git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45415 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
		
			
				
	
	
		
			439 lines
		
	
	
		
			18 KiB
		
	
	
	
		
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			439 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
Building wxPython 2.8 for Development and Testing
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=================================================
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This file describes how I build wxWidgets and wxPython while doing
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development and testing, and is meant to help other people that want
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to do the same thing.  I'll assume that you are using either a CVS
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snapshot from http://wxWidgets.org/snapshots/, a checkout from CVS, or
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one of the released wxPython-src-2.8.* tarballs.  I'll also assume that
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you know your way around your system, the compiler, etc. and most
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importantly, that you know what you are doing!  ;-)
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If you want to also install the version of wxPython you build to be in
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your site-packages dir and be your default version of wxPython, then a
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few additional steps are needed, and you may want to use slightly
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different options.  See the INSTALL_ document for more details.  If
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you only use the instructions in this BUILD_ document file then you
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will end up with a separate installation of wxPython and you can
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switch back and forth between this and the release version that you
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may already have installed.
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.. _INSTALL: INSTALL.html
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.. _BUILD: BUILD.html
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If you want to make changes to any of the ``*.i`` files, (SWIG
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interface definition files,) or to regenerate the extension sources or
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renamer modules, then you will need an up to date version of SWIG,
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plus some patches.  Get the sources for version 1.3.29, and then apply
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the patches in wxPython/SWIG and then build SWIG like normal.  See the
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README.txt in the wxPython/SWIG dir for details about each patch and
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also info about those that may already have been applied to the SWIG
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sources.  If you install this build of SWIG to a location that is not
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on the PATH (so it doesn't interfere with an existing SWIG install for
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example) then you can use a setup.py command-line option named SWIG
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set to the full path name of the executable and the wxPython build will
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use it.  See below for an example.
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In the text below I'll use WXDIR with environment variable syntax
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(either $WXDIR or %WXDIR%) to refer to the top level directory where
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your wxWidgets and wxPython sources are located.  It will equate to
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whereever you checked out the wxWidgets module from CVS, or untarred
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the wxPython-src tarball to.  You can either substitute the $WXDIR text
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below with your actual dir, or set the value in the environment and
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use it just like you see it below.
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If you run into what appears to be compatibility issues between
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wxWidgets and wxPython while building wxPython, be sure you are using
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the wxWidgets sources included with the wxPython-src tarball or the
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CVS snapshot, and not a previously installed version or a version
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installed from one of the standard wxWidgets installers.  With the
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"unstable" releases (have a odd-numbered minor release value, where
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the APIs are allowed to change) there are often significant
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differences between the W.X.Y release of wxWidgets and the W.X.Y.Z
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release of wxPython.
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Building on Unix-like Systems (e.g. Linux and OS X)
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---------------------------------------------------
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These platforms are built almost the same way while in development
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so I'll combine the descriptions about their build process here.
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First we will build wxWidgets and install it to an out of the way
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place, then do the same for wxPython.
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1. Create a build directory in the main wxWidgets dir, and configure
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   wxWidgets.  If you want to have multiple builds with different
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   configure options, just use different subdirectories.  I normally
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   put the configure command in a script named ".configure" in each
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   build dir so I can easily blow away everything in the build dir and
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   rerun the script without having to remember the options I used
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   before::
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         cd $WXDIR
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         mkdir bld
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         cd bld
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         ../configure --prefix=/opt/wx/2.8 \
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                      --with-gtk \
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		      --with-gnomeprint \
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                      --with-opengl \
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                      --enable-debug \
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                      --enable-geometry \
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		      --enable-graphics_ctx \
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                      --enable-sound --with-sdl \
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		      --enable-mediactrl \
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                      --enable-display \
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                      --disable-debugreport \
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   On OS X of course you'll want to use --with-mac instead of
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   --with-gtk and --with-gnomeprint.  
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   Notice that above I used a prefix option of "/opt/wx/2.8".  You can
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   use whatever path you want, such as a path in your HOME dir or even
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   one of the standard prefix paths such as /usr or /usr/local if you
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   like, but using /opt this way lets me easily have multiple versions
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   and ports of wxWidgets "installed" and makes it easy to switch
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   between them, without impacting any versions of wxWidgets that may
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   have been installed via an RPM or whatever.  For the rest of the
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   steps below be sure to also substitute "/opt/wx/2.8" with whatever
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   prefix you choose for your build.
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   **NOTE**: Due to a recent change there is currently a dependency
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   problem in the multilib builds of wxWidgets on OSX, so I have
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   switched to using a monolithic build.  That means that all of the
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   core wxWidgets code is placed in in one shared library instead of
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   several.  wxPython can be used with either mode, so use whatever
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   suits you on Linux and etc. but use monolithic on OSX.  To switch
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   to the monolithic build of wxWidgets just add this configure flag::
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                     --enable-monolithic \
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   By default GTK 2.x will be used for the build.  If you would rather
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   use GTK 1.2.x for some reason then you can force configure to use
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   it by changing the --with-gtk flag to specify it like this::
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                      --with-gtk=1 \
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   To make the wxWidgets build be unicode enabled (strongly
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   recommended unless you are building with GTK1) then add the
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   following flag.  When wxPython is unicode enabled then all strings
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   that are passed to wx functions and methods will first be converted
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   to unicode objects, and any 'strings' returned from wx functions
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   and methods will actually be unicode objects.::
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                      --enable-unicode \
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   If you want to use the image and zlib libraries included with
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   wxWidgets instead of those already installed on your system, (for
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   example, to reduce dependencies on 3rd party libraries) then you
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   can add these flags to the configure command::
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                     --with-libjpeg=builtin \
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                     --with-libpng=builtin \
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                     --with-libtiff=builtin \
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                     --with-zlib=builtin \
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2. To build and install wxWidgets you just need to run "make" and
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   "make install" and the Makefile will take care of all the work for you::
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         make
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         make install
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   When it's done you should have an installed set of files under
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   /opt/wx/2.8 containing just wxWidgets.  Now to use this version of
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   wxWidgets you just need to add /opt/wx/2.8/bin to the PATH and set
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   LD_LIBRARY_PATH (or DYLD_LIBRARY_PATH on OS X) to /opt/wx/2.8/lib.
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3. I also have a script to help me build wxPython and it is checked in
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   to the CVS as wxWidgets/wxPython/b, but you probably don't want to
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   use it as it's very cryptic and expects that you want to run SWIG,
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   so if you don't have the latest patched up version of SWIG then
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   you'll probably get stuck.  So in this document I'll just give the
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   raw commands instead.
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   We're not going to install the development version of wxPython with
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   these commands, so it won't impact your already installed version
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   of the latest release.  You'll be able test with this version when
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   you want to, and use the installed release version the rest of the
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   time.  If you want to install the development version please read
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   INSTALL.txt.
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   If you have more than one version of Python on your system then be
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   sure to use the version of Python that you want to use when running
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   wxPython programs to run the setup.py commands below.  I'll be
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   using python2.5.
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   Make sure that the first wx-config found on the PATH is the one
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   belonging to the wxWidgets that you installed above, and then
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   change to the $WXDIR/wxPython dir and run the this command::
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         cd $WXDIR/wxPython
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         python2.5 setup.py build_ext --inplace --debug
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   If your new wx-config script is not on the PATH, or there is some
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   other version of it found first, then you can add this to the
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   command line to ensure your new one is used instead::
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         WX_CONFIG=/opt/wx/2.8/bin/wx-config
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   By default setup.py will assume that you built wxWidgets to use
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   GTK2.  If you built wxWidgets to use GTK 1.2.x then you should add
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   this flag to the command-line::
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         WXPORT=gtk 
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   Setup.py will assume by default that you are using a unicode build
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   of wxWidgets.  If not then you can use this flag::
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         UNICODE=0
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   If you are wanting to have the source files regenerated with swig,
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   (only neccessary if you make modifications to the ``*.i`` files,)
