[KDE/Mac] system misses support for posix_fallocate()

[Marko Käning]

Hi, when I try to run e.g. tutorial example #2 I get the following warning message on Mac OS X 10.6:
 
$ ./tutorial2.app/Contents/MacOS/tutorial2
tutorial2(37163)/KSharedDataCache ensureFileAllocated: This system misses support for posix_fallocate() -- ensure this partition has room for at least 10547304 bytes. 

What's going on here? Is this a message from KDE or rather QT?

My installation is based on MacPorts with the following recent versions:

$ port installed kdelibs4 qt4-mac
The following ports are currently installed:
  kdelibs4 @4.7.0_1 (active)
  qt4-mac @4.7.3_0+quartz (active)

Any clue?