ENH: Teach message() how to display warnings

This adds message(WARNING) and message(AUTHOR_WARNING) command modes and
fully documents the command behavior in all modes.

1 files changed, 18 insertions, 24 deletions

diff --git a/Source/cmMessageCommand.cxx b/Source/cmMessageCommand.cxx
index a6f5808b6f..7e66e05dba 100644
--- a/Source/cmMessageCommand.cxx
+++ b/Source/cmMessageCommand.cxx
@@ -28,29 +28,27 @@ bool cmMessageCommand
   std::string message;
   std::vector<std::string>::const_iterator i = args.begin();
 
-  bool send_error = false;
-  bool fatal_error = false;
+  cmake::MessageType type = cmake::MESSAGE;
   bool status = false;
-  if (*i == "SEND_ERROR")
+  if (*i == "SEND_ERROR" || *i == "FATAL_ERROR")
     {
-    send_error = true;
+    type = cmake::FATAL_ERROR;
     ++i;
     }
-  else
+  else if (*i == "WARNING")
     {
-    if (*i == "STATUS")
-      {
-      status = true;
-      ++i;
-      }
-    else
-      {
-      if (*i == "FATAL_ERROR")
-        {
-        fatal_error = true;
-        ++i;
-        }
-      }
+    type = cmake::WARNING;
+    ++i;
+    }
+  else if (*i == "AUTHOR_WARNING")
+    {
+    type = cmake::AUTHOR_WARNING;
+    ++i;
+    }
+  else if (*i == "STATUS")
+    {
+    status = true;
+    ++i;
     }
 
   for(;i != args.end(); ++i)
@@ -58,9 +56,9 @@ bool cmMessageCommand
     message += *i;
     }
 
-  if (send_error || fatal_error)
+  if (type != cmake::MESSAGE)
     {
-    this->Makefile->IssueMessage(cmake::FATAL_ERROR, message.c_str());
+    this->Makefile->IssueMessage(type, message.c_str());
     }
   else
     {
@@ -73,10 +71,6 @@ bool cmMessageCommand
       cmSystemTools::Message(message.c_str());
       }
     }
-  if(fatal_error )
-    {
-    cmSystemTools::SetFatalErrorOccured();
-    }
   return true;
 }