[libsoup/structured-log] Enable structured logging

[Ignacio Casal Quinteiro <icq src gnome org>]

commit d90d757f5426c266b30e43b5b55b5a23fab32710
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Thu Feb 7 09:25:06 2019 +0100

    Enable structured logging

 meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/meson.build b/meson.build
index 0221785e..c1b77547 100644
--- a/meson.build
+++ b/meson.build
@@ -28,6 +28,7 @@ add_project_arguments(default_source_flag, language: 'c')
 
 common_flags = [
   '-DHAVE_CONFIG_H',
+  '-DG_LOG_USE_STRUCTURED=1',
 ]
 
 cc = meson.get_compiler('c')