* xcofflink.c (xcoff_link_add_symbols): Rename local variable sub

	* xcofflink.c (xcoff_link_add_symbols): Rename local variable sub
	to o.  Clobber and restore the list of new csects around the call
	to _bfd_generic_link_add_one_symbol, in case it wants to report a
	linker error and the linker wants to read the symbol table.  Reset
	the line number count of a real section even if it has no relocs.
	(_bfd_xcoff_bfd_final_link): If shared, set the DYNAMIC flag.