docs/users_guide/flags.xml

   1 <?xml version="1.0" encoding="iso-8859-1"?>
   2   <sect1 id="flag-reference">
   3     <title>Flag reference</title>
   4
   5     <para>This section is a quick-reference for GHC's command-line
   6     flags.  For each flag, we also list its static/dynamic status (see
   7     <xref linkend="static-dynamic-flags"/>), and the flag's opposite
   8     (if available).</para>
   9
  10     <sect2>
  11       <title>Help and verbosity options</title>
  12
  13       <para><xref linkend="options-help"/></para>
  14
  15       <informaltable>
  16         <tgroup cols="4" align="left" colsep="1" rowsep="1">
  17           <thead>
  18             <row>
  19               <entry>Flag</entry>
  20               <entry>Description</entry>
  21               <entry>Static/Dynamic</entry>
  22               <entry>Reverse</entry>
  23             </row>
  24           </thead>
  25           <tbody>
  26             <row>
  27               <entry><option>-?</option></entry>
  28               <entry>help</entry>
  29               <entry>mode</entry>
  30               <entry>-</entry>
  31             </row>
  32             <row>
  33               <entry><option>-help</option></entry>
  34               <entry>help</entry>
  35               <entry>mode</entry>
  36               <entry>-</entry>
  37             </row>
  38             <row>
  39               <entry><option>-n</option></entry>
  40               <entry>do a dry run</entry>
  41               <entry>dynamic</entry>
  42               <entry>-</entry>
  43             </row>
  44             <row>
  45               <entry><option>-v</option></entry>
  46               <entry>verbose mode (equivalent to <option>-v3</option>)</entry>
  47               <entry>dynamic</entry>
  48               <entry>-</entry>
  49             </row>
  50             <row>
  51               <entry><option>-v</option><replaceable>n</replaceable></entry>
  52               <entry>set verbosity level</entry>
  53               <entry>dynamic</entry>
  54               <entry>-</entry>
  55             </row>
  56             <row>
  57               <entry><option>-V</option></entry>
  58               <entry>display GHC version</entry>
  59               <entry>mode</entry>
  60               <entry>-</entry>
  61             </row>
  62             <row>
  63               <entry><option>&ndash;&ndash;supported-languages</option></entry>
  64               <entry>display the supported language extensions</entry>
  65               <entry>mode</entry>
  66               <entry>-</entry>
  67             </row>
  68             <row>
  69               <entry><option>&ndash;&ndash;info</option></entry>
  70               <entry>display information about the compiler</entry>
  71               <entry>mode</entry>
  72               <entry>-</entry>
  73             </row>
  74             <row>
  75               <entry><option>&ndash;&ndash;version</option></entry>
  76               <entry>display GHC version</entry>
  77               <entry>mode</entry>
  78               <entry>-</entry>
  79             </row>
  80             <row>
  81               <entry><option>&ndash;&ndash;numeric-version</option></entry>
  82               <entry>display GHC version (numeric only)</entry>
  83               <entry>mode</entry>
  84               <entry>-</entry>
  85             </row>
  86             <row>
  87               <entry><option>&ndash;&ndash;print-libdir</option></entry>
  88               <entry>display GHC library directory</entry>
  89               <entry>mode</entry>
  90               <entry>-</entry>
  91             </row>
  92             <row>
  93               <entry><option>-ferror-spans</option></entry>
  94               <entry>output full span in error messages</entry>
  95               <entry>static</entry>
  96               <entry>-</entry>
  97             </row>
  98             <row>
  99               <entry><option>-H</option><replaceable>size</replaceable></entry>
 100               <entry>Set the minimum heap size to <replaceable>size</replaceable></entry>
 101               <entry>static</entry>
 102               <entry>-</entry>
 103             </row>
 104             <row>
 105               <entry><option>-Rghc-timing</option></entry>
 106               <entry>Summarise timing stats for GHC (same as <literal>+RTS -tstderr</literal>)</entry>
 107               <entry>static</entry>
 108               <entry>-</entry>
 109             </row>
 110           </tbody>
 111         </tgroup>
 112       </informaltable>
 113
 114     </sect2>
 115     <sect2>
 116       <title>Which phases to run</title>
 117
 118       <para><xref linkend="options-order"/></para>
 119
 120       <informaltable>
 121         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 122           <thead>
 123             <row>
 124               <entry>Flag</entry>
 125               <entry>Description</entry>
 126               <entry>Static/Dynamic</entry>
 127               <entry>Reverse</entry>
 128             </row>
 129           </thead>
 130           <tbody>
 131             <row>
 132               <entry><option>-E</option></entry>
 133               <entry>Stop after preprocessing (<literal>.hspp</literal> file)</entry>
 134               <entry>mode</entry>
 135               <entry>-</entry>
 136             </row>
 137             <row>
 138               <entry><option>-C</option></entry>
 139               <entry>Stop after generating C (<literal>.hc</literal> file)</entry>
 140               <entry>mode</entry>
 141               <entry>-</entry>
 142             </row>
 143             <row>
 144               <entry><option>-S</option></entry>
 145               <entry>Stop after generating assembly (<literal>.s</literal> file)</entry>
 146               <entry>mode</entry>
 147               <entry>-</entry>
 148             </row>
 149             <row>
 150               <entry><option>-c</option></entry>
 151               <entry>Do not link</entry>
 152               <entry>dynamic</entry>
 153               <entry>-</entry>
 154             </row>
 155             <row>
 156               <entry><option>-x</option> <replaceable>suffix</replaceable></entry>
 157               <entry>Override default behaviour for source files</entry>
 158               <entry>static</entry>
 159               <entry>-</entry>
 160             </row>
 161           </tbody>
 162         </tgroup>
 163       </informaltable>
 164     </sect2>
 165
 166      <sect2>
 167       <title>Alternative modes of operation</title>
 168
 169       <para><xref linkend="modes"/></para>
 170
 171       <informaltable>
 172         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 173           <thead>
 174             <row>
 175               <entry>Flag</entry>
 176               <entry>Description</entry>
 177               <entry>Static/Dynamic</entry>
 178               <entry>Reverse</entry>
 179             </row>
 180           </thead>
 181           <tbody>
 182             <row>
 183               <entry><option>--interactive</option></entry>
 184               <entry>Interactive mode - normally used by just running <command>ghci</command>;
 185               see <xref linkend="ghci"/> for details.</entry>
 186               <entry>mode</entry>
 187               <entry>-</entry>
 188             </row>
 189             <row>
 190               <entry><option>--make</option></entry>
 191               <entry>Build a multi-module Haskell program, automatically figuring out dependencies. Likely to be much easier, and faster, than using <command>make</command>;
 192               see <xref linkend="make-mode"/> for details..</entry>
 193               <entry>mode</entry>
 194               <entry>-</entry>
 195             </row>
 196             <row>
 197               <entry><option>-e <replaceable>expr</replaceable></option></entry>
 198               <entry>Evaluate <replaceable>expr</replaceable>;
 199               see <xref linkend="eval-mode"/> for details.</entry>
 200               <entry>mode</entry>
 201               <entry>-</entry>
 202             </row>
 203             <row>
 204               <entry><option>-M</option></entry>
 205               <entry>Generate dependency information suitable for use in a <filename>Makefile</filename>;
 206               see <xref linkend="makefile-dependencies"/> for details.</entry>
 207               <entry>mode</entry>
 208               <entry>-</entry>
 209             </row>
 210           </tbody>
 211         </tgroup>
 212       </informaltable>
 213     </sect2>
 214
 215     <sect2>
 216       <title>Redirecting output</title>
 217
 218       <para><xref linkend="options-output"/></para>
 219
 220       <informaltable>
 221         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 222           <thead>
 223             <row>
 224               <entry>Flag</entry>
 225               <entry>Description</entry>
 226               <entry>Static/Dynamic</entry>
 227               <entry>Reverse</entry>
 228             </row>
 229           </thead>
 230           <tbody>
 231             <row>
 232               <entry><option>-hcsuf</option> <replaceable>suffix</replaceable></entry>
 233               <entry>set the suffix to use for intermediate C files</entry>
 234               <entry>dynamic</entry>
 235               <entry>-</entry>
 236             </row>
 237             <row>
 238               <entry><option>-hidir</option> <replaceable>dir</replaceable></entry>
 239               <entry>set directory for interface files</entry>
 240               <entry>dynamic</entry>
 241               <entry>-</entry>
 242             </row>
 243             <row>
 244               <entry><option>-hisuf</option> <replaceable>suffix</replaceable></entry>
 245               <entry>set the suffix to use for interface files</entry>
 246               <entry>dynamic</entry>
 247               <entry>-</entry>
 248             </row>
 249             <row>
 250               <entry><option>-o</option> <replaceable>filename</replaceable></entry>
 251               <entry>set output filename</entry>
 252               <entry>dynamic</entry>
 253               <entry>-</entry>
 254             </row>
 255             <row>
 256               <entry><option>-odir</option> <replaceable>dir</replaceable></entry>
 257               <entry>set output directory</entry>
 258               <entry>dynamic</entry>
 259               <entry>-</entry>
 260             </row>
 261             <row>
 262               <entry><option>-ohi</option> <replaceable>filename</replaceable></entry>
 263               <entry>set the filename in which to put the interface</entry>
 264               <entry>dynamic</entry>
 265               <entry></entry>
 266             </row>
 267             <row>
 268               <entry><option>-osuf</option> <replaceable>suffix</replaceable></entry>
 269               <entry>set the output file suffix</entry>
 270               <entry>dynamic</entry>
 271               <entry>-</entry>
 272             </row>
 273             <row>
 274               <entry><option>-stubdir</option> <replaceable>dir</replaceable></entry>
 275               <entry>redirect FFi stub files</entry>
 276               <entry>dynamic</entry>
 277               <entry>-</entry>
 278             </row>
 279           </tbody>
 280         </tgroup>
 281       </informaltable>
 282     </sect2>
 283
 284     <sect2>
 285       <title>Keeping intermediate files</title>
 286
 287       <para><xref linkend="keeping-intermediates"/></para>
 288
 289       <informaltable>
 290         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 291           <thead>
 292             <row>
 293               <entry>Flag</entry>
 294               <entry>Description</entry>
 295               <entry>Static/Dynamic</entry>
 296               <entry>Reverse</entry>
 297             </row>
 298           </thead>
 299           <tbody>
 300             <row>
 301               <entry><option>-keep-hc-file</option> or
 302                  <option>-keep-hc-files</option></entry>
 303               <entry>retain intermediate <literal>.hc</literal> files</entry>
 304               <entry>dynamic</entry>
 305               <entry>-</entry>
 306             </row>
 307             <row>
 308               <entry><option>-keep-s-file</option> or
 309                  <option>-keep-s-files</option></entry>
