pathscale.hpp in passenger-5.3.4

- old
+ new

@@ -10,11 +10,16 @@
 
 #ifndef BOOST_COMPILER
 #  define BOOST_COMPILER "PathScale EKOPath C++ Compiler version " __PATHSCALE__
 #endif
 
-#if __PATHCC__ >= 4
+#if __PATHCC__ >= 6 
+// PathCC is based on clang, and supports the __has_*() builtins used 
+// to detect features in clang.hpp. Since the clang toolset is much 
+// better maintained, it is more convenient to reuse its definitions. 
+#  include "boost/config/compiler/clang.hpp"
+#elif __PATHCC__ >= 4 
 #  define BOOST_MSVC6_MEMBER_TEMPLATES
 #  define BOOST_HAS_UNISTD_H
 #  define BOOST_HAS_STDINT_H
 #  define BOOST_HAS_SIGACTION
 #  define BOOST_HAS_SCHED_YIELD
@@ -110,7 +115,18 @@
 #if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
 #  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
 #endif
 #if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
 #  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
 #endif
 #endif