Bazel Compatibility Issue: Unknown argument to config_setting: constraint_values

[pauldruce]

Hello, when trying to use a version fo GoogleTest more recent that 1.8.1 (August 2018), you are faced with the following error when trying to follow the example outlined in the please-build/cc-rules repo:

I've created a minimal example here: https://github.com/pauldruce/please-demos/tree/gtest-fail-contraint-values

Build stopped after 710ms. 1 target failed:
    ///gtest/gtest//:gtest_main
Unknown argument to config_setting: constraint_values

I've attached the output when I run the build with the flag -v 4.
debug-logs.txt

The error seems to stem from please code directly rather than from the cc-rules. But please let me know if I've created this in the wrong area.