Add dummy cdrom ioctl module for other OSes

src/Makefile.am

@@ -97,6 +97,10 @@ if OS_LINUX
 pcem_SOURCES += cdrom-ioctl-linux.c wx-sdl2-display.c
 endif
 
+if OS_OTHER
+pcem_SOURCES += cdrom-ioctl-dummy.c wx-sdl2-display.c
+endif
+
 if OS_MACOSX
 pcem_SOURCES += cdrom-ioctl-osx.c wx-sdl2-display.c
 pcem_CFLAGS += -DPCEM_RENDER_WITH_TIMER -DPCEM_RENDER_TIMER_LOOP

src/cdrom-ioctl-dummy.c

@@ -0,0 +1,20 @@
+/*Dummy CD-ROM support for other OSes*/
+
+#include <stdint.h>
+
+int old_cdrom_drive;
+
+void ioctl_audio_callback(int16_t *output, int len) { }
+
+void ioctl_audio_stop() { }
+
+void ioctl_reset() { }
+
+void ioctl_set_drive(char d) { }
+
+int ioctl_open(char d)
+{
+        return 0;
+}
+
+void ioctl_close(void) { }