Improved instructions on how to build CTA

doc/cta.tex

@@ -780,9 +780,10 @@ Create the \texttt{/eos} directory within the EOS namespace, map it to the EOS
 \end{verbatim}
 
 \section{Compile CTA}
-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:
+Make sure \texttt{yum} is configured to see the repositories that will provide
+the packages required to build CTA.  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:
 \begin{verbatim}
 cat /etc/yum.repos.d/epel.repo
 [epel]
@@ -834,8 +835,8 @@ enabled=0
 protect=0
 \end{verbatim}
 
-If CTA is to be built on CC7 then it will require the following repository
-configurations:
+If CTA is to be built on CC7 then it will require the following \texttt{epel}
+and \texttt{ceph} repository configurations:
 \begin{verbatim}
 cat /etc/yum.repos.d/epel.repo 
 [epel]
@@ -891,21 +892,21 @@ gitlab web page:
 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:
+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):
+Clone the \texttt{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.
+This will create a directory called \texttt{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:
+Create a build directory at the same level as the \texttt{CTA} directory or
+anywhere accept inside of the \texttt{CTA} directory:
 \begin{verbatim}
 mkdir CTA_build
 \end{verbatim}
@@ -915,11 +916,11 @@ commands in order to produce the source RPM of the CTA project:
 \begin{verbatim}
 cd CTA_build
 cmake -DPackageOnly:Bool=true ../CTA
-make
+make cta_srpm
 \end{verbatim}
 
-Use \texttt{yum-builddep} to install all of the RPMs that CTA depends on in
-order to be built:
+Use \texttt{yum-builddep} to install all of the packages required to build the
+rest of CTA:
 \begin{verbatim}
 sudo yum-builddep RPM/SRPMS/cta-0-0.src.rpm
 \end{verbatim}
@@ -931,13 +932,13 @@ rm -rf CTA_build
 mkdir CTA_build
 \end{verbatim}
 Go into the newly re-created \texttt{CTA\_build} directory and run \texttt{cmake}
-to preapre to make all of the CTA project and not just the source rpm:
+to prepare 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.
+Build CTA by running \texttt{make} twice in the \texttt{CTA\_build} directory.
 \begin{verbatim}
 make
 make