diff -ruN celestia./configure.in celestia/configure.in
--- celestia./configure.in	2004-04-19 22:24:18.000000000 +0200
+++ celestia/configure.in	2004-07-08 20:17:01.825082120 +0200
@@ -358,7 +358,7 @@
 AC_MSG_CHECKING([whether we enable Celestia Extension Language])
 if test "$enable_lua" != "no" ; then
       CXXFLAGS="$CXXFLAGS -DCELX"
-      LDFLAGS="$LDFLAGS -llualib -llua"
+      LDFLAGS="$LDFLAGS -llualib50 -llua50"
       if test "$lua_includes" != "no" ; then
            CXXFLAGS="$CXXFLAGS -I$lua_includes"
       fi