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<! Style Sheet Header>
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<html>
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<head>
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<title>binary.html</title>
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<body bgcolor="beige">
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<! End Style Sheet Header -----------Insert Text Here --------------------->
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<center>
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<H1>Building Binaries</H1>
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<font color=red>S</font>oftware <font color=red>C</font>onfiguration,
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<font color=red>R</font>elease <font color=red>A</font>nd
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<font color=red>M</font>anagement
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</center>
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Contents<br>
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<ul>
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<li><a href=#QS>Quick-Start Build</a>
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<li><a href=#BOP>Alternative Build Operations</a>
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<li><a href=#Dep>Constructing BuildFiles</a>
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</ul>
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<hr>
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<ol>
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<a name=QS>
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<h1>Building Operations</h2></a>
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<li><h2>Quick-Start -- for PreDefined Builds</h2>
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Goto the directory of the binary source files
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<font +1>
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<p>
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<b>cd <em>binary_dir</em></b>
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<p>
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</font>
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Start the build process
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<p>
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<font +1>
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<b>scram build</b>
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</font>
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<p>
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Setup your environment
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<p>
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<font +1>
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<b>eval `scram runtime -csh`</b>
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</font>
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For csh like shells
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<br>
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or<br>
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<font +1>
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<b>eval `scram runtime -sh`</b>
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</font>
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For sh like shells
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<p>
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rehash for your shell.
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<p>
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<font +1>
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<b>rehash</b>
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</font>
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<p>
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Just type the executable name to run ...
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<p>
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<li><a name=BOP><h2>Alternative Build Operations</h2></a>
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There are a number of targets available to help you specify exactly what you
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wish to build. <br>
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If no target is specified a default action is performed
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which is defined according to the policy of the given project.
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<p>
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<h3>General Invocation</h3>
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<font +1>
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<b>scram build <em>target_name</em></b>
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</font>
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<p>
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The target names available will be listed with the <b>scram build help</b> command
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</ol>
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<a name=Def>
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<h1>Constructing a BuildFile to describe a binary</h1>
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<ol>
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<li><h2>The <bin> tag</h2>
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Syntax
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<pre>
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<bin file=<em>filename</em> [name=alternativename]>
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You can add some descriptive documentation for your executable here - how about a href?
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</bin>
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</pre>
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Every executable to be made must have a corresponding bin tag in the BuildFile. <p>
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The optional <b>name=</b>
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argument allows you to change the name from the default (which is the filename
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less the subscript)
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<p>
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<li><a name=Dep><h2>Specifying Dependencies</h2></a>
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A binary can depend on many other elements. Currently scram supports the concepts and associated
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tags as given in the table below :
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<table>
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<tr>
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<td><font color=green>
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<external ref=<em>external_product_ref</em>></font></td>
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<td>
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Specify that the build requires some external product
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(e.g. libraries, header files etc.). Currently the only supported ref is
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a simple name label set at the project level. Such names are part of the project configuration.
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</td>
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</tr>
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<tr>
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<td><font color=green>
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<lib name=<em>libname</em>></font></td>
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<td>Add a library name to the link line. It is assumed that the libraries can be found in the
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standard scram search paths</td>
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</tr>
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<tr>
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<td><font color=green>
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<Use name=<em>unit_name</em>></font></td>
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<td>Inform build system that we require package <em>unit_name</em> in
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the build. A package is a unit within the current source code and requires that an appropriate
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interface has been defined in the appropriate BuildFile with the
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<a href=export.html><export> tags</a>
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</td>
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</tr>
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<tr>
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<td><font color=green>
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<Group name=<em>group_name</em>></font></td>
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<td>Inform build system to set a specific group.
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Groups are either containers of other groups (defined at the project configuration level)
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, or can be used to switch in/out functionality
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from an <a href=export.html><export> interface</a>
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</td>
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</table>
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Each of these tags can be put in the BuildFile to build up an 'Environment' in which the
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binary is to be built. The BuildFile itself provides the base environment, however more control
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can be achieved using the <Environment> </Environment> tags, to determine its extent.
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Any <bin> tag inside the <Environment> delimiters will be associated with that (and any other enclosing) environment.
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Note that since the BuildFile is an Environment in itself - it encloses all other Environments and as such any dependency specified outside of an <Environment> tag will apply to all binaries.
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<p>
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<a href=BuildFileExamples.html>Example BuildFile</a>
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</ol>
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<! Style Sheet Footer ---------------Do not change anything after this line-->
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<hr>
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<table border=1 width=100%>
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<td align=left>
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<a href=mailto:Christopher.Williams@cern.ch
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>Chris Williams</a>
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</td>
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<td align=center>
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Last Updated Wed Oct 13 16:20:58 1999
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</td>
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<td align=right><a href=/cgi-cmc/pagestat>Show Stats</a>
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</td>
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</table>
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</body> </html>
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