| : 2.14.1 doesn't exist!
| 
| It did for a short time.  I assume you use the autoconf CVS repository.

Yep, sorry, I should have said no longer exists.

| : ifelse([$3], [],
| :        [$3], [yes],
| :        [$3], [no],
| :        [AC_FATAL([$0: invalid attribute `$3'])])dnl
| 
| I'm reading up on m4 now.  I thought ifelse needed touples of 3 and 3 args to
| be used as a switch-case...

You are right, sorry:

| : ifelse([$3], [],    [],
| :        [$3], [yes], [],
| :        [$3], [no],  [],
| :        [AC_FATAL([$0: invalid attribute `$3'])])dnl

Akim

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