Don't force every algebraic class to implement archiving/unarchiving.

[ginac.git] / ginac / ex.h

diff --git a/ginac/ex.h b/ginac/ex.h
index 60d4080c7d7cdeaccad22f9baa7cacc2f6464dfd..e3766a06bd05cbafff6e473be210066f11385c3e 100644 (file)
--- a/ginac/ex.h
+++ b/ginac/ex.h
@@ -43,6 +43,7 @@ namespace GiNaC {
  *
  *  @see utils.cpp */
 class library_init {
+       static void init_unarchivers();
 public:
        library_init();
        ~library_init();