I've installed mingw and msys by using mingw-get-setup.exe. I've also installed Autotools(autoconf, automake,m4,libtool) into C:\/opt/autotools. When I run automake, the following error always occurs: configure.ac:11: error: required file './ltmain.sh' not found If I copy ltmain.sh from libtool’s installed tree, execution will finish normally. How can I configuure automake to find ltmain.sh withou