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<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif";mso-fareast-language:EN-US">Usually this is to do with stale .hi files<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif""> ghc-devs [mailto:ghc-devs-bounces@haskell.org]
<b>On Behalf Of </b>Gintautas Miliauskas<br>
<b>Sent:</b> 03 November 2014 16:31<br>
<b>To:</b> ghc-devs@haskell.org<br>
<b>Subject:</b> ghc panic during build<o:p></o:p></span></p>
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Just got this during a build:<o:p></o:p></p>
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"inplace/bin/ghc-stage1.exe" -hisuf hi -osuf o -hcsuf hc -static -H32m -O -Werror -Wall -H64m -O0 -this-package-key base_ESD4aQEEWwsHtYJVc1BwtJ -hide-all-packages -i -ilibraries/base/. -ilibraries/base/dist-install/build -ilibraries/base/dist-install/build/autogen
-Ilibraries/base/dist-install/build -Ilibraries/base/dist-install/build/autogen -Ilibraries/base/include -optP-DOPTIMISE_INTEGER_GCD_LCM -optP-include -optPlibraries/base/dist-install/build/autogen/cabal_macros.h -package-key ghcpr_BE58KUgBe9ELCsPXiJ1Q2r
-package-key integ_BcPVjqcazPNGsNFG4agFty -package-key rts -this-package-key base -XHaskell2010 -O2 -O -dcore-lint -fno-warn-deprecated-flags -fno-warn-tabs -no-user-package-db -rtsopts -odir libraries/base/dist-install/build -hidir libraries/base/dist-install/build
-stubdir libraries/base/dist-install/build -c libraries/base/./GHC/TypeLits.hs -o libraries/base/dist-install/build/GHC/TypeLits.o<o:p></o:p></p>
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ghc-stage1.exe: panic! (the 'impossible' happened)<o:p></o:p></p>
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(GHC version 7.9.20141031 for x86_64-unknown-mingw32):<o:p></o:p></p>
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Ix{Int}.index: Index (2053) out of range ((0,10))<o:p></o:p></p>
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<o:p> </o:p></p>
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Please report this as a GHC bug: <a href="http://www.haskell.org/ghc/reportabug">http://www.haskell.org/ghc/reportabug</a><o:p></o:p></p>
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libraries/base/<a href="http://ghc.mk:4">ghc.mk:4</a>: recipe for target 'libraries/base/dist-install/build/GHC/TypeLits.o' failed<o:p></o:p></p>
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<o:p> </o:p></p>
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I may have been building in a non-clean repository after a git pull though, could that have caused this?<o:p></o:p></p>
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-- <o:p></o:p></p>
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Gintautas Miliauskas<o:p></o:p></p>
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