doc: Document the rust-target platform field.

* doc/guix.texi (platform Reference): Document the rust-target platform
field.

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Efraim Flashner 2023-12-17 14:52:19 +02:00
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@ -45875,6 +45875,11 @@ This optional string field is only relevant if the kernel is Linux. In
that case, it corresponds to the ARCH variable used when building Linux,
@code{"mips"} for instance.
@item @code{rust-target} (default: @code{#false})
This optional string field is used to determine which rust target is best
supported by this platform. For example, the base level system targeted by
@code{armhf-linux} system is closest to @code{armv7-unknown-linux-gnueabihf}.
@item @code{glibc-dynamic-linker}
This field is the name of the GNU C Library dynamic linker for the
corresponding system, as a string. It can be