best aclocal include practice wanted

[Thomas Porschberg]

Hi,

what is the recommended way to include project-written m4 macros ?

I include the macros in <project-root>/config/m4
and call in autogen.sh "aclocal -I config/m4"

The config directory itself is configured in configure.ac
with AC_CONFIG_AUX_DIR(config).

Is there something wrong with this approach ?
What could be done better ?
How should autoreconf find the m4-macros in such a case ?

Cheers,
Thomas