[Qt-interest] How do I tell with qmake whether system is 64 or32-bit?

[Malyushytsky, Alex]

Correct me if I am wrong.
This approach assumes you want to build binaries only for the system you are running it.
In other words your project files will never be used (or display problem if used) when compiling 32 bit code on 64 bit computer or vice versa.

The only way to  fix it seems using it to specify a defaults to be for current system,
but at  the same time provide an option which can be specified as a parameter for qmake to override it.

Regards,
    Alex


-----Original Message-----
From: qt-interest-bounces+alex=wai.com at qt.nokia.com [mailto:qt-interest-bounces+alex=wai.com at qt.nokia.com] On Behalf Of Nikos Chantziaras
Sent: Friday, June 10, 2011 12:16 AM
To: qt-interest at qt.nokia.com
Subject: Re: [Qt-interest] How do I tell with qmake whether system is 64 or32-bit?

Thank you very much, Ben.  This works nicely on Linux too.

On 06/09/2011 10:21 PM, Ben Swerts wrote:
> Hi Nikos,
>
> For quite a few systems you can check the QMAKESPEC, as mentioned before.
> For Windows, however, you'll need something else. We use this construct:
>
> win32:contains(QMAKE_HOST.arch, x86_64) {
>    LIBS += fmodex64
> } else {
>    LIBS += fmodex32
> }
>
> Hope it helps,
>
>
>       Ben
>
>> -----Original Message-----
>> From: qt-interest-bounces+benswerts=telenet.be at qt.nokia.com
>> [mailto:qt-interest-bounces+benswerts=telenet.be at qt.nokia.com]
>>   On Behalf Of Nikos Chantziaras
>> Sent: Wednesday, June 08, 2011 21:25
>> To: qt-interest at qt.nokia.com
>> Subject: [Qt-interest] How do I tell with qmake whether
>> system is 64 or32-bit?
>>
>> In a qmake-based project, I need to include different
>> libraries in the build if the current system is 64-bit.
>> Something like this:
>>
>>     64bit {
>>         LIBS += fmodex64
>>     }
>>     32bit {
>>         LIBS += fmodex32
>>     }
>>
>> How do I do that?
>> _______________________________________________
>> Qt-interest mailing list
>> Qt-interest at qt.nokia.com
>> http://lists.qt.nokia.com/mailman/listinfo/qt-interest
>>

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