fix warnings

scripts/infer_run.sh

@@ -0,0 +1,10 @@
+# https://github.com/facebook/infer
+#
+# Install: 
+# VERSION=0.17.0; \
+# curl -sSL "https://github.com/facebook/infer/releases/download/v$VERSION/infer-linux64-v$VERSION.tar.xz" \
+# | sudo tar -C /opt -xJ && \
+# sudoln -s "/opt/infer-linux64-v$VERSION/bin/infer" /usr/local/bin/infer
+
+
+infer run -- make -j8