Remove duplicated function declaration.
Make _pagesize static.
diff --git a/Modules/_ctypes/ctypes.h b/Modules/_ctypes/ctypes.h
index d5cb326..6de9a81 100644
--- a/Modules/_ctypes/ctypes.h
+++ b/Modules/_ctypes/ctypes.h
@@ -351,7 +351,6 @@
};
extern PyTypeObject PyCArg_Type;
-extern PyCArgObject *new_CArgObject(void);
#define PyCArg_CheckExact(v) ((v)->ob_type == &PyCArg_Type)
extern PyCArgObject *new_CArgObject(void);
diff --git a/Modules/_ctypes/malloc_closure.c b/Modules/_ctypes/malloc_closure.c
index 73fc0d9..105935e 100644
--- a/Modules/_ctypes/malloc_closure.c
+++ b/Modules/_ctypes/malloc_closure.c
@@ -32,7 +32,7 @@
} ITEM;
static ITEM *free_list;
-int _pagesize;
+static int _pagesize;
static void more_core(void)
{