Re: m4/autoconf quoting difference in include()

[Roman Neuhauser]

# address@hidden / 2014-07-16 14:33:34 -0400:
> On 2014-07-16 17:17 +0200, Roman Neuhauser wrote:
> > (this is a resend with a proper subject, sorry)
> > 
> > i had some trouble figuring out how to get the include macro inside
> > another (parameterized) macro.
> [...]
> > this fails in configure.ac (autoconf 2.69):
> > 
> >   m4_define([nodot], [[\([_0-9a-zA-Z]+\)]])
> >   m4_define([reversion], [^nodot\.nodot\.nodot$])
> >   m4_define([getver], [regexp($1, reversion, $2)])
> >   m4_define([readver], [getver(m4_include($1), [\&])])
> >   m4_define([ver], readver([VERSION]))
> > 
> > messages:
> > 
> >   aclocal: error: configure.ac:7: file '$1' does not exist
> >   autoreconf: aclocal failed with exit status: 1
> 
> [...] The problem here is aclocal (part of Automake) which basically
> works by grepping a bunch of input files for magic strings (such as
> m4_include).
> 
> Unfortunately, as you have just discovered, this method comes with some
> severe limitations.  I don't think the operation of aclocal is really
> discussed in the Automake manual.  This is regrettable because it's
> easy to run into these problems by accident.

wow, that's a really broken behavior...

oh and thank you for the reply, much appreciated!

-- 
roman