* config.gcc: Add i386/gnu-user-common.h before all
	i386/gnu-user.h and i386/gnu-user64.h usages.

	* config/i386/gnu-user-common.h: New.

	* config/i386/gnu-user.h (CPP_SPEC): Moved to gnu-user-common.h.
	(CC1_SPEC): Likewise.
	(ENDFILE_SPEC): Likewise.
	(DEFAULT_PCC_STRUCT_RETURN): Likewise.
	(TARGET_TLS_DIRECT_SEG_REFS_DEFAULT): Likewise.
	(TARGET_OS_CPP_BUILTINS): Likewise.
	(LIBGCC2_HAS_TF_MODE): Likewise.
	(LIBGCC2_TF_CEXT): Likewise.
	(TF_SIZE): Likewise.
	(TARGET_ASM_FILE_END): Likewise.
	(STACK_CHECK_MOVING_SP): Likewise.
	(STACK_CHECK_STATIC_BUILTIN): Likewise.
	* config/i386/gnu-user64.h: Likewise.

From-SVN: r186427