Search for stdio.h
in your compiler's path. It could possibly be in some kind of include
or inc
folder. Then try to see if there is a stddef.h
at the same place.
Try to remove the line including stddef.h
and see if the compiler complains about stdio.h
.
If you find both files, then you probably need to setup your build commands to add the path to the std*.h
files (possibly with the -I
flag).