Specify dependencies to native libraries, provide native libraries

[AllanBlanchard]

One might depend on a library that itself depends on a native dependency. For example, a project might depend on Zarith, which depends on GMP. In such a situation how does one provide a bundle that contains the native dependency that was used to build the OCaml library that depends on it?

[NathanReb]

If I understand this correctly there are two ways you can go about this:

1. rely on oui to embed the shared libraries needed by your executable (the default).
2. add the shared libraries you want to embed to the bundle yourself. You can do this by listing the executable in question as:

{ "path": "bin/exec", "deps": false }

instead of simply as "bin/exec".

The problem right now is that either oui does everything or you have to do it all yourself. That means that if you want to do 2 you have to use patchelf yourself to set the binary's RUNPATH. You can do it as follows:

patchelf --set-rpath '$ORIGIN' bundle/bin/exec

And simply put the .so files in the same folder as the binary itself.

We'd like to have some sort of in between as well where you can configure what oui will embed and where it will look for it eventually.