diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 13cd0067d..ddb4e858e 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -3303,7 +3303,10 @@ static void processIncludeDirectories(cmTarget *tgt,
         if (!noMessage)
           {
           tgt->GetMakefile()->IssueMessage(messageType, e.str().c_str());
-          return;
+          if (messageType == cmake::FATAL_ERROR)
+            {
+            return;
+            }
           }
         }
 
diff --git a/Tests/IncludeDirectories/CMP0021/CMakeLists.txt b/Tests/IncludeDirectories/CMP0021/CMakeLists.txt
new file mode 100644
index 000000000..0b9aee899
--- /dev/null
+++ b/Tests/IncludeDirectories/CMP0021/CMakeLists.txt
@@ -0,0 +1,14 @@
+
+cmake_policy(SET CMP0021 OLD)
+add_executable(cmp0021exe main.cpp)
+
+if(NOT CMAKE_CURRENT_BINARY_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+  file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/includes")
+  execute_process(COMMAND ${CMAKE_COMMAND} -E
+    copy_directory
+    "${CMAKE_CURRENT_SOURCE_DIR}/includes"
+    "${CMAKE_CURRENT_BINARY_DIR}/includes"
+  )
+endif()
+set_property(TARGET cmp0021exe PROPERTY
+  INCLUDE_DIRECTORIES includes/cmp0021)
diff --git a/Tests/IncludeDirectories/CMP0021/includes/cmp0021/cmp0021.h b/Tests/IncludeDirectories/CMP0021/includes/cmp0021/cmp0021.h
new file mode 100644
index 000000000..3d49b31d5
--- /dev/null
+++ b/Tests/IncludeDirectories/CMP0021/includes/cmp0021/cmp0021.h
@@ -0,0 +1,2 @@
+
+#define CMP0021_DEFINE
diff --git a/Tests/IncludeDirectories/CMP0021/main.cpp b/Tests/IncludeDirectories/CMP0021/main.cpp
new file mode 100644
index 000000000..f886c4629
--- /dev/null
+++ b/Tests/IncludeDirectories/CMP0021/main.cpp
@@ -0,0 +1,11 @@
+
+#include "cmp0021.h"
+
+#ifndef CMP0021_DEFINE
+#error Expected CMP0021_DEFINE
+#endif
+
+int main(int, char **)
+{
+  return 0;
+}
diff --git a/Tests/IncludeDirectories/CMakeLists.txt b/Tests/IncludeDirectories/CMakeLists.txt
index 596a28066..35ad8dc90 100644
--- a/Tests/IncludeDirectories/CMakeLists.txt
+++ b/Tests/IncludeDirectories/CMakeLists.txt
@@ -86,3 +86,7 @@ get_target_property(incs empty_entry_test INCLUDE_DIRECTORIES)
 if (NOT incs STREQUAL ";/one/two")
   message(SEND_ERROR "Empty include_directories entry was not ignored.")
 endif()
+
+if(NOT CMAKE_GENERATOR STREQUAL Xcode AND NOT CMAKE_GENERATOR STREQUAL Ninja)
+  add_subdirectory(CMP0021)
+endif()