wxWidgets/wxPython/docs/BUILD.devel.txt

Building wxPython 2.5 for Development and Testing
=================================================

This file describes how I build wxWindows 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 or a checkout from CVS.  I'll also assume that you know what
you are doing and so I may not be as detailed here as I am in other
BUILD docs.

If you want to make changes to any of the *.i files, or 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 when it is released.  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.




Building on Linux and OS X
--------------------------

These two 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 wxWindows and install it to an out of the way
place, then do the same for wxPython.


1. Create a build directory in the main wxWindows dir, and configure
   wxWindows.  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 ".configure" 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::

	 mkdir bld
	 cd bld
	 ../configure --prefix=/opt/wx/2.5 \
		      --with-gtk \
		      --with-opengl \
		      --disable-monolithic \
		      --enable-debug \
		      --enable-geometry
		      

   On OS X of course you'll want to use --with-mac instead of
   --with-gtk.  For GTK2 and unicode add:
		    	 
		      --enable-gtk2 \
		      --enable-unicode

   Notice that I used a prefix of /opt/wx/2.5.  You can use whatever
   path you want, even the standard ones if you like, but this lets me
   easily have multiple versions and ports of wxWindows "installed"
   and makes it easy to switch between them.


2. To build and install wxWindows you could just use "make" but there
   are other libraries 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 ".make" (I use the leading ".  so when I do "rm -r *"
   in my build dir I don't lose my scripts too.)  This is what it
   looks like::

        make $* \
            && make -C contrib/src/gizmos $* \
            && make -C contrib/src/ogl CXXFLAGS="-DwxUSE_DEPRECATED=0" $* \
            && make -C contrib/src/stc $* \
            && make -C contrib/src/xrc $* 
   
   So you just use .make as if it where make, but don't forget to set
   the execute bit on .make first!::

         .make
	 .make install

   When it's done you should have an installed set of files under
   /opt/wx/2.5 containing just wxWindows.  Now to use this version of
   wxWindows 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.


3. I also have a script to help me build wxPython and it is checked in
   to the CVS as wxWindows/wxPython/b, but 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.

   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 you ever do want to install the development verison just
   use the normal distutils commands to do it.

   Make sure that the first wx-config found on the PATH is the one you
   installed above, and then change to the wxWindows/wxPython dir and
   run the this command::

         cd wxPython
	 python2.3 setup.py build_ext --inplace --debug

   If you are building with GTK2 then add the following flags to the
   command line::

	 WXPORT=gtk2 UNICODE=1

   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::

	 USE_SWIG=1 SWIG=/opt/swig/bin/swig

   When the setup.py command is done you should have fully populated
   wxPython and wx packages locally in wxWindows/wxPython/wxPython and
   .../wx, with all the extension modules (*.so files) located in the
   wx package.


4. To run code with the development verison of wxPython, just set the
   PYTHONPATH to the wxPython dir in the CVS tree.  For example::

        export LD_LIBRARY=/opt/wx/2.5/lib
	export PYTHONPATH=/myprojects/wxWindows/wxPython
	cd /myprojects/wxWindows/wxPython/demo
	python2.3 demo.py





Building on Windows
-------------------

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 likbrary is
used.  The Python executable that comes from PythonLabs and the
wxPythons that I distribute are built with MSVC 6 with all the Service
Packs applied.

If you want to build a debugable version of wxWindows 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.

Just like the unix versions I also use some scripts to help me build
wxWindows, but I use some non-standard stuff to do it.  So if you want
to use them too you'll need to get a copy or 4DOS or 4NT from
http://www.jpsoft.com/ 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 a lof steps involved and I won't be going into details
here.  There is a copy of my build scripts in wxWindows\wxPython\distrib\msw


1. Set an environment variable to the root of the wxWindows source
   tree::

	 set WXWIN=e:\projects\wxWindows

2. Copy setup0.h to setup.h

	 cd %WXWIN%\include\wx\msw
	 copy setup0.h setup.h

3. Edit setup.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::

	 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
	 

4. Make a %WXWIN%\BIN directory and add it to the PATH.  My build
   scripts will copy the wxWindows DLLs there.

5. Change to the %WXWIN%\build\msw directory and copy my build scripts
   there.

6. Use the .make command to build wxWindows.  It needs one
   command-line parameter which controls what kind of build(s) to do.
   Use one of the following::

	 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

   For example::

         .make hybrid


7.  When that is done there should be a ton of DLLs in %WXDIR%\bin and
    lots of lib files and stuff in %WXDIR%\lib\vc_dll


8. 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 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 just use the normal distutils commands to do
   it.

   Change to the wxWindows\wxPython dir and run the this command::

         cd %WXWIN%\wxPython
	 python setup.py build_ext --inplace 

   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::

	 USE_SWIG=1 SWIG=e:\projects\SWIG-cvs\swig.exe

   If you have a debug version of Python and wxWindows 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 use python_d.exe to use them.
   The debug and hybrid(release) versions can coexist.

   When the setuyp.py command is done you should have fully populated
   wxPython and wx packages locally in wxWindows/wxPython/wxPython and
   .../wx, with all the extension modules (*.pyd files) located in the
   wx package.


9. To run code with the development verison of wxPython, just set the
   PYTHONPATH to the wxPython dir in the CVS tree.  For example::

	set PYTHONPATH=e:\projects\wxWindows\wxPython
	cd e:\projects\wxWindows\wxPython
	python demo.py