gold patch committed: Provide a version of mremap

[Ian Lance Taylor]

gold requires mmap.  It also uses mremap.  Some systems provide mmap but
not mremap.  I committed this patch to add a simple version of mremap
for use on systems which do not have it.  This version of mremap
suffices for gold, but is not a general replacement.

Ian


2009-03-27  Ian Lance Taylor  <iant@google.com>

	* mremap.c: New file.
	* configure.ac: Call AC_REPLACE_FUNCS on mremap.
	* gold.h (MREMAP_MAYMOVE): Define if HAVE_MREMAP is not defined.
	(mremap): Declare if HAVE_MREMAP is not defined.
	* configure, Makefile.in, config.in: Rebuild.


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