The macros for STD*_FILENO are missing on windows. Add defines for them
to the DPDK-local unistd.h file.

Signed-off-by: Bruce Richardson <bruce.richard...@intel.com>
---
 lib/eal/windows/include/unistd.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/eal/windows/include/unistd.h b/lib/eal/windows/include/unistd.h
index 6b33005b24..78150c6480 100644
--- a/lib/eal/windows/include/unistd.h
+++ b/lib/eal/windows/include/unistd.h
@@ -12,4 +12,15 @@
 
 #include <io.h>
 
+/*
+ * Windows appears to be missing STD*_FILENO macros, so define here.
+ * For simplicity, assume that if STDIN_FILENO is missing, all are,
+ * rather than checking each individually.
+ */
+#ifndef STDIN_FILENO
+#define STDIN_FILENO _fileno(stdin)
+#define STDOUT_FILENO _fileno(stdout)
+#define STDERR_FILENO _fileno(stderr)
+#endif
+
 #endif /* _UNISTD_H_ */
-- 
2.43.0

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