cmTarget: Make GetProperty() const.

This has follow-on effects for other methods and classes. Further
work on making the use of const cmTarget pointers common can be
done, particularly with a view to generate-time methods.

1 files changed, 13 insertions, 2 deletions

diff --git a/Source/cmFindCommon.cxx b/Source/cmFindCommon.cxx
index 7beeda0..97a20ce 100644
--- a/Source/cmFindCommon.cxx
+++ b/Source/cmFindCommon.cxx
@@ -140,14 +140,25 @@ void cmFindCommon::RerootPaths(std::vector<std::string>& paths)
     }
   const char* rootPath =
     this->Makefile->GetDefinition("CMAKE_FIND_ROOT_PATH");
-  if((rootPath == 0) || (strlen(rootPath) == 0))
+  const char* osxRootPath =
+    this->Makefile->GetDefinition("_CMAKE_OSX_SYSROOT_PATH");
+  const bool noRootPath = !rootPath || !*rootPath;
+  const bool noOSXRootPath = !osxRootPath || !*osxRootPath;
+  if(noRootPath && noOSXRootPath)
     {
     return;
     }
 
   // Construct the list of path roots with no trailing slashes.
   std::vector<std::string> roots;
-  cmSystemTools::ExpandListArgument(rootPath, roots);
+  if(rootPath)
+    {
+    cmSystemTools::ExpandListArgument(rootPath, roots);
+    }
+  if(osxRootPath)
+    {
+    roots.push_back(osxRootPath);
+    }
   for(std::vector<std::string>::iterator ri = roots.begin();
       ri != roots.end(); ++ri)
     {