COMP: Provide C++11 feature testing during config

Test compiler feature sets early so that required features
are validated before long compilation process is started.

Author: hjmjohnson

Diff for: src/lib_json/CMakeLists.txt

@@ -83,6 +83,56 @@ if(APPLE)
     set_target_properties( jsoncpp_lib PROPERTIES INSTALL_RPATH "@loader_path/." )
 endif()
 
+# Specify compiler features required when compiling a given target.
+# See https://cmake.org/cmake/help/v3.1/prop_gbl/CMAKE_CXX_KNOWN_FEATURES.html#prop_gbl:CMAKE_CXX_KNOWN_FEATURES
+# for complete list of features available
+target_compile_features(jsoncpp_lib PUBLIC
+        cxx_std_11 # Compiler mode is aware of C++ 11.
+        #MSVC 1900 cxx_alignas # Alignment control alignas, as defined in N2341.
+        #MSVC 1900 cxx_alignof # Alignment control alignof, as defined in N2341.
+        #MSVC 1900 cxx_attributes # Generic attributes, as defined in N2761.
+        cxx_auto_type # Automatic type deduction, as defined in N1984.
+        #MSVC 1900 cxx_constexpr # Constant expressions, as defined in N2235.
+        cxx_decltype # Decltype, as defined in N2343.
+        cxx_default_function_template_args # Default template arguments for function templates, as defined in DR226
+        cxx_defaulted_functions # Defaulted functions, as defined in N2346.
+        #MSVC 1900 cxx_defaulted_move_initializers # Defaulted move initializers, as defined in N3053.
+        cxx_delegating_constructors # Delegating constructors, as defined in N1986.
+        #MSVC 1900 cxx_deleted_functions # Deleted functions, as defined in N2346.
+        cxx_enum_forward_declarations # Enum forward declarations, as defined in N2764.
+        cxx_explicit_conversions # Explicit conversion operators, as defined in N2437.
+        cxx_extended_friend_declarations # Extended friend declarations, as defined in N1791.
+        cxx_extern_templates # Extern templates, as defined in N1987.
+        cxx_final # Override control final keyword, as defined in N2928, N3206 and N3272.
+        #MSVC 1900 cxx_func_identifier # Predefined __func__ identifier, as defined in N2340.
+        #MSVC 1900 cxx_generalized_initializers # Initializer lists, as defined in N2672.
+        #MSVC 1900 cxx_inheriting_constructors # Inheriting constructors, as defined in N2540.
+        #MSVC 1900 cxx_inline_namespaces # Inline namespaces, as defined in N2535.
+        cxx_lambdas # Lambda functions, as defined in N2927.
+        #MSVC 1900 cxx_local_type_template_args # Local and unnamed types as template arguments, as defined in N2657.
+        cxx_long_long_type # long long type, as defined in N1811.
+        #MSVC 1900 cxx_noexcept # Exception specifications, as defined in N3050.
+        #MSVC 1900 cxx_nonstatic_member_init # Non-static data member initialization, as defined in N2756.
+        cxx_nullptr # Null pointer, as defined in N2431.
+        cxx_override # Override control override keyword, as defined in N2928, N3206 and N3272.
+        cxx_range_for # Range-based for, as defined in N2930.
+        cxx_raw_string_literals # Raw string literals, as defined in N2442.
+        #MSVC 1900 cxx_reference_qualified_functions # Reference qualified functions, as defined in N2439.
+        cxx_right_angle_brackets # Right angle bracket parsing, as defined in N1757.
+        cxx_rvalue_references # R-value references, as defined in N2118.
+        #MSVC 1900 cxx_sizeof_member # Size of non-static data members, as defined in N2253.
+        cxx_static_assert # Static assert, as defined in N1720.
+        cxx_strong_enums # Strongly typed enums, as defined in N2347.
+        #MSVC 1900 cxx_thread_local # Thread-local variables, as defined in N2659.
+        cxx_trailing_return_types # Automatic function return type, as defined in N2541.
+        #MSVC 1900 cxx_unicode_literals # Unicode string literals, as defined in N2442.
+        cxx_uniform_initialization # Uniform initialization, as defined in N2640.
+        #MSVC 1900 cxx_unrestricted_unions # Unrestricted unions, as defined in N2544.
+        #MSVC 1900 cxx_user_literals # User-defined literals, as defined in N2765.
+        cxx_variadic_macros # Variadic macros, as defined in N1653.
+        cxx_variadic_templates # Variadic templates, as defined in N2242.
+)
+
 install( TARGETS jsoncpp_lib ${INSTALL_EXPORT}
           RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
           LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}