diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b0ed56d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+Make.defines
+Makefile
+config.h
+config.log
+config.status
+*.o
+*.a
diff --git a/README b/README
index b760854..f8efff3 100644
--- a/README
+++ b/README
@@ -11,12 +11,10 @@ Execute the following from the src/ directory:
     cd ../libfree  # continue building the basic library
     make
 
+    # note the following two lines are not needed on Linux systems
     cd ../libroute # only if your system supports 4.4BSD style routing sockets
     make           # only if your system supports 4.4BSD style routing sockets
 
-    cd ../libxti   # only if your system supports XTI
-    make           # only if your system supports XTI
-
     cd ../intro    # build and test a basic client program
     make daytimetcpcli
     ./daytimetcpcli 127.0.0.1
diff --git a/intro/.gitignore b/intro/.gitignore
new file mode 100644
index 0000000..8746f7d
--- /dev/null
+++ b/intro/.gitignore
@@ -0,0 +1,11 @@
+daytimetcpcli
+daytimetcpcli1
+daytimetcpcli2
+daytimetcpcli3
+daytimetcpsrv
+daytimetcpsrv1
+daytimetcpsrv2
+daytimetcpsrv3
+daytimetcpcliv6
+daytimetcpsrvv6
+byteorder
diff --git a/libfree/inet_ntop.c b/libfree/inet_ntop.c
index 192cdbd..3443f09 100644
--- a/libfree/inet_ntop.c
+++ b/libfree/inet_ntop.c
@@ -1,3 +1,9 @@
+/*
+ * The contents of this file are included with the system,
+ * so no longer needed.
+ */
+#ifdef notdef
+
 /* This is from the BIND 4.9.4 release, modified to compile by itself */
 
 /* Copyright (c) 1996 by Internet Software Consortium.
@@ -196,3 +202,5 @@ inet_ntop6(src, dst, size)
 	strcpy(dst, tmp);
 	return (dst);
 }
+
+#endif /* notdef */