Re: Glasgow Haskell on different versions of Linux

2004-06-09 Thread Volker Stolz
In local.glasgow-haskell-users, you wrote: Christian Maeder wrote: What is ctype.h good for? A good question. Its only use seems to be in ghc/rts/RtsFlags.c where it is used for functions like isdigit and isspace for decoding the RTS flags. Maybe it should be retired altogether. I'm

compiling ghc-6.2.1

2004-06-09 Thread Christian Maeder
Christian Maeder wrote: [EMAIL PROTECTED] - rpm -q gcc gcc-3.3.3-41 make (in ghc-6.2.1) fails (in ghc/GC.c) with: GC.c: In function `threadLazyBlackHole': GC.c:4049: warning: use of cast expressions as lvalues is deprecated make[2]: *** [GC.o] Fehler 1 The actual error not messed up by warnings

Re: Glasgow Haskell on different versions of Linux

2004-06-09 Thread Glynn Clements
Volker Stolz wrote: What is ctype.h good for? A good question. Its only use seems to be in ghc/rts/RtsFlags.c where it is used for functions like isdigit and isspace for decoding the RTS flags. Maybe it should be retired altogether. I'm rather puzzled how this works if ctype.h

Re: Glasgow Haskell on different versions of Linux

2004-06-09 Thread George Russell
Volker Stolz wrote (snipped): The functions are C89, so they should be present *somewhere* in libc anywhere. Yes, you're right. Normally isspace and friends are used as macros, but ANSI C requires them to be also available as functions so they must be exported that way. Therefore if you don't

Re: compiling ghc-6.2.1

2004-06-09 Thread Christian Maeder
Christian Maeder wrote: The actual error not messed up by warnings is: ../../ghc/compiler/ghc-inplace -optc-O -optc-w -optc-Wall -optc-W -optc-Wstrict-prototypes -optc-Wmissing-prototypes -optc-Wmissing-declarations -optc-Winline -optc-Waggregate-return -optc-Wbad-function-cast

Finalizers and FFI

2004-06-09 Thread Gracjan Polak
Hi all, I would like to attach finalizer (written in Haskell) to some pointer. When the pointer won't be needed any more, finalizer should run. So here is the code: module Main where import Foreign.Ptr import Foreign.ForeignPtr import Foreign.Marshal.Alloc foreign import stdcall wrapper mkFin

Re: Finalizers and FFI

2004-06-09 Thread Arjan van IJzendoorn
HI Gracjan, I would like to attach finalizer (written in Haskell) to some pointer. When the pointer won't be needed any more, finalizer should run. So here is the code: import Foreign.ForeignPtr I couldn't get finalisers to work either with the newForeignPtr from this module. I didn't know how

Re: Glasgow Haskell on different versions of Linux

2004-06-09 Thread Christian Maeder
I wrote: since version 6.2 we have 2 binary distributions for (generic) linux: for glibc 2.2 and glibc 2.3 Maybe this is no longer necessary. I've produced an installation (under glibc 2.2) that runs under glibc 2.2 and glibc 2.3. I've now also successfully installed ghc-6.2.1 from source under

Re: Finalizers and FFI

2004-06-09 Thread Alastair Reid
import Foreign.ForeignPtr I couldn't get finalisers to work either with the newForeignPtr from this module. I didn't know how to create a proper FunPtr. You create a FunPtr using foreign import: foreign import ccall malloc.h free free_ptr :: FunPtr (Ptr a - IO ()) In Foreign.Concurrent

GMP

2004-06-09 Thread John Meacham
I was curious what the best way would be to access the various useful GMP functions which are not exported for Integers. I was thinking of making my own (strict) Integer type, but it would be much easier if I can just use the FFI to import the required functions and get at the mpz_t inside

Data.Dynamic and dynamically loaded code

2004-06-09 Thread Donald Bruce Stewart
(lengthy) Hey, In the hs-plugins library I'm using Data.Dynamic to provide runtime type checking of plugin values when they are loaded. There is a problem, however: when using fromDyn/fromDynamic to check the type of the plugin's value against the type the application loading the plugin expects,