1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/vax/bits/setjmp.h b/sysdeps/vax/bits/setjmp.h
index 7adecd9a17..10ca170a2a 100644
--- a/sysdeps/vax/bits/setjmp.h
+++ b/sysdeps/vax/bits/setjmp.h
@@ -1,5 +1,9 @@
 /* Define the machine-dependent type `jmp_buf'.  Vax version.  */
 
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
 typedef struct
   {
     PTR __fp;