Add set_property option: DEPRECATION

Add a new property flag for a target which contains a message regarding
deprecation status.

Add a warning at "Generate" time if a linked target is marked as
deprecated.

Expand ExportImport test to ensure that new property is being set and
passed correctly.  Ensure that the message is shown during the
"Generate" step run of the ExportImport test.

1 files changed, 7 insertions, 0 deletions

diff --git a/Source/cmGeneratorTarget.h b/Source/cmGeneratorTarget.h
index eabd3fa9f6..0a72cbea7a 100644
--- a/Source/cmGeneratorTarget.h
+++ b/Source/cmGeneratorTarget.h
@@ -250,6 +250,13 @@ public:
   std::string GetAppBundleDirectory(const std::string& config,
                                     BundleDirectoryLevel level) const;
 
+  /** Return whether this target is marked as deprecated by the
+      maintainer  */
+  bool IsDeprecated() const;
+
+  /** Returns the deprecation message provided by the maintainer */
+  std::string GetDeprecation() const;
+
   /** Return whether this target is an executable Bundle, a framework
       or CFBundle on Apple.  */
   bool IsBundleOnApple() const;