Sync top-level make and configure files with FSF GCC mainline versions.

Sync top-level make and configure files with FSF GCC mainline versions.

	* configure.ac: Update year in copyright notice.
	Sync from FSF GCC mainline, bringing in the following patches.
	* Makefile.def: Likewise.
	* Makefile.tpl: Likewise.
	* configure: Regenerate.
	* Makefile.in: Regenerate.

	2016-12-21  Jakub Jelinek  <jakub@redhat.com>

	* configure.ac: Don't bootstrap libmpx unless --with-build-config
	includes bootstrap-mpx.

	2016-12-01  Matthias Klose  <doko@ubuntu.com>

	* configure.ac: Don't use pkg-config to check for bdw-gc.

	2016-11-30  Matthias Klose  <doko@ubuntu.com>

	* Makefile.def: Remove reference to boehm-gc target module.
  	* configure.ac: Include pkg.m4, check for --with-target-bdw-gc
	options and for the bdw-gc pkg-config module.

	2016-11-15  Matthias Klose  <doko@ubuntu.com>

	* config-ml.in: Remove references to GCJ.
	* configure.ac: Likewise.

	2016-09-30  Jakub Jelinek  <jakub@redhat.com>

	* configure.ac: Add target-libffi to target_libraries.
	Readd libgcj target disablings, modified to only target-libffi.
	Readd target addition of go to unsupported languages.

	2016-09-30  Andrew Haley  <aph@redhat.com>

	* Makefile.def: Remove libjava.
	* Makefile.tpl: Likewise.
	* configure.ac: Likewise.

	2016-09-26  Anton Kolesov  <Anton.Kolesov@synopsys.com>

	* configure.ac: Disable "sim" directory for arc*-*-*.

	2016-09-12  Maciej W. Rozycki  <macro@imgtec.com>

	* configure.ac: Check for the minimum in-tree MPFR version
	handled.