• Create RPMBUILD directory structure : http://wiki.centos.org/HowTos/SetupRpmBuildEnvironment

   mkdir -p ~/rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
  

• Download the current release http://code.google.com/p/logwarn/downloads/detail?name=logwarn-1.0.10.tar.gz&can=2&q=

   wget -O ~/rpmbuild/SOURCES/logwarn-1.0.10.tar.gz http://logwarn.googlecode.com/files/logwarn-1.0.10.tar.gz
  

• Extract the contents of the download

   cd /tmp && tar -vzxf ~/rpmbuild/SOURCES/logwarn-1.0.10.tar.gz 
  

• Build logwarn to create the SPEC file

   cd logwarn-1.0.10 && ./configure && make
  

• Build the rpm

   rpmbuild -ba logwarn.spec
  

• You now have rpms and srpms to use

   find ~/rpmbuild/RPMS
   find ~/rpmbuild/SRPMS