====== Build your own local development environment ======

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**Contents**

   * Introduction
   * Seeting up the local area
   * Build gcc and from source
   * Installing RPM packages in the local area
   * ....
   


//[[http://openwall.info/wiki/internal/gcc-local-build]]//


===== Introduction =====

create your own, additional, RPM database and **install software in your local space**.

make a full environment for programming in a home folder

build your own quasi-filesystem under ''~/local''

No root privileges, g might not be installed!

run the ''configure'' script with the ''--prefix'' option

Install a rpm in home directory as non-root

===== Setting up the environment =====



<code>
mkdir ~/local
</code>

create a ''/usr/local/''-like hierarchy
E poi la si prepara con una struttura analoga a quella di ''/usr/local'',

<code>
cd ~/local
mkdir bin etc include lib lib64 libexex sbin share src tmp
</code>


La directory ''~/local'' diventa equivalente locale della system directory ''/usr''
che contiene tutto quello che e' usato da uno standard user



Oppure posso usare direttamente la dot directory ''~/.local'' and ''~/.local/share'' nella home
where locally installed program data are stored


See also

//[[http://www.ubooboo.net/zimPage.php?page=Local_Install]]//    \\
//[[http://blog.sanctum.geek.nz/compiling-in-home/]]//



<code>
setenv PREFIX   $HOME/local
setenv EPREFIX  $PREFIX
</code>


''LD_LIBRARY_PATH'' deve adesso includere anche ''$HOME/local/lib'' and ''$HOME/local/lib64'' 


<code>
setenv PATH                    $PREFIX/bin:$PATH
setenv LD_LIBRARY_PATH         $HOME/lib:$HOME/local/lib64:$LD_LIBRARY_PATH
</code>


<code>
#setenv C_INCLUDE_PATH          $PREFIX/include
#setenv CPLUS_INCLUDE_PATH      $PREFIX/include
#setenv MANPATH                 $PREFIX/share/man:$PREFIX/man:$MANPATH
#setenv CFLAGS                  "-I$PREFIX/include"
#setenv LDFLAGS                 "-L$PREFIX/lib"
</code>





===== Installing RPM packages in the local area =====

How to install RPM packages without root privileges or ''sudo''.


See also 

//[[http://warrickball.blogspot.it/2011/03/installing-rpm-software-without-admin.html]]// \\
//[[http://ajaya.name/?p=6353]]//


Setup a private RPM database
Create a local database, make the folder that will store your database

<code>
cd $HOME/local
mkdir -p $HOME/local/var/lib/rpm
</code>

/var/lib/rpm/ is a usual location for the RPM database

Poi inizializzo il database locale,

<code>
rpm --initdb --root $HOME/local --dbpath $HOME/local/var/lib/rpm
</code>

e copio in esso il contenuto di ''/var/lib/rpm'' cosi' RPM sa quali pacchetti sono
gia' stati installati, 

<code>
cp /var/lib/rpm/*  $HOME/local/var/lib/rpm/
</code>

Poi devo vedere se e rilocabile, 

<code>
rpm -qip package.rpm
</code>

e se ha dipendenze non soddisfatte,

<code>
rpm -ivh package.rpm
</code>

che non lo installa pero' mi dice se i file estratti finiscono tutti a partire da /usr/xxx

Se tutti partono da /usr posso rilocare il pacchetto dicendo di usare ~/local come /usr

<code>
--relocate /usr=$HOME/local
</code>

<code>
rpm --dbpath $HOME/local/var/lib/rpm --relocate /usr=$HOME/local --nodeps -ivh package.rpm
</code>


\\
\\

More details about the usage of ''rpm'' can be found at \\

//[[http://www.nordugrid.org/documents/rpm_for_everybody.html]]//



===== Compiling and installing software from source =====

use the ''--prefix'' switch of the ''configure'' script, 


<code>
./configure --prefix=$HOME/local [other options]
make 
make install
</code>



<code>
./configure --prefix=$HOME/local [other options] && make && make install
</code>

===== Build the latest version of gcc and g++ from source =====

See also

[[http://stackoverflow.com/questions/9316118/installing-gcc-as-non-root]]


In modo da arrivare ad avere

<code>
/users/<username>/local/bin/gcc
</code>

or \\ 

<code>
/users/<username>/local/bin/g++
</code>



Prerequisites:

Bison, 

<code>
cd ~/local/src
wget http://ftp.gnu.org/gnu/bison/bison-2.7.tar.gz
tar -xzf bison-2.7.tar.gz
./configure --help
./configure --prefix=$HOME/local && make && make install
</code>


Ok...



Read [[http://gcc.gnu.org/install/]]


//[[http://openwall.info/wiki/internal/gcc-local-build]]//

Premessa... per compilare gcc serve gia avere un gcc! 

gcc compiler should be already installed, 

<code>
which gcc
/usr/bin/gcc
</code>

but not ''<nowiki>g++</nowiki>''


<code>
which g++
g++: Command not found.
</code>

<code>
gcc -v | grep version
</code>

Ok

You need both the  packages, ''gcc-core'' and ''gcc-g++''

Dowload the source code from one ftp mirror, //[[http://gcc.gnu.org/mirrors.html]]//

As an example

Packages: ''gcc-core-4.x.y.tar.gz'', ''gcc-g++.4.x.y.tar.gz''

<code>
cd ~/local/src
wget http://gcc-uk.internet.bs/releases/gcc-4.1.2/gcc-core-4.x.y.tar.gz
wget http://gcc-uk.internet.bs/releases/gcc-4.1.2/gcc-g++-4.x.y.tar.gz
tar -xvzf gcc-core-4.x.y.tar.gz
tar -xvzf gcc-g++-4.x.y.tar.gz
</code>


Importante! Buildare tutto in una cartella diversa da quella dei sorgenti! 

<code>
mkdir build
cd build
./../src/configure --prefix=$HOME/.local --enable-languages='c c++'
</code>

compile your own version of ''gcc'' and ''<nowiki>g++</nowiki>''




===== Install ROOT =====

Connect via FTP to root.cern.ch

<code>
cd ~/.local/opt
wget ftp://root.cern.ch/root/root_v5.32.04.source.tar.gz
tar -xzf root_v5.32.04.source.tar.gz
cd root
./configure --help
./configure [arch] [options]
make 
make install
</code>










===== AdobeReader =====

Go [[vlsi:workbook:computing:local:acroread|here]]

See also 

//[[http://www.iram.fr/~roche/linux/softwares/LocalInstallation.html]]//

<code>
tar -xzf package.tar.gz
cd 
./INSTALL
Enter installation directory <$HOME/.local>
</code>






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Last update: [[pacher@NOSPAMto.infn.it|Luca Pacher]] - July 31, 2013

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