diff --git a/core/io/logger.cpp b/core/io/logger.cpp
index 48aebeda3d6..ad0cc810232 100644
--- a/core/io/logger.cpp
+++ b/core/io/logger.cpp
@@ -34,17 +34,6 @@
 #include "core/os/os.h"
 #include "core/print_string.h"
 
-// va_copy was defined in the C99, but not in C++ standards before C++11.
-// When you compile C++ without --std=c++<XX> option, compilers still define
-// va_copy, otherwise you have to use the internal version (__va_copy).
-#if !defined(va_copy)
-#if defined(__GNUC__)
-#define va_copy(d, s) __va_copy((d), (s))
-#else
-#define va_copy(d, s) ((d) = (s))
-#endif
-#endif
-
 #if defined(MINGW_ENABLED) || defined(_MSC_VER)
 #define sprintf sprintf_s
 #endif
diff --git a/core/variant.h b/core/variant.h
index a832f7ccf8d..1ae09ad82f0 100644
--- a/core/variant.h
+++ b/core/variant.h
@@ -67,13 +67,6 @@ typedef Vector<Vector2> PackedVector2Array;
 typedef Vector<Vector3> PackedVector3Array;
 typedef Vector<Color> PackedColorArray;
 
-// Temporary workaround until c++11 alignas()
-#ifdef __GNUC__
-#define GCC_ALIGNED_8 __attribute__((aligned(8)))
-#else
-#define GCC_ALIGNED_8
-#endif
-
 class Variant {
 public:
 	// If this changes the table in variant_op must be updated
@@ -211,7 +204,7 @@ private:
 		PackedArrayRefBase *packed_array;
 		void *_ptr; //generic pointer
 		uint8_t _mem[sizeof(ObjData) > (sizeof(real_t) * 4) ? sizeof(ObjData) : (sizeof(real_t) * 4)];
-	} _data GCC_ALIGNED_8;
+	} _data alignas(8);
 
 	void reference(const Variant &p_variant);
 	void clear();
diff --git a/modules/mono/utils/string_utils.cpp b/modules/mono/utils/string_utils.cpp
index 907811355fe..67b264d8034 100644
--- a/modules/mono/utils/string_utils.cpp
+++ b/modules/mono/utils/string_utils.cpp
@@ -196,16 +196,6 @@ String str_format(const char *p_format, ...) {
 
 	return res;
 }
-// va_copy was defined in the C99, but not in C++ standards before C++11.
-// When you compile C++ without --std=c++<XX> option, compilers still define
-// va_copy, otherwise you have to use the internal version (__va_copy).
-#if !defined(va_copy)
-#if defined(__GNUC__)
-#define va_copy(d, s) __va_copy((d), (s))
-#else
-#define va_copy(d, s) ((d) = (s))
-#endif
-#endif
 
 #if defined(MINGW_ENABLED) || defined(_MSC_VER) && _MSC_VER < 1900
 #define gd_vsnprintf(m_buffer, m_count, m_format, m_args_copy) vsnprintf_s(m_buffer, m_count, _TRUNCATE, m_format, m_args_copy)