wxPython/docs/BUILD.html

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  11 <div class="document" id="building-wxpython-2-8-for-development-and-testing">
  12 <h1 class="title">Building wxPython 2.8 for Development and Testing</h1>
  13 <p>This file describes how I build wxWidgets and wxPython while doing
  14 development and testing, and is meant to help other people that want
  15 to do the same thing.  I'll assume that you are using either a CVS
  16 snapshot from <a class="reference" href="http://wxWidgets.org/snapshots/">http://wxWidgets.org/snapshots/</a>, a checkout from CVS, or
  17 one of the released wxPython-src-2.8.* tarballs.  I'll also assume that
  18 you know your way around your system, the compiler, etc. and most
  19 importantly, 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
  21 your site-packages dir and be your default version of wxPython, then a
  22 few additional steps are needed, and you may want to use slightly
  23 different options.  See the <a class="reference" href="INSTALL.html">INSTALL</a> document for more details.  If
  24 you only use the instructions in this <a class="reference" href="BUILD.html">BUILD</a> document file then you
  25 will end up with a separate installation of wxPython and you can
  26 switch back and forth between this and the release version that you
  27 may already have installed.</p>
  28 <p>If you want to make changes to any of the <tt class="docutils literal"><span class="pre">*.i</span></tt> files, (SWIG
  29 interface definition files,) or to regenerate the extension sources or
  30 renamer modules, then you will need an up to date version of SWIG,
  31 plus some patches.  Get the sources for version 1.3.29, and then apply
  32 the patches in wxPython/SWIG and then build SWIG like normal.  See the
  33 README.txt in the wxPython/SWIG dir for details about each patch and
  34 also info about those that may already have been applied to the SWIG
  35 sources.  If you install this build of SWIG to a location that is not
  36 on the PATH (so it doesn't interfere with an existing SWIG install for
  37 example) then you can use a setup.py command-line option named SWIG
  38 set to the full path name of the executable and the wxPython build will
  39 use 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
  42 your wxWidgets and wxPython sources are located.  It will equate to
  43 whereever you checked out the wxWidgets module from CVS, or untarred
  44 the wxPython-src tarball to.  You can either substitute the $WXDIR text
  45 below with your actual dir, or set the value in the environment and
  46 use it just like you see it below.</p>
  47 <p>If you run into what appears to be compatibility issues between
  48 wxWidgets and wxPython while building wxPython, be sure you are using
  49 the wxWidgets sources included with the wxPython-src tarball or the
  50 CVS snapshot, and not a previously installed version or a version
  51 installed from one of the standard wxWidgets installers.  With the
  52 &quot;unstable&quot; releases (have a odd-numbered minor release value, where
  53 the APIs are allowed to change) there are often significant
  54 differences between the W.X.Y release of wxWidgets and the W.X.Y.Z
  55 release of wxPython.</p>
  56 <div class="section">
  57 <h1><a id="building-on-unix-like-systems-e-g-linux-and-os-x" 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
  59 so I'll combine the descriptions about their build process here.
  60 First we will build wxWidgets and install it to an out of the way
  61 place, 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
  64 wxWidgets.  If you want to have multiple builds with different
  65 configure options, just use different subdirectories.  I normally
  66 put the configure command in a script named &quot;.configure&quot; in each
  67 build dir so I can easily blow away everything in the build dir and
  68 rerun the script without having to remember the options I used
  69 before:</p>
  70 <pre class="literal-block">
  71 cd $WXDIR
  72 mkdir bld
  73 cd bld
  74 ../configure --prefix=/opt/wx/2.8 \
  75              --with-gtk \
  76              --with-gnomeprint \
  77              --with-opengl \
  78              --enable-debug \
  79              --enable-geometry \
