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-rw-r--r--tests/test-dfa-match-aux.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/test-dfa-match-aux.c b/tests/test-dfa-match-aux.c
index cef29e6a83..bbe246836e 100644
--- a/tests/test-dfa-match-aux.c
+++ b/tests/test-dfa-match-aux.c
@@ -22,6 +22,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <unistd.h>
#include <regex.h>
#include <dfa.h>
#include <localeinfo.h>