3 files changed, 22 insertions, 1 deletions
diff --git a/Tests/ExportImport/Export/Interface/CMakeLists.txt b/Tests/ExportImport/Export/Interface/CMakeLists.txt
index 9d4793d..1b653eb 100644
--- a/Tests/ExportImport/Export/Interface/CMakeLists.txt
+++ b/Tests/ExportImport/Export/Interface/CMakeLists.txt
@@ -23,7 +23,10 @@ set_property(TARGET sharedlib PROPERTY INTERFACE_COMPILE_DEFINITIONS "SHAREDLIB_
 add_library(sharediface INTERFACE)
 target_link_libraries(sharediface INTERFACE sharedlib)
 
-install(TARGETS headeronly sharediface
+add_library(use_auto_type INTERFACE)
+target_compile_features(use_auto_type INTERFACE cxx_auto_type)
+
+install(TARGETS headeronly sharediface use_auto_type
   EXPORT expInterface
 )
 install(TARGETS sharedlib
diff --git a/Tests/ExportImport/Import/CMakeLists.txt b/Tests/ExportImport/Import/CMakeLists.txt
index 5e809a2..189f7a2 100644
--- a/Tests/ExportImport/Import/CMakeLists.txt
+++ b/Tests/ExportImport/Import/CMakeLists.txt
@@ -1,4 +1,5 @@
 cmake_minimum_required (VERSION 2.7.20090711)
+cmake_policy(SET CMP0025 NEW)
 project(Import C CXX)
 
 # Import everything in a subdirectory.
diff --git a/Tests/ExportImport/Import/Interface/CMakeLists.txt b/Tests/ExportImport/Import/Interface/CMakeLists.txt
index cf7e2bc..1f30c67 100644
--- a/Tests/ExportImport/Import/Interface/CMakeLists.txt
+++ b/Tests/ExportImport/Import/Interface/CMakeLists.txt
@@ -40,6 +40,23 @@ macro(do_try_compile prefix)
   if(NOT ${prefix}IFACE_TRY_COMPILE)
     message(SEND_ERROR "${prefix} try_compile with IMPORTED INTERFACE target failed!\n\n${OUTPUT}")
   endif()
+
+  if (";${CMAKE_CXX_COMPILE_FEATURES};" MATCHES ";cxx_auto_type;")
+    set(CMAKE_REQUIRED_LIBRARIES ${prefix}::use_auto_type)
+    check_cxx_source_compiles(
+      "
+    int main(int,char**)
+    {
+      auto value = 0;
+      return value;
+    }
+    " ${prefix}IMPORTED_IFACE_CONSTEXPR)
+
+    if(NOT ${prefix}IMPORTED_IFACE_CONSTEXPR)
+      message(SEND_ERROR "${prefix} try_compile with IMPORTED INTERFACE target failed!\n\n${OUTPUT}")
+    endif()
+  endif()
+
 endmacro()
 
 do_try_compile(bld)