ocamlduce: build fails due to warnings turned into errors

[ludwig@…]

My attempts to install ocamlduce 3.08.4pl3, Revision 1 failed because the build encountered warnings about unused variables and ocamlc.opt was passed the option -warn-error. This is on an Intel MacBook Pro with OS X 10.4.11.

castellio:~ cludwig$ port installed ocaml
The following ports are currently installed:
  ocaml @3.10.0_0 (active)
castellio:~ cludwig$ sudo port -v install ocamlduce
Password:
--->  Building ocamlduce with target opt
make -f Makefile.ocamlduce INCLUDES="-I stdlib/cduce" stdlib/cduce/custom.cmo stdlib/cduce/encodings.cmo stdlib/cduce/imap.cmo stdlib/cduce/upool.cmo stdlib/cduce/ns.cmo stdlib/cduce/sortedList.cmo stdlib/cduce/atoms.cmo stdlib/cduce/bool.cmo stdlib/cduce/chars.cmo stdlib/cduce/ident.cmo stdlib/cduce/intervals.cmo stdlib/cduce/inttbl.cmo stdlib/cduce/normal.cmo stdlib/cduce/pretty.cmo stdlib/cduce/stats.cmo stdlib/cduce/compunit.cmo stdlib/cduce/types.cmo stdlib/cduce/sequence.cmo stdlib/cduce/sample.cmo stdlib/cduce/auto_pat.cmo stdlib/cduce/patterns.cmo stdlib/cduce/value.cmo stdlib/cduce/run_dispatch.cmo stdlib/cduce/explain.cmo stdlib/cduce/typepat.cmo stdlib/cduce/serial.cmo
make[1]: `stdlib/cduce/custom.cmo' is up to date.
ocamlc.opt -warn-error A -I stdlib/cduce -c stdlib/cduce/encodings.ml
File "stdlib/cduce/encodings.ml", line 121, characters 8-27:
Warning Y: unused variable c.
File "stdlib/cduce/encodings.ml", line 122, characters 8-27:
Warning Y: unused variable c.
File "stdlib/cduce/encodings.ml", line 123, characters 8-27:
Warning Y: unused variable c.
File "stdlib/cduce/encodings.ml", line 124, characters 8-27:
Warning Y: unused variable c.

Error: error-enabled warnings (4 occurrences)
make[1]: *** [stdlib/cduce/encodings.cmo] Error 2
make: *** [cduce_types.cmo] Error 2
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_lang_ocamlduce/work/ocaml-sub" && make opt -f Makefile.ocamlduce " returned error 2
Command output: make -f Makefile.ocamlduce INCLUDES="-I stdlib/cduce" stdlib/cduce/custom.cmo stdlib/cduce/encodings.cmo stdlib/cduce/imap.cmo stdlib/cduce/upool.cmo stdlib/cduce/ns.cmo stdlib/cduce/sortedList.cmo stdlib/cduce/atoms.cmo stdlib/cduce/bool.cmo stdlib/cduce/chars.cmo stdlib/cduce/ident.cmo stdlib/cduce/intervals.cmo stdlib/cduce/inttbl.cmo stdlib/cduce/normal.cmo stdlib/cduce/pretty.cmo stdlib/cduce/stats.cmo stdlib/cduce/compunit.cmo stdlib/cduce/types.cmo stdlib/cduce/sequence.cmo stdlib/cduce/sample.cmo stdlib/cduce/auto_pat.cmo stdlib/cduce/patterns.cmo stdlib/cduce/value.cmo stdlib/cduce/run_dispatch.cmo stdlib/cduce/explain.cmo stdlib/cduce/typepat.cmo stdlib/cduce/serial.cmo
make[1]: `stdlib/cduce/custom.cmo' is up to date.
ocamlc.opt -warn-error A -I stdlib/cduce -c stdlib/cduce/encodings.ml
File "stdlib/cduce/encodings.ml", line 121, characters 8-27:
Warning Y: unused variable c.
File "stdlib/cduce/encodings.ml", line 122, characters 8-27:
Warning Y: unused variable c.
File "stdlib/cduce/encodings.ml", line 123, characters 8-27:
Warning Y: unused variable c.
File "stdlib/cduce/encodings.ml", line 124, characters 8-27:
Warning Y: unused variable c.

Error: error-enabled warnings (4 occurrences)
make[1]: *** [stdlib/cduce/encodings.cmo] Error 2
make: *** [cduce_types.cmo] Error 2

Warning: the following items did not execute (for ocamlduce): org.macports.activate org.macports.build org.macports.destroot org.macports.install
Error: Status 1 encountered during processing.
castellio:~ cludwig$ 

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #14688.

[(none)]

Milestone Port Bugs deleted

[mf2k (Frank Schima)]

See #53012.

[pmetzger (Perry E. Metzger)]

I believe mww has ceased to be a maintainer of the OCaml ports. Feel free to assign this to me for now.

[pmetzger (Perry E. Metzger)]

Okay, so far as I can tell, this port has been broken for about a decade, and ocamlduce isn't really maintained (there are no patch sets for it against the current OCaml), and has no ports that depend upon it.

I'd like to propose removing the port, and taking the unusual step of not bothering to deprecate it in the Portfile given that it has been de facto non-functioning for so long that there can't be any current users.

[pmetzger (Perry E. Metzger)]

I've removed the port and am going to close the ticket.