library incompatibility?

There is a binary version of the r.le programs for Linux on the moon,
but when one user tries to use it, the following message is received
and the r.le.patch program produces a segmentation fault:

  r.le.patch: using incompatible library '/lib/libm.so.4'
  Desire minor version >= 521 and found 404

Could this be a source of the segmentation fault? Someone else compiled
the binary version on the moon, perhaps using a newer version of the
library...What is in this particular library - something used by
GRASS functions?

  Bill Baker
  bakerwl@uwyo.edu