[Nfd-dev] ndn-cxx may breaks ndnSIM

[Alex Afanasyev]

Hi Junxiao,

The current recommendation for using git-HEAD is because we don’t have a release version of the library that is suitable for ndnSIM.  My plan is to change this recommendation to use the released version of ndn-cxx, which should be matched with PPA head.

At some point, it may be necessary to import ndn-cxx library in a similar way we did NFD (or add a submodule that is a forked version of ndn-cxx).  This may be necessary for further changes to make sure some ndn-cxx based application can run within the simulated environment.

—
Alex

> On Jan 31, 2015, at 4:21 PM, Junxiao Shi <shijunxiao at email.arizona.edu> wrote:
> 
> Dear folks
> 
> Currently ndnSIM installation procedure <http://ndnsim.net/2.0/getting-started.html <http://ndnsim.net/2.0/getting-started.html>> recommends to use either git-HEAD version of ndn-cxx, or ndn-cxx-dev package from PPA.
> Some ndn-cxx Changes are inevitably backwards-incompatible, and may cause the API to be incompatible with ndn-cxx-dev package.
> This leads to a dilemma: if ndnSIM is updated to accommodate the new ndn-cxx API, it won't compile with ndn-cxx-dev package; if ndnSIM is not updated, it can compile with ndn-cxx-dev package, but cannot compile with git-HEAD of ndn-cxx.
> 
> There are a few potential solutions:
> ndnSIM installation procedure can pin a specific version of ndn-cxx, instead of using git-HEAD; that version shall have same API with ndn-cxx-dev package
> ndnSIM installation procedure can recommend either git-HEAD or ndn-cxx-dev package, but not both
> ndn-cxx-dev package should be rebuilt whenever a backwards-incompatible Change is merged to ndn-cxx
> 
> Yours, Junxiao
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