message: updated to TaskIdRepr to include Darwin
diff: #ifndef TASKIDREPR_HPP
  #define TASKIDREPR_HPP
  -#if defined(TGT_OS_TYPE_LINUX)
  +#if defined(TGT_OS_TYPE_LINUX) || defined(TGT_OS_TYPE_DARWIN)
  extern "C" {
  #include <pthread.h>
  };
  @@ -17,7 +17,7 @@ extern "C" {
  namespace Os {
  #if defined(TGT_OS_TYPE_VXWORKS)
  typedef int TaskIdRepr;
  -#elif defined(TGT_OS_TYPE_LINUX)
  +#elif defined(TGT_OS_TYPE_LINUX) || defined(TGT_OS_TYPE_DARWIN)
  typedef pthread_t TaskIdRepr;
  #endif
  }
  