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   then you need to turn on the USE_SWIG flag and optionally tell it
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   where to find the new swig executable, so add these flags::
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         USE_SWIG=1 SWIG=/opt/swig/bin/swig
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   If you get errors about being unable to find libGLU, wxGLCanvas
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   being undeclared, or something similar then you can add
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   BUILD_GLCANVAS=0 to the setup.py command line to disable the
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   building of the glcanvas module.
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   When the setup.py command is done you should have a fully populated
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   (but uninstalled) wx package located in your $WXDIR/wxPython/wx
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   directory.
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4. To run code with the development version of wxPython, just set the
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   PYTHONPATH to the wxPython dir located in the source tree.  For
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   example::
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        export LD_LIBRARY_PATH=/opt/wx/2.8/lib
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        export PYTHONPATH=$WXDIR/wxPython
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        cd $WXDIR/wxPython/demo
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        python2.5 demo.py
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   OS X NOTE: Depending on your version of OS X and Python you may
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   need to use "pythonw" on the command line to run wxPython
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   applications.  This version of the Python executable is part of the
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   Python Framework and is allowed to interact with the display.  You
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   can also double click on a .py or a .pyw file from the finder
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   (assuming that the PythonLauncher app is associated with these file
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   extensions) and it will launch the Framework version of Python for
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   you.  For information about creating Applicaiton Bundles of your
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   wxPython apps please see the wiki and the mail lists.
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   SOLARIS NOTE: If you get unresolved symbol errors when importing
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   wxPython and you are running on Solaris and building with gcc, then
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   you may be able to work around the problem by uncommenting a bit of
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   code in config.py and building again.  Look for 'SunOS' in config.py
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   and uncomment the block containing it.  The problem is that Sun's ld
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   does not automatically add libgcc to the link step.
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Building on Windows
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-------------------
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The Windows builds currently require the use of Microsoft Visual C++.
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Theoretically, other compilers (such as mingw32 or the Borland
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compilers) can also be used but I've never done the work to make that
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happen.  If you want to try that then first you'll want to find out if
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there are any tricks that have to be done to make Python extension
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modules using that compiler, and then make a few changes to setup.py
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to accommodate that.  (And send the patches to me.)  
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The standard Python 2.3 and earlier are built with MS Visual C 6.0 and
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so you must also build with MSVC 6 in order to be used with the stock
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python.exe.  If you woudl rather use a different version of
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VisualStudio keep in mind that you'll also have to build Python and
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any other extension modules that you use with that compiler because a
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different version of the C runtime library is used.  The stock Python
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2.4 and 2.5 executables are built with MSVC 7.1, and the same rules
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apply to it.
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If you want to build a debuggable version of wxWidgets and wxPython you
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will need to have also built a debug version of Python and any other
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extension modules you need to use.  You can tell if you have them
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already if there is a _d in the file names, for example python_d.exe
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or python25_d.dll.  If you don't need to trace through the C/C++ parts
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of the code with the debugger then building the normal (or hybrid)
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version is fine, and you can use the regular python executables with
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it.
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Starting with 2.5.3.0 wxPython can be built for either the monlithic
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or the multi-lib wxWidgets builds.  (Monolithic means that all the
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core wxWidgets code is in one DLL, and multi-lib means that the core
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code is divided into multiple DLLs.)  To select which one to use
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specify the MONOLITHIC flag for both the wxWidgets build and the
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wxPython build as shown below, setting it to either 0 or 1.
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Just like the unix versions I also use some scripts to help me build
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wxWidgets, but I use some non-standard stuff to do it.  So if you have
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bash (cygwin or probably MSYS too) or 4NT plus unix-like cat and sed
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programs then there is a copy of my wxWidgets build scripts in
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%WXDIR%\\wxPython\\distrib\\msw.  Just copy them to
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%WXDIR%\\build\\msw and you can use them to do your build, otherwise
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you can do everything by hand as described below.  But if you do work
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by hand and something doesn't seem to be working correctly please
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refer to the build scripts to see what may need to be done
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differently.
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The \*.btm files are for 4NT and the others are for bash.  They are::
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   .make/.make.btm        Builds the main lib and the needed contribs
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   .mymake/.mymake.btm    Builds just one lib, used by .make
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   .makesetup.mk          A makefile that will copy and edit setup.h
