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<a href="https://gitlab.com/rossburton">Ross Burton</a> created an issue:
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<p dir="auto">libopts.m4 looks for a POSIX shell but iterates through a hardcoded list of shells, there's no way to override this. In a cross-compilation environment the build host shell may not be the same as the target, so there needs to be a way to directly specify the shell to use.</p>
<p dir="auto">gnulib has something that looks useful: <a href="https://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob_plain;f=m4/posix-shell.m4" rel="nofollow noreferrer noopener" target="_blank">https://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob_plain;f=m4/posix-shell.m4</a></p>
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