spelling corrections in comments and quiet warning

3 files changed, 4 insertions, 4 deletions

diff --git a/source/blender/makesdna/DNA_action_types.h b/source/blender/makesdna/DNA_action_types.h
index 29e0b18b97d..db574160771 100644
--- a/source/blender/makesdna/DNA_action_types.h
+++ b/source/blender/makesdna/DNA_action_types.h
@@ -340,7 +340,7 @@ typedef struct bPose {
 	void *ikdata;				/* temporary IK data, depends on the IK solver. Not saved in file */
 	void *ikparam;				/* IK solver parameters, structure depends on iksolver */ 
 	
-	bAnimVizSettings avs;		/* settings for visualisation of bone animation */
+	bAnimVizSettings avs;		/* settings for visualization of bone animation */
 	char proxy_act_bone[32];    /* proxy active bone name*/
 } bPose;
 
@@ -653,7 +653,7 @@ typedef enum eAnimEdit_AutoSnap {
  * Constraint Channels in certain situations. 
  *
  * Action-Channels can only belong to one group at a time, but they still live the Action's
- * list of achans (to preserve backwards compatability, and also minimise the code
+ * list of achans (to preserve backwards compatibility, and also minimize the code
  * that would need to be recoded). Grouped achans are stored at the start of the list, according
  * to the position of the group in the list, and their position within the group. 
  */
diff --git a/source/blender/makesdna/DNA_constraint_types.h b/source/blender/makesdna/DNA_constraint_types.h
index e04bdd4ec45..00f6f2433af 100644
--- a/source/blender/makesdna/DNA_constraint_types.h
+++ b/source/blender/makesdna/DNA_constraint_types.h
@@ -228,7 +228,7 @@ typedef struct bMinMaxConstraint {
 	int			minmaxflag;
 	float		offset;
 	int			flag;
-	short		sticky, stuck, pad1, pad2; /* for backward compatability */
+	short		sticky, stuck, pad1, pad2; /* for backward compatibility */
 	float		cache[3];
 	char		subtarget[32];
 } bMinMaxConstraint;
diff --git a/source/blender/makesdna/DNA_ipo_types.h b/source/blender/makesdna/DNA_ipo_types.h
index 8fe8b3bcf70..201ea8994ca 100644
--- a/source/blender/makesdna/DNA_ipo_types.h
+++ b/source/blender/makesdna/DNA_ipo_types.h
@@ -30,7 +30,7 @@
  *  \deprecated
  *   The contents of this file are now officially depreceated. They were used for the 'old' animation system,
  *   which has (as of 2.50) been replaced with a completely new system by Joshua Leung (aligorith). All defines, 
- *   etc. are only still maintained to provide backwards compatability for old files.
+ *   etc. are only still maintained to provide backwards compatibility for old files.
  */
  
 #ifndef DNA_IPO_TYPES_H