Log Message:
Generic dependency, to avoid inapropriate shell bang
of interpreter.

-DEPENDS+=      ruby-[0-9]*:../../lang/ruby
+DEPENDS+=      ${RUBY_BASE}>=${RUBY_REQD}:${RUBY_SRCDIR}

Thanks obache@,
I have put following lines when testing build with pbulk.

RUBY_BASE=      ruby19
RUBY_REQD=      1.9
RUBY_SRCDIR=    ../../lang/ruby19-base