tar -xjf m4-1.4.16.tar.bz2
cd m4-1.4.16
sed -i -e '/gets is a/d' lib/stdio.in.h
./configure --prefix=/usr
make
sed -i -e '41s/ENOENT/& || errno == EINVAL/' tests/test-readlink.h
make check
make install
cd ..
rm -fr m4-1.4.16