Created a new stock item for Reset buttons.

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

diff --git a/src/math/interaction.c b/src/math/interaction.c
index 5a736f080a7d6219e8f600c243587912c12cce2b..2d670b2dc726ff98656dd9fbd967a9bfd96d04d3 100644 (file)
--- a/src/math/interaction.c
+++ b/src/math/interaction.c
@@ -25,6 +25,8 @@
   N_1, N_2, ..., N_K categories, then the interaction will have
   N_1 * N_2 * N_3 *...* N_K - 1 entries.
  */
+
+#include <config.h>
 #include <assert.h>
 #include <libpspp/alloc.h>
 #include <gsl/gsl_math.h>