Diff of /src/utils/ptmutex.cpp [ab3206] .. [82922b]

  Switch to side-by-side view 

--- a/src/utils/ptmutex.cpp
+++ b/src/utils/ptmutex.cpp
@@ -25,7 +25,6 @@
 
 #include <stdio.h>
 #include <stdlib.h>
-#include <unistd.h>
 
 #include <string>
 using namespace std;