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diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/lib/vma-iter.h b/gnulib/lib/vma-iter.h
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+++ b/gnulib/lib/vma-iter.h
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+/* Iteration over virtual memory areas.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2011.
+
+   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 _VMA_ITER_H
+#define _VMA_ITER_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Bit mask for the FLAGS parameter of a vma_iterate callback function.  */
+#define VMA_PROT_READ    (1<<0)
+#define VMA_PROT_WRITE   (1<<1)
+#define VMA_PROT_EXECUTE (1<<2)
+
+typedef int (*vma_iterate_callback_fn) (void *data,
+                                        uintptr_t start, uintptr_t end,
+                                        unsigned int flags);
+
+/* Iterate over the virtual memory areas of the current process.
+   If such iteration is supported, the callback is called once for every
+   virtual memory area, in ascending order, with the following arguments:
+     - DATA is the same argument as passed to vma_iterate.
+     - START is the address of the first byte in the area, page-aligned.
+     - END is the address of the last byte in the area plus 1, page-aligned.
+       Note that it may be 0 for the last area in the address space.
+     - FLAGS is a combination of the VMA_* bits.
+   If the callback returns 0, the iteration continues.  If it returns 1,
+   the iteration terminates prematurely.
+   This function may open file descriptors, but does not call malloc().  */
+extern void vma_iterate (vma_iterate_callback_fn callback, void *data);
+
+/* The macro VMA_ITERATE_SUPPORTED indicates that vma_iterate is supported on
+   this platform.
+   Note that even when this macro is defined, vma_iterate() may still fail to
+   find any virtual memory area, for example if /proc is not mounted.  */
+#if defined __linux__ || defined __FreeBSD__ || defined __NetBSD__ || defined __sgi || defined __osf__ || (defined __APPLE__ && defined __MACH__) || (defined _WIN32 || defined __WIN32__) || defined __CYGWIN__ || defined __BEOS__ || defined __HAIKU__ || HAVE_MQUERY
+# define VMA_ITERATE_SUPPORTED 1
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _VMA_ITER_H */