From d3a64c4e3f8489c05e39240dd17963f2ab0fb283 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 16 Jul 2020 10:37:42 -0400
Subject: Xcode: Explicitly turn off signing in try_compile projects

Fixes: #18407, #20571, #20688
---
 Source/cmGlobalXCodeGenerator.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Source/cmGlobalXCodeGenerator.cxx b/Source/cmGlobalXCodeGenerator.cxx
index 2d47d2c..360807c 100644
--- a/Source/cmGlobalXCodeGenerator.cxx
+++ b/Source/cmGlobalXCodeGenerator.cxx
@@ -3406,6 +3406,12 @@ bool cmGlobalXCodeGenerator::CreateXCodeObjects(
   std::string symroot = cmStrCat(root->GetCurrentBinaryDirectory(), "/build");
   buildSettings->AddAttribute("SYMROOT", this->CreateString(symroot));
 
+  // Inside a try_compile project, do not require signing on any platform.
+  if (this->CMakeInstance->GetIsInTryCompile()) {
+    buildSettings->AddAttribute("CODE_SIGNING_ALLOWED",
+                                this->CreateString("NO"));
+  }
+
   for (auto& config : configs) {
     cmXCodeObject* buildSettingsForCfg = this->CreateFlatClone(buildSettings);
 
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