From 5558da5d2bb2cb76bf3be57b17f81209b44d0ae1 Mon Sep 17 00:00:00 2001
From: okuoku <mjt@cltn.org>
Date: Sat, 11 Nov 2017 04:24:18 +0900
Subject: [PATCH] main: Silence warning with !SEXP_USE_GREEN_THREADS

---
 main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.c b/main.c
index b9eb04ab..2639181a 100644
--- a/main.c
+++ b/main.c
@@ -94,7 +94,7 @@ static void sexp_make_unblocking (sexp ctx, sexp port) {
       sexp_port_flags(port) |= O_NONBLOCK;
 }
 #else
-#define sexp_make_unblocking(ctx, port) 0
+#define sexp_make_unblocking(ctx, port) (void)0
 #endif
 
 static sexp sexp_meta_env (sexp ctx) {