added SDL_JOYSTICK_OS2 to SDL_config.h.in and SDL_config.h.cmake
diff --git a/include/SDL_config.h.cmake b/include/SDL_config.h.cmake
index 3d63541..b006545 100644
--- a/include/SDL_config.h.cmake
+++ b/include/SDL_config.h.cmake
@@ -305,6 +305,7 @@
#cmakedefine SDL_JOYSTICK_MFI @SDL_JOYSTICK_MFI@
#cmakedefine SDL_JOYSTICK_LINUX @SDL_JOYSTICK_LINUX@
#cmakedefine SDL_JOYSTICK_WINMM @SDL_JOYSTICK_WINMM@
+#cmakedefine SDL_JOYSTICK_OS2 @SDL_JOYSTICK_OS2@
#cmakedefine SDL_JOYSTICK_USBHID @SDL_JOYSTICK_USBHID@
#cmakedefine SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H @SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H@
#cmakedefine SDL_JOYSTICK_HIDAPI @SDL_JOYSTICK_HIDAPI@
diff --git a/include/SDL_config.h.in b/include/SDL_config.h.in
index 5116679..d40cac5 100644
--- a/include/SDL_config.h.in
+++ b/include/SDL_config.h.in
@@ -307,6 +307,7 @@
#undef SDL_JOYSTICK_LINUX
#undef SDL_JOYSTICK_ANDROID
#undef SDL_JOYSTICK_WINMM
+#undef SDL_JOYSTICK_OS2
#undef SDL_JOYSTICK_USBHID
#undef SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H
#undef SDL_JOYSTICK_HIDAPI