wolfssl/wolfcrypt/types.h: dial in the __static_assert() gating+definitions, and add static_assert2().

Author: douzzer

wolfssl/wolfcrypt/types.h

@@ -1696,20 +1696,32 @@ typedef struct w64wrapper {
 
     #define WC_CPP_CAT_(a, b) a ## b
     #define WC_CPP_CAT(a, b) WC_CPP_CAT_(a, b)
-    #ifndef static_assert
-        #if !defined(__cplusplus) && !defined(__STRICT_ANSI__) && \
-                !defined(WOLF_C89) && ((defined(__GNUC__) &&      \
-                __GNUC__ >= 5) || defined(__clang__))
-            #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
-            #define static_assert(expr, ...) \
-                __static_assert(expr, ##__VA_ARGS__, #expr)
-        #elif defined(__STRICT_ANSI__) || defined(WOLF_C89)
-            #define static_assert(expr) \
-                struct WC_CPP_CAT(dummy_struct_, __LINE__)
+    #if defined(__cplusplus) && (__cplusplus >= 201103L)
+        #ifndef static_assert2
+            #define static_assert2 static_assert
+        #endif
+    #elif !defined(static_assert)
+        #if !defined(__cplusplus) &&                \
+                !defined(__STRICT_ANSI__) &&        \
+                !defined(WOLF_C89) &&               \
+                defined(__STDC_VERSION__) &&        \
+                (__STDC_VERSION__ >= 201112L) &&    \
+                ((defined(__GNUC__) &&              \
+                  (__GNUC__ >= 5)) ||               \
+                 defined(__clang__))
+            #define static_assert(expr) _Static_assert(expr, #expr)
+            #ifndef static_assert2
+                #define static_assert2(expr, msg) _Static_assert(expr, msg)
+            #endif
         #else
-            #define static_assert(...) \
+            #define static_assert(expr) \
                 struct WC_CPP_CAT(wc_dummy_struct_L, __LINE__)
+            #ifndef static_assert2
+                #define static_assert2(expr, msg) static_assert(expr)
+            #endif
         #endif
+    #elif !defined(static_assert2)
+         #define static_assert2(expr, msg) static_assert(expr)
     #endif
 
     #ifndef SAVE_VECTOR_REGISTERS