osx10.6 xsnow @1.42 (x11) ld: library not found for -lXext

[apple@…]

Darwin me.mymachine 10.4.0 Darwin Kernel Version 10.4.0: Fri Apr 23 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 i386

Xcode 3.2.4 Component versions: DevToolsCore-1705.0; DevToolsSupport-1591.0 BuildVersion: 10M2309

install xsnow from mac ports fails, as follows:

--->  Computing dependencies for xsnow
--->  Building xsnow
Error: Target org.macports.build returned: shell command failed
Log for xsnow is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_xsnow/main.log
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>

the log (supported by an attempt to manually make) reveals the error in finding the library:

rm -f xsnow
/usr/bin/gcc-4.2 -o xsnow -Os -Wall -Wpointer-arith -no-cpp-precomp     -L/opt/local/lib   xsnow.o toon_root.o -lXext -lX11   -lm -lXpm   
ld: library not found for -lXext
collect2: ld returned 1 exit status
make: *** [xsnow] Error 1

[jmroot (Joshua Root)]

r72636