I am getting error in cygwin rvm under Window 7 32-bit:
$ rvm install 1.9.3
Error running ‘make ‘, please read /home/User/.rvm/log/ruby-1.9.3-p194/yaml/make.log
/home/User/.rvm/log/ruby-1.9.3-p194/yaml/make.log
make
Error: don’t know how to make ‘/configure.ac’
Now each and every thing working fine. Thanks every body for providing your support.