I think you can compile elm with GCC and GCC can be built on Solaris.

My thoughts are that everyone would install GCC on Solaris, HP-UX or any more commercial system as one of their first admin tasks

Here is a link where someone was using GCC to build elm on a Sun in 1994

http://www.geocrawler.com/archives/3...4/9/0/1962250/

Time flies......

Here is a 1998 link that shows elm as freeware for Solaris 2.5:

http://smc.vnet.net/solaris_2.5_nof.html

And Solaris 7:

http://sunfreeware.com/programlistsparc7.html

Including this critical link:

http://sunfreeware.com/gcc.html