Factor out enum MessageType into dedicated header

Reduce the number of files relying on `cmake.h`.

Source/CMakeLists.txt

@@ -298,6 +298,7 @@ set(SRCS
   cmMakefileExecutableTargetGenerator.cxx
   cmMakefileLibraryTargetGenerator.cxx
   cmMakefileUtilityTargetGenerator.cxx
+  cmMessageType.h
   cmMessenger.cxx
   cmMessenger.h
   cmMSVC60LinkLineComputer.cxx

Source/CTest/cmCTestBuildCommand.cxx

@@ -7,6 +7,7 @@
 #include "cmCTestGenericHandler.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmSystemTools.h"
 #include "cmake.h"
 
@@ -95,7 +96,7 @@ cmCTestGenericHandler* cmCTestBuildCommand::InitializeHandler()
           std::string e = "could not create generator named \"";
           e += cmakeGeneratorName;
           e += "\"";
-          this->Makefile->IssueMessage(cmake::FATAL_ERROR, e);
+          this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e);
           cmSystemTools::SetFatalErrorOccured();
           return nullptr;
         }

Source/CTest/cmCTestHandlerCommand.cxx

@@ -5,9 +5,9 @@
 #include "cmCTest.h"
 #include "cmCTestGenericHandler.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmSystemTools.h"
 #include "cmWorkingDirectory.h"
-#include "cmake.h"
 
 #include <cstring>
 #include <sstream>
@@ -289,7 +289,7 @@ bool cmCTestHandlerCommand::CheckArgumentValue(std::string const& arg)
     if (this->Values[k]) {
       std::ostringstream e;
       e << "Called with more than one value for " << this->Arguments[k];
-      this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+      this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
       this->ArgumentDoing = ArgumentDoingError;
       return true;
     }

Source/CTest/cmCTestSubmitCommand.cxx

@@ -6,8 +6,8 @@
 #include "cmCTestGenericHandler.h"
 #include "cmCTestSubmitHandler.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmSystemTools.h"
-#include "cmake.h"
 
 #include <sstream>
 
@@ -203,7 +203,7 @@ bool cmCTestSubmitCommand::CheckArgumentValue(std::string const& arg)
     } else {
       std::ostringstream e;
       e << "Part name \"" << arg << "\" is invalid.";
-      this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+      this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
       this->ArgumentDoing = ArgumentDoingError;
     }
     return true;
@@ -216,7 +216,7 @@ bool cmCTestSubmitCommand::CheckArgumentValue(std::string const& arg)
       std::ostringstream e;
       e << "File \"" << arg << "\" does not exist. Cannot submit "
         << "a non-existent file.";
-      this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+      this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
       this->ArgumentDoing = ArgumentDoingError;
     }
     return true;

Source/CTest/cmCTestUploadCommand.cxx

@@ -9,8 +9,8 @@
 #include "cmCTestGenericHandler.h"
 #include "cmCTestUploadHandler.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmSystemTools.h"
-#include "cmake.h"
 
 cmCTestGenericHandler* cmCTestUploadCommand::InitializeHandler()
 {
@@ -58,7 +58,7 @@ bool cmCTestUploadCommand::CheckArgumentValue(std::string const& arg)
     std::ostringstream e;
     e << "File \"" << arg << "\" does not exist. Cannot submit "
       << "a non-existent file.";
-    this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+    this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
     this->ArgumentDoing = ArgumentDoingError;
     return false;
   }

Source/cmAddCustomCommandCommand.cxx

@@ -10,11 +10,11 @@
 #include "cmCustomCommandLines.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmPolicies.h"
 #include "cmSourceFile.h"
 #include "cmSystemTools.h"
 #include "cmTarget.h"
-#include "cmake.h"
 
 class cmExecutionStatus;
 
@@ -361,7 +361,7 @@ bool cmAddCustomCommandCommand::InitialPass(
   } else {
     bool issueMessage = true;
     std::ostringstream e;
-    cmake::MessageType messageType = cmake::AUTHOR_WARNING;
+    MessageType messageType = MessageType::AUTHOR_WARNING;
     switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0050)) {
       case cmPolicies::WARN:
         e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0050) << "\n";
@@ -372,7 +372,7 @@ bool cmAddCustomCommandCommand::InitialPass(
       case cmPolicies::REQUIRED_ALWAYS:
       case cmPolicies::REQUIRED_IF_USED:
       case cmPolicies::NEW:
-        messageType = cmake::FATAL_ERROR;
+        messageType = MessageType::FATAL_ERROR;
         break;
     }
 
