Fix -Wstrict-prototypes warning in thread_pthread.h. (GH-21477)
(cherry picked from commit ea62a4bd54421693ed6b24a1bbd18ebed3bdb8f8)
Co-authored-by: Benjamin Peterson <benjamin@python.org>
diff --git a/Python/thread_pthread.h b/Python/thread_pthread.h
index cf4e854..e6910b3 100644
--- a/Python/thread_pthread.h
+++ b/Python/thread_pthread.h
@@ -134,7 +134,7 @@
static pthread_condattr_t *condattr_monotonic = NULL;
static void
-init_condattr()
+init_condattr(void)
{
#ifdef CONDATTR_MONOTONIC
static pthread_condattr_t ca;