#12474: Regression: Syntax error in -ddump-minimal-imports for records in GHC 8.0 -------------------------------------+------------------------------------- Reporter: nh2 | Owner: Type: bug | Status: new Priority: normal | Milestone: 8.0.2 Component: Compiler | Version: 8.0.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- I found a bug in GHC 8.0.1. File: {{{ import Data.Version main = print (versionBranch undefined, versionTags undefined) }}} Run: {{{ ~/.stack/programs/x86_64-linux/ghc-8.0.1/bin/ghc --make Main.hs -ddump- minimal-imports && cat Main.imports import Data.Version ( Version(versionTags versionBranch) ) }}} See how there's a comma missing after `versionTags`? This happens for all record functions. It works fine in GHC 7.10.3: {{{ ~/.stack/programs/x86_64-linux/ghc-7.10.3/bin/ghc --make Main.hs -ddump- minimal-imports && cat Main.imports import Data.Version ( Version(versionBranch, versionTags) ) }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12474 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler