Could be! I’m far from a computer much of this week On Sat, Oct 23, 2021 at 2:36 PM Brandon Allbery <allber...@gmail.com> wrote:
> I would expect that to be -I and for -i to specify module paths (which > might well mean .hi). > > On Sat, Oct 23, 2021 at 2:32 PM Carter Schonwald < > carter.schonw...@gmail.com> wrote: > >> I would assume the -i is for include c header search paths but I could be >> wrong >> >> On Sat, Oct 23, 2021 at 6:00 AM Oleg Grenrus <oleg.gren...@iki.fi> wrote: >> >>> This looks like a bug. >>> >>> -hidir documentation says >>> >>> > Redirects all generated interface files into ⟨dir⟩, instead of the >>> default. >>> > Please also note that when doing incremental compilation (by ghc >>> --make or ghc -c), this directory is where GHC looks into to find interface >>> files. >>> >>> And documentation for -i doesn't mention looking for interface files. >>> >>> So by doing >>> >>> % ghc -dynamic-too -c lib/Lib.hs -odir odir -hidir hidir_Lib >>> % ghc -dynamic-too -c Main.hs -odir odir -hidir hidir_Main -ihidir_Lib >>> 1 >>> % ghc odir/Lib.o odir/Main.o -o Demo >>> % ./Demo >>> True >>> >>> everything compiles, TH is run, and demo works. The result files are >>> >>> % find . >>> . >>> ./Demo >>> ./Main.hs >>> ./hidir_Main >>> ./hidir_Main/Main.dyn_hi >>> ./hidir_Main/Main.hi >>> ./odir >>> ./odir/Main.dyn_o >>> ./odir/Main.o >>> ./odir/Lib.dyn_o >>> ./odir/Lib.o >>> ./hidir_Lib >>> ./hidir_Lib/Lib.dyn_hi >>> ./hidir_Lib/Lib.hi >>> ./lib >>> ./lib/Lib.hs >>> >>> --- >>> >>> The confusing error is caused by Lib module in libiserv: >>> https://hackage.haskell.org/package/libiserv >>> which GHC picks! >>> >>> If we rename your Lib module to Library, the error is way better: Could >>> not find module ‘Library’ >>> >>> I also tried using same -hidir when compiling both modules, then GHC >>> still cannot find the Library interface, even the documentation says it >>> should. >>> >>> Please open a GHC issue at https://gitlab.haskell.org/ghc/ghc/-/issues >>> >>> >>> >>> - Oleg >>> On 22.10.2021 19.16, Domínguez, Facundo wrote: >>> >>> Dear devs, >>> >>> I'm confused about the meaning of -hidir and -i. Here's my experiment >>> with both ghc-9.2.0 and ghc-8.10.4. >>> >>> > $ find >>> > ./Main.hs >>> > ./lib/Lib.hs >>> > >>> > $ ghc -dynamic-too -c lib/Lib.hs -odir odir -hidir hidir_Lib >>> > >>> > $ ghc -dynamic-too -c Main.hs -odir odir -ihidir_Lib -hidir hidir_Main >>> > >>> > Main.hs:3:1: error: >>> > Bad interface file: hidir_Main/Lib.hi >>> > hidir_Main/Lib.hi: openBinaryFile: does not exist (No such >>> file or directory) >>> > | >>> > 3 | import Lib >>> > | ^^^^^^^^^^ >>> >>> If I only use -hidir, it still fails with another error >>> >>> > $ ghc -dynamic-too -c Main.hs -odir odir -hidir hidir_Lib >>> > >>> > Main.hs:7:29: error: Variable not in scope: f >>> > | >>> > 7 | main = print $(runIO (print f) >> [| True |]) >>> > | ^ >>> >>> If I use both -i and -hidir pointing to the same folder, then it works! >>> >>> > $ ghc -dynamic-too -c Main.hs -odir odir -ihidir_Lib -hidir hidir_Lib >>> >>> Now, is this behavior a bug or a feature? And if it is a bug, what is >>> the expected behavior? >>> >>> Programs copied below. >>> >>> Thank you! >>> Facundo >>> >>> > $ cat lib/Lib.hs >>> > module Lib where >>> > >>> > f :: Int >>> > f = 1 >>> > >>> > $ cat Main.hs >>> > {-# LANGUAGE TemplateHaskell #-} >>> > >>> > import Lib >>> > import Language.Haskell.TH <http://language.haskell.th/> >>> > >>> > main :: IO () >>> > main = print $(runIO (print f) >> [| True |]) >>> >>> _______________________________________________ >>> ghc-devs mailing >>> listghc-devs@haskell.orghttp://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs >>> >>> _______________________________________________ >>> ghc-devs mailing list >>> ghc-devs@haskell.org >>> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs >>> >> _______________________________________________ >> ghc-devs mailing list >> ghc-devs@haskell.org >> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs >> > > > -- > brandon s allbery kf8nh > allber...@gmail.com >
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