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-rw-r--r--doc/guix.texi9
1 files changed, 8 insertions, 1 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index a12210db8a..005c0597ad 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -5855,9 +5855,16 @@ information on cross-compilation.
An example use of this is on Linux-based systems, which can emulate
different personalities. For instance, passing
-@code{--system=i686-linux} on an @code{x86_64-linux} system allows you
+@code{--system=i686-linux} on an @code{x86_64-linux} system or
+@code{--system=armhf-linux} on an @code{aarch64-linux} system allows you
to build packages in a complete 32-bit environment.
+@quotation Note
+Building for an @code{armhf-linux} system is unconditionally enabled on
+@code{aarch64-linux} machines, although certain aarch64 chipsets do not
+allow for this functionality, notably the ThunderX.
+@end quotation
+
Similarly, when transparent emulation with QEMU and @code{binfmt_misc}
is enabled (@pxref{Virtualization Services,
@code{qemu-binfmt-service-type}}), you can build for any system for