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diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/lib/count-one-bits.h b/gnulib/lib/count-one-bits.h
new file mode 100644
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--- /dev/null
+++ b/gnulib/lib/count-one-bits.h
@@ -0,0 +1,77 @@
+/* count-one-bits.h -- counts the number of 1-bits in a word.
+   Copyright (C) 2007-2011 Free Software Foundation, Inc.
+
+   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/>.  */
+
+/* Written by Ben Pfaff.  */
+
+#ifndef COUNT_ONE_BITS_H
+# define COUNT_ONE_BITS_H 1
+
+#include <stdlib.h>
+#include "verify.h"
+
+/* Expand the code which computes the number of 1-bits of the local
+   variable 'x' of type TYPE (an unsigned integer type) and returns it
+   from the current function.  */
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
+#define COUNT_ONE_BITS(BUILTIN, TYPE)              \
+        return BUILTIN (x);
+#else
+#define COUNT_ONE_BITS(BUILTIN, TYPE)                                       \
+        /* This condition is written so as to avoid shifting by more than   \
+           31 bits at once, and also avoids a random HP-UX cc bug.  */      \
+        verify (((TYPE) -1 >> 31 >> 31 >> 2) == 0); /* TYPE has at most 64 bits */ \
+        int count = count_one_bits_32 (x);                                  \
+        if (1 < (TYPE) -1 >> 31) /* TYPE has more than 32 bits? */          \
+          count += count_one_bits_32 (x >> 31 >> 1);                        \
+        return count;
+
+/* Compute and return the number of 1-bits set in the least
+   significant 32 bits of X. */
+static inline int
+count_one_bits_32 (unsigned int x)
+{
+  x = ((x & 0xaaaaaaaaU) >> 1) + (x & 0x55555555U);
+  x = ((x & 0xccccccccU) >> 2) + (x & 0x33333333U);
+  x = (x >> 16) + (x & 0xffff);
+  x = ((x & 0xf0f0) >> 4) + (x & 0x0f0f);
+  return (x >> 8) + (x & 0x00ff);
+}
+#endif
+
+/* Compute and return the number of 1-bits set in X. */
+static inline int
+count_one_bits (unsigned int x)
+{
+  COUNT_ONE_BITS (__builtin_popcount, unsigned int);
+}
+
+/* Compute and return the number of 1-bits set in X. */
+static inline int
+count_one_bits_l (unsigned long int x)
+{
+  COUNT_ONE_BITS (__builtin_popcountl, unsigned long int);
+}
+
+#if HAVE_UNSIGNED_LONG_LONG_INT
+/* Compute and return the number of 1-bits set in X. */
+static inline int
+count_one_bits_ll (unsigned long long int x)
+{
+  COUNT_ONE_BITS (__builtin_popcountll, unsigned long long int);
+}
+#endif
+
+#endif /* COUNT_ONE_BITS_H */