Need libtool support

[JohannesLorenz]

This is not a bug of CALF (I think), but probably of my Manjaro Linux (or of me being too stupid).

Using

aclocal -I .
./configure
make

I get during make:

libtool: Version mismatch error.  This is libtool 2.4.6, but the
libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce.
libtool: You should recreate aclocal.m4 with macros from libtool 2.4.6
libtool: and run autoconf again.

Can anyone please help me fix this?