Hey Ivan,

Thanks for your response.

The first one is that you didn't run `oasis setup` after you made the
> changes, so I would suggest cleaning current state
> and starting from scratch. (I usually just do `git clean -idx` just to be
> sure that I got rid of any generated files, like setup.data, et alas, but
> be careful,
> don't delete something that you need).
>

I tried cleaning up all the generated files. Same error unfortunately


> Another idea is that you're using oasis 0.4.7 with ocaml-4.03.0+flambda,
> they are currently incompatible, and can produce weird bugs. If that so,
> then consider switching
> either a compiler or oasis to different versions.
>

I am using oasis 0.4.7 and ocaml-4.03.0, but I don't appear to be using
flambda. I tried passing in -config and it said that flambda was false at
least, but I admit, I'm not especially familiar with it, so if there's some
other way I should be checking for this please let me know. Hopefully,
they're compatible sans flambda?


On Thu, Oct 27, 2016 at 1:01 AM, Jonathan DiLorenzo <
> dilorenzo@cs.cornell.edu> wrote:
>
>> Hey all,
>>
>> I'm trying to build my system using Oasis and OCamlbuild. I have 3
>> different libraries and for some reason I seem to only be able to refer
>> from one to the other in seemingly random files. For example, I want my
>> 'ppx' library to be able to use functions from my 'parser' library. One
>> file (ppx_forest.ml) can use functions from it, while another in the
>> same library (skins.ml) cannot, giving me this error:
>>
>> File "_none_", line 1:
>> Error: No implementations provided for the following modules:
>>          Forest_parser_helper referenced from ppx/ppx.cmxa(Skins)
>> Command exited with code 2.
>>
>> They can all refer to types I've defined therein though.
>>
>> I'm not fantastic at Oasis so maybe I'm just missing something basic? Any
>> ideas? Any more information I can gather to give more context otherwise?
>>
>> Thanks in advance,
>> Jonathan
>>
>> Excerpt of my Oasis file that may possibly be relevant:
>>
>> Library forest
>>   Path:          lib
>>   BuildTools:    ocamlbuild
>>   BuildDepends:   pads, str, re, re.glob, core, threads, ppx_let
>>   CompiledObject: best
>>   Modules:       Forest, PadsInterface
>>
>> Library parser
>>   Path:           parsing
>>   BuildTools:     ocamlbuild, menhir, ocamllex
>>   Findlibparent:  forest
>>   Findlibname:    parser
>>   BuildDepends:   forest, ppx_deriving.show, compiler-libs.common
>>   CompiledObject: best
>>   Modules:  Forest_parser_helper
>>   InternalModules: Forest_lexer, Forest_parser, Forest_types
>>
>> Library ppx
>>   Path:           ppx
>>   BuildTools:     ocamlbuild
>>   Findlibparent:  forest
>>   Findlibname:    ppx
>>   BuildDepends:   re, re.str, forest.parser, forest, ppx_tools.metaquot
>>   CompiledObject: best
>>   Modules:        Ppx_forest
>>   InternalModules: Ppx_forest_lib, Utility, Skins
>>   XMETAEnable:    true
>>   XMETARequires:   str re core threads ppx_tools.metaquot
>>   XMETAExtraLines:  ppx = "ppx_forest"
>>
>> Executable ppx_forest
>>   Path:           ppx
>>   MainIs:         ppx_forest.ml
>>   BuildDepends:   forest, forest.parser, forest.ppx, pads.ppx,
>> ppx_tools.metaquot
>>   CompiledObject: best
>>
>>
>