diff -up llvm-3.7.1.src/cmake/config-ix.cmake.s390 llvm-3.7.1.src/cmake/config-ix.cmake
--- llvm-3.7.1.src/cmake/config-ix.cmake.s390	2016-02-16 12:27:36.000000000 +0100
+++ llvm-3.7.1.src/cmake/config-ix.cmake	2016-02-16 12:27:52.000000000 +0100
@@ -356,6 +356,8 @@ elseif (LLVM_NATIVE_ARCH MATCHES "msp430
   set(LLVM_NATIVE_ARCH MSP430)
 elseif (LLVM_NATIVE_ARCH MATCHES "hexagon")
   set(LLVM_NATIVE_ARCH Hexagon)
+elseif (LLVM_NATIVE_ARCH MATCHES "s390")
+  set(LLVM_NATIVE_ARCH SystemZ)
 elseif (LLVM_NATIVE_ARCH MATCHES "s390x")
   set(LLVM_NATIVE_ARCH SystemZ)
 elseif (LLVM_NATIVE_ARCH MATCHES "wasm32")