Change PyInit_plpy to external linkage

Module initialization functions in Python 3 must have external
linkage, because PyMODINIT_FUNC does dllexport on Windows-like
platforms.  Without this change, the build with Python 3 fails on
Windows.

diff --git a/src/pl/plpython/plpython.c b/src/pl/plpython/plpython.c
index 54af7f2a67c83b308cab2992856341ab3ca20b6c..19037d1fb9ad56d96e9ccc88a5881ce7e633e0aa 100644 (file)
--- a/src/pl/plpython/plpython.c
+++ b/src/pl/plpython/plpython.c
@@ -3205,7 +3205,13 @@ PLy_spi_execute_fetch_result(SPITupleTable *tuptable, int rows, int status)
  */
 
 #if PY_MAJOR_VERSION >= 3
-static PyMODINIT_FUNC
+/*
+ * Must have external linkage, because PyMODINIT_FUNC does dllexport on
+ * Windows-like platforms.
+ */
+PyMODINIT_FUNC PyInit_plpy(void);
+
+PyMODINIT_FUNC
 PyInit_plpy(void)
 {
        return PyModule_Create(&PLy_module);