@@ -380,7 +380,7 @@ bool cmAddCustomCommandCommand::InitialPass(
       e << "The SOURCE signatures of add_custom_command are no longer "
            "supported.";
       this->Makefile->IssueMessage(messageType, e.str());
-      if (messageType == cmake::FATAL_ERROR) {
+      if (messageType == MessageType::FATAL_ERROR) {
         return false;
       }
     }

Source/cmAddCustomTargetCommand.cxx

@@ -9,10 +9,10 @@
 #include "cmGeneratorExpression.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmStateTypes.h"
 #include "cmSystemTools.h"
 #include "cmTarget.h"
-#include "cmake.h"
 
 class cmExecutionStatus;
 
@@ -183,19 +183,19 @@ bool cmAddCustomTargetCommand::InitialPass(
 
   if (commandLines.empty() && !byproducts.empty()) {
     this->Makefile->IssueMessage(
-      cmake::FATAL_ERROR,
+      MessageType::FATAL_ERROR,
       "BYPRODUCTS may not be specified without any COMMAND");
     return true;
   }
   if (commandLines.empty() && uses_terminal) {
     this->Makefile->IssueMessage(
-      cmake::FATAL_ERROR,
+      MessageType::FATAL_ERROR,
       "USES_TERMINAL may not be specified without any COMMAND");
     return true;
   }
   if (commandLines.empty() && command_expand_lists) {
     this->Makefile->IssueMessage(
-      cmake::FATAL_ERROR,
+      MessageType::FATAL_ERROR,
       "COMMAND_EXPAND_LISTS may not be specified without any COMMAND");
     return true;
   }

Source/cmAddDependenciesCommand.cxx

@@ -5,8 +5,8 @@
 #include <sstream>
 
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmTarget.h"
-#include "cmake.h"
 
 class cmExecutionStatus;
 
@@ -24,7 +24,7 @@ bool cmAddDependenciesCommand::InitialPass(
     std::ostringstream e;
     e << "Cannot add target-level dependencies to alias target \""
       << target_name << "\".\n";
-    this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+    this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
   }
   if (cmTarget* target = this->Makefile->FindTargetToUse(target_name)) {
     std::vector<std::string>::const_iterator s = args.begin();
@@ -40,7 +40,7 @@ bool cmAddDependenciesCommand::InitialPass(
       << "by the add_executable, add_library, or add_custom_target commands.  "
       << "If you want to add file-level dependencies see the DEPENDS option "
       << "of the add_custom_target and add_custom_command commands.";
-    this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+    this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
   }
 
   return true;

Source/cmAddLibraryCommand.cxx

@@ -7,11 +7,11 @@
 #include "cmGeneratorExpression.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmState.h"
 #include "cmStateTypes.h"
 #include "cmSystemTools.h"
 #include "cmTarget.h"
-#include "cmake.h"
 
 class cmExecutionStatus;
 
@@ -259,7 +259,7 @@ bool cmAddLibraryCommand::InitialPass(std::vector<std::string> const& args,
       << (type == cmStateEnums::SHARED_LIBRARY ? "SHARED" : "MODULE")
       << " option but the target platform does not support dynamic linking. "
          "Building a STATIC library instead. This may lead to problems.";
-    this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w.str());
+    this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, w.str());
     type = cmStateEnums::STATIC_LIBRARY;
   }
 
@@ -275,7 +275,7 @@ bool cmAddLibraryCommand::InitialPass(std::vector<std::string> const& args,
       if (!this->Makefile->GetGlobalGenerator()->HasKnownObjectFileLocation(
             &reason)) {
         this->Makefile->IssueMessage(
-          cmake::FATAL_ERROR,
+          MessageType::FATAL_ERROR,
           "The OBJECT library type may not be used for IMPORTED libraries" +
             reason + ".");
         return true;
@@ -307,7 +307,7 @@ bool cmAddLibraryCommand::InitialPass(std::vector<std::string> const& args,
   // A non-imported target may not have UNKNOWN type.
   if (type == cmStateEnums::UNKNOWN_LIBRARY) {
     this->Makefile->IssueMessage(
-      cmake::FATAL_ERROR,
+      MessageType::FATAL_ERROR,
       "The UNKNOWN library type may be used only for IMPORTED libraries.");
     return true;
   }

