apps please see the wiki and the mail lists.</p>
<p>SOLARIS NOTE: If you get unresolved symbol errors when importing
wxPython and you are running on Solaris and building with gcc, then
you may be able to work around the problem by uncommenting a bit of
code in setup.py and building again. Look for 'SunOS' in setup.py
and uncomment the block containing it. The problem is that Sun's ld
does not automatically add libgcc to the link step.</p>
</li>
</ol>
</div>
<div class="section" id="building-on-windows">
<h1><a name="building-on-windows">Building on Windows</a></h1>
<p>The Windows builds currently require the use of Microsoft Visual C++.
Theoretically, other compilers (such as mingw32 or the Borland
compilers) can also be used but I've never done the work to make that
happen. If you want to try that then first you'll want to find out if
there are any tricks that have to be done to make Python extension
modules using that compiler, and then make a few changes to setup.py
to accomodate that. (And send the patches to me.) If you plan on
using VisualStudio.Net (a.k.a. MSVC 7.1) keep in mind that you'll also
have to build Python and any other extension modules that you use with
that compiler because a different version of the C runtime library is
used. The Python executable that comes from PythonLabs and the
wxPython extensions that I distribute are built with MSVC 6 with all
the Service Packs applied. This policy will change with Python 2.4
and MSVC 7.1 will be used starting with that version.</p>
<p>If you want to build a debugable version of wxWidgets and wxPython you
will need to have also built a debug version of Python and any other
extension modules you need to use. You can tell if you have them
already if there is a _d in the file names, for example python_d.exe
or python23_d.dll. If you don't need to trace through the C/C++ parts
of the code with the debugger then building the normal (or hybrid)
version is fine, and you can use the regular python executables with
it.</p>
<p>Just like the unix versions I also use some scripts to help me build
wxWidgets, but I use some non-standard stuff to do it. So if you want
to use my scripts you'll need to get a copy or 4DOS or 4NT from
<a class="reference" href="http://www.jpsoft.com/">http://www.jpsoft.com/</a> and also a copy of unix-like cat and sed
programs. You can also do by hand what my scripts are doing, but
there are alot of steps involved and I won't be going into details
here. There is a copy of my build scripts in %WXDIR%wxPythondistribmsw
that you can use for reference (if you don't use them directly) for
adapting these instructions to your specific needs. The directions
below assume that you are using my scripts.</p>
<ol class="arabic">
<li><p class="first">Set an environment variable to the root of the wxWidgets source
tree. This is used by the makefiles:</p>
<pre class="literal-block">
set WXWIN=%WXDIR%
</pre>
</li>
<li><p class="first">Copy setup0.h to setup.h</p>
<blockquote>
<p>cd %WXDIR%includewxmsw
copy setup0.h setup.h</p>
</blockquote>
</li>
<li><p class="first">Edit %WXDIR%includewxmswsetup.h and change a few settings.
Some of them are changed by my build scripts depending on the type
of build (debug/hybrid, unicode/ansi). I change a few of the other
defaults to have these values:</p>
<pre class="literal-block">
wxDIALOG_UNIT_COMPATIBILITY 0
wxUSE_DEBUG_CONTEXT 1
wxUSE_MEMORY_TRACING 1
wxUSE_DIALUP_MANAGER 0
wxUSE_GLCANVAS 1
wxUSE_POSTSCRIPT 1
wxUSE_AFM_FOR_POSTSCRIPT 0
wxUSE_DISPLAY 1
</pre>
</li>
<li><p class="first">Make sure that %WXDIR%libvc_dll directory is on the PATH. The
wxWidgets DLLs will end up there as part of the build and so you'll
need it on the PATH for them to be found at runtime.</p>
</li>
<li><p class="first">Change to the %WXDIR%buildmsw directory and copy my build scripts
there from their default location in %WXDIR%wxPythondistribmsw
if they are not present already.</p>
</li>
<li><p class="first">Use the .make.btm command to build wxWidgets. It needs one
command-line parameter which controls what kind of build(s) to do.
Use one of the following:</p>
<pre class="literal-block">
debug Build debug version
hybrid Build hybrid version
both Both debug and hybrid
debug-uni Build a debug unicode library
hybrid-uni Hybrid unicode (see the pattern yet? ;-)
both-uni and finally both unicode libraries
</pre>
<p>For example:</p>
<pre class="literal-block">
.make hybrid
You can also pass additional command line parameters as needed and
they will all be passed on to the nmake commands, for example to
clean up the build::
.make hybrid clean
</pre>
</li>
<li><p class="first">When that is done it will have built the main wxWidgets DLLs and
also some of the contribs DLLs. There should be a ton of DLLs in
%WXDIR%bin and lots of lib files and other stuff in
%WXDIR%libvc_dll.</p>
</li>
<li><p class="first">Building wxPython on Windows is very similar to doing it for the
unix systems. We're not going to install the development version
of wxPython with these commands, so it won't impact your already
installed version of the latest release. You'll be able to test
with this version when you want to, and use the installed release
version the rest of the time. If you ever do want to install the
development verison please refer to INSTALL.txt.</p>
<p>Change to the %WXDIR%wxPython dir and run the this command,
makeing sure that you use the version of python that you want to
build for (if you have more than one on your system):</p>
<pre class="literal-block">
cd %WXDIR%\wxPython
python setup.py build_ext --inplace
</pre>
<p>If you are wanting to have the source files regenerated with swig,
then you need to turn on the USE_SWIG flag and optionally tell it
where to find the new swig executable, so add these flags:</p>
<pre class="literal-block">
USE_SWIG=1 SWIG=e:\projects\SWIG-cvs\swig.exe
</pre>
<p>If you built a Unicode version of wxWidgets and want to also build
the Unicode version of wxPython then add this flag:</p>
<pre class="literal-block">
UNICODE=1
</pre>
<p>If you have a debug version of Python and wxWidgets and want to
build a debug version of wxPython too, add the --debug flag to the
command line. You should then end up with a set of <tt class="literal"><span class="pre">*_d.pyd</span></tt>
files in the wx package and you'll have to run <tt class="literal"><span class="pre">python_d.exe</span></tt> to
use them. The debug and hybrid(release) versions can coexist.</p>
<p>When the setup.py command is done you should have fully populated
wxPython and wx packages locally in %WXDIR%/wxPython/wxPython and
%WXDIR%/wxPython/wx, with all the extension modules (<tt class="literal"><span class="pre">*.pyd</span></tt>
files) located in the wx package.</p>
</li>
<li><p class="first">To run code with the development verison of wxPython, just set the
PYTHONPATH to the wxPython dir in the CVS tree. For example:</p>
<pre class="literal-block">
set PYTHONPATH=%WXDIR%\wxPython
cd %WXDIR\wxPython\demo
python demo.py
</pre>
</li>
</ol>
</div>
</div>
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