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-rw-r--r--hungarian.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hungarian.c b/hungarian.c
index 38c9f55..faf7243 100644
--- a/hungarian.c
+++ b/hungarian.c
@@ -11,6 +11,7 @@
*/
+#include <sys/types.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>