2 files changed, 96 insertions, 0 deletions
diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/lib/mbmemcasecmp.c b/gnulib/lib/mbmemcasecmp.c
new file mode 100644
index 0000000..9f5d083
--- /dev/null
+++ b/gnulib/lib/mbmemcasecmp.c
@@ -0,0 +1,96 @@
+/* Compare two memory areas with possibly different lengths, case-insensitive.
+   Copyright (C) 1998-1999, 2005-2011 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2009,
+   based on earlier glibc code.
+
+   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/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "mbmemcasecmp.h"
+
+#include <ctype.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#include "mbiter.h"
+
+#define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
+
+int
+mbmemcasecmp (const char *s1, size_t n1, const char *s2, size_t n2)
+{
+  if (s1 == s2)
+    return (n1 < n2 ? -1 : n1 > n2 ? 1 : 0);
+
+  if (MB_CUR_MAX > 1)
+    {
+      mbi_iterator_t iter1;
+      mbi_iterator_t iter2;
+
+      mbi_init (iter1, s1, n1);
+      mbi_init (iter2, s2, n2);
+
+      while (mbi_avail (iter1) && mbi_avail (iter2))
+        {
+          int cmp = mb_casecmp (mbi_cur (iter1), mbi_cur (iter2));
+
+          if (cmp != 0)
+            return cmp;
+
+          mbi_advance (iter1);
+          mbi_advance (iter2);
+        }
+      if (mbi_avail (iter1))
+        /* s2 terminated before s1.  */
+        return 1;
+      if (mbi_avail (iter2))
+        /* s1 terminated before s2.  */
+        return -1;
+      return 0;
+    }
+  else
+    {
+      const unsigned char *s1_end = (const unsigned char *) (s1 + n1);
+      const unsigned char *s2_end = (const unsigned char *) (s2 + n2);
+      const unsigned char *p1 = (const unsigned char *) s1;
+      const unsigned char *p2 = (const unsigned char *) s2;
+
+      while (p1 < s1_end && p2 < s2_end)
+        {
+          unsigned char c1 = TOLOWER (*p1);
+          unsigned char c2 = TOLOWER (*p2);
+          if (c1 != c2)
+            {
+              if (UCHAR_MAX <= INT_MAX)
+                return c1 - c2;
+              else
+                /* On machines where 'char' and 'int' are types of the same
+                   size, the difference of two 'unsigned char' values
+                   - including the sign bit - doesn't fit in an 'int'.  */
+                return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0);
+            }
+          ++p1;
+          ++p2;
+        }
+      if (p1 < s1_end)
+        /* s2 terminated before s1.  */
+        return 1;
+      if (p2 < s2_end)
+        /* s1 terminated before s2.  */
+        return -1;
+      return 0;
+    }
+}