I just moved my project over to my MacBook and tried compiling under OS X Lion, and I receive the following compile output message/error:

l../../../QtSDK/Desktop/Qt/474/gcc/include -I. -I../FATX -I. -F/Users/landerbrandt/QtSDK/Desktop/Qt/474/gcc/lib -o xMultiFileStream.o ../FATX/IO/xMultiFileStream.cpp
make: g++-4.2: No such file or directory
make: *** [xMultiFileStream.o] Error 1
make: Leaving directory `/Users/landerbrandt/Dropbox/Qt Projects/FATX-build-desktop-Desktop_Qt_4_7_4_for_GCC__Qt_SDK__Debug'
09:04:48: The process "/usr/bin/make" exited with code 2.
Error while building project FATX (target: Desktop)
When executing build step 'Make'
I've never used g++ before, and the application compiles fine under Windows using MSVCC, so I have no idea what the issue is here.