1 files changed, 6 insertions, 0 deletions
diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 93ca9e3..27bfbee 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -150,6 +150,7 @@ cmake::cmake()
   this->WarnUninitialized = false;
   this->WarnUnused = false;
   this->WarnUnusedCli = true;
+  this->CheckSystemVars = false;
   this->SuppressDevWarnings = false;
   this->DoSuppressDevWarnings = false;
   this->DebugOutput = false;
@@ -656,6 +657,11 @@ void cmake::SetArgs(const std::vector<std::string>& args)
       std::cout << "Finding unused variables given on the command line.\n";
       this->SetWarnUnusedCli(true);
       }
+    else if(arg.find("--check-system-vars",0) == 0)
+      {
+      std::cout << "Also check system files when warning about unused and uninitialized variables.\n";
+      this->SetCheckSystemVars(true);
+      }
     else if(arg.find("-G",0) == 0)
       {
       std::string value = arg.substr(2);