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Compiling 32-bit on 64-bit Linux [message #17046]

Sat, 26 July 2008 14:48

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Actually, it is much easier than I thought... Smile

The trick is to add " -m32" to the "Compiler name" in build methods. This switches the compiler (and linker) to 32-bit mode.

A little bit harder part is installing missing libraries. For this to happen, make sure to add "/usr/lib32" to your Libraries paths in build method and then perhaps the best is to install U++ on 32-bit system (e.g. another partition) and to copy missing libraries from it. Tedious process, but should work. (I must admit I tested only with console app I need for work).

Whether you can package 32-bit .debs on 64-bit system is just another question Smile

Mirek

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Re: Compiling 32-bit on 64-bit Linux [message #17058 is a reply to message #17046]

Sat, 26 July 2008 19:46

mdelfede
Messages: 1307
Registered: September 2007

Ultimate Contributor

luzr wrote on Sat, 26 July 2008 14:48

Actually, it is much easier than I thought... Smile

Mirek

No need to install 32 bit ubuntu... There are some a 32 bit compatibility package on ubuntu that installs all 32 bit libraries.
Well.. I don't know which of them are needed, but if you do a

sudo apt-get build-dep wine

I guess you'll have all what you need. That one installs all build dependencies for wine package, whic is a 32 bit one and uses, I think, about 90% of libraries Smile

Ciao

Max

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Re: Compiling 32-bit on 64-bit Linux [message #22746 is a reply to message #17046]

Mon, 10 August 2009 20:49

pveach1
Messages: 10
Registered: August 2009

Promising Member

How about 64 bit windows?

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Re: Compiling 32-bit on 64-bit Linux [message #22749 is a reply to message #22746]

Mon, 10 August 2009 23:00

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

pveach1 wrote on Mon, 10 August 2009 14:49

How about 64 bit windows?

Well, that is quite unrelated IMO.

Anyway, current status is: In Win64, 32-bit theide works and everything compile both in 32/64. The only drawback is debugger (does not work in 64 yet).

Mirek

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Re: Compiling 32-bit on 64-bit Linux [message #23019 is a reply to message #22749]

Tue, 08 September 2009 06:00

nixnixnix
Messages: 415
Registered: February 2007
Location: Kelowna, British Columbia

Senior Member

I can debug 32 bit debug executables in win64 but not 64 bit. It will be good when we can debug 64 bit code too as there is sometimes different behaviour.

Nick

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Re: Compiling 32-bit on 64-bit Linux [message #41113 is a reply to message #17046]

Thu, 31 October 2013 19:39

mr_ped
Messages: 825
Registered: November 2005
Location: Czech Republic - Praha

Experienced Contributor

doing this "cleanly" in Kubuntu13.04 is now basically impossible, as many libraries-dev packages conflict a lot and don't support multiarch setup (zlib and freetype did stop me).

Didn't try to copy the libs directly from working 32b, that would maybe work, but I would prefer working original packages from Ubuntu/Debian, and that doesn't look like anything what will happen in near future.

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