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7<title>Building wxPython 2.5 for Development and Testing</title>
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11<div class="document" id="building-wxpython-2-5-for-development-and-testing">
12<h1 class="title">Building wxPython 2.5 for Development and Testing</h1>
13<p>This file describes how I build wxWidgets and wxPython while doing
14development and testing, and is meant to help other people that want
15to do the same thing. I'll assume that you are using either a CVS
16snapshot from <a class="reference" href="http://wxWidgets.org/snapshots/">http://wxWidgets.org/snapshots/</a>, a checkout from CVS, or
17one of the released wxPython-src-2.5.* tarballs. I'll also assume that
18you know your way around your system, the compiler, etc. and most
19importantly, that you know what you are doing! ;-)</p>
20<p>If you want to also install the version of wxPython you build to be in
21your site-packages dir and be your default version of wxPython, then a
22few additional steps are needed, and you may want to use slightly
23different options. See the <a class="reference" href="INSTALL.html">INSTALL</a> document for more details. If
24you only use the instructions in this <a class="reference" href="BUILD.html">BUILD</a> document file then you
25will end up with a separate installation of wxPython and you can
26switch back and forth between this and the release version that you
27may already have installed.</p>
28<p>If you want to make changes to any of the <tt class="literal"><span class="pre">*.i</span></tt> files, (SWIG
29interface definition files,) or to regenerate the extension sources or
30renamer modules, then you will need an up to date version of SWIG,
31plus some patches. Get the sources for version 1.3.22, and then apply
32the patches in wxPython/SWIG and then build SWIG like normal. See the
33README.txt in the wxPython/SWIG dir for details about each patch and
34also info about those that may already have been applied to the SWIG
35sources. If you install this build of SWIG to a location that is not
36on the PATH (so it doesn't interfere with an existing SWIG install for
37example) then you can set a setup.py command-line variable named SWIG
38to be the full path name of the executable and the wxPython build will
39use it. See below for an example.</p>
40<p>In the text below I'll use WXDIR with environment variable syntax
41(either $WXDIR or %WXDIR%) to refer to the top level directory where
42your wxWidgerts and wxPython sources are located. It will equate to
43whereever you checked out the wxWidgets module from CVS, or untarred
44the wxPython-src tarball to. You can either substitute the $WXDIR text
45below with your actual dir, or set the value in the environment and
46use it just like you see it below.</p>
47<p>If you run into what appears to be compatibility issues between
48wxWidgets and wxPython while building wxPython, be sure you are using
49the wxWidgets sources included with the wxPython-src tarball or the
50CVS snapshot, and not a previously installed version or a version
51installed from one of the standard wxWidgets installers. With the
52&quot;unstable&quot; releases (have a odd-numbered minor release value, where
53the APIs are allowed to change) there are often significant
54differences between the W.X.Y release of wxWidgets and the W.X.Y.Z
55release of wxPython.</p>
56<div class="section" id="building-on-unix-like-systems-e-g-linux-and-os-x">
57<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>
58<p>These platforms are built almost the same way while in development
59so I'll combine the descriptions about their build process here.
60First we will build wxWidgets and install it to an out of the way
61place, then do the same for wxPython.</p>
62<ol class="arabic">
63<li><p class="first">Create a build directory in the main wxWidgets dir, and configure
64wxWidgets. If you want to have multiple builds with different
65configure options, just use different subdirectories. I normally
66put the configure command in a script named &quot;.configure&quot; in each
67build dir so I can easily blow away everything in the build dir and
68rerun the script without having to remember the options I used
69before:</p>
70<pre class="literal-block">
71cd $WXDIR
72mkdir bld
73cd bld
74../configure --prefix=/opt/wx/2.5 \
75 --with-gtk \
76 --with-opengl \
77 --enable-debug \
78 --enable-geometry \
79 --enable-sound --with-sdl \
80 --enable-display \
81</pre>
82<p>On OS X of course you'll want to use --with-mac instead of
83--with-gtk.</p>
84<p><strong>NOTE</strong>: Due to a recent change there is currently a dependency
85problem in the multilib builds of wxWidgets on OSX, so I have
86switched to using a monolithic build. That means that all of the
87core wxWidgets code is placed in in one shared library instead of
88several. wxPython can be used with either mode, so use whatever
89suits you on Linux and etc. but use monolithic on OSX. To switch
90to the monolithic build of wxWidgets just add this configure flag:</p>
91<pre class="literal-block">
92--enable-monolithic \
93</pre>
94<p>By default GTK2 will be selected if its development pacakge is
95installed on your build system. To force the use of GTK 1.2.x
96instead add this flag:</p>
97<pre class="literal-block">
98--disable-gtk2 \
99</pre>
100<p>To make the wxWidgets build be unicode enabled (strongly
101recommended if you are building with GTK2) then add the following.
