> a) Delete nonsense about "not polluting the namespace with stddef.h
> symbols" since string.h includes stddef.h a little later anyway.
If you are talking specifically about the glibc implementation's string.h,
then you are confused. glibc's string.h complies with the C and POSIX
standards, and so does not pollute the namespace with all of stddef.h's
names. It only defines size_t and NULL via stddef.h. If you also want
ptrdiff_t for use in obstack.h, with GCC's stddef.h you can do:
#define __need_ptrdiff_t
#include <stddef.h>
That said, I don't think anybody actually cares about a GNU extension
header like obstack.h implicitly defining common standard C symbols like
that ones that stddef.h defines.
