From 78dbd7514af2111d2a9beaaf1cd4ce7f57e9a172 Mon Sep 17 00:00:00 2001
From: Denis Zalevskiy <denis.zalevskiy@basemark.com>
Date: Tue, 5 Jan 2021 11:25:24 +0200
Subject: [PATCH] Fix option replacement when flags are empty

For the scenario when cmake is executed from MSVC with empty CXX flags.

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@basemark.com>
---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ada2b8fb..5b176e45 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -186,7 +186,7 @@ elseif(MSVC)
     if(NOT ENABLE_RTTI)
         string(FIND "${CMAKE_CXX_FLAGS}" "/GR" MSVC_HAS_GR)
         if(MSVC_HAS_GR)
-            string(REGEX REPLACE /GR /GR- CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
+            string(REGEX REPLACE "/GR" "/GR-" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
         else()
             add_compile_options(/GR-) # Disable RTTI
         endif()