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-rw-r--r--lib/readutmp.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/readutmp.c b/lib/readutmp.c
index 91d341a96..ed5889308 100644
--- a/lib/readutmp.c
+++ b/lib/readutmp.c
@@ -27,9 +27,12 @@
#include <stdlib.h>
#include "readutmp.h"
-#include "unlocked-io.h"
#include "xalloc.h"
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#endif
+
/* Copy UT->ut_name into storage obtained from malloc. Then remove any
trailing spaces from the copy, NUL terminate it, and return the copy. */