102When wxPython is unicode enabled then all strings that are passed
103to wx functions and methods will first be converted to unicode
104objects, and any 'strings' returned from wx functions and methods
105will actually be unicode objects.:</p>
106<pre class="literal-block">
107--enable-unicode \
108</pre>
109<p>Notice that I used a prefix of /opt/wx/2.5. You can use whatever
110path you want, such as a path in your HOME dir or even one of the
111standard prefix paths such as /usr or /usr/local if you like, but
112using /opt this way lets me easily have multiple versions and ports
113of wxWidgets &quot;installed&quot; and makes it easy to switch between them,
114without impacting any versions of wxWidgets that may have been
115installed via an RPM or whatever. For the rest of the steps below
116be sure to also substitute &quot;/opt/wx/2.5&quot; with whatever prefix you
117choose for your build.</p>
118<p>If you want to use the image and zlib libraries included with
119wxWidgets instead of those already installed on your system, (for
120example, to reduce dependencies on 3rd party libraries) then you
121can add these flags to the configure command:</p>
122<pre class="literal-block">
123--with-libjpeg=builtin \
124--with-libpng=builtin \
125--with-libtiff=builtin \
126--with-zlib=builtin \
127</pre>
128</li>
129<li><p class="first">To build and install wxWidgets you could just use the &quot;make&quot;
130command but there are other libraries besides the main wxWidgets
131libs that also need to be built so again I make a script to do it
132all for me so I don't forget anything. This time it is called
133&quot;.make&quot; (I use the leading &quot;.&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
134dir I don't lose my scripts too.) This is what it looks like:</p>
135<pre class="literal-block">
136make $* \
137 &amp;&amp; make -C contrib/src/gizmos $* \
138 &amp;&amp; make -C contrib/src/ogl CXXFLAGS=&quot;-DwxUSE_DEPRECATED=0&quot; $* \
139 &amp;&amp; make -C contrib/src/stc $*
140</pre>
141<p>So you just use .make as if it where make, but don't forget to set
142the execute bit on .make first!:</p>
143<pre class="literal-block">
144.make
145.make install
146</pre>
147<p>When it's done you should have an installed set of files under
148/opt/wx/2.5 containing just wxWidgets. Now to use this version of
149wxWidgets you just need to add /opt/wx/2.5/bin to the PATH and set
150LD_LIBRARY_PATH (or DYLD_LIBRARY_PATH on OS X) to /opt/wx/2.5/lib.</p>
151</li>
152<li><p class="first">I also have a script to help me build wxPython and it is checked in
153to the CVS as wxWidgets/wxPython/b, but you probably don't want to
154use it as it's very cryptic and expects that you want to run SWIG,
155so if you don't have the latest patched up version of SWIG then
156you'll probably get stuck. So I'll just give the raw commands
157instead.</p>
158<p>We're not going to install the development version of wxPython with
159these commands, so it won't impact your already installed version
160of the latest release. You'll be able test with this version when
161you want to, and use the installed release version the rest of the
162time. If you want to install the development version please read
163INSTALL.txt.</p>
164<p>If you have more than one version of Python on your system then be
165sure to use the version of Python that you want to use when running
166wxPython programs to run the setup.py commands below. I'll be
