-target_link_libraries(am7xxx ${LIBUSB_1_LIBRARIES})
-target_link_libraries(am7xxx-static ${LIBUSB_1_LIBRARIES})
+find_library(MATH_LIB m)
+
+target_link_libraries(am7xxx ${MATH_LIB} ${LIBUSB_1_LIBRARIES})
+target_link_libraries(am7xxx-static ${MATH_LIB} ${LIBUSB_1_LIBRARIES})