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             <row>
 603               <entry><option>-no-auto-link-packages</option></entry>
 604               <entry>Don't automatically link in the haskell98 package.</entry>
 605               <entry>dynamic</entry>
 606               <entry>-</entry>
 607             </row>
 608           </tbody>
 609         </tgroup>
 610       </informaltable>
 611     </sect2>
 612
 613     <sect2>
 614       <title>Language options</title>
 615
 616       <para>Language options can be enabled either by a command-line option
 617       <option>-Xblah</option>, or by a <literal>{-# LANGUAGE blah #-}</literal>
 618       pragma in the file itself.  See <xref linkend="options-language"/></para>
 619
 620       <informaltable>
 621         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 622           <thead>
 623             <row>
 624               <entry>Flag</entry>
 625               <entry>Description</entry>
 626               <entry>Static/Dynamic</entry>
 627               <entry>Reverse</entry>
 628             </row>
 629           </thead>
 630           <tbody>
 631             <row>
 632               <entry><option>-fglasgow-exts</option></entry>
 633               <entry>Enable most language extensions</entry>
 634               <entry>dynamic</entry>
 635               <entry><option>-fno-glasgow-exts</option></entry>
 636             </row>
 637             <row>
 638               <entry><option>-XOverlappingInstances</option></entry>
 639               <entry>Enable <link linkend="instance-overlap">overlapping instances</link></entry>
 640               <entry>dynamic</entry>
 641               <entry><option>-XNoOverlappingInstances</option></entry>
 642             </row>
 643             <row>
 644               <entry><option>-XIncoherentInstances</option></entry>
 645               <entry>Enable <link linkend="instance-overlap">incoherent instances</link>.
 646               Implies <option>-XOverlappingInstances</option> </entry>
 647               <entry>dynamic</entry>
 648               <entry><option>-XNoIncoherentInstances</option></entry>
 649             </row>
 650             <row>
 651               <entry><option>-XUndecidableInstances</option></entry>
 652               <entry>Enable <link linkend="undecidable-instances">undecidable instances</link></entry>
 653               <entry>dynamic</entry>
 654               <entry><option>-XNoUndecidableInstances</option></entry>
 655             </row>
 656             <row>
 657               <entry><option>-fcontext-stack=N</option><replaceable>n</replaceable></entry>
 658               <entry>set the <link linkend="undecidable-instances">limit for context reduction</link>. Default is 20.</entry>
 659               <entry>dynamic</entry>
 660               <entry></entry>
 661             </row>
 662             <row>
 663               <entry><option>-XArrows</option></entry>
 664               <entry>Enable <link linkend="arrow-notation">arrow
 665               notation</link> extension</entry>
 666               <entry>dynamic</entry>
 667               <entry><option>-XNoArrows</option></entry>
 668             </row>
 669             <row>
 670               <entry><option>-XDisambiguateRecordFields</option></entry>
 671               <entry>Enable <link linkend="disambiguate-fields">record
 672               field disambiguation</link></entry>
 673               <entry>dynamic</entry>
 674               <entry><option>-XNoDisambiguateRecordFields</option></entry>
 675             </row>
 676             <row>
 677               <entry><option>-XForeignFunctionInterface</option></entry>
 678               <entry>Enable <link linkend="ffi">foreign function interface</link> (implied by
 679               <option>-fglasgow-exts</option>)</entry>
 680               <entry>dynamic</entry>
 681               <entry><option>-XNoForeignFunctionInterface</option></entry>
 682             </row>
 683             <row>
 684               <entry><option>-XGenerics</option></entry>
 685               <entry>Enable <link linkend="generic-classes">generic classes</link></entry>
 686               <entry>dynamic</entry>
 687               <entry><option>-XNoGenerics</option></entry>
 688             </row>
 689             <row>
 690               <entry><option>-XImplicitParams</option></entry>
 691               <entry>Enable <link linkend="implicit-parameters">Implicit Parameters</link>.
 692               Implied by <option>-fglasgow-exts</option>.</entry>
 693               <entry>dynamic</entry>
 694               <entry><option>-XNoImplicitParams</option></entry>
 695             </row>
 696             <row>
 697               <entry><option>-firrefutable-tuples</option></entry>
 698               <entry>Make tuple pattern matching irrefutable</entry>
 699               <entry>dynamic</entry>
 700               <entry><option>-fno-irrefutable-tuples</option></entry>
 701             </row>
 702             <row>
 703               <entry><option>-XNoImplicitPrelude</option></entry>
 704               <entry>Don't implicitly <literal>import Prelude</literal></entry>
 705               <entry>dynamic</entry>
 706               <entry><option>-XImplicitPrelude</option></entry>
 707             </row>
 708             <row>
 709               <entry><option>-XNoMonomorphismRestriction</option></entry>
 710               <entry>Disable the <link linkend="monomorphism">monomorphism restriction</link></entry>
 711               <entry>dynamic</entry>
 712               <entry><option>-XMonomorphismRrestriction</option></entry>
 713             </row>
 714             <row>
 715               <entry><option>-XNoNPlusKPatterns</option></entry>
 716               <entry>Disable support for <literal>n+k</literal> patterns</entry>
 717               <entry>dynamic</entry>
 718               <entry><option>-XNPlusKPatterns</option></entry>
 719             </row>
 720             <row>
 721               <entry><option>-XNoMonoPatBinds</option></entry>
 722               <entry>Make <link linkend="monomorphism">pattern bindings polymorphic</link></entry>
 723               <entry>dynamic</entry>
 724               <entry><option>-XMonoPatBinds</option></entry>
 725             </row>
 726             <row>
 727               <entry><option>-XRelaxedPolyRec</option></entry>
 728               <entry>Relaxed checking for <link linkend="typing-binds">mutually-recursive polymorphic functions</link></entry>
 729               <entry>dynamic</entry>
 730               <entry><option>-XNoRelaxedPolyRec</option></entry>
 731             </row>
 732             <row>
 733               <entry><option>-XExtendedDefaultRules</option></entry>
 734               <entry>Use GHCi's <link linkend="extended-default-rules">extended default rules</link> in a normal module</entry>
 735               <entry>dynamic</entry>
 736               <entry><option>-XNoExtendedDefaultRules</option></entry>
 737             </row>
 738             <row>
 739               <entry><option>-XOverloadedStrings</option></entry>
 740               <entry>Enable <link linkend="overloaded-strings">overloaded string literals</link>.
 741               </entry>
 742               <entry>dynamic</entry>
 743               <entry><option>-XNoOverloadedStrings</option></entry>
 744             </row>
 745             <row>
 746               <entry><option>-XGADTs</option></entry>
 747               <entry>Enable <link linkend="gadt">generalised algebraic data types</link>.
 748               </entry>
 749               <entry>dynamic</entry>
 750               <entry><option>-XNoGADTs</option></entry>
 751             </row>
 752             <row>
 753               <entry><option>-XTypeFamilies</option></entry>
 754               <entry>Enable <link linkend="type-families">type families</link>.</entry>
 755               <entry>dynamic</entry>
 756               <entry><option>-XNoTypeFamilies</option></entry>
 757             </row>
 758             <row>
 759               <entry><option>-XScopedTypeVariables</option></entry>
 760               <entry>Enable <link linkend="scoped-type-variables">lexically-scoped type variables</link>.
 761               Implied by <option>-fglasgow-exts</option>.</entry>
 762               <entry>dynamic</entry>
 763               <entry><option>-XNoScopedTypeVariables</option></entry>
 764             </row>
 765             <row>
 766               <entry><option>-XMonoLocalBinds</option></entry>
 767               <entry>Enable <link linkend="mono-local-binds">do not generalise local bindings</link>.
 768               </entry>
 769               <entry>dynamic</entry>
 770               <entry><option>-XNoMonoLocalBinds</option></entry>
 771             </row>
 772             <row>
 773               <entry><option>-XTemplateHaskell</option></entry>
 774               <entry>Enable <link linkend="template-haskell">Template Haskell</link>.
