Currently, PHP uses aclocal of the automake suite to include
libtool's /usr/share/aclocal/libtool.m4. This is a trivial
task which does not require aclocal per se.
However, extension authors might depend on additional m4
macros such as AM_PATH_GTK_2_0 which are provided by other
libraries. If that is the case, they need aclocal to create
a proper aclocal.m4 file.
If you are an extension author and use a m4 macro of your
favorite package in your extension's config.m4, then please
speak up now. Otherwise, PHP will soon stop using aclocal.
- Sascha
