libXm.so.1

[steve]

I have installed lesstif-0.88.1-1.i386rpm on my machine as a requirement
for a program.  However, I am missing the libXm.so.1 library file. Could
anyone tell me where I might find this library??  Is it part of a
previous lesstif release or, is it included with source or binary
files?  "ldd" on the executable says it's needed but, "locate" does not
find it on my computer.

Please help convert a longtime D*S user to Linux!

Steve