[Qt-interest] "dyld: unknown required load command" error on Mac OS X

[Michael Jackson]

On 4/23/10 10:19 AM, in article hqsa8h$i7i$1 at eple.troll.no, "Nikos
Chantziaras" wrote:

> On 04/23/2010 04:25 PM, Michael Jackson wrote:
>> On 4/22/10 2:38 PM, in article hqq522$eqo$1 at eple.troll.no, "Nikos
>> Chantziaras" wrote:
>> 
>>> When trying to run an application that is compiled on Mac OS X 10.6 on
>>> 10.5, it shows an "dyld: unknown required load command 0x80000022
>>> Trace/BPT trap" error and crashes.
>>> 
>>> What does that mean?  On 10.6, I'm using the Cocoa version of Qt 4.6.2
>>> (the dmg available from qt.nokia.com, I didn't build it myself).  The
>>> application is compiled as a 64-bit, Intel app.  I've used the
>>> macdeployqt tool to create a dmg, and works just fine on other 10.6
>>> systems, just not 10.5 ones.
>> 
>> You didn't use the correct OS X SDK when building. IT needs to be set to
>> 10.5 and NOT 10.6. This seems to be coming up on several mailing lists.
>> Recently on the HDF-Forum mailing list this was posted which may help:
>> [...]
> 
> It turns out I should have RTFMed more:
> 
> http://doc.trolltech.com/4.6/deployment-mac.html#mac-os-x-version-dependencies
> 
> It turns out Qt support this quite easily.  All I had to do was setting:
> 
>    QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.4
> 
> in the project file :P  I don't have a 10.4 installation available, but
> it seems it works OK on 10.5 now.

Great, 
 Just note that the Qt Cocoa requires at least OS X 10.5. It will NOT work
on 10.4.

Mike Jackson