On Jan 10, 2010, at 06:07 , Dominic Steinitz wrote:

Probably no-one has ever built happy on a machine without perl so this has never been noticed. I think it's more polite to fail at the

More likely, it's because until fairly recently ghc required perl (for the Evil Mangler). -- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery@kf8nh.com system administrator [openafs,heimdal,too many hats] allbery@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH

On Sun, 2010-01-10 at 11:07 +0000, Dominic Steinitz wrote:

Probably no-one has ever built happy on a machine without perl so this has never been noticed. I think it's more polite to fail at the configure stage rather than the build stage. In the cabal file I think we should have

I've been meaning for some time to exorcise perl from the happy build. The little bit of substituting could fairly easily be done in Haskell code in the Setup.hs rather than calling perl. As Neil says, this would also help Windows users. Perhaps someone else has the time to give that a go. In the mean time "build-tools: perl" is of course correct. Duncan