Add missing header.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@22844 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/frontends/qt4/GuiSymbols.h b/src/frontends/qt4/GuiSymbols.h
index cf2507782f20a399a10de50f5ec954f50c582184..ad633015c50f6c11c7934687ec749a4a976ada74 100644 (file)
--- a/src/frontends/qt4/GuiSymbols.h
+++ b/src/frontends/qt4/GuiSymbols.h
@@ -15,6 +15,8 @@
 #include "DialogView.h"
 #include "ui_SymbolsUi.h"
 
+#include <map>
+
 class QListWidgetItem;
 
 namespace lyx {