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-rw-r--r--string/memchr.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/string/memchr.c b/string/memchr.c
index 2427c4b4b6..7a09de8932 100644
--- a/string/memchr.c
+++ b/string/memchr.c
@@ -51,9 +51,13 @@
 #undef memchr
 #undef __memchr
 
+#ifndef MEMCHR
+# define MEMCHR __memchr
+#endif
+
 /* Search no more than N bytes of S for C.  */
 __ptr_t
-__memchr (s, c_in, n)
+MEMCHR (s, c_in, n)
      const __ptr_t s;
      int c_in;
      size_t n;