= generate ext/numo/gsl/*/gen/[func|const]_def.rb from texinfo

    ruby gendef.rb

= compare function lists from C header and texinfo

    ruby mklist.rb gsl_sf_def.rb > list_from_texi
    ruby parse_c.rb |sort> list_from_header
    diff -wu list_from_texi list_from_header|lv