 775                 No longer implied by <option>-fglasgow-exts</option>.</entry>
 776               <entry>dynamic</entry>
 777               <entry><option>-XNoTemplateHaskell</option></entry>
 778             </row>
 779             <row>
 780               <entry><option>-XQuasiQuotes</option></entry>
 781               <entry>Enable <link linkend="th-quasiquotation">quasiquotation</link>.</entry>
 782               <entry>dynamic</entry>
 783               <entry><option>-XNoQuasiQuotes</option></entry>
 784             </row>
 785             <row>
 786               <entry><option>-XBangPatterns</option></entry>
 787               <entry>Enable <link linkend="bang-patterns">bang patterns</link>.</entry>
 788               <entry>dynamic</entry>
 789               <entry><option>-XNoBangPatterns</option></entry>
 790             </row>
 791             <row>
 792               <entry><option>-XCPP</option></entry>
 793               <entry>Enable the <link linkend="c-pre-processor">C preprocessor</link>.</entry>
 794               <entry>dynamic</entry>
 795               <entry><option>-XNoCPP</option></entry>
 796             </row>
 797             <row>
 798               <entry><option>-XPatternGuards</option></entry>
 799               <entry>Enable <link linkend="pattern-guards">pattern guards</link>.</entry>
 800               <entry>dynamic</entry>
 801               <entry><option>-XNoPatternGuards</option></entry>
 802             </row>
 803             <row>
 804               <entry><option>-XViewPatterns</option></entry>
 805               <entry>Enable <link linkend="view-patterns">view patterns</link>.</entry>
 806               <entry>dynamic</entry>
 807               <entry><option>-XNoViewPatterns</option></entry>
 808             </row>
 809             <row>
 810               <entry><option>-XUnicodeSyntax</option></entry>
 811               <entry>Enable <link linkend="unicode-syntax">unicode syntax</link>.</entry>
 812               <entry>dynamic</entry>
 813               <entry><option>-XNoUnicodeSyntax</option></entry>
 814             </row>
 815             <row>
 816               <entry><option>-XMagicHash</option></entry>
 817               <entry>Allow "#" as a <link linkend="magic-hash">postfix modifier on identifiers</link>.</entry>
 818               <entry>dynamic</entry>
 819               <entry><option>-XNoMagicHash</option></entry>
 820             </row>
 821             <row>
 822               <entry><option>-XNewQualifiedOperators</option></entry>
 823               <entry>Enable <link linkend="new-qualified-operators">new
 824               qualified operator syntax</link></entry>
 825               <entry>dynamic</entry>
 826               <entry><option>-XNoNewQualifiedOperators</option></entry>
 827             </row>
 828             <row>
 829               <entry><option>-XExplicitForALl</option></entry>
 830               <entry>Enable <link linkend="explicit-foralls">explicit universal quantification</link>.
 831               Implied by <option>-XScopedTypeVariables</option>,
 832             <option>-XLiberalTypeSynonyms</option>,
 833             <option>-XRank2Types</option>,
 834             <option>-XRankNTypes</option>,
 835             <option>-XPolymorphicComponents</option>,
 836             <option>-XExistentialQuantification</option>
 837               </entry>
 838               <entry>dynamic</entry>
 839               <entry><option>-XNoExplicitForAll</option></entry>
 840             </row>
 841             <row>
 842               <entry><option>-XPolymorphicComponents</option></entry>
 843               <entry>Enable <link linkend="universal-quantification">polymorphic components for data constructors</link>.</entry>
 844               <entry>dynamic</entry>
 845               <entry><option>-XNoPolymorphicComponents</option></entry>
 846             </row>
 847             <row>
 848               <entry><option>-XRank2Types</option></entry>
 849               <entry>Enable <link linkend="universal-quantification">rank-2 types</link>.</entry>
 850               <entry>dynamic</entry>
 851               <entry><option>-XNoRank2Types</option></entry>
 852             </row>
 853             <row>
 854               <entry><option>-XRankNTypes</option></entry>
 855               <entry>Enable <link linkend="universal-quantification">rank-N types</link>.</entry>
 856               <entry>dynamic</entry>
 857               <entry><option>-XNoRankNTypes</option></entry>
 858             </row>
 859             <row>
 860               <entry><option>-XImpredicativeTypes</option></entry>
 861               <entry>Enable <link linkend="impredicative-polymorphism">impredicative types</link>.</entry>
 862               <entry>dynamic</entry>
 863               <entry><option>-XNoImpredicativeTypes</option></entry>
 864             </row>
 865             <row>
 866               <entry><option>-XExistentialQuantification</option></entry>
 867               <entry>Enable <link linkend="existential-quantification">existential quantification</link>.</entry>
 868               <entry>dynamic</entry>
 869               <entry><option>-XNoExistentialQuantification</option></entry>
 870             </row>
 871             <row>
 872               <entry><option>-XKindSignatures</option></entry>
 873               <entry>Enable <link linkend="kinding">kind signatures</link>.</entry>
 874               <entry>dynamic</entry>
 875               <entry><option>-XNoKindSignatures</option></entry>
 876             </row>
 877             <row>
 878               <entry><option>-XEmptyDataDecls</option></entry>
 879               <entry>Enable empty data declarations.</entry>
 880               <entry>dynamic</entry>
 881               <entry><option>-XNoEmptyDataDecls</option></entry>
 882             </row>
 883             <row>
 884               <entry><option>-XParallelListComp</option></entry>
 885               <entry>Enable <link linkend="parallel-list-comprehensions">parallel list comprehensions</link>.</entry>
 886               <entry>dynamic</entry>
 887               <entry><option>-XNoParallelListComp</option></entry>
 888             </row>
 889             <row>
 890               <entry><option>-XTransformListComp</option></entry>
 891               <entry>Enable <link linkend="generalised-list-comprehensions">generalised list comprehensions</link>.</entry>
 892               <entry>dynamic</entry>
 893               <entry><option>-XNoTransformListComp</option></entry>
 894             </row>
 895             <row>
 896               <entry><option>-XUnliftedFFITypes</option></entry>
 897               <entry>Enable unlifted FFI types.</entry>
 898               <entry>dynamic</entry>
 899               <entry><option>-XNoUnliftedFFITypes</option></entry>
 900             </row>
 901             <row>
 902               <entry><option>-XLiberalTypeSynonyms</option></entry>
 903               <entry>Enable <link linkend="type-synonyms">liberalised type synonyms</link>.</entry>
 904               <entry>dynamic</entry>
 905               <entry><option>-XNoLiberalTypeSynonyms</option></entry>
 906             </row>
 907             <row>
 908               <entry><option>-XTypeOperators</option></entry>
 909               <entry>Enable type operators.</entry>
 910               <entry>dynamic</entry>
 911               <entry><option>-XNoTypeOperators</option></entry>
 912             </row>
 913             <row>
 914               <entry><option>-XRecursiveDo</option></entry>
 915               <entry>Enable <link linkend="mdo-notation">recursive do (mdo) notation</link>.</entry>
 916               <entry>dynamic</entry>
 917               <entry><option>-XNoRecursiveDo</option></entry>
 918             </row>
 919             <row>
 920               <entry><option>-XPArr</option></entry>
 921               <entry>Enable parallel arrays.</entry>
 922               <entry>dynamic</entry>
 923               <entry><option>-XNoPArr</option></entry>
 924             </row>
 925             <row>
 926               <entry><option>-XRecordWildCards</option></entry>
 927               <entry>Enable <link linkend="record-wildcards">record wildcards</link>.</entry>
 928               <entry>dynamic</entry>
 929               <entry><option>-XNoRecordWildCards</option></entry>
 930             </row>
 931             <row>
 932               <entry><option>-XNamedFieldPuns</option></entry>
 933               <entry>Enable <link linkend="record-puns">record puns</link>.</entry>
 934               <entry>dynamic</entry>
 935               <entry><option>-XNoNamedFieldPuns</option></entry>
 936             </row>
 937             <row>
 938               <entry><option>-XDisambiguateRecordFields</option></entry>
 939               <entry>Enable  <link linkend="disambiguate-fields">record field disambiguation</link>. </entry>
 940               <entry>dynamic</entry>
 941               <entry><option>-XNoDisambiguateRecordFields</option></entry>
 942             </row>
 943             <row>
 944               <entry><option>-XUnboxedTuples</option></entry>
 945               <entry>Enable <link linkend="unboxed-tuples">unboxed tuples</link>.</entry>
 946               <entry>dynamic</entry>
 947               <entry><option>-XNoUnboxedTuples</option></entry>
 948             </row>
 949             <row>
 950               <entry><option>-XStandaloneDeriving</option></entry>
 951               <entry>Enable <link linkend="stand-alone-deriving">standalone deriving</link>.</entry>
 952               <entry>dynamic</entry>
 953               <entry><option>-XNoStandaloneDeriving</option></entry>
 954             </row>
 955             <row>
 956               <entry><option>-XDeriveDataTypeable</option></entry>