167using python2.3.</p>
168<p>Make sure that the first wx-config found on the PATH is the one you
169installed above, and then change to the $WXDIR/wxPython dir and
170run the this command:</p>
171<pre class="literal-block">
172cd $WXDIR/wxPython
173python2.3 setup.py build_ext --inplace --debug
174</pre>
175<p>If your new wx-config script is not on the PATH, or there is some
176other version of it found first, then you can add this to the
177command line to ensure your new one is used instead:</p>
178<pre class="literal-block">
179WX_CONFIG=/opt/wx/2.5/bin/wx-config
180</pre>
181<p>By default setup.py will assume that you built wxWidgets to use
182GTK2. If you built wxWidgets to use GTK 1.2.x then you should add
183this flag to the command-line:</p>
184<pre class="literal-block">
185WXPORT=gtk
186</pre>
187<p>If you would like to do a Unicode enabled build (all strings sent
188to or retruned from wx functions are Unicode objects) and your
189wxWidgets was built with unicode enabled then add this flag:</p>
190<pre class="literal-block">
191UNICODE=1
192</pre>
193<p>If you are wanting to have the source files regenerated with swig,
194then you need to turn on the USE_SWIG flag and optionally tell it
195where to find the new swig executable, so add these flags:</p>
196<pre class="literal-block">
197USE_SWIG=1 SWIG=/opt/swig/bin/swig
198</pre>
199<p>If you get errors about being unable to find libGLU, wxGLCanvas
200being undeclared, or something similar then you can add
201BUILD_GLCANVAS=0 to the setup.py command line to disable the
202building of the glcanvas module.</p>
203<p>When the setup.py command is done you should have fully populated
204wxPython and wx packages locally in $WXDIR/wxPython/wxPython and
205$WXDIR/wxPython/wx, with all the extension modules (<tt class="literal"><span class="pre">*.so</span></tt> files)
206located in the wx package.</p>
207</li>
208<li><p class="first">To run code with the development version of wxPython, just set the
209PYTHONPATH to the wxPython dir located in the source tree. For
210example:</p>
211<pre class="literal-block">
212export LD_LIBRARY_PATH=/opt/wx/2.5/lib
213export PYTHONPATH=$WXDIR/wxPython
214cd $WXDIR/wxPython/demo
215python2.3 demo.py
216</pre>
217<p>OS X NOTE: You need to use &quot;pythonw&quot; on the command line to run
218wxPython applications. This version of the Python executable is
219part of the Python Framework and is allowed to interact with the
220display. You can also double click on a .py or a .pyw file from
221the finder (assuming that the PythonLauncher app is associated with
222these file extensions) and it will launch the Framework version of
223Python for you. For information about creating Applicaiton Bundles
224of your wxPython apps please see the wiki and the mail lists.</p>
225<p>SOLARIS NOTE: If you get unresolved symbol errors when importing
226wxPython and you are running on Solaris and building with gcc, then
227you may be able to work around the problem by uncommenting a bit of
228code in setup.py and building again. Look for 'SunOS' in setup.py
229and uncomment the block containing it. The problem is that Sun's ld
230does not automatically add libgcc to the link step.</p>
231</li>
232</ol>
233</div>
234<div class="section" id="building-on-windows">
235<h1><a name="building-on-windows">Building on Windows</a></h1>
236<p>The Windows builds currently require the use of Microsoft Visual C++.
