Ceph » CephFS

I got this, building master today against libfuse v3.9.1:

[ 61%] Building CXX object src/librbd/CMakeFiles/rbd_internal.dir/operation/SnapshotRollbackRequest.cc.o
/home/jlayton/git/ceph/src/client/fuse_ll.cc:1057:9: error: invalid conversion from ‘void (*)(fuse_req_t, fuse_ino_t, unsigned int, void*, fuse_file_info*, unsigned int, const void*, size_t, size_t)’ {aka ‘void (*)(fuse_req*, long unsigned int, unsigned int, void*, fuse_file_info*, unsigned int, const void*, long unsigned int, long unsigned int)’} to ‘void (*)(fuse_req_t, fuse_ino_t, int, void*, fuse_file_info*, unsigned int, const void*, size_t, size_t)’ {aka ‘void (*)(fuse_req*, long unsigned int, int, void*, fuse_file_info*, unsigned int, const void*, long unsigned int, long unsigned int)’} [-fpermissive]
 1057 |  ioctl: fuse_ll_ioctl,
      |         ^~~~~~~~~~~~~
      |         |
      |         void (*)(fuse_req_t, fuse_ino_t, unsigned int, void*, fuse_file_info*, unsigned int, const void*, size_t, size_t) {aka void (*)(fuse_req*, long unsigned int, unsigned int, void*, fuse_file_info*, unsigned int, const void*, long unsigned int, long unsigned int)}
make[2]: *** [src/CMakeFiles/ceph-fuse.dir/build.make:96: src/CMakeFiles/ceph-fuse.dir/client/fuse_ll.cc.o] Error 1

The problem is that FUSE_USE_VERSION is too low, so this isn't currently handled properly with later libfuse versions.