Make sanitizers truly optional (#4689)

CMakeLists.txt

@@ -91,7 +91,7 @@ if (WIN32)
     find_package(WinToast REQUIRED)
 endif ()
 
-find_package(Sanitizers)
+find_package(Sanitizers QUIET)
 
 # Find boost on the system
 # `OPTIONAL_COMPONENTS random` is required for vcpkg builds to link.

src/CMakeLists.txt

@@ -710,7 +710,12 @@ if (BUILD_APP)
     else()
         add_executable(${EXECUTABLE_PROJECT} main.cpp)
     endif()
-    add_sanitizers(${EXECUTABLE_PROJECT})
+
+    if(COMMAND add_sanitizers)
+        add_sanitizers(${EXECUTABLE_PROJECT})
+    else()
+        message(WARNING "Sanitizers support is disabled")
+    endif()
 
     target_include_directories(${EXECUTABLE_PROJECT} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_BINARY_DIR}/autogen/)