cmMakefile: Move CMP0059 handling to command code.

Don't pay a penalty for it in all GetProperty calls.

Additionally, the storage of properties will eventually move to
cmState, which should only contain state and not logic for policies
like this.

Source/cmGetDirectoryPropertyCommand.cxx

@@ -86,6 +86,23 @@ bool cmGetDirectoryPropertyCommand
   const char *prop = 0;
   if (!i->empty())
     {
+    if (*i == "DEFINITIONS")
+      {
+      switch(this->Makefile->GetPolicyStatus(cmPolicies::CMP0059))
+        {
+        case cmPolicies::WARN:
+          this->Makefile->IssueMessage(cmake::AUTHOR_WARNING,
+                           cmPolicies::GetPolicyWarning(cmPolicies::CMP0059));
+        case cmPolicies::OLD:
+          this->StoreResult(variable,
+                                   this->Makefile->GetDefineFlagsCMP0059());
+        return true;
+        case cmPolicies::NEW:
+        case cmPolicies::REQUIRED_ALWAYS:
+        case cmPolicies::REQUIRED_IF_USED:
+          break;
+        }
+      }
     prop = dir->GetProperty(*i);
     }
   this->StoreResult(variable, prop);

Source/cmGetPropertyCommand.cxx

@@ -279,6 +279,22 @@ bool cmGetPropertyCommand::HandleDirectoryMode()
       }
     }
 
+  if (this->PropertyName == "DEFINITIONS")
+    {
+    switch(mf->GetPolicyStatus(cmPolicies::CMP0059))
+      {
+      case cmPolicies::WARN:
+        mf->IssueMessage(cmake::AUTHOR_WARNING,
+                         cmPolicies::GetPolicyWarning(cmPolicies::CMP0059));
+      case cmPolicies::OLD:
+        return this->StoreResult(mf->GetDefineFlagsCMP0059());
+      case cmPolicies::NEW:
+      case cmPolicies::REQUIRED_ALWAYS:
+      case cmPolicies::REQUIRED_IF_USED:
+        break;
+      }
+    }
+
   // Get the property.
   return this->StoreResult(mf->GetProperty(this->PropertyName));
 }

Source/cmMakefile.cxx

@@ -4171,22 +4171,6 @@ const char *cmMakefile::GetProperty(const std::string& prop,
     this->GetListOfMacros(output);
     return output.c_str();
     }
-  else if (prop == "DEFINITIONS")
-    {
-    switch(this->GetPolicyStatus(cmPolicies::CMP0059))
-      {
-      case cmPolicies::WARN:
-          this->IssueMessage(cmake::AUTHOR_WARNING, cmPolicies::
-                             GetPolicyWarning(cmPolicies::CMP0059));
-      case cmPolicies::OLD:
-        output += this->DefineFlagsOrig;
-        return output.c_str();
-      case cmPolicies::NEW:
-      case cmPolicies::REQUIRED_ALWAYS:
-      case cmPolicies::REQUIRED_IF_USED:
-        break;
-      }
-    }
   else if (prop == "LINK_DIRECTORIES")
     {
     output = cmJoin(this->GetLinkDirectories(), ";");
@@ -4674,6 +4658,11 @@ cmState::Snapshot cmMakefile::GetStateSnapshot() const
   return this->StateSnapshot;
 }
 
+const char* cmMakefile::GetDefineFlagsCMP0059() const
+{
+  return this->DefineFlagsOrig.c_str();
+}
+
 //----------------------------------------------------------------------------
 cmPolicies::PolicyStatus
 cmMakefile::GetPolicyStatus(cmPolicies::PolicyID id) const

Source/cmMakefile.h

@@ -838,6 +838,8 @@ public:
 
   cmState::Snapshot GetStateSnapshot() const;
 
+  const char* GetDefineFlagsCMP0059() const;
+
 protected:
   // add link libraries and directories to the target
   void AddGlobalLinkInformation(const std::string& name, cmTarget& target);