I tried that, and then once again the different variations of the package/library name, still giving me the same issue. On Mon, Jun 1, 2015 at 5:30 PM, Gabriel Scherer wrote: > You might need the -use-ocamlfind flag to enable ocamlfind-based > include-path lookup? > > On Mon, Jun 1, 2015 at 11:19 PM, Kenneth Adam Miller < > kennethadammiller@gmail.com> wrote: > >> I've been trying to build with ocamlbuild for several hours, and I keep >> getting the following error: >> >> Error: No implementations provided for the following modules: >> Camlp4 referenced from >> /home/xyz/.opam/4.02.1/lib/comparelib/pa_compare.cmxa(Pa_compare), >> >> /home/xyz/.opam/4.02.1/lib/enumerate/enumerate.cmxa(Pa_enumerate), >> /home/xyz/.opam/4.02.1/lib/herelib/pa_herelib.cmxa(Pa_here), >> >> /home/xyz/.opam/4.02.1/lib/fieldslib/pa_fields_conv.cmxa(Pa_fields_conv), >> >> /home/xyz/.opam/4.02.1/lib/variantslib/pa_variants_conv.cmxa(Pa_variants_conv) >> Pa_type_conv referenced from >> /home/xyz/.opam/4.02.1/lib/comparelib/pa_compare.cmxa(Pa_compare), >> >> /home/xyz/.opam/4.02.1/lib/enumerate/enumerate.cmxa(Pa_enumerate), >> >> /home/xyz/.opam/4.02.1/lib/fieldslib/pa_fields_conv.cmxa(Pa_fields_conv), >> >> /home/xyz/.opam/4.02.1/lib/variantslib/pa_variants_conv.cmxa(Pa_variants_conv) >> >> >> Clearly, this can be easily interpreted; it can't find camlp4 or the >> other. But I've tried all manner of -pkg camlp4 or -lib camlp4 (and >> similarly with Pa_type_conv, enumerate fieldslib and variantslib) and it's >> not picking these two up. I've checked and camlp4 is installed. I've looked >> in the ~/.opam directory and camlp4lib.cmxa and camlp4fulllib.cmxa are each >> there. >> > >