Commit cd2dc9e2 authored by Edward Z. Yang's avatar Edward Z. Yang Committed by Ben Gamari

ghc-pkg --enable-multi-instance should not complain about case sensitivity.

Test Plan: validate

Reviewers: simonmar, bgamari, austin

Reviewed By: bgamari, austin

Subscribers: thomie

Differential Revision:
parent 0c823af8
......@@ -1665,7 +1665,8 @@ checkDuplicates db_stack pkg multi_instance update = do
uncasep = map toLower . display
dups = filter ((== uncasep pkgid) . uncasep) (map sourcePackageId pkgs)
when (not update && not (null dups)) $ verror ForceAll $
when (not update && not multi_instance
&& not (null dups)) $ verror ForceAll $
"Package names may be treated case-insensitively in the future.\n"++
"Package " ++ display pkgid ++
" overlaps with: " ++ unwords (map display dups)
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