Add missing #include.

diff --git a/core/main.c b/core/main.c
index ff5728d4053cbfdad5d7854f527460d76743fef1..2797e8e2ac56a1066ade13cb6b89566d338642ba 100644 (file)
--- a/core/main.c
+++ b/core/main.c
@@ -14,6 +14,7 @@
 #include <time.h>
 #include <sys/time.h>
 #include <signal.h>
+#include <unistd.h>
 
 void initseed();
 void init_logfile();