build failure mac cross-compiling

[Xisco Fauli]

Hello Jan-marek, all,

I use a macbook M1 to create the bisect repositories with this autogen:

--host=x86_64-apple-macos
--build=x86_64-apple-macos
--disable-werror
--disable-odk
--with-package-format=dmg
--disable-online-update

Since 
https://cgit.freedesktop.org/libreoffice/core/commit/?id=4537886ec1de8beed02c7aea34a50727bc058bbd, 
the build fails with

make[2]: Making `all' in `stubdata'

*** ERROR - configure could not detect your platform
*** see the readme.html
*** or, try copying icu/source/config/mh-linux to mh-unknown
***   and editing it.

see complete log here: https://paste.ee/p/5Dz28

OTOH, it works if I remove the --host/--build flags.

Regards

-- 
Xisco Faulí
LibreOffice QA Team
IRC: x1sc0