diff --git a/sdk/lib/crt/crt.cmake b/sdk/lib/crt/crt.cmake
index a6a7e5dc137..144a6000976 100644
--- a/sdk/lib/crt/crt.cmake
+++ b/sdk/lib/crt/crt.cmake
@@ -441,6 +441,10 @@ if(ARCH STREQUAL "i386")
         list(APPEND CRT_ASM_SOURCE
             except/i386/cpp.s)
     endif()
+    if(USE_CLANG_CL)
+        list(APPEND CRT_ASM_SOURCE
+            stdlib/clang-alias.s)
+    endif()
 elseif(ARCH STREQUAL "amd64")
     list(APPEND CRT_ASM_SOURCE
         except/amd64/seh.s
diff --git a/sdk/lib/crt/stdlib/clang-alias.s b/sdk/lib/crt/stdlib/clang-alias.s
new file mode 100644
index 00000000000..56550073af8
--- /dev/null
+++ b/sdk/lib/crt/stdlib/clang-alias.s
@@ -0,0 +1,22 @@
+#include <asm.inc>
+
+.code
+
+MACRO(DEFINE_ALIAS, alias, orig, type)
+EXTERN &orig:&type
+ALIAS <&alias> = <&orig>
+ENDM
+
+#ifdef _M_X64
+DEFINE_ALIAS _rotl, __function_rotl
+DEFINE_ALIAS _rotr, __function_rotr
+DEFINE_ALIAS _lrotl, __function_lrotl
+DEFINE_ALIAS _lrotr, __function_lrotr
+#else
+DEFINE_ALIAS __rotl, ___function_rotl
+DEFINE_ALIAS __rotr, ___function_rotr
+DEFINE_ALIAS __lrotl, ___function_lrotl
+DEFINE_ALIAS __lrotr, ___function_lrotr
+#endif
+
+END
diff --git a/sdk/lib/crt/stdlib/rot.c b/sdk/lib/crt/stdlib/rot.c
index 7637a5e9b6d..3c4b613a3a6 100644
--- a/sdk/lib/crt/stdlib/rot.c
+++ b/sdk/lib/crt/stdlib/rot.c
@@ -10,11 +10,18 @@
 
 #include <stdlib.h>
 
-#ifdef _MSC_VER
+#ifdef __clang__
+#define _rotl __function_rotl
+#define _rotr __function_rotr
+#define _lrotl __function_lrotl
+#define _lrotr __function_lrotr
+#elif defined(_MSC_VER)
 #pragma function(_rotr, _rotl, _rotr, _lrotl, _lrotr)
 #endif
 
 unsigned int _rotr( unsigned int value, int shift );
+unsigned long _lrotr(unsigned long value, int shift);
+
 /*
  * @implemented
  */
@@ -43,7 +50,6 @@ unsigned int _rotr( unsigned int value, int shift )
 	return (value >> shift) | (value <<  (max_bits-shift));
 }
 
-
 /*
  * @implemented
  */