cmake: add support for some BSD's wscons input

CMakeLists.txt

@@ -1485,6 +1485,18 @@ elseif(UNIX AND NOT APPLE AND NOT RISCOS AND NOT HAIKU)
               ioctl(0, KDENABIO, 1);
               return 0;
           }" HAVE_INPUT_KBIO)
+    elseif(OPENBSD OR NETBSD)
+      check_c_source_compiles("
+          #include <sys/time.h>
+          #include <dev/wscons/wsconsio.h>
+          #include <dev/wscons/wsksymdef.h>
+          #include <dev/wscons/wsksymvar.h>
+          #include <sys/ioctl.h>
+          int main(int argc, char **argv) {
+              struct wskbd_map_data data;
+              ioctl(0, WSKBDIO_GETMAP, &data);
+              return 0;
+          }" HAVE_INPUT_WSCONS)
     endif()
 
     if(HAVE_INPUT_EVENTS)
@@ -1506,6 +1518,10 @@ elseif(UNIX AND NOT APPLE AND NOT RISCOS AND NOT HAIKU)
       set(SDL_INPUT_FBSDKBIO 1)
     endif()
 
+    if(HAVE_INPUT_WSCONS)
+      set(SDL_INPUT_WSCONS 1)
+    endif()
+
     check_include_file("libudev.h" HAVE_LIBUDEV_H)
     check_include_file("sys/inotify.h" HAVE_SYS_INOTIFY_H)
     check_symbol_exists(inotify_init "sys/inotify.h" HAVE_INOTIFY_INIT)

include/SDL_config.h.cmake

@@ -332,6 +332,7 @@
 #cmakedefine SDL_INPUT_LINUXEV @SDL_INPUT_LINUXEV@
 #cmakedefine SDL_INPUT_LINUXKD @SDL_INPUT_LINUXKD@
 #cmakedefine SDL_INPUT_FBSDKBIO @SDL_INPUT_FBSDKBIO@
+#cmakedefine SDL_INPUT_WSCONS @SDL_INPUT_WSCONS@
 #cmakedefine SDL_JOYSTICK_ANDROID @SDL_JOYSTICK_ANDROID@
 #cmakedefine SDL_JOYSTICK_HAIKU @SDL_JOYSTICK_HAIKU@
 #cmakedefine SDL_JOYSTICK_WGI @SDL_JOYSTICK_WGI@