lower autotools version requirement
lower autotools version requirement

test1943/ShadowVPN,zhufenggood/ShadowVPN,noikiy/ShadowVPN,nsdown/ShadowVPN,nsdown/ShadowVPN,li77leprince/ShadowVPN,xiaguangme/ShadowVPN,AI0day/ShadowVPN,Spacecup/ShadowVPN,Spacecup/ShadowVPN,tdh62/ShadowVPN,qskycolor/ShadowVPN,froggatt/ShadowVPN,tdh62/ShadowVPN,nsdown/ShadowVPN,bjrara/ShadowVPN,qskycolor/ShadowVPN,xiaguangme/ShadowVPN,li77leprince/ShadowVPN,sunclx/ShadowVPN,sunclx/ShadowVPN,noikiy/ShadowVPN,zhufenggood/ShadowVPN,test1943/ShadowVPN,AI0day/ShadowVPN,bjrara/ShadowVPN,froggatt/ShadowVPN