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-rw-r--r--libgfortran/io/unix.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libgfortran/io/unix.c b/libgfortran/io/unix.c
index 08fe4fe..dd2715b 100644
--- a/libgfortran/io/unix.c
+++ b/libgfortran/io/unix.c
@@ -30,7 +30,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#include <stdlib.h>
#include <limits.h>
+#ifdef HAVE_UNISTD_H
#include <unistd.h>
+#endif
+
#include <sys/stat.h>
#include <fcntl.h>
#include <assert.h>