--- gwave-code-249-trunk.orig/spicefile/sp2sp.c	2016-08-12 14:00:32.647427290 -0600
+++ gwave-code-249-trunk.orig/spicefile/sp2sp.c	2016-08-12 14:03:21.445956110 -0600
@@ -26,6 +26,8 @@ 
 #include <float.h>
 #include <errno.h>
 #include <glib.h>
+#include <unistd.h>
+
 #include "spicestream.h"
 
 #define SWEEP_NONE 0
--- gwave-code-249-trunk.orig/spicefile/test_read.c	2016-08-12 14:00:32.647427290 -0600
+++ gwave-code-249-trunk.orig/spicefile/test_read.c	2016-08-12 14:02:52.806205722 -0600
@@ -27,6 +27,7 @@ 
 #include <string.h>
 #include <errno.h>
 #include <glib.h>
+#include <unistd.h>
 
 #include "wavefile.h"