--- CMakeLists.txt.orig	2022-01-21 23:54:09.004204000 +0100
+++ CMakeLists.txt	2022-01-22 17:06:23.060147000 +0100
@@ -18,7 +18,7 @@
 
 # Pick the C++ standard to compile with.
 # Abseil currently supports C++11, C++14, and C++17.
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 project (libphonenumber)
@@ -101,6 +101,7 @@
 endif ()
 
 # Find all the required libraries and programs.
+find_package(absl REQUIRED)
 if (${USE_BOOST} STREQUAL "ON")
   add_definitions ("-DI18N_PHONENUMBERS_USE_BOOST")
   if (WIN32)