File fix-appimage_dir.patch of Package celestia

--- a/src/celestia/gtk/main.cpp
+++ b/src/celestia/gtk/main.cpp
@@ -276,13 +276,19 @@ static void initRealize(GtkWidget* widge
 /* MAIN */
 int main(int argc, char* argv[])
 {
+	setlocale(LC_ALL, "");
 	/* Force number displays into C locale. */
 	setlocale(LC_NUMERIC, "C");
-	setlocale(LC_ALL, "");
 
 	#ifndef WIN32
-	bindtextdomain(PACKAGE, LOCALEDIR);
+	string localeDir(LOCALEDIR);
+	const char *appimageDir = getenv("APPDIR");
+	if (appimageDir != NULL)
+		localeDir = (string)appimageDir + "/" + localeDir;
+	bindtextdomain(PACKAGE, localeDir.c_str());
 	bind_textdomain_codeset(PACKAGE, "UTF-8");
+	bindtextdomain("celestia_constellations", localeDir.c_str());
+	bind_textdomain_codeset("celestia_constellations", "UTF-8");
 	textdomain(PACKAGE);
 	#endif /* WIN32 */