[u/mrichter/AliRoot.git] / html / installation.html

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<TD><img src="picts/MadHatter.gif" alt="ALICE Off-line Project Logo">
<TD><img src="picts/installation_name.gif" alt="Installation">
<TD><img src="picts/AliceLogo.gif" alt="ALICE Logo">
</TR>
</TABLE>

<H2><A NAME="#Content">Content</A></H2>
<UL>
<LI><A HREF="#Prequisites">Prerequisites</A>
<LI><A HREF="#Installation">Installation</A>
<LI><A HREF="#Code">Code development and user environment</A>
</UL>

<HR>

<h2><A HREF="#Content" NAME="Prerequisites">Prerequisites</A></h2>

<h3>Environment</h3>

<p> The code is actively maintained on Linux and HP (both CC and aCC
compilers). It also runs on Compaq OSF1 and SunOS. We welcome feedback from
the installation on other systems and we will be happy to consider 
modifications and corrections necessary to make the installation possible.

<p> The disk space required for a full installation of AliRoot is 200MB for
the system itself and 60MB for the ROOT system.

<h3>gmake</h3>

<p> The installation is performed via the <kbd>
<a href="http://www.gnu.ai.mit.edu/manual/make-3.77/make.html">
gmake</a></kbd> program. <kbd>gmake</kbd> is the 
<a href="http://www.gnu.ai.mit.edu">GNU</a> version of make, it is free and,
if missing on your machine, it can be loaded from the GNU Internet site 
<a href="ftp://ftp.gnu.ai.mit.edu/pub/gnu/make">
ftp://ftp.gnu.ai.mit.edu/pub/gnu/make</a>. <kbd>gmake</kbd> is compatible
with the standard UNIX <kbd>make</kbd> and on the CERN ion WGS
<kbd>make</kbd> is aliased to <kbd>gmake</kbd>. The only files you need for 
<kbd>gmake</kbd> are the executable <kbd>gmake</kbd>
and the script <kbd>autoconf</kbd>, therefore you can copy such files from
any site in a directory in your path.

<h3>ROOT</h3>

<p> <em>ROOT</em> is available for many platforms, therefore in most cases
no <em>ROOT</em> installation is required. To install ROOT on your machine,
connect to the <a href="http://root.cern.ch">web site</a> and follow the
link <em>downloads</em>. Usually you should get the latest release, unless
announced differently by the news of the Off-line Project.

<p> All you need to do is download the compressed tar file, that usually is
called <var>root_v...tar.gz</var>uncompress and untar it (we supposed you
downloaded the tar file in your <var>$HOME</var>):

<p><kbd>
$ gunzip root_v...tar.gz
<br>$ cd <i>directory</i> # name of the directory where you want ROOT to sit
<br>$ tar xvf ~/root_v...tar
</kbd>

<p> When tar ends, you will have the full root directory tree, with already
installed libraries for your platform. 

<p> The following shell variables should be defined in the login scripts:

<p><table align=centre borders=no>
<tr><th align=left>variable</th><th align=left>value</th></tr>
<tr><td width=50%>ROOTSYS	       </td><td> <i>directory</i>/root
<tr><td colspan=2><i><center>on all systems but HP-UX</center></i></td></tr>
<tr><td>LD_LIBRARY_PATH</td>
<td>$LD_LIBRARY_PATH\:$ROOTSYS/lib</td></tr>
<tr><td colspan=2><i><center>on HP-UX</center></i></td></tr>
<tr><td>SHLIB_PATH</td>
<td>$SHLIB_PATH\:$ROOTSYS/lib</td></tr>
<tr><td>PATH</td>
<td> $PATH\:$ROOTSYS/bin </td></tr>
</table>


<h2><A HREF="#Content" NAME="Installation">Installation</A></h2>

<ol> 
<p><li> Install <a href="http://root.cern.ch">ROOT</a> and define the
necessary variables correctly.

<p><li> Decide where the code will reside (from here on <i>directory</i>).

