Building patches that change format of interface files

Jan Stolarek jan.stolarek at p.lodz.pl
Wed Apr 15 12:20:10 UTC 2015


GHC Devs,

Once I compile GHC I use the "cd ghc; make 2" trick to re-compile any changes. That however does 
not work if my code changes modify the format of interface files - the resulting compiler is 
unusable. In fact the only way to get a working compiler after interface format change that I am 
aware of is to rebuild everything from scratch. Needless to say, this takes a lot of time. Is 
there a better way? I'd like to test D841 but if this means rebuilding everything then I'll have 
to pass.

Janek

---
Politechnika Łódzka
Lodz University of Technology

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