--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/gcc.dg/pr15347.c Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,11 @@ +/* { dg-do link } */ +/* { dg-options "-O" } */ + +extern void link_error (void); +int +main () +{ + if ("<12ers" + 1 == 0) + link_error (); + return 0; +}