cmake HAS_ROUTER examples

Froser/gamemachine src/3rdparty/openal-soft-1.19.1/CMakeLists.txt :1393 

UNSET(HAS_ROUTER)

axmolengine/axmol 3rdparty/openal/CMakeLists.txt :1413 

unset(HAS_ROUTER)

glKarin/com.n0n3m4.diii4a Q3E/src/main/jni/doom3/neo/externlibs/openal-soft/CMakeLists.txt :1328 

unset(HAS_ROUTER)

kcat/openal-soft CMakeLists.txt :1497 

unset(HAS_ROUTER)