--- a/embree-2.17.3/common/algorithms/CMakeLists.txt	2018-02-23 10:15:19.817068492 +0100
+++ b/embree-2.17.3/common/algorithms/CMakeLists.txt	2018-02-23 10:09:48.365065242 +0100
@@ -28,5 +28,6 @@
 )
 
 SET_PROPERTY(TARGET algorithms PROPERTY FOLDER common)
+SET_TARGET_PROPERTIES(algorithms PROPERTIES COMPILE_FLAGS "${FLAGS_LOWEST}")
 
  
--- a/embree-2.17.3/common/simd/CMakeLists.txt	2018-02-23 10:15:19.865068664 +0100
+++ b/embree-2.17.3/common/simd/CMakeLists.txt	2018-02-23 10:09:48.365065242 +0100
@@ -16,6 +16,7 @@
 
 ADD_LIBRARY(simd STATIC sse.cpp)
 SET_PROPERTY(TARGET simd PROPERTY FOLDER common)
+SET_TARGET_PROPERTIES(simd PROPERTIES COMPILE_FLAGS "${FLAGS_LOWEST}")
 
 IF (EMBREE_STATIC_LIB)
   INSTALL(TARGETS simd ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT devel)
--- a/embree-2.17.3/common/sys/CMakeLists.txt	2018-02-23 10:15:19.913068835 +0100
+++ b/embree-2.17.3/common/sys/CMakeLists.txt	2018-02-23 10:13:26.240680114 +0100
@@ -32,6 +32,7 @@
 
 TARGET_LINK_LIBRARIES(sys ${CMAKE_THREAD_LIBS_INIT} ${CMAKE_DL_LIBS})
 SET_PROPERTY(TARGET sys PROPERTY FOLDER common)
+SET_TARGET_PROPERTIES(sys PROPERTIES COMPILE_FLAGS "${FLAGS_LOWEST}")
 
 IF (EMBREE_STATIC_LIB)
   INSTALL(TARGETS sys ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT devel)
--- a/embree-2.17.3/common/tasking/CMakeLists.txt	2018-02-23 10:15:19.967069028 +0100
+++ b/embree-2.17.3/common/tasking/CMakeLists.txt	2018-02-23 10:13:54.728773837 +0100
@@ -29,6 +29,7 @@
 ENDIF()
 
 SET_PROPERTY(TARGET tasking PROPERTY FOLDER common)
+SET_TARGET_PROPERTIES(tasking PROPERTIES COMPILE_FLAGS "${FLAGS_LOWEST}")
 
 IF (EMBREE_STATIC_LIB)
   INSTALL(TARGETS tasking ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT devel)