The files are installed by libtoolize:
libtoolize: copying file `m4/libtool.m4'
libtoolize: copying file `m4/ltoptions.m4'
libtoolize: copying file `m4/ltsugar.m4'
libtoolize: copying file `m4/ltversion.m4'
libtoolize: copying file `m4/lt~obsolete.m4'
No need to keep them into the repository.
Change-Id: Ic24d51f7e7680161ac8c780f34e76bc21435b3c1
Signed-off-by: Vincent JARDIN <vincent.jardin@6wind.com>