diff --git a/thpp/ThppDuplicateMarker.cpp b/thpp/ThppDuplicateMarker.cpp
deleted file mode 100644
index 60da550..0000000
--- a/thpp/ThppDuplicateMarker.cpp
+++ /dev/null
@@ -1,20 +0,0 @@
-#include <cstdlib>
-#include <iostream>
-
-int g_you_cannot_have_one_binary_with_two_versions_of_th_or_thpp_linked = 0;
-
-namespace {
-struct Trigger {
-  Trigger() {
-    if (g_you_cannot_have_one_binary_with_two_versions_of_th_or_thpp_linked) {
-      std::cerr
-          << "you can't have one binary with two versions of th or thpp linked"
-          << std::endl;
-      exit(1);
-    }
-    ++g_you_cannot_have_one_binary_with_two_versions_of_th_or_thpp_linked;
-  }
-};
-
-Trigger g_trigger;
-} // namespace