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-rw-r--r--resolv/netdb.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/resolv/netdb.h b/resolv/netdb.h
index 09ca37bbbf..e54c974f2f 100644
--- a/resolv/netdb.h
+++ b/resolv/netdb.h
@@ -482,7 +482,7 @@ extern int getaddrinfo (__const char *__restrict __name,
 extern void freeaddrinfo (struct addrinfo *__ai) __THROW;
 
 /* Convert error return from getaddrinfo() to a string.  */
-extern char *gai_strerror (int __ecode) __THROW;
+extern __const char *gai_strerror (int __ecode) __THROW;
 
 /* Translate a socket address to a location and service name.  */
 extern int getnameinfo (__const struct sockaddr *__restrict __sa,