This is an experiment to see how the global (variable) universe is handled when a shared library is opened with dlopen using various mode flags.
The shellscript run-load-two-universes runs through sixteen tests with different dlopen settings.
The results:
A RTLD_GLOBAL opened MulleObjC shared library will not coexist with another shared library which is opened after it. Unless that shared library is opened with RTLD_DEEPBIND.
Otherwise RTLD_LOCAL opened shared libraries have no problem.
Memo: A RTLD_GLOBAL shared library is identical to a RTLD_LOCAL, if no dlopen calls follow!
This is a mulle-sde project.
It has it's own virtual environment, that will be automatically setup for you once you enter it with:
mulle-sde MulleLoadTwoUniverses
Now you can let mulle-sde fetch the required dependencies and build the project for you:
mulle-sde craft