  80              --enable-graphics_ctx \
  81              --enable-sound --with-sdl \
  82              --enable-mediactrl \
  83              --enable-display \
  84              --disable-debugreport \
  85 </pre>
  86 <p>On OS X of course you'll want to use --with-mac instead of
  87 --with-gtk and --with-gnomeprint.</p>
  88 <p>Notice that above I used a prefix option of &quot;/opt/wx/2.8&quot;.  You can
  89 use whatever path you want, such as a path in your HOME dir or even
  90 one of the standard prefix paths such as /usr or /usr/local if you
  91 like, but using /opt this way lets me easily have multiple versions
  92 and ports of wxWidgets &quot;installed&quot; and makes it easy to switch
  93 between them, without impacting any versions of wxWidgets that may
  94 have been installed via an RPM or whatever.  For the rest of the
  95 steps below be sure to also substitute &quot;/opt/wx/2.8&quot; with whatever
  96 prefix you choose for your build.</p>
  97 <p><strong>NOTE</strong>: Due to a recent change there is currently a dependency
  98 problem in the multilib builds of wxWidgets on OSX, so I have
  99 switched to using a monolithic build.  That means that all of the
 100 core wxWidgets code is placed in in one shared library instead of
 101 several.  wxPython can be used with either mode, so use whatever
 102 suits you on Linux and etc. but use monolithic on OSX.  To switch
 103 to the monolithic build of wxWidgets just add this configure flag:</p>
 104 <pre class="literal-block">
 105 --enable-monolithic \
 106 </pre>
 107 <p>By default GTK 2.x will be used for the build.  If you would rather
 108 use GTK 1.2.x for some reason then you can force configure to use
 109 it by changing the --with-gtk flag to specify it like this:</p>
 110 <pre class="literal-block">
 111 --with-gtk=1 \
 112 </pre>
 113 <p>To make the wxWidgets build be unicode enabled (strongly
 114 recommended unless you are building with GTK1) then add the
 115 following flag.  When wxPython is unicode enabled then all strings
 116 that are passed to wx functions and methods will first be converted
 117 to unicode objects, and any 'strings' returned from wx functions
 118 and methods will actually be unicode objects.:</p>
 119 <pre class="literal-block">
 120 --enable-unicode \
 121 </pre>
 122 <p>If you want to use the image and zlib libraries included with
 123 wxWidgets instead of those already installed on your system, (for
 124 example, to reduce dependencies on 3rd party libraries) then you
 125 can add these flags to the configure command:</p>
 126 <pre class="literal-block">
 127 --with-libjpeg=builtin \
 128 --with-libpng=builtin \
 129 --with-libtiff=builtin \
 130 --with-zlib=builtin \
 131 </pre>
 132 </li>
 133 <li><p class="first">To build and install wxWidgets you could just use the &quot;make&quot;
 134 command but there are a couple other libraries besides the main
 135 wxWidgets libs that also need to be built so again I make a script
 136 to do it all for me so I don't forget anything.  This time it is
 137 called &quot;.make&quot; (I use the leading &quot;.&quot;  so when I do <tt class="docutils literal"><span class="pre">rm</span> <span class="pre">-r</span> <span class="pre">*</span></tt> in
 138 my build dir I don't lose my scripts too.)  This is what it looks
 139 like:</p>
 140 <pre class="literal-block">
 141 make $* \
 142     &amp;&amp; make -C contrib/src/gizmos $* \
 143     &amp;&amp; make -C contrib/src/stc $*
 144 </pre>
 145 <p>So you just use .make as if it where make, but don't forget to set
 146 the execute bit on .make first!:</p>
 147 <pre class="literal-block">
 148 .make
 149 .make install
 150 </pre>
 151 <p>When it's done you should have an installed set of files under
 152 /opt/wx/2.8 containing just wxWidgets.  Now to use this version of
 153 wxWidgets you just need to add /opt/wx/2.8/bin to the PATH and set
 154 LD_LIBRARY_PATH (or DYLD_LIBRARY_PATH on OS X) to /opt/wx/2.8/lib.</p>
 155 </li>
 156 <li><p class="first">I also have a script to help me build wxPython and it is checked in
 157 to the CVS as wxWidgets/wxPython/b, but you probably don't want to
 158 use it as it's very cryptic and expects that you want to run SWIG,
 159 so if you don't have the latest patched up version of SWIG then