 957               <entry>Enable <link linkend="deriving-typeable">deriving for the Data and Typeable classes</link>.</entry>
 958               <entry>dynamic</entry>
 959               <entry><option>-XNoDeriveDataTypeable</option></entry>
 960             </row>
 961             <row>
 962               <entry><option>-XGeneralizedNewtypeDeriving</option></entry>
 963               <entry>Enable <link linkend="newtype-deriving">newtype deriving</link>.</entry>
 964               <entry>dynamic</entry>
 965               <entry><option>-XNoGeneralizedNewtypeDeriving</option></entry>
 966             </row>
 967             <row>
 968               <entry><option>-XTypeSynonymInstances</option></entry>
 969               <entry>Enable <link linkend="flexible-instance-head">type synonyms in instance heads</link>.</entry>
 970               <entry>dynamic</entry>
 971               <entry><option>-XNoTypeSynonymInstances</option></entry>
 972             </row>
 973             <row>
 974               <entry><option>-XFlexibleContexts</option></entry>
 975               <entry>Enable <link linkend="flexible-contexts">flexible contexts</link>.</entry>
 976               <entry>dynamic</entry>
 977               <entry><option>-XNoFlexibleContexts</option></entry>
 978             </row>
 979             <row>
 980               <entry><option>-XFlexibleInstances</option></entry>
 981               <entry>Enable <link linkend="instance-rules">flexible instances</link>.</entry>
 982               <entry>dynamic</entry>
 983               <entry><option>-XNoFlexibleInstances</option></entry>
 984             </row>
 985             <row>
 986               <entry><option>-XConstrainedClassMethods</option></entry>
 987               <entry>Enable <link linkend="class-method-types">constrained class methods</link>.</entry>
 988               <entry>dynamic</entry>
 989               <entry><option>-XNoConstrainedClassMethods</option></entry>
 990             </row>
 991             <row>
 992               <entry><option>-XMultiParamTypeClasses</option></entry>
 993               <entry>Enable <link linkend="multi-param-type-classes">multi parameter type classes</link>.</entry>
 994               <entry>dynamic</entry>
 995               <entry><option>-XNoMultiParamTypeClasses</option></entry>
 996             </row>
 997             <row>
 998               <entry><option>-XFunctionalDependencies</option></entry>
 999               <entry>Enable <link linkend="functional-dependencies">functional dependencies</link>.</entry>
1000               <entry>dynamic</entry>
1001               <entry><option>-XNoFunctionalDependencies</option></entry>
1002             </row>
1003             <row>
1004               <entry><option>-XPackageImports</option></entry>
1005               <entry>Enable <link linkend="package-imports">package-qualified imports</link>.</entry>
1006               <entry>dynamic</entry>
1007               <entry><option>-XNoPackageImports</option></entry>
1008             </row>
1009           </tbody>
1010         </tgroup>
1011       </informaltable>
1012     </sect2>
1013
1014     <sect2>
1015       <title>Warnings</title>
1016
1017       <para><xref linkend="options-sanity"/></para>
1018
1019     <informaltable>
1020       <tgroup cols="4" align="left" colsep="1" rowsep="1">
1021         <thead>
1022           <row>
1023             <entry>Flag</entry>
1024             <entry>Description</entry>
1025             <entry>Static/Dynamic</entry>
1026             <entry>Reverse</entry>
1027           </row>
1028         </thead>
1029         <tbody>
1030           <row>
1031             <entry><option>-W</option></entry>
1032             <entry>enable normal warnings</entry>
1033             <entry>dynamic</entry>
1034             <entry><option>-w</option></entry>
1035           </row>
1036           <row>
1037             <entry><option>-w</option></entry>
1038             <entry>disable all warnings</entry>
1039             <entry>dynamic</entry>
1040             <entry>-</entry>
1041           </row>
1042           <row>
1043             <entry><option>-Wall</option></entry>
1044             <entry>enable almost all warnings (details in <xref linkend="options-sanity"/>)</entry>
1045             <entry>dynamic</entry>
1046             <entry><option>-w</option></entry>
1047           </row>
1048           <row>
1049             <entry><option>-Werror</option></entry>
1050             <entry>make warnings fatal</entry>
1051             <entry>dynamic</entry>
1052             <entry>-Wwarn</entry>
1053           </row>
1054           <row>
1055             <entry><option>-Wwarn</option></entry>
1056             <entry>make warnings non-fatal</entry>
1057             <entry>dynamic</entry>
1058             <entry>-Werror</entry>
1059           </row>
1060
1061           <row>
1062             <entry><option>-fwarn-unrecognised-pragmas</option></entry>
1063             <entry>warn about uses of pragmas that GHC doesn't recognise</entry>
1064             <entry>dynamic</entry>
1065             <entry><option>-fno-warn-unrecognised-pragmas</option></entry>
1066           </row>
1067
1068           <row>
1069             <entry><option>-fwarn-warnings-deprecations</option></entry>
1070             <entry>warn about uses of functions &amp; types that have warnings or deprecated pragmas</entry>
1071             <entry>dynamic</entry>
1072             <entry><option>-fno-warn-warnings-deprecations</option></entry>
1073           </row>
1074
1075           <row>
1076             <entry><option>-fwarn-deprecated-flags</option></entry>
1077             <entry>warn about uses of commandline flags that are deprecated</entry>
1078             <entry>dynamic</entry>
1079             <entry><option>-fno-warn-deprecated-flags</option></entry>
1080           </row>
1081
1082           <row>
1083             <entry><option>-fwarn-duplicate-exports</option></entry>
1084             <entry>warn when an entity is exported multiple times</entry>
1085             <entry>dynamic</entry>
1086             <entry><option>-fno-warn-duplicate-exports</option></entry>
1087           </row>
1088
1089           <row>
1090             <entry><option>-fwarn-hi-shadowing</option></entry>
1091             <entry>warn when a <literal>.hi</literal> file in the
1092             current directory shadows a library</entry>
1093             <entry>dynamic</entry>
1094             <entry><option>-fno-warn-hi-shadowing</option></entry>
1095           </row>
1096
1097           <row>
1098             <entry><option>-fwarn-implicit-prelude</option></entry>
1099             <entry>warn when the Prelude is implicitly imported</entry>
1100             <entry>dynamic</entry>
1101             <entry><option>-fno-warn-implicit-prelude</option></entry>
1102           </row>
1103
1104           <row>
1105             <entry><option>-fwarn-incomplete-patterns</option></entry>
1106             <entry>warn when a pattern match could fail</entry>
1107             <entry>dynamic</entry>
1108             <entry><option>-fno-warn-incomplete-patterns</option></entry>
1109           </row>
1110
1111           <row>
1112             <entry><option>-fwarn-incomplete-record-updates</option></entry>
1113             <entry>warn when a record update could fail</entry>
1114             <entry>dynamic</entry>
1115             <entry><option>-fno-warn-incomplete-record-updates</option></entry>
1116           </row>
1117
1118           <row>
1119             <entry><option>-fwarn-missing-fields</option></entry>
1120             <entry>warn when fields of a record are uninitialised</entry>
1121             <entry>dynamic</entry>
1122             <entry><option>-fno-warn-missing-fields</option></entry>
1123           </row>
1124
1125           <row>
1126             <entry><option>-fwarn-missing-methods</option></entry>
1127             <entry>warn when class methods are undefined</entry>
1128             <entry>dynamic</entry>
1129             <entry><option>-fno-warn-missing-methods</option></entry>
1130           </row>
1131
1132           <row>
1133             <entry><option>-fwarn-missing-signatures</option></entry>
1134             <entry>warn about top-level functions without signatures</entry>
1135             <entry>dynamic</entry>
1136             <entry><option>-fno-warn-missing-signatures</option></entry>
1137           </row>
1138
1139           <row>
1140             <entry><option>-fwarn-name-shadowing</option></entry>
1141             <entry>warn when names are shadowed</entry>
1142             <entry>dynamic</entry>
1143             <entry><option>-fno-warn-name-shadowing</option></entry>
1144           </row>
1145
1146           <row>
1147             <entry><option>-fwarn-orphans</option></entry>
1148             <entry>warn when the module contains <link linkend="orphan-modules">orphan instance declarations
1149             or rewrite rules</link></entry>
1150             <entry>dynamic</entry>
1151             <entry><option>-fno-warn-orphans</option></entry>
1152           </row>
1153
1154           <row>
1155             <entry><option>-fwarn-overlapping-patterns</option></entry>
1156             <entry>warn about overlapping patterns</entry>
1157             <entry>dynamic</entry>
1158             <entry><option>-fno-warn-overlapping-patterns</option></entry>
1159           </row>
1160
1161           <row>
1162             <entry><option>-fwarn-simple-patterns</option></entry>
1163             <entry>warn about lambda-patterns that can fail</entry>
1164             <entry>dynamic</entry>
1165             <entry><option>-fno-warn-simple-patterns</option></entry>
1166           </row>
1167
1168           <row>
1169             <entry><option>-fwarn-tabs</option></entry>
1170             <entry>warn if there are tabs in the source file</entry>
1171             <entry>dynamic</entry>
1172             <entry><option>-fno-warn-tabs</option></entry>
1173           </row>
1174
1175           <row>
1176             <entry><option>-fwarn-type-defaults</option></entry>
1177             <entry>warn when defaulting happens</entry>
1178             <entry>dynamic</entry>
1179             <entry><option>-fno-warn-type-defaults</option></entry>
1180           </row>
1181
1182           <row>
1183             <entry><option>-fwarn-monomorphism-restriction</option></entry>
1184             <entry>warn when the Monomorphism Restriction is applied</entry>
1185             <entry>dynamic</entry>
1186             <entry><option>-fno-warn-monomorphism-restriction</option></entry>
1187           </row>
1188
1189           <row>
1190             <entry><option>-fwarn-unused-binds</option></entry>
1191             <entry>warn about bindings that are unused</entry>
1192             <entry>dynamic</entry>
1193             <entry><option>-fno-warn-unused-binds</option></entry>
1194           </row>
1195
1196           <row>
1197             <entry><option>-fwarn-unused-imports</option></entry>
1198             <entry>warn about unnecessary imports</entry>
1199             <entry>dynamic</entry>
1200             <entry><option>-fno-warn-unused-imports</option></entry>
1201           </row>
1202
1203           <row>
1204             <entry><option>-fwarn-unused-matches</option></entry>
1205             <entry>warn about variables in patterns that aren't used</entry>
1206             <entry>dynamic</entry>
1207             <entry><option>-fno-warn-unused-matches</option></entry>
1208           </row>
1209
1210           <row>
1211             <entry><option>-fwarn-unused-do-bind</option></entry>
1212             <entry>warn about do bindings that appear to throw away values of types other than <literal>()</literal></entry>
1213             <entry>dynamic</entry>
1214             <entry><option>-fno-warn-unused-do-bind</option></entry>
1215           </row>
1216
1217           <row>
1218             <entry><option>-fwarn-wrong-do-bind</option></entry>
1219             <entry>warn about do bindings that appear to throw away monadic values that you should have bound instead</entry>
1220             <entry>dynamic</entry>
1221             <entry><option>-fno-warn-wrong-do-bind</option></entry>
1222           </row>
1223
1224           </tbody>
1225         </tgroup>
1226       </informaltable>
1227
1228     </sect2>
1229     <sect2>
1230       <title>Optimisation levels</title>
1231
1232       <para><xref linkend="options-optimise"/></para>
1233
1234       <informaltable>
1235         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1236           <thead>
1237             <row>
1238               <entry>Flag</entry>
1239               <entry>Description</entry>
1240               <entry>Static/Dynamic</entry>
1241               <entry>Reverse</entry>
1242             </row>
1243           </thead>
1244           <tbody>
1245             <row>
1246               <entry><option>-O</option></entry>
1247               <entry>Enable default optimisation (level 1)</entry>
1248               <entry>dynamic</entry>
1249               <entry><option>-O0</option></entry>
1250             </row>
1251             <row>
1252               <entry><option>-O</option><replaceable>n</replaceable></entry>
1253               <entry>Set optimisation level <replaceable>n</replaceable></entry>
1254               <entry>dynamic</entry>
1255               <entry><option>-O0</option></entry>
1256             </row>
1257           </tbody>
1258         </tgroup>
1259       </informaltable>
1260
1261     </sect2>
1262     <sect2>
1263       <title>Individual optimisations</title>
1264
1265       <para><xref linkend="options-f"/></para>
1266
1267       <informaltable>
1268         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1269           <thead>
1270             <row>
1271               <entry>Flag</entry>
1272               <entry>Description</entry>
1273               <entry>Static/Dynamic</entry>
1274               <entry>Reverse</entry>
1275             </row>
1276           </thead>
1277           <tbody>
1278             <row>
1279               <entry><option>-fcase-merge</option></entry>
1280               <entry>Enable case-merging. Implied by <option>-O</option>.</entry>
1281               <entry>dynamic</entry>
1282               <entry><option>-fno-case-merge</option></entry>
1283             </row>
1284
1285             <row>
1286               <entry><option>-fdicts-strict</option></entry>
1287               <entry>Make dictionaries strict</entry>
1288               <entry>static</entry>
1289               <entry><option>-fno-dicts-strict</option></entry>
1290             </row>
1291
1292             <row>
1293               <entry><option>-fmethod-sharing</option></entry>
1294               <entry>Share specialisations of overloaded functions (default)</entry>
1295               <entry>dynamic</entry>
1296               <entry><option>-fno-method-sharing</option></entry>
1297             </row>
1298
1299             <row>
1300               <entry><option>-fdo-eta-reduction</option></entry>
1301               <entry>Enable eta-reduction. Implied by <option>-O</option>.</entry>
1302               <entry>dynamic</entry>
1303               <entry><option>-fno-do-eta-reduction</option></entry>
1304             </row>
1305
1306             <row>
1307               <entry><option>-fdo-lambda-eta-expansion</option></entry>
1308               <entry>Enable lambda eta-reduction</entry>
1309               <entry>dynamic</entry>
1310               <entry><option>-fno-do-lambda-eta-expansion</option></entry>
1311             </row>
1312
1313             <row>
1314               <entry><option>-fexcess-precision</option></entry>
1315               <entry>Enable excess intermediate precision</entry>
1316               <entry>dynamic</entry>
1317               <entry><option>-fno-excess-precision</option></entry>
1318             </row>
1319
1320             <row>
1321               <entry><option>-fignore-asserts</option></entry>
1322               <entry>Ignore assertions in the source</entry>
1323               <entry>dynamic</entry>
1324               <entry><option>-fno-ignore-asserts</option></entry>
1325             </row>
1326
1327             <row>
1328               <entry><option>-fignore-interface-pragmas</option></entry>
1329               <entry>Ignore pragmas in interface files</entry>
1330               <entry>dynamic</entry>
1331               <entry><option>-fno-ignore-interface-pragmas</option></entry>
1332             </row>
1333
1334             <row>
1335               <entry><option>-fomit-interface-pragmas</option></entry>
1336               <entry>Don't generate interface pragmas</entry>
1337               <entry>dynamic</entry>
1338               <entry><option>-fno-omit-interface-pragmas</option></entry>
1339             </row>
1340
1341             <row>
1342               <entry><option>-fmax-worker-args</option></entry>
1343               <entry>If a worker has that many arguments, none will be
1344                 unpacked anymore (default: 10)</entry>
1345               <entry>static</entry>
1346               <entry>-</entry>
1347             </row>
1348
1349             <row>
1350               <entry><option>-fsimplifier-phases</option></entry>
1351               <entry>Set the number of phases for the simplifier (default 2).
1352               Ignored with <option>-O0</option>.</entry>
1353               <entry>dynamic</entry>
1354               <entry>-</entry>
1355             </row>
1356
1357             <row>
1358               <entry><option>-fmax-simplifier-iterations</option></entry>
1359               <entry>Set the max iterations for the simplifier</entry>
1360               <entry>dynamic</entry>
1361               <entry>-</entry>
1362             </row>
1363
1364             <row>
1365               <entry><option>-fno-state-hack</option></entry>
1366               <entry>Turn off the "state hack" whereby any lambda with a real-world state token
1367               as argument is considered to be single-entry.  Hence OK to inline things inside it.</entry>
1368               <entry>static</entry>
1369               <entry>-</entry>
1370             </row>
1371
1372             <row>
1373               <entry><option>-fcse</option></entry>
1374               <entry>Turn on common sub-expression elimination. Implied by <option>-O</option>.</entry>
1375               <entry>dynamic</entry>
1376               <entry>-fno-cse</entry>
1377             </row>
1378
1379             <row>
1380               <entry><option>-fspecialise</option></entry>
1381               <entry>Turn on specialisation of overloaded functions. Implied by <option>-O</option>.</entry>
1382               <entry>dynamic</entry>
1383               <entry>-fno-specialise</entry>
1384             </row>
1385
1386             <row>
1387               <entry><option>-ffull-laziness</option></entry>
1388               <entry>Turn on full laziness (floating bindings outwards). Implied by <option>-O</option>.</entry>
1389               <entry>dynamic</entry>
1390               <entry>-fno-full-laziness</entry>
1391             </row>
1392
1393             <row>
1394               <entry><option>-ffloat-in</option></entry>
1395               <entry>Turn on the float-in transformation. Implied by <option>-O</option>.</entry>
1396               <entry>dynamic</entry>
1397               <entry>-fno-float-in</entry>
1398             </row>
1399
1400             <row>
1401               <entry><option>-fenable-rewrite-rules</option></entry>
1402               <entry>Switch on all rewrite rules (including rules
1403               generated by automatic specialisation of overloaded functions).
