autogen.sh: use automake 1.9 unless otherwise specified

darcs-hash:20080117144848-88462-77401d48391cada93c8066a1295cb8e36e60476b.gz

autogen.sh

 #!/bin/sh 
 
 set -x
+AUTOMAKE=${AUTOMAKE:-automake-1.9} ACLOCAL=${ACLOCAL:-aclocal-1.9}
+export AUTOMAKE ACLOCAL
 ${AUTORECONF:-autoreconf} -i
 find . \( -name 'run*' -o -name '*.sh' \) -a -type f | xargs chmod +x
 chmod +x scripts/*