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<a href="./Home">MLton 20201002</a>
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<h1>CompilationManager</h1>
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<div class="paragraph"><p>The <a href="http://www.smlnj.org/doc/CM/index.html">Compilation Manager</a> (CM) is SML/NJ&#8217;s mechanism for supporting programming-in-the-very-large.</p></div>
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<h2 id="_porting_sml_nj_cm_files_to_mlton">Porting SML/NJ CM files to MLton</h2>
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<div class="paragraph"><p>To help in porting CM files to MLton, the MLton source distribution
includes the sources for a utility, <span class="monospaced">cm2mlb</span>, that will print an
<a href="MLBasis"> ML Basis</a> file with essentially the same semantics as the
CM file&#8201;&#8212;&#8201;handling the full syntax of CM supported by your installed
SML/NJ version and correctly handling export filters.  When <span class="monospaced">cm2mlb</span>
encounters a <span class="monospaced">.cm</span> import, it attempts to convert it to a
corresponding <span class="monospaced">.mlb</span> import.  CM anchored paths are translated to
paths according to a default configuration file
(<a href="https://github.com/MLton/mlton/blob/master/util/cm2mlb/cm2mlb-map"><span class="monospaced">cm2mlb-map</span></a>). For example,
the default configuration includes</p></div>
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<pre># Standard ML Basis Library
$SMLNJ-BASIS                            $(SML_LIB)/basis
$basis.cm                               $(SML_LIB)/basis
$basis.cm/basis.cm                      $(SML_LIB)/basis/basis.mlb</pre>
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<div class="paragraph"><p>to ensure that a <span class="monospaced">$/basis.cm</span> import is translated to a
<span class="monospaced">$(SML_LIB)/basis/basis.mlb</span> import.  See <span class="monospaced">util/cm2mlb</span> for details.
Building <span class="monospaced">cm2mlb</span> requires that you have already installed a recent
version of SML/NJ.</p></div>
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