From 3f1e00506772eaf082f161a4168caa38df142309 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boeckel@kitware.com>
Date: Thu, 2 Feb 2023 21:24:46 -0500
Subject: Tests/RunCMake/CXXModules: declare `forwarding` as `extern "C++"`

It is not part of any module, so it needs to be declared as such.
---
 .../CXXModules/examples/export-bmi-and-interface-build/importable.cxx   | 2 ++
 .../CXXModules/examples/export-bmi-and-interface-install/importable.cxx | 2 ++
 .../RunCMake/CXXModules/examples/export-interface-build/importable.cxx  | 2 ++
 .../CXXModules/examples/export-interface-install/importable.cxx         | 2 ++
 .../examples/export-interface-no-properties-build/importable.cxx        | 2 ++
 .../examples/export-interface-no-properties-install/importable.cxx      | 2 ++
 6 files changed, 12 insertions(+)

diff --git a/Tests/RunCMake/CXXModules/examples/export-bmi-and-interface-build/importable.cxx b/Tests/RunCMake/CXXModules/examples/export-bmi-and-interface-build/importable.cxx
index e0b1872..8dfc41b 100644
--- a/Tests/RunCMake/CXXModules/examples/export-bmi-and-interface-build/importable.cxx
+++ b/Tests/RunCMake/CXXModules/examples/export-bmi-and-interface-build/importable.cxx
@@ -1,6 +1,8 @@
 export module importable;
 
+extern "C++" {
 int forwarding();
+}
 
 export int from_import()
 {
diff --git a/Tests/RunCMake/CXXModules/examples/export-bmi-and-interface-install/importable.cxx b/Tests/RunCMake/CXXModules/examples/export-bmi-and-interface-install/importable.cxx
index e0b1872..8dfc41b 100644
--- a/Tests/RunCMake/CXXModules/examples/export-bmi-and-interface-install/importable.cxx
+++ b/Tests/RunCMake/CXXModules/examples/export-bmi-and-interface-install/importable.cxx
@@ -1,6 +1,8 @@
 export module importable;
 
+extern "C++" {
 int forwarding();
+}
 
 export int from_import()
 {
diff --git a/Tests/RunCMake/CXXModules/examples/export-interface-build/importable.cxx b/Tests/RunCMake/CXXModules/examples/export-interface-build/importable.cxx
index e0b1872..8dfc41b 100644
--- a/Tests/RunCMake/CXXModules/examples/export-interface-build/importable.cxx
+++ b/Tests/RunCMake/CXXModules/examples/export-interface-build/importable.cxx
@@ -1,6 +1,8 @@
 export module importable;
 
+extern "C++" {
 int forwarding();
+}
 
 export int from_import()
 {
diff --git a/Tests/RunCMake/CXXModules/examples/export-interface-install/importable.cxx b/Tests/RunCMake/CXXModules/examples/export-interface-install/importable.cxx
index e0b1872..8dfc41b 100644
--- a/Tests/RunCMake/CXXModules/examples/export-interface-install/importable.cxx
+++ b/Tests/RunCMake/CXXModules/examples/export-interface-install/importable.cxx
@@ -1,6 +1,8 @@
 export module importable;
 
+extern "C++" {
 int forwarding();
+}
 
 export int from_import()
 {
diff --git a/Tests/RunCMake/CXXModules/examples/export-interface-no-properties-build/importable.cxx b/Tests/RunCMake/CXXModules/examples/export-interface-no-properties-build/importable.cxx
index e0b1872..8dfc41b 100644
--- a/Tests/RunCMake/CXXModules/examples/export-interface-no-properties-build/importable.cxx
+++ b/Tests/RunCMake/CXXModules/examples/export-interface-no-properties-build/importable.cxx
@@ -1,6 +1,8 @@
 export module importable;
 
+extern "C++" {
 int forwarding();
+}
 
 export int from_import()
 {
diff --git a/Tests/RunCMake/CXXModules/examples/export-interface-no-properties-install/importable.cxx b/Tests/RunCMake/CXXModules/examples/export-interface-no-properties-install/importable.cxx
index e0b1872..8dfc41b 100644
--- a/Tests/RunCMake/CXXModules/examples/export-interface-no-properties-install/importable.cxx
+++ b/Tests/RunCMake/CXXModules/examples/export-interface-no-properties-install/importable.cxx
@@ -1,6 +1,8 @@
 export module importable;
 
+extern "C++" {
 int forwarding();
+}
 
 export int from_import()
 {
-- 
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