From c6edcf1c710e4aaf1cafdbf8e86fe209b57bdeb8 Mon Sep 17 00:00:00 2001
From: fanquake <fanquake@gmail.com>
Date: Tue, 6 Apr 2021 14:43:33 +0800
Subject: [PATCH] build: suppress libevent warnings if supressing external
 warnings

---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index c3eabad131..4c8bc4921b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1486,6 +1486,10 @@ if test x$build_bitcoin_cli$build_bitcoind$bitcoin_enable_qt$use_tests$use_bench
   if test x$TARGET_OS != xwindows; then
     PKG_CHECK_MODULES([EVENT_PTHREADS], [libevent_pthreads >= 2.0.21],, [AC_MSG_ERROR([libevent_pthreads version 2.0.21 or greater not found.])])
   fi
+
+  if test x$suppress_external_warnings != xno; then
+    EVENT_CFLAGS=SUPPRESS_WARNINGS($EVENT_CFLAGS)
+  fi
 fi
 
 dnl QR Code encoding library check