X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2Finteraction.h;h=23bd4f219eaf2813b06f240f91ca27e06ec61a50;hb=75e7e4241ba2424c3803548bcf2da0382faf7349;hp=ccd6706f51f4252d2c13e99b800cf76edf81a47e;hpb=ed8c5b8c6ef50e338f2c63d2ceb69e33dec0ebac;p=pspp-builds.git

diff --git a/src/math/interaction.h b/src/math/interaction.h
index ccd6706f..23bd4f21 100644
--- a/src/math/interaction.h
+++ b/src/math/interaction.h
@@ -33,6 +33,7 @@ struct interaction
 };
 
 struct interaction * interaction_create (const struct variable *);
+struct interaction * interaction_clone (const struct interaction *);
 void interaction_destroy (struct interaction *);
 void interaction_add_variable (struct interaction *, const struct variable *);
 void interaction_dump (const struct interaction *);