--- a/gcc/testsuite/g++.dg/concepts/fn-concept2.C	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/testsuite/g++.dg/concepts/fn-concept2.C	Thu Oct 25 07:37:49 2018 +0900
@@ -1,7 +1,11 @@
-// { dg-options "-std=c++17 -fconcepts" }
+// { dg-do compile { target c++17 } }
+// { dg-options "-fconcepts" }
 
 template<typename T>
-  concept auto C1() { return 0; } // { dg-error "deduced return type" }
+  concept auto C1() { return 0; } // { dg-error "16:concept .concept auto C1\\(\\). declared with a deduced return type" }
 
 template<typename T>
-  concept int C2() { return 0; } // { dg-error "return type" }
+  concept int C2() { return 0; } // { dg-error "15:concept .concept int C2\\(\\). with non-.bool. return type .int." }
+
+template<typename T>
+  concept bool C3(int) { return 0; } // { dg-error "16:concept .concept bool C3\\(int\\). declared with function parameters" }