 310               <entry>retain intermediate <literal>.s</literal> files</entry>
 311               <entry>dynamic</entry>
 312               <entry>-</entry>
 313             </row>
 314             <row>
 315               <entry><option>-keep-raw-s-file</option> or
 316                  <option>-keep-raw-s-files</option></entry>
 317               <entry>retain intermediate <literal>.raw_s</literal> files</entry>
 318               <entry>dynamic</entry>
 319               <entry>-</entry>
 320             </row>
 321             <row>
 322               <entry><option>-keep-tmp-files</option></entry>
 323               <entry>retain all intermediate temporary files</entry>
 324               <entry>dynamic</entry>
 325               <entry>-</entry>
 326             </row>
 327           </tbody>
 328         </tgroup>
 329       </informaltable>
 330     </sect2>
 331
 332     <sect2>
 333       <title>Temporary files</title>
 334
 335       <para><xref linkend="temp-files"/></para>
 336
 337       <informaltable>
 338         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 339           <thead>
 340             <row>
 341               <entry>Flag</entry>
 342               <entry>Description</entry>
 343               <entry>Static/Dynamic</entry>
 344               <entry>Reverse</entry>
 345             </row>
 346           </thead>
 347           <tbody>
 348             <row>
 349               <entry><option>-tmpdir</option></entry>
 350               <entry>set the directory for temporary files</entry>
 351               <entry>dynamic</entry>
 352               <entry>-</entry>
 353             </row>
 354           </tbody>
 355         </tgroup>
 356       </informaltable>
 357     </sect2>
 358
 359     <sect2>
 360       <title>Finding imports</title>
 361
 362       <para><xref linkend="search-path"/></para>
 363
 364       <informaltable>
 365         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 366           <thead>
 367             <row>
 368               <entry>Flag</entry>
 369
 370               <entry>Description</entry>
 371               <entry>Static/Dynamic</entry>
 372               <entry>Reverse</entry>
 373             </row>
 374           </thead>
 375           <tbody>
 376             <row>
 377               <entry><option>-i</option><replaceable>dir1</replaceable>:<replaceable>dir2</replaceable>:...</entry>
 378               <entry>add <replaceable>dir</replaceable>,
 379                   <replaceable>dir2</replaceable>, etc. to import path</entry>
 380               <entry>static/<literal>:set</literal></entry>
 381               <entry>-</entry>
 382             </row>
 383             <row>
 384               <entry><option>-i</option></entry>
 385               <entry>Empty the import directory list</entry>
 386               <entry>static/<literal>:set</literal></entry>
 387               <entry>-</entry>
 388             </row>
 389           </tbody>
 390         </tgroup>
 391       </informaltable>
 392     </sect2>
 393
 394     <sect2>
 395       <title>Interface file options</title>
 396
 397       <para><xref linkend="hi-options"/></para>
 398
 399       <informaltable>
 400         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 401           <thead>
 402             <row>
 403               <entry>Flag</entry>
 404
 405               <entry>Description</entry>
 406               <entry>Static/Dynamic</entry>
 407               <entry>Reverse</entry>
 408             </row>
 409           </thead>
 410           <tbody>
 411             <row>
 412               <entry><option>-ddump-hi</option></entry>
 413               <entry>Dump the new interface to stdout</entry>
 414               <entry>dynamic</entry>
 415               <entry>-</entry>
 416             </row>
 417             <row>
 418               <entry><option>-ddump-hi-diffs</option></entry>
 419               <entry>Show the differences vs. the old interface</entry>
 420               <entry>dynamic</entry>
 421               <entry>-</entry>
 422             </row>
 423             <row>
 424               <entry><option>-ddump-minimal-imports</option></entry>
 425               <entry>Dump a minimal set of imports</entry>
 426               <entry>dynamic</entry>
 427               <entry>-</entry>
 428             </row>
 429             <row>
 430               <entry><option>--show-iface</option> <replaceable>file</replaceable></entry>
 431               <entry>See <xref linkend="modes"/>.</entry>
 432             </row>
 433           </tbody>
 434         </tgroup>
 435       </informaltable>
 436     </sect2>
 437
 438     <sect2>
 439       <title>Recompilation checking</title>
 440
 441       <para><xref linkend="recomp"/></para>
 442
 443       <informaltable>
 444         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 445           <thead>
 446             <row>
 447               <entry>Flag</entry>
 448
 449               <entry>Description</entry>
 450               <entry>Static/Dynamic</entry>
 451               <entry>Reverse</entry>
 452             </row>
 453           </thead>
 454           <tbody>
 455             <row>
 456               <entry><option>-fforce-recomp</option></entry>
 457               <entry>Turn off recompilation checking; implied by any
 458               <option>-ddump-X</option> option</entry>
 459               <entry>dynamic</entry>
 460               <entry><option>-fno-force-recomp</option></entry>
 461             </row>
 462           </tbody>
 463         </tgroup>
 464       </informaltable>
 465     </sect2>
 466
 467     <sect2 id="interactive-mode-options">
 468       <title>Interactive-mode options</title>
 469
 470       <para><xref linkend="ghci-dot-files"/></para>
 471
 472       <informaltable>
 473         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 474           <thead>
 475             <row>
 476               <entry>Flag</entry>
 477               <entry>Description</entry>
 478               <entry>Static/Dynamic</entry>
 479               <entry>Reverse</entry>
 480             </row>
 481           </thead>
 482           <tbody>
 483             <row>
 484               <entry><option>-ignore-dot-ghci</option></entry>
 485               <entry>Disable reading of <filename>.ghci</filename> files</entry>
 486               <entry>static</entry>
 487               <entry>-</entry>
 488             </row>
 489             <row>
 490               <entry><option>-read-dot-ghci</option></entry>
 491               <entry>Enable reading of <filename>.ghci</filename> files</entry>
 492               <entry>static</entry>
 493               <entry>-</entry>
 494             </row>
 495             <row>
 496               <entry><option>-fbreak-on-exception</option></entry>
 497               <entry><link linkend="ghci-debugger-exceptions">Break on any exception thrown</link></entry>
 498               <entry>dynamic</entry>
 499               <entry><option>-fno-break-on-exception</option></entry>
 500             </row>
 501             <row>
 502               <entry><option>-fbreak-on-error</option></entry>
 503               <entry><link linkend="ghci-debugger-exceptions">Break on uncaught exceptions and errors</link></entry>
 504               <entry>dynamic</entry>
 505               <entry><option>-fno-break-on-error</option></entry>
 506             </row>
 507             <row>
 508               <entry><option>-fprint-evld-with-show</option></entry>
 509               <entry><link linkend="breakpoints">Enable usage of Show instances in <literal>:print</literal></link></entry>
 510               <entry>dynamic</entry>
 511               <entry><option>-fno-print-evld-with-show</option></entry>
 512             </row>
 513             <row>
 514               <entry><option>-fprint-bind-result</option></entry>
 515               <entry><link linkend="ghci-stmts">Turn on printing of binding results in GHCi</link></entry>
 516               <entry>dynamic</entry>
 517               <entry><option>-fno-print-bind-result</option></entry>
 518             </row>
 519             <row>
 520               <entry><option>-fno-print-bind-contents</option></entry>
 521               <entry><link linkend="breakpoints">Turn off printing of binding contents in GHCi</link></entry>
 522               <entry>dynamic</entry>
 523               <entry>-</entry>
 524             </row>
 525
 526           </tbody>
 527         </tgroup>
 528       </informaltable>
 529     </sect2>
 530
 531     <sect2>
 532       <title>Packages</title>
 533
 534       <para><xref linkend="packages"/></para>
 535
 536       <informaltable>
 537         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 538           <thead>
 539             <row>
 540               <entry>Flag</entry>
 541               <entry>Description</entry>
 542               <entry>Static/Dynamic</entry>
 543               <entry>Reverse</entry>
 544             </row>
 545           </thead>
 546           <tbody>
 547             <row>
 548               <entry><option>-package-name</option> <replaceable>P</replaceable></entry>
 549               <entry>Compile to be part of package <replaceable>P</replaceable></entry>
 550               <entry>dynamic</entry>
 551               <entry>-</entry>
 552             </row>
 553             <row>
 554               <entry><option>-package</option> <replaceable>P</replaceable></entry>
 555               <entry>Expose package <replaceable>P</replaceable></entry>
 556               <entry>static/<literal>:set</literal></entry>
 557               <entry>-</entry>
 558             </row>
 559             <row>
 560               <entry><option>-hide-all-packages</option></entry>
 561               <entry>Hide all packages by default</entry>
 562               <entry>static</entry>
 563               <entry>-</entry>
 564             </row>
 565             <row>
 566               <entry><option>-hide-package</option> <replaceable>name</replaceable></entry>
 567               <entry>Hide package <replaceable>P</replaceable></entry>
 568               <entry>static/<literal>:set</literal></entry>
 569               <entry>-</entry>
 570             </row>
 571             <row>
 572               <entry><option>-ignore-package</option> <replaceable>name</replaceable></entry>
 573               <entry>Ignore package <replaceable>P</replaceable></entry>
 574               <entry>static/<literal>:set</literal></entry>
 575               <entry>-</entry>
 576             </row>
 577             <row>
 578               <entry><option>-package-conf</option> <replaceable>file</replaceable></entry>
 579               <entry>Load more packages from <replaceable>file</replaceable></entry>
 580               <entry>static</entry>
 581               <entry>-</entry>
 582             </row>
 583             <row>
 584               <entry><option>-no-user-package-conf</option></entry>
 585               <entry>Don't load the user's package config file.</entry>
 586               <entry>static</entry>
 587               <entry>-</entry>
 588             </row>
 589           </tbody>
 590         </tgroup>
 591       </informaltable>
 592     </sect2>
 593
 594     <sect2>
 595       <title>Language options</title>
 596
 597       <para><xref linkend="options-language"/></para>
 598
 599       <informaltable>
 600         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 601           <thead>
 602             <row>
 603               <entry>Flag</entry>
 604               <entry>Description</entry>
 605               <entry>Static/Dynamic</entry>
 606               <entry>Reverse</entry>
 607             </row>
 608           </thead>
 609           <tbody>
 610             <row>
 611               <entry><option>-fglasgow-exts</option></entry>
 612               <entry>Enable most language extensions</entry>
 613               <entry>dynamic</entry>
 614               <entry><option>-fno-glasgow-exts</option></entry>
 615             </row>
 616             <row>
 617               <entry><option>-XOverlappingInstances</option></entry>
 618               <entry>Enable <link linkend="instance-overlap">overlapping instances</link></entry>
 619               <entry>dynamic</entry>
 620               <entry><option>-XNoOverlappingInstances</option></entry>
 621             </row>
 622             <row>
 623               <entry><option>-XIncoherentInstances</option></entry>
 624               <entry>Enable <link linkend="instance-overlap">incoherent instances</link>.
