Bug#845377: gdc-6: libdl trouble again

[Iain Buclaw <ibuclaw@gdcproject.org>]

On 22 November 2016 at 23:37, Matthias Klose <doko@debian.org> wrote:
> Control: severity -1 important
>
> On 22.11.2016 22:21, Peter De Wachter wrote:
>> Package: gdc-6
>> Version: 6.2.1-4
>> Severity: serious
>> Justification: breaks other packages (ii-esu, tatan, dub)
>>
>> Hi,
>>
>> This upload has a bug very similar to #835255. The same test program
>> again fails to link:
>>
>> import std.datetime;
>> void main () { }
>>
>> $ gdc -o date date.d
>> /usr/lib/gcc/x86_64-linux-gnu/6/libgphobos.a(lt4-curl.o): In function `_D3std3net4curl7CurlAPI7loadAPIFZPv':
>> /build/gcc-6-N3r4h3/gcc-6-6.2.1/build/x86_64-linux-gnu/libphobos/src/../../../../src/libphobos/src/std/net/curl.d:3630: warning: Using 'dlopen' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
>> /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libdl.a(dlopen.o): In function `dlopen':
>> (.text+0x5): undefined reference to `__dlopen'
>> /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libdl.a(dlclose.o): In function `dlclose':
>> (.text+0x1): undefined reference to `__dlclose'
>> /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/libdl.a(dlsym.o): In function `dlsym':
>> (.text+0x5): undefined reference to `__dlsym'
>> collect2: error: ld returned 1 exit status
>
> known. Please pass -shared-libphobos for now. Still planning to make this the
> default.
>

Agreed.  I'll build the packages with this configuration and test locally.