CHECK: spaces preferred around that '*' (ctx:WxO)
CHECK: spaces required around that ':' (ctx:VxV)
ERROR: spaces required around that ':' (ctx:OxW)
ERROR: trailing statements should be on next line
WARNING: Argument 'lock' is not used in function-like macro
WARNING: Argument 'lockname' is not used in function-like macro
WARNING: do not add new typedefs