[glib: 2/4] gio: UNIX_PATH_MAX may be defined.

[Xavier Claessens <xclaesse src gnome org>]

commit f96417e470ff4241260d740f43884a178a5bce5a
Author: Jehan <jehan girinstud io>
Date:   Sat Jun 9 01:24:08 2018 +0200

    gio: UNIX_PATH_MAX may be defined.
    
    On an Android build, API 22, at least, I got a:
    > warning: "UNIX_PATH_MAX" redefined
    
    We were currently defining it as:
    > #define UNIX_PATH_MAX sizeof (((struct sockaddr_un *) 0)->sun_path)
    Whereas Android's headers define this variable of sockaddr_un as:
    > char sun_path[UNIX_PATH_MAX];
    So by definition, we will still get the right result in the end by just
    using the original value of UNIX_PATH_MAX.

 gio/gunixsocketaddress.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gio/gunixsocketaddress.c b/gio/gunixsocketaddress.c
index b0d3c8fe4..27e195e47 100644
--- a/gio/gunixsocketaddress.c
+++ b/gio/gunixsocketaddress.c
@@ -66,7 +66,9 @@ enum
   PROP_ADDRESS_TYPE
 };
 
+#ifndef UNIX_PATH_MAX
 #define UNIX_PATH_MAX sizeof (((struct sockaddr_un *) 0)->sun_path)
+#endif
 
 struct _GUnixSocketAddressPrivate
 {