 625               Implies <option>-XOverlappingInstances</option> </entry>
 626               <entry>dynamic</entry>
 627               <entry><option>-XNoIncoherentInstances</option></entry>
 628             </row>
 629             <row>
 630               <entry><option>-XUndecidableInstances</option></entry>
 631               <entry>Enable <link linkend="undecidable-instances">undecidable instances</link></entry>
 632               <entry>dynamic</entry>
 633               <entry><option>-XNoUndecidableInstances</option></entry>
 634             </row>
 635             <row>
 636               <entry><option>-fcontext-stack=N</option><replaceable>n</replaceable></entry>
 637               <entry>set the <link linkend="undecidable-instances">limit for context reduction</link>. Default is 20.</entry>
 638               <entry>dynamic</entry>
 639               <entry></entry>
 640             </row>
 641             <row>
 642               <entry><option>-XArrows</option></entry>
 643               <entry>Enable <link linkend="arrow-notation">arrow
 644               notation</link> extension</entry>
 645               <entry>dynamic</entry>
 646               <entry><option>-XNoArrows</option></entry>
 647             </row>
 648             <row>
 649               <entry><option>-fdisambiguate-record-fields</option></entry>
 650               <entry>Enable <link linkend="disambiguate-fields">record
 651               field disambiguation</link></entry>
 652               <entry>dynamic</entry>
 653               <entry><option>-fno-disambiguate-record-fields</option></entry>
 654             </row>
 655             <row>
 656               <entry><option>-XForeignFunctionInterface</option></entry>
 657               <entry>Enable <link linkend="ffi">foreign function interface</link> (implied by
 658               <option>-fglasgow-exts</option>)</entry>
 659               <entry>dynamic</entry>
 660               <entry><option>-XNoForeignFunctionInterface</option></entry>
 661             </row>
 662             <row>
 663               <entry><option>-XGenerics</option></entry>
 664               <entry>Enable <link linkend="generic-classes">generic classes</link></entry>
 665               <entry>dynamic</entry>
 666               <entry><option>-XNoGenerics</option></entry>
 667             </row>
 668             <row>
 669               <entry><option>-XImplicitParams</option></entry>
 670               <entry>Enable <link linkend="implicit-parameters">Implicit Parameters</link>.
 671               Implied by <option>-fglasgow-exts</option>.</entry>
 672               <entry>dynamic</entry>
 673               <entry><option>-XNoImplicitParams</option></entry>
 674             </row>
 675             <row>
 676               <entry><option>-firrefutable-tuples</option></entry>
 677               <entry>Make tuple pattern matching irrefutable</entry>
 678               <entry>dynamic</entry>
 679               <entry><option>-fno-irrefutable-tuples</option></entry>
 680             </row>
 681             <row>
 682               <entry><option>-XNoImplicitPrelude</option></entry>
 683               <entry>Don't implicitly <literal>import Prelude</literal></entry>
 684               <entry>dynamic</entry>
 685               <entry><option>-XImplicitPrelude</option></entry>
 686             </row>
 687             <row>
 688               <entry><option>-XNoMonomorphismRestriction</option></entry>
 689               <entry>Disable the <link linkend="monomorphism">monomorphism restriction</link></entry>
 690               <entry>dynamic</entry>
 691               <entry><option>-XMonomorphismRrestriction</option></entry>
 692             </row>
 693             <row>
 694               <entry><option>-XNoMonoPatBinds</option></entry>
 695               <entry>Make <link linkend="monomorphism">pattern bindings polymorphic</link></entry>
 696               <entry>dynamic</entry>
 697               <entry><option>-XMonoPatBinds</option></entry>
 698             </row>
 699             <row>
 700               <entry><option>-XRelaxedPolyRec</option></entry>
 701               <entry>Relaxed checking for <link linkend="typing-binds">mutually-recursive polymorphic functions</link></entry>
 702               <entry>dynamic</entry>
 703               <entry><option>-XNoRelaxedPolyRec</option></entry>
 704             </row>
 705             <row>
 706               <entry><option>-XExtendedDefaultRules</option></entry>
 707               <entry>Use GHCi's <link linkend="extended-default-rules">extended default rules</link> in a normal module</entry>
 708               <entry>dynamic</entry>
 709               <entry><option>-XNoExtendedDefaultRules</option></entry>
 710             </row>
 711             <row>
 712               <entry><option>-XOverloadedStrings</option></entry>
 713               <entry>Enable <link linkend="overloaded-strings">overloaded string literals</link>.
 714               </entry>
 715               <entry>dynamic</entry>
 716               <entry><option>-XNoOverloadedStrings</option></entry>
 717             </row>
 718             <row>
 719               <entry><option>-XGADTs</option></entry>
 720               <entry>Enable <link linkend="gadt">generalised algebraic data types</link>.
 721               </entry>
 722               <entry>dynamic</entry>
 723               <entry><option>-XNoGADTs</option></entry>
 724             </row>
 725             <row>
 726               <entry><option>-XTypeFamilies</option></entry>
 727               <entry>Enable <link linkend="type-families">type families</link>.</entry>
 728               <entry>dynamic</entry>
 729               <entry><option>-XNoTypeFamilies</option></entry>
 730             </row>
 731             <row>
 732               <entry><option>-XScopedTypeVariables</option></entry>
 733               <entry>Enable <link linkend="scoped-type-variables">lexically-scoped type variables</link>.
 734               Implied by <option>-fglasgow-exts</option>.</entry>
 735               <entry>dynamic</entry>
 736               <entry><option>-XNoScopedTypeVariables</option></entry>
 737             </row>
 738             <row>
 739               <entry><option>-XTemplateHaskell</option></entry>
 740               <entry>Enable <link linkend="template-haskell">Template Haskell</link>.
 741                 No longer implied by <option>-fglasgow-exts</option>.</entry>
 742               <entry>dynamic</entry>
 743               <entry><option>-XNoTemplateHaskell</option></entry>
 744             </row>
 745             <row>
 746               <entry><option>-XBangPatterns</option></entry>
 747               <entry>Enable <link linkend="bang-patterns">bang patterns</link>.</entry>
 748               <entry>dynamic</entry>
 749               <entry><option>-XNoBangPatterns</option></entry>
 750             </row>
 751             <row>
 752               <entry><option>-XCPP</option></entry>
 753               <entry>Enable the <link linkend="c-pre-processor">C preprocessor</link>.</entry>
 754               <entry>dynamic</entry>
 755               <entry><option>-XNoCPP</option></entry>
 756             </row>
 757             <row>
 758               <entry><option>-XPatternGuards</option></entry>
 759               <entry>Enable <link linkend="pattern-guards">pattern guards</link>.</entry>
 760               <entry>dynamic</entry>
 761               <entry><option>-XNoPatternGuards</option></entry>
 762             </row>
 763             <row>
 764               <entry><option>-XViewPatterns</option></entry>
 765               <entry>Enable <link linkend="view-patterns">view patterns</link>.</entry>
 766               <entry>dynamic</entry>
 767               <entry><option>-XNoViewPatterns</option></entry>
 768             </row>
 769             <row>
 770               <entry><option>-XUnicodeSyntax</option></entry>
 771               <entry>Enable unicode syntax.</entry>
 772               <entry>dynamic</entry>
 773               <entry><option>-XNoUnicodeSyntax</option></entry>
 774             </row>
 775             <row>
 776               <entry><option>-XMagicHash</option></entry>
 777               <entry>Enable the &ldquo;magic hash&rdquo;.</entry>
 778               <entry>dynamic</entry>
 779               <entry><option>-XNoMagicHash</option></entry>
 780             </row>
 781             <row>
 782               <entry><option>-XPolymorphicComponents</option></entry>
 783               <entry>Enable <link linkend="universal-quantification">polymorphic components for data constructors</link>.</entry>
 784               <entry>dynamic</entry>
 785               <entry><option>-XNoPolymorphicComponents</option></entry>
 786             </row>
 787             <row>
 788               <entry><option>-XRank2Types</option></entry>
 789               <entry>Enable <link linkend="universal-quantification">rank-2 types</link>.</entry>
 790               <entry>dynamic</entry>
 791               <entry><option>-XNoRank2Types</option></entry>
 792             </row>
 793             <row>
 794               <entry><option>-XRankNTypes</option></entry>
 795               <entry>Enable <link linkend="universal-quantification">rank-N types</link>.</entry>
 796               <entry>dynamic</entry>
 797               <entry><option>-XNoRankNTypes</option></entry>
 798             </row>
 799             <row>
 800               <entry><option>-XExistentialQuantification</option></entry>
 801               <entry>Enable <link linkend="existential-quantification">existential quantification</link>.</entry>
 802               <entry>dynamic</entry>
 803               <entry><option>-XNoExistentialQuantification</option></entry>
 804             </row>
 805             <row>
 806               <entry><option>-XKindSignatures</option></entry>
 807               <entry>Enable <link linkend="kinding">kind signatures</link>.</entry>
 808               <entry>dynamic</entry>
 809               <entry><option>-XNoKindSignatures</option></entry>
 810             </row>
 811             <row>
 812               <entry><option>-XPatternSignatures</option></entry>
 813               <entry>Enable <link linkend="pattern-type-sigs">pattern type signatures</link>.</entry>
 814               <entry>dynamic</entry>
 815               <entry><option>-XNoPatternSignatures</option></entry>
 816             </row>
 817             <row>
 818               <entry><option>-XEmptyDataDecls</option></entry>
 819               <entry>Enable empty data declarations.</entry>
 820               <entry>dynamic</entry>
 821               <entry><option>-XNoEmptyDataDecls</option></entry>
 822             </row>
 823             <row>
 824               <entry><option>-XParallelListComp</option></entry>
 825               <entry>Enable <link linkend="parallel-list-comprehensions">parallel list comprehensions</link>.</entry>
 826               <entry>dynamic</entry>
 827               <entry><option>-XNoParallelListComp</option></entry>
 828             </row>
 829             <row>
 830               <entry><option>-XTransformListComp</option></entry>
 831               <entry>Enable <link linkend="generalised-list-comprehensions">transform list comprehensions</link>.</entry>
 832               <entry>dynamic</entry>
 833               <entry><option>-XNoTransformListComp</option></entry>
 834             </row>
 835             <row>
 836               <entry><option>-XUnliftedFFITypes</option></entry>