<p><li>Define the following global variables in the login script

<p><table align=centre borders=no>
<tr><th align=left>variable</th><th align=left>value</th></tr>
<tr><td width=30%>ALICE	       </td><td> <i>directory</i>
<tr><td>ALICE_LEVEL		</td><td> pro </td></tr>
<tr><td>ALICE_ROOT		</td><td> $ALICE/$ALICE_LEVEL </td></tr>
<tr><td>ALICE_TARGET		</td><td> `uname` 
(i.e. result of the Unix <b>uname</b> command)</td></tr>
<tr><td colspan=2><i><center>on all systems but HP-UX</center></i></td></tr>
<tr><td>LD_LIBRARY_PATH</td>
<td>$ALICE_ROOT/lib/tgt_${ALICE_TARGET}\:$LD_LIBRARY_PATH</td></tr>
<tr><td colspan=2><i><center>on HP-UX</center></i></td></tr>
<tr><td>SHLIB_PATH</td>
<td>$ALICE_ROOT/lib/tgt_${ALICE_TARGET}\:$SHLIB_PATH</td></tr>
<tr><td>PATH</td>
<td> $PATH\:$ALICE_ROOT/bin/tgt_${ALICE_TARGET} </td></tr>
</table>

<p>At this point you should logout, login again and check that the symbols
are set correctly.

<p><li> Retrieve the AliRoot code. There are two ways to do this: the
    preferred way is retrieving a tar file on the ftp server and the
    slow and network consuming way is checking out the whole cvs tree.
    
<ul> 
<p><li> <em>From a tar file</em>. This is the preferred way. Tar files
    for the different releases including an up-to-date file remade
    every night are available on the ftp server
    <a href="ftp://alisoft.cern.ch/pub/offline">
    ftp://alisoft.cern.ch/pub/offline</a>. The tar files include the
    "CVS" subdirectories for the anonymous cvs user (login "cvs"). So after
    getting the full tar file, it is possible to incrementally update
    the code using cvs.

    <p> The tar file(s) can to be unpacked into the $ALICE directory
    via the command: 
    
    <p><pre>$ gtar xvfz V3.XX.tar.gz</pre>
    
    <p> A script <a href="ftp://alisoft.cern.ch/pub/misc/">changeCVSRoot</a>
    is available to convert a CVS tree under user "cvs" to another
    user. For example, <pre> ChangeRoot tpc </pre>
    

<p><li> <em>From cvs remote cvs server</em>.  The setup of the access
    to the remote cvs server is described in the Code Development
    section. The code is dowloaded via the command:

<p><pre>
$ cd $ALICE
$ cvsa co -r Release-3-02 -d pro AliRoot
</pre>

<p>Where the meaning of <kbd>cvsa</kbd> is explained in the 
<a href="../development.html">code development</a> section.

</ul>

<p><li>install the CERN library part

<p><pre>
$ cd $ALICE_ROOT
$ gmake cernlibs
</pre>

<p><li>Install the ALICE specific software

<p><pre>
$ cd $ALICE_ROOT
$ gmake
</pre>

<p><li>Copy the file $ALICE_ROOT/.rootrc to your home directory

<p><li>For users with c-like shells, update your search path:

<p>
<pre>
$ rehash
</pre>

<p>This usually has to be done only once, after having defined the new PATH.

<p><li>Change to your home directory and run the code

<p>
<pre>
$ cd
$ aliroot

<output from aliroot>

root [1] .x menu.C
</pre>
</ol>

<h2><A HREF="#Content" NAME="Code">Code development and user environment</A></h2>

<p>If the ALICE environment is set up correctly, the
<var>$ALICE_ROOT/lib/tgt_$ALICE_TARGET</var> directory is in the shared
libraries load path, and the <var>$ALICE_ROOT/bin/tgt_$ALICE_TARGET</var>
directory is in the PATH variable. This means that the command
<kbd>aliroot</kbd> will in fact correspond to the file
<var>$ALICE_ROOT/bin/tgt_$ALICE_TARGET/aliroot</var>.

