Fix compilation without CELX

src/celestia/CMakeLists.txt

@@ -34,10 +34,12 @@ elseif(_UNIX AND ENABLE_THEORA)
   )
 endif()
 
-add_library(celestia STATIC ${CELESTIA_SOURCES}
-                            $<TARGET_OBJECTS:celcommonscript>
-                            $<TARGET_OBJECTS:cellegacyscript>
-                            $<TARGET_OBJECTS:celluascript>)
+set(SCRIPT_LIBS $<TARGET_OBJECTS:celcommonscript> $<TARGET_OBJECTS:cellegacyscript>)
+if(ENABLE_CELX)
+  set(SCRIPT_LIBS ${SCRIPT_LIBS} $<TARGET_OBJECTS:celluascript>)
+endif()
+
+add_library(celestia STATIC ${CELESTIA_SOURCES} ${SCRIPT_LIBS})
 
 #[[
 add_library(celestia SHARED ${CELESTIA_SOURCES})

src/celestia/celestiacore.cpp

@@ -146,7 +146,9 @@ CelestiaCore::CelestiaCore() :
     renderer(new Renderer()),
     timer(new Timer()),
     m_legacyPlugin(make_unique<LegacyScriptPlugin>(this)),
+#ifdef CELX
     m_luaPlugin(make_unique<LuaScriptPlugin>(this)),
+#endif
     m_scriptMaps(make_shared<ScriptMaps>())
 {
 
@@ -855,7 +857,6 @@ void CelestiaCore::keyUp(int key, int)
     shiftKeysPressed[key] = false;
 }
 
-#ifdef CELX
 static string getKeyName(const char* c, int modifiers)
 {
     unsigned int length = strlen(c);
@@ -873,7 +874,6 @@ static string getKeyName(const char* c, int modifiers)
 
     return string(c);
 }
-#endif
 
 void CelestiaCore::charEntered(char c, int modifiers)
 {

src/celestia/celestiacore.h

@@ -399,7 +399,9 @@ class CelestiaCore // : public Watchable<CelestiaCore>
     std::unique_ptr<celestia::scripts::IScript>             m_script;
     std::unique_ptr<celestia::scripts::IScriptHook>         m_scriptHook;
     std::unique_ptr<celestia::scripts::LegacyScriptPlugin>  m_legacyPlugin;
+#ifdef CELX
     std::unique_ptr<celestia::scripts::LuaScriptPlugin>     m_luaPlugin;
+#endif
     std::shared_ptr<celestia::scripts::ScriptMaps>          m_scriptMaps;
 
     enum ScriptState