Cleanup for GCC-4.x
diff --git a/board/eric/eric.c b/board/eric/eric.c
index 02fe8dc..5413ae1 100644
--- a/board/eric/eric.c
+++ b/board/eric/eric.c
@@ -85,8 +85,8 @@
 
 int checkboard (void)
 {
-	unsigned char *s = getenv ("serial#");
-	unsigned char *e;
+	char *s = getenv ("serial#");
+	char *e;
 
 	puts ("Board: ");