<p>This is convenient for the normal user, but as soon as the user wants to
modify one or more directories, this arrangement becomes inefficient
because if a local copy of one of the shared libraries is remade, the
linker will always find the official unmodified one that sits in the above
directory before the local one in the load library path. Moreover, and
unless the full path is specified, the local version of the <b>aliroot</b>
executable will be ignored and the official version executed.

<p>Therefore in order to develop one or more packages locally
(let's say the TPC) and make modifications, the following steps should be
performed. We suppose here that the remote cvs server has been setup correctly
as explained in the <a href="../development.html">code development</a> section.

<p><table id="wide" cellspacing=10%>
 <tr align=center>
  <th colspan=2>
    <hr><br>
    <font size=+1>Preparation of the environment</font>
    <br><hr>
 <tr align=left>
  <th width=30%>$ mkdir AliRoot
  <td width=50%>create the working directory
 <tr align=left>
  <th>$ cd AliRoot
  <td>set default to it
 <tr align=left>
  <th>$ mkdir pro
  <td>create pro subdirectory
 <tr align=left>
  <th>$ cd pro
  <td>set default to it
 <tr align=left>
  <th>$ ln -s $ALICE_ROOT/* ./
  <td>link all files here
 <tr align=left>
  <th>$ rm lib 
  <td>remove link for library, we need a local file here to containing the new
      TPC library
 <tr align=left>
  <th>$ rm bin
  <td>remove bin, we need a local copy of the <var>aliroot</var>
      executable
 <tr align=left>
  <th>$ mkdir bin
  <td>make a local bin directory 
 <tr align=left>
  <th>$ rm CVS
  <td>remove the link to the CVS directory, we need a local one
      to check-out files
 <tr align=left>
  <th>$ rm TPC
  <td>remove link for TPC subdirectory, we need the real files here
 <tr align=left>
  <th>$ rm ALIROOT
  <td>remove link to ALIROOT subdirectory, may be this is not really necessary
      on all systems, but we do it just to be on the safe side
 <tr align=left>
  <th>$ cvsa co -r Release-3-02 TPC
  <td>get from the cvs server the release version of the TPC files to be
      modified
 <tr align=left>
  <th>$ cvsa co -r Release-3-02 ALIROOT
  <td>get from the server the release version of the ALIROOT files to recreate
      the executable
 <tr align=left>
  <th>$ mkdir -p lib/tgt_$ALICE_TARGET
  <td>create library directory
 <tr align=left>
  <th>$ cd lib/tgt_$ALICE_TARGET
  <td>set default to the lib directory
 <tr align=left>
  <th>$ ln -s $ALICE_ROOT/lib/tgt_$ALICE_TARGET/* ./
  <td>link all libraries here
 <tr align=left>
  <th>$ rm libTPC.sl (on HP)
  <br>$ rm libTPC.so (on the other systems)
  <td>remove link to TPC library, we need a real one
 <tr align=left>
  <th>$ changeRoot $HOME/AliRoot
  <td>change the AliRoot root to $HOME/AliRoot via the <em>changeRoot</em> command
 <tr align=left>
  <th>$ rehash
  <td>make sure that the new PATH is taken into account by the shell
 <tr align=center>
  <th colspan=2>
    <hr><br>
    <font size=+1>Normal development cycle</font>
    <br><hr>
 <tr align=left>
  <th>$ cd $ALICE_ROOT/TPC
  <td>(1) set default to TPC directory
 <tr align=left>
  <th>$ make macroclean
  <td>clean up all objects
 <tr align=left>
  <th>$ emacs AliTPCv1.cxx
  <td>(2) edit all the files...
 <tr align=left>
  <th>$ make
  <td>(3) recreate ../lib/libTPC.sl
 <tr align=left>
  <th>$ cd ../ALIROOT
  <td>set default to ALIROOT directory
 <tr align=left>
  <th>$ make macroclean
  <td>clean up object files
 <tr align=left>
  <th>$ make
  <td>make new executable
 <tr align=left>
  <th>$ cd <em>directory</em>
  <td>(4) set default elsewhere
 <tr align=left>
  <th>$ aliroot
  <td>(5) run aliroot
 <tr align=center>
  <th colspan=2>
    <hr>
</table>

<p>Steps 1-5 are the normal development cycle after the first pass through the 
procedure.

