C:/Users/usa/ruby/lib/mkmf.rb:282:in initialize': Permission denied - mkmftmp1.log (Errno::EACCES) from C:/Users/usa/ruby/lib/mkmf.rb:282:in open'
from C:/Users/usa/ruby/lib/mkmf.rb:282:in ensure in block in postpone' from C:/Users/usa/ruby/lib/mkmf.rb:285:in block in postpone'
from C:/Users/usa/ruby/lib/mkmf.rb:253:in open' from C:/Users/usa/ruby/lib/mkmf.rb:275:in postpone'
from C:/Users/usa/ruby/lib/mkmf.rb:763:in checking_for' from C:/Users/usa/ruby/lib/mkmf.rb:867:in have_func'
from C:/Users/usa/ruby/ext/socket/extconf.rb:348:in <top (required)>' from ../mytree/ext/extmk.rb:156:in load'
from ../mytree/ext/extmk.rb:156:in extmake' from ../mytree/ext/extmk.rb:443:in block in '
from ../mytree/ext/extmk.rb:439:in each' from ../mytree/ext/extmk.rb:439:in '
=end