You have to use the Apple Quicktime API and not libquicktime with GEM on OSX. Delete all instances of libquicktime from the OSX configure scripts and use the -framework Quicktime instead.
This line means that the libquicktime headers where included:/sw/include/QuickTime/QuickTime.h:4:2: warning: #warning libquicktime header files have moved to /sw/include/lqt/ - please adjust your include statements..hc