#9862: defined but not used errors on Solaris/SPARC -------------------------------------+------------------------------------- Reporter: ezyang | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (NCG) | Version: 7.8.2 Keywords: | Operating System: Solaris Architecture: sparc | Type of failure: Incorrect Difficulty: Unknown | warning at compile-time Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- I recently tried building GHC on Solaris and I got a ton of these files when compiling the bootstrapping copy of Cabal: {{{ "/afs/sipb/user/ezyang/ghc-7.8.2/usr/bin//ghc" -H32m -O -Werror -Wall -H64m -O0 \ -optc-Werror -optc-Wall -optc-fno-stack-protector \ \ --make utils/ghc-cabal/Main.hs -o utils/ghc- cabal/dist/build/tmp/ghc-cabal \ -no-user-package-db \ -Wall -fno-warn-unused-imports -fno-warn-warnings- deprecations \ -DCABAL_VERSION=1,21,1,0 \ -DBOOTSTRAPPING \ -odir bootstrapping \ -hidir bootstrapping \ -ilibraries/Cabal/Cabal \ -ilibraries/binary/src -DGENERICS \ -ilibraries/filepath \ -ilibraries/hpc \ -w "rm" -f compiler/stage1/build/Config.hs Creating compiler/stage1/build/Config.hs ... "rm" -f utils/ghc-pkg/dist/build/Version.hs echo "module Version where" >> utils/ghc- pkg/dist/build/Version.hs echo "version, targetOS, targetARCH :: String" >> utils/ghc- pkg/dist/build/Version.hs echo "version = \"7.9.20141204\"" >> utils/ghc- pkg/dist/build/Version.hs echo "targetOS = \"solaris2\"" >> utils/ghc- pkg/dist/build/Version.hs echo "targetARCH = \"sparc\"" >> utils/ghc-pkg/dist/build/Version.hs done. [ 1 of 86] Compiling Distribution.Compat.CreatePipe ( libraries/Cabal/Cabal/Distribution/Compat/CreatePipe.hs, bootstrapping/Distribution/Compat/CreatePipe.o ) cc1: warnings being treated as errors /tmp/ghc322370_0/ghc322370_21.hc: In function ‘s1xM_entry’: /tmp/ghc322370_0/ghc322370_21.hc:21:0: error: label ‘_c312’ defined but not used /tmp/ghc322370_0/ghc322370_21.hc: In function ‘s1xK_entry’: /tmp/ghc322370_0/ghc322370_21.hc:63:0: error: label ‘_c31b’ defined but not used }}} Maybe the 7.8.2 codegen which I bootstrapped from is buggy in some way? It makes it mildly difficult to actually validate. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9862 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler