- Glasgow-haskell-users

Re: Building GHC 6.6.1 on Leopard/PPC
by Thorkil Naur 20 Dec '07

20 Dec '07

Hello, First of all: Welcome to the club. I hope you will find it enjoyable. And then to your questions: I have never tried to bootstrap GHC from C, so I am not really able to help with your specific problem. However, if you just want a running GHC, the binary distributions should provide an easy path. I have installed several binary GHC packages on various PPC Mac OS X machines and, generally, they work. You should, however, be aware of several, relatively recent, problems that have popped up that seem connected with GHC 6.8.1 and Leopard. See for example http://hackage.haskell.org/trac/ghc/ticket/1958. For example, I have a GHC 6.6.1 running on both 10.4 (Tiger) and 10.5 (Leopard) that I installed from http://haskell.org/ghc/dist/6.6.1/ghc-6.6.1-powerpc-apple-darwin.tar.bz2 (see http://haskell.org/ghc/download_ghc_661.html#macosxppc) Once you have a running binary GHC, you can start building (newer) GHC's from source distributions or darcs repositories. Feel free to write back, if this is not the right answer to your questions. Best regards Thorkil On Wednesday 19 December 2007 23:25, jcharum wrote: > > I've been trying to get a working GHC 6.6.1 build on my Leopard box with > little success. I am trying to follow the "Booting/porting from C (.hc) > files" instructions here: > > http://hackage.haskell.org/trac/ghc/wiki/Building/Porting > > When I build the HC file bundle, I get errors about rts/AutoApply_* stuff, > but I've read that they are not necessary fatal. > > When I try to build on the target system after unpacking the HC files > ('distrib/hc-build --prefix=<dir>'), I get the following error: > > ------------------------------------------------------------------------ > == make boot -f Makefile; > in /Users/jjc/Downloads/ghc-6.6.1/libraries/readline > ------------------------------------------------------------------------ > make[1]: *** No rule to make target `System/Console/Readline_hsc.c', needed > by `depend'. Stop. > Failed making boot in readline: 1 > make: *** [boot] Error 1 > > Any help is much appreciated. Not only would I like to get this building > for myself, but I would also like to contribute a bootstrap build for other > Leopard/MacPorts/PPC users. Let me know if I can provide any more > information to help diagnose the problem. > -- > View this message in context: http://www.nabble.com/Building-GHC-6.6.1-on-Leopard-PPC-tp14426649p14426649… > Sent from the Haskell - Glasgow-haskell-users mailing list archive at Nabble.com. > > _______________________________________________ > Glasgow-haskell-users mailing list > Glasgow-haskell-users(a)haskell.org > http://www.haskell.org/mailman/listinfo/glasgow-haskell-users >

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More spam problems on trac
by Tim Chevalier 20 Dec '07

20 Dec '07

It seems the new thing for spammers to do is to add spam text wrapped in the <p style=display:none> tag. For example, http://hackage.haskell.org/trac/ghc/wiki/WikiStart?action=diff&version=106 I don't know if anyone else has noticed this. Maybe it's time to require captchas for account creation or something? Cheers, Tim -- Tim Chevalier * catamorphism.org * Often in error, never in doubt "Research is what I'm doing when I don't know what I'm doing."--Wernher von Braun

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Re: [Haskell] Re: ANNOUNCE: GHC version 6.8.2
by Simon Marlow 20 Dec '07

20 Dec '07

Benjamin L. Russell wrote: > This fixed the problem, and on Windows XP > Professional, I was able to set GHCi to find .ghci in > %HOMEPATH%, which turned out to be c:\Documents and > Settings\<username>. > > However, I would like to override this setting, and > either have GHCi look for .ghci in %HOME%, as opposed > to %HOMEPATH% (so that this value is not automatically > set by the OS), or to set %HOMEPATH% itself to be > c:\home. > > However, when I go to the Control Panel, then to the > System applet, then to the Advanced tab, then click on > the Environment Variables button, and then create an > environmental variable called "HOMEPATH" (either local > or global), this setting does not override the default > setting for this environmental variable, and GHCi > still looks for .ghci in the default location > (c:\Documents and Settings\<username>). > > Does anybody know how to cause GHCi to look for .ghci > in c:\home? Create a .ghci file in c:\Documents And Settings\<user>, with the following contents: :cmd readFile "c:\\home\\.ghci" Cheers, Simon

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How do you get the process id out of the ProcessHandle in Win XP?
by John Vogel 20 Dec '07

20 Dec '07

Here is what I have tried: module Main where import System.Process -- using runInteractiveProcess import System.Posix.Types import System.Process.Internals import Control.Concurrent.MVar main = do (input,output,err,ph) <- runInteractiveProcess calc.exe" ([]) Nothing Nothing p <- Main.getPID ph putStrLn $ show p --- The output getPID :: ProcessHandle -> IO CPid getPID (ProcessHandle p) = do (OpenHandle pp) <- takeMVar p return (toPID pp) toPID :: PHANDLE -> CPid toPID ph = toEnum $ fromEnum ph --------------------------------------------------------------------------------------------------------------------------- But the CPid always returns some const value (like 1904 in cygwin; 1916 in cmd.exe) I think, I saw that CPid was a newtype of Ptr () So, currently I need to get the process id from CPid or something else. All help is appreciated. John

