Silence a warning about an unsed variable in debug builds
diff --git a/Python/ceval.c b/Python/ceval.c
index e218d05..d74d017 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -665,8 +665,9 @@
#define STACKADJ(n) { (void)(BASIC_STACKADJ(n), \
lltrace && prtrace(TOP(), "stackadj")); \
assert(STACK_LEVEL() <= co->co_stacksize); }
-#define EXT_POP(STACK_POINTER) (lltrace && prtrace((STACK_POINTER)[-1], \
- "ext_pop"), *--(STACK_POINTER))
+#define EXT_POP(STACK_POINTER) ((void)(lltrace && \
+ prtrace((STACK_POINTER)[-1], "ext_pop")), \
+ *--(STACK_POINTER))
#else
#define PUSH(v) BASIC_PUSH(v)
#define POP() BASIC_POP()