config:
	Merge from GCC:
	2018-10-28  Iain Buclaw  <ibuclaw@gdcproject.org>

	* multi.m4: Set GDC.

	2018-07-05  James Clarke  <jrtc27@jrtc27.com>

	* dfp.m4 (enable_decimal_float): Enable for x86_64*-*-gnu* to
	catch x86_64 kFreeBSD and Hurd.

libdecnumber:
	* configure: Regenerate.

zlib:
	* configure: Regenerate.