Re: Is there a way to build 32-bit mode on 64-bit Linux boxes?

Wayne Schroeder wrote:
> I'm trying to build postgresql and odbc from source on x86_64 Linux
> hosts but I need to run them in 32-bit addressing mode since my app is
> not 64-bit ready yet.

What does your app care? Unless you are writing the app directly to libpq?

Which version of Linux are you running?

Sincerely,

Joshua D. Drake


>
> Simple test programs can be built as 32-bit apps (if the libraries are
> installed) via gcc's -m32 option.
>
> I checked for postgres configure options to do something similar, but
> didn't find anything.  I experimented with setting environment
> variable CFLAGS to -m32 and it does seem to be picked up by
> configure/make, but then 'ld' gets errors:
>   /usr/bin/ld -r -o SUBSYS.o heaptuple.o indextuple.o indexvalid.o
>   printtup.o scankey.o tupdesc.o
>   /usr/bin/ld: Relocatable linking with relocations from format
>   elf32-i386 (heaptuple.o) to format elf64-x86-64 (SUBSYS.o) is not
>   supported
> So ld needs some additional options of some sort, but it looks like
> that would involve some complicated specifications of various libraries.
>
> I checked the archives, but didn't see anything about this.
>
> Is there any way to do this?  Any plans to add it?  Any hints on what
> I could try?
>
> Thanks much,
>
>  - Wayne -
>
> (This is my home email address as I was unable to post from work
> (schroede@sdsc.edu))
> http://users.sdsc.edu/~schroede
> SDSC Storage Resource Broker group  http://www.sdsc.edu/srb
>
>
>
>
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