Ensure ssize_t is declared before we use it

diff --git a/librazor/razor-internal.h b/librazor/razor-internal.h
index 69d7857..da71196 100644 (file)
--- a/librazor/razor-internal.h
+++ b/librazor/razor-internal.h
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #include <stdarg.h>
+#include <unistd.h>
 
 #include "razor.h"