[Gauche-devel] [patch] fix warnings on OpenBSD

[<tim...@wi...>]

Hi,

Gauche seems to incorrectly define NI_MAXHOST and NI_MAXSERV defines when IPv6
is enabled. It causes following warning on OpenBSD and probably other BSD's:

In file included from net.c:34:
gauche-net.h:365:1: warning: "NI_MAXHOST" redefined
In file included from gauche-net.h:43,
                 from net.c:34:
/usr/include/netdb.h:179:1: warning: this is the location of the previous
definition

Here's an simple patch to match GNU libc behavior and protect the
defines behind __USE_MISC which fixes it at least on OpenBSD.

Timo

--- ext/net/gauche-net.h.orig   Sat Oct 15 08:45:08 2016
+++ ext/net/gauche-net.h        Sat Oct 15 08:45:36 2016
@@ -362,8 +362,10 @@ extern ScmObj Scm_GetAddrinfo(const char *nodename,
                               struct addrinfo *hints);
 extern ScmObj Scm_GetNameinfo(ScmSockAddr *addr, int flags);
 
+#ifdef __USE_MISC
 #define NI_MAXHOST  1025
 #define NI_MAXSERV    32
+#endif
 
 #endif /* HAVE_IPV6 */