netdb: require glibc 2.9 for getaddrinfo_a()

diff --git a/usual/netdb.h b/usual/netdb.h
index 79f22288a3e459930370cb85ab11bf498154e254..59b55b4e226cbe80b64ea88e903173de4767cea8 100644 (file)
--- a/usual/netdb.h
+++ b/usual/netdb.h
@@ -31,9 +31,11 @@
 #endif
 
 /* older glibcs have broken getaddrinfo_a() */
-#if defined(__GLIBC_PREREQ) && !__GLIBC_PREREQ(2,7)
+#ifdef __GLIBC_PREREQ
+#if !__GLIBC_PREREQ(2,9)
 #undef HAVE_GETADDRINFO_A
 #endif
+#endif
 
 #ifndef HAVE_GETADDRINFO_A