ninja complains about missing files, check the
build.rs to see if it
writes source code files.
If so, modify
gnrt_config.toml to add
build-script-outputs to the
crate. If this is a transitive dependency, that is, one on which Chromium code
should not directly depend, also add
allow-first-party-usage=false. There are
several examples already in that file:
allow-first-party-usage = false
build-script-outputs = ["tables.rs"]
gnrt.py -- gen to regenerate
BUILD.gn files to inform ninja
that this particular output file is input to subsequent build steps.