include stddef.h

diff --git a/Include/structmember.h b/Include/structmember.h
index 6bd9e720b9cd2c54db165ec1a40c8865a356832d..7a047b9307f454541d08ffcea2b81cdda21f0bdb 100644 (file)
--- a/Include/structmember.h
+++ b/Include/structmember.h
@@ -30,6 +30,10 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 /* Interface to map C struct members to Python object attributes */
 
+#ifdef HAVE_STDDEF_H
+#include <stddef.h> /* For offsetof */
+#endif
+
 /* The offsetof() macro calculates the offset of a structure member
    in its structure.  Unfortunately this cannot be written down
    portably, hence it is provided by a Standard C header file.