[sr #110418] Unable to specify build and target perl in cross builds

Update of sr#110418 (group autoconf):

                Priority:       5 - Unprioritized => 7 - Release N (Desirable)

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Follow-up Comment #1:

Perl is required on the build system in order to run
build-aux/help-extract.pl, which *could* be rewritten in e.g. sh+awk but it
would be a pain in the neck.  "Quit using help2man" is on my long-term TODO
list but I cannot make any concrete promises and the most likely replacement
is pod2man (possibly together with gcc's texi2pod), which also requires perl
on the build system.

I'm not aware of any existing convention for how to distinguish host perl from
build perl.  How would you like us to do it?


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