-U<macro> Undefine <macro>
Wabi
-C ObjC C++ ObjC++ Var(warn_abi) Warning
+C ObjC C++ ObjC++ LTO Var(warn_abi) Warning
Warn about things that will change when compiling with an ABI-compliant compiler
Wpsabi
-C ObjC C++ ObjC++ Var(warn_psabi) Init(1) Undocumented
+C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Undocumented
Waddress
C ObjC C++ ObjC++ Var(warn_address) Warning
Warn about PCH files that are found but not used
Wjump-misses-init
-C Objc Var(warn_jump_misses_init) Init(-1) Warning
+C ObjC Var(warn_jump_misses_init) Init(-1) Warning
Warn when a jump misses a variable initialization
Wlogical-op