Update.

Update.

2002-02-02  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/generic/dl-environ.c (unsetenv): Optimize.  Don't use
	strncmp.
	* elf/dl-load.c (is_dst): Optimize.  Don't call strncmp twice.
	* elf/rtld.c (process_dl_debug): Optimize. Avoid calls to strncmp,
	strspn, and strcspn.
	(process_envvars): Don't use strcspn.

	* elf/dl-load.c (_dl_dst_count): Fix possible endless loop.
	(_dl_dst_substitute): Likewise.