compile error with Ruby

[A.L.M.Buxey at lboro.ac.uk]

hi,

just a quick heads up.  noted the following issue with
freeradius 2.1.6 when compiling.


no Ruby installed  - configure script WARNs and doesnt try including Ruby support

only Ruby tools installed - configure thinks all is okay - make then
fails because ruby.h is not present


Ruby development package installed - configure says all is okay and make works

(ie ruby-devel must be installed (as expected!) but if the system has
only the Ruby binary installed then configure stage thinks its okay to build
in Ruby support. 

not a show stopper because development has to be flagged on the congigure
line (?) but a little quirky - i cant recall any other modules that think
its all okay if just the runtime binary is present (eg openssl)

alan