bpo-33012: Fix invalid function cast warnings with gcc 8 for METH_NOARGS. (GH-6030)

METH_NOARGS functions need only a single argument but they are cast
into a PyCFunction, which takes two arguments.  This triggers an
invalid function cast warning in gcc8 due to the argument mismatch.
Fix this by adding a dummy unused argument.

1 files changed, 5 insertions, 5 deletions

diff --git a/Modules/_multiprocessing/semaphore.c b/Modules/_multiprocessing/semaphore.c
index 0092b13..b1d3a21 100644
--- a/Modules/_multiprocessing/semaphore.c
+++ b/Modules/_multiprocessing/semaphore.c
@@ -518,20 +518,20 @@ semlock_dealloc(SemLockObject* self)
 }
 
 static PyObject *
-semlock_count(SemLockObject *self)
+semlock_count(SemLockObject *self, PyObject *Py_UNUSED(ignored))
 {
     return PyLong_FromLong((long)self->count);
 }
 
 static PyObject *
-semlock_ismine(SemLockObject *self)
+semlock_ismine(SemLockObject *self, PyObject *Py_UNUSED(ignored))
 {
     /* only makes sense for a lock */
     return PyBool_FromLong(ISMINE(self));
 }
 
 static PyObject *
-semlock_getvalue(SemLockObject *self)
+semlock_getvalue(SemLockObject *self, PyObject *Py_UNUSED(ignored))
 {
 #ifdef HAVE_BROKEN_SEM_GETVALUE
     PyErr_SetNone(PyExc_NotImplementedError);
@@ -549,7 +549,7 @@ semlock_getvalue(SemLockObject *self)
 }
 
 static PyObject *
-semlock_iszero(SemLockObject *self)
+semlock_iszero(SemLockObject *self, PyObject *Py_UNUSED(ignored))
 {
 #ifdef HAVE_BROKEN_SEM_GETVALUE
     if (sem_trywait(self->handle) < 0) {
@@ -570,7 +570,7 @@ semlock_iszero(SemLockObject *self)
 }
 
 static PyObject *
-semlock_afterfork(SemLockObject *self)
+semlock_afterfork(SemLockObject *self, PyObject *Py_UNUSED(ignored))
 {
     self->count = 0;
     Py_RETURN_NONE;