#11604: Build system fails after submodule update -------------------------------------+------------------------------------- Reporter: niteria | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Build System | Version: 8.1 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 thomie): I did not manage to reproduce this issue, using the steps from comment:6. The only difference is that I'm using 7.10.3 instead of 7.10.2. Could that be it? I did see this, but disabled it by adding `libraries/transformers_dist- install_EXTRA_HC_OPTS += -Wno-orphan` to `mk/warnings.mk`, as suggested in #11600. {{{ "inplace/bin/ghc-stage1" -hisuf hi -osuf o -hcsuf hc -static -O0 -H64m -Wall -Werror -this-unit-id transformers-0.5.2.0 -hide-all-packages -i -ilibraries/transformers/. -ilibraries/transformers/dist-install/build -ilibraries/transformers/dist-install/build/autogen -Ilibraries/transformers/dist-install/build -Ilibraries/transformers/dist- install/build/autogen -Ilibraries/transformers/. -optP-include -optPlibraries/transformers/dist-install/build/autogen/cabal_macros.h -package-id base-4.9.0.0 -XHaskell98 -O0 -no-user-package-db -rtsopts -Wno-unused-matches -Wno-unused-imports -Wno-redundant-constraints -Wno- deprecated-flags -Wnoncanonical-monad-instances -odir libraries/transformers/dist-install/build -hidir libraries/transformers /dist-install/build -stubdir libraries/transformers/dist-install/build -dynamic-too -c libraries/transformers/./Control/Monad/Trans/Error.hs -o libraries/transformers/dist-install/build/Control/Monad/Trans/Error.o -dyno libraries/transformers/dist- install/build/Control/Monad/Trans/Error.dyn_o libraries/transformers/Control/Monad/Trans/Error.hs:95:1: warning: Orphan instance: instance [safe] Error e => Alternative (Either e) To avoid this move the instance declaration to the module of the class or of the type, or wrap the type with a newtype and declare the instance on the new type. libraries/transformers/Control/Monad/Trans/Error.hs:100:1: warning: Orphan instance: instance [safe] Error e => MonadPlus (Either e) To avoid this move the instance declaration to the module of the class or of the type, or wrap the type with a newtype and declare the instance on the new type. }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11604#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler