--- src/bin/run_pcm.cpp.orig	2019-10-24 12:38:26 UTC
+++ src/bin/run_pcm.cpp
@@ -31,6 +31,7 @@
 #include <utility>
 #include <vector>
 
+#include <sys/types.h>
 #include "Config.hpp"
 
 #include <Eigen/Core>
