Switch to side-by-side view

--- a/src/common/autoconfig.h.in
+++ b/src/common/autoconfig.h.in
@@ -8,6 +8,12 @@
 
 /* Path to the aspell program */
 #undef ASPELL_PROG
+
+/* Path to the file program */
+#undef FILE_PROG
+
+/* Enable using the system's 'file' command to id mime if we fail internally */
+#undef USE_SYSTEM_FILE_COMMAND
 
 /* Real time monitoring option */
 #undef RCL_MONITOR