Results 3 issues of kwhr0

1. In `gui/drv_cocoa.m`, you need to remove the last argument of `AG_ProcessMouseMotion()`. 1. In `core/Makefile` and `gui/Makefile`, you need following line. ``` CFLAGS += -D_DARWIN_C_SOURCE ``` Without this, dirfd, u_int,...

On macOS Sonoma, SDL_GL_CreateContext() fails after calling SDL_GetWindowSurface(). https://discourse.libsdl.org/t/sdl-window-opengl-on-mac-sonoma-sdl-2-28-5-not-working/48866 The error message is as follows. ``` SDL_GL_CreateContext: The specified window isn't an OpenGL window ``` This causes AG_WindowShow() to fail....

For example, `mpys r2` is displayed as `data >01c2`.