Fix some warnings.

[pspp-builds.git] / src / math / sort.c

diff --git a/src/math/sort.c b/src/math/sort.c
index 20d8dde73cb81a34fca282eab444d10760a300ec..4d64b32474412bd3fcd1682ab0f572315fa5bc99 100644 (file)
--- a/src/math/sort.c
+++ b/src/math/sort.c
@@ -30,6 +30,7 @@
 #include <data/case.h>
 #include <data/casefile.h>
 #include <libpspp/message.h>
+#include <language/expressions/public.h>
 
 #include <libpspp/misc.h>
 #include <data/settings.h>