sorry, ignore me - I assume it's #8696 and my tree is fairly old. I'll update. Simon From: ghc-devs [mailto:ghc-devs-bounces@haskell.org] On Behalf Of Simon Peyton Jones Sent: 17 April 2014 08:07 To: ghc-devs@haskell.org Subject: Link failure On 64-bit Linux I'm getting this in the link step for the template-haskell library: /usr/bin/ld: libraries/template-haskell/dist-install/build/Language/Haskell/TH/Syntax.dyn_o: relocation R_X86_64_PC32 against undefined symbol `templatezmhaskell_LanguageziHaskellziTHziSyntax_OccName_closure' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Bad value collect2: ld returned 1 exit status make[2]: *** [libraries/template-haskell/dist-install/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140416.so] Error 1 make[1]: *** [all_libraries/template-haskell] Error 2 make[1]: Leaving directory `/5playpen/simonpj/HEAD-1' My compiler is not vanilla HEAD, but I have changed only stuff in the Core simplifier, nothing in the back end. Does anyone have the faintest idea what is going on? It's extremely annoying because I can't make progress without working around it somehow. Thanks Simon