 160 you'll probably get stuck.  So in this document I'll just give the
 161 raw commands instead.</p>
 162 <p>We're not going to install the development version of wxPython with
 163 these commands, so it won't impact your already installed version
 164 of the latest release.  You'll be able test with this version when
 165 you want to, and use the installed release version the rest of the
 166 time.  If you want to install the development version please read
 167 INSTALL.txt.</p>
 168 <p>If you have more than one version of Python on your system then be
 169 sure to use the version of Python that you want to use when running
 170 wxPython programs to run the setup.py commands below.  I'll be
 171 using python2.5.</p>
 172 <p>Make sure that the first wx-config found on the PATH is the one
 173 belonging to the wxWidgets that you installed above, and then
 174 change to the $WXDIR/wxPython dir and run the this command:</p>
 175 <pre class="literal-block">
 176 cd $WXDIR/wxPython
 177 python2.5 setup.py build_ext --inplace --debug
 178 </pre>
 179 <p>If your new wx-config script is not on the PATH, or there is some
 180 other version of it found first, then you can add this to the
 181 command line to ensure your new one is used instead:</p>
 182 <pre class="literal-block">
 183 WX_CONFIG=/opt/wx/2.8/bin/wx-config
 184 </pre>
 185 <p>By default setup.py will assume that you built wxWidgets to use
 186 GTK2.  If you built wxWidgets to use GTK 1.2.x then you should add
 187 this flag to the command-line:</p>
 188 <pre class="literal-block">
 189 WXPORT=gtk
 190 </pre>
 191 <p>Setup.py will assume by default that you are using a unicode build
 192 of wxWidgets.  If not then you can use this flag:</p>
 193 <pre class="literal-block">
 194 UNICODE=0
 195 </pre>
 196 <p>If you are wanting to have the source files regenerated with swig,
 197 (only neccessary if you make modifications to the <tt class="docutils literal"><span class="pre">*.i</span></tt> files,)
 198 then you need to turn on the USE_SWIG flag and optionally tell it
 199 where to find the new swig executable, so add these flags:</p>
 200 <pre class="literal-block">
 201 USE_SWIG=1 SWIG=/opt/swig/bin/swig
 202 </pre>
 203 <p>If you get errors about being unable to find libGLU, wxGLCanvas
 204 being undeclared, or something similar then you can add
 205 BUILD_GLCANVAS=0 to the setup.py command line to disable the
 206 building of the glcanvas module.</p>
 207 <p>When the setup.py command is done you should have a fully populated
 208 (but uninstalled) wx package located in your $WXDIR/wxPython/wx
 209 directory.</p>
 210 </li>
 211 <li><p class="first">To run code with the development version of wxPython, just set the
 212 PYTHONPATH to the wxPython dir located in the source tree.  For
 213 example:</p>
 214 <pre class="literal-block">
 215 export LD_LIBRARY_PATH=/opt/wx/2.8/lib
 216 export PYTHONPATH=$WXDIR/wxPython
 217 cd $WXDIR/wxPython/demo
 218 python2.5 demo.py
 219 </pre>
 220 <p>OS X NOTE: Depending on your version of OS X and Python you may
 221 need to use &quot;pythonw&quot; on the command line to run wxPython
 222 applications.  This version of the Python executable is part of the
 223 Python Framework and is allowed to interact with the display.  You
 224 can also double click on a .py or a .pyw file from the finder
 225 (assuming that the PythonLauncher app is associated with these file
 226 extensions) and it will launch the Framework version of Python for
 227 you.  For information about creating Applicaiton Bundles of your
 228 wxPython apps please see the wiki and the mail lists.</p>
 229 <p>SOLARIS NOTE: If you get unresolved symbol errors when importing
 230 wxPython and you are running on Solaris and building with gcc, then
 231 you may be able to work around the problem by uncommenting a bit of
 232 code in config.py and building again.  Look for 'SunOS' in config.py
 233 and uncomment the block containing it.  The problem is that Sun's ld
 234 does not automatically add libgcc to the link step.</p>
 235 </li>
 236 </ol>
 237 </div>
 238 <div class="section">
 239 <h1><a id="building-on-windows" name="building-on-windows">Building on Windows</a></h1>
 240 <p>The Windows builds currently require the use of Microsoft Visual C++.
