find_package(Boost ...) was missing the "thread" entry, which caused
linking to fail in some situations.
[100%] Building CXX object test/CMakeFiles/pulseview-test.dir/__/pv/widgets/moc_wellarray.cxx.o
Linking CXX executable pulseview-test
CMakeFiles/pulseview-test.dir/__/pv/sigsession.cpp.o: In function `pv::SigSession::SigSession(pv::DeviceManager&)':
sigsession.cpp:(.text+0xfa): undefined reference to `boost::thread::thread()'
[....]
# This will set ${CMAKE_THREAD_LIBS_INIT} to the correct, OS-specific value.
find_package(Threads)
-find_package(Boost 1.46 COMPONENTS system unit_test_framework REQUIRED)
+find_package(Boost 1.46 COMPONENTS system thread unit_test_framework REQUIRED)
#FIND_PROGRAM(QT_QMAKE_EXECUTABLE NAMES qmake4 qmake-qt4 qmake-mac)
find_package(Qt4 REQUIRED)