*-*-kopensolaris*-gnu): Don't define SINGLE_LIBC.
	(i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-knetbsd*-gnu |
	i[34567]86-*-gnu* | i[34567]86-*-kopensolaris*-gnu,
	x86_64-*-kfreebsd*-gnu | x86_64-*-knetbsd*-gnu): Don't use
	linux*.h headers.
	* config/gnu-user.h (TARGET_C99_FUNCTIONS, TARGET_HAS_SINCOS):
	Define.
	* config/i386/gnu.h (MD_UNWIND_SUPPORT): Don't undefine.
	* config/i386/kfreebsd-gnu.h (MD_UNWIND_SUPPORT): Don't undefine.
	* config/i386/knetbsd-gnu.h (MD_UNWIND_SUPPORT): Don't undefine.
	* config/i386/kopensolaris-gnu.h (MD_UNWIND_SUPPORT): Don't
	undefine.
	* config/i386/linux-unwind.h (x86_fallback_frame_state): Don't use
	REG_NAME.
	* config/i386/linux.h (REG_NAME): Don't define.
	* config/i386/linux64.h (REG_NAME): Don't define.
	* config/linux.h (TARGET_C99_FUNCTIONS, TARGET_HAS_SINCOS):
	Undefine before defining.

From-SVN: r173119