[gtk/csserror-g-decls] csserror: Add G_BEGIN_DECLS and G_END_DECLS

[Kjell Ahlstedt <kjellahl src gnome org>]

commit c21063e71e568f631132d5d9d24230f732d79b17
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Wed Apr 24 16:32:54 2019 +0200

    csserror: Add G_BEGIN_DECLS and G_END_DECLS
    
    Necessary when the header file is included in C++ code.
    
    Merge request !773

 gtk/css/gtkcsserror.h | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/gtk/css/gtkcsserror.h b/gtk/css/gtkcsserror.h
index 6f7dbee012..a9392a2317 100644
--- a/gtk/css/gtkcsserror.h
+++ b/gtk/css/gtkcsserror.h
@@ -24,6 +24,8 @@
 #include <glib.h>
 #include <gdk/gdkversionmacros.h>
 
+G_BEGIN_DECLS
+
 /**
  * GTK_CSS_PARSER_ERROR:
  *
@@ -44,4 +46,6 @@ GQuark gtk_css_parser_error_quark (void);
 GDK_AVAILABLE_IN_ALL
 GQuark gtk_css_parser_warning_quark (void);
 
+G_END_DECLS
+
 #endif /* __GTK_CSS_ERROR_H__ */