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C Preprocessor
by Bernd Brassel 20 Dec '07

20 Dec '07

Is it already a known problem that the preprocessor cannot cope with the whole set of possible string declarations? $ cat long1.hs {-# OPTIONS -cpp #-} s = "abc\ \defg" main = putStrLn s $ ghc long1.hs long1.hs:3:14: lexical error in string/character literal at character 'e' $ cat long2.hs s = "abc\ \defg" main = putStrLn s $ ghc long2.hs $ a.out abcdefg

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Re: [Haskell] Re: ANNOUNCE: GHC version 6.8.2
by Manuel M T Chakravarty 20 Dec '07

20 Dec '07

Jules Bean: > Manuel M T Chakravarty wrote: >> PS: Moreover, binaries produced by the above compiler will run on >> any Leopard box. > > That's great news. > > Can you add a note about how you achieved that to > > http://hackage.haskell.org/trac/ghc/ticket/1540 > > please? > > My previous attempts to distribute ghc-compiled softrware to other > mac users have always fallen foul of dependencies on gmp... I have added some remarks to that ticket, but it really should work out of the box now if you use my binary dist for Macs or with the HEAD. Manuel

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Building GHC 6.6.1 on Leopard/PPC
by jcharum 19 Dec '07

19 Dec '07

I've been trying to get a working GHC 6.6.1 build on my Leopard box with little success. I am trying to follow the "Booting/porting from C (.hc) files" instructions here: http://hackage.haskell.org/trac/ghc/wiki/Building/Porting When I build the HC file bundle, I get errors about rts/AutoApply_* stuff, but I've read that they are not necessary fatal. When I try to build on the target system after unpacking the HC files ('distrib/hc-build --prefix=<dir>'), I get the following error: ------------------------------------------------------------------------ == make boot -f Makefile; in /Users/jjc/Downloads/ghc-6.6.1/libraries/readline ------------------------------------------------------------------------ make[1]: *** No rule to make target `System/Console/Readline_hsc.c', needed by `depend'. Stop. Failed making boot in readline: 1 make: *** [boot] Error 1 Any help is much appreciated. Not only would I like to get this building for myself, but I would also like to contribute a bootstrap build for other Leopard/MacPorts/PPC users. Let me know if I can provide any more information to help diagnose the problem. -- View this message in context: http://www.nabble.com/Building-GHC-6.6.1-on-Leopard-PPC-tp14426649p14426649… Sent from the Haskell - Glasgow-haskell-users mailing list archive at Nabble.com.

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Re: [Haskell-cafe] Dynamic typing of polymorphic functions
by Alfonso Acosta 19 Dec '07

19 Dec '07

On Dec 19, 2007 9:13 PM, Neil Mitchell <ndmitchell(a)gmail.com> wrote: > > OK, If you managed to read until this point, you might have noticed > > that, due to the monomorphism restriction implied by Data.Typeable, it > > is impossible to build polymorphic processes. > > Tom Shackell had similar issues with passing code around at runtime. > As a result Yhc contains the Yhc.Dynamic module which gives you all > polymorphic dynamic typing. It's integrated into the compiler and > runtime system. Thanks for your answer Neil. >From your description it _seems_ to be exactly what I need (I coudn't reallly figure it out form the sources since its implementation seems to rely on Yhc internals I totally ignore). Are there any examples of use available? Even if Yhc.Dynamic turns out to be what I need, my implementation unfortunately depends on Template Haskell. Could any GHC guru point out if this would be feasible (and how complicated) to implement in GHC? Thanks, Fons

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Foreign C with pointers
by Luis Cabellos 19 Dec '07

19 Dec '07

Hi, I am creating a binding to an existing library (lib*.a) from Haskell. How can i bind a function that get a pointer? e.g: I have in the c library. int GetData( Data * d ); The steps that i need are: 1 - create the Data in Haskell 2 - create the foreign import sentence in a lib*.hs 3 - use the Data after the call Where can i get a good tutorial about FFI? I try http://www.haskell.org/hdirect/ffi.html but it's too general (need i pair of examples, i think) -- Thanks a lot, Luis Cabellos

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Haddock won't build on 6.8.1
by Deborah Goldsmith 17 Dec '07

17 Dec '07

I see this: $ runhaskell ./Setup.lhs build Preprocessing executables for haddock-0.8... shift/reduce conflicts: 5 Building haddock-0.8... src/Main.hs:49:7: Could not find module `System.Directory': it is a member of package directory-1.0.0.0, which is hidden Any ideas? Thanks, Deborah

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