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From: Zopolis0 <creatorsmithmdt@gmail.com>
Date: Thu, 5 May 2022 19:54:57 +1000
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Subject: How to regenerate configure?
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While attempting to regenerate and modernise the autotools scripts in
libjava, both autoconf and autoreconf have resulted in a broken configure
script filled with errors such as "as_fn_executable_p: command not found".
To my knowledge this is because they are lacking the line (outside of the
config.status section) "as_executable_p=as_fn_executable_p", as can be seen
on line 547 of gotools/configure. But I cannot see anything in gotools/
configure.ac that would seem to generate this line, so I presume it is a
different way of generating configure.