wmaker build and AM_PROG_LIBTOOL

[Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn@axis.com>]

I'm now getting regular X freezes. Only thing I can pick up is:

/usr/bin/X11/WindowMaker fatal error: got signal 11 (Segmentation fault)

from ~/.xsession-errors.

Trying to rebuild an unstripped wmaker from source, but automake makes
my life miserable:

aclocal
aclocal: configure.in: 15: macro `AM_PROG_LIBTOOL' not found in library
make: *** [aclocal.m4] Error 1

Can anybody point me in the right direction?
It says: "not found in library". What library is the right library?

Cheers,
Cristian