 837               <entry>Enable unlifted FFI types.</entry>
 838               <entry>dynamic</entry>
 839               <entry><option>-XNoUnliftedFFITypes</option></entry>
 840             </row>
 841             <row>
 842               <entry><option>-XLiberalTypeSynonyms</option></entry>
 843               <entry>Enable <link linkend="type-synonyms">liberalised type synonyms</link>.</entry>
 844               <entry>dynamic</entry>
 845               <entry><option>-XNoLiberalTypeSynonyms</option></entry>
 846             </row>
 847             <row>
 848               <entry><option>-XTypeOperators</option></entry>
 849               <entry>Enable type operators.</entry>
 850               <entry>dynamic</entry>
 851               <entry><option>-XNoTypeOperators</option></entry>
 852             </row>
 853             <row>
 854               <entry><option>-XRecursiveDo</option></entry>
 855               <entry>Enable <link linkend="mdo-notation">recursive do (mdo) notation</link>.</entry>
 856               <entry>dynamic</entry>
 857               <entry><option>-XNoRecursiveDo</option></entry>
 858             </row>
 859             <row>
 860               <entry><option>-XPArr</option></entry>
 861               <entry>Enable parallel arrays.</entry>
 862               <entry>dynamic</entry>
 863               <entry><option>-XNoPArr</option></entry>
 864             </row>
 865             <row>
 866               <entry><option>-XRecordWildCards</option></entry>
 867               <entry>Enable <link linkend="record-wildcards">record wildcards</link>.</entry>
 868               <entry>dynamic</entry>
 869               <entry><option>-XNoRecordWildCards</option></entry>
 870             </row>
 871             <row>
 872               <entry><option>-XRecordPuns</option></entry>
 873               <entry>Enable <link linkend="record-puns">record puns</link>.</entry>
 874               <entry>dynamic</entry>
 875               <entry><option>-XNoRecordPuns</option></entry>
 876             </row>
 877             <row>
 878               <entry><option>-XDisambiguateRecordFields</option></entry>
 879               <entry>Enable  <link linkend="disambiguate-fields">record field disambiguation</link>. </entry>
 880               <entry>dynamic</entry>
 881               <entry><option>-XNoDisambiguateRecordFields</option></entry>
 882             </row>
 883             <row>
 884               <entry><option>-XUnboxedTuples</option></entry>
 885               <entry>Enable <link linkend="unboxed-tuples">unboxed tuples</link>.</entry>
 886               <entry>dynamic</entry>
 887               <entry><option>-XNoUnboxedTuples</option></entry>
 888             </row>
 889             <row>
 890               <entry><option>-XStandaloneDeriving</option></entry>
 891               <entry>Enable <link linkend="stand-alone-deriving">standalone deriving</link>.</entry>
 892               <entry>dynamic</entry>
 893               <entry><option>-XNoStandaloneDeriving</option></entry>
 894             </row>
 895             <row>
 896               <entry><option>-XDeriveDataTypeable</option></entry>
 897               <entry>Enable <link linkend="deriving-typeable">deriving for the Data and Typeable classes</link>.</entry>
 898               <entry>dynamic</entry>
 899               <entry><option>-XNoDeriveDataTypeable</option></entry>
 900             </row>
 901             <row>
 902               <entry><option>-XGeneralizedNewtypeDeriving</option></entry>
 903               <entry>Enable <link linkend="newtype-deriving">newtype deriving</link>.</entry>
 904               <entry>dynamic</entry>
 905               <entry><option>-XNoGeneralizedNewtypeDeriving</option></entry>
 906             </row>
 907             <row>
 908               <entry><option>-XTypeSynonymInstances</option></entry>
 909               <entry>Enable <link linkend="type-synonyms">type synonyms</link>.</entry>
 910               <entry>dynamic</entry>
 911               <entry><option>-XNoTypeSynonymInstances</option></entry>
 912             </row>
 913             <row>
 914               <entry><option>-XFlexibleContexts</option></entry>
 915               <entry>Enable <link linkend="flexible-contexts">flexible contexts</link>.</entry>
 916               <entry>dynamic</entry>
 917               <entry><option>-XNoFlexibleContexts</option></entry>
 918             </row>
 919             <row>
 920               <entry><option>-XFlexibleInstances</option></entry>
 921               <entry>Enable <link linkend="instance-rules">flexible instances</link>.</entry>
 922               <entry>dynamic</entry>
 923               <entry><option>-XNoFlexibleInstances</option></entry>
 924             </row>
 925             <row>
 926               <entry><option>-XConstrainedClassMethods</option></entry>
 927               <entry>Enable <link linkend="class-method-types">constrained class methods</link>.</entry>
 928               <entry>dynamic</entry>
 929               <entry><option>-XNoConstrainedClassMethods</option></entry>
 930             </row>
 931             <row>
 932               <entry><option>-XMultiParamTypeClasses</option></entry>
 933               <entry>Enable <link linkend="multi-param-type-classes">multi parameter type classes</link>.</entry>
 934               <entry>dynamic</entry>
 935               <entry><option>-XNoMultiParamTypeClasses</option></entry>
 936             </row>
 937             <row>
 938               <entry><option>-XFunctionalDependencies</option></entry>
 939               <entry>Enable <link linkend="functional-dependencies">functional dependencies</link>.</entry>
 940               <entry>dynamic</entry>
 941               <entry><option>-XNoFunctionalDependencies</option></entry>
 942             </row>
 943           </tbody>
 944         </tgroup>
 945       </informaltable>
 946     </sect2>
 947
 948     <sect2>
 949       <title>Warnings</title>
 950
 951       <para><xref linkend="options-sanity"/></para>
 952
 953     <informaltable>
 954       <tgroup cols="4" align="left" colsep="1" rowsep="1">
 955         <thead>
 956           <row>
 957             <entry>Flag</entry>
 958             <entry>Description</entry>
 959             <entry>Static/Dynamic</entry>
 960             <entry>Reverse</entry>
 961           </row>
 962         </thead>
 963         <tbody>
 964           <row>
 965             <entry><option>-W</option></entry>
 966             <entry>enable normal warnings</entry>
 967             <entry>dynamic</entry>
 968             <entry><option>-w</option></entry>
 969           </row>
 970           <row>
 971             <entry><option>-w</option></entry>
 972             <entry>disable all warnings</entry>
 973             <entry>dynamic</entry>
 974             <entry>-</entry>
 975           </row>
 976           <row>
 977             <entry><option>-Wall</option></entry>
 978             <entry>enable almost all warnings (details in <xref linkend="options-sanity"/>)</entry>
 979             <entry>dynamic</entry>
 980             <entry><option>-w</option></entry>
 981           </row>
 982           <row>
 983             <entry><option>-Werror</option></entry>
 984             <entry>make warnings fatal</entry>
 985             <entry>dynamic</entry>
 986             <entry>-Wwarn</entry>
 987           </row>
 988           <row>
 989             <entry><option>-Wwarn</option></entry>
 990             <entry>make warnings non-fatal</entry>
 991             <entry>dynamic</entry>
 992             <entry>-Werror</entry>
 993           </row>
 994
 995           <row>
 996             <entry><option>-fwarn-deprecations</option></entry>
 997             <entry>warn about uses of functions &amp; types that are deprecated</entry>
 998             <entry>dynamic</entry>
 999             <entry><option>-fno-warn-deprecations</option></entry>
1000           </row>
1001
1002           <row>
1003             <entry><option>-fwarn-duplicate-exports</option></entry>
1004             <entry>warn when an entity is exported multiple times</entry>
1005             <entry>dynamic</entry>
1006             <entry><option>-fno-warn-duplicate-exports</option></entry>
1007           </row>
1008
1009           <row>
1010             <entry><option>-fwarn-hi-shadowing</option></entry>
1011             <entry>warn when a <literal>.hi</literal> file in the
1012             current directory shadows a library</entry>
1013             <entry>dynamic</entry>
1014             <entry><option>-fno-warn-hi-shadowing</option></entry>
1015           </row>
1016
1017           <row>
1018             <entry><option>-fwarn-implicit-prelude</option></entry>
1019             <entry>warn when the Prelude is implicitly imported</entry>
1020             <entry>dynamic</entry>
1021             <entry><option>-fno-warn-implicit-prelude</option></entry>
1022           </row>
1023
1024           <row>
1025             <entry><option>-fwarn-incomplete-patterns</option></entry>
1026             <entry>warn when a pattern match could fail</entry>
1027             <entry>dynamic</entry>
1028             <entry><option>-fno-warn-incomplete-patterns</option></entry>
1029           </row>
1030
1031           <row>
1032             <entry><option>-fwarn-incomplete-record-updates</option></entry>
1033             <entry>warn when a record update could fail</entry>
1034             <entry>dynamic</entry>
1035             <entry><option>-fno-warn-incomplete-record-updates</option></entry>
1036           </row>
1037
1038           <row>
1039             <entry><option>-fwarn-missing-fields</option></entry>
1040             <entry>warn when fields of a record are uninitialised</entry>
1041             <entry>dynamic</entry>
1042             <entry><option>-fno-warn-missing-fields</option></entry>
1043           </row>
1044
1045           <row>
1046             <entry><option>-fwarn-missing-methods</option></entry>
1047             <entry>warn when class methods are undefined</entry>
1048             <entry>dynamic</entry>
1049             <entry><option>-fno-warn-missing-methods</option></entry>
1050           </row>
1051
1052           <row>
1053             <entry><option>-fwarn-missing-signatures</option></entry>
1054             <entry>warn about top-level functions without signatures</entry>
1055             <entry>dynamic</entry>
1056             <entry><option>-fno-warn-missing-signatures</option></entry>
1057           </row>
1058
1059           <row>
1060             <entry><option>-fwarn-name-shadowing</option></entry>
1061             <entry>warn when names are shadowed</entry>
1062             <entry>dynamic</entry>
1063             <entry><option>-fno-warn-name-shadowing</option></entry>
1064           </row>
1065
1066           <row>
1067             <entry><option>-fwarn-orphans</option></entry>
1068             <entry>warn when the module contains <link linkend="orphan-modules">orphan instance declarations
1069             or rewrite rules</link></entry>
1070             <entry>dynamic</entry>
1071             <entry><option>-fno-warn-orphans</option></entry>
1072           </row>
1073
1074           <row>
1075             <entry><option>-fwarn-overlapping-patterns</option></entry>
1076             <entry>warn about overlapping patterns</entry>
1077             <entry>dynamic</entry>
1078             <entry><option>-fno-warn-overlapping-patterns</option></entry>
1079           </row>
1080
1081           <row>
1082             <entry><option>-fwarn-simple-patterns</option></entry>
1083             <entry>warn about lambda-patterns that can fail</entry>
1084             <entry>dynamic</entry>
1085             <entry><option>-fno-warn-simple-patterns</option></entry>
1086           </row>
1087
1088           <row>
1089             <entry><option>-fwarn-tabs</option></entry>
1090             <entry>warn if there are tabs in the source file</entry>
1091             <entry>dynamic</entry>
1092             <entry><option>-fno-warn-tabs</option></entry>
1093           </row>
1094
1095           <row>
1096             <entry><option>-fwarn-type-defaults</option></entry>
1097             <entry>warn when defaulting happens</entry>
1098             <entry>dynamic</entry>
1099             <entry><option>-fno-warn-type-defaults</option></entry>
1100           </row>
1101
1102           <row>
1103             <entry><option>-fwarn-monomorphism-restriction</option></entry>
1104             <entry>warn when the Monomorphism Restriction is applied</entry>
1105             <entry>dynamic</entry>
1106             <entry><option>-fno-warn-monomorphism-restriction</option></entry>
1107           </row>
1108
1109           <row>
1110             <entry><option>-fwarn-unused-binds</option></entry>
1111             <entry>warn about bindings that are unused</entry>
1112             <entry>dynamic</entry>
1113             <entry><option>-fno-warn-unused-binds</option></entry>
1114           </row>
1115
1116           <row>
1117             <entry><option>-fwarn-unused-imports</option></entry>
1118             <entry>warn about unnecessary imports</entry>
1119             <entry>dynamic</entry>
1120             <entry><option>-fno-warn-unused-imports</option></entry>
1121           </row>
1122
1123           <row>
1124             <entry><option>-fwarn-unused-matches</option></entry>
1125             <entry>warn about variables in patterns that aren't used</entry>
1126             <entry>dynamic</entry>
1127             <entry><option>-fno-warn-unused-matches</option></entry>
1128           </row>
1129
1130           </tbody>
1131         </tgroup>
1132       </informaltable>
1133
1134     </sect2>
1135     <sect2>
1136       <title>Optimisation levels</title>
1137
1138       <para><xref linkend="options-optimise"/></para>
1139
1140       <informaltable>
1141         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1142           <thead>
1143             <row>
1144               <entry>Flag</entry>
1145               <entry>Description</entry>
1146               <entry>Static/Dynamic</entry>
1147               <entry>Reverse</entry>
1148             </row>
1149           </thead>
1150           <tbody>
1151             <row>
1152               <entry><option>-O</option></entry>
1153               <entry>Enable default optimisation (level 1)</entry>
1154               <entry>dynamic</entry>
1155               <entry><option>-O0</option></entry>
1156             </row>
1157             <row>
1158               <entry><option>-O</option><replaceable>n</replaceable></entry>
1159               <entry>Set optimisation level <replaceable>n</replaceable></entry>
1160               <entry>dynamic</entry>
1161               <entry><option>-O0</option></entry>
1162             </row>
1163           </tbody>
1164         </tgroup>
1165       </informaltable>
1166
1167     </sect2>
1168     <sect2>
1169       <title>Individual optimisations</title>
1170
1171       <para><xref linkend="options-f"/></para>
1172
1173       <informaltable>
1174         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1175           <thead>
1176             <row>
1177               <entry>Flag</entry>
1178               <entry>Description</entry>
1179               <entry>Static/Dynamic</entry>
1180               <entry>Reverse</entry>
1181             </row>
1182           </thead>
1183           <tbody>
1184             <row>
1185               <entry><option>-fcase-merge</option></entry>
1186               <entry>Enable case-merging. Implied by <option>-O</option>.</entry>
1187               <entry>dynamic</entry>
1188               <entry><option>-fno-case-merge</option></entry>
1189             </row>
1190
1191             <row>
1192               <entry><option>-fdicts-strict</option></entry>
1193               <entry>Make dictionaries strict</entry>
1194               <entry>static</entry>
1195               <entry><option>-fno-dicts-strict</option></entry>
1196             </row>
1197
1198             <row>
1199               <entry><option>-fdo-eta-reduction</option></entry>
1200               <entry>Enable eta-reduction. Implied by <option>-O</option>.</entry>
1201               <entry>dynamic</entry>
1202               <entry><option>-fno-do-eta-reduction</option></entry>
1203             </row>
1204
1205             <row>
1206               <entry><option>-fdo-lambda-eta-expansion</option></entry>
1207               <entry>Enable lambda eta-reduction</entry>
1208               <entry>dynamic</entry>
1209               <entry><option>-fno-do-lambda-eta-expansion</option></entry>
1210             </row>
1211
1212             <row>
1213               <entry><option>-fexcess-precision</option></entry>
1214               <entry>Enable excess intermediate precision</entry>
1215               <entry>dynamic</entry>
1216               <entry><option>-fno-excess-precision</option></entry>
1217             </row>
1218
1219             <row>
1220               <entry><option>-fignore-asserts</option></entry>
1221               <entry>Ignore assertions in the source</entry>
1222               <entry>dynamic</entry>
1223               <entry><option>-fno-ignore-asserts</option></entry>
1224             </row>
1225
1226             <row>
1227               <entry><option>-fignore-interface-pragmas</option></entry>
1228               <entry>Ignore pragmas in interface files</entry>
1229               <entry>dynamic</entry>
1230               <entry><option>-fno-ignore-interface-pragmas</option></entry>
1231             </row>
1232
1233             <row>
1234               <entry><option>-fomit-interface-pragmas</option></entry>
1235               <entry>Don't generate interface pragmas</entry>
1236               <entry>dynamic</entry>
1237               <entry><option>-fno-omit-interface-pragmas</option></entry>
1238             </row>
1239
1240             <row>
1241               <entry><option>-fmax-worker-args</option></entry>
1242               <entry>If a worker has that many arguments, none will be
1243                 unpacked anymore (default: 10)</entry>
1244               <entry>static</entry>
1245               <entry>-</entry>
1246             </row>
1247
1248             <row>
1249               <entry><option>-fmax-simplifier-iterations</option></entry>
1250               <entry>Set the max iterations for the simplifier</entry>
1251               <entry>dynamic</entry>
1252               <entry>-</entry>
1253             </row>
1254
1255             <row>
1256               <entry><option>-fno-state-hack</option></entry>
1257               <entry>Turn off the "state hack" whereby any lambda with a real-world state token
1258               as argument is considered to be single-entry.  Hence OK to inline things inside it.</entry>
1259               <entry>static</entry>
1260               <entry>-</entry>
1261             </row>
1262
1263             <row>
1264               <entry><option>-fcse</option></entry>
1265               <entry>Turn on common sub-expression elimination. Implied by <option>-O</option>.</entry>
1266               <entry>dynamic</entry>
1267               <entry>-fno-cse</entry>
1268             </row>
1269
1270             <row>
1271               <entry><option>-ffull-laziness</option></entry>
1272               <entry>Turn on full laziness (floating bindings outwards). Implied by <option>-O</option>.</entry>
1273               <entry>dynamic</entry>
1274               <entry>-fno-full-laziness</entry>
1275             </row>
1276
1277             <row>
1278               <entry><option>-frewrite-rules</option></entry>
1279               <entry>Switch on all rewrite rules (including rules
1280               generated by automatic specialisation of overloaded functions).
1281               Implied by <option>-O</option>. </entry>
1282               <entry>dynamic</entry>
1283               <entry><option>-fno-rewrite-rules</option></entry>
1284             </row>
1285
1286             <row>
1287               <entry><option>-fstrictness</option></entry>
1288               <entry>Turn on strictness analysis. Implied by <option>-O</option>.</entry>
1289               <entry>dynamic</entry>
1290               <entry>-fno-strictness</entry>
1291             </row>
1292
1293             <row>
1294               <entry><option>-fspec-constr</option></entry>
1295               <entry>Turn on the SpecConstr transformation. Implied by <option>-O2</option>.</entry>
1296               <entry>dynamic</entry>
1297               <entry>-fno-spec-constr</entry>
1298             </row>
1299
1300             <row>
1301               <entry><option>-fspec-constr-threshold</option>=<replaceable>n</replaceable></entry>
1302               <entry>Set the size threshold for the SpecConstr transformation to <replaceable>n</replaceable> (default: 200)</entry>
1303               <entry>static</entry>
1304               <entry><option>-fno-spec-constr-threshold</option></entry>
1305             </row>
1306
1307             <row>
1308               <entry><option>-fliberate-case</option></entry>
1309               <entry>Turn on the liberate-case transformation. Implied by <option>-O2</option>.</entry>
1310               <entry>dynamic</entry>
1311               <entry>-fno-liberate-case</entry>
1312             </row>
1313
1314             <row>
1315               <entry><option>-fliberate-case-threshold</option>=<replaceable>n</replaceable></entry>
1316               <entry>Set the size threshold for the liberate-case transformation to <replaceable>n</replaceable> (default: 200)</entry>
1317               <entry>static</entry>
1318               <entry><option>-fno-liberate-case-threshold</option></entry>
1319             </row>
1320
1321             <row>
1322               <entry><option>-funbox-strict-fields</option></entry>
1323               <entry>Flatten strict constructor fields</entry>
1324               <entry>dynamic</entry>
1325               <entry><option>-fno-unbox-strict-fields</option></entry>
1326             </row>
1327
1328             <row>
1329               <entry><option>-funfolding-creation-threshold</option></entry>
1330               <entry>Tweak unfolding settings</entry>
1331               <entry>static</entry>
1332               <entry><option>-fno-unfolding-creation-threshold</option></entry>
1333             </row>
1334
1335             <row>
1336               <entry><option>-funfolding-fun-discount</option></entry>
1337               <entry>Tweak unfolding settings</entry>
1338               <entry>static</entry>
1339               <entry><option>-fno-unfolding-fun-discount</option></entry>
1340             </row>
1341
1342             <row>
1343               <entry><option>-funfolding-keeness-factor</option></entry>
1344               <entry>Tweak unfolding settings</entry>
1345               <entry>static</entry>
1346               <entry><option>-fno-unfolding-keeness-factor</option></entry>
1347             </row>
1348
1349             <row>
