[Haskell-cafe] Re: Curl error message

Henk-Jan van Tuyl hjgtuyl at chello.nl
Fri Jul 24 19:09:15 EDT 2009


On Fri, 24 Jul 2009 21:16:15 +0200, Henk-Jan van Tuyl <hjgtuyl at chello.nl>  
wrote:

> On Tue, 21 Jul 2009 09:39:59 +0200, silent_stream  
> <silent_stream at 126.com> wrote:
>
>> When I compile curl-1.3.5 on Windows xp. I run the prompt "runghc  
>> Setup.hs configure " I got the following error
>> Setup.hs: Missing dependency on a foreign library:
>> * Missing C library: curl
>> This problem can usually be solved by installing the system package that
>> provides this library (you may need the "-dev" version). If the library  
>> is
>> already installed but in a non-standard location then you can use the  
>> flags
>> --extra-include-dirs= and --extra-lib-dirs= to specify where it is.
>> I don't know how to fix this problem. Who knows? Please come to help me  
>> .
>
> This message means that the curl package depends on the curl package  
> written in C;
> to get the C curl package, go to http://curl.haxx.se/download.html and  
> download the
> proper package (for example
>    http://curl.haxx.se/download/curl-7.19.5-win32-ssl-sspi.zip
> ) and unpack it into a directory with no space in the path name, e.g.:
>    C:\temp\curl-7.19.5
>
> If you do not have MingW/MSYS installed, do it now[1], you will need it  
> for
> other packages as well.
>
> Open a DOS shell and go to the curl C package directory, give command:
>    make
> ; it will take several minutes to build.
> Copy the contents of directory
>    C:\temp\curl-7.19.5\include\curl
> to a directory where you collect .h files for linking, e.g.:
>    C:\usr\local\include\curl
> Copy the contents of directory
>    C:\temp\curl-7.19.5\lib\.libs
> to a directory where you collect library files for linking, e.g.:
>    C:\usr\local\lib\curl
>
> To let the compiler find the necessary files, set environment variables:
>    set C_INCLUDE_PATH=C:\usr\local\include
>    set LIBRARY_PATH=C:\usr\local\lib;C:\usr\local\lib\curl
>
> Now you will be able to compile the Haskell curl package.
>
>
> [1] http://www.haskell.org/haskellwiki/Windows#Tools_for_compilation
>
>

The Haskell curl package must also be in a directory without spaces in the  
name; the script used for installation cannot handle spaces in path. After  
moving the package to C:\temp, the package installs.

-- 
Met vriendelijke groet,
Henk-Jan van Tuyl


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