diff --git a/source/build/include/build.h b/source/build/include/build.h
index d86f7e9e6..74c7ec3d9 100644
--- a/source/build/include/build.h
+++ b/source/build/include/build.h
@@ -15,11 +15,8 @@
 
 static_assert('\xff' == 255, "Char must be unsigned!");
 
-#if !defined __cplusplus || (__cplusplus < 201103L && !defined _MSC_VER)
-# error C++11 or greater is required.
-#endif
-
 #include "compat.h"
+#include "printf.h"
 #include "palette.h"
 #include "binaryangle.h"
 
diff --git a/source/build/include/compat.h b/source/build/include/compat.h
index 6d1a3803c..930315c4f 100644
--- a/source/build/include/compat.h
+++ b/source/build/include/compat.h
@@ -14,15 +14,6 @@
 
 ////////// Language and compiler feature polyfills //////////
 
-# define EXTERNC
-
-#if defined __GNUC__ || defined __clang__
-# define ATTRIBUTE(attrlist) __attribute__(attrlist)
-#else
-# define ATTRIBUTE(attrlist)
-#endif
-
-
 #  define fallthrough__ [[fallthrough]]
 
 ////////// Architecture detection //////////