From 1ddffffc088d1376579c3debec7db95079474e41 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Devernay?= <frederic.devernay@m4x.org>
Date: Thu, 7 Jun 2018 16:00:12 +0200
Subject: [PATCH] ImageEffect::clearPersistentMessage: clearPersistentMessage
 contains garbage on Resolve

---
 Support/Library/ofxsImageEffect.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Support/Library/ofxsImageEffect.cpp b/Support/Library/ofxsImageEffect.cpp
index afb453641..9718f76c4 100644
--- a/Support/Library/ofxsImageEffect.cpp
+++ b/Support/Library/ofxsImageEffect.cpp
@@ -2642,8 +2642,10 @@ namespace OFX {
   }
 
   OFX::Message::MessageReplyEnum ImageEffect::clearPersistentMessage(bool throwIfMissing)
-  {   
-    if (!OFX::Private::gMessageSuiteV2 || !OFX::Private::gMessageSuiteV2->clearPersistentMessage) {
+  {
+    // If there is no setPersistentMessage, clearPersistentMessage has no reason to exist.
+    // (fixes crash on Resolve)
+    if (!OFX::Private::gMessageSuiteV2 || !OFX::Private::gMessageSuiteV2->setPersistentMessage || !OFX::Private::gMessageSuiteV2->clearPersistentMessage) {
       if (throwIfMissing) {
         OFX::Log::error(true, "OfxMessageSuiteV2::clearPersistentMessage() not available");
         throwHostMissingSuiteException("clearPersistentMessage");