unable to install compass
问题 Last week I made an update in cygwin because of the bash "vulnerable problem". After that I couldn't compile sass anymore. I tried to reinstall ruby, after some install fails and reinstalling cygwin I installed it and updated with "gem update --system" it run, but when I tried to install compass I got following message: > /usr/bin/ruby.exe -r ./siteconf20141006-7856-1td7wzb.rb extconf.rb > checking for ffi.h... *** extconf.rb failed *** Could not create > Makefile due to some reason, probably