From 469813cce049e18357ab274316aac0cdb4ca6688 Mon Sep 17 00:00:00 2001
From: Ruslan Baratov <ruslan_baratov@yahoo.com>
Date: Wed, 10 May 2017 15:26:16 +0300
Subject: CMP0069: Suppress warning if we are in 'try_compile'

Fixes: #16855
---
 Source/cmGeneratorTarget.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index 3f50e32..073bde2 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -489,7 +489,9 @@ bool cmGeneratorTarget::IsIPOEnabled(const std::string& config) const
       // problem is already reported, no need to issue a message
       return false;
     }
-    if (cmp0069 == cmPolicies::WARN) {
+    const bool in_try_compile =
+      this->LocalGenerator->GetCMakeInstance()->GetIsInTryCompile();
+    if (cmp0069 == cmPolicies::WARN && !in_try_compile) {
       std::ostringstream w;
       w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0069) << "\n";
       w << "INTERPROCEDURAL_OPTIMIZATION property will be ignored for target "
-- 
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