diff --git a/sysdeps/ia64/math-use-builtins-ffs.h b/sysdeps/ia64/math-use-builtins-ffs.h
deleted file mode 100644
index a83bb15414..0000000000
--- a/sysdeps/ia64/math-use-builtins-ffs.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#define USE_FFS_BUILTIN   1
-#define USE_FFSLL_BUILTIN 1