Add check for 'file' command which is necessary for 32-bit userspace detection.

tdaede · tdaede · commit 22786d6c5b3f · 2013-04-11T09:49:43.000+04:00
diff --git a/configure b/configure
@@ -237,7 +237,7 @@ need_cmd uname
 need_cmd date
 need_cmd tr
 need_cmd sed
-
+need_cmd file
 
 msg "inspecting environment"
 
