update windows NUL for ghc 8.6.1
This should also work with older ghc, since the path is a windows device namespace path.
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1 changed files with 2 additions and 1 deletions
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@ -249,7 +249,8 @@ devNull :: FilePath
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#ifndef mingw32_HOST_OS
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#ifndef mingw32_HOST_OS
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devNull = "/dev/null"
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devNull = "/dev/null"
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#else
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#else
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devNull = "NUL"
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-- Use device namespace to prevent GHC from rewriting path
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devNull = "\\.\NUL"
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#endif
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#endif
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-- | Extract a desired handle from createProcess's tuple.
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-- | Extract a desired handle from createProcess's tuple.
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