From 4220962d18f77399286270607eb135378b71c5b9 Mon Sep 17 00:00:00 2001
From: Pedro Navarro <pnavarro@netflix.com>
Date: Thu, 30 Aug 2018 15:34:24 -0700
Subject: Makefile: Add build events byproducts to clean rules

---
 Source/cmMakefileTargetGenerator.cxx | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/Source/cmMakefileTargetGenerator.cxx b/Source/cmMakefileTargetGenerator.cxx
index 65a69d1..f423560 100644
--- a/Source/cmMakefileTargetGenerator.cxx
+++ b/Source/cmMakefileTargetGenerator.cxx
@@ -189,6 +189,30 @@ void cmMakefileTargetGenerator::WriteTargetBuildRules()
       }
     }
   }
+
+  // Add byproducts from build events to the clean rules
+  if (clean) {
+    std::vector<cmCustomCommand> buildEventCommands =
+      this->GeneratorTarget->GetPreBuildCommands();
+
+    buildEventCommands.insert(
+      buildEventCommands.end(),
+      this->GeneratorTarget->GetPreLinkCommands().begin(),
+      this->GeneratorTarget->GetPreLinkCommands().end());
+    buildEventCommands.insert(
+      buildEventCommands.end(),
+      this->GeneratorTarget->GetPostBuildCommands().begin(),
+      this->GeneratorTarget->GetPostBuildCommands().end());
+
+    for (const auto& be : buildEventCommands) {
+      const std::vector<std::string>& byproducts = be.GetByproducts();
+      for (std::string const& byproduct : byproducts) {
+        this->CleanFiles.push_back(
+          this->LocalGenerator->MaybeConvertToRelativePath(currentBinDir,
+                                                           byproduct));
+      }
+    }
+  }
   std::vector<cmSourceFile const*> headerSources;
   this->GeneratorTarget->GetHeaderSources(headerSources, config);
   this->OSXBundleGenerator->GenerateMacOSXContentStatements(
-- 
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