237Theoretically, other compilers (such as mingw32 or the Borland
238compilers) can also be used but I've never done the work to make that
239happen. If you want to try that then first you'll want to find out if
240there are any tricks that have to be done to make Python extension
241modules using that compiler, and then make a few changes to setup.py
242to accommodate that. (And send the patches to me.) If you plan on
243using VisualStudio.Net (a.k.a. MSVC 7.1) keep in mind that you'll also
244have to build Python and any other extension modules that you use with
245that compiler because a different version of the C runtime library is
246used. The Python executable that comes from PythonLabs and the
247wxPython extensions that I distribute are built with MSVC 6 with all
248the Service Packs applied. This policy will change with Python 2.4
249and MSVC 7.1 will be used starting with that version.</p>
250<p>If you want to build a debuggable version of wxWidgets and wxPython you
251will need to have also built a debug version of Python and any other
252extension modules you need to use. You can tell if you have them
253already if there is a _d in the file names, for example python_d.exe
254or python23_d.dll. If you don't need to trace through the C/C++ parts
255of the code with the debugger then building the normal (or hybrid)
256version is fine, and you can use the regular python executables with
257it.</p>
258<p>Starting with 2.5.3.0 wxPython can be built for either the monlithic
259or the multi-lib wxWidgets builds. (Monolithic means that all the
260core wxWidgets code is in one DLL, and multi-lib means that the core
261code is divided into multiple DLLs.) To select which one to use
262specify the MONOLITHIC flag for both the wxWidgets build and the
263wxPython build as shown below, setting it to either 0 or 1.</p>
264<p>Just like the unix versions I also use some scripts to help me build
265wxWidgets, but I use some non-standard stuff to do it. So if you have
266bash (cygwin or probably MSYS too) or 4NT plus unix-like cat and sed
267programs then there is a copy of my wxWidgets build scripts in
268%WXDIR%\wxPython\distrib\msw. Just copy them to
269%WXDIR%\build\msw and you can use them to do your build, otherwise
270you can do everything by hand as described below. But if you do work
271by hand and something doesn't seem to be working correctly please
272refer to the build scripts to see what may need to be done
273differently.</p>
274<p>The *.btm files are for 4NT and the others are for bash. They are:</p>
275<pre class="literal-block">
276.make/.make.btm Builds the main lib and the needed contribs
277.mymake/.mymake.btm Builds just one lib, use by .make
278.makesetup.mk A makefile that will copy and edit setup.h
279 as needed for the different types of builds
280</pre>
281<p>Okay. Here's what you've been waiting for, the instructions! Adapt
282accordingly if you are using the bash shell.</p>
283<ol class="arabic">
284<li><p class="first">Set an environment variable to the root of the wxWidgets source
285tree. This is used by the makefiles:</p>
286<pre class="literal-block">
287set WXWIN=%WXDIR%
288</pre>
289</li>
290<li><p class="first">Copy setup0.h to setup.h:</p>
291<pre class="literal-block">
292cd %WXDIR%\include\wx\msw
293copy setup0.h setup.h
294</pre>
295</li>
296<li><p class="first">Edit %WXDIR%\include\wx\msw\setup.h and change a few settings:</p>
297<pre class="literal-block">
298wxDIALOG_UNIT_COMPATIBILITY 0
299wxUSE_DEBUG_CONTEXT 1
300wxUSE_MEMORY_TRACING 1
301wxUSE_DIALUP_MANAGER 0
302wxUSE_GLCANVAS 1
303wxUSE_POSTSCRIPT 1
304wxUSE_AFM_FOR_POSTSCRIPT 0
305wxUSE_DISPLAY 1
306</pre>
307<p>If you are using my build scripts then a few more settings will be
308changed and then a copy of setup.h is placed in a subdir of
309%WXWIN%\libvc_dll. If you are doing it by hand and making a
310UNICODE build, then also change these:</p>
311<pre class="literal-block">
312wxUSE_UNICODE 1
313wxUSE_UNICODE_MSLU 1
314</pre>
315<p>If you are doing a &quot;hybrid&quot; build (which is the same as the
316binaries that I release) then also change these:</p>
317<pre class="literal-block">
318wxUSE_MEMORY_TRACING 0
319wxUSE_DEBUG_CONTEXT 0
320</pre>
321</li>
322<li><p class="first">Make sure that %WXDIR%\lib\vc_dll directory is on the PATH. The
323wxWidgets DLLs will end up there as part of the build and so you'll
324need it on the PATH for them to be found at runtime.</p>
325</li>
326<li><p class="first">Change to the %WXDIR%\build\msw directory</p>
327<blockquote>
328<p>cd %WXDIR%\build\msw</p>
329</blockquote>
330</li>
331<li><p class="first">If using my scripts then use the .make.btm command to build
332wxWidgets. It needs one command-line parameter which controls what
333kind of build(s) to do. Use one of the following:</p>
334<pre class="literal-block">
335debug Build debug version
336hybrid Build hybrid version
337both Both debug and hybrid
338debug-uni Build a debug unicode library
339hybrid-uni Hybrid unicode (see the pattern yet? ;-)
340both-uni and finally both unicode libraries
341</pre>
342<p>For example:</p>
343<pre class="literal-block">
344.make hybrid
345</pre>
346<p>You can also pass additional command line parameters as needed and
347they will all be passed on to the nmake commands, for example to
348clean up the build:</p>
349<pre class="literal-block">
350.make hybrid clean
351</pre>
352<p>If <em>not</em> using my scripts then you can do it by hand by directly
353executing nmake with a bunch of extra command line parameters.
