ENH: Improve new error/warning message generation

  - Add cmListFileBacktrace to record stack traces
  - Move main IssueMessage method to the cmake class instance
    (make the backtrace an explicit argument)
  - Change cmMakefile::IssueMessage to construct a backtrace
    and call the cmake instance version
  - Record a backtrace at the point a target is created
    (useful later for messages issued by generators)

1 files changed, 4 insertions, 0 deletions

diff --git a/Source/cmTarget.h b/Source/cmTarget.h
index 1b430e6..a8b2863 100644
--- a/Source/cmTarget.h
+++ b/Source/cmTarget.h
@@ -25,6 +25,7 @@ class cmMakefile;
 class cmSourceFile;
 class cmGlobalGenerator;
 class cmComputeLinkInformation;
+class cmListFileBacktrace;
 
 struct cmTargetLinkInformationMap:
   public std::map<cmStdString, cmComputeLinkInformation*>
@@ -374,6 +375,9 @@ public:
   /** Return whether this target is an executable Bundle on Apple.  */
   bool IsAppBundleOnApple();
 
+  /** Get a backtrace from the creation of the target.  */
+  cmListFileBacktrace const& GetBacktrace() const;
+
 private:
   /**
    * A list of direct dependencies. Use in conjunction with DependencyMap.