diff --git a/sdk/include/crt/stdlib.h b/sdk/include/crt/stdlib.h
index a9fdbf604e7..a1a35636ad2 100644
--- a/sdk/include/crt/stdlib.h
+++ b/sdk/include/crt/stdlib.h
@@ -1193,7 +1193,7 @@ extern "C" {
   _putenv(
     _In_z_ const char *_EnvString);
 
-#if !defined(__GNUC__) && !defined(__clang__)
+#if !defined(__clang__)
 
   _Check_return_
   unsigned int
@@ -1229,7 +1229,7 @@ extern "C" {
     _In_ int _Shift);
 #endif
 
-#endif /* !defined(__GNUC__) && !defined(__clang__) */
+#endif /* !defined(__clang__) */
 
   _CRTIMP
   void
diff --git a/sdk/lib/crt/stdlib/rot.c b/sdk/lib/crt/stdlib/rot.c
index cb82df097fd..efd2359aaa1 100644
--- a/sdk/lib/crt/stdlib/rot.c
+++ b/sdk/lib/crt/stdlib/rot.c
@@ -31,6 +31,11 @@ unsigned long _lrotr(unsigned long value, int shift) __asm__("_lrotr");
 unsigned int _rotl( unsigned int value, int shift ) __asm__("_rotl");
 unsigned long _lrotl( unsigned long value, int shift ) __asm__("_lrotl");
 #  endif
+#else
+unsigned int _rotr( unsigned int value, int shift );
+unsigned long _lrotr(unsigned long value, int shift);
+unsigned int _rotl( unsigned int value, int shift );
+unsigned long _lrotl( unsigned long value, int shift );
 #endif
 /*
  * @implemented