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Editorial Team
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Asked: 2026-06-03T01:58:48+00:00

I’m trying to build MySQLdb 1.2.3. I’ve edited the build configuration to set threadsafe

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I’m trying to build MySQLdb 1.2.3. I’ve edited the build configuration to set threadsafe = False, and now, when I build, I see the following:

A long list of warnings ala 

_mysql.c:986: warning: implicit conversion shortens 64-bit value into a 32-bit value

and an llvm crash at the end:

lipo: /var/folders/fk/648y1j5d0c94ljvc5k0xncmh0000gt/T//ccoAI1iz.out and /var/folders/fk/648y1j5d0c94ljvc5k0xncmh0000gt/T//cc9fJKgC.out have the same architectures (x86_64) and can't be in the same fat output file
error: command 'llvm-gcc-4.2' failed with exit status 1

Is there a quick workaround for these problems?

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1 Answer

  1. Editorial Team

    Looks like this is a problem caused by a mismatch between the library version I am building, python version and/or mysql version on my system.

    I corrected it by ensuring all versions match at 64 bit, and running 

    ARCHFLAGS="-arch x86_64" python setup.py build

    as recommended here.

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