From ef97fbe6c203e6504cae9282c3b826d9e4d84147 Mon Sep 17 00:00:00 2001
From: Cristian Adam <cristian.adam@gmail.com>
Date: Wed, 5 Aug 2020 14:05:56 +0200
Subject: PCH: Avoid unnecessary 30s delay on MSBuild Generator with REUSE_FROM

Fix logic added by commit 1f791eb160 (Multi-Ninja: Fix reusable PCHs for
MSVC, 2020-05-24, v3.18.0-rc1~72^2) to avoid an unnecessary delay.

Fixes: #21054
---
 Source/cmLocalGenerator.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index e26dc94..c15ca7c 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -2789,7 +2789,7 @@ void cmLocalGenerator::CopyPchCompilePdb(
     }
     file << "      break()\n"
          << "    endif()\n";
-    file << "  else()\n"
+    file << "  elseif(NOT EXISTS \"" << from_file << "\")\n"
          << "    execute_process(COMMAND ${CMAKE_COMMAND}"
          << " -E sleep 1)\n"
          << "  endif()\n";
-- 
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