[gtk+/gtk-3-4] gtk: Add private headers to EXTRA_DIST

[Matthias Clasen <matthiasc src gnome org>]

commit d72a712eed9c7c53f0bdf21b25edc6850a3fac34
Author: Rico Tzschichholz <ricotz t-online de>
Date:   Tue May 8 09:16:51 2012 +0200

    gtk: Add private headers to EXTRA_DIST
    
    This got lost with 985881ffcc315e20012a42dfba6cf5ab0046a92c

 gtk/Makefile.am |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index 1c4285d..7b8992b 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -899,8 +899,9 @@ gtk_private_h_sources += $(gtk_use_quartz_private_h_sources)
 endif
 
 gtk_all_private_h_sources = \
+	$(gtk_private_h_sources) \
 	$(gtk_use_x11_private_h_sources) \
-	 $(gtk_use_win32_private_h_sources) \
+	$(gtk_use_win32_private_h_sources) \
 	$(gtk_use_quartz_private_h_sources)
 
 if !USE_X11