fix build error in fuzz tests

a missing include file caused dns_message_checksig.c to fail
to build on some platforms. this has been fixed.

diff --git a/fuzz/dns_message_checksig.c b/fuzz/dns_message_checksig.c
index 5987284a97adc8280cffba3ca70cfcc7a7dcd95f..6480c7672750057b6c4737c85cb18c86ba3a8da2 100644 (file)
--- a/fuzz/dns_message_checksig.c
+++ b/fuzz/dns_message_checksig.c
@@ -14,6 +14,7 @@
 #include <inttypes.h>
 #include <stdbool.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #include <isc/buffer.h>
 #include <isc/commandline.h>