Don't compile on OSX 10.6

[mandria]

Error:

CompileC build/videograb.build/Debug/videograb.build/Objects-normal/i386/ofxMacFileDialog.o /Developer/of_preRelease_v0062_osxSL_FAT/addons/ofxMacFileDialog/src/ofxMacFileDialog.cpp normal i386 c++ com.apple.compilers.gcc.4_2
cd /Developer/of_preRelease_v0062_osxSL_FAT/Code/sonos/videograb-opencv-sonos
setenv LANG en_US.US-ASCII
/Developer/usr/bin/gcc-4.2 -x c++ -arch i386 -fmessage-length=0 -pipe -Wno-trigraphs -fpascal-strings -fasm-blocks -O0 -mfix-and-continue -ftree-vectorize -msse3 -mssse3 -Wno-deprecated-declarations -Wno-invalid-offsetof -gdwarf-2 -I/Developer/of_preRelease_v0062_osxSL_FAT/Code/sonos/videograb-opencv-sonos/build/videograb.build/Debug/videograb.build/ofxKinectDebug.hmap -F/Developer/of_preRelease_v0062_osxSL_FAT/Code/sonos/videograb-opencv-sonos/bin -F/Developer/of_preRelease_v0062_osxSL_FAT/Code/sonos/videograb-opencv-sonos/../../../libs/glut/lib/osx -I/Developer/of_preRelease_v0062_osxSL_FAT/Code/sonos/videograb-opencv-sonos/bin/include -I. -Ibin -Isrc -Ibin/data -Ibin/ofxKinectDebug.app -Ibin/ofxKinectDebug.app/Contents -Ibin/ofxKinectDebug.app/Contents/Frameworks -Ibin/ofxKinectDebug.app/Contents/MacOS -I../../../libs/openFrameworks -I../../../libs/openFrameworks/app -I../../../libs/openFrameworks/communication -I../../../libs/openFrameworks/events -I../../../libs/openFrameworks/graphics -I../../../libs/openFrameworks/sound -I../../../libs/openFrameworks/utils -I../../../libs/openFrameworks/video -I../../../libs/freetype/include -I../../../libs/freetype/include/freetype2 -I../../../libs/poco/include -I../../../addons -I/Developer/of_preRelease_v0062_osxSL_FAT/Code/sonos/videograb-opencv-sonos/build/videograb.build/Debug/videograb.build/DerivedSources/i386 -I/Developer/of_preRelease_v0062_osxSL_FAT/Code/sonos/videograb-opencv-sonos/build/videograb.build/Debug/videograb.build/DerivedSources -D__MACOSX_CORE__ -lpthread -include /var/folders/mT/mTPUmm0wFz8lmY5X63r-5U+++TI/-Caches-/com.apple.Xcode.501/SharedPrecompiledHeaders/Carbon-eztqfxznyzrnmtfkodemltgjsrsc/Carbon.h -c /Developer/of_preRelease_v0062_osxSL_FAT/addons/ofxMacFileDialog/src/ofxMacFileDialog.cpp -o /Developer/of_preRelease_v0062_osxSL_FAT/Code/sonos/videograb-opencv-sonos/build/videograb.build/Debug/videograb.build/Objects-normal/i386/ofxMacFileDialog.o

/Developer/of_preRelease_v0062_osxSL_FAT/addons/ofxMacFileDialog/src/ofxMacFileDialog.cpp: In function 'const CFURL* GetOpenDialogForUser(kDialogType, char, char)':
/Developer/of_preRelease_v0062_osxSL_FAT/addons/ofxMacFileDialog/src/ofxMacFileDialog.cpp:82: error: jump to label 'CantGetNavOptions'
/Developer/of_preRelease_v0062_osxSL_FAT/addons/ofxMacFileDialog/src/ofxMacFileDialog.cpp:28: error: from here
/Developer/of_preRelease_v0062_osxSL_FAT/addons/ofxMacFileDialog/src/ofxMacFileDialog.cpp:32: error: crosses initialization of 'const __CFAllocator* alloc_default'

regards