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diff -up easystroke-0.6.0/actions.cc.lambda easystroke-0.6.0/actions.cc
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--- easystroke-0.6.0/actions.cc.lambda	2013-03-27 11:52:38.000000000 -0400
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+++ easystroke-0.6.0/actions.cc	2016-02-01 12:04:07.337863849 -0500
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@@ -51,10 +51,10 @@ void TreeViewMulti::on_drag_begin(const
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 	context->set_icon(pb, pb->get_width(), pb->get_height());
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 }
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-bool negate(bool b) { return !b; }
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-
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 TreeViewMulti::TreeViewMulti() : Gtk::TreeView(), pending(false) {
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-	get_selection()->set_select_function(sigc::group(&negate, sigc::ref(pending)));
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+	get_selection()->set_select_function([this](Glib::RefPtr<Gtk::TreeModel> const&, Gtk::TreeModel::Path const&, bool) {
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+		return !pending;
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+	});
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 }
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 enum Type { COMMAND, KEY, TEXT, SCROLL, IGNORE, BUTTON, MISC };
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diff -up easystroke-0.6.0/Makefile.lambda easystroke-0.6.0/Makefile
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--- easystroke-0.6.0/Makefile.lambda	2016-02-01 12:05:13.012390968 -0500
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+++ easystroke-0.6.0/Makefile	2016-02-01 12:06:06.620004974 -0500
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@@ -21,8 +21,7 @@ LOCALEDIR= $(PREFIX)/share/locale
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 DFLAGS   =
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 OFLAGS   = -O2
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 AOFLAGS  = -O3
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-STROKEFLAGS  = -Wall -std=c99 $(DFLAGS)
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-CXXFLAGS = -Wall $(DFLAGS) -DLOCALEDIR=\"$(LOCALEDIR)\" `pkg-config gtkmm-3.0 dbus-glib-1 --cflags`
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+CXXFLAGS = -Wall $(DFLAGS) -std=c++11 -DLOCALEDIR=\"$(LOCALEDIR)\" `pkg-config gtkmm-3.0 dbus-glib-1 --cflags`
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 CFLAGS   = -Wall $(DFLAGS) -DLOCALEDIR=\"$(LOCALEDIR)\" `pkg-config gtk+-3.0 --cflags` -DGETTEXT_PACKAGE='"easystroke"'
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 LDFLAGS  = $(DFLAGS)
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@@ -63,7 +62,7 @@ $(BINARY): $(OFILES)
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 	$(CXX) $(LDFLAGS) -o $@ $(OFILES) $(LIBS)
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 stroke.o: stroke.c
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-	$(CC) $(STROKEFLAGS) $(AOFLAGS) -MT $@ -MMD -MP -MF $*.Po -o $@ -c $<
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+	$(CC) $(CFLAGS) $(AOFLAGS) -MT $@ -MMD -MP -MF $*.Po -o $@ -c $<
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 %.o: %.c
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 	$(CC) $(CFLAGS) $(OFLAGS) -MT $@ -MMD -MP -MF $*.Po -o $@ -c $<