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-rw-r--r--src/permchain.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/permchain.c b/src/permchain.c
index 6d886ef..a82b8a3 100644
--- a/src/permchain.c
+++ b/src/permchain.c
@@ -18,6 +18,7 @@
*/
#include "permchain.h"
+#include <alloca.h>
#include <assert.h>
#include <string.h>
#include <ctype.h>