diff --git a/c/build_clang.sh b/c/build_clang.sh
new file mode 100755
index 0000000..6e5842e
--- /dev/null
+++ b/c/build_clang.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -eu
+
+export CC=clang CXX=clang++
+cd $(dirname $0)
+BUILDDIR=${BUILD_ROOT:-build}/$(basename $(pwd))-$(echo $(basename $0) | sed 's/build_*\(.*\).sh/\1/')-$(uname)-$(uname -m)
+cmake -DCMAKE_BUILD_TYPE=Release -B $BUILDDIR .
+cmake --build $BUILDDIR -j
+cp $BUILDDIR/rosettaboy-c ./rosettaboy-clang