<hr>
<address>
          <script language="JavaScript">
             document.write("Last modified "+ document.lastModified)
             // end of script -->
          </script>
by <a href="mailto:Federico.Carminati@cern.ch">Federico Carminati</a>
</address>
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	4	<HEAD>
	5	<TITLE>Installation</TITLE>
5023a744	6
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14c31136	30
5023a744	31	<BODY>
14c31136	32	<TABLE>
	33	<TR>
	34	<TD><img src="picts/MadHatter.gif" alt="ALICE Off-line Project Logo">
87ad6e14	35	<TD><img src="picts/installation_name.gif" alt="Installation">
14c31136	36	<TD><img src="picts/AliceLogo.gif" alt="ALICE Logo">
	37	</TR>
	38	</TABLE>
	39
4c505702	40	<H2><A NAME="#Content">Content</A></H2>
4c505702	41	<UL>
b813c727	42	<LI><A HREF="#Prequisites">Prerequisites</A>
4c505702	43	<LI><A HREF="#Installation">Installation</A>
	44	<LI><A HREF="#Code">Code development and user environment</A>
	45	</UL>
	46
	47	<HR>
	48
b813c727	49	<h2><A HREF="#Content" NAME="Prerequisites">Prerequisites</A></h2>
	50
	51	<h3>Environment</h3>
	52
	53	<p> The code is actively maintained on Linux and HP (both CC and aCC
	54	compilers). It also runs on Compaq OSF1 and SunOS. We welcome feedback from
	55	the installation on other systems and we will be happy to consider
	56	modifications and corrections necessary to make the installation possible.
	57
	58	<p> The disk space required for a full installation of AliRoot is 200MB for
	59	the system itself and 60MB for the ROOT system.
	60
	61	<h3>gmake</h3>
	62
	63	<p> The installation is performed via the <kbd>
	64	<a href="http://www.gnu.ai.mit.edu/manual/make-3.77/make.html">
	65	gmake</a></kbd> program. <kbd>gmake</kbd> is the
	66	<a href="http://www.gnu.ai.mit.edu">GNU</a> version of make, it is free and,
	67	if missing on your machine, it can be loaded from the GNU Internet site
	68	<a href="ftp://ftp.gnu.ai.mit.edu/pub/gnu/make">
	69	ftp://ftp.gnu.ai.mit.edu/pub/gnu/make</a>. <kbd>gmake</kbd> is compatible
	70	with the standard UNIX <kbd>make</kbd> and on the CERN ion WGS
	71	<kbd>make</kbd> is aliased to <kbd>gmake</kbd>. The only files you need for
	72	<kbd>gmake</kbd> are the executable <kbd>gmake</kbd>
	73	and the script <kbd>autoconf</kbd>, therefore you can copy such files from
	74	any site in a directory in your path.
	75
	76	<h3>ROOT</h3>
	77
	78	<p> <em>ROOT</em> is available for many platforms, therefore in most cases
	79	no <em>ROOT</em> installation is required. To install ROOT on your machine,
	80	connect to the <a href="http://root.cern.ch">web site</a> and follow the
	81	link <em>downloads</em>. Usually you should get the latest release, unless
	82	announced differently by the news of the Off-line Project.
	83
	84	<p> All you need to do is download the compressed tar file, that usually is
	85	called <var>root_v...tar.gz</var>uncompress and untar it (we supposed you
	86	downloaded the tar file in your <var>$HOME</var>):
	87
	88	<p><kbd>
	89	$ gunzip root_v...tar.gz
57386c20	90	<br>$ cd <i>directory</i> # name of the directory where you want ROOT to sit
57386c20	91	<br>$ tar xvf ~/root_v...tar
b813c727	92	</kbd>
4c505702	93
