Look for vcpkg submodule at top level CmakeLists.txt

Author: ShyAssassin

CMakeLists.txt

@@ -1,9 +1,9 @@
 cmake_minimum_required(VERSION 3.9)
 
 # If vcpkg present as submodule, bring in the toolchain
-if( EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake )
-	message(STATUS "Found ${CMAKE_CURRENT_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake; using it!")
-	set(CMAKE_TOOLCHAIN_FILE ${CMAKE_CURRENT_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake
+if( EXISTS ${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake )
+	message(STATUS "Found ${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake; using it!")
+	set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake
 		CACHE STRING "Vcpkg toolchain file")
 endif()