#9955: ghc-stage1 compiles with bootstrapping ghc package, not the built one -------------------------------------+------------------------------------- Reporter: ezyang | Owner: Type: bug | Status: new Priority: highest | Milestone: 7.10.1 Component: Build | Version: 7.11 System | Operating System: Unknown/Multiple Keywords: | Type of failure: Incorrect result Architecture: | at runtime Unknown/Multiple | Blocked By: Test Case: | Related Tickets: Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Steps to reproduce: Build GHC using 7.10 as the bootstrapping compiler. Now check which GHC package stage 1 Main.hi was linked against, e.g. using `--show-iface`: {{{ [ezyang@hs01 ghc-validate2]$ ../ghc-7.10/inplace/bin/ghc-stage2 --show- iface ghc/stage1/build/Main.hi ... package dependencies: array-0.5.0.1 base-4.8.0.0 binary-0.7.2.3 bin-package-db-0.0.0.0 bytestring-0.10.6.0 containers-0.5.6.2 deepseq-1.4.0.0 directory-1.2.1.1 filepath-1.3.1.0 ghc-7.10.0.20141223 ghc-prim-0.3.1.0 hoopl-3.10.0.2 hpc-0.6.0.2 integer-gmp-1.0.0.0 process-1.2.1.0 time-1.5.0.1 transformers-0.4.2.0 unix-2.7.1.0 }}} Bad news! I think I introduced bug when I made GHC a wired in package: consequently when we ask GHC to link against a specific version of the GHC package, this flag is ignored. I don't actually know what the right way to fix this is, but we'll have to figure something out here. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9955 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler