include unistd.h

diff --git a/src/utils/console.cc b/src/utils/console.cc
index 387f39d..57ec6dd 100644 (file)
--- a/src/utils/console.cc
+++ b/src/utils/console.cc
@@ -8,6 +8,7 @@
 /** \file console.cc
  * Miscellaneous console utilities.
  */
+#include <unistd.h>
 
 #include <string>
 #include <fstream>