b813c727	94	<p> When tar ends, you will have the full root directory tree, with already
	95	installed libraries for your platform.
	96
	97	<p> The following shell variables should be defined in the login scripts:
	98
	99	<p><table align=centre borders=no>
	100	<tr><th align=left>variable</th><th align=left>value</th></tr>
	101	<tr><td width=50%>ROOTSYS </td><td> <i>directory</i>/root
	102	<tr><td colspan=2><i><center>on all systems but HP-UX</center></i></td></tr>
	103	<tr><td>LD_LIBRARY_PATH</td>
	104	<td>$LD_LIBRARY_PATH\:$ROOTSYS/lib</td></tr>
	105	<tr><td colspan=2><i><center>on HP-UX</center></i></td></tr>
	106	<tr><td>SHLIB_PATH</td>
	107	<td>$SHLIB_PATH\:$ROOTSYS/lib</td></tr>
	108	<tr><td>PATH</td>
	109	<td> $PATH\:$ROOTSYS/bin </td></tr>
	110	</table>
	111
	112
	113	<h2><A HREF="#Content" NAME="Installation">Installation</A></h2>
14c31136	114
	115	<ol>
	116	<p><li> Install <a href="http://root.cern.ch">ROOT</a> and define the
	117	necessary variables correctly.
	118
	119	<p><li> Decide where the code will reside (from here on <i>directory</i>).
	120
	121	<p><li>Define the following global variables in the login script
	122
	123	<p><table align=centre borders=no>
	124	<tr><th align=left>variable</th><th align=left>value</th></tr>
	125	<tr><td width=30%>ALICE </td><td> <i>directory</i>
	126	<tr><td>ALICE_LEVEL </td><td> pro </td></tr>
	127	<tr><td>ALICE_ROOT </td><td> $ALICE/$ALICE_LEVEL </td></tr>
	128	<tr><td>ALICE_TARGET </td><td> `uname`
	129	(i.e. result of the Unix <b>uname</b> command)</td></tr>
	130	<tr><td colspan=2><i><center>on all systems but HP-UX</center></i></td></tr>
	131	<tr><td>LD_LIBRARY_PATH</td>
	132	<td>$ALICE_ROOT/lib/tgt_${ALICE_TARGET}\:$LD_LIBRARY_PATH</td></tr>
	133	<tr><td colspan=2><i><center>on HP-UX</center></i></td></tr>
	134	<tr><td>SHLIB_PATH</td>
	135	<td>$ALICE_ROOT/lib/tgt_${ALICE_TARGET}\:$SHLIB_PATH</td></tr>
	136	<tr><td>PATH</td>
	137	<td> $PATH\:$ALICE_ROOT/bin/tgt_${ALICE_TARGET} </td></tr>
	138	</table>
	139
	140	<p>At this point you should logout, login again and check that the symbols
	141	are set correctly.
	142
78fbaa94	143	<p><li> Retrieve the AliRoot code. There are two ways to do this: the
	144	preferred way is retrieving a tar file on the ftp server and the
	145	slow and network consuming way is checking out the whole cvs tree.
	146
14c31136	147	<ul>
78fbaa94	148	<p><li> <em>From a tar file</em>. This is the preferred way. Tar files
	149	for the different releases including an up-to-date file remade
	150	every night are available on the ftp server
	151	<a href="ftp://alisoft.cern.ch/pub/offline">
	152	ftp://alisoft.cern.ch/pub/offline</a>. The tar files include the
	153	"CVS" subdirectories for the anonymous cvs user (login "cvs"). So after
	154	getting the full tar file, it is possible to incrementally update
	155	the code using cvs.
	156
	157	<p> The tar file(s) can to be unpacked into the $ALICE directory
	158	via the command:
	159
	160	<p><pre>$ gtar xvfz V3.XX.tar.gz</pre>
	161
	162	<p> A script <a href="ftp://alisoft.cern.ch/pub/misc/">changeCVSRoot</a>
	163	is available to convert a CVS tree under user "cvs" to another
	164	user. For example, <pre> ChangeRoot tpc </pre>
	165
	166
	167	<p><li> <em>From cvs remote cvs server</em>. The setup of the access
