Hi, This is followup to...
https://lists.yoctoproject.org/pipermail/yocto/2014-February/018209.html ...for others dealing with 'cross-python' like issues. This is the python equivalent to cross compiling. I found a number of resources related to python cross-compiling and even a pycon talk where the presenter covers the hurdles involved to get distutil to “cross” build as well. http://stackoverflow.com/questions/19120938/cross-compiling-python-2-7-4 http://www.droboports.com/app-repository/python-2-7-5 http://www.youtube.com/watch?v=nhr-YErfW8k http://randomsplat.com/id5-cross-compiling-python-for-embedded-linux.html Fortunately the Yocto/OpenEmbedded folk have these sorted out - you just have to look in the right place. My resolution was to ensure that the correct native python is used. There is the host's native python that is used to run the tools of the build system (including 'bitbake' itself). Then there is a python-native that gets symlinked as 'nativepython' into the native sysroot. This 'nativepython' is setup sort of as a crosscompiler python if you want to compile .py to .pyo/.pyc and put the compiled files on your target. Finally, there is the python that runs on the target system. --- My headache was due to using the host's native python (actually ADT bundled python on CentOS) when I needed to use 'nativepython'. With a small amount of shoehorn work, I was readily able to get make rules and recipes to swig wrap some libraries as python extensions and to build using nativepython. There are a couple of variables you have to ensure get passed/exported through your make to be available to 'nativepython' to point it to the right sysroot locations of your target. BUILD_SYS=${BUILD_SYS} HOST_SYS=${HOST_SYS} STAGING_LIBDIR=${STAGING_LIBDIR} STAGING_INCDIR=${STAGING_INCDIR} If you are using swig-native, you also need to use "-I" to get your target sysroot include directories to it as well. -- Regards, Darcy --- Darcy Watkins Senior Software Developer In Motion Technology, Inc. 350-625 Agnes St. New Westminster, BC Canada, V3M 5Y4 [P1] _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto