Sheild against an highly possible segmentation fault when pulseaudio is misconfigured

sflphone-client-kde/AUTHORS

sflphone-client-kde/CMakeLists.txt

sflphone-client-kde/COPYING

sflphone-client-kde/ChangeLog

sflphone-client-kde/Doxyfile

sflphone-client-kde/INSTALL

sflphone-client-kde/NEWS

sflphone-client-kde/README

sflphone-client-kde/VERSION

sflphone-client-kde/cmake/FindKabc.cmake

sflphone-client-kde/cmake/FindQt4.cmake

sflphone-client-kde/cmake/TargetDistclean.cmake

sflphone-client-kde/data/CMakeLists.txt

sflphone-client-kde/data/icons/CMakeLists.txt

...-client-kde/data/icons/hi128-apps-sflphone-client-kde.png

...e-client-kde/data/icons/hi16-apps-sflphone-client-kde.png

...e-client-kde/data/icons/hi22-apps-sflphone-client-kde.png

...e-client-kde/data/icons/hi32-apps-sflphone-client-kde.png

...e-client-kde/data/icons/hi48-apps-sflphone-client-kde.png

...e-client-kde/data/icons/hi64-apps-sflphone-client-kde.png