From 2407381c3d3ebbf56b093701a9d9cb066216ebf8 Mon Sep 17 00:00:00 2001
From: kiwiwarmnfuzzy <108398132+kiwiwarmnfuzzy@users.noreply.github.com>
Date: Thu, 30 Jun 2022 13:24:22 +0200
Subject: [PATCH] Force auc.cc to be statically linked (#8039)

---
 src/metric/auc.cc    | 2 ++
 src/metric/metric.cc | 1 +
 2 files changed, 3 insertions(+)

diff --git a/src/metric/auc.cc b/src/metric/auc.cc
index 0750e9936..d7a7fff4a 100644
--- a/src/metric/auc.cc
+++ b/src/metric/auc.cc
@@ -25,6 +25,8 @@
 
 namespace xgboost {
 namespace metric {
+// tag the this file, used by force static link later.
+DMLC_REGISTRY_FILE_TAG(auc);
 /**
  * Calculate AUC for binary classification problem.  This function does not normalize the
  * AUC by 1 / (num_positive * num_negative), instead it returns a tuple for caller to
diff --git a/src/metric/metric.cc b/src/metric/metric.cc
index e2ee04cf4..f6c1d53bb 100644
--- a/src/metric/metric.cc
+++ b/src/metric/metric.cc
@@ -78,6 +78,7 @@ DMLC_REGISTRY_ENABLE(::xgboost::MetricGPUReg);
 namespace xgboost {
 namespace metric {
 // List of files that will be force linked in static links.
+DMLC_REGISTRY_LINK_TAG(auc);
 DMLC_REGISTRY_LINK_TAG(elementwise_metric);
 DMLC_REGISTRY_LINK_TAG(multiclass_metric);
 DMLC_REGISTRY_LINK_TAG(survival_metric);