1404               Implied by <option>-O</option>. </entry>
1405               <entry>dynamic</entry>
1406               <entry><option>-fno-enable-rewrite-rules</option></entry>
1407             </row>
1408
1409             <row>
1410               <entry><option>-fstrictness</option></entry>
1411               <entry>Turn on strictness analysis. Implied by <option>-O</option>.</entry>
1412               <entry>dynamic</entry>
1413               <entry>-fno-strictness</entry>
1414             </row>
1415
1416             <row>
1417               <entry><option>-fstrictness=before</option>=<replaceable>n</replaceable></entry>
1418               <entry>Run an additional strictness analysis before simplifier
1419 phase <replaceable>n</replaceable></entry>
1420               <entry>dynamic</entry>
1421               <entry>-</entry>
1422             </row>
1423
1424             <row>
1425               <entry><option>-fspec-constr</option></entry>
1426               <entry>Turn on the SpecConstr transformation. Implied by <option>-O2</option>.</entry>
1427               <entry>dynamic</entry>
1428               <entry>-fno-spec-constr</entry>
1429             </row>
1430
1431             <row>
1432               <entry><option>-fspec-constr-threshold</option>=<replaceable>n</replaceable></entry>
1433               <entry>Set the size threshold for the SpecConstr transformation to <replaceable>n</replaceable> (default: 200)</entry>
1434               <entry>static</entry>
1435               <entry><option>-fno-spec-constr-threshold</option></entry>
1436             </row>
1437
1438             <row>
1439               <entry><option>-fspec-constr-count</option>=<replaceable>n</replaceable></entry>
1440               <entry>Set to <replaceable>n</replaceable> (default: 3) the maximum number of
1441                 specialisations that will be created for any one function
1442                 by the SpecConstr transformation</entry>
1443               <entry>static</entry>
1444               <entry><option>-fno-spec-constr-count</option></entry>
1445             </row>
1446
1447             <row>
1448               <entry><option>-fliberate-case</option></entry>
1449               <entry>Turn on the liberate-case transformation. Implied by <option>-O2</option>.</entry>
1450               <entry>dynamic</entry>
1451               <entry>-fno-liberate-case</entry>
1452             </row>
1453
1454             <row>
1455               <entry><option>-fstatic-argument-transformation</option></entry>
1456               <entry>Turn on the static argument transformation. Implied by <option>-O2</option>.</entry>
1457               <entry>dynamic</entry>
1458               <entry>-fno-static-argument-transformation</entry>
1459             </row>
1460
1461             <row>
1462               <entry><option>-fliberate-case-threshold</option>=<replaceable>n</replaceable></entry>
1463               <entry>Set the size threshold for the liberate-case transformation to <replaceable>n</replaceable> (default: 200)</entry>
1464               <entry>static</entry>
1465               <entry><option>-fno-liberate-case-threshold</option></entry>
1466             </row>
1467
1468             <row>
1469               <entry><option>-funbox-strict-fields</option></entry>
1470               <entry>Flatten strict constructor fields</entry>
1471               <entry>dynamic</entry>
1472               <entry><option>-fno-unbox-strict-fields</option></entry>
1473             </row>
1474
1475             <row>
1476               <entry><option>-funfolding-creation-threshold</option></entry>
1477               <entry>Tweak unfolding settings</entry>
1478               <entry>static</entry>
1479               <entry><option>-fno-unfolding-creation-threshold</option></entry>
1480             </row>
1481
1482             <row>
1483               <entry><option>-funfolding-fun-discount</option></entry>
1484               <entry>Tweak unfolding settings</entry>
1485               <entry>static</entry>
1486               <entry><option>-fno-unfolding-fun-discount</option></entry>
1487             </row>
1488
1489             <row>
1490               <entry><option>-funfolding-keeness-factor</option></entry>
1491               <entry>Tweak unfolding settings</entry>
1492               <entry>static</entry>
1493               <entry><option>-fno-unfolding-keeness-factor</option></entry>
1494             </row>
1495
1496             <row>
1497               <entry><option>-funfolding-use-threshold</option></entry>
1498               <entry>Tweak unfolding settings</entry>
1499               <entry>static</entry>
1500               <entry><option>-fno-unfolding-use-threshold</option></entry>
1501             </row>
1502
1503             <row>
1504               <entry><option>-fno-pre-inlining</option></entry>
1505               <entry>Turn off pre-inlining</entry>
1506               <entry>static</entry>
1507               <entry>-</entry>
1508             </row>
1509
1510             <row>
1511               <entry><option>-feager-blackholing</option></entry>
1512               <entry>Turn on <link linkend="parallel-compile-options">eager blackholing</link></entry>
1513               <entry>dynamic</entry>
1514               <entry>-</entry>
1515             </row>
1516           </tbody>
1517         </tgroup>
1518       </informaltable>
1519     </sect2>
1520
1521     <sect2>
1522       <title>Profiling options</title>
1523
1524       <para><xref linkend="profiling"/></para>
1525
1526       <informaltable>
1527         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1528           <thead>
1529             <row>
1530               <entry>Flag</entry>
1531               <entry>Description</entry>
1532               <entry>Static/Dynamic</entry>
1533               <entry>Reverse</entry>
1534             </row>
1535           </thead>
1536           <tbody>
1537             <row>
1538               <entry><option>-auto</option></entry>
1539               <entry>Auto-add <literal>_scc_</literal>s to all
1540               exported functions</entry>
1541               <entry>dynamic</entry>
1542               <entry><option>-no-auto</option></entry>
1543             </row>
1544             <row>
1545               <entry><option>-auto-all</option></entry>
1546               <entry>Auto-add <literal>_scc_</literal>s to all
1547               top-level functions</entry>
1548               <entry>dynamic</entry>
1549               <entry><option>-no-auto-all</option></entry>
1550             </row>
1551             <row>
1552               <entry><option>-caf-all</option></entry>
1553               <entry>Auto-add <literal>_scc_</literal>s to all CAFs</entry>
1554               <entry>dynamic</entry>
1555               <entry><option>-no-caf-all</option></entry>
1556             </row>
1557             <row>
1558               <entry><option>-prof</option></entry>
1559               <entry>Turn on profiling</entry>
1560               <entry>static</entry>
1561               <entry>-</entry>
1562             </row>
1563             <row>
1564               <entry><option>-ticky</option></entry>
1565               <entry><link linkend="ticky-ticky">Turn on ticky-ticky profiling</link></entry>
1566               <entry>static</entry>
1567               <entry>-</entry>
1568             </row>
1569           </tbody>
1570         </tgroup>
1571       </informaltable>
1572     </sect2>
1573
1574     <sect2>
1575       <title>Program coverage options</title>
1576
1577       <para><xref linkend="hpc"/></para>
1578
1579       <informaltable>
1580         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1581           <thead>
1582             <row>
1583               <entry>Flag</entry>
1584               <entry>Description</entry>
1585               <entry>Static/Dynamic</entry>
1586               <entry>Reverse</entry>
1587             </row>
1588           </thead>
1589           <tbody>
1590             <row>
1591               <entry><option>-fhpc</option></entry>
1592               <entry>Turn on Haskell program coverage instrumentation</entry>
1593               <entry>static</entry>
1594               <entry><option>-</option></entry>
1595             </row>
1596             <row>
1597               <entry><option>-hpcdir dir</option></entry>
1598               <entry>Directory to deposit .mix files during compilation (default is .hpc)</entry>
1599               <entry>dynamic</entry>
1600               <entry><option>-</option></entry>
1601             </row>
1602           </tbody>
1603         </tgroup>
1604       </informaltable>
1605     </sect2>
1606
1607     <sect2>
1608       <title>Haskell pre-processor options</title>
1609
1610       <para><xref linkend="pre-processor"/></para>
1611
1612       <informaltable>
1613         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1614           <thead>
1615             <row>
1616               <entry>Flag</entry>
1617               <entry>Description</entry>
1618               <entry>Static/Dynamic</entry>
1619               <entry>Reverse</entry>
1620             </row>
1621           </thead>
1622           <tbody>
1623             <row>
1624               <entry><option>-F</option></entry>
1625               <entry>
1626                   Enable the use of a pre-processor
1627                   (set with <option>-pgmF</option>)
1628               </entry>
1629               <entry>dynamic</entry>
1630               <entry>-</entry>
1631             </row>
1632           </tbody>
1633         </tgroup>
1634       </informaltable>
1635     </sect2>
1636
1637     <sect2>
1638       <title>C pre-processor options</title>
1639
1640       <para><xref linkend="c-pre-processor"/></para>
1641
1642       <informaltable>
1643         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1644           <thead>
1645             <row>
1646               <entry>Flag</entry>
1647               <entry>Description</entry>
1648               <entry>Static/Dynamic</entry>
1649               <entry>Reverse</entry>
1650             </row>
1651           </thead>
1652           <tbody>
1653             <row>
1654               <entry><option>-cpp</option></entry>
1655               <entry>Run the C pre-processor on Haskell source files</entry>
1656               <entry>dynamic</entry>
1657               <entry>-</entry>
1658             </row>
1659             <row>
1660               <entry><option>-D</option><replaceable>symbol</replaceable><optional>=<replaceable>value</replaceable></optional></entry>
1661               <entry>Define a symbol in the C pre-processor</entry>
1662               <entry>dynamic</entry>
1663               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1664             </row>
1665             <row>
1666               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1667               <entry>Undefine a symbol in the C pre-processor</entry>
1668               <entry>dynamic</entry>
1669               <entry>-</entry>
1670             </row>
1671             <row>
1672               <entry><option>-I</option><replaceable>dir</replaceable></entry>
1673               <entry>Add <replaceable>dir</replaceable> to the
1674               directory search list for <literal>#include</literal> files</entry>
1675               <entry>dynamic</entry>
1676               <entry>-</entry>
1677             </row>
1678           </tbody>
1679         </tgroup>
1680       </informaltable>
1681     </sect2>
1682
1683     <sect2>
1684       <title>Code generation options</title>
1685
1686       <para><xref linkend="options-codegen"/></para>
1687
1688       <informaltable>
1689         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1690           <thead>
1691             <row>
1692               <entry>Flag</entry>
1693               <entry>Description</entry>
1694               <entry>Static/Dynamic</entry>
1695               <entry>Reverse</entry>
1696             </row>
1697           </thead>
1698           <tbody>
1699             <row>
1700               <entry><option>-fasm</option></entry>
1701               <entry>Use the native code generator</entry>
1702               <entry>dynamic</entry>
1703               <entry>-fvia-C</entry>
1704             </row>
1705             <row>
1706               <entry><option>-fvia-C</option></entry>
1707               <entry>Compile via C</entry>
1708               <entry>dynamic</entry>
1709               <entry>-fasm</entry>
1710             </row>
1711             <row>
1712               <entry><option>-fno-code</option></entry>
1713               <entry>Omit code generation</entry>
1714               <entry>dynamic</entry>
1715               <entry>-</entry>
1716             </row>
1717             <row>
1718               <entry><option>-fbyte-code</option></entry>
1719               <entry>Generate byte-code</entry>
1720               <entry>dynamic</entry>
1721               <entry>-</entry>
1722             </row>
1723             <row>
1724               <entry><option>-fobject-code</option></entry>
1725               <entry>Generate object code</entry>
1726               <entry>dynamic</entry>
1727               <entry>-</entry>
1728             </row>
1729           </tbody>
1730         </tgroup>
1731       </informaltable>
1732     </sect2>
1733
1734     <sect2>
1735       <title>Linking options</title>
1736
1737       <para><xref linkend="options-linker"/></para>
1738
1739       <informaltable>
1740         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1741           <thead>
1742             <row>
1743               <entry>Flag</entry>
1744               <entry>Description</entry>
1745               <entry>Static/Dynamic</entry>
1746               <entry>Reverse</entry>
1747             </row>
1748           </thead>
1749           <tbody>
1750             <row>
1751               <entry><option>-shared</option></entry>
1752               <entry>Generate a shared library (as opposed to an executable)</entry>
1753               <entry>dynamic</entry>
1754               <entry>-</entry>
1755             </row>
1756             <row>
1757               <entry><option>-fPIC</option></entry>
1758               <entry>Generate position-independent code (where available)</entry>
1759               <entry>static</entry>
1760               <entry>-</entry>
1761             </row>
1762             <row>
1763               <entry><option>-dynamic</option></entry>
1764               <entry>Use dynamic Haskell libraries (if available)</entry>
1765               <entry>static</entry>
1766               <entry>-</entry>
1767             </row>
1768             <row>
1769               <entry><option>-dynload</option></entry>
1770               <entry>Selects one of a number of modes for finding shared
1771                 libraries at runtime.</entry>
1772               <entry>static</entry>
1773               <entry>-</entry>
1774             </row>
1775             <row>
1776               <entry><option>-framework</option> <replaceable>name</replaceable></entry>
1777               <entry>On Darwin/MacOS X only, link in the framework <replaceable>name</replaceable>.
