diff -r 48b0adfe3059 -r 4866573c6944 configure.ac
--- a/configure.ac	Thu Jan 22 22:54:45 2009 +0000
+++ b/configure.ac	Thu Feb 05 22:43:29 2009 +0000
@@ -202,6 +202,27 @@
        AC_DEFINE([HAVE_RPMLIB], [1], [Define if you have librpm])])
 AC_SUBST(RPM_LIBS)
 AM_CONDITIONAL([HAVE_RPMLIB], [test -n "$RPM_LIBS"])
+
+AC_ARG_WITH([lua],
+            [AS_HELP_STRING([--without-lua], [disable support for lua])],
+            [],
+            [with_lua=yes])
+          
+LUA_CFLAGS=
+LUA_LIBS=
+AS_IF([test "x$with_lua" != xno],
+  [PKG_CHECK_MODULES(LUA, [lua])
+   REQUIREMENTS="$REQUIREMENTS lua"
+   AC_DEFINE([HAVE_LUA], [1], [Define if you have lua])
+   AC_PATH_PROG(LUA, [lua], [no])
+   AS_IF([test "x$LUA" = xno],
+     [AC_MSG_ERROR([Can't find lua program. Please install lua-devel or use --without-lua.])])
+   AC_DEFINE_UNQUOTED([LUA_BINARY], ["$LUA"],
+     [Define to the location of the lua binary])])
+AC_SUBST(LUA_CFLAGS)
+AC_SUBST(LUA_LIBS)
+AM_CONDITIONAL([HAVE_LUA], [test "x$with_lua" != xno])
+
 AC_SUBST(REQUIREMENTS)
 
 if test "x$GCC" = "xyes"; then