Hi Paul,

Paul Eggert <eggert@cs.ucla.edu> writes:

> Yes, that should work, so long as the build host isn't a Microsoft
> Windows platform that would require $(BUILD_EXEEXT). And that should
> be good enough; we don't need the full power of AX_PROG_CC_FOR_BUILD
> from the Autoconf Archive.

Here is a patch that worked in an x86 docker container with an arm64
cross compiler.

Can we just assume that crc will always be used and depend on
build-cc.m4? I guess the more robust way to do things is to do the
following in bootstrap.conf:

    bootstrap_post_import_hook ()
    {
      $gnulib_tool --copy-file m4/build-cc.m4
    }

Like we do for tests/init.sh.

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