#8205: the 'impossible' happened : expectJust block_order ----------------------------------------+---------------------------------- Reporter: erikd | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Building GHC failed | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: ----------------------------------------+---------------------------------- Comment (by jstolarek): Thanks for your `build.mk`. Unfortunately I can't reproduce this on my Linux machine - it seems that the problem only happens on Macs.
if I revert commit d61c3ac186c94021c851f7a2a6d20631e35fc1ba the stage1 build completes and then fails during the stage2 build.
This is most strange. If stage2 fails after reverting that commit this would mean that you are experiencing some other bug. Did you clean the build tree after reverting the commit? Also, how does stage2 fail? What error do you get? One thing you could do to help us in debugging this is trying to build HEAD and when you get a build failure, you could re-run the last command with `-ddump-cmm -dcmm-lint` added to the command line. So this would be something like this: {{{ "inplace/bin/ghc-stage1" -hisuf dyn_hi -osuf dyn_o -hcsuf dyn_hc -fPIC -dynamic -H32m -O -Werror -Wall -H64m -O0 -hide-all-packages -i -iutils/hpc/. -iutils/hpc/dist-install/build -iutils/hpc/dist-install/build/autogen -Iutils/hpc/dist-install/build -Iutils/hpc/dist-install/build/autogen -optP-include -optPutils/hpc/dist-install/build/autogen/cabal_macros.h -package array-0.4.0.2 -package base-4.7.0.0 -package containers-0.5.2.1 -package directory-1.2.0.1 -package hpc-0.6.0.1 -XHaskell98 -XCPP -no-user-package-db -rtsopts -fwarn-tabs -odir utils/hpc/dist- install/build -hidir utils/hpc/dist-install/build -stubdir utils/hpc/dist- install/build -c utils/hpc/dist-install/build/HpcParser.hs -o utils/hpc/dist-install/build/HpcParser.dyn_o -ddump-cmm -dcmm-lint }}} If you could upload output from this command this would tell us why this is happening. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8205#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler