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 directory for object files</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             <row>
 280               <entry><option>-outputdir</option> <replaceable>dir</replaceable></entry>
 281               <entry>set output directory</entry>
 282               <entry>dynamic</entry>
 283               <entry>-</entry>
 284             </row>
 285           </tbody>
 286         </tgroup>
 287       </informaltable>
 288     </sect2>
 289
 290     <sect2>
 291       <title>Keeping intermediate files</title>
 292
 293       <para><xref linkend="keeping-intermediates"/></para>
 294
 295       <informaltable>
 296         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 297           <thead>
 298             <row>
 299               <entry>Flag</entry>
 300               <entry>Description</entry>
 301               <entry>Static/Dynamic</entry>
 302               <entry>Reverse</entry>
 303             </row>
 304           </thead>
 305           <tbody>
 306             <row>
 307               <entry><option>-keep-hc-file</option> or
 308                  <option>-keep-hc-files</option></entry>
 309               <entry>retain intermediate <literal>.hc</literal> files</entry>
 310               <entry>dynamic</entry>
 311               <entry>-</entry>
 312             </row>
 313             <row>
 314               <entry><option>-keep-s-file</option> or
 315                  <option>-keep-s-files</option></entry>
 316               <entry>retain intermediate <literal>.s</literal> files</entry>
 317               <entry>dynamic</entry>
 318               <entry>-</entry>
 319             </row>
 320             <row>
 321               <entry><option>-keep-raw-s-file</option> or
 322                  <option>-keep-raw-s-files</option></entry>
 323               <entry>retain intermediate <literal>.raw_s</literal> files</entry>
 324               <entry>dynamic</entry>
 325               <entry>-</entry>
 326             </row>
 327             <row>
 328               <entry><option>-keep-tmp-files</option></entry>
 329               <entry>retain all intermediate temporary files</entry>
 330               <entry>dynamic</entry>
 331               <entry>-</entry>
 332             </row>
 333           </tbody>
 334         </tgroup>
 335       </informaltable>
 336     </sect2>
 337
 338     <sect2>
 339       <title>Temporary files</title>
 340
 341       <para><xref linkend="temp-files"/></para>
 342
 343       <informaltable>
 344         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 345           <thead>
 346             <row>
 347               <entry>Flag</entry>
 348               <entry>Description</entry>
 349               <entry>Static/Dynamic</entry>
 350               <entry>Reverse</entry>
 351             </row>
 352           </thead>
 353           <tbody>
 354             <row>
 355               <entry><option>-tmpdir</option></entry>
 356               <entry>set the directory for temporary files</entry>
 357               <entry>dynamic</entry>
 358               <entry>-</entry>
 359             </row>
 360           </tbody>
 361         </tgroup>
 362       </informaltable>
 363     </sect2>
 364
 365     <sect2>
 366       <title>Finding imports</title>
 367
 368       <para><xref linkend="search-path"/></para>
 369
 370       <informaltable>
 371         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 372           <thead>
 373             <row>
 374               <entry>Flag</entry>
 375
 376               <entry>Description</entry>
 377               <entry>Static/Dynamic</entry>
 378               <entry>Reverse</entry>
 379             </row>
 380           </thead>
 381           <tbody>
 382             <row>
 383               <entry><option>-i</option><replaceable>dir1</replaceable>:<replaceable>dir2</replaceable>:...</entry>
 384               <entry>add <replaceable>dir</replaceable>,
 385                   <replaceable>dir2</replaceable>, etc. to import path</entry>
 386               <entry>static/<literal>:set</literal></entry>
 387               <entry>-</entry>
 388             </row>
 389             <row>
 390               <entry><option>-i</option></entry>
 391               <entry>Empty the import directory list</entry>
 392               <entry>static/<literal>:set</literal></entry>
 393               <entry>-</entry>
 394             </row>
 395           </tbody>
 396         </tgroup>
 397       </informaltable>
 398     </sect2>
 399
 400     <sect2>
 401       <title>Interface file options</title>
 402
 403       <para><xref linkend="hi-options"/></para>
 404
 405       <informaltable>
 406         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 407           <thead>
 408             <row>
 409               <entry>Flag</entry>
 410
 411               <entry>Description</entry>
 412               <entry>Static/Dynamic</entry>
 413               <entry>Reverse</entry>
 414             </row>
 415           </thead>
 416           <tbody>
 417             <row>
 418               <entry><option>-ddump-hi</option></entry>
 419               <entry>Dump the new interface to stdout</entry>
 420               <entry>dynamic</entry>
 421               <entry>-</entry>
 422             </row>
 423             <row>
 424               <entry><option>-ddump-hi-diffs</option></entry>
 425               <entry>Show the differences vs. the old interface</entry>
 426               <entry>dynamic</entry>
 427               <entry>-</entry>
 428             </row>
 429             <row>
 430               <entry><option>-ddump-minimal-imports</option></entry>
 431               <entry>Dump a minimal set of imports</entry>
 432               <entry>dynamic</entry>
 433               <entry>-</entry>
 434             </row>
 435             <row>
 436               <entry><option>--show-iface</option> <replaceable>file</replaceable></entry>
 437               <entry>See <xref linkend="modes"/>.</entry>
 438             </row>
 439           </tbody>
 440         </tgroup>
 441       </informaltable>
 442     </sect2>
 443
 444     <sect2>
 445       <title>Recompilation checking</title>
 446
 447       <para><xref linkend="recomp"/></para>
 448
 449       <informaltable>
 450         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 451           <thead>
 452             <row>
 453               <entry>Flag</entry>
 454
 455               <entry>Description</entry>
 456               <entry>Static/Dynamic</entry>
 457               <entry>Reverse</entry>
 458             </row>
 459           </thead>
 460           <tbody>
 461             <row>
 462               <entry><option>-fforce-recomp</option></entry>
 463               <entry>Turn off recompilation checking; implied by any
 464               <option>-ddump-X</option> option</entry>
 465               <entry>dynamic</entry>
 466               <entry><option>-fno-force-recomp</option></entry>
 467             </row>
 468           </tbody>
 469         </tgroup>
 470       </informaltable>
 471     </sect2>
 472
 473     <sect2 id="interactive-mode-options">
 474       <title>Interactive-mode options</title>
 475
 476       <para><xref linkend="ghci-dot-files"/></para>
 477
 478       <informaltable>
 479         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 480           <thead>
 481             <row>
 482               <entry>Flag</entry>
 483               <entry>Description</entry>
 484               <entry>Static/Dynamic</entry>
 485               <entry>Reverse</entry>
 486             </row>
 487           </thead>
 488           <tbody>
 489             <row>
 490               <entry><option>-ignore-dot-ghci</option></entry>
 491               <entry>Disable reading of <filename>.ghci</filename> files</entry>
 492               <entry>static</entry>
 493               <entry>-</entry>
 494             </row>
 495             <row>
 496               <entry><option>-read-dot-ghci</option></entry>
 497               <entry>Enable reading of <filename>.ghci</filename> files</entry>
 498               <entry>static</entry>
 499               <entry>-</entry>
 500             </row>
 501             <row>
 502               <entry><option>-fbreak-on-exception</option></entry>
 503               <entry><link linkend="ghci-debugger-exceptions">Break on any exception thrown</link></entry>
 504               <entry>dynamic</entry>
 505               <entry><option>-fno-break-on-exception</option></entry>
 506             </row>
 507             <row>
 508               <entry><option>-fbreak-on-error</option></entry>
 509               <entry><link linkend="ghci-debugger-exceptions">Break on uncaught exceptions and errors</link></entry>
 510               <entry>dynamic</entry>
 511               <entry><option>-fno-break-on-error</option></entry>
 512             </row>
 513             <row>
 514               <entry><option>-fprint-evld-with-show</option></entry>
 515               <entry><link linkend="breakpoints">Enable usage of Show instances in <literal>:print</literal></link></entry>
 516               <entry>dynamic</entry>
 517               <entry><option>-fno-print-evld-with-show</option></entry>
 518             </row>
 519             <row>
 520               <entry><option>-fprint-bind-result</option></entry>
 521               <entry><link linkend="ghci-stmts">Turn on printing of binding results in GHCi</link></entry>
 522               <entry>dynamic</entry>
 523               <entry><option>-fno-print-bind-result</option></entry>
 524             </row>
 525             <row>
 526               <entry><option>-fno-print-bind-contents</option></entry>
 527               <entry><link linkend="breakpoints">Turn off printing of binding contents in GHCi</link></entry>
 528               <entry>dynamic</entry>
 529               <entry>-</entry>
 530             </row>
 531             <row>
 532               <entry><option>-fno-implicit-import-qualified</option></entry>
 533               <entry><link linkend="ghci-import-qualified">Turn off
 534               implicit qualified import of everything in GHCi</link></entry>
 535               <entry>dynamic</entry>
 536               <entry>-</entry>
 537             </row>
 538
 539           </tbody>
 540         </tgroup>
 541       </informaltable>
 542     </sect2>
 543
 544     <sect2>
 545       <title>Packages</title>
 546
 547       <para><xref linkend="packages"/></para>
 548
 549       <informaltable>
 550         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 551           <thead>
 552             <row>
 553               <entry>Flag</entry>
 554               <entry>Description</entry>
 555               <entry>Static/Dynamic</entry>
 556               <entry>Reverse</entry>
 557             </row>
 558           </thead>
 559           <tbody>
 560             <row>
 561               <entry><option>-package-name</option> <replaceable>P</replaceable></entry>
 562               <entry>Compile to be part of package <replaceable>P</replaceable></entry>
 563               <entry>dynamic</entry>
 564               <entry>-</entry>
 565             </row>
 566             <row>
 567               <entry><option>-package</option> <replaceable>P</replaceable></entry>
 568               <entry>Expose package <replaceable>P</replaceable></entry>
 569               <entry>static/<literal>:set</literal></entry>
 570               <entry>-</entry>
 571             </row>
 572             <row>
 573               <entry><option>-hide-all-packages</option></entry>
 574               <entry>Hide all packages by default</entry>
 575               <entry>static</entry>
 576               <entry>-</entry>
 577             </row>
 578             <row>
 579               <entry><option>-hide-package</option> <replaceable>name</replaceable></entry>
 580               <entry>Hide package <replaceable>P</replaceable></entry>
 581               <entry>static/<literal>:set</literal></entry>
 582               <entry>-</entry>
 583             </row>
 584             <row>
 585               <entry><option>-ignore-package</option> <replaceable>name</replaceable></entry>
 586               <entry>Ignore package <replaceable>P</replaceable></entry>
 587               <entry>static/<literal>:set</literal></entry>
 588               <entry>-</entry>
 589             </row>
 590             <row>
 591               <entry><option>-package-conf</option> <replaceable>file</replaceable></entry>
 592               <entry>Load more packages from <replaceable>file</replaceable></entry>
 593               <entry>static</entry>
 594               <entry>-</entry>
 595             </row>
 596             <row>
 597               <entry><option>-no-user-package-conf</option></entry>
 598               <entry>Don't load the user's package config file.</entry>
 599               <entry>static</entry>
 600               <entry>-</entry>
 601             </row>
 602           </tbody>
 603         </tgroup>
 604       </informaltable>
 605     </sect2>
 606
 607     <sect2>
 608       <title>Language options</title>
 609
 610       <para><xref linkend="options-language"/></para>
 611
 612       <informaltable>
 613         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 614           <thead>
 615             <row>
 616               <entry>Flag</entry>
 617               <entry>Description</entry>
 618               <entry>Static/Dynamic</entry>
 619               <entry>Reverse</entry>
 620             </row>
 621           </thead>
 622           <tbody>
 623             <row>
 624               <entry><option>-fglasgow-exts</option></entry>
 625               <entry>Enable most language extensions</entry>
 626               <entry>dynamic</entry>
 627               <entry><option>-fno-glasgow-exts</option></entry>
 628             </row>
 629             <row>
 630               <entry><option>-XOverlappingInstances</option></entry>
 631               <entry>Enable <link linkend="instance-overlap">overlapping instances</link></entry>
 632               <entry>dynamic</entry>
 633               <entry><option>-XNoOverlappingInstances</option></entry>
 634             </row>
 635             <row>
 636               <entry><option>-XIncoherentInstances</option></entry>
 637               <entry>Enable <link linkend="instance-overlap">incoherent instances</link>.
 638               Implies <option>-XOverlappingInstances</option> </entry>
 639               <entry>dynamic</entry>
 640               <entry><option>-XNoIncoherentInstances</option></entry>
 641             </row>
 642             <row>
 643               <entry><option>-XUndecidableInstances</option></entry>
 644               <entry>Enable <link linkend="undecidable-instances">undecidable instances</link></entry>
 645               <entry>dynamic</entry>
 646               <entry><option>-XNoUndecidableInstances</option></entry>
 647             </row>
 648             <row>
 649               <entry><option>-fcontext-stack=N</option><replaceable>n</replaceable></entry>
 650               <entry>set the <link linkend="undecidable-instances">limit for context reduction</link>. Default is 20.</entry>
 651               <entry>dynamic</entry>
 652               <entry></entry>
 653             </row>
 654             <row>
 655               <entry><option>-XArrows</option></entry>
 656               <entry>Enable <link linkend="arrow-notation">arrow
 657               notation</link> extension</entry>
 658               <entry>dynamic</entry>
 659               <entry><option>-XNoArrows</option></entry>
 660             </row>
 661             <row>
 662               <entry><option>-XDisambiguateRecordFields</option></entry>
 663               <entry>Enable <link linkend="disambiguate-fields">record
 664               field disambiguation</link></entry>
 665               <entry>dynamic</entry>
 666               <entry><option>-XNoDisambiguateRecordFields</option></entry>
 667             </row>
 668             <row>
 669               <entry><option>-XForeignFunctionInterface</option></entry>
 670               <entry>Enable <link linkend="ffi">foreign function interface</link> (implied by
 671               <option>-fglasgow-exts</option>)</entry>
 672               <entry>dynamic</entry>
 673               <entry><option>-XNoForeignFunctionInterface</option></entry>
 674             </row>
 675             <row>
 676               <entry><option>-XGenerics</option></entry>
 677               <entry>Enable <link linkend="generic-classes">generic classes</link></entry>
 678               <entry>dynamic</entry>
 679               <entry><option>-XNoGenerics</option></entry>
 680             </row>
 681             <row>
 682               <entry><option>-XImplicitParams</option></entry>
 683               <entry>Enable <link linkend="implicit-parameters">Implicit Parameters</link>.
 684               Implied by <option>-fglasgow-exts</option>.</entry>
 685               <entry>dynamic</entry>
 686               <entry><option>-XNoImplicitParams</option></entry>
 687             </row>
 688             <row>
 689               <entry><option>-firrefutable-tuples</option></entry>
 690               <entry>Make tuple pattern matching irrefutable</entry>
 691               <entry>dynamic</entry>
 692               <entry><option>-fno-irrefutable-tuples</option></entry>
 693             </row>
 694             <row>
 695               <entry><option>-XNoImplicitPrelude</option></entry>
 696               <entry>Don't implicitly <literal>import Prelude</literal></entry>
 697               <entry>dynamic</entry>
 698               <entry><option>-XImplicitPrelude</option></entry>
 699             </row>
 700             <row>
 701               <entry><option>-XNoMonomorphismRestriction</option></entry>
 702               <entry>Disable the <link linkend="monomorphism">monomorphism restriction</link></entry>
 703               <entry>dynamic</entry>
 704               <entry><option>-XMonomorphismRrestriction</option></entry>
 705             </row>
 706             <row>
 707               <entry><option>-XNoMonoPatBinds</option></entry>
 708               <entry>Make <link linkend="monomorphism">pattern bindings polymorphic</link></entry>
 709               <entry>dynamic</entry>
 710               <entry><option>-XMonoPatBinds</option></entry>
 711             </row>
 712             <row>
 713               <entry><option>-XRelaxedPolyRec</option></entry>
 714               <entry>Relaxed checking for <link linkend="typing-binds">mutually-recursive polymorphic functions</link></entry>
 715               <entry>dynamic</entry>
 716               <entry><option>-XNoRelaxedPolyRec</option></entry>
 717             </row>
 718             <row>
 719               <entry><option>-XExtendedDefaultRules</option></entry>
 720               <entry>Use GHCi's <link linkend="extended-default-rules">extended default rules</link> in a normal module</entry>
 721               <entry>dynamic</entry>
 722               <entry><option>-XNoExtendedDefaultRules</option></entry>
 723             </row>
 724             <row>
 725               <entry><option>-XOverloadedStrings</option></entry>
 726               <entry>Enable <link linkend="overloaded-strings">overloaded string literals</link>.
 727               </entry>
 728               <entry>dynamic</entry>
 729               <entry><option>-XNoOverloadedStrings</option></entry>
 730             </row>
 731             <row>
 732               <entry><option>-XGADTs</option></entry>
 733               <entry>Enable <link linkend="gadt">generalised algebraic data types</link>.
 734               </entry>
 735               <entry>dynamic</entry>
 736               <entry><option>-XNoGADTs</option></entry>
 737             </row>
 738             <row>
 739               <entry><option>-XTypeFamilies</option></entry>
 740               <entry>Enable <link linkend="type-families">type families</link>.</entry>
 741               <entry>dynamic</entry>
 742               <entry><option>-XNoTypeFamilies</option></entry>
 743             </row>
 744             <row>
 745               <entry><option>-XScopedTypeVariables</option></entry>
 746               <entry>Enable <link linkend="scoped-type-variables">lexically-scoped type variables</link>.
 747               Implied by <option>-fglasgow-exts</option>.</entry>
 748               <entry>dynamic</entry>
 749               <entry><option>-XNoScopedTypeVariables</option></entry>
 750             </row>
 751             <row>
 752               <entry><option>-XTemplateHaskell</option></entry>
 753               <entry>Enable <link linkend="template-haskell">Template Haskell</link>.
 754                 No longer implied by <option>-fglasgow-exts</option>.</entry>
 755               <entry>dynamic</entry>
 756               <entry><option>-XNoTemplateHaskell</option></entry>
 757             </row>
 758             <row>
 759               <entry><option>-XQuasiQuotes</option></entry>
 760               <entry>Enable <link linkend="th-quasiquotation">quasiquotation</link>.</entry>
 761               <entry>dynamic</entry>
 762               <entry><option>-XNoQuasiQuotes</option></entry>
 763             </row>
 764             <row>
 765               <entry><option>-XBangPatterns</option></entry>
 766               <entry>Enable <link linkend="bang-patterns">bang patterns</link>.</entry>
 767               <entry>dynamic</entry>
 768               <entry><option>-XNoBangPatterns</option></entry>
 769             </row>
 770             <row>
 771               <entry><option>-XCPP</option></entry>
 772               <entry>Enable the <link linkend="c-pre-processor">C preprocessor</link>.</entry>
 773               <entry>dynamic</entry>
 774               <entry><option>-XNoCPP</option></entry>
 775             </row>
 776             <row>
 777               <entry><option>-XPatternGuards</option></entry>
 778               <entry>Enable <link linkend="pattern-guards">pattern guards</link>.</entry>
 779               <entry>dynamic</entry>
 780               <entry><option>-XNoPatternGuards</option></entry>
 781             </row>
 782             <row>
 783               <entry><option>-XViewPatterns</option></entry>
 784               <entry>Enable <link linkend="view-patterns">view patterns</link>.</entry>
 785               <entry>dynamic</entry>
 786               <entry><option>-XNoViewPatterns</option></entry>
 787             </row>
 788             <row>
 789               <entry><option>-XUnicodeSyntax</option></entry>
 790               <entry>Enable unicode syntax.</entry>
 791               <entry>dynamic</entry>
 792               <entry><option>-XNoUnicodeSyntax</option></entry>
 793             </row>
 794             <row>
 795               <entry><option>-XMagicHash</option></entry>
 796               <entry>Allow "#" as a <link linkend="magic-hash">postfix modifier on identifiers</link>.</entry>
 797               <entry>dynamic</entry>
 798               <entry><option>-XNoMagicHash</option></entry>
 799             </row>
 800             <row>
 801               <entry><option>-XNewQualifiedOperators</option></entry>
 802               <entry>Enable <link linkend="new-qualified-operators">new
 803               qualified operator syntax</link></entry>
 804               <entry>dynamic</entry>
 805               <entry><option>-XNoNewQualifiedOperators</option></entry>
 806             </row>
 807             <row>
 808               <entry><option>-XPolymorphicComponents</option></entry>
 809               <entry>Enable <link linkend="universal-quantification">polymorphic components for data constructors</link>.</entry>
 810               <entry>dynamic</entry>
 811               <entry><option>-XNoPolymorphicComponents</option></entry>
 812             </row>
 813             <row>
 814               <entry><option>-XRank2Types</option></entry>
 815               <entry>Enable <link linkend="universal-quantification">rank-2 types</link>.</entry>
 816               <entry>dynamic</entry>
 817               <entry><option>-XNoRank2Types</option></entry>
 818             </row>
 819             <row>
 820               <entry><option>-XRankNTypes</option></entry>
 821               <entry>Enable <link linkend="universal-quantification">rank-N types</link>.</entry>
 822               <entry>dynamic</entry>
 823               <entry><option>-XNoRankNTypes</option></entry>
 824             </row>
 825             <row>
 826               <entry><option>-XImpredicativeTypes</option></entry>
 827               <entry>Enable <link linkend="impredicative-polymorphism">impredicative types</link>.</entry>
 828               <entry>dynamic</entry>
 829               <entry><option>-XNoImpredicativeTypes</option></entry>
 830             </row>
 831             <row>
 832               <entry><option>-XExistentialQuantification</option></entry>
 833               <entry>Enable <link linkend="existential-quantification">existential quantification</link>.</entry>
 834               <entry>dynamic</entry>
 835               <entry><option>-XNoExistentialQuantification</option></entry>
 836             </row>
 837             <row>
 838               <entry><option>-XKindSignatures</option></entry>
 839               <entry>Enable <link linkend="kinding">kind signatures</link>.</entry>
 840               <entry>dynamic</entry>
 841               <entry><option>-XNoKindSignatures</option></entry>
 842             </row>
 843             <row>
 844               <entry><option>-XEmptyDataDecls</option></entry>
 845               <entry>Enable empty data declarations.</entry>
 846               <entry>dynamic</entry>
 847               <entry><option>-XNoEmptyDataDecls</option></entry>
 848             </row>
 849             <row>
 850               <entry><option>-XParallelListComp</option></entry>
 851               <entry>Enable <link linkend="parallel-list-comprehensions">parallel list comprehensions</link>.</entry>
 852               <entry>dynamic</entry>
 853               <entry><option>-XNoParallelListComp</option></entry>
 854             </row>
 855             <row>
 856               <entry><option>-XTransformListComp</option></entry>
 857               <entry>Enable <link linkend="generalised-list-comprehensions">transform list comprehensions</link>.</entry>
 858               <entry>dynamic</entry>
 859               <entry><option>-XNoTransformListComp</option></entry>
 860             </row>
 861             <row>
 862               <entry><option>-XUnliftedFFITypes</option></entry>
 863               <entry>Enable unlifted FFI types.</entry>
 864               <entry>dynamic</entry>
 865               <entry><option>-XNoUnliftedFFITypes</option></entry>
 866             </row>
 867             <row>
 868               <entry><option>-XLiberalTypeSynonyms</option></entry>
 869               <entry>Enable <link linkend="type-synonyms">liberalised type synonyms</link>.</entry>
 870               <entry>dynamic</entry>
 871               <entry><option>-XNoLiberalTypeSynonyms</option></entry>
 872             </row>
 873             <row>
 874               <entry><option>-XTypeOperators</option></entry>
 875               <entry>Enable type operators.</entry>
 876               <entry>dynamic</entry>
 877               <entry><option>-XNoTypeOperators</option></entry>
 878             </row>
 879             <row>
 880               <entry><option>-XRecursiveDo</option></entry>
 881               <entry>Enable <link linkend="mdo-notation">recursive do (mdo) notation</link>.</entry>
 882               <entry>dynamic</entry>
 883               <entry><option>-XNoRecursiveDo</option></entry>
 884             </row>
 885             <row>
 886               <entry><option>-XPArr</option></entry>
 887               <entry>Enable parallel arrays.</entry>
 888               <entry>dynamic</entry>
 889               <entry><option>-XNoPArr</option></entry>
 890             </row>
 891             <row>
 892               <entry><option>-XRecordWildCards</option></entry>
 893               <entry>Enable <link linkend="record-wildcards">record wildcards</link>.</entry>
 894               <entry>dynamic</entry>
 895               <entry><option>-XNoRecordWildCards</option></entry>
 896             </row>
 897             <row>
 898               <entry><option>-XNamedFieldPuns</option></entry>
 899               <entry>Enable <link linkend="record-puns">record puns</link>.</entry>
 900               <entry>dynamic</entry>
 901               <entry><option>-XNoNamedFieldPuns</option></entry>
 902             </row>
 903             <row>
 904               <entry><option>-XDisambiguateRecordFields</option></entry>
 905               <entry>Enable  <link linkend="disambiguate-fields">record field disambiguation</link>. </entry>
 906               <entry>dynamic</entry>
 907               <entry><option>-XNoDisambiguateRecordFields</option></entry>
 908             </row>
 909             <row>
 910               <entry><option>-XUnboxedTuples</option></entry>
 911               <entry>Enable <link linkend="unboxed-tuples">unboxed tuples</link>.</entry>
 912               <entry>dynamic</entry>
 913               <entry><option>-XNoUnboxedTuples</option></entry>
 914             </row>
 915             <row>
 916               <entry><option>-XStandaloneDeriving</option></entry>
 917               <entry>Enable <link linkend="stand-alone-deriving">standalone deriving</link>.</entry>
 918               <entry>dynamic</entry>
 919               <entry><option>-XNoStandaloneDeriving</option></entry>
 920             </row>
 921             <row>
 922               <entry><option>-XDeriveDataTypeable</option></entry>
 923               <entry>Enable <link linkend="deriving-typeable">deriving for the Data and Typeable classes</link>.</entry>
 924               <entry>dynamic</entry>
 925               <entry><option>-XNoDeriveDataTypeable</option></entry>
 926             </row>
 927             <row>
 928               <entry><option>-XGeneralizedNewtypeDeriving</option></entry>
 929               <entry>Enable <link linkend="newtype-deriving">newtype deriving</link>.</entry>
 930               <entry>dynamic</entry>
 931               <entry><option>-XNoGeneralizedNewtypeDeriving</option></entry>
 932             </row>
 933             <row>
 934               <entry><option>-XTypeSynonymInstances</option></entry>
 935               <entry>Enable <link linkend="type-synonym-instances">type synonyms</link>.</entry>
 936               <entry>dynamic</entry>
 937               <entry><option>-XNoTypeSynonymInstances</option></entry>
 938             </row>
 939             <row>
 940               <entry><option>-XFlexibleContexts</option></entry>
 941               <entry>Enable <link linkend="flexible-contexts">flexible contexts</link>.</entry>
 942               <entry>dynamic</entry>
 943               <entry><option>-XNoFlexibleContexts</option></entry>
 944             </row>
 945             <row>
 946               <entry><option>-XFlexibleInstances</option></entry>
 947               <entry>Enable <link linkend="instance-rules">flexible instances</link>.</entry>
 948               <entry>dynamic</entry>
 949               <entry><option>-XNoFlexibleInstances</option></entry>
 950             </row>
 951             <row>
 952               <entry><option>-XConstrainedClassMethods</option></entry>
 953               <entry>Enable <link linkend="class-method-types">constrained class methods</link>.</entry>
 954               <entry>dynamic</entry>
 955               <entry><option>-XNoConstrainedClassMethods</option></entry>
 956             </row>
 957             <row>
 958               <entry><option>-XMultiParamTypeClasses</option></entry>
 959               <entry>Enable <link linkend="multi-param-type-classes">multi parameter type classes</link>.</entry>
 960               <entry>dynamic</entry>
 961               <entry><option>-XNoMultiParamTypeClasses</option></entry>
 962             </row>
 963             <row>
 964               <entry><option>-XFunctionalDependencies</option></entry>
 965               <entry>Enable <link linkend="functional-dependencies">functional dependencies</link>.</entry>
 966               <entry>dynamic</entry>
 967               <entry><option>-XNoFunctionalDependencies</option></entry>
 968             </row>
 969             <row>
 970               <entry><option>-XPackageImports</option></entry>
 971               <entry>Enable <link linkend="package-imports">package-qualified imports</link>.</entry>
 972               <entry>dynamic</entry>
 973               <entry><option>-XNoPackageImports</option></entry>
 974             </row>
 975           </tbody>
 976         </tgroup>
 977       </informaltable>
 978     </sect2>
 979
 980     <sect2>
 981       <title>Warnings</title>
 982
 983       <para><xref linkend="options-sanity"/></para>
 984
 985     <informaltable>
 986       <tgroup cols="4" align="left" colsep="1" rowsep="1">
 987         <thead>
 988           <row>
 989             <entry>Flag</entry>
 990             <entry>Description</entry>
 991             <entry>Static/Dynamic</entry>
 992             <entry>Reverse</entry>
 993           </row>
 994         </thead>
 995         <tbody>
 996           <row>
 997             <entry><option>-W</option></entry>
 998             <entry>enable normal warnings</entry>
 999             <entry>dynamic</entry>
1000             <entry><option>-w</option></entry>
1001           </row>
1002           <row>
1003             <entry><option>-w</option></entry>
1004             <entry>disable all warnings</entry>
1005             <entry>dynamic</entry>
1006             <entry>-</entry>
1007           </row>
1008           <row>
1009             <entry><option>-Wall</option></entry>
1010             <entry>enable almost all warnings (details in <xref linkend="options-sanity"/>)</entry>
1011             <entry>dynamic</entry>
1012             <entry><option>-w</option></entry>
1013           </row>
1014           <row>
1015             <entry><option>-Werror</option></entry>
1016             <entry>make warnings fatal</entry>
1017             <entry>dynamic</entry>
1018             <entry>-Wwarn</entry>
1019           </row>
1020           <row>
1021             <entry><option>-Wwarn</option></entry>
1022             <entry>make warnings non-fatal</entry>
1023             <entry>dynamic</entry>
1024             <entry>-Werror</entry>
1025           </row>
1026
1027           <row>
1028             <entry><option>-fwarn-warnings-deprecations</option></entry>
1029             <entry>warn about uses of functions &amp; types that have warnings or deprecated pragmas</entry>
1030             <entry>dynamic</entry>
1031             <entry><option>-fno-warn-warnings-deprecations</option></entry>
1032           </row>
1033
1034           <row>
1035             <entry><option>-fwarn-deprecated-flags</option></entry>
1036             <entry>warn about uses of commandline flags that are deprecated</entry>
1037             <entry>dynamic</entry>
1038             <entry><option>-fno-warn-deprecated-flags</option></entry>
1039           </row>
1040
1041           <row>
1042             <entry><option>-fwarn-duplicate-exports</option></entry>
1043             <entry>warn when an entity is exported multiple times</entry>
1044             <entry>dynamic</entry>
1045             <entry><option>-fno-warn-duplicate-exports</option></entry>
1046           </row>
1047
1048           <row>
1049             <entry><option>-fwarn-hi-shadowing</option></entry>
1050             <entry>warn when a <literal>.hi</literal> file in the
1051             current directory shadows a library</entry>
1052             <entry>dynamic</entry>
1053             <entry><option>-fno-warn-hi-shadowing</option></entry>
1054           </row>
1055
1056           <row>
1057             <entry><option>-fwarn-implicit-prelude</option></entry>
1058             <entry>warn when the Prelude is implicitly imported</entry>
1059             <entry>dynamic</entry>
1060             <entry><option>-fno-warn-implicit-prelude</option></entry>
1061           </row>
1062
1063           <row>
1064             <entry><option>-fwarn-incomplete-patterns</option></entry>
1065             <entry>warn when a pattern match could fail</entry>
1066             <entry>dynamic</entry>
1067             <entry><option>-fno-warn-incomplete-patterns</option></entry>
1068           </row>
1069
1070           <row>
1071             <entry><option>-fwarn-incomplete-record-updates</option></entry>
1072             <entry>warn when a record update could fail</entry>
1073             <entry>dynamic</entry>
1074             <entry><option>-fno-warn-incomplete-record-updates</option></entry>
1075           </row>
1076
1077           <row>
1078             <entry><option>-fwarn-missing-fields</option></entry>
1079             <entry>warn when fields of a record are uninitialised</entry>
1080             <entry>dynamic</entry>
1081             <entry><option>-fno-warn-missing-fields</option></entry>
1082           </row>
1083
1084           <row>
1085             <entry><option>-fwarn-missing-methods</option></entry>
1086             <entry>warn when class methods are undefined</entry>
1087             <entry>dynamic</entry>
1088             <entry><option>-fno-warn-missing-methods</option></entry>
1089           </row>
1090
1091           <row>
1092             <entry><option>-fwarn-missing-signatures</option></entry>
1093             <entry>warn about top-level functions without signatures</entry>
1094             <entry>dynamic</entry>
1095             <entry><option>-fno-warn-missing-signatures</option></entry>
1096           </row>
1097
1098           <row>
1099             <entry><option>-fwarn-name-shadowing</option></entry>
1100             <entry>warn when names are shadowed</entry>
1101             <entry>dynamic</entry>
1102             <entry><option>-fno-warn-name-shadowing</option></entry>
1103           </row>
1104
1105           <row>
1106             <entry><option>-fwarn-orphans</option></entry>
1107             <entry>warn when the module contains <link linkend="orphan-modules">orphan instance declarations
1108             or rewrite rules</link></entry>
1109             <entry>dynamic</entry>
1110             <entry><option>-fno-warn-orphans</option></entry>
1111           </row>
1112
1113           <row>
1114             <entry><option>-fwarn-overlapping-patterns</option></entry>
1115             <entry>warn about overlapping patterns</entry>
1116             <entry>dynamic</entry>
1117             <entry><option>-fno-warn-overlapping-patterns</option></entry>
1118           </row>
1119
1120           <row>
1121             <entry><option>-fwarn-simple-patterns</option></entry>
1122             <entry>warn about lambda-patterns that can fail</entry>
1123             <entry>dynamic</entry>
1124             <entry><option>-fno-warn-simple-patterns</option></entry>
1125           </row>
1126
1127           <row>
1128             <entry><option>-fwarn-tabs</option></entry>
1129             <entry>warn if there are tabs in the source file</entry>
1130             <entry>dynamic</entry>
1131             <entry><option>-fno-warn-tabs</option></entry>
1132           </row>
1133
1134           <row>
1135             <entry><option>-fwarn-type-defaults</option></entry>
1136             <entry>warn when defaulting happens</entry>
1137             <entry>dynamic</entry>
1138             <entry><option>-fno-warn-type-defaults</option></entry>
1139           </row>
1140
1141           <row>
1142             <entry><option>-fwarn-monomorphism-restriction</option></entry>
1143             <entry>warn when the Monomorphism Restriction is applied</entry>
1144             <entry>dynamic</entry>
1145             <entry><option>-fno-warn-monomorphism-restriction</option></entry>
1146           </row>
1147
1148           <row>
1149             <entry><option>-fwarn-unused-binds</option></entry>
1150             <entry>warn about bindings that are unused</entry>
1151             <entry>dynamic</entry>
1152             <entry><option>-fno-warn-unused-binds</option></entry>
1153           </row>
1154
1155           <row>
1156             <entry><option>-fwarn-unused-imports</option></entry>
1157             <entry>warn about unnecessary imports</entry>
1158             <entry>dynamic</entry>
1159             <entry><option>-fno-warn-unused-imports</option></entry>
1160           </row>
1161
1162           <row>
1163             <entry><option>-fwarn-unused-matches</option></entry>
1164             <entry>warn about variables in patterns that aren't used</entry>
1165             <entry>dynamic</entry>
1166             <entry><option>-fno-warn-unused-matches</option></entry>
1167           </row>
1168
1169           </tbody>
1170         </tgroup>
1171       </informaltable>
1172
1173     </sect2>
1174     <sect2>
1175       <title>Optimisation levels</title>
1176
1177       <para><xref linkend="options-optimise"/></para>
1178
1179       <informaltable>
1180         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1181           <thead>
1182             <row>
1183               <entry>Flag</entry>
1184               <entry>Description</entry>
1185               <entry>Static/Dynamic</entry>
1186               <entry>Reverse</entry>
1187             </row>
1188           </thead>
1189           <tbody>
1190             <row>
1191               <entry><option>-O</option></entry>
1192               <entry>Enable default optimisation (level 1)</entry>
1193               <entry>dynamic</entry>
1194               <entry><option>-O0</option></entry>
1195             </row>
1196             <row>
1197               <entry><option>-O</option><replaceable>n</replaceable></entry>
1198               <entry>Set optimisation level <replaceable>n</replaceable></entry>
1199               <entry>dynamic</entry>
1200               <entry><option>-O0</option></entry>
1201             </row>
1202           </tbody>
1203         </tgroup>
1204       </informaltable>
1205
1206     </sect2>
1207     <sect2>
1208       <title>Individual optimisations</title>
1209
1210       <para><xref linkend="options-f"/></para>
1211
1212       <informaltable>
1213         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1214           <thead>
1215             <row>
1216               <entry>Flag</entry>
1217               <entry>Description</entry>
1218               <entry>Static/Dynamic</entry>
1219               <entry>Reverse</entry>
1220             </row>
1221           </thead>
1222           <tbody>
1223             <row>
1224               <entry><option>-fcase-merge</option></entry>
1225               <entry>Enable case-merging. Implied by <option>-O</option>.</entry>
1226               <entry>dynamic</entry>
1227               <entry><option>-fno-case-merge</option></entry>
1228             </row>
1229
1230             <row>
1231               <entry><option>-fdicts-strict</option></entry>
1232               <entry>Make dictionaries strict</entry>
1233               <entry>static</entry>
1234               <entry><option>-fno-dicts-strict</option></entry>
1235             </row>
1236
1237             <row>
1238               <entry><option>-fmethod-sharing</option></entry>
1239               <entry>Share specialisations of overloaded functions (default)</entry>
1240               <entry>dynamic</entry>
1241               <entry><option>-fno-method-sharing</option></entry>
1242             </row>
1243
1244             <row>
1245               <entry><option>-fdo-eta-reduction</option></entry>
1246               <entry>Enable eta-reduction. Implied by <option>-O</option>.</entry>
1247               <entry>dynamic</entry>
1248               <entry><option>-fno-do-eta-reduction</option></entry>
1249             </row>
1250
1251             <row>
1252               <entry><option>-fdo-lambda-eta-expansion</option></entry>
1253               <entry>Enable lambda eta-reduction</entry>
1254               <entry>dynamic</entry>
1255               <entry><option>-fno-do-lambda-eta-expansion</option></entry>
1256             </row>
1257
1258             <row>
1259               <entry><option>-fexcess-precision</option></entry>
1260               <entry>Enable excess intermediate precision</entry>
1261               <entry>dynamic</entry>
1262               <entry><option>-fno-excess-precision</option></entry>
1263             </row>
1264
1265             <row>
1266               <entry><option>-fignore-asserts</option></entry>
1267               <entry>Ignore assertions in the source</entry>
1268               <entry>dynamic</entry>
1269               <entry><option>-fno-ignore-asserts</option></entry>
1270             </row>
1271
1272             <row>
1273               <entry><option>-fignore-interface-pragmas</option></entry>
1274               <entry>Ignore pragmas in interface files</entry>
1275               <entry>dynamic</entry>
1276               <entry><option>-fno-ignore-interface-pragmas</option></entry>
1277             </row>
1278
1279             <row>
1280               <entry><option>-fomit-interface-pragmas</option></entry>
1281               <entry>Don't generate interface pragmas</entry>
1282               <entry>dynamic</entry>
1283               <entry><option>-fno-omit-interface-pragmas</option></entry>
1284             </row>
1285
1286             <row>
1287               <entry><option>-fmax-worker-args</option></entry>
1288               <entry>If a worker has that many arguments, none will be
1289                 unpacked anymore (default: 10)</entry>
1290               <entry>static</entry>
1291               <entry>-</entry>
1292             </row>
1293
1294             <row>
1295               <entry><option>-fsimplifier-phases</option></entry>
1296               <entry>Set the number of phases for the simplifier (default 2).
1297               Ignored with <option>-O0</option>.</entry>
1298               <entry>dynamic</entry>
1299               <entry>-</entry>
1300             </row>
1301
1302             <row>
1303               <entry><option>-fmax-simplifier-iterations</option></entry>
1304               <entry>Set the max iterations for the simplifier</entry>
1305               <entry>dynamic</entry>
1306               <entry>-</entry>
1307             </row>
1308
1309             <row>
1310               <entry><option>-fno-state-hack</option></entry>
1311               <entry>Turn off the "state hack" whereby any lambda with a real-world state token
1312               as argument is considered to be single-entry.  Hence OK to inline things inside it.</entry>
1313               <entry>static</entry>
1314               <entry>-</entry>
1315             </row>
1316
1317             <row>
1318               <entry><option>-fcse</option></entry>
1319               <entry>Turn on common sub-expression elimination. Implied by <option>-O</option>.</entry>
1320               <entry>dynamic</entry>
1321               <entry>-fno-cse</entry>
1322             </row>
1323
1324             <row>
1325               <entry><option>-ffull-laziness</option></entry>
1326               <entry>Turn on full laziness (floating bindings outwards). Implied by <option>-O</option>.</entry>
1327               <entry>dynamic</entry>
1328               <entry>-fno-full-laziness</entry>
1329             </row>
1330
1331             <row>
1332               <entry><option>-frewrite-rules</option></entry>
1333               <entry>Switch on all rewrite rules (including rules
1334               generated by automatic specialisation of overloaded functions).
1335               Implied by <option>-O</option>. </entry>
1336               <entry>dynamic</entry>
1337               <entry><option>-fno-rewrite-rules</option></entry>
1338             </row>
1339
1340             <row>
1341               <entry><option>-fstrictness</option></entry>
1342               <entry>Turn on strictness analysis. Implied by <option>-O</option>.</entry>
1343               <entry>dynamic</entry>
1344               <entry>-fno-strictness</entry>
1345             </row>
1346
1347             <row>
1348               <entry><option>-fspec-constr</option></entry>
1349               <entry>Turn on the SpecConstr transformation. Implied by <option>-O2</option>.</entry>
1350               <entry>dynamic</entry>
1351               <entry>-fno-spec-constr</entry>
1352             </row>
1353
1354             <row>
1355               <entry><option>-fspec-constr-threshold</option>=<replaceable>n</replaceable></entry>
1356               <entry>Set the size threshold for the SpecConstr transformation to <replaceable>n</replaceable> (default: 200)</entry>
1357               <entry>static</entry>
1358               <entry><option>-fno-spec-constr-threshold</option></entry>
1359             </row>
1360
1361             <row>
1362               <entry><option>-fspec-constr-count</option>=<replaceable>n</replaceable></entry>
1363               <entry>Set to <replaceable>n</replaceable> (default: 3) the maximum number of
1364                 specialisations that will be created for any one function
1365                 by the SpecConstr transformation</entry>
1366               <entry>static</entry>
1367               <entry><option>-fno-spec-constr-count</option></entry>
1368             </row>
1369
1370             <row>
1371               <entry><option>-fliberate-case</option></entry>
1372               <entry>Turn on the liberate-case transformation. Implied by <option>-O2</option>.</entry>
1373               <entry>dynamic</entry>
1374               <entry>-fno-liberate-case</entry>
1375             </row>
1376
1377             <row>
1378               <entry><option>-fstatic-argument-transformation</option></entry>
1379               <entry>Turn on the static argument transformation. Implied by <option>-O2</option>.</entry>
1380               <entry>dynamic</entry>
1381               <entry>-fno-static-argument-transformation</entry>
1382             </row>
1383
1384             <row>
1385               <entry><option>-fliberate-case-threshold</option>=<replaceable>n</replaceable></entry>
1386               <entry>Set the size threshold for the liberate-case transformation to <replaceable>n</replaceable> (default: 200)</entry>
1387               <entry>static</entry>
1388               <entry><option>-fno-liberate-case-threshold</option></entry>
1389             </row>
1390
1391             <row>
1392               <entry><option>-funbox-strict-fields</option></entry>
1393               <entry>Flatten strict constructor fields</entry>
1394               <entry>dynamic</entry>
1395               <entry><option>-fno-unbox-strict-fields</option></entry>
1396             </row>
1397
1398             <row>
1399               <entry><option>-funfolding-creation-threshold</option></entry>
1400               <entry>Tweak unfolding settings</entry>
1401               <entry>static</entry>
1402               <entry><option>-fno-unfolding-creation-threshold</option></entry>
1403             </row>
1404
1405             <row>
1406               <entry><option>-funfolding-fun-discount</option></entry>
1407               <entry>Tweak unfolding settings</entry>
1408               <entry>static</entry>
1409               <entry><option>-fno-unfolding-fun-discount</option></entry>
1410             </row>
1411
1412             <row>
1413               <entry><option>-funfolding-keeness-factor</option></entry>
1414               <entry>Tweak unfolding settings</entry>
1415               <entry>static</entry>
1416               <entry><option>-fno-unfolding-keeness-factor</option></entry>
1417             </row>
1418
1419             <row>
1420               <entry><option>-funfolding-use-threshold</option></entry>
1421               <entry>Tweak unfolding settings</entry>
1422               <entry>static</entry>
1423               <entry><option>-fno-unfolding-use-threshold</option></entry>
1424             </row>
1425
1426             <row>
1427               <entry><option>-fno-pre-inlining</option></entry>
1428               <entry>Turn off pre-inlining</entry>
1429               <entry>static</entry>
1430               <entry>-</entry>
1431             </row>
1432           </tbody>
1433         </tgroup>
1434       </informaltable>
1435     </sect2>
1436
1437     <sect2>
1438       <title>Profiling options</title>
1439
1440       <para><xref linkend="profiling"/></para>
1441
1442       <informaltable>
1443         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1444           <thead>
1445             <row>
1446               <entry>Flag</entry>
1447               <entry>Description</entry>
1448               <entry>Static/Dynamic</entry>
1449               <entry>Reverse</entry>
1450             </row>
1451           </thead>
1452           <tbody>
1453             <row>
1454               <entry><option>-auto</option></entry>
1455               <entry>Auto-add <literal>_scc_</literal>s to all
1456               exported functions</entry>
1457               <entry>static</entry>
1458               <entry><option>-no-auto</option></entry>
1459             </row>
1460             <row>
1461               <entry><option>-auto-all</option></entry>
1462               <entry>Auto-add <literal>_scc_</literal>s to all
1463               top-level functions</entry>
1464               <entry>static</entry>
1465               <entry><option>-no-auto-all</option></entry>
1466             </row>
1467             <row>
1468               <entry><option>-caf-all</option></entry>
1469               <entry>Auto-add <literal>_scc_</literal>s to all CAFs</entry>
1470               <entry>static</entry>
1471               <entry><option>-no-caf-all</option></entry>
1472             </row>
1473             <row>
1474               <entry><option>-prof</option></entry>
1475               <entry>Turn on profiling</entry>
1476               <entry>static</entry>
1477               <entry>-</entry>
1478             </row>
1479             <row>
1480               <entry><option>-ticky</option></entry>
1481               <entry>Turn on ticky-ticky profiling</entry>
1482               <entry>static</entry>
1483               <entry>-</entry>
1484             </row>
1485           </tbody>
1486         </tgroup>
1487       </informaltable>
1488     </sect2>
1489
1490     <sect2>
1491       <title>Program coverage options</title>
1492
1493       <para><xref linkend="hpc"/></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>-fhpc</option></entry>
1508               <entry>Turn on Haskell program coverage instrumentation</entry>
1509               <entry>static</entry>
1510               <entry><option>-</option></entry>
1511             </row>
1512             <row>
1513               <entry><option>-hpcdir dir</option></entry>
1514               <entry>Directory to deposit .mix files during compilation (default is .hpc)</entry>
1515               <entry>dynamic</entry>
1516               <entry><option>-</option></entry>
1517             </row>
1518           </tbody>
1519         </tgroup>
1520       </informaltable>
1521     </sect2>
1522
1523     <sect2>
1524       <title>Haskell pre-processor options</title>
1525
1526       <para><xref linkend="pre-processor"/></para>
1527
1528       <informaltable>
1529         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1530           <thead>
1531             <row>
1532               <entry>Flag</entry>
1533               <entry>Description</entry>
1534               <entry>Static/Dynamic</entry>
1535               <entry>Reverse</entry>
1536             </row>
1537           </thead>
1538           <tbody>
1539             <row>
1540               <entry><option>-F</option></entry>
1541               <entry>
1542                   Enable the use of a pre-processor
1543                   (set with <option>-pgmF</option>)
1544               </entry>
1545               <entry>dynamic</entry>
1546               <entry>-</entry>
1547             </row>
1548           </tbody>
1549         </tgroup>
1550       </informaltable>
1551     </sect2>
1552
1553     <sect2>
1554       <title>C pre-processor options</title>
1555
1556       <para><xref linkend="c-pre-processor"/></para>
1557
1558       <informaltable>
1559         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1560           <thead>
1561             <row>
1562               <entry>Flag</entry>
1563               <entry>Description</entry>
1564               <entry>Static/Dynamic</entry>
1565               <entry>Reverse</entry>
1566             </row>
1567           </thead>
1568           <tbody>
1569             <row>
1570               <entry><option>-cpp</option></entry>
1571               <entry>Run the C pre-processor on Haskell source files</entry>
1572               <entry>dynamic</entry>
1573               <entry>-</entry>
1574             </row>
1575             <row>
1576               <entry><option>-D</option><replaceable>symbol</replaceable><optional>=<replaceable>value</replaceable></optional></entry>
1577               <entry>Define a symbol in the C pre-processor</entry>
1578               <entry>dynamic</entry>
1579               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1580             </row>
1581             <row>
1582               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1583               <entry>Undefine a symbol in the C pre-processor</entry>
1584               <entry>dynamic</entry>
1585               <entry>-</entry>
1586             </row>
1587             <row>
1588               <entry><option>-I</option><replaceable>dir</replaceable></entry>
1589               <entry>Add <replaceable>dir</replaceable> to the
1590               directory search list for <literal>#include</literal> files</entry>
1591               <entry>dynamic</entry>
1592               <entry>-</entry>
1593             </row>
1594           </tbody>
1595         </tgroup>
1596       </informaltable>
1597     </sect2>
1598
1599     <sect2>
1600       <title>C compiler options</title>
1601
1602       <para><xref linkend="options-C-compiler"/></para>
1603       <informaltable>
1604         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1605           <thead>
1606             <row>
1607               <entry>Flag</entry>
1608               <entry>Description</entry>
1609               <entry>Static/Dynamic</entry>
1610               <entry>Reverse</entry>
1611             </row>
1612           </thead>
1613           <tbody>
1614             <row>
1615               <entry><option>-#include</option> <replaceable>file</replaceable></entry>
1616               <entry>Include <replaceable>file</replaceable> when
1617               compiling the <filename>.hc</filename> file</entry>
1618               <entry>dynamic</entry>
1619               <entry>-</entry>
1620             </row>
1621           </tbody>
1622         </tgroup>
1623       </informaltable>
1624     </sect2>
1625
1626     <sect2>
1627       <title>Code generation options</title>
1628
1629       <para><xref linkend="options-codegen"/></para>
1630
1631       <informaltable>
1632         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1633           <thead>
1634             <row>
1635               <entry>Flag</entry>
1636               <entry>Description</entry>
1637               <entry>Static/Dynamic</entry>
1638               <entry>Reverse</entry>
1639             </row>
1640           </thead>
1641           <tbody>
1642             <row>
1643               <entry><option>-fasm</option></entry>
1644               <entry>Use the native code generator</entry>
1645               <entry>dynamic</entry>
1646               <entry>-fvia-C</entry>
1647             </row>
1648             <row>
1649               <entry><option>-fvia-C</option></entry>
1650               <entry>Compile via C</entry>
1651               <entry>dynamic</entry>
1652               <entry>-fasm</entry>
1653             </row>
1654             <row>
1655               <entry><option>-fno-code</option></entry>
1656               <entry>Omit code generation</entry>
1657               <entry>dynamic</entry>
1658               <entry>-</entry>
1659             </row>
1660             <row>
1661               <entry><option>-fbyte-code</option></entry>
1662               <entry>Generate byte-code</entry>
1663               <entry>dynamic</entry>
1664               <entry>-</entry>
1665             </row>
1666             <row>
1667               <entry><option>-fobject-code</option></entry>
1668               <entry>Generate object code</entry>
1669               <entry>dynamic</entry>
1670               <entry>-</entry>
1671             </row>
1672           </tbody>
1673         </tgroup>
1674       </informaltable>
1675     </sect2>
1676
1677     <sect2>
1678       <title>Linking options</title>
1679
1680       <para><xref linkend="options-linker"/></para>
1681
1682       <informaltable>
1683         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1684           <thead>
1685             <row>
1686               <entry>Flag</entry>
1687               <entry>Description</entry>
1688               <entry>Static/Dynamic</entry>
1689               <entry>Reverse</entry>
1690             </row>
1691           </thead>
1692           <tbody>
1693             <row>
1694               <entry><option>-fPIC</option></entry>
1695               <entry>Generate position-independent code (where available)</entry>
1696               <entry>static</entry>
1697               <entry>-</entry>
1698             </row>
1699             <row>
1700               <entry><option>-dynamic</option></entry>
1701               <entry>Use dynamic Haskell libraries (if available)</entry>
1702               <entry>static</entry>
1703               <entry>-</entry>
1704             </row>
1705             <row>
1706               <entry><option>-framework</option> <replaceable>name</replaceable></entry>
1707               <entry>On Darwin/MacOS X only, link in the framework <replaceable>name</replaceable>.
1708                 This option corresponds to the <option>-framework</option> option for Apple's Linker.</entry>
1709               <entry>dynamic</entry>
1710               <entry>-</entry>
1711             </row>
1712             <row>
1713               <entry><option>-framework-path</option> <replaceable>name</replaceable></entry>
1714               <entry>On Darwin/MacOS X only, add <replaceable>dir</replaceable> to the list of
1715                 directories searched for frameworks.
1716                 This option corresponds to the <option>-F</option> option for Apple's Linker.</entry>
1717               <entry>dynamic</entry>
1718               <entry>-</entry>
1719             </row>
1720             <row>
1721               <entry><option>-l</option><replaceable>lib</replaceable></entry>
1722               <entry>Link in library <replaceable>lib</replaceable></entry>
1723               <entry>dynamic</entry>
1724               <entry>-</entry>
1725             </row>
1726             <row>
1727               <entry><option>-L</option><replaceable>dir</replaceable></entry>
1728               <entry>Add <replaceable>dir</replaceable> to the list of
1729               directories searched for libraries</entry>
1730               <entry>dynamic</entry>
1731               <entry>-</entry>
1732             </row>
1733             <row>
1734               <entry><option>-main-is</option></entry>
1735               <entry>Set main module and function</entry>
1736               <entry>dynamic</entry>
1737               <entry>-</entry>
1738             </row>
1739             <row>
1740               <entry><option>--mk-dll</option></entry>
1741               <entry>DLL-creation mode (Windows only)</entry>
1742               <entry>dynamic</entry>
1743               <entry>-</entry>
1744             </row>
1745             <row>
1746               <entry><option>-no-hs-main</option></entry>
1747               <entry>Don't assume this program contains <literal>main</literal></entry>
1748               <entry>dynamic</entry>
1749               <entry>-</entry>
1750             </row>
1751             <row>
1752               <entry><option>-no-link</option></entry>
1753               <entry>Omit linking</entry>
1754               <entry>dynamic</entry>
1755               <entry>-</entry>
1756             </row>
1757             <row>
1758               <entry><option>-split-objs</option></entry>
1759               <entry>Split objects (for libraries)</entry>
1760               <entry>dynamic</entry>
1761               <entry>-</entry>
1762             </row>
1763             <row>
1764               <entry><option>-static</option></entry>
1765               <entry>Use static Haskell libraries</entry>
1766               <entry>static</entry>
1767               <entry>-</entry>
1768             </row>
1769             <row>
1770               <entry><option>-threaded</option></entry>
1771               <entry>Use the threaded runtime</entry>
1772               <entry>static</entry>
1773               <entry>-</entry>
1774             </row>
1775             <row>
1776               <entry><option>-debug</option></entry>
1777               <entry>Use the debugging runtime</entry>
1778               <entry>static</entry>
1779               <entry>-</entry>
1780             </row>
1781             <row>
1782               <entry><option>-fno-gen-manifest</option></entry>
1783               <entry>Do not generate a manifest file (Windows only)</entry>
1784               <entry>dynamic</entry>
1785               <entry>-</entry>
1786             </row>
1787             <row>
1788               <entry><option>-fno-embed-manifest</option></entry>
1789               <entry>Do not embed the manifest in the executable (Windows only)</entry>
1790               <entry>dynamic</entry>
1791               <entry>-</entry>
1792             </row>
1793           </tbody>
1794         </tgroup>
1795       </informaltable>
1796     </sect2>
1797
1798     <sect2>
1799       <title>Replacing phases</title>
1800
1801       <para><xref linkend="replacing-phases"/></para>
1802
1803       <informaltable>
1804         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1805           <thead>
1806             <row>
1807               <entry>Flag</entry>
1808               <entry>Description</entry>
1809               <entry>Static/Dynamic</entry>
1810               <entry>Reverse</entry>
1811             </row>
1812           </thead>
1813           <tbody>
1814             <row>
1815               <entry><option>-pgmL</option> <replaceable>cmd</replaceable></entry>
1816               <entry>Use <replaceable>cmd</replaceable> as the literate pre-processor</entry>
1817               <entry>dynamic</entry>
1818               <entry>-</entry>
1819             </row>
1820             <row>
1821               <entry><option>-pgmP</option> <replaceable>cmd</replaceable></entry>
1822               <entry>Use <replaceable>cmd</replaceable> as the C
1823               pre-processor (with <option>-cpp</option> only)</entry>
1824               <entry>dynamic</entry>
1825               <entry>-</entry>
1826             </row>
1827             <row>
1828               <entry><option>-pgmc</option> <replaceable>cmd</replaceable></entry>
1829               <entry>Use <replaceable>cmd</replaceable> as the C compiler</entry>
1830               <entry>dynamic</entry>
1831               <entry>-</entry>
1832             </row>
1833             <row>
1834               <entry><option>-pgmm</option> <replaceable>cmd</replaceable></entry>
1835               <entry>Use <replaceable>cmd</replaceable> as the mangler</entry>
1836               <entry>dynamic</entry>
1837               <entry>-</entry>
1838             </row>
1839             <row>
1840               <entry><option>-pgms</option> <replaceable>cmd</replaceable></entry>
1841               <entry>Use <replaceable>cmd</replaceable> as the splitter</entry>
1842               <entry>dynamic</entry>
1843               <entry>-</entry>
1844             </row>
1845             <row>
1846               <entry><option>-pgma</option> <replaceable>cmd</replaceable></entry>
1847               <entry>Use <replaceable>cmd</replaceable> as the assembler</entry>
1848               <entry>dynamic</entry>
1849               <entry>-</entry>
1850             </row>
1851             <row>
1852               <entry><option>-pgml</option> <replaceable>cmd</replaceable></entry>
1853               <entry>Use <replaceable>cmd</replaceable> as the linker</entry>
1854               <entry>dynamic</entry>
1855               <entry>-</entry>
1856             </row>
1857             <row>
1858               <entry><option>-pgmdll</option> <replaceable>cmd</replaceable></entry>
1859               <entry>Use <replaceable>cmd</replaceable> as the DLL generator</entry>
1860               <entry>dynamic</entry>
1861               <entry>-</entry>
1862             </row>
1863             <row>
1864               <entry><option>-pgmF</option> <replaceable>cmd</replaceable></entry>
1865               <entry>Use <replaceable>cmd</replaceable> as the pre-processor
1866               (with <option>-F</option> only)</entry>
1867               <entry>dynamic</entry>
1868               <entry>-</entry>
1869             </row>
1870             <row>
1871               <entry><option>-pgmwindres</option> <replaceable>cmd</replaceable></entry>
1872               <entry>Use <replaceable>cmd</replaceable> as the program for
1873                 embedding manifests on Windows.</entry>
1874               <entry>dynamic</entry>
1875               <entry>-</entry>
1876             </row>
1877           </tbody>
1878         </tgroup>
1879       </informaltable>
1880       <indexterm><primary><option>-pgmL</option></primary></indexterm>
1881       <indexterm><primary><option>-pgmP</option></primary></indexterm>
1882       <indexterm><primary><option>-pgmc</option></primary></indexterm>
1883       <indexterm><primary><option>-pgma</option></primary></indexterm>
1884       <indexterm><primary><option>-pgml</option></primary></indexterm>
1885       <indexterm><primary><option>-pgmdll</option></primary></indexterm>
1886       <indexterm><primary><option>-pgmF</option></primary></indexterm>
1887
1888     </sect2>
1889
1890     <sect2>
1891       <title>Forcing options to particular phases</title>
1892
1893       <para><xref linkend="forcing-options-through"/></para>
1894
1895       <informaltable>
1896         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1897           <thead>
1898             <row>
1899               <entry>Flag</entry>
1900               <entry>Description</entry>
1901               <entry>Static/Dynamic</entry>
1902               <entry>Reverse</entry>
1903             </row>
1904           </thead>
1905           <tbody>
1906             <row>
1907               <entry><option>-optL</option> <replaceable>option</replaceable></entry>
1908               <entry>pass <replaceable>option</replaceable> to the literate pre-processor</entry>
1909               <entry>dynamic</entry>
1910               <entry>-</entry>
1911             </row>
1912             <row>
1913               <entry><option>-optP</option> <replaceable>option</replaceable></entry>
1914               <entry>pass <replaceable>option</replaceable> to cpp (with
1915               <option>-cpp</option> only)</entry>
1916               <entry>dynamic</entry>
1917               <entry>-</entry>
1918             </row>
1919             <row>
1920               <entry><option>-optF</option> <replaceable>option</replaceable></entry>
1921               <entry>pass <replaceable>option</replaceable> to the
1922               custom pre-processor</entry>
1923               <entry>dynamic</entry>
1924               <entry>-</entry>
1925             </row>
1926             <row>
1927               <entry><option>-optc</option> <replaceable>option</replaceable></entry>
1928               <entry>pass <replaceable>option</replaceable> to the C compiler</entry>
1929               <entry>dynamic</entry>
1930               <entry>-</entry>
1931             </row>
1932             <row>
1933               <entry><option>-optm</option> <replaceable>option</replaceable></entry>
1934               <entry>pass <replaceable>option</replaceable> to the mangler</entry>
1935               <entry>dynamic</entry>
1936               <entry>-</entry>
1937             </row>
1938             <row>
1939               <entry><option>-opta</option> <replaceable>option</replaceable></entry>
1940               <entry>pass <replaceable>option</replaceable> to the assembler</entry>
1941               <entry>dynamic</entry>
1942               <entry>-</entry>
1943             </row>
1944             <row>
1945               <entry><option>-optl</option> <replaceable>option</replaceable></entry>
1946               <entry>pass <replaceable>option</replaceable> to the linker</entry>
1947               <entry>dynamic</entry>
1948               <entry>-</entry>
1949             </row>
1950             <row>
1951               <entry><option>-optdll</option> <replaceable>option</replaceable></entry>
1952               <entry>pass <replaceable>option</replaceable> to the DLL generator</entry>
1953               <entry>dynamic</entry>
1954               <entry>-</entry>
1955             </row>
1956             <row>
1957               <entry><option>-optwindres</option> <replaceable>option</replaceable></entry>
1958               <entry>pass <replaceable>option</replaceable> to <literal>windres</literal>.</entry>
1959               <entry>dynamic</entry>
1960               <entry>-</entry>
1961             </row>
1962           </tbody>
1963         </tgroup>
1964       </informaltable>
1965     </sect2>
1966
1967     <sect2>
1968       <title>Platform-specific options</title>
1969
1970       <para><xref linkend="options-platform"/></para>
1971
1972       <informaltable>
1973         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1974           <thead>
1975             <row>
1976               <entry>Flag</entry>
1977               <entry>Description</entry>
1978               <entry>Static/Dynamic</entry>
1979               <entry>Reverse</entry>
1980             </row>
1981           </thead>
1982           <tbody>
1983             <row>
1984               <entry><option>-monly-[432]-regs</option></entry>
1985               <entry>(x86 only) give some registers back to the C compiler</entry>
1986               <entry>dynamic</entry>
1987               <entry>-</entry>
1988             </row>
1989           </tbody>
1990         </tgroup>
1991       </informaltable>
1992     </sect2>
1993
1994
1995     <sect2>
1996       <title>External core file options</title>
1997
1998       <para><xref linkend="ext-core"/></para>
1999
2000       <informaltable>
2001         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2002           <thead>
2003             <row>
2004               <entry>Flag</entry>
2005               <entry>Description</entry>
2006               <entry>Static/Dynamic</entry>
2007               <entry>Reverse</entry>
2008             </row>
2009           </thead>
2010           <tbody>
2011             <row>
2012               <entry><option>-fext-core</option></entry>
2013               <entry>Generate <filename>.hcr</filename> external Core files</entry>
2014               <entry>static</entry>
2015               <entry>-</entry>
2016             </row>
2017           </tbody>
2018         </tgroup>
2019       </informaltable>
2020     </sect2>
2021
2022
2023     <sect2>
2024       <title>Compiler debugging options</title>
2025
2026       <para><xref linkend="options-debugging"/></para>
2027
2028       <informaltable>
2029         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2030           <thead>
2031             <row>
2032               <entry>Flag</entry>
2033               <entry>Description</entry>
2034               <entry>Static/Dynamic</entry>
2035               <entry>Reverse</entry>
2036             </row>
2037           </thead>
2038           <tbody>
2039             <row>
2040               <entry><option>-dcore-lint</option></entry>
2041               <entry>Turn on internal sanity checking</entry>
2042               <entry>dynamic</entry>
2043               <entry>-</entry>
2044             </row>
2045             <row>
2046               <entry><option>-ddump-asm</option></entry>
2047               <entry>Dump assembly</entry>
2048               <entry>dynamic</entry>
2049               <entry>-</entry>
2050             </row>
2051             <row>
2052               <entry><option>-ddump-bcos</option></entry>
2053               <entry>Dump interpreter byte code</entry>
2054               <entry>dynamic</entry>
2055               <entry>-</entry>
2056             </row>
2057             <row>
2058               <entry><option>-ddump-cmm</option></entry>
2059               <entry>Dump C-- output</entry>
2060               <entry>dynamic</entry>
2061               <entry>-</entry>
2062             </row>
2063             <row>
2064               <entry><option>-ddump-cpranal</option></entry>
2065               <entry>Dump output from CPR analysis</entry>
2066               <entry>dynamic</entry>
2067               <entry>-</entry>
2068             </row>
2069             <row>
2070               <entry><option>-ddump-cse</option></entry>
2071               <entry>Dump CSE output</entry>
2072               <entry>dynamic</entry>
2073               <entry>-</entry>
2074             </row>
2075             <row>
2076               <entry><option>-ddump-deriv</option></entry>
2077               <entry>Dump deriving output</entry>
2078               <entry>dynamic</entry>
2079               <entry>-</entry>
2080             </row>
2081             <row>
2082               <entry><option>-ddump-ds</option></entry>
2083               <entry>Dump desugarer output</entry>
2084               <entry>dynamic</entry>
2085               <entry>-</entry>
2086             </row>
2087             <row>
2088               <entry><option>-ddump-flatC</option></entry>
2089               <entry>Dump &ldquo;flat&rdquo; C</entry>
2090               <entry>dynamic</entry>
2091               <entry>-</entry>
2092             </row>
2093             <row>
2094               <entry><option>-ddump-foreign</option></entry>
2095               <entry>Dump <literal>foreign export</literal> stubs</entry>
2096               <entry>dynamic</entry>
2097               <entry>-</entry>
2098             </row>
2099             <row>
2100               <entry><option>-ddump-hpc</option></entry>
2101               <entry>Dump after instrumentation for program coverage</entry>
2102               <entry>dynamic</entry>
2103               <entry>-</entry>
2104             </row>
2105             <row>
2106               <entry><option>-ddump-inlinings</option></entry>
2107               <entry>Dump inlining info</entry>
2108               <entry>dynamic</entry>
2109               <entry>-</entry>
2110             </row>
2111             <row>
2112               <entry><option>-ddump-occur-anal</option></entry>
2113               <entry>Dump occurrence analysis output</entry>
2114               <entry>dynamic</entry>
2115               <entry>-</entry>
2116             </row>
2117             <row>
2118               <entry><option>-ddump-opt-cmm</option></entry>
2119               <entry>Dump the results of C-- to C-- optimising passes</entry>
2120               <entry>dynamic</entry>
2121               <entry>-</entry>
2122             </row>
2123             <row>
2124               <entry><option>-ddump-parsed</option></entry>
2125               <entry>Dump parse tree</entry>
2126               <entry>dynamic</entry>
2127               <entry>-</entry>
2128             </row>
2129             <row>
2130               <entry><option>-ddump-prep</option></entry>
2131               <entry>Dump prepared core</entry>
2132               <entry>dynamic</entry>
2133               <entry>-</entry>
2134             </row>
2135             <row>
2136               <entry><option>-ddump-rn</option></entry>
2137               <entry>Dump renamer output</entry>
2138               <entry>dynamic</entry>
2139               <entry>-</entry>
2140             </row>
2141             <row>
2142               <entry><option>-ddump-rules</option></entry>
2143               <entry>Dump rules</entry>
2144               <entry>dynamic</entry>
2145               <entry>-</entry>
2146             </row>
2147             <row>
2148               <entry><option>-ddump-simpl</option></entry>
2149               <entry>Dump final simplifier output</entry>
2150               <entry>dynamic</entry>
2151               <entry>-</entry>
2152             </row>
2153             <row>
2154               <entry><option>-ddump-simpl-phases</option></entry>
2155               <entry>Dump output from each simplifier phase</entry>
2156               <entry>dynamic</entry>
2157               <entry>-</entry>
2158             </row>
2159             <row>
2160               <entry><option>-ddump-simpl-iterations</option></entry>
2161               <entry>Dump output from each simplifier iteration</entry>
2162               <entry>dynamic</entry>
2163               <entry>-</entry>
2164             </row>
2165             <row>
2166               <entry><option>-ddump-spec</option></entry>
2167               <entry>Dump specialiser output</entry>
2168               <entry>dynamic</entry>
2169               <entry>-</entry>
2170             </row>
2171             <row>
2172               <entry><option>-ddump-splices</option></entry>
2173               <entry>Dump TH spliced expressions, and what they evaluate to</entry>
2174               <entry>dynamic</entry>
2175               <entry>-</entry>
2176             </row>
2177             <row>
2178               <entry><option>-ddump-stg</option></entry>
2179               <entry>Dump final STG</entry>
2180               <entry>dynamic</entry>
2181               <entry>-</entry>
2182             </row>
2183             <row>
2184               <entry><option>-ddump-stranal</option></entry>
2185               <entry>Dump strictness analyser output</entry>
2186               <entry>dynamic</entry>
2187               <entry>-</entry>
2188             </row>
2189             <row>
2190               <entry><option>-ddump-tc</option></entry>
2191               <entry>Dump typechecker output</entry>
2192               <entry>dynamic</entry>
2193               <entry>-</entry>
2194             </row>
2195             <row>
2196               <entry><option>-ddump-types</option></entry>
2197               <entry>Dump type signatures</entry>
2198               <entry>dynamic</entry>
2199               <entry>-</entry>
2200             </row>
2201             <row>
2202               <entry><option>-ddump-worker-wrapper</option></entry>
2203               <entry>Dump worker-wrapper output</entry>
2204               <entry>dynamic</entry>
2205               <entry>-</entry>
2206             </row>
2207             <row>
2208               <entry><option>-ddump-if-trace</option></entry>
2209               <entry>Trace interface files</entry>
2210               <entry>dynamic</entry>
2211               <entry>-</entry>
2212             </row>
2213             <row>
2214               <entry><option>-ddump-tc-trace</option></entry>
2215               <entry>Trace typechecker</entry>
2216               <entry>dynamic</entry>
2217               <entry>-</entry>
2218             </row>
2219             <row>
2220               <entry><option>-ddump-rn-trace</option></entry>
2221               <entry>Trace renamer</entry>
2222               <entry>dynamic</entry>
2223               <entry>-</entry>
2224             </row>
2225             <row>
2226               <entry><option>-ddump-rn-stats</option></entry>
2227               <entry>Renamer stats</entry>
2228               <entry>dynamic</entry>
2229               <entry>-</entry>
2230             </row>
2231             <row>
2232               <entry><option>-ddump-simpl-stats</option></entry>
2233               <entry>Dump simplifier stats</entry>
2234               <entry>dynamic</entry>
2235               <entry>-</entry>
2236             </row>
2237             <row>
2238               <entry><option>-dno-debug-output</option></entry>
2239               <entry>Suppress unsolicited debugging output</entry>
2240               <entry>static</entry>
2241               <entry>-</entry>
2242             </row>
2243             <row>
2244               <entry><option>-dppr-debug</option></entry>
2245               <entry>Turn on debug printing (more verbose)</entry>
2246               <entry>static</entry>
2247               <entry>-</entry>
2248             </row>
2249             <row>
2250               <entry><option>-dsuppress-uniques</option></entry>
2251               <entry>Suppress the printing of uniques in debug output (easier to use <command>diff</command>.</entry>
2252               <entry>static</entry>
2253               <entry>-</entry>
2254             </row>
2255             <row>
2256               <entry><option>-dppr-noprags</option></entry>
2257               <entry>Don't output pragma info in dumps</entry>
2258               <entry>static</entry>
2259               <entry>-</entry>
2260             </row>
2261             <row>
2262               <entry><option>-dppr-user-length</option></entry>
2263               <entry>Set the depth for printing expressions in error msgs</entry>
2264               <entry>static</entry>
2265               <entry>-</entry>
2266             </row>
2267             <row>
2268               <entry><option>-dsource-stats</option></entry>
2269               <entry>Dump haskell source stats</entry>
2270               <entry>dynamic</entry>
2271               <entry>-</entry>
2272             </row>
2273             <row>
2274               <entry><option>-dcmm-lint</option></entry>
2275               <entry>C-- pass sanity checking</entry>
2276               <entry>dynamic</entry>
2277               <entry>-</entry>
2278             </row>
2279             <row>
2280               <entry><option>-dstg-lint</option></entry>
2281               <entry>STG pass sanity checking</entry>
2282               <entry>dynamic</entry>
2283               <entry>-</entry>
2284             </row>
2285             <row>
2286               <entry><option>-dstg-stats</option></entry>
2287               <entry>Dump STG stats</entry>
2288               <entry>dynamic</entry>
2289               <entry>-</entry>
2290             </row>
2291             <row>
2292               <entry><option>-dverbose-core2core</option></entry>
2293               <entry>Show output from each core-to-core pass</entry>
2294               <entry>dynamic</entry>
2295               <entry>-</entry>
2296             </row>
2297             <row>
2298               <entry><option>-dverbose-stg2stg</option></entry>
2299               <entry>Show output from each STG-to-STG pass</entry>
2300               <entry>dynamic</entry>
2301               <entry>-</entry>
2302             </row>
2303             <row>
2304               <entry><option>-dshow-passes</option></entry>
2305               <entry>Print out each pass name as it happens</entry>
2306               <entry>dynamic</entry>
2307               <entry>-</entry>
2308             </row>
2309             <row>
2310               <entry><option>-dfaststring-stats</option></entry>
2311               <entry>Show statistics for fast string usage when finished</entry>
2312               <entry>dynamic</entry>
2313               <entry>-</entry>
2314             </row>
2315           </tbody>
2316         </tgroup>
2317       </informaltable>
2318     </sect2>
2319
2320     <sect2>
2321       <title>Misc compiler options</title>
2322
2323       <informaltable>
2324         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2325           <thead>
2326             <row>
2327               <entry>Flag</entry>
2328               <entry>Description</entry>
2329               <entry>Static/Dynamic</entry>
2330               <entry>Reverse</entry>
2331             </row>
2332           </thead>
2333           <tbody>
2334             <row>
2335               <entry><option>-fno-hi-version-check</option></entry>
2336               <entry>Don't complain about <literal>.hi</literal> file mismatches</entry>
2337               <entry>static</entry>
2338               <entry>-</entry>
2339             </row>
2340             <row>
2341               <entry><option>-dno-black-holing</option></entry>
2342               <entry>Turn off black holing (probably doesn't work)</entry>
2343               <entry>static</entry>
2344               <entry>-</entry>
2345             </row>
2346             <row>
2347               <entry><option>-fhistory-size</option></entry>
2348               <entry>Set simplification history size</entry>
2349               <entry>static</entry>
2350               <entry>-</entry>
2351             </row>
2352             <row>
2353               <entry><option>-funregisterised</option></entry>
2354               <entry>Unregisterised compilation (use <option>-unreg</option> instead)</entry>
2355               <entry>static</entry>
2356               <entry>-</entry>
2357             </row>
2358             <row>
2359               <entry><option>-fno-asm-mangling</option></entry>
2360               <entry>Turn off assembly mangling (use <option>-unreg</option> instead)</entry>
2361               <entry>dynamic</entry>
2362               <entry>-</entry>
2363             </row>
2364           </tbody>
2365         </tgroup>
2366       </informaltable>
2367     </sect2>
2368   </sect1>
2369
2370
2371 <!--
2372 Still to document:
2373
2374 Misc:
2375   ,  ( "H"                 , HasArg (setHeapSize . fromIntegral . decodeSize) )
2376
2377   -Bdir
2378 -->
2379
2380 <!-- Emacs stuff:
2381      ;;; Local Variables: ***
2382      ;;; mode: xml ***
2383      ;;; sgml-parent-document: ("users_guide.xml" "book" "chapter") ***
2384      ;;; End: ***
2385  -->