Update of bug #66438 (group groff):
Summary: configure fails on macOS since
180d665d19fea419235ea173dce8b4f4e8a5cf65 => configure fails on macOS since
180d665d19
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Follow-up Comment #1:
Thanks for the report, Sven.
Your diagnosis is sound.
Yes, the problem is that POSIX specifies _expr_(1) as accepting only BREs
("basic" regular expressions) in the patter operand of the ":" operator.
I used ERE ("extended" regular expression) syntax in that commit.
I also apologize for the botched commit message. I later added a ChangeLog
entry for it.
Unfortunately, the `\{1,\}` solution you propose is *also* not a POSIX BRE.
I've have to respell the pattern using a doubled atom and the * quantifier.
Also, 10 digits of Git hash ought to be enough for anybody. :-P
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