From 436cc4577f6aafecc8eb4933d11402b3a9b17ab8 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Mon, 6 Nov 2017 01:30:19 +0200
Subject: [PATCH] Fix if condition

---
 appveyor.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/appveyor.yml b/appveyor.yml
index 8ee21a0..bc4b652 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -48,5 +48,5 @@ install:
 build: off
 
 test_script:
-  - if "%CXXSTD%" != "" set CXXSTD=cxxstd=%CXXSTD%
+  - if not "%CXXSTD%" == "" set CXXSTD=cxxstd=%CXXSTD%
   - b2 libs/bind/test toolset=%TOOLSET% %CXXSTD%