[libsoup] Try to silence GTimeVal deprecation warning in public header

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 961e87ff3b9a4e8b6011bfad698aeac44cfdf059
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Tue Aug 6 16:04:46 2019 -0500

    Try to silence GTimeVal deprecation warning in public header
    
    Warnings in public headers are unfortunate. :(

 libsoup/soup-date.h | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/libsoup/soup-date.h b/libsoup/soup-date.h
index 7dbbc87d..319ed9b9 100644
--- a/libsoup/soup-date.h
+++ b/libsoup/soup-date.h
@@ -58,9 +58,17 @@ char     *soup_date_to_string       (SoupDate       *date,
                                     SoupDateFormat  format);
 SOUP_AVAILABLE_IN_2_24
 time_t    soup_date_to_time_t       (SoupDate       *date);
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#endif
 SOUP_AVAILABLE_IN_2_24
 void      soup_date_to_timeval      (SoupDate       *date,
                                     GTimeVal       *time);
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
 
 SOUP_AVAILABLE_IN_2_24
 gboolean  soup_date_is_past         (SoupDate       *date);