About /lib/libQtGui.so:undefined reference to 'qFree(void*)'

[ddbddb]

Hi，guys

I got a problem when i complied the qt-embedded-linux-opensource-src-4.4.0

" /lib/libQtGui.so: undefined referencd to 'qFree(void*)'
/lib/libQtGui.so: undefined referencd to 'qMalloc(void*)'
/lib/libQtGui.so: undefined referencd to 'qRealloc(void*)'
"

Is that lost a lib or other?

Please help.
thanks in advance