Re: [PATCH] rust: build correctly without GNU sed

> From e509b5b8be (rust: support for Windows, 2025-10-15), we check
> cargo's information to decide which library to build. However, that
> check mistakenly used "sed -s" ("consider files as separate rather than
> as a single, continuous long stream"), which is a GNU extension. The
> build thus fails on macOS with "meson -Drust=enabled", which comes with
> BSD-derived sed.
>
> Instead, use the intended "sed -n" and print the matching section of the
> output. This failure mode likely went unnoticed on systems with GNU sed
> (common for developer machines and CI) because, in those instances, the
> output being matched by case is the full cargo output (which either
> contains the string "-windows-" or doesn't).
>
> Helped-by: Eric Sunshine <sunshine@sunshineco.com>
> Helped-by: Patrick Steinhardt <ps@pks.im>
> Signed-off-by: D. Ben Knoble <ben.knoble+github@gmail.com>
> ---
> diff --git a/src/cargo-meson.sh b/src/cargo-meson.sh
> @@ -26,7 +26,7 @@
> -case "$(cargo -vV | sed -s 's/^host: \(.*\)$/\1/')" in
> +case "$(cargo -vV | sed -n 's/^host: \(.*\)$/\1/p')" in
>         *-windows-*)
>                 LIBNAME=gitcore.lib;;