Improved the instructions on how to build CTA, but I can NOT compile cta.tex

doc/cta.tex

@@ -780,54 +780,167 @@ Create the \texttt{/eos} directory within the EOS namespace, map it to the EOS
 \end{verbatim}
 
 \section{Compile CTA}
-On a blank system, the following packages are needed to compile CTA:
-\begin{verbatim}
-yum install gcc-c++
-yum install cmake
-yum install xrootd-devel
-yum install xrootd-client-devel
-yum install xrootd-server-devel
-yum install  xrootd-private-devel
-yum install sqlite-devel
-yum install protobuf-devel
-yum install gtest-devel
-yum install gmock-devel
-yum install castor-devel
-yum install librados-devel
-yum install rados-devel
-yum install librados2-devel <- this required ceph.repo
-yum install libradosstriper1-devel
-yum install libattr-devel libuuid-devel
-yum install cryptopp-devel
-yum install binutils-devel
-yum install zeromq3-devel
-yum install libcap-devel
-yum install openssl-devel
-yum install castor-lib-client castor-lib-server
-  [this required CASTOR_SLC6.repo (or castor-jenkins.repo)]
-yum install castor-tapegatewayd
-yum install castor-tapegateway-server
-yum install castor-libtapegatewayd
-yum install castor-lib-tape
-
-And also:
-yum install ccache
-
-#cat  /etc/yum.repos.d/ceph.repo
-[ceph]
-name=Ceph repository
-baseurl=file:///afs/cern.ch/project/cndoc/wwwds/HSM/CASTOR/repos/ceph
+Make sure yum is configured to see the repositories required by CTA buildi
+dependencies.  If CTA is to be compiled on SLC6 then only the CTA command-line
+tool will be built and this will only require the following epel repository configuration in order to be able to get the necessary xrootd-client-devel and cryptopp-devel packages:
+\begin{verbatim}
+cat /etc/yum.repos.d/epel.repo
+[epel]
+name=UNSUPPORTED: Extra Packages for Enterprise Linux add-ons, no formal support from CERN
+baseurl=http://linuxsoft.cern.ch/epel/6/$basearch/
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
+gpgcheck=1
 enabled=1
-gpgcheck=0
-priority=10
+protect=0
+
+[epel-debug]
+name=UNSUPPORTED: Extra Packages for Enterprise Linux add-ons, no formal support from CERN - debug RPMs
+baseurl=http://linuxsoft.cern.ch/epel/6/$basearch/debug/
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
+gpgcheck=1
+enabled=0
+protect=0
+
+[epel-source]
+name=UNSUPPORTED: Extra Packages for Enterprise Linux add-ons, no formal support from CERN - source RPMs
+baseurl=http://linuxsoft.cern.ch/epel/6/SRPMS/
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
+gpgcheck=1
+enabled=0
+protect=0
+
+[epel-testing]
+name=UNSUPPORTED: Extra Packages for Enterprise Linux add-ons, no formal support from CERN - testing
+baseurl=http://linuxsoft.cern.ch/epel/testing/6/$basearch/
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
+gpgcheck=1
+enabled=0
+protect=0
+
+[epel-testing-debug]
+name=UNSUPPORTED: Extra Packages for Enterprise Linux add-ons, no formal support from CERN - testing debug RPMs
+baseurl=http://linuxsoft.cern.ch/epel/testing/6/$basearch/debug/
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
+gpgcheck=1
+enabled=0
+protect=0
+
+[epel-testing-source]
+name=UNSUPPORTED: Extra Packages for Enterprise Linux add-ons, no formal support from CERN - testing source RPMs
+baseurl=http://linuxsoft.cern.ch/epel/testing/6/SRPMS/
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
+gpgcheck=1
+enabled=0
+protect=0
+\end{verbatim}
 
