#16051: Cross compilation broken under Hadrian -------------------------------------+------------------------------------- Reporter: bgamari | Owner: alpmestan Type: bug | Status: new Priority: highest | Milestone: 8.8.1 Component: Build System | Version: 8.7 (Hadrian) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by alpmestan): ghctags being gone, I don't have any problem getting the build to complete with this very simple patch: {{{#!diff diff --git a/hadrian/src/UserSettings.hs b/hadrian/src/UserSettings.hs index c92dd11d44..b6fc30bd90 100644 --- a/hadrian/src/UserSettings.hs +++ b/hadrian/src/UserSettings.hs @@ -59,4 +59,4 @@ successColour = mkSuccessColour (Dull Green) -- 'Stage1' compiler. Setting it to 'Stage3' will build the 'Stage3' -- compiler. Setting it to 'Stage0' will mean nothing gets built at all. finalStage :: Stage -finalStage = Stage2 +finalStage = Stage1 }}} (this is a setting Matthew introduced somewhat recently, documented in hadrian's docs) With this in place, a simple `hadrian/build.sh -j4` builds stage 1 to completion. However, trying to build this trivial Haskell program then fails: {{{#!hs main = putStrLn "hello" }}} with {{{#!sh $ _build/stage0/bin/aarch64-unknown-linux-gnu-ghc hello.hs -o hello [1 of 1] Compiling Main ( hello.hs, hello.o ) hello.hs:1:1: error: Bad interface file: /nix/store/8h3fdgpq66w8kxzxn49s706505a7ihnr- ghc-8.4.3/lib/ghc-8.4.3/base-4.11.1.0/Prelude.hi mismatched interface file versions (wanted "80720190211", got "8043") | 1 | main = putStrLn "hello" | ^ }}} The cross-compiler ends up looking at the boot compiler's interface files instead of its own. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16051#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler