=> Bootstrap dependency digest>=20010302: found digest-20121220
===> Building for ruby18-itex2MML-1.4.5
swig -ruby -o itex2MML_ruby.c  itex2MML.i
gmake: swig: Command not found
gmake: *** [itex2MML_ruby.c] Error 127
*** Error code 2

Stop.
make: stopped in /usr/pkgsrc/textproc/ruby-itex2MML
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/textproc/ruby-itex2MML