src/dvr/dvr_vfsmgr.c: In function 'dvr_disk_space_cleanup':
src/dvr/dvr_vfsmgr.c:37:20: error: unknown type name 'fsid_t'
 #define tvh_fsid_t fsid_t
                    ^
src/dvr/dvr_vfsmgr.c:66:3: note: in expansion of macro 'tvh_fsid_t'
   tvh_fsid_t filesystemId;
   ^
src/dvr/dvr_vfsmgr.c:76:17: error: incompatible types when assigning to type 'int' from type '__fsid_t'
   filesystemId  = diskdata.f_fsid;
                 ^
src/dvr/dvr_vfsmgr.c:125:48: error: invalid operands to binary != (have '__fsid_t' and 'int')
       if (filesystemId == 0 || diskdata.f_fsid != filesystemId)
                                                ^
make: *** [/home/ben/Desktop/android/tvheadend/build.linux/src/dvr/dvr_vfsmgr.o] Error 1

I Changed
-#define tvh_fsid_t fsid_t
+#define tvh_fsid_t __fsid_t
 and then got
src/dvr/dvr_vfsmgr.c: In function 'dvr_disk_space_cleanup':
src/dvr/dvr_vfsmgr.c:125:24: error: invalid operands to binary == (have '__fsid_t' and 'int')
       if (filesystemId == 0 || diskdata.f_fsid != filesystemId)
                        ^
src/dvr/dvr_vfsmgr.c:125:48: error: invalid operands to binary != (have '__fsid_t' and '__fsid_t')
       if (filesystemId == 0 || diskdata.f_fsid != filesystemId)
                                                ^
make: *** [/home/ben/Desktop/android/tvheadend/build.linux/src/dvr/dvr_vfsmgr.o] Error 1