I’m getting constant warnings for one module among many:
┌ Warning: Module my_module_1 with build ID 54547777901434 is missing from the cache.
│ This may mean my_module_1 [top-level] does not support precompilation but is imported by a module that does.
└ @ Base loading.jl:941
and the only difference I can think of between that module and the others is that it is the only one which uses ccall(…) to call an external system library. Does using ccall(…) in a module prevent its precompilation? Or is it possibly because the ccall(…) passes a Ref(…) on non-constant program data?