From 4dde0bc8ef1d953b8e4b13a2e465d756b5274933 Mon Sep 17 00:00:00 2001
From: Zsolt Parragi <zsolt.parragi@cancellar.hu>
Date: Sat, 28 Jan 2017 17:10:02 +0100
Subject: VS: Fix WINDOWS_EXPORT_ALL_SYMBOLS for external objects

Teach Visual Studio generators to include external object files in the
list of objects whose symbols are to be exported.  The Makefile and
Ninja generators already did this.
---
 Source/cmGlobalVisualStudioGenerator.cxx | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Source/cmGlobalVisualStudioGenerator.cxx b/Source/cmGlobalVisualStudioGenerator.cxx
index 5edb81f..cc2536c 100644
--- a/Source/cmGlobalVisualStudioGenerator.cxx
+++ b/Source/cmGlobalVisualStudioGenerator.cxx
@@ -856,6 +856,14 @@ void cmGlobalVisualStudioGenerator::AddSymbolExportCommand(
     std::string objFile = obj_dir + map_it->second;
     objs.push_back(objFile);
   }
+  std::vector<cmSourceFile const*> externalObjectSources;
+  gt->GetExternalObjects(externalObjectSources, configName);
+  for (std::vector<cmSourceFile const*>::const_iterator it =
+         externalObjectSources.begin();
+       it != externalObjectSources.end(); ++it) {
+    objs.push_back((*it)->GetFullPath());
+  }
+
   gt->UseObjectLibraries(objs, configName);
   for (std::vector<std::string>::iterator it = objs.begin(); it != objs.end();
        ++it) {
-- 
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