On Thu, Jun 3, 2010 at 3:05 PM, Don Stewart
wasserman.louis:
What, if anything, stands in the way of parallelizing Cabal installs, make -j style?
Parallelizing ghc --make
Something I wondered from watching that talk, rather than trying to make ghc run concurrently internally, can we just have --make, when faced with multiple possibilities, pick the first one without a 'ModuleName.working' file, create such a working file, and then go to? Then you can run 'ghc --make X.hs &; ghc --make X.hs &; ...'. In fact, isn't that what make -j already does? I could try it with the old style 'ghc -M' and pure makefile, but it turns out to be a lot of work to figure out what packages to include and tangle out the right .o files and whatnot, work that --make does for me.