cmMakefile: Constify policies accessors.

Source/cmMakefile.cxx

@@ -4287,7 +4287,7 @@ std::vector<cmSourceFile*> cmMakefile::GetQtUiFilesWithOptions() const
 
 //----------------------------------------------------------------------------
 cmPolicies::PolicyStatus
-cmMakefile::GetPolicyStatus(cmPolicies::PolicyID id)
+cmMakefile::GetPolicyStatus(cmPolicies::PolicyID id) const
 {
   // Get the current setting of the policy.
   cmPolicies::PolicyStatus cur = this->GetPolicyStatusInternal(id);
@@ -4315,10 +4315,10 @@ cmMakefile::GetPolicyStatus(cmPolicies::PolicyID id)
 
 //----------------------------------------------------------------------------
 cmPolicies::PolicyStatus
-cmMakefile::GetPolicyStatusInternal(cmPolicies::PolicyID id)
+cmMakefile::GetPolicyStatusInternal(cmPolicies::PolicyID id) const
 {
   // Is the policy set in our stack?
-  for(PolicyStackType::reverse_iterator psi = this->PolicyStack.rbegin();
+  for(PolicyStackType::const_reverse_iterator psi = this->PolicyStack.rbegin();
       psi != this->PolicyStack.rend(); ++psi)
     {
     PolicyStackEntry::const_iterator pse = psi->find(id);
@@ -4468,7 +4468,7 @@ bool cmMakefile::SetPolicyVersion(const char *version)
     ApplyPolicyVersion(this,version);
 }
 
-cmPolicies *cmMakefile::GetPolicies()
+cmPolicies *cmMakefile::GetPolicies() const
 {
   if (!this->GetCMakeInstance())
   {

Source/cmMakefile.h

@@ -356,7 +356,7 @@ public:
      */
   bool SetPolicy(cmPolicies::PolicyID id, cmPolicies::PolicyStatus status);
   bool SetPolicy(const char *id, cmPolicies::PolicyStatus status);
-  cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id);
+  cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id) const;
   bool SetPolicyVersion(const char *version);
   void RecordPolicies(cmPolicies::PolicyMap& pm);
   //@}
@@ -379,7 +379,7 @@ public:
   /**
     * Get the Policies Instance
     */
- cmPolicies *GetPolicies();
+ cmPolicies *GetPolicies() const;
 
   /**
    * Add an auxiliary directory to the build.
@@ -1031,7 +1031,8 @@ private:
   typedef std::vector<PolicyStackEntry> PolicyStackType;
   PolicyStackType PolicyStack;
   std::vector<PolicyStackType::size_type> PolicyBarriers;
-  cmPolicies::PolicyStatus GetPolicyStatusInternal(cmPolicies::PolicyID id);
+  cmPolicies::PolicyStatus
+  GetPolicyStatusInternal(cmPolicies::PolicyID id) const;
 
   bool CheckCMP0000;