whitepaper: 352/169 — wave4 MEDIUM (hadoop/hbase/nova/neutron/openstack) + fix odl-0002 dup

defects/cmake/patch/cmake-0002-getdirectories-unordered-map.patch

@@ -0,0 +1,30 @@
+diff --git a/Source/cmComputeLinkInformation.cxx b/Source/cmComputeLinkInformation.cxx
+index abc1234..def5678 100644
+--- a/Source/cmComputeLinkInformation.cxx
++++ b/Source/cmComputeLinkInformation.cxx
+@@ -456,14 +456,19 @@ std::vector<BT<std::string>>
+ cmComputeLinkInformation::GetDirectoriesWithBacktraces()
+ {
+   std::vector<BT<std::string>> directoriesWithBacktraces;
+
+   std::vector<BT<std::string>> targetLinkDirectories =
+     this->Target->GetLinkDirectories(this->Config, this->LinkLanguage);
+
++  // Build an index from directory string → BT entry for O(1) lookup.
++  std::unordered_map<std::string, BT<std::string>> dirIndex;
++  dirIndex.reserve(targetLinkDirectories.size());
++  for (auto& bt : targetLinkDirectories)
++    dirIndex.emplace(bt.Value, std::move(bt));
++
+   std::vector<std::string> const& orderedDirectories = this->GetDirectories();
+   for (std::string const& dir : orderedDirectories) {
+-    auto result = std::find(targetLinkDirectories.begin(),
+-                            targetLinkDirectories.end(), dir);
+-    if (result != targetLinkDirectories.end()) {
+-      directoriesWithBacktraces.emplace_back(std::move(*result));
++    auto result = dirIndex.find(dir);
++    if (result != dirIndex.end()) {
++      directoriesWithBacktraces.emplace_back(std::move(result->second));
+     } else {
+       directoriesWithBacktraces.emplace_back(dir);
+     }