diff --git a/ChangeLog b/ChangeLog
index 893c07cd81..c0d97f5b4e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2019-10-02  Alistair Francis  <alistair.francis@wdc.com>
+
+	* string/endian.h: Restore the __USE_MISC conditionals.
+
 2019-10-02  Joseph Myers  <joseph@codesourcery.com>
 
 	* string/tester.c: Ignore -Warray-bounds and
diff --git a/string/endian.h b/string/endian.h
index 0eb534e434..1a9fe3c97e 100644
--- a/string/endian.h
+++ b/string/endian.h
@@ -23,12 +23,14 @@
 /* Get the definitions of __*_ENDIAN, __BYTE_ORDER, and __FLOAT_WORD_ORDER.  */
 #include <bits/endian.h>
 
-#define LITTLE_ENDIAN	__LITTLE_ENDIAN
-#define BIG_ENDIAN	__BIG_ENDIAN
-#define PDP_ENDIAN	__PDP_ENDIAN
-#define BYTE_ORDER	__BYTE_ORDER
+#ifdef __USE_MISC
+# define LITTLE_ENDIAN	__LITTLE_ENDIAN
+# define BIG_ENDIAN	__BIG_ENDIAN
+# define PDP_ENDIAN	__PDP_ENDIAN
+# define BYTE_ORDER	__BYTE_ORDER
+#endif
 
-#ifndef __ASSEMBLER__
+#if defined __USE_MISC && !defined __ASSEMBLER__
 /* Conversion interfaces.  */
 # include <bits/byteswap.h>
 # include <bits/uintn-identity.h>