Why doesn't a 32bit .deb package install on 64bit Ubuntu?

Posted by codebox_rob on Stack Overflow See other posts from Stack Overflow or by codebox_rob
Published on 2010-06-12T06:44:59Z Indexed on 2010/06/12 6:53 UTC
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linux

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gcc

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compiler

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packages

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32bit-64bit

My .deb package, built on 32-bit Ubuntu and containing executables compiled with gcc, won't install on the 64-bit version of the OS (the error message says 'Wrong architecture i386'). This is confusing to me because I thought that in general 32-bit software worked on 64-bit hardware, but not vice-versa.

Will it be possible for me to produce a .deb file that I can install on a 64-bit OS, using my 32-bit machine? Is it just a matter of using the appropriate compiler flags to produce the executables (and if so what are they), or is the .deb file itself somehow specific to one processor architecture?

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