Upgraded to Bullet 2.74. The upgrade introduced a few bugs, which need to be fixed before Blender 2.49.

In particular, the Bullet vehicle seems broken, and some soft-body demos don't work.
No new features or benefits are added yet, but a few improvements are planned before Blender 2.49 release.

Please update the build systems, and add those 3 files:
extern/bullet2/src/BulletCollision/CollisionDispatch/btActivatingCollisionAlgorithm.cpp
extern/bullet2/src/BulletCollision/CollisionDispatch/btGhostObject.cpp
extern/bullet2/src/BulletCollision/CollisionShapes/btConvexPointCloudShape.cpp

I'll watch the Blender mailing list, in case this commit causes some issues.

1 files changed, 4 insertions, 4 deletions

diff --git a/extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleIndexVertexArray.h b/extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleIndexVertexArray.h
index e546675f802..eb79ff5e47d 100644
--- a/extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleIndexVertexArray.h
+++ b/extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleIndexVertexArray.h
@@ -52,9 +52,9 @@ ATTRIBUTE_ALIGNED16( class) btTriangleIndexVertexArray : public btStridingMeshIn
 protected:
 	IndexedMeshArray	m_indexedMeshes;
 	int m_pad[2];
-	int m_hasAabb; // using int instead of bool to maintain alignment
-	btVector3 m_aabbMin;
-	btVector3 m_aabbMax;
+	mutable int m_hasAabb; // using int instead of bool to maintain alignment
+	mutable btVector3 m_aabbMin;
+	mutable btVector3 m_aabbMax;
 
 public:
 
@@ -106,7 +106,7 @@ public:
 	virtual void	preallocateIndices(int numindices){(void) numindices;}
 
 	virtual bool	hasPremadeAabb() const;
-	virtual void	setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax );
+	virtual void	setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax ) const;
 	virtual void	getPremadeAabb(btVector3* aabbMin, btVector3* aabbMax ) const;
 
 }