Issue #9555 has been updated by Nobuyoshi Nakada. Status changed from Open to Feedback Could you show ext/curses/mkmf.log and ext/curses/extconf.h files? ---------------------------------------- Bug #9555: Ruby 2.0.0 compilation fails to compile on cygwin. (curses.so) https://bugs.ruby-lang.org/issues/9555#change-50948 * Author: Jeroen Verhoeven * Status: Feedback * Priority: Normal * Assignee: * ruby -v: 2.0.0 * Backport: ---------------------------------------- Using RVM we see that ruby fails to compile for 2.0.0. This seems to be fixed in 2.1.0. Compiling the 2.1.0 as follows succeeds: rvm --debug install 2.1.0 --without-tcl --without-tk Trying the same for 2.0.0 fails. With errors logged in the following gist: https://gist.github.com/dajoen/8933735#file-second-attempt-modified-diff-file A history of events can also be seen in https://github.com/wayneeseguin/rvm/issues/2360. -- https://bugs.ruby-lang.org/