[gtk+] Use built-in gtk-update-icon-cache

[Cosimo Cecchi <cosimoc src gnome org>]

commit 345f2a484b6d70fcdb2cd861fc66cca9c8c6f493
Author: Cosimo Cecchi <cosimo endlessm com>
Date:   Mon May 18 17:26:25 2015 -0700

    Use built-in gtk-update-icon-cache
    
    To generate the icon cache files.
    
    We want to avoid a dependency loop if possible; additionally, on some
    Debian-based systems gtk-update-icon-cache maps to the GTK2 version of
    the utility and the GTK3 version is renamed to
    gtk-update-icon-cache-3.0.
    
    To avoid a build dependency on GTK2, use the binary that we just built
    in-tree.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=749593

 demos/gtk-demo/Makefile.am       |    2 +-
 demos/widget-factory/Makefile.am |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/demos/gtk-demo/Makefile.am b/demos/gtk-demo/Makefile.am
index 19c3abf..43cba92 100644
--- a/demos/gtk-demo/Makefile.am
+++ b/demos/gtk-demo/Makefile.am
@@ -214,7 +214,7 @@ dist_appsicon32_DATA = data/32x32/gtk3-demo.png data/32x32/gtk3-demo-symbolic.sy
 dist_appsicon48_DATA = data/48x48/gtk3-demo.png data/48x48/gtk3-demo-symbolic.symbolic.png
 dist_appsicon256_DATA = data/256x256/gtk3-demo.png data/256x256/gtk3-demo-symbolic.symbolic.png
 
-update_icon_cache = gtk-update-icon-cache --ignore-theme-index --force
+update_icon_cache = $(top_builddir)/gtk/gtk-update-icon-cache --ignore-theme-index --force
 
 install-data-hook: install-update-icon-cache
 uninstall-hook: uninstall-update-icon-cache
diff --git a/demos/widget-factory/Makefile.am b/demos/widget-factory/Makefile.am
index 9c057ff..b9c481d 100644
--- a/demos/widget-factory/Makefile.am
+++ b/demos/widget-factory/Makefile.am
@@ -47,7 +47,7 @@ dist_appsicon32_DATA = data/32x32/gtk3-widget-factory.png data/32x32/gtk3-widget
 dist_appsicon48_DATA = data/48x48/gtk3-widget-factory.png 
data/48x48/gtk3-widget-factory-symbolic.symbolic.png
 dist_appsicon256_DATA = data/256x256/gtk3-widget-factory.png 
data/256x256/gtk3-widget-factory-symbolic.symbolic.png
 
-update_icon_cache = gtk-update-icon-cache --ignore-theme-index --force
+update_icon_cache = $(top_builddir)/gtk/gtk-update-icon-cache --ignore-theme-index --force
 
 install-data-hook: install-update-icon-cache
 uninstall-hook: uninstall-update-icon-cache