NDOF: compile 3D mouse code only if WITH_INPUT_NDOF

When WITH_INPUT_NDOF is disabled, 3D mouse handling code is removed
from:

- GHOST (was mostly done, finished the job)
- window manager
- various editors
- RNA
- keymaps

The input tab of user prefs does not show 3D mouse settings. Key map
editor does not show NDOF mappings.

DNA does not change.

On my Mac the compiled binary is 42KB smaller after this change. It
runs fine WITH_INPUT_NDOF on or off.

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/windowmanager/WM_types.h b/source/blender/windowmanager/WM_types.h
index 3c0e99bddd0..0fe3e8a0fcf 100644
--- a/source/blender/windowmanager/WM_types.h
+++ b/source/blender/windowmanager/WM_types.h
@@ -485,6 +485,7 @@ typedef enum {  /* motion progress, for modal handlers */
 	P_FINISHED
 } wmProgress;
 
+#ifdef WITH_INPUT_NDOF
 typedef struct wmNDOFMotionData {
 	/* awfully similar to GHOST_TEventNDOFMotionData... */
 	/* Each component normally ranges from -1 to +1, but can exceed that.
@@ -496,6 +497,7 @@ typedef struct wmNDOFMotionData {
 	float dt; /* time since previous NDOF Motion event */
 	wmProgress progress; /* is this the first event, the last, or one of many in between? */
 } wmNDOFMotionData;
+#endif /* WITH_INPUT_NDOF */
 
 typedef struct wmTimer {
 	struct wmTimer *next, *prev;