| I'm trying to upgrade to CVS autoconf, and I'm wondering if I need
| to upgrade automake, libtool, and m4 at the same time?
| 
| The testsuite failed for instance like this:
| 
| | 3. ./torture.m4:148     --- empty       Thu Jul  6 14:26:47 2000
| | +++ stderr      Thu Jul  6 14:27:00 2000
| | @@ -0,0 +1,3 @@
| | +NONE:0: /usr/bin/m4: `m4_symbols' from frozen file not found in builtin table!
| | +NONE:0: /usr/bin/m4: `syncoutput' from frozen file not found in builtin table!
| | +NONE:0: /usr/bin/m4: `changesyntax' from frozen file not found in builtin table!
| | FAILED near `torture.m4:187'
| [...]

Wow, m4 is much more robust than what I would have bet :)

| I believe changesyntax is new for m4 1.4o or something - are there any
| other requirements for CVS autoconf projects?

My bet is that you compiled the m4f files with a 1.4+ and used it with
<= 1.4.

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