ruby 1.8.6 (2009-08-04 patchlevel 383) [i386-mingw32] >gem i hpricot Building native extensions. This could take a while... ERROR: Error installing hpricot: ERROR: Failed to build gem native extension.
C:/Ruby/bin/ruby.exe extconf.rb checking for stdio.h... 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.