inkscape: add a patch for GCC 6.

component/inkscape/buildout.cfg

@@ -14,6 +14,7 @@ extends =
   ../libsigc/buildout.cfg
   ../libxml2/buildout.cfg
   ../libxslt/buildout.cfg
+  ../patch/buildout.cfg
   ../perl/buildout.cfg
   ../pkgconfig/buildout.cfg
   ../popt/buildout.cfg
@@ -35,6 +36,11 @@ environment =
 recipe = slapos.recipe.cmmi
 url = https://inkscape.org/en/gallery/item/3860/inkscape-0.91.tar.bz2
 md5sum = 278dfa4514adcde23546370ec2c84581
+patch-options = -p0
+# based on
+# http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/revision/15017
+patches =
+  ${:_profile_base_location_}/inkscape-0.91_gcc6.patch#ce3ddbb90f7e5e81fd322469194b6c3c
 pkg_config_depends = ${gtkmm:location}/lib/pkgconfig:${gtkmm:pkg_config_depends}:${gsl:location}/lib/pkgconfig:${popt:location}/lib/pkgconfig:${garbage-collector:location}/lib/pkgconfig:${libxslt:location}/lib/pkgconfig
 configure-options =
   --disable-static
@@ -45,7 +51,7 @@ configure-options =
   --disable-cdr
   --without-gnome-vfs
 environment =
-  PATH=${freetype:location}/bin:${gdk-pixbuf:location}/bin:${gettext:location}/bin:${glib:location}/bin:${intltool:location}/bin:${libxml2:location}/bin:${pkgconfig:location}/bin:${pango:location}/bin:${perl:location}/bin:%(PATH)s
+  PATH=${freetype:location}/bin:${gdk-pixbuf:location}/bin:${gettext:location}/bin:${glib:location}/bin:${intltool:location}/bin:${libxml2:location}/bin:${pango:location}/bin:${patch:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
   CPPFLAGS=-I${boost-lib:location}/include -I${cairo:location}/include -I${garbage-collector:location}/include -I${libpng:location}/include -I${popt:location}/include  -I${zlib:location}/include
 # rpath seems not taken from pkgconfig...

component/inkscape/inkscape-0.91_gcc6.patch

+--- src/ui/dialog/layer-properties.cpp	2014-12-21 21:58:32 +0000
++++ src/ui/dialog/layer-properties.cpp	2016-07-18 17:19:25 +0000
+@@ -146,7 +146,7 @@
+     destroy_();
+     Glib::signal_idle().connect(
+         sigc::bind_return(
+-            sigc::bind(sigc::ptr_fun(&::operator delete), this),
++            sigc::bind(sigc::ptr_fun<void*, void>(&::operator delete), this),
+             false 
+         )
+     );