katragadda

Getting exception installing specjour gem in Redhat 5.5 linux

Installing dnssd (1.3.4) with native extensions /usr/local/lib/ruby/1.9.1/rubygems/installer.rb:483:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

/usr/local/bin/ruby extconf.rb
checking for dns_sd.h... no
unable to find dnssd header
*** 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