omr_main_function is a static library that helps OMR developers write portable executables. This library defines the int main() function, which handles conversion of wchar_t or EBCDIC command-line options into OMR's internal string format (UTF-8), before calling out to the user provided omr_main_entry function.
link privately against the omr_main_function library. The main entry to your program is now:
extern "C" int
omr_main_entry(int argc, char **argv, char **envp);