The toolchain config is copied from the @bazel_tools
repository, and then modified. The original version is copied here so we can merge in any changes from new versions of Bazel.
unix_cc_toolchain_config.bzl
is the original copy from@bazel_tools
.cc_toolchain_config.bzl
is our fork.
Here is the original file:
bazel-bloodlight/external/bazel_tools/tools/cpp/unix_cc_toolchain_config.bzl