1 files changed, 55 insertions, 0 deletions
diff --git a/usr.bin/make/lst.lib/lstAddNew.c b/usr.bin/make/lst.lib/lstAddNew.c
new file mode 100644
index 00000000000..2c74119b371
--- /dev/null
+++ b/usr.bin/make/lst.lib/lstAddNew.c
@@ -0,0 +1,55 @@
+/*	$OpenPackages$ */
+/*	$OpenBSD: lstAddNew.c,v 1.1 2001/05/03 13:41:16 espie Exp $	*/
+/* ex:ts=8 sw=4:
+ */
+
+/*
+ * Copyright (c) 1999 Marc Espie.
+ *
+ * Code written for the OpenBSD project.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
+ * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include	"lstInt.h"
+
+#ifndef lint
+UNUSED
+static char rcsid[] = "$OpenBSD: lstAddNew.c,v 1.1 2001/05/03 13:41:16 espie Exp $";
+#endif /* not lint */
+
+/* Add datum to the end of a list only if it wasn't there already.
+ * Returns FAILURE if datum was already there.
+ */
+ReturnStatus
+Lst_AddNew(l, d)
+    Lst 	l;
+    void	*d;
+{
+    if (Lst_Member(l, d) != NULL)
+	return FAILURE;
+    else {
+	Lst_AtEnd(l, d);
+	return SUCCESS;
+    }
+}
+