error message " eval: 1: Syntax error: "|" unexpected, [libglib-2.0.la] error 2 " when I "portupgrade glib-2\*"

[Johnson Fu]

Hello ladies and gentlemen,

In /usr/ports/UPDATING, you can see there is a glib upgrade issue on the
date 20080323, I perform "portupgrade glib-2\* ", but get an error message "
ntf.o .libs/giounix.o .libs/gspawn.o  libcharset/.libs/libcharset.a |  |
/usr/bin/sed 's/.* //' | sort | uniq > .libs/libglib-2.0.exp
eval: 1: Syntax error: "|" unexpected
gmake[4]: *** [libglib-2.0.la] error 2
gmake[4]: Leaving directory `/usr/ports/devel/glib20/work/glib-2.16.5/glib "

Anybody can help me to fix it ?  Thanks a lot.