Added *nix identification macros to Boost.Config; BOOST_NIX, BOOST_GENETIC_NIX,

BOOST_TRADEMARK_NIX and BOOST_FUNCTIONAL_NIX.



[SVN r66804]

include/boost/config/stdlib/libstdcpp3.hpp

@@ -54,11 +54,6 @@
 #  define BOOST_HAS_THREADS
 #endif
 
-#if !defined(CYGWIN)
-#  include <unistd.h>
-#  define BOOST_HAS_FENV_H
-#endif
-
 #if !defined(_GLIBCPP_USE_LONG_LONG) \
     && !defined(_GLIBCXX_USE_LONG_LONG)\
     && defined(BOOST_HAS_LONG_LONG)
@@ -67,6 +62,10 @@
 #  undef BOOST_HAS_LONG_LONG
 #endif
 
+#if !defined(CYGWIN) 
+#  include <unistd.h>
+#endif
+
 #if defined(__GLIBCXX__) || (defined(__GLIBCPP__) && __GLIBCPP__>=20020514) // GCC >= 3.1.0
 #  define BOOST_STD_EXTENSION_NAMESPACE __gnu_cxx
 #  define BOOST_HAS_SLIST

include/boost/config/stdlib/sgi.hpp

@@ -40,11 +40,8 @@
 #  define BOOST_NO_STRINGSTREAM
 #endif
 
-#if !defined(CYGWIN) && (defined(unix) || defined(__unix) || defined(__unix__))
+#if !defined(CYGWIN)
 #  include <unistd.h>
-#  if defined(_POSIX_VERSION) || defined(_XOPEN_VERSION)
-#     define BOOST_HAS_FENV_H
-#  endif
 #endif
 
 

include/boost/config/stdlib/stlport.hpp

@@ -16,11 +16,8 @@
 #  endif
 #endif
 
-#if !defined(CYGWIN) && (defined(unix) || defined(__unix) || defined(__unix__))
+#if !defined(CYGWIN) 
 #  include <unistd.h>
-#  if defined(_POSIX_VERSION) || defined(_XOPEN_VERSION)
-#     define BOOST_HAS_FENV_H
-#  endif
 #endif
 
 //

include/boost/config/stdlib/vacpp.hpp

@@ -12,11 +12,8 @@
 #define BOOST_HAS_MACRO_USE_FACET
 #define BOOST_NO_STD_MESSAGES
 
-#if !defined(CYGWIN) && (defined(unix) || defined(__unix) || defined(__unix__))
+#if !defined(CYGWIN)
 #  include <unistd.h>
-#  if defined(_POSIX_VERSION) || defined(_XOPEN_VERSION)
-#     define BOOST_HAS_FENV_H
-#  endif
 #endif
 
 //  C++0x headers not yet implemented