Disable deprecated builtins warnings for absl-cpp.

Author: jonsimantov

CMakeLists.txt

@@ -156,6 +156,12 @@ if(APPLE)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nullability-completeness")
 endif()
 
+if(DESKTOP)
+  # For desktop, disable deprecated builtins warnings, as absl-cpp uses them.
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-deprecated-builtins")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-builtins")
+endif()
+
 if(DESKTOP AND NOT MSVC AND NOT APPLE)
   # Linux-specific option.
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-maybe-uninitialized")