[glib: 9/25] Fixing various warnings in glib/gmain.c

[Philip Withnall <pwithnall src gnome org>]

commit 81a4698c45c94bbecd02062a9f32c8d79a9be0dd
Author: Emmanuel Fleury <emmanuel fleury u-bordeaux fr>
Date:   Mon Feb 4 09:30:38 2019 +0100

    Fixing various warnings in glib/gmain.c
    
    glib/gmain.c:480:1: error: missing initializer for field ‘closure_callback’ of ‘GSourceFuncs’ {aka 
‘struct _GSourceFuncs’} [-Werror=missing-field-initializers]
     };
     ^
    In file included from glib/giochannel.h:33,
                     from glib/glib.h:54,
                     from glib/glib-unix.h:33,
                     from glib/gmain.c:50:
    glib/gmain.h:262:19: note: ‘closure_callback’ declared here
       GSourceFunc     closure_callback;
                       ^~~~~~~~~~~~~~~~
    glib/gmain.c:491:1: error: missing initializer for field ‘closure_callback’ of ‘GSourceFuncs’ {aka 
‘struct _GSourceFuncs’} [-Werror=missing-field-initializers]
     };
     ^
    In file included from glib/giochannel.h:33,
                     from glib/glib.h:54,
                     from glib/glib-unix.h:33,
                     from glib/gmain.c:50:
    glib/gmain.h:262:19: note: ‘closure_callback’ declared here
       GSourceFunc     closure_callback;
                       ^~~~~~~~~~~~~~~~
    glib/gmain.c:499:1: error: missing initializer for field ‘closure_callback’ of ‘GSourceFuncs’ {aka 
‘struct _GSourceFuncs’} [-Werror=missing-field-initializers]
     };
     ^
    In file included from glib/giochannel.h:33,
                     from glib/glib.h:54,
                     from glib/glib-unix.h:33,
                     from glib/gmain.c:50:
    glib/gmain.h:262:19: note: ‘closure_callback’ declared here
       GSourceFunc     closure_callback;
                       ^~~~~~~~~~~~~~~~
    glib/gmain.c:507:1: error: missing initializer for field ‘closure_callback’ of ‘GSourceFuncs’ {aka 
‘struct _GSourceFuncs’} [-Werror=missing-field-initializers]
     };
     ^
    In file included from glib/giochannel.h:33,
                     from glib/glib.h:54,
                     from glib/glib-unix.h:33,
                     from glib/gmain.c:50:
    glib/gmain.h:262:19: note: ‘closure_callback’ declared here
       GSourceFunc     closure_callback;
                       ^~~~~~~~~~~~~~~~
    glib/gmain.c: In function ‘g_source_set_callback_indirect’:
    glib/gmain.c:1615:68: error: suggest braces around empty body in an ‘if’ statement [-Werror=empty-body]
                                                   callback_funcs->get));
                                                                        ^

 glib/gmain.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)
---
diff --git a/glib/gmain.c b/glib/gmain.c
index 860c39dd1..6b98f8c0c 100644
--- a/glib/gmain.c
+++ b/glib/gmain.c
@@ -476,7 +476,8 @@ GSourceFuncs g_unix_signal_funcs =
   g_unix_signal_watch_prepare,
   g_unix_signal_watch_check,
   g_unix_signal_watch_dispatch,
-  g_unix_signal_watch_finalize
+  g_unix_signal_watch_finalize,
+  NULL, NULL
 };
 #endif /* !G_OS_WIN32 */
 G_LOCK_DEFINE_STATIC (main_context_list);
@@ -487,7 +488,7 @@ GSourceFuncs g_timeout_funcs =
   NULL, /* prepare */
   NULL, /* check */
   g_timeout_dispatch,
-  NULL
+  NULL, NULL, NULL
 };
 
 GSourceFuncs g_child_watch_funcs =
@@ -495,7 +496,8 @@ GSourceFuncs g_child_watch_funcs =
   g_child_watch_prepare,
   g_child_watch_check,
   g_child_watch_dispatch,
-  g_child_watch_finalize
+  g_child_watch_finalize,
+  NULL, NULL
 };
 
 GSourceFuncs g_idle_funcs =
@@ -503,7 +505,7 @@ GSourceFuncs g_idle_funcs =
   g_idle_prepare,
   g_idle_check,
   g_idle_dispatch,
-  NULL
+  NULL, NULL, NULL
 };
 
 /**
@@ -1609,10 +1611,12 @@ g_source_set_callback_indirect (GSource              *source,
     LOCK_CONTEXT (context);
 
   if (callback_funcs != &g_source_callback_funcs)
-    TRACE (GLIB_SOURCE_SET_CALLBACK_INDIRECT (source, callback_data,
-                                              callback_funcs->ref,
-                                              callback_funcs->unref,
-                                              callback_funcs->get));
+    {
+      TRACE (GLIB_SOURCE_SET_CALLBACK_INDIRECT (source, callback_data,
+                                                callback_funcs->ref,
+                                                callback_funcs->unref,
+                                                callback_funcs->get));
+    }
 
   old_cb_data = source->callback_data;
   old_cb_funcs = source->callback_funcs;