diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc
index 475f2181cc4909efcc107f4e14c55eaa445d8885..2803824d11e15fb7dc17ef6ede98b1ba62ea26f9 100644
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -5417,9 +5417,14 @@ process_partial_specialization (tree decl)
     }
 
   if (VAR_P (decl))
-    /* We didn't register this in check_explicit_specialization so we could
-       wait until the constraints were set.  */
-    decl = register_specialization (decl, maintmpl, specargs, false, 0);
+    {
+      /* We didn't register this in check_explicit_specialization so we could
+	 wait until the constraints were set.  */
+      tree reg = register_specialization (decl, maintmpl, specargs, false, 0);
+      if (reg != decl)
+	/* Redeclaration.  */
+	return reg;
+    }
   else
     associate_classtype_constraints (type);
 
diff --git a/gcc/testsuite/g++.dg/cpp1y/var-templ85.C b/gcc/testsuite/g++.dg/cpp1y/var-templ85.C
new file mode 100644
index 0000000000000000000000000000000000000000..33c24e0c2844ca5354795d1fb9191ef10a003c93
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/var-templ85.C
@@ -0,0 +1,6 @@
+// PR c++/113612
+// { dg-do compile { target c++14 } }
+
+template <typename T> T t;
+template <typename T> extern T *t<T *>;
+template <typename T> T *t<T *> = t<int>;