netdb: disable getaddrinfo_a() on older glibc

RHEL/CentOS glibc 2.5 is broken

Debian's glibc 2.3 (etch) and 2.7 (lenny) work

diff --git a/usual/netdb.h b/usual/netdb.h
index 8dac6e83cb0503bf5666210519a6deb12749ea88..79f22288a3e459930370cb85ab11bf498154e254 100644 (file)
--- a/usual/netdb.h
+++ b/usual/netdb.h
@@ -30,6 +30,11 @@
 #include <netdb.h>
 #endif
 
+/* older glibcs have broken getaddrinfo_a() */
+#if defined(__GLIBC_PREREQ) && !__GLIBC_PREREQ(2,7)
+#undef HAVE_GETADDRINFO_A
+#endif
+
 #ifndef HAVE_GETADDRINFO_A
 
 /** Async execution */