[Caml-list] ocamlbuild: problem building -for-pack targets with .p.native extension

[Christoph Sticksel <christoph@sticksel.info>]

Hi all,

I have an ocamlbuild project where I keep some modules in a package and 
that compiles all fine as .native or .byte. However, once I want to 
compile it to native profiling .p.native, it fails with

| Error: File SExpr/stringSExpr.p.cmx was compiled without access
|        to the .cmx file for module SExprBase,
|        which was produced by `ocamlopt -for-pack'.
|        Please recompile SExpr/stringSExpr.p.cmx with the correct `-I' 
option
|        so that SExprBase.cmx is found.

although ocamlbuild does add -I SExpr to the compile commands.

The only thing I could find is a six year old question on fa.caml, which 
describes exactly the problem I am facing and includes a minimal example 
that still fails for me, see below.

Can anybody shed some light on that? Is this issue still open?

Thanks,
Christoph


On Monday, November 19, 2007 3:59:52 PM UTC-6, rvanmelle wrote:

     We been happily (mostly) using ocamlbuild for our project, but we've
     been running into this puzzling problem building .p.native targets
     when the modules are packed using the -for-pack tag.

     I boiled it down to this relatively simple test case which exhibits
     the problem.  I was hoping that somebody might have seen this problem
     and/or have a workaround or fix... or simply point out the silly
     mistake we are making.  The complete set of files for this simple
     project are shown below, along with sample usage/output exhibiting the
     problem:

     ****************

     foo/foo.ml <http://foo.ml>:
     let _ =
         let x = Bar.bar () in
         Printf.printf "%g\n%!" (x +. 3.0)

     foo/bar.ml <http://bar.ml>:
     let bar () = 5.

     foo/_tags:
     <foo.p.cmx>: for-pack(Pho)
     <bar.p.cmx>: for-pack(Pho)

     foo/pho.mlpack:
     Foo
     Bar

     $ ocamlbuild foo/foo.native
     Finished, 7 targets (7 cached) in 00:00:00.
     $ ./foo.native
     8
     $ ocamlbuild foo/foo.p.native
     + /opt/local/bin/ocamlopt.opt -p foo/bar.p.cmx foo/foo.p.cmx -o foo/
     foo.p.native
     File foo/foo.p.cmx was compiled without access to the .cmx file
     for module Bar, which was produced by `ocamlopt -for-pack'.
     Please recompile foo/foo.p.cmx with the correct `-I' option so that
     Bar.cmx
     is found.
     Command exited with code 2.
     Compilation unsuccessful after building 7 targets (6 cached) in
     00:00:00.


     Hope somebody can help

     - Reid