[boost] error in boost/config/platform/hpux.hpp (thread support)

From: Julien Delacroix (jdelacroix_at_[hidden])
Date: 2006-07-27 05:17:23

Here is the code that handle thread support in 
boost/config/platform/hpux.hpp : 

#if defined(__GNUC__) 
#  if (__GNUC__ < 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ < 3)) 
      // GNU C on HP-UX does not support threads (checked up to gcc 3.3) 
#     define BOOST_DISABLE_THREADS 
#  elif !defined(BOOST_DISABLE_THREADS) 
      // threads supported from gcc-3.3 onwards: 
#     define BOOST_HAS_THREADS 
#     define BOOST_HAS_PTHREADS 
#  endif 
#endif 

This code does not set BOOST_HAS_THREADS and BOOST_HAS_PTHREADS when 
compiling with aCC on HP-UX. 
This cause the boost::shared_ptr to be unsafe in a multithreaded 
environment . 
We fixed this problem by adding the following lines in user.hpp : 

// Enable threading support with aCC !! 
#ifdef _AMD_THREADS_ 
#  ifdef _AMD_UNIX_HPUX_ 
#    define BOOST_HAS_THREADS 
#    define BOOST_HAS_PTHREADS 
#  endif 
#endif 

But I suggest that in future release you use the following code in 
boost/config/platform/hpux.hpp 

#if defined(__GNUC__) 
#  if (__GNUC__ < 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ < 3)) 
      // GNU C on HP-UX does not support threads (checked up to gcc 3.3) 
#     define BOOST_DISABLE_THREADS 
#  endif 
#endif 

#if !defined(BOOST_DISABLE_THREADS) 
     // threads supported 
#   define BOOST_HAS_THREADS 
#   define BOOST_HAS_PTHREADS 
# endif 

Maybe it will be necessary to check aCC version and set 
BOOST_DISABLE_THREADS for old aCC version that do not have thread 
suport... 

Regards 

Julien