 241 Theoretically, other compilers (such as mingw32 or the Borland
 242 compilers) can also be used but I've never done the work to make that
 243 happen.  If you want to try that then first you'll want to find out if
 244 there are any tricks that have to be done to make Python extension
 245 modules using that compiler, and then make a few changes to setup.py
 246 to accommodate that.  (And send the patches to me.)</p>
 247 <p>The standard Python 2.3 and earlier are built with MS Visual C 6.0 and
 248 so you must also build with MSVC 6 in order to be used with the stock
 249 python.exe.  If you woudl rather use a different version of
 250 VisualStudio keep in mind that you'll also have to build Python and
 251 any other extension modules that you use with that compiler because a
 252 different version of the C runtime library is used.  The stock Python
 253 2.4 and 2.5 executables are built with MSVC 7.1, and the same rules
 254 apply to it.</p>
 255 <p>If you want to build a debuggable version of wxWidgets and wxPython you
 256 will need to have also built a debug version of Python and any other
 257 extension modules you need to use.  You can tell if you have them
 258 already if there is a _d in the file names, for example python_d.exe
 259 or python25_d.dll.  If you don't need to trace through the C/C++ parts
 260 of the code with the debugger then building the normal (or hybrid)
 261 version is fine, and you can use the regular python executables with
 262 it.</p>
 263 <p>Starting with 2.5.3.0 wxPython can be built for either the monlithic
 264 or the multi-lib wxWidgets builds.  (Monolithic means that all the
 265 core wxWidgets code is in one DLL, and multi-lib means that the core
 266 code is divided into multiple DLLs.)  To select which one to use
 267 specify the MONOLITHIC flag for both the wxWidgets build and the
 268 wxPython build as shown below, setting it to either 0 or 1.</p>
 269 <p>Just like the unix versions I also use some scripts to help me build
 270 wxWidgets, but I use some non-standard stuff to do it.  So if you have
 271 bash (cygwin or probably MSYS too) or 4NT plus unix-like cat and sed
 272 programs then there is a copy of my wxWidgets build scripts in
 273 %WXDIR%\wxPython\distrib\msw.  Just copy them to
 274 %WXDIR%\build\msw and you can use them to do your build, otherwise
 275 you can do everything by hand as described below.  But if you do work
 276 by hand and something doesn't seem to be working correctly please
 277 refer to the build scripts to see what may need to be done
 278 differently.</p>
 279 <p>The *.btm files are for 4NT and the others are for bash.  They are:</p>
 280 <pre class="literal-block">
 281 .make/.make.btm        Builds the main lib and the needed contribs
 282 .mymake/.mymake.btm    Builds just one lib, used by .make
 283 .makesetup.mk          A makefile that will copy and edit setup.h
 284                        as needed for the different types of builds
 285 </pre>
 286 <p>Okay.  Here's what you've been waiting for, the instructions!  Adapt
 287 accordingly if you are using the bash shell.</p>
 288 <ol class="arabic">
 289 <li><p class="first">Set an environment variable to the root of the wxWidgets source
 290 tree.  This is used by the makefiles:</p>
 291 <pre class="literal-block">
 292 set WXWIN=%WXDIR%
 293 </pre>
 294 </li>
 295 <li><p class="first">Copy setup0.h to setup.h:</p>
 296 <pre class="literal-block">
 297 cd %WXDIR%\include\wx\msw
 298 copy setup0.h setup.h
 299 </pre>
 300 </li>
 301 <li><p class="first">Edit %WXDIR%\include\wx\msw\setup.h and change a few settings:</p>
 302 <pre class="literal-block">
 303 wxUSE_DEBUGREPORT              0
 304 wxUSE_EXCEPTIONS               0
 305 wxUSE_DIALUP_MANAGER           0
 306 wxUSE_GRAPHICS_CONTEXT         1
 307 wxUSE_GLCANVAS                 1
 308 wxUSE_POSTSCRIPT               1
 309 wxUSE_DIB_FOR_BITMAP           1
 310 </pre>
 311 <p>If you are using my build scripts then a few more settings will be
 312 changed automatically and then a copy of setup.h is placed in a
 313 subdir of %WXWIN%\libvc_dll.  If you are doing it by hand and
 314 making a UNICODE build, then also change these:</p>
 315 <pre class="literal-block">
 316 wxUSE_UNICODE                  1
 317 wxUSE_UNICODE_MSLU             1
 318 </pre>
 319 <p>If you are doing a &quot;hybrid&quot; build (which is the same as the
 320 binaries that I release) then also change these:</p>
 321 <pre class="literal-block">
 322 wxUSE_MEMORY_TRACING           0
 323 wxUSE_DEBUG_CONTEXT            0
 324 </pre>
 325 </li>
 326 <li><p class="first">Make sure that %WXDIR%\lib\vc_dll directory is on the PATH.  The
 327 wxWidgets DLLs will end up there as part of the build and so you'll
 328 need it on the PATH for them to be found at runtime.</p>
 329 </li>
 330 <li><p class="first">Change to the %WXDIR%\build\msw directory</p>
 331 <blockquote>
 332 <p>cd %WXDIR%\build\msw</p>
 333 </blockquote>
 334 </li>
 335 <li><p class="first">If using my scripts then use the .make.btm command to build
 336 wxWidgets.  It needs one command-line parameter which controls what
 337 kind of build(s) to do.  Use one of the following:</p>
 338 <pre class="literal-block">
 339 debug          Build debug version
 340 hybrid         Build hybrid version
 341 both           Both debug and hybrid
 342 debug-uni      Build a debug unicode library
 343 hybrid-uni     Hybrid unicode (see the pattern yet? ;-)
 344 both-uni       and finally both unicode libraries
 345 </pre>
 346 <p>For example:</p>
 347 <pre class="literal-block">
 348 .make hybrid
 349 </pre>
 350 <p>You can also pass additional command line parameters as needed and
 351 they will all be passed on to the nmake commands, for example to
 352 clean up the build:</p>
 353 <pre class="literal-block">
 354 .make hybrid clean
 355 </pre>
 356 <p>If <em>not</em> using my scripts then you can do it by hand by directly
 357 executing nmake with a bunch of extra command line parameters.
