commit 2dadb399c61d8ca2c2fbba5e59168e270c7cffae
Author: Stanislav Brabec <sbrabec@suse.cz>
Date:   Mon Jun 29 15:57:17 2009 +0200

    Don't include non-existing m4 directory.

diff --git a/Makefile.am b/Makefile.am
index 8b90df0..c2d6f8d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,4 @@
 AUTOMAKE_OPTIONS = dist-bzip2
-ACLOCAL_AMFLAGS = -I m4
 DISTCLEANFILES = ChangeLog libusb-1.0.pc
 EXTRA_DIST = TODO PORTING BUGS
 SUBDIRS = libusb doc