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-rw-r--r--string/strchrnul.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/string/strchrnul.c b/string/strchrnul.c
index 1f63572d6c..bf39636872 100644
--- a/string/strchrnul.c
+++ b/string/strchrnul.c
@@ -27,9 +27,13 @@
#undef __strchrnul
#undef strchrnul
+#ifndef STRCHRNUL
+# define STRCHRNUL __strchrnul
+#endif
+
/* Find the first occurrence of C in S or the final NUL byte. */
char *
-__strchrnul (s, c_in)
+STRCHRNUL (s, c_in)
const char *s;
int c_in;
{