rb_w32_uaspawn_flags  303 include/ruby/win32.h extern rb_pid_t rb_w32_uaspawn_flags(int, const char *, char *const *, DWORD);
rb_w32_uaspawn_flags 1427 process.c      	pid = rb_w32_uaspawn_flags(P_NOWAIT, prog ? RSTRING_PTR(prog) : 0, argv, flags);
rb_w32_uaspawn_flags 1451 win32/win32.c      return rb_w32_uaspawn_flags(mode, prog, argv, 0);