build: Include <unistd.h> for execv

diff --git a/trust/extract.c b/trust/extract.c
index 3433151868ac5c9ef73f69f194633d4f3a799e89..64c4ade0c1ce53b199cd968685619d7694857797 100644 (file)
--- a/trust/extract.c
+++ b/trust/extract.c
@@ -57,6 +57,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 static bool
 format_argument (const char *optarg,