diff --git a/Source/cmFindCommon.cxx b/Source/cmFindCommon.cxx
index 70c0f73f1..f4c00645e 100644
--- a/Source/cmFindCommon.cxx
+++ b/Source/cmFindCommon.cxx
@@ -324,14 +324,10 @@ void cmFindCommon::AddUserPath(std::string const& p,
   // it.
   cmSystemTools::KeyWOW64 view = cmSystemTools::KeyWOW64_32;
   cmSystemTools::KeyWOW64 other_view = cmSystemTools::KeyWOW64_64;
-  if(const char* psize =
-     this->Makefile->GetDefinition("CMAKE_SIZEOF_VOID_P"))
+  if(this->Makefile->PlatformIs64Bit())
     {
-    if(atoi(psize) == 8)
-      {
-      view = cmSystemTools::KeyWOW64_64;
-      other_view = cmSystemTools::KeyWOW64_32;
-      }
+    view = cmSystemTools::KeyWOW64_64;
+    other_view = cmSystemTools::KeyWOW64_32;
     }
 
   // Expand using the view of the target application.
diff --git a/Source/cmFindPackageCommand.cxx b/Source/cmFindPackageCommand.cxx
index e7beb84de..165dbc2cc 100644
--- a/Source/cmFindPackageCommand.cxx
+++ b/Source/cmFindPackageCommand.cxx
@@ -329,15 +329,11 @@ bool cmFindPackageCommand
   this->DebugMode = this->Makefile->IsOn("CMAKE_FIND_DEBUG_MODE");
 
   // Lookup whether lib64 paths should be used.
-  if(const char* sizeof_dptr =
-     this->Makefile->GetDefinition("CMAKE_SIZEOF_VOID_P"))
+  if(this->Makefile->PlatformIs64Bit() &&
+     this->Makefile->GetCMakeInstance()
+     ->GetPropertyAsBool("FIND_LIBRARY_USE_LIB64_PATHS"))
     {
-    if(atoi(sizeof_dptr) == 8 &&
-       this->Makefile->GetCMakeInstance()
-       ->GetPropertyAsBool("FIND_LIBRARY_USE_LIB64_PATHS"))
-      {
-      this->UseLib64Paths = true;
-      }
+    this->UseLib64Paths = true;
     }
 
   // Find the current root path mode.
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index e49ec3d98..7aa1202bc 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -2050,6 +2050,15 @@ bool cmMakefile::IsSet(const char* name) const
   return true;
 }
 
+bool cmMakefile::PlatformIs64Bit() const
+{
+  if(const char* sizeof_dptr = this->GetDefinition("CMAKE_SIZEOF_VOID_P"))
+    {
+    return atoi(sizeof_dptr) == 8;
+    }
+  return false;
+}
+
 bool cmMakefile::CanIWriteThisFile(const char* fileName)
 {
   if ( !this->IsOn("CMAKE_DISABLE_SOURCE_CHANGES") )
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index ea9eb17c0..485d9e24d 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -588,6 +588,9 @@ public:
   bool IsOn(const char* name) const;
   bool IsSet(const char* name) const;
 
+  /** Return whether the target platform is 64-bit.  */
+  bool PlatformIs64Bit() const;
+
   /**
    * Get a list of preprocessor define flags.
    */