Crash fix.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@22398 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/frontends/qt4/GuiDocument.cpp b/src/frontends/qt4/GuiDocument.cpp
index 19212fa525d37e1d83add8eb38153da2d0e9e9a4..0774f415ab9e8545a7f5644c83e3378c7106e794 100644 (file)
--- a/src/frontends/qt4/GuiDocument.cpp
+++ b/src/frontends/qt4/GuiDocument.cpp
@@ -1713,6 +1713,8 @@ vector<string> GuiDocument::getPackageList(string const & modName) const
 bool GuiDocument::isModuleAvailable(string const & modName) const
 {
        LyXModule * mod = moduleList[modName];
+       if (!mod)
+               return false;
        return mod->isAvailable();
 }