I know there are several related posts, I have tried several solutions.
I have reviewed and tried soulutions from:
Cannot install Puma gem on Ruby on Rails, puma issues 202 on github, puma issues 424 on github, and hicknhack-software/rails-disco/wiki/Installing-puma-on-windows and a few other sources, I cannot post full links because I have no rep.
I am aware of the need to download openssl and reference it in the gem install command. I have downloaded and tried with various versions of openssl, the last one I used is 1040064 openssl-1.0.2a-i386-win32.zip from http://indy.fulgan.com/SSL/
I am running:
version of ruby = ruby 2.0.0p598 (2014-11-13) [i386-mingw32]
version of rails = 4.1.8
Windows 7, 64 bit
Full Error:
Jon@JON-PC /c/with_forked_on_4_8 (master) $ gem install puma -- --with-opt-dir=c:\openssl Temporarily enhancing PATH to include DevKit... Building native extensions with: '--with-opt-dir=c:openssl' This could take a while... ERROR: Error installing puma: ERROR: Failed to build gem native extension. c:/RailsInstaller/Ruby2.0.0/bin/ruby.exe extconf.rb --with-opt-dir=c:openssl checking for BIO_read() in -lcrypto... no checking for BIO_read() in -llibeay32... no *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=c:/RailsInstaller/Ruby2.0.0/bin/ruby --with-puma_http11-dir --without-puma_http11-dir --with-puma_http11-include --without-puma_http11-include=${puma_http11-dir}/include --with-puma_http11-lib --without-puma_http11-lib=${puma_http11-dir}/ --with-cryptolib --without-cryptolib --with-libeay32lib --without-libeay32lib Gem files will remain installed in c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0 .0/gems/puma-2.11.1 for inspection. Results logged to c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/puma-2.11 .1/ext/puma_http11/gem_make.out 
