Running ruby 1.8.6 on Solaris 10.

Running a program which has run ok for a while.
Now I get [BUG] not a node 0x07 along with a core dump.

I can make a minor insignificant change to the program and it works fine.

I have seen the same bug reported for 1.9.0 on [*ruby-Bugs-6369 ] core dump
using mkmf*
Is there a patch for this?

Ron Braswell