-#cat /etc/yum-puppet.repos.d/CASTOR_SLC6.repo
-[CASTOR_SLC6]
-name=CASTOR SLC6 repository
-baseurl=http://linuxsoft.cern.ch/internal/repos/castor6-testing/x86_64/os/
+If CTA is to be built on CC7 then it will require the following repository
+configurations:
+\begin{verbatim}
+cat /etc/yum.repos.d/epel.repo 
+[epel]
+name=Extra Packages for Enterprise Linux 7 - $basearch
+baseurl=http://linuxsoft.cern.ch/epel/7/$basearch
 enabled=1
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
+
+[epel-debuginfo]
+name=Extra Packages for Enterprise Linux 7 - $basearch - Debug
+baseurl=http://linuxsoft.cern.ch/epel/7/$basearch/debug
+enabled=0
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
+gpgcheck=1
+
+[epel-source]
+name=Extra Packages for Enterprise Linux 7 - $basearch - Source
+baseurl=http://linuxsoft.cern.ch/epel/7/SRPMS
+enabled=0
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
+gpgcheck=1
+\end{verbatim}
+
+\begin{verbatim}
+cat /etc/yum.repos.d/ceph-cc7.repo 
+[cc7-ceph]
+name=cc7-ceph
+baseurl=http://linuxsoft.cern.ch/mirror/download.ceph.com/rpm-infernalis/el7/x86_64
 gpgcheck=0
-priority=10
+enabled=1
+protect=0
+priority=4
+\end{verbatim}
+
+In addition you will need to make sure the \texttt{cernonly} repository is enabled:
+\begin{verbatim}
+egrep -A3 '\[cernonly\]' /etc/yum.repos.d/CentOS-CERN.repo 
+[cernonly]
+name=CentOS-$releasever - CERN Only
+baseurl=http://linuxsoft.cern.ch/cern/centos/$releasever/cernonly/$basearch/
+gpgcheck=1
+\end{verbatim}
+
+Install \texttt{cmake} if it is not already installed:
+\begin{verbatim}
+  sudo yum install cmake
+\end{verbatim}
+
+Obtain the URL of the CTA source-code repository by going to the following CERN
+gitlab web page:
+\begin{verbatim}
+https://gitlab.cern.ch/cta/CTA
+\end{verbatim} 
+You should copy the URL from this web page, however at the time this document
+was written, the 3 possible URLS were:
+\begin{verbatim}
+HTTPS: https://gitlab.cern.ch/cta/CTA.git
+KRB5: https://:@gitlab.cern.ch:8443/cta/CTA.git
+SSH: ssh://git@gitlab.cern.ch:7999/cta/CTA.git
+\end{verbatim}
+
+Clone the CTA git repository (this example uses the KRB5 URL):
+\begin{verbatim}
+git clone https://:@gitlab.cern.ch:8443/cta/CTA.git
+\end{verbatim}
+This will create a directory called CTA.
+
+Create a build directory at the same level as the CTA directory, that is to say,
+create a build directory that is not inside of the CTA repostory directory:
+\begin{verbatim}
+mkdir CTA_build
+\end{verbatim}
+
+Enter the build directory and run the following \texttt{cmake} and \texttt{make}
+commands in order to produce the source RPM of the CTA project:
+\begin{verbatim}
+cd CTA_build
+cmake -DPackageOnly:Bool=true ../CTA
+make
+\end{verbatim}
+
+Use \testtt{yum-builddep} to install all of the RPMs that CTA depends on in
+order to be built:
+\begin{verbatim}
+sudo yum-builddep RPM/SRPMS/cta-0-0.src.rpm
+\end{verbatim}
+
+Delete and then re-create the \texttt{CTA_build} directory:
+\begin{verbatim}
+cd ..
+rm -rf CTA_build
+mkdir CTA_build
+\end{verbatim}
+Go into the newly re-created \textt{CTA_build} directory and run \textt{cmake}
+to preapre to make all of the CTA project and not just the source rpm:
+\begin{verbatim}
+cd CTA_build
+cmake ../CTA
+\end{verbatim}
+
+Build CTA by running \texttt{make} twice in the texttt{CTA_build} directory.
+\begin{verbatim}
+make
+make
 \end{verbatim}
 
 \section{Create the mock nameserver base directory}