So I am trying to unittest phobos in its 32-bit build on a Ubuntu64 machine. I installed these additional packages:

sudo apt-get install libc6-dev-i386 libcurl3:i386

When I try to unittest a phobos module, e.g.:

make -f posix.mak MODEL=32 std/conv.test

I get:

/usr/bin/ld: cannot find -lcurl

What do I need to do to link libcurl/32 properly on my 64-bit platform? I've searched around for a while, no avail.


Thanks,

Andrei

On 06/08/15 16:18, Andrei Alexandrescu wrote:
> So I am trying to unittest phobos in its 32-bit build on a Ubuntu64
> machine. I installed these additional packages:
>
> sudo apt-get install libc6-dev-i386 libcurl3:i386
>
> When I try to unittest a phobos module, e.g.:
>
> make -f posix.mak MODEL=32 std/conv.test
>
> I get:
>
> /usr/bin/ld: cannot find -lcurl
>
> What do I need to do to link libcurl/32 properly on my 64-bit platform?
> I've searched around for a while, no avail.

Is the path were the 32bit libraries are installed in the standard search path? Otherwise add them, I'm guessing it's /usr/lib32 or something like that.

BTW, the :i386 packages have never worked properly for me (they ended up uninstalling the whole GUI). I install the "ia32-libs" and "gcc-multilib" packages.

-- 
/Jacob Carlborg

On Thursday, 6 August 2015 at 14:18:09 UTC, Andrei Alexandrescu wrote:
> So I am trying to unittest phobos in its 32-bit build on a Ubuntu64 machine. I installed these additional packages:
>
> sudo apt-get install libc6-dev-i386 libcurl3:i386
>
> When I try to unittest a phobos module, e.g.:
>
> make -f posix.mak MODEL=32 std/conv.test
>
> I get:
>
> /usr/bin/ld: cannot find -lcurl
>
> What do I need to do to link libcurl/32 properly on my 64-bit platform? I've searched around for a while, no avail.
>
>
> Thanks,
>
> Andrei

do you have gcc-multilib and g++multilib? It probably includes some necessary libraries for 32 bit compilation.

On 8/6/15 10:30 AM, Jacob Carlborg wrote:
> On 06/08/15 16:18, Andrei Alexandrescu wrote:
>> So I am trying to unittest phobos in its 32-bit build on a Ubuntu64
>> machine. I installed these additional packages:
>>
>> sudo apt-get install libc6-dev-i386 libcurl3:i386
>>
>> When I try to unittest a phobos module, e.g.:
>>
>> make -f posix.mak MODEL=32 std/conv.test
>>
>> I get:
>>
>> /usr/bin/ld: cannot find -lcurl
>>
>> What do I need to do to link libcurl/32 properly on my 64-bit platform?
>> I've searched around for a while, no avail.
>
> Is the path were the 32bit libraries are installed in the standard
> search path? Otherwise add them, I'm guessing it's /usr/lib32 or
> something like that.

I've added -L-L/usr/lib/i386-linux-gnu, where the 32-bit libs are on Ubuntu. Ultimately the command that fails is:

gcc /tmp/parallelism.o -o /tmp/dmd_runqdeQbJ -g -m32 -L/usr/lib/i386-linux-gnu -lcurl generated/linux/debug/32/libphobos2.a -lpthread -lm -lrt

Indeed some but not all of the libcurl paraphernalia does seem to be there:

ls /usr/lib/i386-linux-gnu/libcurl*
/usr/lib/i386-linux-gnu/libcurl.so.3 /usr/lib/i386-linux-gnu/libcurl.so.4 /usr/lib/i386-linux-gnu/libcurl.so.4.3.0

So the .a file is missing. How do I install it?

> BTW, the :i386 packages have never worked properly for me (they ended up
> uninstalling the whole GUI). I install the "ia32-libs" and
> "gcc-multilib" packages.

gcc-multilib was already installed, and:

E: Package 'ia32-libs' has no installation candidate


Thanks,

Andrei

On 8/6/15 10:37 AM, rsw0x wrote:
> On Thursday, 6 August 2015 at 14:18:09 UTC, Andrei Alexandrescu wrote:
>> So I am trying to unittest phobos in its 32-bit build on a Ubuntu64
>> machine. I installed these additional packages:
>>
>> sudo apt-get install libc6-dev-i386 libcurl3:i386
>>
>> When I try to unittest a phobos module, e.g.:
>>
>> make -f posix.mak MODEL=32 std/conv.test
>>
>> I get:
>>
>> /usr/bin/ld: cannot find -lcurl
>>
>> What do I need to do to link libcurl/32 properly on my 64-bit
>> platform? I've searched around for a while, no avail.
>>
>>
>> Thanks,
>>
>> Andrei
>
> 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

On 8/6/15 12:09 PM, 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:
>>> So I am trying to unittest phobos in its 32-bit build on a Ubuntu64
>>> machine. I installed these additional packages:
>>>
>>> sudo apt-get install libc6-dev-i386 libcurl3:i386
>>>
>>> When I try to unittest a phobos module, e.g.:
>>>
>>> make -f posix.mak MODEL=32 std/conv.test
>>>
>>> I get:
>>>
>>> /usr/bin/ld: cannot find -lcurl
>>>
>>> What do I need to do to link libcurl/32 properly on my 64-bit
>>> platform? I've searched around for a while, no avail.
>>>
>>>
>>> Thanks,
>>>
>>> Andrei
>>
>> 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?

Update: I installed libcurl4-gnutls-dev:i386 instead. That seems to not conflict with libcurl4-openssl-dev and did go through. Subsequently things do seem to work. I've updated the intro:

http://wiki.dlang.org/Starting_as_a_Contributor#0._Prerequisites


Andrei

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?

On Thursday, 6 August 2015 at 14:18:09 UTC, Andrei Alexandrescu wrote:
> So I am trying to unittest phobos in its 32-bit build on a Ubuntu64 machine. I installed these additional packages:
>
> sudo apt-get install libc6-dev-i386 libcurl3:i386
>
> When I try to unittest a phobos module, e.g.:
>
> make -f posix.mak MODEL=32 std/conv.test
>
> I get:
>
> /usr/bin/ld: cannot find -lcurl
>
> What do I need to do to link libcurl/32 properly on my 64-bit platform? I've searched around for a while, no avail.
>
>
> Thanks,
>
> Andrei

aptitude install libcurl-dev:i386

You need the 32 bits version of the libs to make that work.