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Editorial Team
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Asked: 2026-05-25T00:28:35+00:00

I am trying to compile python 32 bit on OSX. In order to do

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I am trying to compile python 32 bit on OSX. In order to do so, I want to specify -m32, so I dutifully specified 

CFLAGS='-m32' LDFLAGS='-m32' ./configure

The configure executes correctly, but when I invoke make, the gcc execution has no trace of the -m32 flag. In order to have it, I had to do a more aggressive approach:

CFLAGS='-m32' LDFLAGS='-m32' CC='gcc -m32' ./configure

I don’t really understand why the CFLAGS I specify are not passed (the LDFLAGS are. I find LDFLAG=-m32 in the Makefile). Is it an error of the configure script, or am I doing this wrong ?

I’m using python 2.6.0 (don’t ask)

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1 Answer

  1. Editorial Team

    Ok, I can reproduce that with Python-2.6. That seems to be a bug in that version, and is fixed in a newer one.

    Still, I can tell you that it is common for various packages to override or filter CFLAGS of values considered unsafe and so on. This often covers -m32 as well.

    Moreover, many packages simply ignore LDFLAGS (which is an error indeed). Thus, for the particular case of building 32-bit package versions, it is common to override CC like you did and leave CFLAGS and LDFLAGS alone.

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