Imported Upstream version 1.0

1 files changed, 19 insertions, 1 deletions

diff --git a/portable/stdbool.h b/portable/stdbool.h
index bfbf4c4..045436f 100644
--- a/portable/stdbool.h
+++ b/portable/stdbool.h
@@ -5,13 +5,31 @@
  * following the C99 specification, on hosts that don't have stdbool.h.  This
  * logic is based heavily on the example in the Autoconf manual.
  *
+ * The canonical version of this file is maintained in the rra-c-util package,
+ * which can be found at <http://www.eyrie.org/~eagle/software/rra-c-util/>.
+ *
  * Written by Russ Allbery <rra@stanford.edu>
- * This work is hereby placed in the public domain by its author.
+ *
+ * The authors hereby relinquish any claim to any copyright that they may have
+ * in this work, whether granted under contract or by operation of law or
+ * international treaty, and hereby commit to the public, at large, that they
+ * shall not, at any time in the future, seek to enforce any copyright in this
+ * work against any person or entity, or prevent any person or entity from
+ * copying, publishing, distributing or creating derivative works of this
+ * work.
  */
 
 #ifndef PORTABLE_STDBOOL_H
 #define PORTABLE_STDBOOL_H 1
 
+/*
+ * Allow inclusion of config.h to be skipped, since sometimes we have to use a
+ * stripped-down version of config.h with a different name.
+ */
+#ifndef CONFIG_H_INCLUDED
+# include <config.h>
+#endif
+
 #if HAVE_STDBOOL_H
 # include <stdbool.h>
 #else