bpo-8677: use PY_SSIZE_T_CLEAN in sqlite (GH-12434)

Modules/_sqlite/cursor.c uses "y#" format.
It didn't declare PY_SSIZE_T_CLEAN, but the argument is Py_ssize_t already.

Modules/_sqlite/cache.h

@@ -23,6 +23,7 @@
 
 #ifndef PYSQLITE_CACHE_H
 #define PYSQLITE_CACHE_H
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 
 /* The LRU cache is implemented as a combination of a doubly-linked with a

Modules/_sqlite/connection.h

@@ -23,6 +23,7 @@
 
 #ifndef PYSQLITE_CONNECTION_H
 #define PYSQLITE_CONNECTION_H
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 #include "pythread.h"
 #include "structmember.h"

Modules/_sqlite/cursor.h

@@ -23,6 +23,7 @@
 
 #ifndef PYSQLITE_CURSOR_H
 #define PYSQLITE_CURSOR_H
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 
 #include "statement.h"

Modules/_sqlite/microprotocols.h

@@ -26,6 +26,7 @@
 #ifndef PSYCOPG_MICROPROTOCOLS_H
 #define PSYCOPG_MICROPROTOCOLS_H 1
 
+#define PY_SSIZE_T_CLEAN
 #include <Python.h>
 
 /** the names of the three mandatory methods **/

Modules/_sqlite/module.h

@@ -23,6 +23,7 @@
 
 #ifndef PYSQLITE_MODULE_H
 #define PYSQLITE_MODULE_H
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 
 #define PYSQLITE_VERSION "2.6.0"

Modules/_sqlite/prepare_protocol.h

@@ -23,6 +23,7 @@
 
 #ifndef PYSQLITE_PREPARE_PROTOCOL_H
 #define PYSQLITE_PREPARE_PROTOCOL_H
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 
 typedef struct

Modules/_sqlite/row.h

@@ -23,6 +23,7 @@
 
 #ifndef PYSQLITE_ROW_H
 #define PYSQLITE_ROW_H
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 
 typedef struct _Row

Modules/_sqlite/statement.h

@@ -23,6 +23,7 @@
 
 #ifndef PYSQLITE_STATEMENT_H
 #define PYSQLITE_STATEMENT_H
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 
 #include "connection.h"

Modules/_sqlite/util.h

@@ -23,6 +23,7 @@
 
 #ifndef PYSQLITE_UTIL_H
 #define PYSQLITE_UTIL_H
+#define PY_SSIZE_T_CLEAN
 #include "Python.h"
 #include "pythread.h"
 #include "sqlite3.h"