- AC_DEFINE_UNQUOTED([PANDORA_BUILTIN_LIST],[$pandora_builtin_list],
- [List of plugins to be built in])
+ AS_IF([test "x$pandora_builtin_list" = "x"], pandora_builtin_list="NULL")
+ AC_SUBST([PANDORA_BUILTIN_LIST],[$pandora_builtin_list])
+ m4_ifval(m4_normalize([$1]),[
+ AC_CONFIG_FILES($*)
+ ],[
+ AC_DEFINE_UNQUOTED([PANDORA_BUILTIN_LIST],[$pandora_builtin_list],
+ [List of plugins to be built in])
+ ])
+