diff --git a/programs/datagen.c b/programs/datagen.c
index da5124cfc..8209c8517 100644
--- a/programs/datagen.c
+++ b/programs/datagen.c
@@ -9,17 +9,10 @@
 
 
 
-/* *************************************
-*  Compiler Options
-***************************************/
-#if defined(_MSC_VER)
-#  define _CRT_SECURE_NO_WARNINGS    /* removes Visual warning on strerror() */
-#  define _CRT_SECURE_NO_DEPRECATE   /* removes VS2005 warning on strerror() */
-#endif
-
 /*-************************************
 *  Dependencies
 **************************************/
+#include "platform.h"  /* Compiler options */
 #include "util.h"      /* U32 */
 #include <stdlib.h>    /* malloc, free */
 #include <stdio.h>     /* FILE, fwrite, fprintf */
diff --git a/programs/fileio.c b/programs/fileio.c
index 58fe7e355..4f6db992f 100644
--- a/programs/fileio.c
+++ b/programs/fileio.c
@@ -11,7 +11,6 @@
 *  Compiler Options
 ***************************************/
 #ifdef _MSC_VER   /* Visual */
-#  define _CRT_SECURE_NO_WARNINGS  /* removes Visual warning on strerror() */
 #  pragma warning(disable : 4204)  /* non-constant aggregate initializer */
 #endif
 #if defined(__MINGW32__) && !defined(_POSIX_SOURCE)
diff --git a/programs/zstdcli.c b/programs/zstdcli.c
index 0d7ce8b3b..29fcb746b 100644
--- a/programs/zstdcli.c
+++ b/programs/zstdcli.c
@@ -38,20 +38,6 @@
 #include "zstd.h"     /* ZSTD_VERSION_STRING */
 
 
-/*-************************************
-*  OS-specific Includes
-**************************************/
-#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__)
-#  include <io.h>       /* _isatty */
-#  define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
-#elif (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 1)) || (PLATFORM_POSIX_VERSION >= 200112L)  /* isatty requires POSIX.1-2001 */
-#  include <unistd.h>   /* isatty */
-#  define IS_CONSOLE(stdStream) isatty(fileno(stdStream))
-#else
-#  define IS_CONSOLE(stdStream) 0
-#endif
-
-
 /*-************************************
 *  Constants
 **************************************/