[opam-devel] OPAM Roadmap -- what next ?
whitequark at whitequark.org
Sun Dec 21 12:43:39 GMT 2014
On 2014-12-21 15:25, Daniel Bünzli wrote:
> Le dimanche, 21 décembre 2014 à 12:28, Thomas Gazagnaire a écrit :
>> Having a way to have multiple versions of the same library installed
>> in the same switch could be very cool as well, although again it
>> requires support in ocamlfind/build systems
> I'm not so sure you need anything ocamlfind and/or in the build
> systems. Wouldn't it be sufficient to install each package in
> PKG.VERSION directories with PKG symlinked on the latest version ? If
> your root package name is not specified in the META file then you will
> be able to name the versioned packages in ocamlfind.
Imagine four packages installed:
* A.1 depends: B<2
* A.2 depends B>=2
Now if you request A.1, the wrong version of B will get pulled in.
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