Here's a concrete way to help with #2011:

The cython_freeze script can generate a main() function for an embedded CPython runtime that statically links and initialises multiple extension modules. It would be nice to have this integrated into the --embed feature, e.g. with a new option --embed-modules=moda,pkg.modb,modc.

Tasks:

• move the script into the Cython.Build package as a new module
• add the new option to CmdLine.py
• integrate the module initialisation from cython_freeze into Embed.c as an optional feature (e.g. using Tempita templating, look out for usages of TempitaUtilityCode)
• implement the new command line option in ModuleNode.py (look for usage of Embed.c)

For testing, there is a somewhat hacked-up EmbedTest in runtests.py that could be extended. A test scenario would be linking two simple Cython extensions together into one executable.