Re: libtool 2.2.6a unnecessary AC_CONFIG_M4_DIR warning?

[Ralf Wildenhues]

Hi Simon,

* Simon Josefsson wrote on Fri, Sep 26, 2008 at 10:35:50AM CEST:
> libtoolize: Consider adding `AC_CONFIG_MACRO_DIR([m4])' to configure.ac and
> libtoolize: rerunning libtoolize, to keep the correct libtool macros in-tree.
> 
> I can't seem to find any difference between using that in configure.ac
> or not, all the same *.m4 files are distributed in m4/.

For 'libtoolize --install', it makes a difference IIRC.

> Note that I have in Makefile.am:
> 
> ACLOCAL_AMFLAGS = -I m4 -I gl/m4 -I lib/gl/m4
> 
> I recall that some tools already assume the first -I<dir> in
> ACLOCAL_AMFLAGS is the place to put more *.m4 files, so can't libtool
> make this assumption too?

aclocal does this.  But we were trying to move away from this rather
arbitrary semantics, esp. as it makes things like this harder:
  env ACLOCAL='aclocal -I ...' autoreconf -vi

> I'm trying to avoid having to maintain redundant configuration
> statements in my packages, so fixing this would help with that.

But in that light it's not really a redundant information.

Hope that helps.

Cheers,
Ralf