[boost] [interprocess][1.47] Mismatched PP directives?

Subject: [boost] [interprocess][1.47] Mismatched PP directives?
From: John Maddock (boost.regex_at_[hidden])
Date: 2011-07-12 11:58:30

While building the PDF docs for 1.47 I noticed a bunch of Doxygen warnings 
about mismatched PP directives in the Boost.Interprocess source - warning 
messages below - should I/we be concerned, or this just a Doxygenism?

Thanks, John.

M:/data/boost/branches/release/boost/interprocess/permissions.hpp:55: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/permissions.hpp:68: 
warning: Found an #else without a preceding #if.
M:/data/boost/branches/release/boost/interprocess/permissions.hpp:70: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/permissions.hpp:96: 
warning: Found an #else without a preceding #if.
M:/data/boost/branches/release/boost/interprocess/permissions.hpp:98: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/permissions.hpp:109: 
warning: Found an #else without a preceding #if.
M:/data/boost/branches/release/boost/interprocess/permissions.hpp:111: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/permissions.hpp:131: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/containers/containers_fwd.hpp:40: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/smart_ptr/intrusive_ptr.hpp:294: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/smart_ptr/scoped_ptr.hpp:168: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/smart_ptr/shared_ptr.hpp:388: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/sync/interprocess_barrier.hpp:115: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/sync/interprocess_mutex.hpp:148: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/sync/interprocess_recursive_mutex.hpp:158: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/sync/interprocess_semaphore.hpp:119: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/sync/named_mutex.hpp:235: 
warning: More #endif's than #if's found.
M:/data/boost/branches/release/boost/interprocess/sync/named_semaphore.hpp:242: 
warning: More #endif's than #if's found.