bad codegen, pointer diff in ofPoint linker error

just wanted to port an application that’s building & running fine on OS X 0062 over to iOS 0062. unfortunately i get this strange error:

[tt]ld: bad codegen, pointer diff in ofPoint::ofPoint(float, float, float)to global weak symbol vtable for ofPointfor architecture i386
collect2: ld returned 1 exit status
Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g+±4.2 failed with exit code 1[/tt]

i use no single ofPoint in my Project,
must have something to do with ofxVectorMath i suppose

any hints? thanks!