FeatureSummary: Don't list transitive package dependencies

Set a global property in the find_package implementation.  Track and
reset that property in the find_dependency macro.  Read the property
in FeatureSummary when determining whether to print output.

This means that packages which are found only as dependencies are not
listed by FeatureSummary, but if a project uses find_package elsewhere
directly, then it will be listed by FeatureSummary.

Suggested-by: Alex Merry

 http://thread.gmane.org/gmane.comp.kde.devel.frameworks/10640

1 files changed, 6 insertions, 0 deletions

diff --git a/Source/cmFindPackageCommand.cxx b/Source/cmFindPackageCommand.cxx
index c59aafd6a6..73eba517e0 100644
--- a/Source/cmFindPackageCommand.cxx
+++ b/Source/cmFindPackageCommand.cxx
@@ -1043,6 +1043,12 @@ void cmFindPackageCommand::AppendToFoundProperty(bool found)
 //----------------------------------------------------------------------------
 void cmFindPackageCommand::AppendSuccessInformation()
 {
+  {
+  std::string transitivePropName = "_CMAKE_";
+  transitivePropName += this->Name + "_TRANSITIVE_DEPENDENCY";
+  this->Makefile->GetCMakeInstance()
+                ->SetProperty(transitivePropName.c_str(), "False");
+  }
   std::string found = this->Name;
   found += "_FOUND";
   std::string upperFound = cmSystemTools::UpperCase(found);