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-rw-r--r--include/string.h27
1 files changed, 23 insertions, 4 deletions
diff --git a/include/string.h b/include/string.h
index d7501eb83..edcdf19fe 100644
--- a/include/string.h
+++ b/include/string.h
@@ -232,10 +232,29 @@ extern size_t strnlen (__const char *__string, size_t __maxlen)
/* Return a string describing the meaning of the `errno' code in ERRNUM. */
extern char *strerror (int __errnum) __THROW;
-#ifdef __USE_MISC
-/* Reentrant version of `strerror'. If a temporary buffer is required, at
- most BUFLEN bytes of BUF will be used. */
-extern int strerror_r (int __errnum, char *__buf, size_t buflen) __THROW;
+
+/* Reentrant versions of `strerror'. If a temporary buffer is required,
+ at most BUFLEN bytes of BUF will be used. These symbols are _NOT_ intended
+ to be applications, and can change at any time. */
+extern char *_glibc_strerror_r (int __errnum, char *__buf, size_t __buflen) __THROW;
+extern int _susv3_strerror_r (int __errnum, char *__buf, size_t buflen) __THROW;
+
+#if defined(__USE_XOPEN2K) && !defined(__USE_GNU)
+# ifdef __REDIRECT
+extern int __REDIRECT (strerror_r,
+ (int __errnum, char *__buf, size_t buflen) __THROW,
+ _susv3_strerror_r);
+# else
+# define strerror_r _susv3_strerror_r
+# endif
+#elif defined(__USE_MISC)
+# ifdef __REDIRECT
+extern char *__REDIRECT (strerror_r,
+ (int __errnum, char *__buf, size_t buflen) __THROW,
+ _glibc_strerror_r);
+# else
+# define strerror_r _glibc_strerror_r
+# endif
#endif
/* We define this function always since `bzero' is sometimes needed when