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-rw-r--r--camlibs/mustek/rs232.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/camlibs/mustek/rs232.c b/camlibs/mustek/rs232.c
index a4ce4866a..5fedcf2ba 100644
--- a/camlibs/mustek/rs232.c
+++ b/camlibs/mustek/rs232.c
@@ -31,6 +31,7 @@
#include <fcntl.h>
#include <sys/time.h>
+#include <unistd.h>
/*