Source/cmBreakCommand.cxx

@@ -6,8 +6,8 @@
 
 #include "cmExecutionStatus.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmPolicies.h"
-#include "cmake.h"
 
 // cmBreakCommand
 bool cmBreakCommand::InitialPass(std::vector<std::string> const& args,
@@ -16,7 +16,7 @@ bool cmBreakCommand::InitialPass(std::vector<std::string> const& args,
   if (!this->Makefile->IsLoopBlock()) {
     bool issueMessage = true;
     std::ostringstream e;
-    cmake::MessageType messageType = cmake::AUTHOR_WARNING;
+    MessageType messageType = MessageType::AUTHOR_WARNING;
     switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0055)) {
       case cmPolicies::WARN:
         e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0055) << "\n";
@@ -27,7 +27,7 @@ bool cmBreakCommand::InitialPass(std::vector<std::string> const& args,
       case cmPolicies::REQUIRED_ALWAYS:
       case cmPolicies::REQUIRED_IF_USED:
       case cmPolicies::NEW:
-        messageType = cmake::FATAL_ERROR;
+        messageType = MessageType::FATAL_ERROR;
         break;
     }
 
@@ -35,7 +35,7 @@ bool cmBreakCommand::InitialPass(std::vector<std::string> const& args,
       e << "A BREAK command was found outside of a proper "
            "FOREACH or WHILE loop scope.";
       this->Makefile->IssueMessage(messageType, e.str());
-      if (messageType == cmake::FATAL_ERROR) {
+      if (messageType == MessageType::FATAL_ERROR) {
         return false;
       }
     }
@@ -46,7 +46,7 @@ bool cmBreakCommand::InitialPass(std::vector<std::string> const& args,
   if (!args.empty()) {
     bool issueMessage = true;
     std::ostringstream e;
-    cmake::MessageType messageType = cmake::AUTHOR_WARNING;
+    MessageType messageType = MessageType::AUTHOR_WARNING;
     switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0055)) {
       case cmPolicies::WARN:
         e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0055) << "\n";
@@ -57,14 +57,14 @@ bool cmBreakCommand::InitialPass(std::vector<std::string> const& args,
       case cmPolicies::REQUIRED_ALWAYS:
       case cmPolicies::REQUIRED_IF_USED:
       case cmPolicies::NEW:
-        messageType = cmake::FATAL_ERROR;
+        messageType = MessageType::FATAL_ERROR;
         break;
     }
 
     if (issueMessage) {
       e << "The BREAK command does not accept any arguments.";
       this->Makefile->IssueMessage(messageType, e.str());
-      if (messageType == cmake::FATAL_ERROR) {
+      if (messageType == MessageType::FATAL_ERROR) {
         return false;
       }
     }

Source/cmBuildCommand.cxx

@@ -6,9 +6,9 @@
 
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmStateTypes.h"
 #include "cmSystemTools.h"
-#include "cmake.h"
 
 class cmExecutionStatus;
 
@@ -84,7 +84,7 @@ bool cmBuildCommand::MainSignature(std::vector<std::string> const& args)
 
   if (!project_name.empty()) {
     this->Makefile->IssueMessage(
-      cmake::AUTHOR_WARNING,
+      MessageType::AUTHOR_WARNING,
       "Ignoring PROJECT_NAME option because it has no effect.");
   }
 

Source/cmCMakeMinimumRequired.cxx

@@ -6,9 +6,9 @@
 #include <stdio.h>
 
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmSystemTools.h"
 #include "cmVersion.h"
-#include "cmake.h"
 
 class cmExecutionStatus;
 
@@ -96,7 +96,7 @@ bool cmCMakeMinimumRequired::InitialPass(std::vector<std::string> const& args,
     e << "CMake " << version_min
       << " or higher is required.  You are running version "
       << cmVersion::GetCMakeVersion();
-    this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+    this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
     cmSystemTools::SetFatalErrorOccured();
     return true;
   }
@@ -108,7 +108,7 @@ bool cmCMakeMinimumRequired::InitialPass(std::vector<std::string> const& args,
 
   if (required_major < 2 || (required_major == 2 && required_minor < 4)) {
     this->Makefile->IssueMessage(
-      cmake::AUTHOR_WARNING,
+      MessageType::AUTHOR_WARNING,
       "Compatibility with CMake < 2.4 is not supported by CMake >= 3.0.");
     this->Makefile->SetPolicyVersion("2.4", version_max);
   } else {

