Switch to side-by-side view

--- a/src/utils/readfile.cpp
+++ b/src/utils/readfile.cpp
@@ -18,6 +18,7 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 #ifndef TEST_READFILE
+#include "autoconfig.h"
 
 #include <unistd.h>
 #include <fcntl.h>