Pathnames between #include files that are intended to be used within application code should not depend on the paths to the subdirectories being known to the compiler because this will not always be the case when an end-user includes your headers.

Includes of files in the local hierarchy must not use <...> please stick with "..."

src/BulletCollision/BroadphaseCollision/btAxisSweep3.h

@@ -19,8 +19,8 @@
 #ifndef AXIS_SWEEP_3_H
 #define AXIS_SWEEP_3_H
 
-#include "LinearMath/btPoint3.h"
-#include "LinearMath/btVector3.h"
+#include "../../LinearMath/btPoint3.h"
+#include "../../LinearMath/btVector3.h"
 #include "btOverlappingPairCache.h"
 #include "btBroadphaseProxy.h"
 

src/BulletCollision/BroadphaseCollision/btBroadphaseInterface.h

@@ -21,7 +21,7 @@ subject to the following restrictions:
 struct btDispatcherInfo;
 class btDispatcher;
 struct btBroadphaseProxy;
-#include "LinearMath/btVector3.h"
+#include "../../LinearMath/btVector3.h"
 
 ///BroadphaseInterface for aabb-overlapping object pairs
 class btBroadphaseInterface

src/BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h

@@ -16,7 +16,7 @@ subject to the following restrictions:
 #ifndef COLLISION_ALGORITHM_H
 #define COLLISION_ALGORITHM_H
 
-#include "LinearMath/btScalar.h"
+#include "../../LinearMath/btScalar.h"
 
 struct btBroadphaseProxy;
 class btDispatcher;

src/BulletCollision/BroadphaseCollision/btDispatcher.h

@@ -16,7 +16,7 @@ subject to the following restrictions:
 #ifndef _DISPATCHER_H
 #define _DISPATCHER_H
 
-#include "LinearMath/btScalar.h"
+#include "../../LinearMath/btScalar.h"
 
 class btCollisionAlgorithm;
 struct btBroadphaseProxy;

src/BulletCollision/BroadphaseCollision/btOverlappingPairCache.h

@@ -20,7 +20,7 @@ subject to the following restrictions:
 
 #include "btBroadphaseInterface.h"
 #include "btBroadphaseProxy.h"
-#include "LinearMath/btPoint3.h"
+#include "../../LinearMath/btPoint3.h"
 #include <set>