cmake enable -Wcast-align and disable per module

platforms/posix/src/px4_layer/CMakeLists.txt

@@ -54,6 +54,7 @@ add_library(px4_layer
 	${SHMEM_SRCS}
 )
 target_compile_definitions(px4_layer PRIVATE MODULE_NAME="px4")
+target_compile_options(px4_layer PRIVATE -Wno-cast-align) # TODO: fix and enable
 target_link_libraries(px4_layer PRIVATE work_queue)
 target_link_libraries(px4_layer PRIVATE px4_daemon)
 

platforms/qurt/cmake/px4_impl_os.cmake

@@ -133,6 +133,7 @@ function(px4_os_add_flags)
 		-fmath-errno
 
 		-Wno-unknown-warning-option
+		-Wno-cast-align
 	)
 
 	# Clear -rdynamic flag which fails for hexagon