+# Check to make sure we have clang-format. Exit if we don't with an error message, but
+# don't *fail*.
+HAVE_CLANG_FORMAT=0
+command -v clang-format > /dev/null
+if [ $? != 0 ]; then
+ echo "Could not find command \"clang-format\". Checking C++ files will cause abort"
+else
+ clang-format --version
+ x=$(echo "" | clang-format 2>&1)
+ if [[ "$x" == "" ]]; then
+ HAVE_CLANG_FORMAT=1
+ else
+ echo "Output produced while formatting empty file (expected empty string):"
+ echo "$x"
+ echo "Could not find working \"clang-format\". Checking C++ files will cause abort"
+ fi
+fi
+