From ddc030f5ca20d4519559e052b7c5538cf40f34f6 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Tue, 18 May 2021 11:08:55 -0400
Subject: cmGlobalNinjaGenerator: Record implicit outputs as known too

---
 Source/cmGlobalNinjaGenerator.cxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Source/cmGlobalNinjaGenerator.cxx b/Source/cmGlobalNinjaGenerator.cxx
index 565b951..a1a17c3 100644
--- a/Source/cmGlobalNinjaGenerator.cxx
+++ b/Source/cmGlobalNinjaGenerator.cxx
@@ -226,6 +226,9 @@ void cmGlobalNinjaGenerator::WriteBuild(std::ostream& os,
       buildStr += " |";
       for (std::string const& implicitOut : build.ImplicitOuts) {
         buildStr += cmStrCat(' ', this->EncodePath(implicitOut));
+        if (this->ComputingUnknownDependencies) {
+          this->CombinedBuildOutputs.insert(implicitOut);
+        }
       }
     }
     buildStr += ':';
-- 
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