 358 The base set are:</p>
 359 <pre class="literal-block">
 360 nmake -f makefile.vc OFFICIAL_BUILD=1 SHARED=1 MONOLITHIC=0 USE_OPENGL=1 USE_GDIPLUS=1
 361 </pre>
 362 <p>If doing a debug build then add:</p>
 363 <pre class="literal-block">
 364 BUILD=debug
 365 </pre>
 366 <p>otherwise add these:</p>
 367 <pre class="literal-block">
 368 DEBUG_FLAG=1 CXXFLAGS=/D__NO_VC_CRTDBG__ WXDEBUGFLAG=h BUILD=release
 369 </pre>
 370 <p>If doing a Unicode build then add these flags:</p>
 371 <pre class="literal-block">
 372 UNICODE=1 MSLU=1
 373 </pre>
 374 <p>Now, from the %WXDIR%\build\msw directory run nmake with your
 375 selection of command-line flags as described above.</p>
 376 </li>
 377 <li><p class="first">When that is all done it will have built the main wxWidgets DLLs
 378 and also some of the contribs DLLs.  There should be a ton of DLLs
 379 and lots of lib files and other stuff in %WXDIR%\lib\vc_dll.</p>
 380 </li>
 381 <li><p class="first">Building wxPython on Windows is very similar to doing it for the
 382 unix systems.  We're not going to install the development version
 383 of wxPython with these commands, so it won't impact your already
 384 installed version of the latest release.  You'll be able to test
 385 with this version when you want to, and use the installed release
 386 version the rest of the time.  If you ever do want to install the
 387 development version please refer to INSTALL.txt.</p>
 388 <p>Change to the %WXDIR%\wxPython dir and run the this command,
 389 making sure that you use the version of python that you want to
 390 build for (if you have more than one on your system) and to match
 391 the MONOLITHIC flag with how you built wxWidgets:</p>
 392 <pre class="literal-block">
 393 cd %WXDIR%\wxPython
 394 python setup.py build_ext --inplace MONOLITHIC=0
 395 </pre>
 396 <p>If you are wanting to have the source files regenerated with swig,
 397 (only neccessary if you make modifications to the <tt class="docutils literal"><span class="pre">*.i</span></tt> files,)
 398 then you need to turn on the USE_SWIG flag and optionally tell it
 399 where to find the new swig executable, so add these flags:</p>
 400 <pre class="literal-block">
 401 USE_SWIG=1 SWIG=e:\\projects\\SWIG-1.2.29\\swig.exe
 402 </pre>
 403 <p>If you built a Unicode version of wxWidgets and want to also build
 404 the Unicode version of wxPython then add this flag:</p>
 405 <pre class="literal-block">
 406 UNICODE=1
 407 </pre>
 408 <p>If you have a debug version of Python and wxWidgets and want to
 409 build a debug version of wxPython too, add the --debug flag to the
 410 command line.  You should then end up with a set of <tt class="docutils literal"><span class="pre">*_d.pyd</span></tt>
 411 files in the wx package and you'll have to run <tt class="docutils literal"><span class="pre">python_d.exe</span></tt> to
 412 use them.  The debug and hybrid(release) versions can coexist.</p>
 413 <p>When the setup.py command is done you should have fully populated
 414 wxPython and wx packages locally in %WXDIR%/wxPython/wxPython and
 415 %WXDIR%/wxPython/wx, with all the extension modules (<tt class="docutils literal"><span class="pre">*.pyd</span></tt>
 416 files) located in the wx package.</p>
 417 </li>
 418 <li><p class="first">To run code with the development version of wxPython, just set the
 419 PYTHONPATH to the wxPython dir in the CVS tree.  For example:</p>
 420 <pre class="literal-block">
 421 set PYTHONPATH=%WXDIR%\wxPython
 422 cd %WXDIR\wxPython\demo
 423 python demo.py
 424 </pre>
 425 </li>
 426 </ol>
 427 </div>
 428 </div>
 429 </body>
 430 </html>