cmState: Compute and store directory components.

There is no need to duplicate these in all cmLocalGenerators.

Rename the symbols according to current conventions.

Add explicit calls to Set{Source,Binary}Directory with empty strings
in order to trigger the population of the components containers with
the current working directory in cmLocalGenerator.  Having
directories set to empty is a special case in CMake, which is relied
on for the `if(CMAKE_BINARY_DIR)` condition at the end of
CMakeDetermineSystem.cmake.

1 files changed, 5 insertions, 0 deletions

diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 5c5c428..706f50f 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -1925,6 +1925,8 @@ int cmake::CheckBuildSystem()
   // Read the rerun check file and use it to decide whether to do the
   // global generate.
   cmake cm;
+  cm.SetHomeDirectory("");
+  cm.SetHomeOutputDirectory("");
   cmGlobalGenerator gg;
   gg.SetCMakeInstance(&cm);
   cmsys::auto_ptr<cmLocalGenerator> lg(gg.CreateLocalGenerator());
@@ -2580,6 +2582,9 @@ int cmake::Build(const std::string& dir,
                  const std::vector<std::string>& nativeOptions,
                  bool clean)
 {
+
+  this->SetHomeDirectory("");
+  this->SetHomeOutputDirectory("");
   if(!cmSystemTools::FileIsDirectory(dir))
     {
     std::cerr << "Error: " << dir << " is not a directory\n";