AC_ARG_{WITH|ENABLE} & AS_HELP_STRING vs. quoting

[Oswald Buddenhagen]

hoi,

just spent two hours getting my help strings in line. :}
the result are two patches to autoconf:

m4sh.m4.diff adds quoting to make help strings with brackets line up
nicely. i have no idea whether my bracket orgy is really correct, but it
seems to format these correctly:
AS_HELP_STRING([--with-foo=PATH], [where to look for foo])
AS_HELP_STRING([--with-foo=[PATH]], [where to look for foo [detect]])
AS_HELP_STRING([--with-foo=[[PATH]]], [where to look for foo [[detect]]])
AS_HELP_STRING([--with-foo-excessively-long=PATH], [where to look for foo])
AS_HELP_STRING([--with-foo-excessively-long=[PATH]], [where to look for foo])

general.m4.diff adds quoting to make the statement "Please note that the
call to `AS_HELP_STRING' is *unquoted*." from the AS_HELP_STRING docu an
actually good example:
AC_ARG_WITH(foo, AS_HELP_STRING([--with-foo[=PATH]], [build with foo]))
now actually works, just like
AC_ARG_WITH(foo, [  --with-foo[=PATH] [...] build with foo])
but otoh, maybe this is intended and i'm only too easy to misguide.

greetings

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m4sh.m4.diff
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general.m4.diff
Description: Text document