After fixing a do_unpack issue (see first patch in contrib branch qt4-nativesdk-fix1) I have found that qt4-tools-nativesdk fails at compile with the following error:

-------- snip --------
ccache x86_64-pokysdk-linux-g++  --sysroot=/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux -c -isystem/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux/opt/poky/1.0+snapshot/sysroots/x86_64-pokysdk-linux/usr/include -O2 -pipe -I/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux/opt/poky/1.0+snapshot/sysroots/x86_64-pokysdk-linux/usr/include -I/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux/opt/poky/1.0+snapshot/sysroots/x86_64-pokysdk-linux/usr/include/freetype2 -I/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux/opt/poky/1.0+snapshot/sysroots/x86_64-pokysdk-linux/usr/include/dbus-1.0 -I/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux/opt/poky/1.0+snapshot/sysroots/x86_64-pokysdk-linux/usr/lib/dbus-1.0/include -I/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux/opt/poky/1.0+snapshot/sysroots/x86_64-pokysdk-linux/usr/include/c++ -I/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux/opt/poky/1.0+snapshot/sysroots/x86_64-pokysdk-linux/usr/include/c++/x86_64-pokysdk-linux -fno-exceptions -I/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux/opt/poky/1.0+snapshot/sysroots/x86_64-pokysdk-linux/usr/include/dbus-1.0 -I/media/large/tmp/sysroots/x86_64-nativesdk-pokysdk-linux/opt/poky/1.0+snapshot/sysroots/x86_64-pokysdk-linux/usr/lib/dbus-1.0/include -Wall -W -D_REENTRANT -fPIC -DQT_BUILD_DBUS_LIB -DDBUS_API_SUBJECT_TO_CHANGE -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT3_SUPPORT -DQT_MOC_COMPAT -DQT_USE_FAST_OPERATOR_PLUS -DQT_USE_FAST_CONCATENATION -DQT_NO_DEBUG -DQT_XML_LIB -DQT_CORE_LIB -DQT_HAVE_MMX -DQT_HAVE_3DNOW -DQT_HAVE_SSE -DQT_HAVE_MMXEXT -DQT_HAVE_SSE2 -DQT_HAVE_SSE3 -DQT_HAVE_SSSE3 -DQT_HAVE_SSE4_1 -DQT_HAVE_SSE4_2 -DQT_HAVE_AVX -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I../../mkspecs/linux-g++ -I. -I../../include/QtCore -I../../include/QtXml -I../../include -I../../include/QtDBus -I.rcc/release-static-emb-auto -I.moc/release-static-emb-auto -o .obj/release-static-emb-auto/qdbusinternalfilters.o qdbusinternalfilters.cpp
qdbusintegrator.cpp: In member function 'void QDBusConnectionPrivate::deliverCall(QObject*, int, const QDBusMessage&, const QList<int>&, int)':
qdbusintegrator.cpp:908:10: warning: variable 'takesMessage' set but not used [-Wunused-but-set-variable]
In file included from ../../include/QtCore/qatomic_generic.h:1:0,
                 from ../../include/QtCore/../../src/corelib/arch/qatomic_arch.h:62,
                 from ../../include/QtCore/qatomic_arch.h:1,
                 from ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:227,
                 from ../../include/QtCore/qbasicatomic.h:1,
                 from ../../include/QtCore/../../src/corelib/thread/qatomic.h:46,
                 from ../../include/QtCore/qatomic.h:1,
                 from ../../include/QtCore/../../src/corelib/tools/qbytearray.h:45,
                 from ../../include/QtCore/qbytearray.h:1,
                 from ../../include/QtCore/../../src/corelib/tools/qstring.h:46,
                 from ../../include/QtCore/qstring.h:1,
                 from ../../include/QtCore/../../src/corelib/kernel/qobject.h:48,
                 from ../../include/QtCore/qobject.h:1,
                 from ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:45,
                 from ../../include/QtCore/qcoreapplication.h:1,
                 from qdbusintegrator.cpp:42:
../../include/QtCore/../../src/corelib/arch/qatomic_generic.h: In member function 'bool QBasicAtomicPointer<T>::testAndSetOrdered(T*, T*) [with T = const QString]':
qdbusintegrator.cpp:74:374:   instantiated from here
../../include/QtCore/../../src/corelib/arch/qatomic_generic.h:197:88: error: invalid conversion from 'const void*' to 'void*' [-fpermissive]
../../include/QtCore/../../src/corelib/arch/qatomic_generic.h:108:7: error:   initializing argument 2 of 'bool QBasicAtomicPointer_testAndSetOrdered(void* volatile*, void*, void*)' [-fpermissive]
../../include/QtCore/../../src/corelib/arch/qatomic_generic.h:197:88: error: invalid conversion from 'const void*' to 'void*' [-fpermissive]
../../include/QtCore/../../src/corelib/arch/qatomic_generic.h:108:7: error:   initializing argument 3 of 'bool QBasicAtomicPointer_testAndSetOrdered(void* volatile*, void*, void*)' [-fpermissive]
make: *** [.obj/release-static-emb-auto/qdbusintegrator.o] Error 1
make: *** Waiting for unfinished jobs....
ERROR: oe_runmake failed
ERROR: Function 'do_compile' failed (see /media/large/tmp/work/x86_64-nativesdk-pokysdk-linux/qt4-tools-nativesdk-4.7.3-r3.0/temp/log.do_compile.9427 for further information)
-------- snip --------


I found the same error message in two separate bug reports:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=623281
http://bugreports.qt.nokia.com/browse/QTBUG-17962

I'm not sure that the first is relevant given that the configure log is reporting:
-------- snip --------
Determining system architecture... (Linux:2.6.35.13-92.fc14.x86_64:x86_64)
    64-bit AMD 80x86 (x86_64)
    'arm' is supported
    'x86_64' is supported
System architecture: 'arm'
Host architecture: 'x86_64'
-------- snip --------

So there is apparently no issue with an unsupported architecture. The second bug report has an attached patch but seems to have been rejected for procedural reasons so the correctness of the patch is unclear.