--with-fptools=<foo> is optional, so don't barf if it's not given. (==> ../../fptools is no longer a default.)
--with-fptools=<foo> is optional, so don't barf if it's not given.
(==> ../../fptools is no longer a default.)

'unix/configure' update to follow.

FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs