vcpkg/ports/google-cloud-cpp/support_absl_cxx17.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3fb0564..b4a251b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,6 +29,14 @@ if (NOT "${PROJECT_VERSION_PRE_RELEASE}" STREQUAL "")
     set(PROJECT_VERSION "${PROJECT_VERSION}-${PROJECT_VERSION_PRE_RELEASE}")
 endif ()
 
+find_package(absl CONFIG REQUIRED)
+
+# Use CMAKE_CXX_STANDARD=17 if ABSL_USE_CXX17 is set
+if (ABSL_USE_CXX17)
+    message(STATUS "Found absl uses CXX17, enable CXX17 feature.")
+    set(CMAKE_CXX_STANDARD 17)
+endif ()
+
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
     if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.3)
         message(