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<title>5.4 Setting up the environment</title>
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<h2>
<a name="1210610"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">5.4 Setting up the environment</font>
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<p>
<a name="1210611"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">Having installed the release there are several environment variables to be set up before you can use any of the tools. These variables are described in this section.</font>
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<h3>
<a name="1210612"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">5.4.1 Setting up your paths</font>
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<a name="1210613"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">To be able to use the tools you will need to add the directory <font size=2 face=Courier><strong>$RELEASE/bin</strong></font> to your <font size=2 face=Courier><strong>PATH</strong></font>, and <font size=2 face=Courier><strong>$RELEASE/lib</strong></font> to your <font size=2 face=Courier><strong>LD_LIBRARY_PATH</strong></font>.</font>
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<a name="1210614"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">For example, using a C shell: </font>
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<a name="1210615"> </a><font size=2 face=Courier><strong>setenv PATH $RELEASE/bin:$PATH<br>setenv LD_LIBRARY_PATH $RELEASE/lib:$LD_LIBRARY_PATH<br></strong></font>
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<a name="1210616"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">Using a Bourne Shell, this becomes:</font>
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<a name="1210617"> </a><font size=2 face=Courier><strong>PATH=$RELEASE/bin:$PATH<br>export PATH<br><br></strong></font>
<a name="1210618"> </a><font size=2 face=Courier><strong>LD_LIBRARY_PATH=$RELEASE/lib:$LD_LIBRARY_PATH<br>export LD_LIBRARY_PATH<br></strong></font>
<h3>
<a name="1210619"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">5.4.2 Setting environment variables</font>
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<p>
<a name="1210620"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">To enable the tools to find libraries and include files you must set up the environment variable <font size=2 face=Courier><strong>ST20ROOT</strong></font>. This environment variable should contain the path of the release directory, under which the standard library and include file directories will be found.</font>
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<p>
<a name="1210621"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">For example, using a C shell: </font>
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<a name="1210622"> </a><font size=2 face=Courier><strong>setenv ST20ROOT $RELEASE<br></strong></font>
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<a name="1210623"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">Using a Bourne Shell, this becomes:</font>
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<a name="1210624"> </a><font size=2 face=Courier><strong>ST20ROOT=$RELEASE<br>export ST20ROOT<br></strong></font>
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<a name="1210625"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">The environment variable <font size=2 face=Courier><strong>$HOME</strong></font> should be set to point to the user's home directory. </font>
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<h3>
<a name="1210626"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">5.4.3 The .st20rc file</font>
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<p>
<a name="1210627"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">A file called <font size=2 face=Courier><strong>.st20rc</strong></font> has been installed into the <font size=2 face=Courier><strong>$RELEASE</strong></font> directory. This contains some predefined commands for the toolset, and is read by some of the tools on starting up.</font>
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<h3>
<a name="1210628"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">5.4.4 Setting up the debugger GUI resource file </font>
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<p>
<a name="1210629"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">As part of the installation, an X resource file named <font size=2 face=Courier><strong>st20run</strong></font> is available in the directory <font size=2 face=Courier><strong>$RELEASE/lib</strong></font>. This file needs to be copied to the system wide <font size=2 face=Courier><strong>app-defaults</strong></font> directory. The standard location for this directory is:</font>
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<a name="1210630"> </a><font size=2 face=Courier><strong>/usr/openwin/lib/app-defaults<br></strong></font>
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<a name="1210631"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">However, this directory can be changed by setting the <font size=2 face=Courier><strong>XFILESEARCHPATH</strong></font> environment variable (see <font size=2 face=Courier><strong>X11(7)</strong></font>).</font>
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<p>
<a name="1210632"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">If you wish to override the standard fonts then you should copy the <font size=2 face=Courier><strong>st20run</strong></font> X resource file to your home directory (specified in <font size=2 face=Courier><strong>$HOME</strong></font>) or to a directory referenced by the environment variable <font size=2 face=Courier><strong>XAPPLRESDIR</strong></font>, and then amend this copy as desired.</font>
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<p>
<a name="1210633"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">This resource file is as follows:</font>
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<a name="1210634"> </a><font size=2 face=Courier><strong><font size=2 face=Courier><em>! Resource file for ST20RUN GUI Motif version.<br>!<br>! This file should be placed in one of the system-wide directories searched <br>! by the X resource loading sequence, <br>! or added to the RESOURCE_MANAGER properties by xrdb.<br>!<br></em></font><br></strong></font>
<a name="1210635"> </a><font size=2 face=Courier><strong><font size=2 face=Courier><em>! If desired a local copy of the file can also be copied to a directory <br>! pointed to by the environment variable $XAPPLRESDIR for tailoring to <br>! individual user preferences.<br>!<br>! Background color of text and lists<br></em></font>st20run*background: grey<br><br></strong></font>
<a name="1210636"> </a><font size=2 face=Courier><strong><font size=2 face=Courier><em>! Background and foreground colors of the variable's value pop up box<br></em></font>st20run*GwPopup*background: white<br>st20run*GwPopup*foreground: black<br><br></strong></font>
<a name="1210637"> </a><font size=2 face=Courier><strong><font size=2 face=Courier><em>! Font used for source code display and variable's window list display<br></em></font>st20run*CodeFont: -adobe-courier-medium-r-normal--*-120-*-*-m-*-iso8859-1<br><br></strong></font>
<a name="1210638"> </a><font size=2 face=Courier><strong><font size=2 face=Courier><em>! Font used for buttons, labels, etc.<br></em></font>st20run*FontList: -b&h-lucida sans typewriter-medium-r-normal-sans-*-120-*-*-m-*-iso8859-1<br><br></strong></font>
<a name="1210639"> </a><font size=2 face=Courier><strong><font size=2 face=Courier><em>! Font used for message and value displays<br>! NOTE: it is recommended that a proportional font is not used here or the<br>! formatting of tables will be incorrect<br></em></font>st20run*MonoFont: -adobe-courier-medium-r-normal--*-120-*-*-m-*-iso8859-1<br></strong></font>
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