1350               <entry><option>-funfolding-update-in-place</option></entry>
1351               <entry>Tweak unfolding settings</entry>
1352               <entry>static</entry>
1353               <entry><option>-fno-unfolding-update-in-place</option></entry>
1354             </row>
1355
1356             <row>
1357               <entry><option>-funfolding-use-threshold</option></entry>
1358               <entry>Tweak unfolding settings</entry>
1359               <entry>static</entry>
1360               <entry><option>-fno-unfolding-use-threshold</option></entry>
1361             </row>
1362
1363             <row>
1364               <entry><option>-fno-pre-inlining</option></entry>
1365               <entry>Turn off pre-inlining</entry>
1366               <entry>static</entry>
1367               <entry>-</entry>
1368             </row>
1369           </tbody>
1370         </tgroup>
1371       </informaltable>
1372     </sect2>
1373
1374     <sect2>
1375       <title>Profiling options</title>
1376
1377       <para><xref linkend="profiling"/></para>
1378
1379       <informaltable>
1380         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1381           <thead>
1382             <row>
1383               <entry>Flag</entry>
1384               <entry>Description</entry>
1385               <entry>Static/Dynamic</entry>
1386               <entry>Reverse</entry>
1387             </row>
1388           </thead>
1389           <tbody>
1390             <row>
1391               <entry><option>-auto</option></entry>
1392               <entry>Auto-add <literal>_scc_</literal>s to all
1393               exported functions</entry>
1394               <entry>static</entry>
1395               <entry><option>-no-auto</option></entry>
1396             </row>
1397             <row>
1398               <entry><option>-auto-all</option></entry>
1399               <entry>Auto-add <literal>_scc_</literal>s to all
1400               top-level functions</entry>
1401               <entry>static</entry>
1402               <entry><option>-no-auto-all</option></entry>
1403             </row>
1404             <row>
1405               <entry><option>-caf-all</option></entry>
1406               <entry>Auto-add <literal>_scc_</literal>s to all CAFs</entry>
1407               <entry>static</entry>
1408               <entry><option>-no-caf-all</option></entry>
1409             </row>
1410             <row>
1411               <entry><option>-prof</option></entry>
1412               <entry>Turn on profiling</entry>
1413               <entry>static</entry>
1414               <entry>-</entry>
1415             </row>
1416             <row>
1417               <entry><option>-ticky</option></entry>
1418               <entry>Turn on ticky-ticky profiling</entry>
1419               <entry>static</entry>
1420               <entry>-</entry>
1421             </row>
1422           </tbody>
1423         </tgroup>
1424       </informaltable>
1425     </sect2>
1426
1427     <sect2>
1428       <title>Program coverage options</title>
1429
1430       <para><xref linkend="hpc"/></para>
1431
1432       <informaltable>
1433         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1434           <thead>
1435             <row>
1436               <entry>Flag</entry>
1437               <entry>Description</entry>
1438               <entry>Static/Dynamic</entry>
1439               <entry>Reverse</entry>
1440             </row>
1441           </thead>
1442           <tbody>
1443             <row>
1444               <entry><option>-fhpc</option></entry>
1445               <entry>Turn on Haskell program coverage instrumentation</entry>
1446               <entry>static</entry>
1447               <entry><option>-</option></entry>
1448             </row>
1449             <row>
1450               <entry><option>-hpcdir dir</option></entry>
1451               <entry>Directory to deposit .mix files during compilation (default is .hpc)</entry>
1452               <entry>dynamic</entry>
1453               <entry><option>-</option></entry>
1454             </row>
1455           </tbody>
1456         </tgroup>
1457       </informaltable>
1458     </sect2>
1459
1460     <sect2>
1461       <title>Haskell pre-processor options</title>
1462
1463       <para><xref linkend="pre-processor"/></para>
1464
1465       <informaltable>
1466         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1467           <thead>
1468             <row>
1469               <entry>Flag</entry>
1470               <entry>Description</entry>
1471               <entry>Static/Dynamic</entry>
1472               <entry>Reverse</entry>
1473             </row>
1474           </thead>
1475           <tbody>
1476             <row>
1477               <entry><option>-F</option></entry>
1478               <entry>
1479                   Enable the use of a pre-processor
1480                   (set with <option>-pgmF</option>)
1481               </entry>
1482               <entry>dynamic</entry>
1483               <entry>-</entry>
1484             </row>
1485           </tbody>
1486         </tgroup>
1487       </informaltable>
1488     </sect2>
1489
1490     <sect2>
1491       <title>C pre-processor options</title>
1492
1493       <para><xref linkend="c-pre-processor"/></para>
1494
1495       <informaltable>
1496         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1497           <thead>
1498             <row>
1499               <entry>Flag</entry>
1500               <entry>Description</entry>
1501               <entry>Static/Dynamic</entry>
1502               <entry>Reverse</entry>
1503             </row>
1504           </thead>
1505           <tbody>
1506             <row>
1507               <entry><option>-cpp</option></entry>
1508               <entry>Run the C pre-processor on Haskell source files</entry>
1509               <entry>dynamic</entry>
1510               <entry>-</entry>
1511             </row>
1512             <row>
1513               <entry><option>-D</option><replaceable>symbol</replaceable><optional>=<replaceable>value</replaceable></optional></entry>
1514               <entry>Define a symbol in the C pre-processor</entry>
1515               <entry>dynamic</entry>
1516               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1517             </row>
1518             <row>
1519               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1520               <entry>Undefine a symbol in the C pre-processor</entry>
1521               <entry>dynamic</entry>
1522               <entry>-</entry>
1523             </row>
1524             <row>
1525               <entry><option>-I</option><replaceable>dir</replaceable></entry>
1526               <entry>Add <replaceable>dir</replaceable> to the
1527               directory search list for <literal>#include</literal> files</entry>
1528               <entry>dynamic</entry>
1529               <entry>-</entry>
1530             </row>
1531           </tbody>
1532         </tgroup>
1533       </informaltable>
1534     </sect2>
1535
1536     <sect2>
1537       <title>C compiler options</title>
1538
1539       <para><xref linkend="options-C-compiler"/></para>
1540       <informaltable>
1541         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1542           <thead>
1543             <row>
1544               <entry>Flag</entry>
1545               <entry>Description</entry>
1546               <entry>Static/Dynamic</entry>
1547               <entry>Reverse</entry>
1548             </row>
1549           </thead>
1550           <tbody>
1551             <row>
1552               <entry><option>-#include</option> <replaceable>file</replaceable></entry>
1553               <entry>Include <replaceable>file</replaceable> when
1554               compiling the <filename>.hc</filename> file</entry>
1555               <entry>dynamic</entry>
1556               <entry>-</entry>
1557             </row>
1558           </tbody>
1559         </tgroup>
1560       </informaltable>
1561     </sect2>
1562
1563     <sect2>
1564       <title>Code generation options</title>
1565
1566       <para><xref linkend="options-codegen"/></para>
1567
1568       <informaltable>
1569         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1570           <thead>
1571             <row>
1572               <entry>Flag</entry>
1573               <entry>Description</entry>
1574               <entry>Static/Dynamic</entry>
1575               <entry>Reverse</entry>
1576             </row>
1577           </thead>
1578           <tbody>
1579             <row>
1580               <entry><option>-fasm</option></entry>
1581               <entry>Use the native code generator</entry>
1582               <entry>dynamic</entry>
1583               <entry>-fvia-C</entry>
1584             </row>
1585             <row>
1586               <entry><option>-fvia-C</option></entry>
1587               <entry>Compile via C</entry>
1588               <entry>dynamic</entry>
1589               <entry>-fasm</entry>
1590             </row>
1591             <row>
1592               <entry><option>-fno-code</option></entry>
1593               <entry>Omit code generation</entry>
1594               <entry>dynamic</entry>
1595               <entry>-</entry>
1596             </row>
1597             <row>
1598               <entry><option>-fbyte-code</option></entry>
1599               <entry>Generate byte-code</entry>
1600               <entry>dynamic</entry>
1601               <entry>-</entry>
1602             </row>
1603             <row>
1604               <entry><option>-fobject-code</option></entry>
1605               <entry>Generate object code</entry>
1606               <entry>dynamic</entry>
1607               <entry>-</entry>
1608             </row>
1609           </tbody>
1610         </tgroup>
1611       </informaltable>
1612     </sect2>
1613
1614     <sect2>
1615       <title>Linking options</title>
1616
1617       <para><xref linkend="options-linker"/></para>
1618
1619       <informaltable>
1620         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1621           <thead>
1622             <row>
1623               <entry>Flag</entry>
1624               <entry>Description</entry>
1625               <entry>Static/Dynamic</entry>
1626               <entry>Reverse</entry>
1627             </row>
1628           </thead>
1629           <tbody>
1630             <row>
1631               <entry><option>-fPIC</option></entry>
1632               <entry>Generate position-independent code (where available)</entry>
1633               <entry>static</entry>
1634               <entry>-</entry>
1635             </row>
1636             <row>
1637               <entry><option>-dynamic</option></entry>
1638               <entry>Use dynamic Haskell libraries (if available)</entry>
1639               <entry>static</entry>
1640               <entry>-</entry>
1641             </row>
1642             <row>
1643               <entry><option>-framework</option> <replaceable>name</replaceable></entry>
1644               <entry>On Darwin/MacOS X only, link in the framework <replaceable>name</replaceable>.
1645                 This option corresponds to the <option>-framework</option> option for Apple's Linker.</entry>
1646               <entry>dynamic</entry>
1647               <entry>-</entry>
1648             </row>
1649             <row>
1650               <entry><option>-framework-path</option> <replaceable>name</replaceable></entry>
1651               <entry>On Darwin/MacOS X only, add <replaceable>dir</replaceable> to the list of
1652                 directories searched for frameworks.