	168	to the remote cvs server is described in the Code Development
	169	section. The code is dowloaded via the command:
14c31136	170
	171	<p><pre>
	172	$ cd $ALICE
f5a8ce83	173	$ cvsa co -r Release-3-02 -d pro AliRoot
14c31136	174	</pre>
14c31136	175
94ce3382	176	<p>Where the meaning of <kbd>cvsa</kbd> is explained in the
	177	<a href="../development.html">code development</a> section.
	178
14c31136	179	</ul>
	180
	181	<p><li>install the CERN library part
	182
	183	<p><pre>
	184	$ cd $ALICE_ROOT
	185	$ gmake cernlibs
	186	</pre>
	187
	188	<p><li>Install the ALICE specific software
	189
	190	<p><pre>
	191	$ cd $ALICE_ROOT
	192	$ gmake
	193	</pre>
	194
	195	<p><li>Copy the file $ALICE_ROOT/.rootrc to your home directory
	196
29cbfde8	197	<p><li>For users with c-like shells, update your search path:
	198
	199	<p>
	200	<pre>
	201	$ rehash
	202	</pre>
	203
	204	<p>This usually has to be done only once, after having defined the new PATH.
	205
14c31136	206	<p><li>Change to your home directory and run the code
	207
	208	<p>
	209	<pre>
	210	$ cd
	211	$ aliroot
	212
	213	<output from aliroot>
	214
	215	root [1] .x menu.C
	216	</pre>
	217	</ol>
	218
4c505702	219	<h2><A HREF="#Content" NAME="Code">Code development and user environment</A></h2>
87ad6e14	220
	221	<p>If the ALICE environment is set up correctly, the
	222	<var>$ALICE_ROOT/lib/tgt_$ALICE_TARGET</var> directory is in the shared
	223	libraries load path, and the <var>$ALICE_ROOT/bin/tgt_$ALICE_TARGET</var>
481bb6ef	224	directory is in the PATH variable. This means that the command
481bb6ef	225	<kbd>aliroot</kbd> will in fact correspond to the file
87ad6e14	226	<var>$ALICE_ROOT/bin/tgt_$ALICE_TARGET/aliroot</var>.
	227
	228	<p>This is convenient for the normal user, but as soon as the user wants to
	229	modify one or more directories, this arrangement becomes inefficient
	230	because if a local copy of one of the shared libraries is remade, the
	231	linker will always find the official unmodified one that sits in the above
	232	directory before the local one in the load library path. Moreover, and
	233	unless the full path is specified, the local version of the <b>aliroot</b>
	234	executable will be ignored and the official version executed.
	235
	236	<p>Therefore in order to develop one or more packages locally
	237	(let's say the TPC) and make modifications, the following steps should be
	238	performed. We suppose here that the remote cvs server has been setup correctly
4c505702	239	as explained in the <a href="../development.html">code development</a> section.
87ad6e14	240
5023a744	241	<p><table id="wide" cellspacing=10%>
	242	<tr align=center>
	243	<th colspan=2>
	244	<hr><br>
	245	<font size=+1>Preparation of the environment</font>
	246	<br><hr>
87ad6e14	247	<tr align=left>
	248	<th width=30%>$ mkdir AliRoot
	249	<td width=50%>create the working directory
	250	<tr align=left>
	251	<th>$ cd AliRoot
	252	<td>set default to it
	253	<tr align=left>
	254	<th>$ mkdir pro
	255	<td>create pro subdirectory
	256	<tr align=left>
	257	<th>$ cd pro
	258	<td>set default to it
	259	<tr align=left>
	260	<th>$ ln -s $ALICE_ROOT/* ./
	261	<td>link all files here
	262	<tr align=left>
481bb6ef	263	<th>$ rm lib
