cmTarget: Deprecate the LOCATION target property with a policy.

The final location and name of a build-target is not determined
until generate-time. However, reading the LOCATION property from
a target is currently allowed at configure time. Apart from creating
possibly-erroneous results, this has an impact on the implementation
of cmake itself, and prevents some major cleanups from being made.

Disallow reading LOCATION from build-targets with a policy. Port some
existing uses of it in CMake itself to use the TARGET_FILE generator
expression.

1 files changed, 2 insertions, 0 deletions

diff --git a/Source/cmTarget.h b/Source/cmTarget.h
index a88c5ec..3c36da7 100644
--- a/Source/cmTarget.h
+++ b/Source/cmTarget.h
@@ -554,6 +554,8 @@ public:
   { return this->TargetTypeValue == STATIC_LIBRARY; }
 
 private:
+  bool HandleLocationPropertyPolicy();
+
   // The set of include directories that are marked as system include
   // directories.
   std::set<cmStdString> SystemIncludeDirectories;