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, 5 insertions, 0 deletions

diff --git a/Source/cmake.h b/Source/cmake.h
index 8630607..f599c31 100644
--- a/Source/cmake.h
+++ b/Source/cmake.h
@@ -54,6 +54,7 @@ class cmFileTimeComparison;
 class cmExternalMakefileProjectGenerator;
 class cmDocumentationSection;
 class cmPolicies;
+class cmListFileBacktrace;
 
 class cmake
 {
@@ -349,6 +350,10 @@ class cmake
     {
       this->SuppressDevWarnings = v;
     }
+
+  /** Display a message to the user.  */
+  void IssueMessage(cmake::MessageType t, std::string const& text,
+                    cmListFileBacktrace const& backtrace);
 protected:
   void InitializeProperties();
   int HandleDeleteCacheVariables(const char* var);