From 4f1acdd15890cea8cfba011ef470a905a3963d60 Mon Sep 17 00:00:00 2001
From: inikep <inikep@gmail.com>
Date: Wed, 25 May 2016 12:41:41 +0200
Subject: [PATCH] usage of fileno() only on POSIX and Windows

---
 programs/zbufftest.c | 2 --
 programs/zstdcli.c   | 5 ++++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/programs/zbufftest.c b/programs/zbufftest.c
index fce0ab275..c780b8f4e 100644
--- a/programs/zbufftest.c
+++ b/programs/zbufftest.c
@@ -262,8 +262,6 @@ static size_t FUZ_randomLength(U32* seed, U32 maxLog)
     return FUZ_rLogLength(seed, logLength);
 }
 
-#define MIN(a,b)   ( (a) < (b) ? (a) : (b) )
-
 #define CHECK(cond, ...) if (cond) { DISPLAY("Error => "); DISPLAY(__VA_ARGS__); \
                          DISPLAY(" (seed %u, test nb %u)  \n", seed, testNb); goto _output_error; }
 
diff --git a/programs/zstdcli.c b/programs/zstdcli.c
index 13ff7955d..215157873 100644
--- a/programs/zstdcli.c
+++ b/programs/zstdcli.c
@@ -52,9 +52,12 @@
 #  include <io.h>       /* _isatty */
 #  define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
 #else
-   extern int fileno(FILE *stream);  /* triggers fileno() within <stdio.h> on POSIX */
+#if _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE
 #  include <unistd.h>   /* isatty */
 #  define IS_CONSOLE(stdStream) isatty(fileno(stdStream))
+#else
+#  define IS_CONSOLE(stdStream) 0
+#endif
 #endif