From 47b079afc91467a64937c24590bc6c9acb579f13 Mon Sep 17 00:00:00 2001
From: Augustin Cavalier <waddlesplash@gmail.com>
Date: Wed, 22 Aug 2018 00:32:30 -0400
Subject: [PATCH] Debug.h: Implement a real STATIC_ASSERT on non-GCC2.

---
 headers/os/support/Debug.h     | 22 ++++++++++++++--------
 headers/private/kernel/debug.h | 18 ++++++++++++------
 2 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/headers/os/support/Debug.h b/headers/os/support/Debug.h
index 9cc39fd8c9..cc701cab73 100644
--- a/headers/os/support/Debug.h
+++ b/headers/os/support/Debug.h
@@ -63,7 +63,7 @@ extern "C" {
 
 	#define ASSERT_WITH_MESSAGE(expr, msg) \
 								(!(expr) ? _debuggerAssert( __FILE__,__LINE__, msg) \
-										: (int)0)	
+										: (int)0)
 
 	#define TRESPASS()			DEBUGGER("Should not be here");
 
@@ -72,7 +72,7 @@ extern "C" {
 #else /* DEBUG == 0 */
 	#define SET_DEBUG_ENABLED(FLAG)			(void)0
 	#define	IS_DEBUG_ENABLED()				(void)0
-	
+
 	#define SERIAL_PRINT(ARGS)				(void)0
 	#define PRINT(ARGS)						(void)0
 	#define PRINT_OBJECT(OBJ)				(void)0
@@ -90,12 +90,18 @@ extern "C" {
 
 /* STATIC_ASSERT is a compile-time check that can be used to             */
 /* verify static expressions such as: STATIC_ASSERT(sizeof(int64) == 8); */
-#define STATIC_ASSERT(x)								\
-	do {												\
-		struct __staticAssertStruct__ {					\
-			char __static_assert_failed__[2*(x) - 1];	\
-		};												\
-	} while (false)
+#if __GNUC__ >= 5 && !defined(__cplusplus)
+#	define STATIC_ASSERT(x) _Static_assert(x, "static assert failed!")
+#elif defined(__cplusplus) && __cplusplus >= 201103L
+#	define STATIC_ASSERT(x) static_assert(x, "static assert failed!")
+#else
+#	define STATIC_ASSERT(x)								\
+		do {												\
+			struct __staticAssertStruct__ {					\
+				char __static_assert_failed__[2*(x) - 1];	\
+			};												\
+		} while (false)
+#endif
 
 
 #endif	/* _DEBUG_H */
diff --git a/headers/private/kernel/debug.h b/headers/private/kernel/debug.h
index 45332e4dbd..c8037ca8ee 100644
--- a/headers/private/kernel/debug.h
+++ b/headers/private/kernel/debug.h
@@ -69,12 +69,18 @@
 #	define ASSERT_PRINT(x, format, args...)	do { } while(0)
 #endif
 
-#define STATIC_ASSERT(x)								\
-	do {												\
-		struct __staticAssertStruct__ {					\
-			char __static_assert_failed__[2*(x) - 1];	\
-		};												\
-	} while (false)
+#if __GNUC__ >= 5 && !defined(__cplusplus)
+#	define STATIC_ASSERT(x) _Static_assert(x, "static assert failed!")
+#elif defined(__cplusplus) && __cplusplus >= 201103L
+#	define STATIC_ASSERT(x) static_assert(x, "static assert failed!")
+#else
+#	define STATIC_ASSERT(x)								\
+		do {												\
+			struct __staticAssertStruct__ {					\
+				char __static_assert_failed__[2*(x) - 1];	\
+			};												\
+		} while (false)
+#endif
 
 #if KDEBUG
 #	define KDEBUG_ONLY(x)				x