While this isn't an issue when running the examples for this repo (i.e. bazel build --enable_bzlmod //examples/hello_world:hello_world works fine — rules_cc appears to be implicitly added to the repo mapping for the current root module's repo), when depending on rules_perl from another module this becomes an issue.
Even if the dependent pulls in the rules_cc module, rules_cc will not be visible in rules_perl's mapping unless rules_perl also declares a dependency on it.
rules_perlrequires therules_ccrepository to be present: https://github.com/bazelbuild/rules_perl/blob/022b8daf2bb4836ac7a50e4a1d8ea056a3e1e403/perl/perl.bzl#L19While this isn't an issue when running the examples for this repo (i.e.
bazel build --enable_bzlmod //examples/hello_world:hello_worldworks fine — rules_cc appears to be implicitly added to the repo mapping for the current root module's repo), when depending onrules_perlfrom another module this becomes an issue.Even if the dependent pulls in the
rules_ccmodule,rules_ccwill not be visible inrules_perl's mapping unlessrules_perlalso declares a dependency on it.