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-rw-r--r--gnu/packages/haskell-xyz.scm8
1 files changed, 8 insertions, 0 deletions
diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm
index 052162b66d..4b092299be 100644
--- a/gnu/packages/haskell-xyz.scm
+++ b/gnu/packages/haskell-xyz.scm
@@ -7570,6 +7570,14 @@ DSLs, etc.")
(base32
"0qjs0v1ny52w51n5582d4z8wy9h6n0zw1xb5dh686ff5wadflgi8"))))
(build-system haskell-build-system)
+ (arguments
+ `(#:phases
+ (modify-phases %standard-phases
+ (add-before 'configure 'update-constraints
+ (lambda _
+ (substitute* "options.cabal"
+ (("chell >= 0\\.4 && < 0\\.5") "chell >= 0.4 && < 0.6"))
+ #t)))))
(inputs
`(("ghc-monads-tf" ,ghc-monads-tf)
("ghc-chell" ,ghc-chell)