[gtk+] docs: link against libgdk-3.la

[Matthias Clasen <matthiasc src gnome org>]

commit 79be9a341bd092cb372c5d8a562400573daf14b4
Author: VÃctor Manuel JÃquez Leal <vjaquez igalia com>
Date:   Wed Jul 4 18:41:36 2012 +0200

    docs: link against libgdk-3.la
    
    https://bugzilla.gnome.org/show_bug.cgi?id=679409

 docs/reference/gtk/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtk/Makefile.am b/docs/reference/gtk/Makefile.am
index 6f53381..ca821e9 100644
--- a/docs/reference/gtk/Makefile.am
+++ b/docs/reference/gtk/Makefile.am
@@ -107,6 +107,7 @@ CPPFLAGS += \
 	-UGTK_DISABLE_SINGLE_INCLUDES
 
 GTKDOC_LIBS = \
+	$(top_builddir)/gdk/libgdk-3.la \
 	$(top_builddir)/gtk/libgtk-3.la	\
 	$(GTK_DEP_LIBS)