cmake: allow intel-media.sh sysconf optional

On some setups it does not make sense to require intel-media.sh
to be installed.  For example, most VAAPI power-users don't
want the VAAPI driver predefined since they may be using multiple
drivers for different purposes/setups.

Add -DINSTALL_DRIVER_SYSCONF=[ON|OFF] option so users can
enable/disable it as necessary.  Default value is "ON" to
maintain previous default functionality.

Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>

CMakeLists.txt

@@ -35,12 +35,18 @@ if (TARGET iHD_drv_video AND TARGET igfxcmrt)
     endif()
     message(STATUS "LIBVA_DRIVERS_PATH = ${LIBVA_DRIVERS_PATH}")
 
-    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/media_driver/cmake/linux/intel-media.sh.in ${CMAKE_CURRENT_BINARY_DIR}/media_driver/cmake/linux/intel-media.sh)
-
     install (FILES ${CMAKE_CURRENT_BINARY_DIR}/media_driver/iHD_drv_video.so DESTINATION ${LIBVA_DRIVERS_PATH})
-    install (FILES ${CMAKE_CURRENT_BINARY_DIR}/media_driver/cmake/linux/intel-media.sh  DESTINATION ${CMAKE_INSTALL_FULL_SYSCONFDIR}/profile.d/)
     install (FILES ${CMAKE_CURRENT_BINARY_DIR}/cmrtlib/linux/igfxcmrt64.so DESTINATION ${CMAKE_INSTALL_LIBDIR})
 
+    option (INSTALL_DRIVER_SYSCONF "Install driver system configuration file" ON)
+    if (INSTALL_DRIVER_SYSCONF)
+        configure_file (
+            ${CMAKE_CURRENT_SOURCE_DIR}/media_driver/cmake/linux/intel-media.sh.in
+            ${CMAKE_CURRENT_BINARY_DIR}/media_driver/cmake/linux/intel-media.sh)
+        install (FILES ${CMAKE_CURRENT_BINARY_DIR}/media_driver/cmake/linux/intel-media.sh
+            DESTINATION ${CMAKE_INSTALL_FULL_SYSCONFDIR}/profile.d/)
+    endif()
+
     if (IS_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/../libva-install/usr/bin)
         install (DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/../libva-install/usr/bin DESTINATION ${CMAKE_INSTALL_PREFIX}
                  FILE_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)