[gentoo-dev] [PATCH 0/2] cargo.eclass: Change RUSTFLAGS approach following recent build failures

[James Le Cuirot <chewi@gentoo.org>]

Unfortunately, my recent cargo.eclass changes didn't fare so well, despite me
testing it on a good handful of packages. I've had to sharply change tack to
work around Cargo's shortcomings.

The first commit has the main change. I'd like to merge that very soon to put
out the immediate fire.

The second commit tries to address a lingering downside where
project-specific flags may get overridden by our own. This was happening,
even before I changed anything for users or ebuilds setting RUSTFLAGS, but
now it is more likely to happen. I'm unsure of this change because it is a
little controverial, using app-misc/yq's tomlq (a jq wrapper) to read flags
from the project's config files. On the plus side, it should avoid upstreams
complaining that we're not using their flags. See what you think. I've kept
it in a separate commit so that it can easily be backed out.

James Le Cuirot (2):
  cargo.eclass: Change RUSTFLAGS approach following recent build
    failures
  cargo.eclass: Preserve project-specific [build] flags by reading
    config

 eclass/cargo.eclass | 73 ++++++++++++++++++++++++++++-----------------
 1 file changed, 46 insertions(+), 27 deletions(-)

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2.45.2