cmake HAVE_INITGUID_H examples

Froser/gamemachine src/3rdparty/openal-soft-1.19.1/CMakeLists.txt :495 

CHECK_INCLUDE_FILE(initguid.h HAVE_INITGUID_H)

glKarin/com.n0n3m4.diii4a Q3E/src/main/jni/doom3/neo/externlibs/openal-soft/CMakeLists.txt :502 

check_include_file(initguid.h HAVE_INITGUID_H)