Cannot compile Qt with no-gui on AIX

This is what happens when building with -no-gui:

gmake[3]: Entering directory `/root/qt-everywhere-opensource-src-4.7.3/src/plugins/graphicssystems/trace'
rm -f libqtracegraphicssystem.so
g++ -maix64 -L/usr/lib/threads -shared -o libqtracegraphicssystem.so .obj/release-shared/main.o .obj/release-shared/qgraphicssystem_trace.o -L/root/qt-everywhere-opensource-src-4.7.3/lib -lQtGui -L/root/qt-everywhere-opensource-src-4.7.3/lib -L/usr/X11R6/lib -lQtNetwork -lQtCore -lpthreads
collect2: library libQtGui not found
gmake[3]: *** [../../../../plugins/graphicssystems/libqtracegraphicssystem.so] Error 1

Patch attached that stops the building of gui plugins when using -no-gui.