Added #include <unistd.h> for nice().

diff --git a/mlp.cc b/mlp.cc
index 758b624..4803259 100644 (file)
--- a/mlp.cc
+++ b/mlp.cc
@@ -56,6 +56,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 using namespace std;