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diff --git a/gnulib/lib/fstrcmp.h b/gnulib/lib/fstrcmp.h
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+/* Fuzzy string comparison.
+ Copyright (C) 1995, 2000, 2002-2003, 2006, 2008-2010 Free Software
+ Foundation, Inc.
+
+ This file was written by Peter Miller <pmiller@agso.gov.au>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _FSTRCMP_H
+#define _FSTRCMP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Fuzzy compare of S1 and S2. Return a measure for the similarity of S1
+ and S1. The higher the result, the more similar the strings are.
+ The result is bounded between 0 (meaning very dissimilar strings) and
+ 1 (meaning identical strings). */
+extern double fstrcmp (const char *s1, const char *s2);
+
+/* Like fstrcmp (S1, S2), except that if the result is < LOWER_BOUND, an
+ arbitrary other value < LOWER_BOUND can be returned. */
+extern double fstrcmp_bounded (const char *s1, const char *s2,
+ double lower_bound);
+
+/* A shortcut for fstrcmp. Avoids a function call. */
+#define fstrcmp(s1,s2) fstrcmp_bounded (s1, s2, 0.0)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif