"#if WITH_THREAD" is incorrect; must be #ifdef instead; WITH_THREAD
isn't always set to an integer value when it's defined.
diff --git a/Parser/myreadline.c b/Parser/myreadline.c
index ff9fc91..979e34f 100644
--- a/Parser/myreadline.c
+++ b/Parser/myreadline.c
@@ -22,7 +22,7 @@
PyThreadState* _PyOS_ReadlineTState;
-#if WITH_THREAD
+#ifdef WITH_THREAD
#include "pythread.h"
static PyThread_type_lock _PyOS_ReadlineLock = NULL;
#endif
@@ -181,7 +181,7 @@
#endif
}
-#if WITH_THREAD
+#ifdef WITH_THREAD
if (_PyOS_ReadlineLock == NULL) {
_PyOS_ReadlineLock = PyThread_allocate_lock();
}
@@ -189,7 +189,7 @@
_PyOS_ReadlineTState = PyThreadState_GET();
Py_BEGIN_ALLOW_THREADS
-#if WITH_THREAD
+#ifdef WITH_THREAD
PyThread_acquire_lock(_PyOS_ReadlineLock, 1);
#endif
@@ -205,7 +205,7 @@
prompt);
Py_END_ALLOW_THREADS
-#if WITH_THREAD
+#ifdef WITH_THREAD
PyThread_release_lock(_PyOS_ReadlineLock);
#endif