354The base set are:</p>
355<pre class="literal-block">
356-f makefile.vc OFFICIAL_BUILD=1 SHARED=1 MONOLITHIC=1 USE_OPENGL=1
357</pre>
358<p>If doing a debug build then add:</p>
359<pre class="literal-block">
360BUILD=debug
361</pre>
362<p>otherwise add these:</p>
363<pre class="literal-block">
364DEBUG_FLAG=1 CXXFLAGS=/D__NO_VC_CRTDBG__ WXDEBUGFLAG=h BUILD=release
365</pre>
366<p>If doing a Unicode build then add these flags:</p>
367<pre class="literal-block">
368UNICODE=1 MSLU=1
369</pre>
370<p>Now, from the %WXDIR%\build\msw directory run nmake with your
371selection of command-line flags as described above. Repeat this
372same command from the following directories in order to build the
373contrib libraries:</p>
374<pre class="literal-block">
375 %WXDIR%\contrib\build\gizmos
376 %WXDIR%\contrib\build\stc
377 %WXDIR%\contrib\build\ogl
378
379Note, that the ogl lib build will need an additional flag::
380
381 CPPFLAGS=&quot;-DwxUSE_DEPRECATED=0&quot;
382</pre>
383</li>
384<li><p class="first">When that is all done it will have built the main wxWidgets DLLs
385and also some of the contribs DLLs. There should be a ton of DLLs
386and lots of lib files and other stuff in %WXDIR%\lib\vc_dll.</p>
387</li>
388<li><p class="first">Building wxPython on Windows is very similar to doing it for the
389unix systems. We're not going to install the development version
390of wxPython with these commands, so it won't impact your already
391installed version of the latest release. You'll be able to test
392with this version when you want to, and use the installed release
393version the rest of the time. If you ever do want to install the
394development version please refer to INSTALL.txt.</p>
395<p>Change to the %WXDIR%\wxPython dir and run the this command,
396making sure that you use the version of python that you want to
397build for (if you have more than one on your system) and to match
398the MONOLITHIC flag with how you built wxWidgets:</p>
399<pre class="literal-block">
400cd %WXDIR%\wxPython
401python setup.py build_ext --inplace MONOLITHIC=1
402</pre>
403<p>If you are wanting to have the source files regenerated with swig,
404then you need to turn on the USE_SWIG flag and optionally tell it
405where to find the new swig executable, so add these flags:</p>
406<pre class="literal-block">
407USE_SWIG=1 SWIG=e:\projects\SWIG-cvs\swig.exe
408</pre>
409<p>If you built a Unicode version of wxWidgets and want to also build
410the Unicode version of wxPython then add this flag:</p>
411<pre class="literal-block">
412UNICODE=1
413</pre>
414<p>If you have a debug version of Python and wxWidgets and want to
415build a debug version of wxPython too, add the --debug flag to the
416command line. You should then end up with a set of <tt class="literal"><span class="pre">*_d.pyd</span></tt>
417files in the wx package and you'll have to run <tt class="literal"><span class="pre">python_d.exe</span></tt> to
418use them. The debug and hybrid(release) versions can coexist.</p>
419<p>When the setup.py command is done you should have fully populated
420wxPython and wx packages locally in %WXDIR%/wxPython/wxPython and
421%WXDIR%/wxPython/wx, with all the extension modules (<tt class="literal"><span class="pre">*.pyd</span></tt>
422files) located in the wx package.</p>
423</li>
424<li><p class="first">To run code with the development version of wxPython, just set the
425PYTHONPATH to the wxPython dir in the CVS tree. For example:</p>
426<pre class="literal-block">
427set PYTHONPATH=%WXDIR%\wxPython
428cd %WXDIR\wxPython\demo
429python demo.py
430</pre>
431</li>
432</ol>
433</div>
434</div>
435</body>
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