diff --git a/CMakeLists.txt b/CMakeLists.txt
index 450cc80d0..8e70b76a1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -190,6 +190,7 @@ ENDIF (INTERNAL_UPDATE_SERIALIZATION_STRUCTURES)
 
 IF (USE_DOUBLE_PRECISION)
 ADD_DEFINITIONS( -DBT_USE_DOUBLE_PRECISION)
+SET( BULLET_DOUBLE_DEF "-DBT_USE_DOUBLE_PRECISION")
 ENDIF (USE_DOUBLE_PRECISION)
 
 IF(USE_GRAPHICAL_BENCHMARK)
diff --git a/bullet.pc.cmake b/bullet.pc.cmake
index 0ce91845d..c5649d58d 100644
--- a/bullet.pc.cmake
+++ b/bullet.pc.cmake
@@ -3,4 +3,4 @@ Description: Bullet Continuous Collision Detection and Physics Library
 Requires:
 Version: @BULLET_VERSION@
 Libs: -L@LIB_DESTINATION@ -lBulletSoftBody -lBulletDynamics -lBulletCollision -lLinearMath
-Cflags: -I@INCLUDE_INSTALL_DIR@
+Cflags: @BULLET_DOUBLE_DEF@ -I@INCLUDE_INSTALL_DIR@
diff --git a/src/BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h b/src/BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h
index e4d4386ae..c269ef27b 100644
--- a/src/BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h
+++ b/src/BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h
@@ -39,7 +39,7 @@ public:
 
 	BT_DECLARE_ALIGNED_ALLOCATOR();
 
-	btBvhTriangleMeshShape() : btTriangleMeshShape(0),m_bvh(0),m_triangleInfoMap(0),m_ownsBvh(false) {m_shapeType = TRIANGLE_MESH_SHAPE_PROXYTYPE;};
+	
 	btBvhTriangleMeshShape(btStridingMeshInterface* meshInterface, bool useQuantizedAabbCompression, bool buildBvh = true);
 
 	///optionally pass in a larger bvh aabb, used for quantization. This allows for deformations within this aabb
diff --git a/src/BulletCollision/CollisionShapes/btMultimaterialTriangleMeshShape.h b/src/BulletCollision/CollisionShapes/btMultimaterialTriangleMeshShape.h
index d42ba1143..96b2ad95b 100644
--- a/src/BulletCollision/CollisionShapes/btMultimaterialTriangleMeshShape.h
+++ b/src/BulletCollision/CollisionShapes/btMultimaterialTriangleMeshShape.h
@@ -31,7 +31,6 @@ public:
 
 	BT_DECLARE_ALIGNED_ALLOCATOR();
 
-    btMultimaterialTriangleMeshShape(): btBvhTriangleMeshShape() {m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;}
     btMultimaterialTriangleMeshShape(btStridingMeshInterface* meshInterface, bool useQuantizedAabbCompression, bool buildBvh = true):
         btBvhTriangleMeshShape(meshInterface, useQuantizedAabbCompression, buildBvh)
         {