1653                 This option corresponds to the <option>-F</option> option for Apple's Linker.</entry>
1654               <entry>dynamic</entry>
1655               <entry>-</entry>
1656             </row>
1657             <row>
1658               <entry><option>-l</option><replaceable>lib</replaceable></entry>
1659               <entry>Link in library <replaceable>lib</replaceable></entry>
1660               <entry>dynamic</entry>
1661               <entry>-</entry>
1662             </row>
1663             <row>
1664               <entry><option>-L</option><replaceable>dir</replaceable></entry>
1665               <entry>Add <replaceable>dir</replaceable> to the list of
1666               directories searched for libraries</entry>
1667               <entry>dynamic</entry>
1668               <entry>-</entry>
1669             </row>
1670             <row>
1671               <entry><option>-main-is</option></entry>
1672               <entry>Set main module and function</entry>
1673               <entry>dynamic</entry>
1674               <entry>-</entry>
1675             </row>
1676             <row>
1677               <entry><option>--mk-dll</option></entry>
1678               <entry>DLL-creation mode (Windows only)</entry>
1679               <entry>dynamic</entry>
1680               <entry>-</entry>
1681             </row>
1682             <row>
1683               <entry><option>-no-hs-main</option></entry>
1684               <entry>Don't assume this program contains <literal>main</literal></entry>
1685               <entry>dynamic</entry>
1686               <entry>-</entry>
1687             </row>
1688             <row>
1689               <entry><option>-no-link</option></entry>
1690               <entry>Omit linking</entry>
1691               <entry>dynamic</entry>
1692               <entry>-</entry>
1693             </row>
1694             <row>
1695               <entry><option>-split-objs</option></entry>
1696               <entry>Split objects (for libraries)</entry>
1697               <entry>dynamic</entry>
1698               <entry>-</entry>
1699             </row>
1700             <row>
1701               <entry><option>-static</option></entry>
1702               <entry>Use static Haskell libraries</entry>
1703               <entry>static</entry>
1704               <entry>-</entry>
1705             </row>
1706             <row>
1707               <entry><option>-threaded</option></entry>
1708               <entry>Use the threaded runtime</entry>
1709               <entry>static</entry>
1710               <entry>-</entry>
1711             </row>
1712             <row>
1713               <entry><option>-debug</option></entry>
1714               <entry>Use the debugging runtime</entry>
1715               <entry>static</entry>
1716               <entry>-</entry>
1717             </row>
1718             <row>
1719               <entry><option>-fno-gen-manifest</option></entry>
1720               <entry>Do not generate a manifest file (Windows only)</entry>
1721               <entry>dynamic</entry>
1722               <entry>-</entry>
1723             </row>
1724             <row>
1725               <entry><option>-fno-embed-manifest</option></entry>
1726               <entry>Do not embed the manifest in the executable (Windows only)</entry>
1727               <entry>dynamic</entry>
1728               <entry>-</entry>
1729             </row>
1730           </tbody>
1731         </tgroup>
1732       </informaltable>
1733     </sect2>
1734
1735     <sect2>
1736       <title>Replacing phases</title>
1737
1738       <para><xref linkend="replacing-phases"/></para>
1739
1740       <informaltable>
1741         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1742           <thead>
1743             <row>
1744               <entry>Flag</entry>
1745               <entry>Description</entry>
1746               <entry>Static/Dynamic</entry>
1747               <entry>Reverse</entry>
1748             </row>
1749           </thead>
1750           <tbody>
1751             <row>
1752               <entry><option>-pgmL</option> <replaceable>cmd</replaceable></entry>
1753               <entry>Use <replaceable>cmd</replaceable> as the literate pre-processor</entry>
1754               <entry>dynamic</entry>
1755               <entry>-</entry>
1756             </row>
1757             <row>
1758               <entry><option>-pgmP</option> <replaceable>cmd</replaceable></entry>
1759               <entry>Use <replaceable>cmd</replaceable> as the C
1760               pre-processor (with <option>-cpp</option> only)</entry>
1761               <entry>dynamic</entry>
1762               <entry>-</entry>
1763             </row>
1764             <row>
1765               <entry><option>-pgmc</option> <replaceable>cmd</replaceable></entry>
1766               <entry>Use <replaceable>cmd</replaceable> as the C compiler</entry>
1767               <entry>dynamic</entry>
1768               <entry>-</entry>
1769             </row>
1770             <row>
1771               <entry><option>-pgmm</option> <replaceable>cmd</replaceable></entry>
1772               <entry>Use <replaceable>cmd</replaceable> as the mangler</entry>
1773               <entry>dynamic</entry>
1774               <entry>-</entry>
1775             </row>
1776             <row>
1777               <entry><option>-pgms</option> <replaceable>cmd</replaceable></entry>
1778               <entry>Use <replaceable>cmd</replaceable> as the splitter</entry>
1779               <entry>dynamic</entry>
1780               <entry>-</entry>
1781             </row>
1782             <row>
1783               <entry><option>-pgma</option> <replaceable>cmd</replaceable></entry>
1784               <entry>Use <replaceable>cmd</replaceable> as the assembler</entry>
1785               <entry>dynamic</entry>
1786               <entry>-</entry>
1787             </row>
1788             <row>
1789               <entry><option>-pgml</option> <replaceable>cmd</replaceable></entry>
1790               <entry>Use <replaceable>cmd</replaceable> as the linker</entry>
1791               <entry>dynamic</entry>
1792               <entry>-</entry>
1793             </row>
1794             <row>
1795               <entry><option>-pgmdll</option> <replaceable>cmd</replaceable></entry>
1796               <entry>Use <replaceable>cmd</replaceable> as the DLL generator</entry>
1797               <entry>dynamic</entry>
1798               <entry>-</entry>
1799             </row>
1800             <row>
1801               <entry><option>-pgmF</option> <replaceable>cmd</replaceable></entry>
1802               <entry>Use <replaceable>cmd</replaceable> as the pre-processor
1803               (with <option>-F</option> only)</entry>
1804               <entry>dynamic</entry>
1805               <entry>-</entry>
1806             </row>
1807             <row>
1808               <entry><option>-pgmwindres</option> <replaceable>cmd</replaceable></entry>
1809               <entry>Use <replaceable>cmd</replaceable> as the program for
1810                 embedding manifests on Windows.</entry>
1811               <entry>dynamic</entry>
1812               <entry>-</entry>
1813             </row>
1814           </tbody>
1815         </tgroup>
1816       </informaltable>
1817       <indexterm><primary><option>-pgmL</option></primary></indexterm>
1818       <indexterm><primary><option>-pgmP</option></primary></indexterm>
1819       <indexterm><primary><option>-pgmc</option></primary></indexterm>
1820       <indexterm><primary><option>-pgma</option></primary></indexterm>
1821       <indexterm><primary><option>-pgml</option></primary></indexterm>
1822       <indexterm><primary><option>-pgmdll</option></primary></indexterm>
1823       <indexterm><primary><option>-pgmF</option></primary></indexterm>
1824
1825     </sect2>
1826
1827     <sect2>
1828       <title>Forcing options to particular phases</title>
1829
1830       <para><xref linkend="forcing-options-through"/></para>
1831
1832       <informaltable>
1833         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1834           <thead>
1835             <row>
1836               <entry>Flag</entry>
1837               <entry>Description</entry>
1838               <entry>Static/Dynamic</entry>
1839               <entry>Reverse</entry>
1840             </row>
1841           </thead>
1842           <tbody>
1843             <row>
1844               <entry><option>-optL</option> <replaceable>option</replaceable></entry>
1845               <entry>pass <replaceable>option</replaceable> to the literate pre-processor</entry>
1846               <entry>dynamic</entry>
1847               <entry>-</entry>
1848             </row>
1849             <row>
1850               <entry><option>-optP</option> <replaceable>option</replaceable></entry>
1851               <entry>pass <replaceable>option</replaceable> to cpp (with
1852               <option>-cpp</option> only)</entry>
1853               <entry>dynamic</entry>
1854               <entry>-</entry>
1855             </row>
1856             <row>
1857               <entry><option>-optF</option> <replaceable>option</replaceable></entry>
1858               <entry>pass <replaceable>option</replaceable> to the
1859               custom pre-processor</entry>
1860               <entry>dynamic</entry>
1861               <entry>-</entry>
1862             </row>
1863             <row>
1864               <entry><option>-optc</option> <replaceable>option</replaceable></entry>
1865               <entry>pass <replaceable>option</replaceable> to the C compiler</entry>
1866               <entry>dynamic</entry>
1867               <entry>-</entry>
1868             </row>
1869             <row>
1870               <entry><option>-optm</option> <replaceable>option</replaceable></entry>
1871               <entry>pass <replaceable>option</replaceable> to the mangler</entry>
1872               <entry>dynamic</entry>
1873               <entry>-</entry>
1874             </row>
1875             <row>
1876               <entry><option>-opta</option> <replaceable>option</replaceable></entry>
1877               <entry>pass <replaceable>option</replaceable> to the assembler</entry>
1878               <entry>dynamic</entry>
1879               <entry>-</entry>
1880             </row>
1881             <row>
1882               <entry><option>-optl</option> <replaceable>option</replaceable></entry>
1883               <entry>pass <replaceable>option</replaceable> to the linker</entry>
1884               <entry>dynamic</entry>
1885               <entry>-</entry>
1886             </row>
1887             <row>
1888               <entry><option>-optdll</option> <replaceable>option</replaceable></entry>
1889               <entry>pass <replaceable>option</replaceable> to the DLL generator</entry>
1890               <entry>dynamic</entry>
1891               <entry>-</entry>
1892             </row>
1893             <row>
1894               <entry><option>-optdep</option> <replaceable>option</replaceable></entry>
1895               <entry>pass <replaceable>option</replaceable> to the dependency generator</entry>
1896               <entry>dynamic</entry>
1897               <entry>-</entry>
1898             </row>
1899             <row>
1900               <entry><option>-optwindres</option> <replaceable>option</replaceable></entry>
1901               <entry>pass <replaceable>option</replaceable> to <literal>windres</literal>.</entry>
1902               <entry>dynamic</entry>
1903               <entry>-</entry>
1904             </row>
1905           </tbody>
1906         </tgroup>
1907       </informaltable>
1908     </sect2>
1909
1910     <sect2>
1911       <title>Platform-specific options</title>
1912
1913       <para><xref linkend="options-platform"/></para>
1914
1915       <informaltable>
1916         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1917           <thead>
1918             <row>
1919               <entry>Flag</entry>
1920               <entry>Description</entry>
1921               <entry>Static/Dynamic</entry>
1922               <entry>Reverse</entry>
1923             </row>
1924           </thead>
1925           <tbody>
1926             <row>
1927               <entry><option>-monly-[432]-regs</option></entry>
1928               <entry>(x86 only) give some registers back to the C compiler</entry>
1929               <entry>dynamic</entry>
1930               <entry>-</entry>
1931             </row>
1932           </tbody>
1933         </tgroup>
1934       </informaltable>
1935     </sect2>
1936
1937
1938     <sect2>
1939       <title>External core file options</title>
1940
1941       <para><xref linkend="ext-core"/></para>
1942
1943       <informaltable>
1944         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1945           <thead>
1946             <row>
1947               <entry>Flag</entry>
1948               <entry>Description</entry>
1949               <entry>Static/Dynamic</entry>
1950               <entry>Reverse</entry>
1951             </row>
1952           </thead>
1953           <tbody>
1954             <row>
1955               <entry><option>-fext-core</option></entry>
1956               <entry>Generate <filename>.hcr</filename> external Core files</entry>
1957               <entry>static</entry>
1958               <entry>-</entry>
1959             </row>
1960           </tbody>
1961         </tgroup>
1962       </informaltable>
1963     </sect2>
1964
1965
1966     <sect2>
1967       <title>Compiler debugging options</title>
1968
1969       <para><xref linkend="options-debugging"/></para>
1970
1971       <informaltable>
1972         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1973           <thead>
1974             <row>
1975               <entry>Flag</entry>
1976               <entry>Description</entry>
1977               <entry>Static/Dynamic</entry>
1978               <entry>Reverse</entry>
