module; #include "include/include.h" #ifndef include_h_included # error "include define not found" #endif #include "includes/includes.h" #ifndef includes_h_included # error "includes define not found" #endif #ifndef FROM_USAGE_REQS # error "missing `FROM_USAGE_REQS` define" #endif export module importable; extern "C++" { int forwarding(); } export int from_import() { return forwarding(); }