Hi! On 2020-01-26 20:18, Ilmari Lauhakangas wrote: > You could try > --with-jdk-home=/cygdrive/c/Program Files/Java/jdk-13.0.1 In cygwin, I usually use forward-slash paths, which are perfectly-valid cygwin paths, like --with-jdk-home=C:/Program Files/Java/jdk-13.0.1 -- Best regards, Mike Kaganski