ports/devel/icu: PTHREAD_LIBS clean

[David Xu]

On Wednesday 29 November 2006 23:52, Mikhail Teterin wrote:
<snip>
> Since nothing is using ICU in a multi-threaded fashion _right now_, the
> current version of the port builds without threads by default. Norikatsu
> confirms, he is not calling into ICU from multiple threads either, hence my
> suggestion, he does not need to change the option.
>
> When the ia64's thread-implementation improves, the next update to the port
> will change the default...
>
> 	-mi

I don't have ia64 machine, the machine in cluster is inconvenient for me to do
such a hard work. so I don't know when thread library implementation will be 
fixed, it is totally out of my control. :-)

David Xu