Making Windows executables...

[Seth Kurtzberg]

Juan Carlos Arevalo Baeza wrote:

>   Thanx! That's exactly what I needed. The swhich was undocumented! :-P
>
>   :-) I understand the caveats well enough. You can avoid the 
> exceptions very easily using this code:
>
> ---8<--------------------------------------
> import Foreign.C.Types
> import Foreign.C.String
>
> foreign import ccall unsafe "HsBase.h __hscore_open" c_open :: CString 
> -> CInt -> CInt -> IO CInt
> foreign import ccall unsafe "HsBase.h dup2" dup2 :: CInt -> CInt -> IO 
> CInt
>
> open fname oflag pmode = withCString fname $ \c_fname -> c_open 
> c_fname oflag pmode
>
> main =
>    fd <- open "nul" 2 0
>    dup2 fd 0
>    dup2 fd 1
>    dup2 fd 2

I guess Windows can make even Haskell programs look ugly.  Or at the 
very least esthetically unpleasing.  :)

>    ... rest of the program goes here.
> ---8<--------------------------------------
>
>   Suggestion for somebody: maybe we should add this (or something 
> such) as standard to the next version of GHC. I mean a proper switch 
> (--mk-gui or something such) and somehow setting the standard handles 
> like above when it's invoked.
>
> JCAB
>
> Duncan Coutts wrote:
>
>> On Sat, 2005-08-27 at 13:42 -0700, Juan Carlos Arevalo Baeza wrote:
>>  
>>
>>>   When compiling a haskell program under Windows, is there any way 
>>> to compile it as a GUI program instead of a console program?
>>>   
>>
>>
>> Yes, see the following FAQ from Gtk2Hs:
>>
>> http://haskell.org/gtk2hs/archives/2005/06/23/hiding-the-console-on-windows/ 
>>
>>
>> and do make sure you understand the caveats.
>>
>> Duncan
>>
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>>
>>  
>>
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