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

reply Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:
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
Aug 06 2015
next sibling parent reply Jacob Carlborg <doob me.com> writes:
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
Aug 06 2015
parent Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:
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
Aug 06 2015
prev sibling next sibling parent reply "rsw0x" <anonymous anonymous.com> writes:
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.
Aug 06 2015
parent reply Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:
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
Aug 06 2015
next sibling parent Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:
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:




Andrei
Aug 06 2015
prev sibling parent "rsw0x" <anonymous anonymous.com> writes:
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?
Aug 06 2015
prev sibling parent "deadalnix" <deadalnix gmail.com> writes:
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.
Aug 06 2015