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Subject: Re: Can't link to libpopt
To: cygwin AT cygwin DOT com
References: <b0618068-98fd-c7f3-bdae-ac007e34ccc0 AT isotek DOT co DOT uk> <eb173e6b-e555-6bbe-b7ef-c47dcfd3c24e AT gmail DOT com>
From: Trevor Barton <tmb AT isotek DOT co DOT uk>
Message-ID: <53eadc51-bf62-fc00-a316-3c220bee6f8a@isotek.co.uk>
Date: Mon, 8 Jan 2018 18:53:13 +0000
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On 08/01/2018 18:43, Marco Atzeri wrote:
> On 08/01/2018 17:07, Trevor Barton wrote:
>> Hi,
>>
>> I am trying to use libpopt but I can't link to it using -lpopt to gcc 
>> because libpopt.a doesn't exist in /lib or /usr/lib.
>>
>> I have an up-to-date 64 bit installation and I have all of 
>> libpopt-common, libpopt-devel and libpopt0 installed at the current 
>> version 1.16.2.  In my /lib and /usr/lib directories I have 
>> libpopt.dll.a, but no libpopt.a, unlike, for example, libreadline, 
>> which has libreadline.a and libreadline.dll.a.
>>
>> I can link successfully using -lpopt.dll however.  I presume, but 
>> can't seem to find any information, that linking against libThing.a 
>> and libThing.dll.a, where both are available, gives wither a static 
>> or dynamic link?
>>
>> I always used to be able to link against libpopt.a, but I think that 
>> was always in an older 32bit installation, I may never have tried to 
>> build this program in the 64-bit environment.
>>
>> Can anyone give me any pointers please?  Can I generate libpopt.a 
>> somehow?  Or should it really be there and there is an error in the 
>> cygwin package?
>>
>> Cheers,
>> Trevor
>
> install popt-devel
>
> https://cygwin.com/cgi-bin2/package-cat.cgi?file=x86_64%2Fpopt-devel%2Fpopt-devel-1.16-1&grep=libpopt.a 
>

Thanks Marco.  However that's marked as obsolete in the installer and 
replaced by libpopt-devel.  Also the version for that is 1.16.1 I think, 
whereas he current version is 1.16.2.  The 1.16.2 version is empty and 
just shows an obsolete message on cygwin.com ...

https://cygwin.com/packages/x86_64/popt-devel/popt-devel-1.16-2

Trevor

-- 
Isotek Oil and Gas Ltd., 9 Clayton Wood Bank, Leeds, LS16 6QZ, UK.
Tel: +44 (113) 275 1339  Web: www.isotek.co.uk
Views expressed are my own and not necessarily those of Isotek Oil and Gas Ltd.


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