* gcc-interface/ada-tree.h (TYPE_MAX_ALIGN): New macro.
	* gcc-interface/decl.c (gnat_to_gnu_entity): Do not set PACKED to -2.
	Remove obsolete code setting the alignment on some atomic types.
	When the type has no alignment but needs strict alignment and has a
	size clause, compute a maximum alignment and set it on the type.
	(adjust_packed): Remove handling of -2 argument.  Deal with TYPE_ALIGN
	and TYPE_MAX_ALIGN directly.
	(gnat_to_gnu_field): Do not document -2 as argument.
	(components_to_record): Likewise.
	* gcc-interface/utils.c (finish_record_type): Do not bump alignment of
	the record type beyond TYPE_MAX_ALIGN.  Reset the latter on exit.

	* gcc-interface/Makefile.in (PICFLAG_FOR_TARGET): Move around.
	(GNATLIBCFLAGS_FOR_C): Reformat.
	(GCC_CFLAGS): Delete.

From-SVN: r231062