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-rw-r--r--gnu/packages/haskell-xyz.scm20
1 files changed, 20 insertions, 0 deletions
diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm
index 3503b783d7..3cf6a9f02b 100644
--- a/gnu/packages/haskell-xyz.scm
+++ b/gnu/packages/haskell-xyz.scm
@@ -8896,6 +8896,26 @@ suitable for inclusion in pandoc YAML metadata.")
(base32
"1d6ygq991ddria71l7hg9yd7lq94sjy4m71rdws1v8hq943c4d0q"))))
(build-system haskell-build-system)
+ (arguments
+ `(#:phases
+ (modify-phases %standard-phases
+ ;; None of the directory names are actually used. By generating a
+ ;; simpler module without references to store names we avoid
+ ;; introducing references in the pandoc executable.
+ (add-after 'unpack 'create-simple-paths-module
+ (lambda _
+ (call-with-output-file "Paths_pandoc_types.hs"
+ (lambda (port)
+ (format port "\
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE NoRebindableSyntax #-}
+{-# OPTIONS_GHC -fno-warn-missing-import-lists #-}
+module Paths_pandoc_types (version) where
+import Data.Version (Version(..))
+version :: Version
+version = Version [~a] []
+" (string-map (lambda (chr) (if (eq? chr #\.) #\, chr)) ,version))))
+ #t)))))
(inputs
`(("ghc-syb" ,ghc-syb)
("ghc-aeson" ,ghc-aeson)