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-rw-r--r--sysdeps/m68k/bits/endian.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/m68k/bits/endian.h b/sysdeps/m68k/bits/endian.h
index 6f985293f2..bf4ecb60a4 100644
--- a/sysdeps/m68k/bits/endian.h
+++ b/sysdeps/m68k/bits/endian.h
@@ -1,3 +1,7 @@
 /* m68k is big-endian.  */
 
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
 #define __BYTE_ORDER __BIG_ENDIAN