Installing 32-bit Lazarus on a 64-bit Linux

[fedkad]

I am running Ubuntu 18.10 (64-bit). For some reason, I want to create 32-bit Linux executables. So, I tried to install 32-bit Lazarus on this 64-bit Linux machine.

I downloaded the following:

fpc-laz_3.0.4-1_i386.deb          23158450
fpc-src_3.0.4-1_i386.deb          23541216
lazarus-project_2.0.2-0_i386.deb  110352126

While trying to install fpc-laz_3.0.4-1_i386.deb, I get the following error:

# dpkg -i fpc-laz_3.0.4-1_i386.deb
dpkg: regarding fpc-laz_3.0.4-1_i386.deb containing fpc-laz:i386, pre-dependency problem:
 fpc-laz:i386 pre-depends on binutils
  binutils is not installed.

binutils is installed in the system; however, I think it needs 32-bit binutils.

But, there is no 32-bit binutils installation candidate in Ubuntu repository.

 

[Thaddy]

You need to install multi-arch if you want to run 32 bit on 64 bit linux,

[Handoko]

@fedkad

I checked my Ubuntu Mate 64-bit using Synaptic Package Manager. I saw I have binutils-common:i386 and binutils-i686-linux-gnu installed. Those packages are provided by Ubuntu because we can see the icon on the right of the names.

[fedkad]

@fedkad
I checked my Ubuntu Mate 64-bit using Synaptic Package Manager. I saw I have binutils-common:i386 and binutils-i686-linux-gnu installed. Those packages are provided by Ubuntu because we can see the icon on the right of the names.

I tried to install binutils:i386. But, while doing this, the system tried to uninstall the 64-bit version of binutils and eventually the 64-bit gcc environment, up to the point that ubuntu-desktop was no longer working. I had to reinstall them back, which forced a removal of 32-bit binutils. So, it seems to me, that it is not possible to install 32-bit Lazarus on a 64-bit Linux. (This was not the case with Windows though, were I could install 32-bit Lazarus on a 64-bit Windows.)

You need to install multi-arch if you want to run 32 bit on 64 bit linux,

I will try to go this path. Some pointers will be highly appreciated.

Thanks.

[Handoko]

Sorry, that caused trouble to you.

I've just checked my system, it has these installed:
- binutils
- binutils-common
- binutils-common:i386
- binutils-i686-linux-gnu
- binutils-x86-64-linux-gnu
- libbinutils
- libbinutils:386

It seems I have both 32 and 64 bit of binutils installed on the same machine and it is working good. I don't know why. Need someone more experience in Linux.

[Handoko]

I checked it again, I saw it has multiarch-support installed.

[fedkad]

Sorry, that caused trouble to you.

No problem. I am just testing! 

This is the output I get while trying to install binutils:i386:

root@fedubu:~# apt install  binutils:i386
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  binutils-x86-64-linux-gnu libasan5 libatomic1 libbinutils libc-dev-bin libc6-dev libgcc-8-dev libitm1 liblsan0 libmpx2
  libquadmath0 libtsan0 libubsan1 manpages-dev
Use 'apt autoremove' to remove them.
The following additional packages will be installed:
  binutils-i686-linux-gnu libbinutils:i386
Suggested packages:
  binutils-doc:i386 binutils-doc
The following packages will be REMOVED:
  binutils gcc gcc-8
The following NEW packages will be installed:
  binutils:i386 binutils-i686-linux-gnu libbinutils:i386
0 upgraded, 3 newly installed, 3 to remove and 0 not upgraded.
Need to get 2,793 kB of archives.
After this operation, 11.3 MB disk space will be freed.
Do you want to continue? [Y/n]

[avra]

I want to create 32-bit Linux executables.

Have you tried cross compilation? Easiest done via fpcupdeluxe.

[fedkad]

I checked it again, I saw it has multiarch-support installed.

Even after installing binutils-multiarch*, I still get a similar output:

root@fedubu:~# apt install  binutils:i386
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  binutils-x86-64-linux-gnu libasan5 libatomic1 libbinutils libc-dev-bin libc6-dev libgcc-8-dev libitm1 liblsan0 libmpx2
  libquadmath0 libtsan0 libubsan1 manpages-dev
Use 'apt autoremove' to remove them.
The following additional packages will be installed:
  binutils-i686-linux-gnu libbinutils:i386
Suggested packages:
  binutils-doc:i386 binutils-doc
The following packages will be REMOVED:
  binutils binutils-dev binutils-multiarch binutils-multiarch-dbg binutils-multiarch-dev gcc gcc-8
The following NEW packages will be installed:
  binutils:i386 binutils-i686-linux-gnu libbinutils:i386
0 upgraded, 3 newly installed, 7 to remove and 0 not upgraded.
Need to get 2,793 kB of archives.
After this operation, 49.8 MB disk space will be freed.
Do you want to continue? [Y/n]

[lucamar]

I checked it again, I saw it has multiarch-support installed.

Even after installing binutils-multiarch*, I still get a similar output:

Not just binutils-multiarch: you must install the package multiarch-support. It should be pulled automatically but apparently it isn't.

Note: The image is from Ubuntu 12.04; you should have a more modern version

[fedkad]

Not just binutils-multiarch: you must install the package multiarch-support. It should be pulled automatically but apparently it isn't.

I already had:

root@fedubu:~# apt install multiarch-support
Reading package lists... Done
Building dependency tree       
Reading state information... Done
multiarch-support is already the newest version (2.28-0ubuntu1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.