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Diffstat (limited to 'Build/source/texk/dtl/dv2dt.c')
-rw-r--r--Build/source/texk/dtl/dv2dt.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/Build/source/texk/dtl/dv2dt.c b/Build/source/texk/dtl/dv2dt.c
index 8ae6052e479..7627a9d3215 100644
--- a/Build/source/texk/dtl/dv2dt.c
+++ b/Build/source/texk/dtl/dv2dt.c
@@ -24,6 +24,14 @@
#include <config.h>
#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#else
+#ifndef __cplusplus
+extern int isatty (int );
+#endif /* __cplusplus */
+#endif
+
#ifdef KPATHSEA
#include <kpathsea/c-fopen.h>
#endif
@@ -164,7 +172,7 @@ main
if (argc > 1)
open_dvi (argv[1], &dvi);
else if (!isatty(fileno(dvi)))
- SET_BINARY(fileno(dvi));
+ (void)SET_BINARY(fileno(dvi));
if (argc > 2)
open_dtl (argv[2], &dtl);