On 2010 Dec 6, at 16:25, Duncan Coutts wrote:
Perhaps something like this would be better:
cabal: The program 'pkg-config' is required but it could not be found on the system (version 0.9.0 or later of pkg-config is required).
That looks pretty good. I'm having trouble finding any holes in it. There is also the issue (if my understanding is correct) that cabal install only needs pkg-config for some packages. So it is possible that someone has happily been using cabal install for some time, and then suddenly it doesn't work. And then they are left wondering what broke: "But I'm sure it worked last week, and I haven't changed anything" etc. At which point it could be helpful to be told that it's a circumstantial rather than a fundamental problem.