Problem compiling 6.8.1 extralibs

Duncan Coutts duncan.coutts at
Wed Nov 7 12:41:36 EST 2007

On Wed, 2007-11-07 at 11:50 -0500, Seth Kurtzberg wrote:
> Run:
> 	ghc-pkg list
> See what it thinks about the status of happy.

happy is a program. ghc-pkg doesn't know about it.

> i'm having some difficulties compiling the 6.8.1 extralibs on a Mandriva 
> 2007.0 box. Despite happy 1.15 being installed (with the happy binary 
> in /usr/bin/), i get the following error:
> 	Preprocessing library haskell-src-
> 	Setup: The program happy is required but it could not be found
> 	make[1]: *** [haskell-src/GNUmakefile] Error 1
> 	make[1]: Leaving directory `/usr/src/ghc-6.8.1/libraries'
> 	make: *** [stage1] Error 2 
> 	Command exited with non-zero status 2
> Any suggestions as to how to fix this would be greatly appreciated. :-)

Install happy from

Note that happy 1.17 needs Cabal-1.2 and 1.16 needs Cabal-1.1.6.

Alternatively, don't build the extralibs at the same time as ghc and
install just the ones you need individually later. They're all available
on hackage.


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