cmState: Add API for cache version.

Source/cmCPluginAPI.cxx

@@ -51,14 +51,14 @@ void CCONV cmSetError(void *info, const char *err)
 unsigned int CCONV  cmGetCacheMajorVersion(void *arg)
 {
   cmMakefile *mf = static_cast<cmMakefile *>(arg);
-  cmCacheManager *manager = mf->GetCMakeInstance()->GetCacheManager();
-  return manager->GetCacheMajorVersion();
+  cmState *state = mf->GetState();
+  return state->GetCacheMajorVersion();
 }
 unsigned int CCONV cmGetCacheMinorVersion(void *arg)
 {
   cmMakefile *mf = static_cast<cmMakefile *>(arg);
-  cmCacheManager *manager = mf->GetCMakeInstance()->GetCacheManager();
-  return manager->GetCacheMinorVersion();
+  cmState *state = mf->GetState();
+  return state->GetCacheMinorVersion();
 }
 
 unsigned int CCONV cmGetMajorVersion(void *)

Source/cmState.cxx

@@ -677,6 +677,16 @@ bool cmState::UseMSYSShell() const
   return this->MSYSShell;
 }
 
+unsigned int cmState::GetCacheMajorVersion() const
+{
+  return this->CMakeInstance->GetCacheManager()->GetCacheMajorVersion();
+}
+
+unsigned int cmState::GetCacheMinorVersion() const
+{
+  return this->CMakeInstance->GetCacheManager()->GetCacheMinorVersion();
+}
+
 const char* cmState::GetBinaryDirectory() const
 {
   return this->BinaryDirectory.c_str();

Source/cmState.h

@@ -302,6 +302,9 @@ public:
   void SetMSYSShell(bool mSYSShell);
   bool UseMSYSShell() const;
 
+  unsigned int GetCacheMajorVersion() const;
+  unsigned int GetCacheMinorVersion() const;
+
 private:
   friend class cmake;
   void AddCacheEntry(const std::string& key, const char* value,

Source/cmUtilitySourceCommand.cxx

@@ -11,8 +11,6 @@
 ============================================================================*/
 #include "cmUtilitySourceCommand.h"
 
-#include "cmCacheManager.h"
-
 // cmUtilitySourceCommand
 bool cmUtilitySourceCommand
 ::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
@@ -54,13 +52,13 @@ bool cmUtilitySourceCommand
     }
   else
     {
-    cmCacheManager *manager =
-        this->Makefile->GetCMakeInstance()->GetCacheManager();
+    cmState *state =
+        this->Makefile->GetState();
     haveCacheValue = (cacheValue &&
      (strstr(cacheValue, "(IntDir)") == 0 ||
       (intDir && strcmp(intDir, "$(IntDir)") == 0)) &&
-     (manager->GetCacheMajorVersion() != 0 &&
-      manager->GetCacheMinorVersion() != 0 ));
+     (state->GetCacheMajorVersion() != 0 &&
+      state->GetCacheMinorVersion() != 0 ));
     }
 
   if(haveCacheValue)