To build RPMs without being logged in as root, first create a file ~/.rpmmacros along the following lines:

%_topdir        /home/iay/rpm
%packager       Ian Young <ian@iay.org.uk>

Create the build environment inside your user directory as follows:

mkdir -p ~/rpm/{BUILD,RPMS/{i386,i686,noarch},SOURCES,SPECS,SRPMS}

Building from SRPMs is a cycle of using rpmbuild --rebuild in the user directory and then rpm -ivh as root, either in a separate terminal window or using sudo.  My standard SP "smoke test" goes like this:

As root:

• yum install emacs gcc gcc-c++ kernel-devel httpd-devel rpm-build doxygen openssl-devel curl-devel unixODBC-devel chrpath boost-devel stunnel redhat-rpm-config

• on RHEL/CentOS >= 6, Fedora:

  • yum install groff libidn-devel

• on RHEL/CentOS >= 7, Fedora:

  • yum install xerces-c xerces-c-devel

  • Do not install these packages on other distributions; traditionally these have been older versions with security issues, such as V2.7.

• setenforce 0 to take selinux out of the picture

As iay:

• disable screen saver and screen lock

• create private RPM build environment as above

• copy across SRPMs from old machine, or download from latest SRPMs

• rpm -i --nosignature *.src.rpm

• cd ~/rpm/SPECS

• rpmbuild -ba log4shib.spec

• (root installs log4shib and log4shib-devel)

• except on RHEL/CentOS >= 7 or Fedora:

  • rpmbuild -ba xerces-c.spec

  • (root installs xerces-c and xerces-c-devel)

• rpmbuild -ba xml-security-c.spec

• (root installs xml-security-c and xml-security-c-devel)

• on RHEL/CentOS >= 6, Fedora:
  

  • rpmbuild -ba curl-openssl.spec

  • (root installs libcurl-openssl and libcurl-openssl-devel)

• rpmbuild -ba xmltooling.spec

• (root installs libxmltooling, libxmltooling-devel and xmltooling-schemas)

• rpmbuild -ba opensaml.spec

• (root installs opensaml and opensaml-devel)

• rpmbuild -ba shibboleth.spec

• (root installs shibboleth)