
Technically, you can skip recompiling the stage1 compiler. But I never bother: all of the libraries must be rebuilt; you have, after all, changed the interface file format. Edward Excerpts from Jan Stolarek's message of 2015-04-15 13:20:10 +0100:
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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