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

[Nikos Chantziaras]

I build binaries in virtual machines anyway.  I only do cross compiling 
for building Windows binaries in Linux.  So it's not a problem here.


On 06/11/2011 12:07 AM, Malyushytsky, Alex wrote:
> 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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