Question

6

Compile 32 bit on 64 bitsystem

rated 0 times [ 6] [ 0] / answers: 1 / hits: 13439 / 2 Years ago, sun, february 6, 2022, 10:43:22

I'm trying to compile a 32 bit version of python on a 64 bit ubuntu system with the following configure command:

CC="gcc -m32" LDFLAGS="-L/lib32 -L/usr/lib32  -Lpwd/lib32 -Wl,-rpath,/lib32 

    -Wl,-rpath,/usr/lib32"  ./configure --prefix=/opt/pym32

then make, make install. No errors, but it should be something wrong because a "readelf -h python" tells me that python was build as a ELF64 instead.

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lishrag

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1 Year ago

answered 2 Years ago terose · Accepted Answer

Use "--build" and "--host".

./configure --help

System types:

  --build=BUILD     configure for building on BUILD [guessed]

  --host=HOST       cross-compile to build programs to run on HOST [BUILD]

You need to use

./configure --build=x86_64-pc-linux-gnu --host=i386-pc-linux-gnu

to compile for 32-bit Linux in a 64-bit Linux system. You still need to add the other ./configure options.