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-rw-r--r--include/netdb.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/netdb.h b/include/netdb.h
index adde2c5e..d096c781 100644
--- a/include/netdb.h
+++ b/include/netdb.h
@@ -115,6 +115,9 @@ struct protoent *getprotobynumber (int);
|| (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
struct hostent *gethostbyname (const char *);
struct hostent *gethostbyaddr (const void *, socklen_t, int);
+#ifdef __GNUC__
+__attribute__((const))
+#endif
int *__h_errno_location(void);
#define h_errno (*__h_errno_location())
#define HOST_NOT_FOUND 1