#14972: MacOS panic on TH -------------------------------------+------------------------------------- Reporter: harpocrates | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.4.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: Compile-time Unknown/Multiple | crash or panic Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- I recently did a clean build of master (affdea82bb70e5a912b679a169c6e9a230e4c93e) and, while everything successfully finished, I'm getting panics every time I try to use this GHC for something that involves TH. For example: {{{#!hs {-# language TemplateHaskell #-} pure [] main = pure [] }}} Crashes with {{{ $ ./inplace/bin/ghc-stage2 th.hs [1 of 1] Compiling Main ( th.hs, th.o ) ghc-stage2: loadArchive: Failed reading header from `/Users/atheriault/Documents/code/ghc/libraries/integer-gmp/dist- install/build/gmp' ghc-stage2: panic! (the 'impossible' happened) (GHC version 8.5.20180325 for x86_64-apple-darwin): loadArchive "/Users/atheriault/Documents/code/ghc/libraries /integer-gmp/dist-install/build/gmp": failed Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} Normally I'd assume I haven't correctly configured something, yet I had no problem building and running GHC on this machine a month or so ago... -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14972 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler