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>

Fix option replacement when flags are empty
78dbd751 · Denis Zalevskiy · 9325cc01 · 78dbd751
Commit 78dbd751 authored Jan 05, 2021 by Denis Zalevskiy
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CMakeLists.txt CMakeLists.txt +1 -1

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--- 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()