Merge topic 'clean-up-cmMakefile-IssueMessage'

5bbcf758 cmIfCommand: Don't rely on NestedError logic to issue messages
262ce91e cmMakefile: Extract invoke result variables

Source/cmIfCommand.cxx

@@ -185,12 +185,12 @@ bool cmIfCommand::InvokeInitialPass(
     conditionEvaluator.IsTrue(expandedArguments, errorString, status);
 
   if (!errorString.empty()) {
-    std::string err = cmIfCommandError(expandedArguments);
+    std::string err = "if " + cmIfCommandError(expandedArguments);
     err += errorString;
     if (status == cmake::FATAL_ERROR) {
-      this->SetError(err);
+      this->Makefile->IssueMessage(cmake::FATAL_ERROR, err);
       cmSystemTools::SetFatalErrorOccured();
-      return false;
+      return true;
     } else {
       this->Makefile->IssueMessage(status, err);
     }

Source/cmMakefile.cxx

@@ -254,9 +254,10 @@ bool cmMakefile::ExecuteCommand(const cmListFileFunction& lff,
         this->PrintCommandTrace(lff);
       }
       // Try invoking the command.
-      if (!pcmd->InvokeInitialPass(lff.Arguments, status) ||
-          status.GetNestedError()) {
-        if (!status.GetNestedError()) {
+      bool invokeSucceeded = pcmd->InvokeInitialPass(lff.Arguments, status);
+      bool hadNestedError = status.GetNestedError();
+      if (!invokeSucceeded || hadNestedError) {
+        if (!hadNestedError) {
           // The command invocation requested that we report an error.
           this->IssueMessage(cmake::FATAL_ERROR, pcmd->GetError());
         }