diff --git a/debian/rules b/debian/rules
index 2353afe8..78b19d53 100755
--- a/debian/rules
+++ b/debian/rules
@@ -128,6 +128,9 @@ ifneq (,$(findstring $(DEB_HOST_ARCH),armel))
   STAGE2_CFLAGS_EXTRA += -march=armv5t
   STAGE2_CXXFLAGS_EXTRA += -march=armv5t
   STAGE1_AND_STAGE2_CMAKE_EXTRA += -DLLVM_HOST_TRIPLE=arm-linux-gnueabi
+  # 12 still failing to build, disable the compiler_rt builtins
+  # See http://lists.llvm.org/pipermail/llvm-dev/2016-May/099761.html
+  STAGE1_AND_STAGE2_CMAKE_EXTRA += -DCOMPILER_RT_BUILD_BUILTINS=OFF
   STAGE1_AND_STAGE2_CMAKE_EXTRA += -DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON
 endif