Where shorter, use canonicalized paths to systems headers.
fcilkplus
-C ObjC C++ ObjC++ LTO Report Var(flag_enable_cilkplus) Init(0)
+C ObjC C++ ObjC++ LTO Report Var(flag_cilkplus) Init(0)
Enable Cilk Plus
fcond-mismatch
std=c++11
C++ ObjC++
-Conform to the ISO 2011 C++ standard (experimental and incomplete support)
+Conform to the ISO 2011 C++ standard
std=c++0x
-C++ ObjC++ Alias(std=c++11)
+C++ ObjC++ Alias(std=c++11) Undocumented
Deprecated in favor of -std=c++11
std=c++1y
C++ ObjC++
-Conform to the ISO 201y(7?) C++ draft standard (experimental and incomplete support)
+Conform to the ISO 2014(?) C++ draft standard (experimental and incomplete support)
+
+std=c++14
+C++ ObjC++ Alias(std=c++1y) Undocumented
std=c11
C ObjC