How to upgarde msys-autotools-20100113-bin.tar.gz ? 1) install MinGW 5.1.6 (or MinGW 5.1.4) 2) install MSYS-1.0.10 (still required) 3) install msysDTK-1.0.1 4) install MSYS-1.0.11 (consider this as upgrade of MSYS-1.0.10, not a replacement) 4.a) check installation: > m4 --version make sure you have m4 1.4.7 5) upgarde GNU autotools under MSYS shell > cd / > tar xvfz msys-autotools-20100113-bin.tar.gz (extract msys-autotools-20100113-bin.tar.gz into /mingw/*) 5.a) check installation > autoconf --version make sure you have autoconf 2.63 > automake --version make sure you have automake 1.10.1 > libtool --version make sure you have libtool 2.2.6b if you still got old version, make sure PATH have "/mingw/bin" before "/bin" because old version are installed under "/bin" and our new version are installed under "/mingw/bin". NOTE: compare to msys-autotools-20091028-bin.tar.gz, both autoconf and automake are downgraded to match the version used in SLES/SLED 11.