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                          as needed for the different types of builds
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Okay.  Here's what you've been waiting for, the instructions!  Adapt
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accordingly if you are using the bash shell.
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1. Set an environment variable to the root of the wxWidgets source
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   tree.  This is used by the makefiles::
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         set WXWIN=%WXDIR%
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2. Copy setup0.h to setup.h::
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         cd %WXDIR%\include\wx\msw
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         copy setup0.h setup.h
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3. Edit %WXDIR%\\include\\wx\\msw\\setup.h and change a few settings::
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	 wxUSE_DEBUGREPORT 		0
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	 wxUSE_EXCEPTIONS    		0
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	 wxUSE_DIALUP_MANAGER   	0
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	 wxUSE_GRAPHICS_CONTEXT 	1
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	 wxUSE_GLCANVAS       		1
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	 wxUSE_POSTSCRIPT  		1
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   If you are using my build scripts then a few more settings will be
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   changed automatically and then a copy of setup.h is placed in a
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   subdir of %WXWIN%\\lib\vc_dll.  If you are doing it by hand and
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   making a UNICODE build, then also change these::
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         wxUSE_UNICODE                  1
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         wxUSE_UNICODE_MSLU             1
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   If you are doing a "hybrid" build (which is the same as the
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   binaries that I release) then also change these::
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         wxUSE_MEMORY_TRACING           0
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         wxUSE_DEBUG_CONTEXT            0
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4. Make sure that %WXDIR%\\lib\\vc_dll directory is on the PATH.  The
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   wxWidgets DLLs will end up there as part of the build and so you'll
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   need it on the PATH for them to be found at runtime.
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5. Change to the %WXDIR%\\build\\msw directory 
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         cd %WXDIR%\\build\\msw
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6. If using my scripts then use the .make.btm command to build
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   wxWidgets.  It needs one command-line parameter which controls what
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   kind of build(s) to do.  Use one of the following::
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         debug          Build debug version
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         hybrid         Build hybrid version
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         both           Both debug and hybrid
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         debug-uni      Build a debug unicode library
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         hybrid-uni     Hybrid unicode (see the pattern yet? ;-)
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         both-uni       and finally both unicode libraries
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   For example::
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         .make hybrid
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   You can also pass additional command line parameters as needed and
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   they will all be passed on to the nmake commands, for example to
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   clean up the build::
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         .make hybrid clean
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   If *not* using my scripts then you can do it by hand by directly
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   executing nmake with a bunch of extra command line parameters.
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   The base set are::
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        nmake -f makefile.vc OFFICIAL_BUILD=1 SHARED=1 MONOLITHIC=0 USE_OPENGL=1 USE_GDIPLUS=1 
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   If doing a debug build then add::
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       BUILD=debug 
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   otherwise add these::
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       DEBUG_FLAG=1 CXXFLAGS=/D__NO_VC_CRTDBG__ WXDEBUGFLAG=h BUILD=release
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   If doing a Unicode build then add these flags::
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       UNICODE=1 MSLU=1
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   Now, from the %WXDIR%\\build\\msw directory run nmake with your
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   selection of command-line flags as described above.  
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7.  When that is all done it will have built the main wxWidgets DLLs.
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    There should be a ton of DLLs and lots of lib files and other
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    stuff in %WXDIR%\\lib\\vc_dll.
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8. Building wxPython on Windows is very similar to doing it for the
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   unix systems.  We're not going to install the development version
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   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
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   version the rest of the time.  If you ever do want to install the
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   development version please refer to INSTALL.txt.
 | 
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   Change to the %WXDIR%\\wxPython dir and run the this command,
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   making sure that you use the version of python that you want to
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   build for (if you have more than one on your system) and to match
 | 
						|
   the MONOLITHIC flag with how you built wxWidgets::
 | 
						|
 | 
						|
         cd %WXDIR%\wxPython
 | 
						|
         python setup.py build_ext --inplace MONOLITHIC=0
 | 
						|
 | 
						|
   If you are wanting to have the source files regenerated with swig,
 | 
						|
   (only neccessary if you make modifications to the ``*.i`` files,)
 | 
						|
   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::
 | 
						|
 | 
						|
         USE_SWIG=1 SWIG=e:\\projects\\SWIG-1.2.29\\swig.exe
 | 
						|
 | 
						|
   If you built a Unicode version of wxWidgets and want to also build
 | 
						|
   the Unicode version of wxPython then add this flag::
 | 
						|
 | 
						|
         UNICODE=1
 | 
						|
 | 
						|
   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 ``*_d.pyd``
 | 
						|
   files in the wx package and you'll have to run ``python_d.exe`` to
 | 
						|
   use them.  The debug and hybrid(release) versions can coexist.
 | 
						|
 | 
						|
   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 (``*.pyd``
 | 
						|
   files) located in the wx package.
 | 
						|
 | 
						|
 | 
						|
9. To run code with the development version of wxPython, just set the
 | 
						|
   PYTHONPATH to the wxPython dir in the CVS tree.  For example::
 | 
						|
 | 
						|
        set PYTHONPATH=%WXDIR%\wxPython
 | 
						|
        cd %WXDIR\wxPython\demo
 | 
						|
        python demo.py
 | 
						|
 | 
						|
 |