Re: Failed to load interface for GHC.Integer.Type

On Mon, 9 Jun 2014 23:56:37 +0300 Sergei Trofimovich wrote:

On Mon, 09 Jun 2014 21:45:27 +0200 Joachim Breitner wrote:

...

Hi,

since http://git.haskell.org/ghc.git/commitdiff/1946922c61df427e59f8a00572fd4dd650... travis is complaining:

HC [stage 1] libraries/base/dist-install/build/GHC/Unicode.o-boot HC [stage 1] libraries/base/dist-install/build/Data/Coerce.o HC [stage 1] libraries/ghc-prim/dist-install/build/GHC/Debug.o

Top level: Failed to load interface for ‘GHC.Integer.Type’ There are files missing in the ‘integer-gmp’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. make[1]: *** [libraries/base/dist-install/build/Data/Coerce.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make: *** [all] Error 2

Does anyone have an idea what may be causing this?

A bit more context here is haddock started too early:

Writing utils/haddock/doc/haddock/invoking.html for chapter(invoking) cp libffi/build/inst/lib/libffi.a rts/dist/build/libCffi.a HC [stage 1] libraries/base/dist-install/build/GHC/IO.o-boot HC [stage 1] libraries/ghc-prim/dist-install/build/GHC/Classes.o Writing utils/haddock/doc/haddock/ch03s02.html for section Writing utils/haddock/doc/haddock/ch03s03.html for section HC [stage 1] libraries/integer-gmp/dist-install/build/GHC/Integer/GMP/Prim.o Writing utils/haddock/doc/haddock/ch03s04.html for section Writing utils/haddock/doc/haddock/ch03s05.html for section Writing utils/haddock/doc/haddock/hyperlinking.html for section(hyperlinking) Writing utils/haddock/doc/haddock/module-attributes.html for section(module-attributes) HC [stage 1] libraries/base/dist-install/build/GHC/Exception.o-boot HC [stage 1] libraries/ghc-prim/dist-install/build/GHC/CString.o Writing utils/haddock/doc/haddock/ch03s08.html for section Writing utils/haddock/doc/haddock/markup.html for chapter(markup) HC [stage 1] libraries/base/dist-install/build/GHC/Unicode.o-boot HC [stage 1] libraries/base/dist-install/build/Data/Coerce.o

Top level: Failed to load interface for ‘GHC.Integer.Type’ There are files missing in the ‘integer-gmp’ package, try running 'ghc-pkg check'. Use -v to see a list of the files searched for. make[1]: *** [libraries/base/dist-install/build/Data/Coerce.o] ...

I guess real fault is: http://ghc.haskell.org/trac/ghc/changeset/f31b042c25b9c51efdbe84c1cb6f65f495...

Or not. Looks like it's easy to reproduce as: $ make libraries/base/dist-install/build/Data/Coerce.o V=1 What is more interesting: ghc/libraries/base/Unsafe/Coerce.hs:

import GHC.Integer () -- for build ordering

Attached patch fixes the error, but I have no idea why. Maybe, NoImplicitPrelude is not enough and some types leak in here? Maybe Ian (CCed) remembers the story.

commit aba043a0a142ef0ee66ed0e6cbfe2a39c65d8792 Author: Ian Lynagh Date: Sun May 19 16:35:40 2013 +0100

Fix build order when building with integer-simple

The problem hasn't shown up with integer-gmp, but I can't see why it couldn't happen in that case too.

-- Sergei