Building QGIS on ARM produces the error:
sip: qgis/python/core/qgsclipper.sip:44: \
QgsClipper::trimFeature() unsupported function argument type - provide %MethodCode and a C++ signature
For the Android builds this was fixed in commit 2cc684793ceb29d8600d71564fb38f92c998f588.
This patch adapts the Android fix, by disabling the SIP features on all ARM systems.
Bug-Debian: http://bugs.debian.org/737814