1778                 This option corresponds to the <option>-framework</option> option for Apple's Linker.</entry>
1779               <entry>dynamic</entry>
1780               <entry>-</entry>
1781             </row>
1782             <row>
1783               <entry><option>-framework-path</option> <replaceable>name</replaceable></entry>
1784               <entry>On Darwin/MacOS X only, add <replaceable>dir</replaceable> to the list of
1785                 directories searched for frameworks.
1786                 This option corresponds to the <option>-F</option> option for Apple's Linker.</entry>
1787               <entry>dynamic</entry>
1788               <entry>-</entry>
1789             </row>
1790             <row>
1791               <entry><option>-l</option><replaceable>lib</replaceable></entry>
1792               <entry>Link in library <replaceable>lib</replaceable></entry>
1793               <entry>dynamic</entry>
1794               <entry>-</entry>
1795             </row>
1796             <row>
1797               <entry><option>-L</option><replaceable>dir</replaceable></entry>
1798               <entry>Add <replaceable>dir</replaceable> to the list of
1799               directories searched for libraries</entry>
1800               <entry>dynamic</entry>
1801               <entry>-</entry>
1802             </row>
1803             <row>
1804               <entry><option>-main-is</option></entry>
1805               <entry>Set main module and function</entry>
1806               <entry>dynamic</entry>
1807               <entry>-</entry>
1808             </row>
1809             <row>
1810               <entry><option>--mk-dll</option></entry>
1811               <entry>DLL-creation mode (Windows only)</entry>
1812               <entry>dynamic</entry>
1813               <entry>-</entry>
1814             </row>
1815             <row>
1816               <entry><option>-no-hs-main</option></entry>
1817               <entry>Don't assume this program contains <literal>main</literal></entry>
1818               <entry>dynamic</entry>
1819               <entry>-</entry>
1820             </row>
1821             <row>
1822               <entry><option>-rtsopts</option></entry>
1823               <entry>Allow the RTS behaviour to be tweaked via command-line
1824           flags and the <literal>GHCRTS</literal> environment
1825           variable.</entry>
1826               <entry>dynamic</entry>
1827               <entry>-</entry>
1828             </row>
1829             <row>
1830               <entry><option>-with-rtsopts=<replaceable>opts</replaceable></option></entry>
1831               <entry>Set the default RTS options to
1832           <replaceable>opts</replaceable>.</entry>
1833               <entry>dynamic</entry>
1834               <entry>-</entry>
1835             </row>
1836             <row>
1837               <entry><option>-no-link</option></entry>
1838               <entry>Omit linking</entry>
1839               <entry>dynamic</entry>
1840               <entry>-</entry>
1841             </row>
1842             <row>
1843               <entry><option>-split-objs</option></entry>
1844               <entry>Split objects (for libraries)</entry>
1845               <entry>dynamic</entry>
1846               <entry>-</entry>
1847             </row>
1848             <row>
1849               <entry><option>-static</option></entry>
1850               <entry>Use static Haskell libraries</entry>
1851               <entry>static</entry>
1852               <entry>-</entry>
1853             </row>
1854             <row>
1855               <entry><option>-threaded</option></entry>
1856               <entry>Use the threaded runtime</entry>
1857               <entry>static</entry>
1858               <entry>-</entry>
1859             </row>
1860             <row>
1861               <entry><option>-debug</option></entry>
1862               <entry>Use the debugging runtime</entry>
1863               <entry>static</entry>
1864               <entry>-</entry>
1865             </row>
1866             <row>
1867               <entry><option>-eventlog</option></entry>
1868               <entry>Enable runtime event tracing</entry>
1869               <entry>static</entry>
1870               <entry>-</entry>
1871             </row>
1872             <row>
1873               <entry><option>-fno-gen-manifest</option></entry>
1874               <entry>Do not generate a manifest file (Windows only)</entry>
1875               <entry>dynamic</entry>
1876               <entry>-</entry>
1877             </row>
1878             <row>
1879               <entry><option>-fno-embed-manifest</option></entry>
1880               <entry>Do not embed the manifest in the executable (Windows only)</entry>
1881               <entry>dynamic</entry>
1882               <entry>-</entry>
1883             </row>
1884             <row>
1885               <entry><option>-fno-shared-implib</option></entry>
1886               <entry>Don't generate an import library for a DLL (Windows only)</entry>
1887               <entry>dynamic</entry>
1888               <entry>-</entry>
1889             </row>
1890             <row>
1891               <entry><option>-dylib-install-name</option> <replaceable>path</replaceable></entry>
1892               <entry>Set the install name (via <literal>-install_name</literal> passed to Apple's
1893               linker), specifying the full install path of the library file. Any libraries
1894               or executables that link with it later will pick up that path as their
1895               runtime search location for it. (Darwin/MacOS X only)</entry>
1896               <entry>dynamic</entry>
1897               <entry>-</entry>
1898             </row>
1899           </tbody>
1900         </tgroup>
1901       </informaltable>
1902     </sect2>
1903
1904     <sect2>
1905       <title>Replacing phases</title>
1906
1907       <para><xref linkend="replacing-phases"/></para>
1908
1909       <informaltable>
1910         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1911           <thead>
1912             <row>
1913               <entry>Flag</entry>
1914               <entry>Description</entry>
1915               <entry>Static/Dynamic</entry>
1916               <entry>Reverse</entry>
1917             </row>
1918           </thead>
1919           <tbody>
1920             <row>
1921               <entry><option>-pgmL</option> <replaceable>cmd</replaceable></entry>
1922               <entry>Use <replaceable>cmd</replaceable> as the literate pre-processor</entry>
1923               <entry>dynamic</entry>
1924               <entry>-</entry>
1925             </row>
1926             <row>
1927               <entry><option>-pgmP</option> <replaceable>cmd</replaceable></entry>
1928               <entry>Use <replaceable>cmd</replaceable> as the C
1929               pre-processor (with <option>-cpp</option> only)</entry>
1930               <entry>dynamic</entry>
1931               <entry>-</entry>
1932             </row>
1933             <row>
1934               <entry><option>-pgmc</option> <replaceable>cmd</replaceable></entry>
1935               <entry>Use <replaceable>cmd</replaceable> as the C compiler</entry>
1936               <entry>dynamic</entry>
1937               <entry>-</entry>
1938             </row>
1939             <row>
1940               <entry><option>-pgmm</option> <replaceable>cmd</replaceable></entry>
1941               <entry>Use <replaceable>cmd</replaceable> as the mangler</entry>
1942               <entry>dynamic</entry>
1943               <entry>-</entry>
1944             </row>
1945             <row>
1946               <entry><option>-pgms</option> <replaceable>cmd</replaceable></entry>
1947               <entry>Use <replaceable>cmd</replaceable> as the splitter</entry>
1948               <entry>dynamic</entry>
1949               <entry>-</entry>
1950             </row>
1951             <row>
1952               <entry><option>-pgma</option> <replaceable>cmd</replaceable></entry>
1953               <entry>Use <replaceable>cmd</replaceable> as the assembler</entry>
1954               <entry>dynamic</entry>
1955               <entry>-</entry>
1956             </row>
1957             <row>
1958               <entry><option>-pgml</option> <replaceable>cmd</replaceable></entry>
1959               <entry>Use <replaceable>cmd</replaceable> as the linker</entry>
1960               <entry>dynamic</entry>
1961               <entry>-</entry>
1962             </row>
1963             <row>
1964               <entry><option>-pgmdll</option> <replaceable>cmd</replaceable></entry>
1965               <entry>Use <replaceable>cmd</replaceable> as the DLL generator</entry>
1966               <entry>dynamic</entry>
1967               <entry>-</entry>
1968             </row>
1969             <row>
1970               <entry><option>-pgmF</option> <replaceable>cmd</replaceable></entry>
1971               <entry>Use <replaceable>cmd</replaceable> as the pre-processor
1972               (with <option>-F</option> only)</entry>
1973               <entry>dynamic</entry>
1974               <entry>-</entry>
1975             </row>
1976             <row>
1977               <entry><option>-pgmwindres</option> <replaceable>cmd</replaceable></entry>
1978               <entry>Use <replaceable>cmd</replaceable> as the program for
1979                 embedding manifests on Windows.</entry>
1980               <entry>dynamic</entry>
1981               <entry>-</entry>
1982             </row>
1983           </tbody>
1984         </tgroup>
1985       </informaltable>
1986       <indexterm><primary><option>-pgmL</option></primary></indexterm>
1987       <indexterm><primary><option>-pgmP</option></primary></indexterm>
1988       <indexterm><primary><option>-pgmc</option></primary></indexterm>
1989       <indexterm><primary><option>-pgma</option></primary></indexterm>
1990       <indexterm><primary><option>-pgml</option></primary></indexterm>
1991       <indexterm><primary><option>-pgmdll</option></primary></indexterm>
1992       <indexterm><primary><option>-pgmF</option></primary></indexterm>
1993
1994     </sect2>
1995
1996     <sect2>
1997       <title>Forcing options to particular phases</title>
