dmd on ubuntu 64: how to unittest phobos with -m32?

[rsw0x via Digitalmars-d]

On Thursday, 6 August 2015 at 16:09:16 UTC, Andrei Alexandrescu 
wrote:
> On 8/6/15 10:37 AM, rsw0x wrote:
>> On Thursday, 6 August 2015 at 14:18:09 UTC, Andrei 
>> Alexandrescu wrote:
>>> [...]
>>
>> do you have gcc-multilib and g++multilib? It probably includes 
>> some
>> necessary libraries for 32 bit compilation.
>
> Yes to the first. Just installed the second as well.
>
> In the meantime I figured I need this:
>
> sudo apt-get install libcurl4-openssl-dev:i386
>
> However, when I tried to install it, I got:
>
> dpkg: error processing archive 
> /var/cache/apt/archives/libcurl4-openssl-dev_7.37.1-1ubuntu3.4_i386.deb (--unpack):
>  trying to overwrite shared '/usr/bin/curl-config', which is 
> different from other instances of package 
> libcurl4-openssl-dev:i386
>
> Does this mean libcurl cannot have both 32- and 64-bit builds 
> installed on the same machine?
>
>
> Andrei

Sounds weird. Sorry, I don't use ubuntu/debian.
Is your system fully up to date?