[Debian-med-packaging] Bug#826048: Faulty CMake file impairs compiling against GDCM

[Carnë Draug]

On 17 October 2016 at 14:40, Mathieu Malaterre <malat at debian.org> wrote:
> On Mon, Oct 17, 2016 at 3:19 PM, Carnë Draug <carandraug at octave.org> wrote:
>> On 17 October 2016 at 07:40, Mathieu Malaterre <malat at debian.org> wrote:
>>> Control: tags -1 moreinfo
>>>
>>> On Fri, Oct 14, 2016 at 5:29 PM, Carne Draug <carandraug at octave.org> wrote:
>>>> Package: libgdcm2-dev
>>>> Version: 2.6.6-1
>>>> Followup-For: Bug #826048
>>>>
>>>> I'm not 100% sure if this is the same issue I'm having but I think
>>>> so, so I' commenting here instead of opening a new one.
>>>>
>>>> The following was working fine in Debian Wheezy and returned the
>>>> expected lib flags:
>>>>
>>>>     cmake --find-package \
>>>>       -DNAME=GDCM \
>>>>       -DCOMPILER_ID=GNU \
>>>>       -DLANGUAGE=CXX \
>>>>       -DMODE=LINK
>>>
>>> Does it work if you change into -DMODE=COMPILE ?
>>
>> Yes. Getting the compile flags works fine:
>>
>> $ cmake --find-package \
>>         -DNAME=GDCM \
>>         -DCOMPILER_ID=GNU \
>>         -DLANGUAGE=CXX \
>>         -DMODE=COMPILE
>> -I/usr/include/gdcm-2.6
>>
>> $ cmake --find-package \
>>         -DNAME=GDCM \
>>         -DCOMPILER_ID=GNU \
>>         -DLANGUAGE=CXX \
>>         -DMODE=LINK
>>
>>
>> The last command, -DMODE=LINK, simply returns an empty line.
>
> Well it is in fact returning an empty string, so I would not consider
> this a bug. As far as I understand the link line for GDCM should not
> add anything. In the past (previous cmake version) it used to return
> "-rdynamic". That does not seems required anymore.
>
> GDCM libs are installed in the default path, so your linker should be
> able to find them without tweaking the link line.
>

I could swear that in Wheezy this also returned all the multiple -lgdcm*
but after I checked I was wrong.  Indeed it only returned -rdynamic.

Thank you for the attention and apologies for all the noise.