1998
1999       <para><xref linkend="forcing-options-through"/></para>
2000
2001       <informaltable>
2002         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2003           <thead>
2004             <row>
2005               <entry>Flag</entry>
2006               <entry>Description</entry>
2007               <entry>Static/Dynamic</entry>
2008               <entry>Reverse</entry>
2009             </row>
2010           </thead>
2011           <tbody>
2012             <row>
2013               <entry><option>-optL</option> <replaceable>option</replaceable></entry>
2014               <entry>pass <replaceable>option</replaceable> to the literate pre-processor</entry>
2015               <entry>dynamic</entry>
2016               <entry>-</entry>
2017             </row>
2018             <row>
2019               <entry><option>-optP</option> <replaceable>option</replaceable></entry>
2020               <entry>pass <replaceable>option</replaceable> to cpp (with
2021               <option>-cpp</option> only)</entry>
2022               <entry>dynamic</entry>
2023               <entry>-</entry>
2024             </row>
2025             <row>
2026               <entry><option>-optF</option> <replaceable>option</replaceable></entry>
2027               <entry>pass <replaceable>option</replaceable> to the
2028               custom pre-processor</entry>
2029               <entry>dynamic</entry>
2030               <entry>-</entry>
2031             </row>
2032             <row>
2033               <entry><option>-optc</option> <replaceable>option</replaceable></entry>
2034               <entry>pass <replaceable>option</replaceable> to the C compiler</entry>
2035               <entry>dynamic</entry>
2036               <entry>-</entry>
2037             </row>
2038             <row>
2039               <entry><option>-optm</option> <replaceable>option</replaceable></entry>
2040               <entry>pass <replaceable>option</replaceable> to the mangler</entry>
2041               <entry>dynamic</entry>
2042               <entry>-</entry>
2043             </row>
2044             <row>
2045               <entry><option>-opta</option> <replaceable>option</replaceable></entry>
2046               <entry>pass <replaceable>option</replaceable> to the assembler</entry>
2047               <entry>dynamic</entry>
2048               <entry>-</entry>
2049             </row>
2050             <row>
2051               <entry><option>-optl</option> <replaceable>option</replaceable></entry>
2052               <entry>pass <replaceable>option</replaceable> to the linker</entry>
2053               <entry>dynamic</entry>
2054               <entry>-</entry>
2055             </row>
2056             <row>
2057               <entry><option>-optdll</option> <replaceable>option</replaceable></entry>
2058               <entry>pass <replaceable>option</replaceable> to the DLL generator</entry>
2059               <entry>dynamic</entry>
2060               <entry>-</entry>
2061             </row>
2062             <row>
2063               <entry><option>-optwindres</option> <replaceable>option</replaceable></entry>
2064               <entry>pass <replaceable>option</replaceable> to <literal>windres</literal>.</entry>
2065               <entry>dynamic</entry>
2066               <entry>-</entry>
2067             </row>
2068           </tbody>
2069         </tgroup>
2070       </informaltable>
2071     </sect2>
2072
2073     <sect2>
2074       <title>Platform-specific options</title>
2075
2076       <para><xref linkend="options-platform"/></para>
2077
2078       <informaltable>
2079         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2080           <thead>
2081             <row>
2082               <entry>Flag</entry>
2083               <entry>Description</entry>
2084               <entry>Static/Dynamic</entry>
2085               <entry>Reverse</entry>
2086             </row>
2087           </thead>
2088           <tbody>
2089             <row>
2090               <entry><option>-msse2</option></entry>
2091               <entry>(x86 only) Use SSE2 for floating point</entry>
2092               <entry>dynamic</entry>
2093               <entry>-</entry>
2094             </row>
2095           </tbody>
2096           <tbody>
2097             <row>
2098               <entry><option>-monly-[432]-regs</option></entry>
2099               <entry>(x86 only) give some registers back to the C compiler</entry>
2100               <entry>dynamic</entry>
2101               <entry>-</entry>
2102             </row>
2103           </tbody>
2104         </tgroup>
2105       </informaltable>
2106     </sect2>
2107
2108
2109     <sect2>
2110       <title>External core file options</title>
2111
2112       <para><xref linkend="ext-core"/></para>
2113
2114       <informaltable>
2115         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2116           <thead>
2117             <row>
2118               <entry>Flag</entry>
2119               <entry>Description</entry>
2120               <entry>Static/Dynamic</entry>
2121               <entry>Reverse</entry>
2122             </row>
2123           </thead>
2124           <tbody>
2125             <row>
2126               <entry><option>-fext-core</option></entry>
2127               <entry>Generate <filename>.hcr</filename> external Core files</entry>
2128               <entry>dynamic</entry>
2129               <entry>-</entry>
2130             </row>
2131           </tbody>
2132         </tgroup>
2133       </informaltable>
2134     </sect2>
2135
2136
2137     <sect2>
2138       <title>Compiler debugging options</title>
2139
2140       <para><xref linkend="options-debugging"/></para>
2141
2142       <informaltable>
2143         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2144           <thead>
2145             <row>
2146               <entry>Flag</entry>
2147               <entry>Description</entry>
2148               <entry>Static/Dynamic</entry>
2149               <entry>Reverse</entry>
2150             </row>
2151           </thead>
2152           <tbody>
2153             <row>
2154               <entry><option>-dcore-lint</option></entry>
2155               <entry>Turn on internal sanity checking</entry>
2156               <entry>dynamic</entry>
2157               <entry>-</entry>
2158             </row>
2159             <row>
2160               <entry><option>-ddump-asm</option></entry>
2161               <entry>Dump assembly</entry>
2162               <entry>dynamic</entry>
2163               <entry>-</entry>
2164             </row>
2165             <row>
2166               <entry><option>-ddump-bcos</option></entry>
2167               <entry>Dump interpreter byte code</entry>
2168               <entry>dynamic</entry>
2169               <entry>-</entry>
2170             </row>
2171             <row>
2172               <entry><option>-ddump-cmm</option></entry>
2173               <entry>Dump C-- output</entry>
2174               <entry>dynamic</entry>
2175               <entry>-</entry>
2176             </row>
2177             <row>
2178               <entry><option>-ddump-cpranal</option></entry>
2179               <entry>Dump output from CPR analysis</entry>
2180               <entry>dynamic</entry>
2181               <entry>-</entry>
2182             </row>
2183             <row>
2184               <entry><option>-ddump-cse</option></entry>
2185               <entry>Dump CSE output</entry>
2186               <entry>dynamic</entry>
2187               <entry>-</entry>
2188             </row>
2189             <row>
2190               <entry><option>-ddump-deriv</option></entry>
2191               <entry>Dump deriving output</entry>
2192               <entry>dynamic</entry>
2193               <entry>-</entry>
2194             </row>
2195             <row>
2196               <entry><option>-ddump-ds</option></entry>
2197               <entry>Dump desugarer output</entry>
2198               <entry>dynamic</entry>
2199               <entry>-</entry>
2200             </row>
2201             <row>
2202               <entry><option>-ddump-flatC</option></entry>
2203               <entry>Dump &ldquo;flat&rdquo; C</entry>
2204               <entry>dynamic</entry>
2205               <entry>-</entry>
2206             </row>
2207             <row>
2208               <entry><option>-ddump-foreign</option></entry>
2209               <entry>Dump <literal>foreign export</literal> stubs</entry>
2210               <entry>dynamic</entry>
2211               <entry>-</entry>
2212             </row>
2213             <row>
2214               <entry><option>-ddump-hpc</option></entry>
2215               <entry>Dump after instrumentation for program coverage</entry>
2216               <entry>dynamic</entry>
2217               <entry>-</entry>
2218             </row>
2219             <row>
2220               <entry><option>-ddump-inlinings</option></entry>
2221               <entry>Dump inlining info</entry>
2222               <entry>dynamic</entry>
2223               <entry>-</entry>
2224             </row>
2225             <row>
2226               <entry><option>-ddump-occur-anal</option></entry>
2227               <entry>Dump occurrence analysis output</entry>
2228               <entry>dynamic</entry>
2229               <entry>-</entry>
2230             </row>
2231             <row>
2232               <entry><option>-ddump-opt-cmm</option></entry>
2233               <entry>Dump the results of C-- to C-- optimising passes</entry>
2234               <entry>dynamic</entry>
2235               <entry>-</entry>
2236             </row>
2237             <row>
2238               <entry><option>-ddump-parsed</option></entry>
2239               <entry>Dump parse tree</entry>
2240               <entry>dynamic</entry>
2241               <entry>-</entry>
2242             </row>
2243             <row>
2244               <entry><option>-ddump-prep</option></entry>
2245               <entry>Dump prepared core</entry>
2246               <entry>dynamic</entry>
2247               <entry>-</entry>
2248             </row>
2249             <row>
2250               <entry><option>-ddump-rn</option></entry>
2251               <entry>Dump renamer output</entry>
2252               <entry>dynamic</entry>
