ref: a16c4e637079bb3d7f1cb93ae9b2348d710c003f
dir: /libregex/test/bld.sub/
test basic = basic.myr testmatch.myr;; test boundaries = boundaries.myr testmatch.myr;; test capture = capture.myr testmatch.myr;; test class = class.myr testmatch.myr;; test failmatch = failmatch.myr testmatch.myr;; test negclass = negclass.myr testmatch.myr;; test unicode = unicode.myr testmatch.myr;;