Well, I gave this a shot, and got more errors. I'm going to list what I did, and then copy the errors, and then I'm out for the day. git clone https://github.com/alavrik/piqi.git cd piqi/piqilib make && make ocaml ocamlfind ocamlc -ccopt "-fPIC -DPIC -shared -DNATIVE_CODE -o piqi_c_impl.so " piqi_c_impl.c ocamlfind ocamlc -a -custom -dllib piqilib_stubs -o piqilib.cma piqi_version.cmo piqi_piqirun.cmo piqi_piqi.cmo piqloc.cmo piqi_util.cmo piq_ast.cmo piqi_impl_piqi.cmo piqi_boot.cmo piqi_c.cmo piqi_config.cmo piqi_iolist.cmo piqi_name.cmo piqi_common.cmo piqi_file.cmo piqi_command.cmo piqi_protobuf.cmo piqi_db.cmo piq_lexer.cmo piq_parser.cmo piq_gen.cmo piqi_objstore.cmo piqobj.cmo piqobj_common.cmo piqobj_to_protobuf.cmo piqobj_of_protobuf.cmo piqobj_to_piq.cmo piqobj_of_piq.cmo piq.cmo piqi.cmo piqi_pp.cmo piqi_json_parser.cmo piqi_json_gen.cmo piqi_json.cmo piqi_base64.cmo piqobj_to_json.cmo piqobj_of_json.cmo piqi_xml.cmo piqobj_to_xml.cmo piqobj_of_xml.cmo piqi_convert.cmo piqi_compile.cmo piqi_light.cmo piqi_getopt.cmo cp piqi_c_impl.so piqilib_stubs.so utop -require mylib (mylib being the bap package that was compiled with oasis where a BuildDepends: piqilib specified a need). ----------- Cannot load required shared library dllpiqilib_stubs. Reason: ./dllpiqilib_stubs.so: ./dllpiqilib_stubs.so: only ET_DYN and ET_EXEC can be loaded. Error: Reference to undefined global `Piqi_convert' On Thu, Mar 19, 2015 at 3:33 PM, Kenneth Adam Miller < kennethadammiller@gmail.com> wrote: > Thanks! I appreciate this so much! > > Gah, I skipped sleep in my determination to fix this. > > I will hit it with -dllib iteration. I love oasis, and I'm an avid user. > Piqi doesn't use oasis :( sadness. > > It does, however, already do the -custom approach, but only when compiling > the cma (I differentiate you said when building the executable). So I don't > know why it wouldn't work with that. In any case, I will take your advice > about the proper route. I'm all about quality and doing things right! > > On Thu, Mar 19, 2015 at 3:01 PM, Jeremie Dimino > wrote: > >> I have to run, but think the problem is that piqilib is not building a >> shared library for its C stubs: if you want to be able to load a >> library with C stubs in the toplevel, the stubs must be packed into a >> shared library. You normally do this with ocamlmklib and pass a -dllib >> option when building the .cma. oasis does all that automatically. >> >> This other option is to build the bytecode executable with -custom, >> which will link the C libraries, the ocamlrun executable and the >> bytecode into a single native executable. >> >> So simply adding -custom when building a custom utop should work. But >> the proper fix is to update piqilib to build a .so for its C stubs. >> >> >> >> On Thu, Mar 19, 2015 at 6:19 PM, Kenneth Adam Miller >> wrote: >> > So, I've been working for a while with a library and I've made a good >> > iteration. My code compiles and is nice, it does what is expected, but >> it >> > depends on a library, Piqi, that doesn't want to play nice in the >> > interpreter. I want to be a good citizen and do my homework and due >> > diligence, but nothing I do seems to make utop want to play nice with >> piqi. >> > >> > Here goes: >> > >> > When I execute utop -require mypackage repository with the newly built >> > package mypackage, but I get this error: >> > >> > File "_none_", line 1: >> > Error: The external function `camlidl_piqi_c_piqi_strtoull' is not >> available >> > >> > I checked out piqi locally, and pinned the package to my local build, >> where >> > I tried to ensure that the appropriate .c file is getting compiled and >> > linked into the cma and cmxa. They are without a shadow of a doubt. I >> then >> > thought maybe I would add an include directive to utop to tell it to >> pick up >> > the mli where the the external func : type = "name" is. Nope. >> > >> > I've done everything I can, from adding all combinations of additional >> > piqirun/piqilib/piqirun.pb/piqirun.ext combinations to the _oasis file >> that >> > specifies the serialization to trying to build my own utop to adding >> > additional require statements and include statements in the utop >> script. So >> > after trying to add the dependency to BuildDepends for myouterlib, I had >> > backed off to just adding the mylibrary to the specific binary that >> consumes >> > it, which is where my changes are (in that binary). >> > >> > I even went so far as to just try and get the changes compiled into a >> custom >> > utop. Nope. I got errors and errors; I built it with: >> > ocamlbuild -use-ocamlfind -pkg threads -pkg utop -pkg myouterlib -pkg >> camlp4 >> > -pkg core_kernel customtop.top >> > >> > (At the time I ran this, I had bap package's _oasis updated with the >> > appropriate compile BuildDepends so that it would link mylibrary too) >> > >> > and I had the let () = Utop_main.main ();; in "utopmain.ml" and >> customary >> > customtop.mltop containing just "Utopmain". I got: >> > >> > (Unbound value > which >> > is specified in -pkg!>) >> > >> > I don't know what else to do besides ship code that is watered down >> without >> > an interactive component. :/ >> >> >> >> -- >> Jeremie >> > >