1979             </row>
1980           </thead>
1981           <tbody>
1982             <row>
1983               <entry><option>-dcore-lint</option></entry>
1984               <entry>Turn on internal sanity checking</entry>
1985               <entry>dynamic</entry>
1986               <entry>-</entry>
1987             </row>
1988             <row>
1989               <entry><option>-ddump-asm</option></entry>
1990               <entry>Dump assembly</entry>
1991               <entry>dynamic</entry>
1992               <entry>-</entry>
1993             </row>
1994             <row>
1995               <entry><option>-ddump-bcos</option></entry>
1996               <entry>Dump interpreter byte code</entry>
1997               <entry>dynamic</entry>
1998               <entry>-</entry>
1999             </row>
2000             <row>
2001               <entry><option>-ddump-cmm</option></entry>
2002               <entry>Dump C-- output</entry>
2003               <entry>dynamic</entry>
2004               <entry>-</entry>
2005             </row>
2006             <row>
2007               <entry><option>-ddump-cpranal</option></entry>
2008               <entry>Dump output from CPR analysis</entry>
2009               <entry>dynamic</entry>
2010               <entry>-</entry>
2011             </row>
2012             <row>
2013               <entry><option>-ddump-cse</option></entry>
2014               <entry>Dump CSE output</entry>
2015               <entry>dynamic</entry>
2016               <entry>-</entry>
2017             </row>
2018             <row>
2019               <entry><option>-ddump-deriv</option></entry>
2020               <entry>Dump deriving output</entry>
2021               <entry>dynamic</entry>
2022               <entry>-</entry>
2023             </row>
2024             <row>
2025               <entry><option>-ddump-ds</option></entry>
2026               <entry>Dump desugarer output</entry>
2027               <entry>dynamic</entry>
2028               <entry>-</entry>
2029             </row>
2030             <row>
2031               <entry><option>-ddump-flatC</option></entry>
2032               <entry>Dump &ldquo;flat&rdquo; C</entry>
2033               <entry>dynamic</entry>
2034               <entry>-</entry>
2035             </row>
2036             <row>
2037               <entry><option>-ddump-foreign</option></entry>
2038               <entry>Dump <literal>foreign export</literal> stubs</entry>
2039               <entry>dynamic</entry>
2040               <entry>-</entry>
2041             </row>
2042             <row>
2043               <entry><option>-ddump-hpc</option></entry>
2044               <entry>Dump after instrumentation for program coverage</entry>
2045               <entry>dynamic</entry>
2046               <entry>-</entry>
2047             </row>
2048             <row>
2049               <entry><option>-ddump-inlinings</option></entry>
2050               <entry>Dump inlining info</entry>
2051               <entry>dynamic</entry>
2052               <entry>-</entry>
2053             </row>
2054             <row>
2055               <entry><option>-ddump-occur-anal</option></entry>
2056               <entry>Dump occurrence analysis output</entry>
2057               <entry>dynamic</entry>
2058               <entry>-</entry>
2059             </row>
2060             <row>
2061               <entry><option>-ddump-opt-cmm</option></entry>
2062               <entry>Dump the results of C-- to C-- optimising passes</entry>
2063               <entry>dynamic</entry>
2064               <entry>-</entry>
2065             </row>
2066             <row>
2067               <entry><option>-ddump-parsed</option></entry>
2068               <entry>Dump parse tree</entry>
2069               <entry>dynamic</entry>
2070               <entry>-</entry>
2071             </row>
2072             <row>
2073               <entry><option>-ddump-prep</option></entry>
2074               <entry>Dump prepared core</entry>
2075               <entry>dynamic</entry>
2076               <entry>-</entry>
2077             </row>
2078             <row>
2079               <entry><option>-ddump-rn</option></entry>
2080               <entry>Dump renamer output</entry>
2081               <entry>dynamic</entry>
2082               <entry>-</entry>
2083             </row>
2084             <row>
2085               <entry><option>-ddump-rules</option></entry>
2086               <entry>Dump rules</entry>
2087               <entry>dynamic</entry>
2088               <entry>-</entry>
2089             </row>
2090             <row>
2091               <entry><option>-ddump-simpl</option></entry>
2092               <entry>Dump final simplifier output</entry>
2093               <entry>dynamic</entry>
2094               <entry>-</entry>
2095             </row>
2096             <row>
2097               <entry><option>-ddump-simpl-phases</option></entry>
2098               <entry>Dump output from each simplifier phase</entry>
2099               <entry>dynamic</entry>
2100               <entry>-</entry>
2101             </row>
2102             <row>
2103               <entry><option>-ddump-simpl-iterations</option></entry>
2104               <entry>Dump output from each simplifier iteration</entry>
2105               <entry>dynamic</entry>
2106               <entry>-</entry>
2107             </row>
2108             <row>
2109               <entry><option>-ddump-spec</option></entry>
2110               <entry>Dump specialiser output</entry>
2111               <entry>dynamic</entry>
2112               <entry>-</entry>
2113             </row>
2114             <row>
2115               <entry><option>-ddump-splices</option></entry>
2116               <entry>Dump TH spliced expressions, and what they evaluate to</entry>
2117               <entry>dynamic</entry>
2118               <entry>-</entry>
2119             </row>
2120             <row>
2121               <entry><option>-ddump-stg</option></entry>
2122               <entry>Dump final STG</entry>
2123               <entry>dynamic</entry>
2124               <entry>-</entry>
2125             </row>
2126             <row>
2127               <entry><option>-ddump-stranal</option></entry>
2128               <entry>Dump strictness analyser output</entry>
2129               <entry>dynamic</entry>
2130               <entry>-</entry>
2131             </row>
2132             <row>
2133               <entry><option>-ddump-tc</option></entry>
2134               <entry>Dump typechecker output</entry>
2135               <entry>dynamic</entry>
2136               <entry>-</entry>
2137             </row>
2138             <row>
2139               <entry><option>-ddump-types</option></entry>
2140               <entry>Dump type signatures</entry>
2141               <entry>dynamic</entry>
2142               <entry>-</entry>
2143             </row>
2144             <row>
2145               <entry><option>-ddump-worker-wrapper</option></entry>
2146               <entry>Dump worker-wrapper output</entry>
2147               <entry>dynamic</entry>
2148               <entry>-</entry>
2149             </row>
2150             <row>
2151               <entry><option>-ddump-if-trace</option></entry>
2152               <entry>Trace interface files</entry>
2153               <entry>dynamic</entry>
2154               <entry>-</entry>
2155             </row>
2156             <row>
2157               <entry><option>-ddump-tc-trace</option></entry>
2158               <entry>Trace typechecker</entry>
2159               <entry>dynamic</entry>
2160               <entry>-</entry>
2161             </row>
2162             <row>
2163               <entry><option>-ddump-rn-trace</option></entry>
2164               <entry>Trace renamer</entry>
2165               <entry>dynamic</entry>
2166               <entry>-</entry>
2167             </row>
2168             <row>
2169               <entry><option>-ddump-rn-stats</option></entry>
2170               <entry>Renamer stats</entry>
2171               <entry>dynamic</entry>
2172               <entry>-</entry>
2173             </row>
2174             <row>
2175               <entry><option>-ddump-simpl-stats</option></entry>
2176               <entry>Dump simplifier stats</entry>
2177               <entry>dynamic</entry>
2178               <entry>-</entry>
2179             </row>
2180             <row>
2181               <entry><option>-dppr-debug</option></entry>
2182               <entry>Turn on debug printing (more verbose)</entry>
2183               <entry>static</entry>
2184               <entry>-</entry>
2185             </row>
2186             <row>
2187               <entry><option>-dppr-noprags</option></entry>
2188               <entry>Don't output pragma info in dumps</entry>
2189               <entry>static</entry>
2190               <entry>-</entry>
2191             </row>
2192             <row>
2193               <entry><option>-dppr-user-length</option></entry>
2194               <entry>Set the depth for printing expressions in error msgs</entry>
2195               <entry>static</entry>
2196               <entry>-</entry>
2197             </row>
2198             <row>
2199               <entry><option>-dsource-stats</option></entry>
2200               <entry>Dump haskell source stats</entry>
2201               <entry>dynamic</entry>
2202               <entry>-</entry>
2203             </row>
2204             <row>
2205               <entry><option>-dcmm-lint</option></entry>
2206               <entry>C-- pass sanity checking</entry>
2207               <entry>dynamic</entry>
2208               <entry>-</entry>
2209             </row>
2210             <row>
2211               <entry><option>-dstg-lint</option></entry>
2212               <entry>STG pass sanity checking</entry>
2213               <entry>dynamic</entry>
2214               <entry>-</entry>
2215             </row>
2216             <row>
2217               <entry><option>-dstg-stats</option></entry>
2218               <entry>Dump STG stats</entry>
2219               <entry>dynamic</entry>
2220               <entry>-</entry>
2221             </row>
2222             <row>
2223               <entry><option>-dverbose-core2core</option></entry>
2224               <entry>Show output from each core-to-core pass</entry>
2225               <entry>dynamic</entry>
2226               <entry>-</entry>
2227             </row>
2228             <row>
2229               <entry><option>-dverbose-stg2stg</option></entry>
2230               <entry>Show output from each STG-to-STG pass</entry>
2231               <entry>dynamic</entry>
2232               <entry>-</entry>
2233             </row>
2234             <row>
2235               <entry><option>-dshow-passes</option></entry>
2236               <entry>Print out each pass name as it happens</entry>
2237               <entry>dynamic</entry>
2238               <entry>-</entry>
2239             </row>
2240             <row>
2241               <entry><option>-dfaststring-stats</option></entry>
2242               <entry>Show statistics for fast string usage when finished</entry>
2243               <entry>dynamic</entry>
2244               <entry>-</entry>
2245             </row>
2246           </tbody>
2247         </tgroup>
2248       </informaltable>
2249     </sect2>
2250
2251     <sect2>
2252       <title>Misc compiler options</title>
2253
2254       <informaltable>
2255         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2256           <thead>
2257             <row>
2258               <entry>Flag</entry>
2259               <entry>Description</entry>
2260               <entry>Static/Dynamic</entry>
2261               <entry>Reverse</entry>
2262             </row>
2263           </thead>
2264           <tbody>
2265             <row>
2266               <entry><option>-fno-hi-version-check</option></entry>
2267               <entry>Don't complain about <literal>.hi</literal> file mismatches</entry>
2268               <entry>static</entry>
2269               <entry>-</entry>
2270             </row>
2271             <row>
2272               <entry><option>-dno-black-holing</option></entry>
2273               <entry>Turn off black holing (probably doesn't work)</entry>
2274               <entry>static</entry>
2275               <entry>-</entry>
2276             </row>
2277             <row>
2278               <entry><option>-fno-method-sharing</option></entry>
2279               <entry>Don't share specialisations of overloaded functions</entry>
2280               <entry>static</entry>
2281               <entry>-</entry>
2282             </row>
2283             <row>
2284               <entry><option>-fhistory-size</option></entry>
2285               <entry>Set simplification history size</entry>
2286               <entry>static</entry>
2287               <entry>-</entry>
2288             </row>
2289             <row>
2290               <entry><option>-funregisterised</option></entry>
2291               <entry>Unregisterised compilation (use <option>-unreg</option> instead)</entry>
2292               <entry>static</entry>
2293               <entry>-</entry>
2294             </row>
2295             <row>
2296               <entry><option>-fno-asm-mangling</option></entry>
2297               <entry>Turn off assembly mangling (use <option>-unreg</option> instead)</entry>
2298               <entry>dynamic</entry>
2299               <entry>-</entry>
2300             </row>
2301           </tbody>
2302         </tgroup>
2303       </informaltable>
2304     </sect2>
2305   </sect1>
2306
2307
2308 <!--
2309 Still to document:
2310
2311 Misc:
2312   ,  ( "H"                 , HasArg (setHeapSize . fromIntegral . decodeSize) )
2313
2314   -Bdir
2315 -->
2316
2317 <!-- Emacs stuff:
2318      ;;; Local Variables: ***
2319      ;;; mode: xml ***
2320      ;;; sgml-parent-document: ("users_guide.xml" "book" "chapter") ***
2321      ;;; End: ***
2322  -->