/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/ is in libbullet-dev 2.87+dfsg-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/b3GpuBroadphaseInterface.h
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/b3GpuGridBroadphase.h
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/b3GpuParallelLinearBvh.h
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/b3GpuParallelLinearBvhBroadphase.h
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/b3GpuSapBroadphase.h
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/b3SapAabb.h
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/kernels/
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/kernels/gridBroadphaseKernels.h
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/kernels/parallelLinearBvhKernels.h
/usr/include/bullet/Bullet3OpenCL/BroadphaseCollision/kernels/sapKernels.h