In Solaris 2.5 nm is slow or dumps core.

A bug introduced in the 2.5 locale libraries make strcoll()
return bogus values when confronted with empty strings.
This bogus empty string comparison makes that strcoll no longer
defines a strict order on strings, that confuses the hell out
of qsort which promptly crashes.

Workaround: set LC_COLLATE to "C"

(Note that xview applications will usually reset LC_COLLATE to
LC_ALL, so in cmdtool/shelltool windows, LC_COLLATE needs to be set
again.)