#15758: hsc2hs broken due to incorrect argument passing to the hsc2hs executable -------------------------------------+------------------------------------- Reporter: osa1 | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 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: -------------------------------------+------------------------------------- Currently packages with .hsc files can't be built with GHC HEAD on some systems becuase of a problem in hsc2hs wrapper script. I don't understand the problem good enough, but we did some debugging with hvr today and he asked me to file a ticket. Here's how to reproduce: {{{ regex-posix-0.95.2 $ cabal new-build --with- ghc=/home/omer/haskell/ghc/inplace/bin/ghc-stage2 Warning: Unknown/unsupported 'ghc' version detected (Cabal 2.4.0.1 supports 'ghc' version < 8.7): /home/omer/haskell/ghc/inplace/bin/ghc-stage2 is version 8.7.20181017 Warning: The package list for 'hackage.haskell.org' is 22 days old. Run 'cabal update' to get the latest list of available packages. Resolving dependencies... Build profile: -w ghc-8.7.20181017 -O1 In order, the following will be built (use -v for more details): - regex-posix-0.95.2 (lib:regex-posix) (first run) Warning: regex-posix.cabal:6:1: The field "build-type" is specified more than once at positions 6:1, 19:1 Configuring regex-posix-0.95.2... Preprocessing library for regex-posix-0.95.2.. hsc2hs: @/home/omer/haskell/regex-posix-0.95.2/dist- newstyle/build/x86_64-linux/ghc-8.7.20181017/regex- posix-0.95.2/build/Text/Regex/Posix/hsc2hs-response17101-2.txt: openBinaryFile: does not exist (No such file or directory) }}} As far as I understand, the problem is that the script runs `hsc2hs -- @foo` instead of `hsc2hs @foo`. Hopefully hvr will correct if I misunderstood. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15758 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler