Undue environmental influences

[Rafe Yer]

When running ./configure (on more than one package I've noted) failure 
results if a function exists in the environment with a hyphen in it's name.

e.g. (at the bash prompt):
good-test-func(){
  echo That is all this func does ...
}

.... then later on ....

./configure

error

Configure fails !

Apparently ./configure parses the environment and upon encountering the 
function name with a dash(es) in it's name, blows a fuse ;)