2253               <entry>-</entry>
2254             </row>
2255             <row>
2256               <entry><option>-ddump-rules</option></entry>
2257               <entry>Dump rules</entry>
2258               <entry>dynamic</entry>
2259               <entry>-</entry>
2260             </row>
2261             <row>
2262               <entry><option>-ddump-simpl</option></entry>
2263               <entry>Dump final simplifier output</entry>
2264               <entry>dynamic</entry>
2265               <entry>-</entry>
2266             </row>
2267             <row>
2268               <entry><option>-ddump-simpl-phases</option></entry>
2269               <entry>Dump output from each simplifier phase</entry>
2270               <entry>dynamic</entry>
2271               <entry>-</entry>
2272             </row>
2273             <row>
2274               <entry><option>-ddump-simpl-iterations</option></entry>
2275               <entry>Dump output from each simplifier iteration</entry>
2276               <entry>dynamic</entry>
2277               <entry>-</entry>
2278             </row>
2279             <row>
2280               <entry><option>-ddump-spec</option></entry>
2281               <entry>Dump specialiser output</entry>
2282               <entry>dynamic</entry>
2283               <entry>-</entry>
2284             </row>
2285             <row>
2286               <entry><option>-ddump-splices</option></entry>
2287               <entry>Dump TH spliced expressions, and what they evaluate to</entry>
2288               <entry>dynamic</entry>
2289               <entry>-</entry>
2290             </row>
2291             <row>
2292               <entry><option>-ddump-stg</option></entry>
2293               <entry>Dump final STG</entry>
2294               <entry>dynamic</entry>
2295               <entry>-</entry>
2296             </row>
2297             <row>
2298               <entry><option>-ddump-stranal</option></entry>
2299               <entry>Dump strictness analyser output</entry>
2300               <entry>dynamic</entry>
2301               <entry>-</entry>
2302             </row>
2303             <row>
2304               <entry><option>-ddump-tc</option></entry>
2305               <entry>Dump typechecker output</entry>
2306               <entry>dynamic</entry>
2307               <entry>-</entry>
2308             </row>
2309             <row>
2310               <entry><option>-ddump-types</option></entry>
2311               <entry>Dump type signatures</entry>
2312               <entry>dynamic</entry>
2313               <entry>-</entry>
2314             </row>
2315             <row>
2316               <entry><option>-ddump-worker-wrapper</option></entry>
2317               <entry>Dump worker-wrapper output</entry>
2318               <entry>dynamic</entry>
2319               <entry>-</entry>
2320             </row>
2321             <row>
2322               <entry><option>-ddump-if-trace</option></entry>
2323               <entry>Trace interface files</entry>
2324               <entry>dynamic</entry>
2325               <entry>-</entry>
2326             </row>
2327             <row>
2328               <entry><option>-ddump-tc-trace</option></entry>
2329               <entry>Trace typechecker</entry>
2330               <entry>dynamic</entry>
2331               <entry>-</entry>
2332             </row>
2333             <row>
2334               <entry><option>-ddump-rn-trace</option></entry>
2335               <entry>Trace renamer</entry>
2336               <entry>dynamic</entry>
2337               <entry>-</entry>
2338             </row>
2339             <row>
2340               <entry><option>-ddump-rn-stats</option></entry>
2341               <entry>Renamer stats</entry>
2342               <entry>dynamic</entry>
2343               <entry>-</entry>
2344             </row>
2345             <row>
2346               <entry><option>-ddump-simpl-stats</option></entry>
2347               <entry>Dump simplifier stats</entry>
2348               <entry>dynamic</entry>
2349               <entry>-</entry>
2350             </row>
2351             <row>
2352               <entry><option>-dno-debug-output</option></entry>
2353               <entry>Suppress unsolicited debugging output</entry>
2354               <entry>static</entry>
2355               <entry>-</entry>
2356             </row>
2357             <row>
2358               <entry><option>-dppr-debug</option></entry>
2359               <entry>Turn on debug printing (more verbose)</entry>
2360               <entry>static</entry>
2361               <entry>-</entry>
2362             </row>
2363             <row>
2364               <entry><option>-dsuppress-uniques</option></entry>
2365               <entry>Suppress the printing of uniques in debug output (easier to use <command>diff</command>.</entry>
2366               <entry>static</entry>
2367               <entry>-</entry>
2368             </row>
2369             <row>
2370               <entry><option>-dsuppress-coercions</option></entry>
2371               <entry>Suppress the printing of coercions in Core dumps to make them shorter.</entry>
2372               <entry>static</entry>
2373               <entry>-</entry>
2374             </row>
2375             <row>
2376               <entry><option>-dppr-noprags</option></entry>
2377               <entry>Don't output pragma info in dumps</entry>
2378               <entry>static</entry>
2379               <entry>-</entry>
2380             </row>
2381             <row>
2382               <entry><option>-dppr-user-length</option></entry>
2383               <entry>Set the depth for printing expressions in error msgs</entry>
2384               <entry>static</entry>
2385               <entry>-</entry>
2386             </row>
2387             <row>
2388               <entry><option>-dsource-stats</option></entry>
2389               <entry>Dump haskell source stats</entry>
2390               <entry>dynamic</entry>
2391               <entry>-</entry>
2392             </row>
2393             <row>
2394               <entry><option>-dcmm-lint</option></entry>
2395               <entry>C-- pass sanity checking</entry>
2396               <entry>dynamic</entry>
2397               <entry>-</entry>
2398             </row>
2399             <row>
2400               <entry><option>-dstg-lint</option></entry>
2401               <entry>STG pass sanity checking</entry>
2402               <entry>dynamic</entry>
2403               <entry>-</entry>
2404             </row>
2405             <row>
2406               <entry><option>-dstg-stats</option></entry>
2407               <entry>Dump STG stats</entry>
2408               <entry>dynamic</entry>
2409               <entry>-</entry>
2410             </row>
2411             <row>
2412               <entry><option>-dverbose-core2core</option></entry>
2413               <entry>Show output from each core-to-core pass</entry>
2414               <entry>dynamic</entry>
2415               <entry>-</entry>
2416             </row>
2417             <row>
2418               <entry><option>-dverbose-stg2stg</option></entry>
2419               <entry>Show output from each STG-to-STG pass</entry>
2420               <entry>dynamic</entry>
2421               <entry>-</entry>
2422             </row>
2423             <row>
2424               <entry><option>-dshow-passes</option></entry>
2425               <entry>Print out each pass name as it happens</entry>
2426               <entry>dynamic</entry>
2427               <entry>-</entry>
2428             </row>
2429             <row>
2430               <entry><option>-dfaststring-stats</option></entry>
2431               <entry>Show statistics for fast string usage when finished</entry>
2432               <entry>dynamic</entry>
2433               <entry>-</entry>
2434             </row>
2435           </tbody>
2436         </tgroup>
2437       </informaltable>
2438     </sect2>
2439
2440     <sect2>
2441       <title>Misc compiler options</title>
2442
2443       <informaltable>
2444         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2445           <thead>
2446             <row>
2447               <entry>Flag</entry>
2448               <entry>Description</entry>
2449               <entry>Static/Dynamic</entry>
2450               <entry>Reverse</entry>
2451             </row>
2452           </thead>
2453           <tbody>
2454             <row>
2455               <entry><option>-fno-hi-version-check</option></entry>
2456               <entry>Don't complain about <literal>.hi</literal> file mismatches</entry>
2457               <entry>static</entry>
2458               <entry>-</entry>
2459             </row>
2460             <row>
2461               <entry><option>-dno-black-holing</option></entry>
2462               <entry>Turn off black holing (probably doesn't work)</entry>
2463               <entry>static</entry>
2464               <entry>-</entry>
2465             </row>
2466             <row>
2467               <entry><option>-fhistory-size</option></entry>
2468               <entry>Set simplification history size</entry>
2469               <entry>static</entry>
2470               <entry>-</entry>
2471             </row>
2472             <row>
2473               <entry><option>-funregisterised</option></entry>
2474               <entry>Unregisterised compilation (use <option>-unreg</option> instead)</entry>
2475               <entry>static</entry>
2476               <entry>-</entry>
2477             </row>
2478             <row>
2479               <entry><option>-fno-asm-mangling</option></entry>
2480               <entry>Turn off assembly mangling (use <option>-unreg</option> instead)</entry>
2481               <entry>dynamic</entry>
2482               <entry>-</entry>
2483             </row>
2484           </tbody>
2485         </tgroup>
2486       </informaltable>
2487     </sect2>
2488   </sect1>
2489
2490
2491 <!--
2492 Still to document:
2493
2494 Misc:
2495   ,  ( "H"                 , HasArg (setHeapSize . fromIntegral . decodeSize) )
2496
2497   -Bdir
2498 -->
2499
2500 <!-- Emacs stuff:
2501      ;;; Local Variables: ***
2502      ;;; mode: xml ***
2503      ;;; sgml-parent-document: ("users_guide.xml" "book" "chapter") ***
2504      ;;; End: ***
2505  -->