Source/cmCMakePolicyCommand.cxx

@@ -5,10 +5,10 @@
 #include <sstream>
 
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmPolicies.h"
 #include "cmState.h"
 #include "cmStateTypes.h"
-#include "cmake.h"
 
 class cmExecutionStatus;
 
@@ -146,7 +146,7 @@ bool cmCMakePolicyCommand::HandleGetMode(std::vector<std::string> const& args)
           << "The call to cmake_policy(GET " << id << " ...) at which this "
           << "error appears requests the policy, and this version of CMake "
           << "requires that the policy be set to NEW before it is checked.";
-        this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+        this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
       }
   }
 

Source/cmCPluginAPI.cxx

@@ -347,7 +347,7 @@ static void addLinkLibrary(cmMakefile* mf, std::string const& target,
     std::ostringstream e;
     e << "Attempt to add link library \"" << lib << "\" to target \"" << target
       << "\" which is not built in this directory.";
-    mf->IssueMessage(cmake::FATAL_ERROR, e.str());
+    mf->IssueMessage(MessageType::FATAL_ERROR, e.str());
     return;
   }
 
@@ -362,7 +362,7 @@ static void addLinkLibrary(cmMakefile* mf, std::string const& target,
       << " may not be linked into another target.  "
       << "One may link only to STATIC or SHARED libraries, or "
       << "to executables with the ENABLE_EXPORTS property set.";
-    mf->IssueMessage(cmake::FATAL_ERROR, e.str());
+    mf->IssueMessage(MessageType::FATAL_ERROR, e.str());
   }
 
   t->AddLinkLibrary(*mf, lib, llt);

Source/cmCacheManager.cxx

@@ -11,6 +11,7 @@
 #include <string>
 
 #include "cmGeneratedFileStream.h"
+#include "cmMessageType.h"
 #include "cmMessenger.h"
 #include "cmState.h"
 #include "cmSystemTools.h"
@@ -478,7 +479,7 @@ void cmCacheManager::OutputNewlineTruncationWarning(std::ostream& fout,
       std::string message = "Value of ";
       message += key;
       message += " contained a newline; truncating";
-      messenger->IssueMessage(cmake::WARNING, message);
+      messenger->IssueMessage(MessageType::WARNING, message);
     }
 
     std::string comment = "WARNING: Value of ";

Source/cmComputeLinkInformation.cxx

@@ -8,6 +8,7 @@
 #include "cmGlobalGenerator.h"
 #include "cmLocalGenerator.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmOrderDirectories.h"
 #include "cmOutputConverter.h"
 #include "cmPolicies.h"
@@ -522,7 +523,7 @@ bool cmComputeLinkInformation::Compute()
       "name."
       ;
     /* clang-format on */
-    this->CMakeInstance->IssueMessage(cmake::AUTHOR_WARNING, w.str(),
+    this->CMakeInstance->IssueMessage(MessageType::AUTHOR_WARNING, w.str(),
                                       this->Target->GetBacktrace());
   }
 