87ad6e14	264	<td>remove link for library, we need a local file here to containing the new
	265	TPC library
	266	<tr align=left>
	267	<th>$ rm bin
481bb6ef	268	<td>remove bin, we need a local copy of the <var>aliroot</var>
481bb6ef	269	executable
57386c20	270	<tr align=left>
94ce3382	271	<th>$ mkdir bin
94ce3382	272	<td>make a local bin directory
481bb6ef	273	<tr align=left>
	274	<th>$ rm CVS
	275	<td>remove the link to the CVS directory, we need a local one
	276	to check-out files
87ad6e14	277	<tr align=left>
	278	<th>$ rm TPC
	279	<td>remove link for TPC subdirectory, we need the real files here
	280	<tr align=left>
	281	<th>$ rm ALIROOT
	282	<td>remove link to ALIROOT subdirectory, may be this is not really necessary
	283	on all systems, but we do it just to be on the safe side
	284	<tr align=left>
481bb6ef	285	<th>$ cvsa co -r Release-3-02 TPC
	286	<td>get from the cvs server the release version of the TPC files to be
	287	modified
87ad6e14	288	<tr align=left>
481bb6ef	289	<th>$ cvsa co -r Release-3-02 ALIROOT
	290	<td>get from the server the release version of the ALIROOT files to recreate
	291	the executable
87ad6e14	292	<tr align=left>
	293	<th>$ mkdir -p lib/tgt_$ALICE_TARGET
	294	<td>create library directory
	295	<tr align=left>
	296	<th>$ cd lib/tgt_$ALICE_TARGET
	297	<td>set default to the lib directory
	298	<tr align=left>
94ce3382	299	<th>$ ln -s $ALICE_ROOT/lib/tgt_$ALICE_TARGET/* ./
87ad6e14	300	<td>link all libraries here
87ad6e14	301	<tr align=left>
5023a744	302	<th>$ rm libTPC.sl (on HP)
5023a744	303	<br>$ rm libTPC.so (on the other systems)
87ad6e14	304	<td>remove link to TPC library, we need a real one
	305	<tr align=left>
	306	<th>$ changeRoot $HOME/AliRoot
5023a744	307	<td>change the AliRoot root to $HOME/AliRoot via the <em>changeRoot</em> command
87ad6e14	308	<tr align=left>
	309	<th>$ rehash
	310	<td>make sure that the new PATH is taken into account by the shell
5023a744	311	<tr align=center>
	312	<th colspan=2>
	313	<hr><br>
	314	<font size=+1>Normal development cycle</font>
	315	<br><hr>
87ad6e14	316	<tr align=left>
	317	<th>$ cd $ALICE_ROOT/TPC
	318	<td>(1) set default to TPC directory
	319	<tr align=left>
	320	<th>$ make macroclean
	321	<td>clean up all objects
	322	<tr align=left>
	323	<th>$ emacs AliTPCv1.cxx
	324	<td>(2) edit all the files...
	325	<tr align=left>
	326	<th>$ make
	327	<td>(3) recreate ../lib/libTPC.sl
	328	<tr align=left>
	329	<th>$ cd ../ALIROOT
	330	<td>set default to ALIROOT directory
	331	<tr align=left>
	332	<th>$ make macroclean
	333	<td>clean up object files
	334	<tr align=left>
	335	<th>$ make
	336	<td>make new executable
	337	<tr align=left>
	338	<th>$ cd <em>directory</em>
	339	<td>(4) set default elsewhere
	340	<tr align=left>
	341	<th>$ aliroot
	342	<td>(5) run aliroot
5023a744	343	<tr align=center>
	344	<th colspan=2>
	345	<hr>
87ad6e14	346	</table>
	347
	348	<p>Steps 1-5 are the normal development cycle after the first pass through the
	349	procedure.
	350
14c31136	351	<hr>
	352	<address>
	353	<script language="JavaScript">
	354	document.write("Last modified "+ document.lastModified)
	355	// end of script -->
	356	</script>
	357	by <a href="mailto:Federico.Carminati@cern.ch">Federico Carminati</a>
	358	</address>
	359	</BODY>
	360	</HTML>