HOME: getEnv: does not exist
Hi all, when I try to use runghc to execute cgi scripts in apache (on redhat linux), they all fail with with the message HOME: getEnv: does not exist. I assume this means that GHC is trying to find the HOME dir of the user for some reason, and fails since apache runs as nobody. Could someone shed some light on this matter for me? #!/usr/bin/runghc main = do putStrLn Content-type: application/xhtml putStrLn Content-length: 5\n putStrLn Hello Thanks, /Niklas ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: HOME: getEnv: does not exist
Niklas Broberg [EMAIL PROTECTED] writes: when I try to use runghc to execute cgi scripts in apache (on redhat linux), they all fail with with the message HOME: getEnv: does not exist. I assume this means that GHC is trying to find the HOME dir of the user for some reason, and fails since apache runs as nobody. Could someone shed some light on this matter for me? I think runghc is acting like GHCi, and trying to read the file $HOME/.ghci on startup. Regards, Malcolm ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
runghc badly broken
Hi all, I'm trying to use runghc (6.4 release version, redhat linux), but it appears to be badly broken. It only processes the first argument given to it, so while --- runghc Foo.hs hello with Foo.hs being simply main = putStrLn hello --- works just fine, while for instance --- runghc -v1 Foo.hs Loading package base-1.0 ... linking ... done. interactive:1:78: Failed to load interface for `Main': Could not find module `Main': it is not a module in the current program, or in any known package. Leaving GHCi. --- manages to be 1-verbose but doesn't find the file, and --- runghc Foo.hs -v1 hello --- executes the file alright, but forgets verbosity. I can't imagine this is the intended behavior? /Niklas ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: HOME: getEnv: does not exist
I think runghc is acting like GHCi, and trying to read the file $HOME/.ghci on startup. Thanks, that may well be the case. Too bad you can't tell it not to, see my other post about runghc and flags. :-( /Niklas ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: HOME: getEnv: does not exist
Malcolm Wallace [EMAIL PROTECTED] writes: I think runghc is acting like GHCi, and trying to read the file $HOME/.ghci on startup. I toyed with this, and it seems like runghc is forking off a ghc process, which then tries to read .ghci (and possibly .inputrc) from the $HOME directory. Unfortunately, while runghc apparently parses -ignore-dot-ghci (i.e. it refuses illegal options), it later on seems to treat it's a source file to run. As far as I can tell. -kzm -- If I haven't seen further, it is by standing in the footprints of giants ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: HOME: getEnv: does not exist
when I try to use runghc to execute cgi scripts in apache (on redhat linux), they all fail with with the message HOME: getEnv: does not exist. I assume this means that GHC is trying to find the HOME dir of the user for some reason, and fails since apache runs as nobody. Could someone shed some light on this matter for me? The same seems to be the case with ghc itself, not only runghc. Giving the flags -ignore-dot-ghci and -no-user-package-conf does not solve the problem, I still get the same error. /Niklas ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: HOME: getEnv: does not exist
when I try to use runghc to execute cgi scripts in apache (on redhat linux), they all fail with with the message HOME: getEnv: does not exist. I assume this means that GHC is trying to find the HOME dir of the user for some reason, and fails since apache runs as nobody. Could someone shed some light on this matter for me? The same seems to be the case with ghc itself, not only runghc. Giving the flags -ignore-dot-ghci and -no-user-package-conf does not solve the problem, I still get the same error. Alright, after digging the the ghc source I found this to be a bug that has been remedied in the current cvs HEAD. I guess it remains for me to install a cvs version then. /Niklas ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: runghc badly broken
I'm trying to use runghc (6.4 release version, redhat linux), but it appears to be badly broken. It only processes the first argument given to it... [snip] As a friend pointed out to me, some of this behavior may not be so strange. Clearly, if you give arguments _after_ the specified source file, you expect these to be arguments to that source file and not to runghc itself. Thus the example --- runghc Foo.hs -v1 hello --- executes as expected, since Foo.hs makes no use of -v1. That leaves the other case, when the argument(s) is given _before_ the file argument. It's obviously possible to give flags to runghc, shown by runghc being verbose in the example --- runghc -v1 Foo.hs Loading package base-1.0 ... linking ... done. interactive:1:78: Failed to load interface for `Main': Could not find module `Main': it is not a module in the current program, or in any known package. Leaving GHCi. --- but only the first one is processed. IMHO the preferred behavior is that any arguments given before the single file argument is given to runghc itself, while any given after the file argument is given to the script in that file. Comments? /Niklas ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Partial application of type constructors?
GHC 6.4 objects to the following simple program, pointing to the partial
application of the type constructor AddL. Is there a work-around?
{-# OPTIONS -fglasgow-exts #-}
data LMap a b
type AddL arr a b = a `arr` LMap a b
data DFunA arr a b = DFunA (a `arr` b) (DFunA (AddL arr) a b)
The complete error message:
Type synonym `AddL' should have 3 arguments, but has been given 1
When checking the data constructor:
forall arr a b. DFunA (arr a b) (DFunA (AddL arr) a b)
In the data type declaration for `DFunA'
Is there a serious difficulty with handling partial type applications?
- Conal
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