Building on Windows

[klonuo]

Here are instruction how to make this package work on Windows, by using MinGW system. Probably it can be done with Visual Studio, but I lack skills to make such magic.

So assuming user has MinGW available, additional two packages are needed:

1. potrace source: http://potrace.sourceforge.net/#downloading
2. agg source: http://www.antigrain.com/download/index.html

I extracted both packages in my C:\src folder. Both are easy to build by executing ./configure; make and ./autogen.sh; make respectively, on MSYS prompt.

After that, we need some variables to build pypotrace successfully:

First, includes paths:

• "numpy/arrayobject.h": C:/Python27/Lib/site-packages/numpy/core/include
• potrace headers: C:/src/potrace-1.11/src
• agg headers: C:/src/agg-2.5

there is a little catch for agg includes, as paths referenced in cpp sources point to agg2/*.h while in downloaded agg package we don't have agg2 folder. For me it was easiest to rename C:/src/agg-2.5/include to C:/src/agg-2.5/agg2 and use C:/src/agg-2.5 as agg include folder.

Next, libdirs for libraries we build above:

• potrace: C:/src/potrace-1.11/src/.libs
• agg: C:/src/agg-2.5/src

and we can make pypotrace build command, and execute it:

python setup.py build_ext -IC:/Python27/Lib/site-packages/numpy/core/include;C:/src/potrace-1.11/src;C:/src/agg-2.5 -LC:/src/potrace-1.11/src/.libs;C:/src/agg-2.5/src

Finally install the package:

C:\src\git\pypotrace>python setup.py install
running install
running build
running build_py
copying potrace\__init__.py -> build\lib.win32-2.7\potrace
copying potrace\agg\__init__.py -> build\lib.win32-2.7\potrace\agg
running build_ext
skipping 'potrace\_potrace.c' Cython extension (up-to-date)
skipping 'potrace\bezier.cpp' Cython extension (up-to-date)
skipping 'potrace/agg\curves.cpp' Cython extension (up-to-date)
running install_lib
creating C:\Python27\Lib\site-packages\potrace
creating C:\Python27\Lib\site-packages\potrace\agg
copying build\lib.win32-2.7\potrace\agg\curves.pyd -> C:\Python27\Lib\site-packages\potrace\agg
copying build\lib.win32-2.7\potrace\agg\__init__.py -> C:\Python27\Lib\site-packages\potrace\agg
copying build\lib.win32-2.7\potrace\bezier.pyd -> C:\Python27\Lib\site-packages\potrace
copying build\lib.win32-2.7\potrace\_potrace.pyd -> C:\Python27\Lib\site-packages\potrace
copying build\lib.win32-2.7\potrace\__init__.py -> C:\Python27\Lib\site-packages\potrace
byte-compiling C:\Python27\Lib\site-packages\potrace\agg\__init__.py to __init__.pyc
byte-compiling C:\Python27\Lib\site-packages\potrace\__init__.py to __init__.pyc
running install_egg_info
Writing C:\Python27\Lib\site-packages\pypotrace-0.1-py2.7.egg-info

Thanks :)

[flupke]

Included your instructions in the README, thanks !