On 06/02/12 05:02, Dave Hart wrote:
> dnl AG_PATH_AUTOOPTS([MIN-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
>
> The [] above are not intended to be correct m4 quoting, but rather
> simply show that all the arguments are optional. Try:
>
> AG_PATH_AUTOOPTS([5.12], [], [AC_MSG_ERROR([Autoopts not found])])
>
> or possibly
>
> AG_PATH_AUTOOPTS([5.12], [], AC_MSG_ERROR([Autoopts not found]))
>
> My hunch is the first one will work, my head thinks the second one
> makes more sense. So much for understanding m4 :)
Yep. Dave understands it correctly. I write syntax with pseudo-BNF
and the autoconf m4 quote characters conflict with that usage.
NOTE: These are autoconf choices, not m4. By default, m4 uses
the accent (backquote or "`" character) and the apostrophe ("'")
as open and close quotes. Anyway, I wrote that probably a decade
ago and, in retrospect, it should be cleaned up. Thank you.
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