plpython: add missing plpython.h include to plpy_plpymodule.h

The include was missing before 9b7e24a2cb3, but starting with that commit the
missing include causes cpluspluscheck to fail because the use of
PyMODINIT_FUNC isn't incidentally protected by an ifdef anymore.

Discussion: https://postgr.es/m/20220308045916.7baapelbgftoqeop@alap3.anarazel.de

diff --git a/src/pl/plpython/plpy_plpymodule.h b/src/pl/plpython/plpy_plpymodule.h
index ad6436aca7841ad1ad92c8660ae837a0c3563fad..1ca3823daf283027ba76d478375caf951e67abce 100644 (file)
--- a/src/pl/plpython/plpy_plpymodule.h
+++ b/src/pl/plpython/plpy_plpymodule.h
@@ -5,6 +5,7 @@
 #ifndef PLPY_PLPYMODULE_H
 #define PLPY_PLPYMODULE_H
 
+#include "plpython.h"
 #include "utils/hsearch.h"
 
 /* A hash table mapping sqlstates to exceptions, for speedy lookup */