From d44ec48b1c6e84297b1f608e799b72adb195a8d2 Mon Sep 17 00:00:00 2001
From: inikep <inikep@gmail.com>
Date: Mon, 9 May 2016 14:37:41 +0200
Subject: [PATCH] detection of snprintf for Visual <= 2012

---
 appveyor.yml      | 4 +++-
 lib/common/util.h | 7 +++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/appveyor.yml b/appveyor.yml
index 04fea761..303c6317 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -7,7 +7,9 @@ platform:
 - x64
 environment:
   matrix:
+  - PlatformToolset: v100
   - PlatformToolset: v110
+  - PlatformToolset: v120
   - PlatformToolset: v140
 build_script:
 - cmd: >-
@@ -16,7 +18,7 @@ build_script:
     msbuild "visual\2013\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=%PlatformToolset% /t:Clean,Build /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
 test_script:
 - cmd: >-
-    ECHO %APPVEYOR_BUILD_FOLDER%\bin\%PLATFORM%\%CONFIGURATION%\fuzzer.exe %FUZZERTEST%
+    ECHO %APPVEYOR_BUILD_FOLDER%\visual\2013\bin\%PLATFORM%\%CONFIGURATION%\fuzzer.exe %FUZZERTEST%
 
     SET FUZZERTEST=-T5mn
 
diff --git a/lib/common/util.h b/lib/common/util.h
index 61b54295..a548b4ae 100644
--- a/lib/common/util.h
+++ b/lib/common/util.h
@@ -46,9 +46,12 @@ extern "C" {
 #  define _CRT_SECURE_NO_WARNINGS    /* Disable some Visual warning messages for fopen, strncpy */
 #  define _CRT_SECURE_NO_DEPRECATE   /* VS2005 */
 #  pragma warning(disable : 4127)    /* disable: C4127: conditional expression is constant */
-#  define snprintf sprintf_s         /* snprintf unsupported by Visual <= 2012 */
-//#  define snprintf _snprintf    
+#if _MSC_VER <= 1700                 /* (1700 = Visual Studio 2012) */
+    #define snprintf sprintf_s       /* snprintf unsupported by Visual <= 2012 */
+  //#define snprintf _snprintf
 #endif
+#endif
+
 
 /* Unix Large Files support (>4GB) */
 #if !defined(__LP64__)              /* No point defining Large file for 64 bit */