From 7d2c741d1d46f01d2df7b7da9c0b48135c79a316 Mon Sep 17 00:00:00 2001
From: elsid <elsid.mail@gmail.com>
Date: Thu, 7 Mar 2019 00:18:40 +0300
Subject: [PATCH] Fix compare with empty value

---
 CI/before_script.msvc.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CI/before_script.msvc.sh b/CI/before_script.msvc.sh
index 6b2502bc49..5ed7283fd3 100644
--- a/CI/before_script.msvc.sh
+++ b/CI/before_script.msvc.sh
@@ -446,7 +446,7 @@ echo
 if [ -z $APPVEYOR ]; then
 	printf "Boost 1.67.0... "
 else
-	if [ $MSVC_VER -eq 12.0 ]; then
+	if [ "${MSVC_VER}" -eq 12.0 ]; then
 		printf "Boost 1.58.0 AppVeyor... "
 	else
 		printf "Boost 1.67.0 AppVeyor... "