@@ -1382,7 +1383,7 @@ void cmComputeLinkInformation::HandleBadFullItem(std::string const& item,
           << "  " << item << "\n"
           << "which is a full-path but not a valid library file name.";
         /* clang-format on */
-        this->CMakeInstance->IssueMessage(cmake::AUTHOR_WARNING, w.str(),
+        this->CMakeInstance->IssueMessage(MessageType::AUTHOR_WARNING, w.str(),
                                           this->Target->GetBacktrace());
       }
     }
@@ -1401,7 +1402,7 @@ void cmComputeLinkInformation::HandleBadFullItem(std::string const& item,
           << "  " << item << "\n"
           << "which is a full-path but not a valid library file name.";
       /* clang-format on */
-      this->CMakeInstance->IssueMessage(cmake::FATAL_ERROR, e.str(),
+      this->CMakeInstance->IssueMessage(MessageType::FATAL_ERROR, e.str(),
                                         this->Target->GetBacktrace());
     } break;
   }
@@ -1424,7 +1425,7 @@ bool cmComputeLinkInformation::FinishLinkerSearchDirectories()
           "CMP0003-WARNING-GIVEN", "1");
         std::ostringstream w;
         this->PrintLinkPolicyDiagnosis(w);
-        this->CMakeInstance->IssueMessage(cmake::AUTHOR_WARNING, w.str(),
+        this->CMakeInstance->IssueMessage(MessageType::AUTHOR_WARNING, w.str(),
                                           this->Target->GetBacktrace());
       }
     case cmPolicies::OLD:
@@ -1439,7 +1440,7 @@ bool cmComputeLinkInformation::FinishLinkerSearchDirectories()
       std::ostringstream e;
       e << cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0003) << "\n";
       this->PrintLinkPolicyDiagnosis(e);
-      this->CMakeInstance->IssueMessage(cmake::FATAL_ERROR, e.str(),
+      this->CMakeInstance->IssueMessage(MessageType::FATAL_ERROR, e.str(),
                                         this->Target->GetBacktrace());
       return false;
     }

Source/cmComputeTargetDepends.cxx

@@ -9,6 +9,7 @@
 #include "cmListFileCache.h"
 #include "cmLocalGenerator.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmPolicies.h"
 #include "cmSourceFile.h"
 #include "cmState.h"
@@ -217,7 +218,7 @@ void cmComputeTargetDepends::CollectTargetDepends(int depender_index)
                 depender->GetType() != cmStateEnums::MODULE_LIBRARY &&
                 depender->GetType() != cmStateEnums::OBJECT_LIBRARY) {
               this->GlobalGenerator->GetCMakeInstance()->IssueMessage(
-                cmake::FATAL_ERROR,
+                MessageType::FATAL_ERROR,
                 "Only executables and libraries may reference target objects.",
                 depender->GetBacktrace());
               return;
@@ -314,7 +315,7 @@ void cmComputeTargetDepends::AddTargetDepend(int depender_index,
 
   if (!dependee && !linking &&
       (depender->GetType() != cmStateEnums::GLOBAL_TARGET)) {
-    cmake::MessageType messageType = cmake::AUTHOR_WARNING;
+    MessageType messageType = MessageType::AUTHOR_WARNING;
     bool issueMessage = false;
     std::ostringstream e;
     switch (depender->GetPolicyStatusCMP0046()) {
@@ -327,7 +328,7 @@ void cmComputeTargetDepends::AddTargetDepend(int depender_index,
       case cmPolicies::REQUIRED_IF_USED:
       case cmPolicies::REQUIRED_ALWAYS:
         issueMessage = true;
-        messageType = cmake::FATAL_ERROR;
+        messageType = MessageType::FATAL_ERROR;
     }
     if (issueMessage) {
       cmake* cm = this->GlobalGenerator->GetCMakeInstance();

Source/cmConditionEvaluator.cxx

@@ -11,8 +11,10 @@
 
 #include "cmAlgorithms.h"
 #include "cmMakefile.h"
+#include "cmMessageType.h"
 #include "cmState.h"
 #include "cmSystemTools.h"
+#include "cmake.h"
 
 class cmCommand;
 class cmTest;
@@ -81,7 +83,7 @@ cmConditionEvaluator::cmConditionEvaluator(cmMakefile& makefile,
 
 bool cmConditionEvaluator::IsTrue(
   const std::vector<cmExpandedCommandArgument>& args, std::string& errorString,
-  cmake::MessageType& status)
+  MessageType& status)
 {
   errorString.clear();
 
@@ -123,7 +125,7 @@ bool cmConditionEvaluator::IsTrue(
   // now at the end there should only be one argument left
   if (newArgs.size() != 1) {
     errorString = "Unknown arguments specified";
-    status = cmake::FATAL_ERROR;
+    status = MessageType::FATAL_ERROR;
     return false;
   }
 
@@ -155,7 +157,7 @@ const char* cmConditionEvaluator::GetDefinitionIfUnquoted(
            "Since the policy is not set the OLD behavior will be used.";
 
       this->Makefile.GetCMakeInstance()->IssueMessage(
-        cmake::AUTHOR_WARNING, e.str(), this->Backtrace);
+        MessageType::AUTHOR_WARNING, e.str(), this->Backtrace);
     }
   }
 
