caml-heredoc @20060107_3: The implementation text.ml does not match the interface text.cmi

[ryandesign (Ryan Carsten Schmidt)]

​https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/36698/steps/install-port/logs/stdio

Error: The implementation text.ml does not match the interface text.cmi:
       Values do not match:
         val to_string : t -> bytes
       is not included in
         val to_string : t -> string
       File "text.mli", line 7, characters 0-27: Expected declaration
       File "text.ml", line 34, characters 4-13: Actual declaration
make: *** [text.cmx] Error 2