gdb/

gdb/
	* defs.h (struct so_list): New forward declaration.
	(make_cleanup_free_so): New declaration.
	* solib-svr4.c (ignore_first_link_map_entry): Remove.
	(svr4_free_so): Move the function here from downwards.  Handle NULL
	so->lm_info.
	(svr4_free_library_list): New.
	(svr4_read_so_list): New, moved here code from svr4_current_sos.
	Use more cleanups.  Use new parameter ignore_first instead of
	ignore_first_link_map_entry.
	(svr4_current_sos): New variable ignore_first, initialize it.  New
	variable back_to, use it for svr4_free_library_list protection.
	(svr4_free_so): Remove - move upwards.
	* utils.c: Include solist.h.
	(do_free_so, make_cleanup_free_so): New functions.