Support for CodeWarrior for Palm OS 8

[nobody]

I just worked out a small patch that allows the Boost
random package to work with CodeWarrior for Palm OS 8.

The difficulty was that CW for Palm ships with a
stripped-down version of MSL that does not include
unistd.h.  In order to get Boost Random to compile,
I had to edit <boost/config/stdlib/msl.hpp>.

The change is as follows:

  #if defined(__MSL__) && (__MSL__ >= 0x5000)
  #  define BOOST_HAS_STDINT_H
32c32,34
< #  define BOOST_HAS_UNISTD_H
---
> #  if ! defined(__PALMOS_TRAPS__)
> #    define BOOST_HAS_UNISTD_H
> #  endif
     // boilerplate code:
  #  include <boost/config/posix_features.hpp>
  #endif

[jmaurer]

Logged In: YES 
user_id=53943

Incorporated into current CVS.
May break things, therefore not in 1.31 release branch.