>From f6b7c8766bee0d297235771cbc91fe2e8353db34 Mon Sep 17 00:00:00 2001
From: Bruno Haible <address@hidden>
Date: Fri, 5 Oct 2018 21:54:14 +0200
Subject: [PATCH 4/5] strcspn: Make it possible to namespace the defined
 symbol.

* lib/strcspn.c (strcspn): Don't undefine outside of glibc.
---
 ChangeLog     | 5 +++++
 lib/strcspn.c | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 8d4d249..10c3cd8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2018-10-05  Bruno Haible  <address@hidden>
 
+	strcspn: Make it possible to namespace the defined symbol.
+	* lib/strcspn.c (strcspn): Don't undefine outside of glibc.
+
+2018-10-05  Bruno Haible  <address@hidden>
+
 	raise: Make it possible to namespace the defined symbol.
 	* lib/raise.c (raise): Undefine only after the replacement function has
 	been defined.
diff --git a/lib/strcspn.c b/lib/strcspn.c
index 0e98603..735b91b 100644
--- a/lib/strcspn.c
+++ b/lib/strcspn.c
@@ -22,7 +22,9 @@
 #include <stddef.h>
 #include <string.h>
 
-#undef strcspn
+#if _LIBC
+# undef strcspn
+#endif
 
 /* Return the length of the maximum initial segment of S
    which contains no characters from REJECT.  */
-- 
2.7.4