HCoop / hcoop / debian / mlton.git / blame
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| 6 | <title>MLBasisPathMap</title>\r | |
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| 22 | <a href="./Home">MLton 20180207</a>\r | |
| 23 | </div>\r | |
| 24 | </div>\r | |
| 25 | <div id="header">\r | |
| 26 | <h1>MLBasisPathMap</h1>\r | |
| 27 | </div>\r | |
| 28 | <div id="content">\r | |
| 29 | <div id="preamble">\r | |
| 30 | <div class="sectionbody">\r | |
| 31 | <div class="paragraph"><p>An <a href="MLBasis">ML Basis</a> <em>path map</em> describes a map from ML Basis path\r | |
| 32 | variables (of the form <span class="monospaced">$(VAR)</span>) to file system paths. ML Basis path\r | |
| 33 | variables provide a flexible way to refer to libraries while allowing\r | |
| 34 | them to be moved without changing their clients.</p></div>\r | |
| 35 | <div class="paragraph"><p>The format of an <span class="monospaced">mlb-path-map</span> file is a sequence of lines; each line\r | |
| 36 | consists of two, white-space delimited tokens. The first token is a\r | |
| 37 | path variable <span class="monospaced">VAR</span> and the second token is the path to which the\r | |
| 38 | variable is mapped. The path may include path variables, which are\r | |
| 39 | recursively expanded.</p></div>\r | |
| 40 | <div class="paragraph"><p>The mapping from path variables to paths is initialized by the compiler.\r | |
| 41 | Additional path maps can be specified with <span class="monospaced">-mlb-path-map</span> and\r | |
| 42 | individual path variable mappings can be specified with\r | |
| 43 | <span class="monospaced">-mlb-path-var</span> (see <a href="CompileTimeOptions">CompileTimeOptions</a>). Configuration files are\r | |
| 44 | processed from first to last and from top to bottom, later mappings\r | |
| 45 | take precedence over earlier mappings.</p></div>\r | |
| 46 | <div class="paragraph"><p>The compiler and system-wide configuration file makes the following\r | |
| 47 | path variables available.</p></div>\r | |
| 48 | <table class="tableblock frame-all grid-all"\r | |
| 49 | style="\r | |
| 50 | width:100%;\r | |
| 51 | ">\r | |
| 52 | <col style="width:25%;">\r | |
| 53 | <col style="width:75%;">\r | |
| 54 | <thead>\r | |
| 55 | <tr>\r | |
| 56 | <th class="tableblock halign-center valign-top" >MLB path variable</th>\r | |
| 57 | <th class="tableblock halign-left valign-top" >Description</th>\r | |
| 58 | </tr>\r | |
| 59 | </thead>\r | |
| 60 | <tbody>\r | |
| 61 | <tr>\r | |
| 62 | <td class="tableblock halign-center valign-top" ><p class="tableblock"><span class="monospaced">SML_LIB</span></p></td>\r | |
| 63 | <td class="tableblock halign-left valign-top" ><p class="tableblock">path to system-wide libraries, usually <span class="monospaced">/usr/lib/mlton/sml</span></p></td>\r | |
| 64 | </tr>\r | |
| 65 | <tr>\r | |
| 66 | <td class="tableblock halign-center valign-top" ><p class="tableblock"><span class="monospaced">TARGET_ARCH</span></p></td>\r | |
| 67 | <td class="tableblock halign-left valign-top" ><p class="tableblock">string representation of target architecture</p></td>\r | |
| 68 | </tr>\r | |
| 69 | <tr>\r | |
| 70 | <td class="tableblock halign-center valign-top" ><p class="tableblock"><span class="monospaced">TARGET_OS</span></p></td>\r | |
| 71 | <td class="tableblock halign-left valign-top" ><p class="tableblock">string representation of target operating system</p></td>\r | |
| 72 | </tr>\r | |
| 73 | <tr>\r | |
| 74 | <td class="tableblock halign-center valign-top" ><p class="tableblock"><span class="monospaced">DEFAULT_INT</span></p></td>\r | |
| 75 | <td class="tableblock halign-left valign-top" ><p class="tableblock">binding for default int, usually <span class="monospaced">int32</span></p></td>\r | |
| 76 | </tr>\r | |
| 77 | <tr>\r | |
| 78 | <td class="tableblock halign-center valign-top" ><p class="tableblock"><span class="monospaced">DEFAULT_WORD</span></p></td>\r | |
| 79 | <td class="tableblock halign-left valign-top" ><p class="tableblock">binding for default word, usually <span class="monospaced">word32</span></p></td>\r | |
| 80 | </tr>\r | |
| 81 | <tr>\r | |
| 82 | <td class="tableblock halign-center valign-top" ><p class="tableblock"><span class="monospaced">DEFAULT_REAL</span></p></td>\r | |
| 83 | <td class="tableblock halign-left valign-top" ><p class="tableblock">binding for default real, usually <span class="monospaced">real64</span></p></td>\r | |
| 84 | </tr>\r | |
| 85 | </tbody>\r | |
| 86 | </table>\r | |
| 87 | </div>\r | |
| 88 | </div>\r | |
| 89 | </div>\r | |
| 90 | <div id="footnotes"><hr></div>\r | |
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