please help with ghc package-db flags

[Brandon Allbery]

Not necessarily filesystem; also check GHC_PACKAGE_PATH in the environment.

On Mon, Sep 27, 2021 at 4:51 PM Norman Ramsey <nr at cs.tufts.edu> wrote:

> I've traced some troubles to a problem with GHC's response
> to the -clear-package-db and -package-db flags.  I would very much
> like to know if others can duplicate this issue.
>
> All that is needed is for you to try the following commands, or
> whatever variations may be appropriate for whatever ghc versions you
> have installed on your system:
>
>   ghc-pkg init /tmp/empty-package-db
>   ghc        -clear-package-db -package-db /tmp/empty-package-db/ -v
>   ghc-9.0.1  -clear-package-db -package-db /tmp/empty-package-db/ -v
>   ghc-8.10.7 -clear-package-db -package-db /tmp/empty-package-db/ -v
>
> On my system at this present moment, ghc-8.10.7 respects the commands,
> but ghc-9.0.1 does not.  The output from the `-v` options show what's
> happening: if GHC finds any packages that are *not* "wired-in," then
> something is broken.  As examples, I attach the sample outputs from my
> own system.
>
> I think the issue is being caused by something mysterious in my filesystem.
> Last Friday, ghc 9.0.1 was respecting those flags.  But today it is not.
> Before I try to figure out what is going on, I would *very* much
> appreciate learning if anyone else can duplicate the issue.
>
> Please try running GHC with an empty package database and let me know
> what happens.
>
>
> Norman
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
>


-- 
brandon s allbery kf8nh
allbery.b at gmail.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/ghc-devs/attachments/20210927/9b2ea96d/attachment.html>