take linkage def outside of WITH_THREAD conditional (closes #14569)
diff --git a/Python/pystate.c b/Python/pystate.c
index ddb7d42..70ade98 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -22,6 +22,9 @@
#endif
#endif
+#ifdef __cplusplus
+extern "C" {
+#endif
#ifdef WITH_THREAD
#include "pythread.h"
@@ -30,10 +33,6 @@
#define HEAD_LOCK() PyThread_acquire_lock(head_mutex, WAIT_LOCK)
#define HEAD_UNLOCK() PyThread_release_lock(head_mutex)
-#ifdef __cplusplus
-extern "C" {
-#endif
-
/* The single PyInterpreterState used by this process'
GILState implementation
*/