ROOTTEST_COMPILE_MACRO: fix default_root_include_path

quotes are escaped by cmake, making the ROOT_INCLUDE_PATH not work, paths with spaces are not supported for some time

(cherry picked from commit f0459bc)

Author: andresailer

cmake/modules/RootMacros.cmake

@@ -2400,8 +2400,8 @@ macro(ROOTTEST_COMPILE_MACRO filename)
 
   cmake_path(CONVERT "${CMAKE_CURRENT_BINARY_DIR}" TO_NATIVE_PATH_LIST NATIVE_BINARY_DIR)
   set(root_compile_macro ${CMAKE_COMMAND} -E env
-      ROOT_LIBRARY_PATH="${NATIVE_BINARY_DIR}"
-      ROOT_INCLUDE_PATH="${CMAKE_CURRENT_BINARY_DIR}:${DEFAULT_ROOT_INCLUDE_PATH}"
+      ROOT_LIBRARY_PATH=${NATIVE_BINARY_DIR}
+      ROOT_INCLUDE_PATH=${CMAKE_CURRENT_BINARY_DIR}:${DEFAULT_ROOT_INCLUDE_PATH}
       ${ROOT_root_CMD}
       -e "gSystem->SetBuildDir(\"${CMAKE_CURRENT_BINARY_DIR}\", true)"
       ${RootMacroDirDefines}