@@ -199,7 +201,7 @@ bool cmConditionEvaluator::IsKeyword(std::string const& keyword,
            "Since the policy is not set the OLD behavior will be used.";
 
       this->Makefile.GetCMakeInstance()->IssueMessage(
-        cmake::AUTHOR_WARNING, e.str(), this->Backtrace);
+        MessageType::AUTHOR_WARNING, e.str(), this->Backtrace);
     }
   }
 
@@ -269,7 +271,7 @@ bool cmConditionEvaluator::GetBooleanValueOld(
 // returns the resulting boolean value
 bool cmConditionEvaluator::GetBooleanValueWithAutoDereference(
   cmExpandedCommandArgument& newArg, std::string& errorString,
-  cmake::MessageType& status, bool oneArg) const
+  MessageType& status, bool oneArg) const
 {
   // Use the policy if it is set.
   if (this->Policy12Status == cmPolicies::NEW) {
@@ -288,7 +290,7 @@ bool cmConditionEvaluator::GetBooleanValueWithAutoDereference(
         errorString = "An argument named \"" + newArg.GetValue() +
           "\" appears in a conditional statement.  " +
           cmPolicies::GetPolicyWarning(cmPolicies::CMP0012);
-        status = cmake::AUTHOR_WARNING;
+        status = MessageType::AUTHOR_WARNING;
         CM_FALLTHROUGH;
       case cmPolicies::OLD:
         return oldResult;
@@ -297,7 +299,7 @@ bool cmConditionEvaluator::GetBooleanValueWithAutoDereference(
         errorString = "An argument named \"" + newArg.GetValue() +
           "\" appears in a conditional statement.  " +
           cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0012);
-        status = cmake::FATAL_ERROR;
+        status = MessageType::FATAL_ERROR;
       }
       case cmPolicies::NEW:
         break;
@@ -362,7 +364,7 @@ void cmConditionEvaluator::HandleBinaryOp(bool value, int& reducible,
 // level 0 processes parenthetical expressions
 bool cmConditionEvaluator::HandleLevel0(cmArgumentList& newArgs,
                                         std::string& errorString,
-                                        cmake::MessageType& status)
+                                        MessageType& status)
 {
   int reducible;
   do {
@@ -386,7 +388,7 @@ bool cmConditionEvaluator::HandleLevel0(cmArgumentList& newArgs,
         }
         if (depth) {
           errorString = "mismatched parenthesis in condition";
-          status = cmake::FATAL_ERROR;
+          status = MessageType::FATAL_ERROR;
           return false;
         }
         // store the reduced args in this vector
@@ -419,7 +421,7 @@ bool cmConditionEvaluator::HandleLevel0(cmArgumentList& newArgs,
 //=========================================================================
 // level one handles most predicates except for NOT
 bool cmConditionEvaluator::HandleLevel1(cmArgumentList& newArgs, std::string&,
-                                        cmake::MessageType&)
+                                        MessageType&)
 {
   int reducible;
   do {
@@ -485,7 +487,7 @@ bool cmConditionEvaluator::HandleLevel1(cmArgumentList& newArgs, std::string&,
              "when the policy is set to NEW.  "
              "Since the policy is not set the OLD behavior will be used.";
 
-        this->Makefile.IssueMessage(cmake::AUTHOR_WARNING, e.str());
+        this->Makefile.IssueMessage(MessageType::AUTHOR_WARNING, e.str());
       }
       // is a variable defined
       if (this->IsKeyword(keyDEFINED, *arg) && argP1 != newArgs.end()) {
@@ -516,7 +518,7 @@ bool cmConditionEvaluator::HandleLevel1(cmArgumentList& newArgs, std::string&,
 // level two handles most binary operations except for AND  OR
 bool cmConditionEvaluator::HandleLevel2(cmArgumentList& newArgs,
                                         std::string& errorString,
-                                        cmake::MessageType& status)
+                                        MessageType& status)
 {
   int reducible;
   std::string def_buf;
@@ -547,7 +549,7 @@ bool cmConditionEvaluator::HandleLevel2(cmArgumentList& newArgs,
           std::ostringstream error;
           error << "Regular expression \"" << rex << "\" cannot compile";
           errorString = error.str();
-          status = cmake::FATAL_ERROR;