QMAKE_HOST.arch is x86 on a 64 bits machine

[pl01]

Hi,

I'm trying to check if I'm on a 64bits machine or a 32 bits one. So I use this in the .pro file

!contains($$QMAKE_HOST.arch, x86_64) { ....

!contains($$QMAKE_HOST.arch, x86_64) { ....

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But it detect that I'm on 32 bits machine... in fact QMAKE_HOST.arch = x86 !!!!

What is the problem ?

Thanks