for Ubuntu git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@105338 91177308-0d34-0410-b5e6-96231b3b80d8 
diff --git a/include/cstddef b/include/cstddef index 11d07a2..f6b34ad 100644 --- a/include/cstddef +++ b/include/cstddef 
@@ -34,6 +34,13 @@  */    #include <__config> + +#ifdef __GLIBC__ +#define __need_NULL +#define __need_ptrdiff_t +#define __need_size_t +#endif +  #include <stddef.h>    #pragma GCC system_header