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-extensions</option> or <option>&ndash;&ndash;supported-languages</option></entry>
  64               <entry>display the supported languages and 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-llvm-file</option> or
 315                  <option>-keep-llvm-files</option></entry>
 316               <entry>retain intermediate LLVM <literal>.ll</literal> files</entry>
 317               <entry>dynamic</entry>
 318               <entry>-</entry>
 319             </row>
 320             <row>
 321               <entry><option>-keep-s-file</option> or
 322                  <option>-keep-s-files</option></entry>
 323               <entry>retain intermediate <literal>.s</literal> files</entry>
 324               <entry>dynamic</entry>
 325               <entry>-</entry>
 326             </row>
 327             <row>
 328               <entry><option>-keep-raw-s-file</option> or
 329                  <option>-keep-raw-s-files</option></entry>
 330               <entry>retain intermediate <literal>.raw_s</literal> files</entry>
 331               <entry>dynamic</entry>
 332               <entry>-</entry>
 333             </row>
 334             <row>
 335               <entry><option>-keep-tmp-files</option></entry>
 336               <entry>retain all intermediate temporary files</entry>
 337               <entry>dynamic</entry>
 338               <entry>-</entry>
 339             </row>
 340           </tbody>
 341         </tgroup>
 342       </informaltable>
 343     </sect2>
 344
 345     <sect2>
 346       <title>Temporary files</title>
 347
 348       <para><xref linkend="temp-files"/></para>
 349
 350       <informaltable>
 351         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 352           <thead>
 353             <row>
 354               <entry>Flag</entry>
 355               <entry>Description</entry>
 356               <entry>Static/Dynamic</entry>
 357               <entry>Reverse</entry>
 358             </row>
 359           </thead>
 360           <tbody>
 361             <row>
 362               <entry><option>-tmpdir</option></entry>
 363               <entry>set the directory for temporary files</entry>
 364               <entry>dynamic</entry>
 365               <entry>-</entry>
 366             </row>
 367           </tbody>
 368         </tgroup>
 369       </informaltable>
 370     </sect2>
 371
 372     <sect2>
 373       <title>Finding imports</title>
 374
 375       <para><xref linkend="search-path"/></para>
 376
 377       <informaltable>
 378         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 379           <thead>
 380             <row>
 381               <entry>Flag</entry>
 382
 383               <entry>Description</entry>
 384               <entry>Static/Dynamic</entry>
 385               <entry>Reverse</entry>
 386             </row>
 387           </thead>
 388           <tbody>
 389             <row>
 390               <entry><option>-i</option><replaceable>dir1</replaceable>:<replaceable>dir2</replaceable>:...</entry>
 391               <entry>add <replaceable>dir</replaceable>,
 392                   <replaceable>dir2</replaceable>, etc. to import path</entry>
 393               <entry>static/<literal>:set</literal></entry>
 394               <entry>-</entry>
 395             </row>
 396             <row>
 397               <entry><option>-i</option></entry>
 398               <entry>Empty the import directory list</entry>
 399               <entry>static/<literal>:set</literal></entry>
 400               <entry>-</entry>
 401             </row>
 402           </tbody>
 403         </tgroup>
 404       </informaltable>
 405     </sect2>
 406
 407     <sect2>
 408       <title>Interface file options</title>
 409
 410       <para><xref linkend="hi-options"/></para>
 411
 412       <informaltable>
 413         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 414           <thead>
 415             <row>
 416               <entry>Flag</entry>
 417
 418               <entry>Description</entry>
 419               <entry>Static/Dynamic</entry>
 420               <entry>Reverse</entry>
 421             </row>
 422           </thead>
 423           <tbody>
 424             <row>
 425               <entry><option>-ddump-hi</option></entry>
 426               <entry>Dump the new interface to stdout</entry>
 427               <entry>dynamic</entry>
 428               <entry>-</entry>
 429             </row>
 430             <row>
 431               <entry><option>-ddump-hi-diffs</option></entry>
 432               <entry>Show the differences vs. the old interface</entry>
 433               <entry>dynamic</entry>
 434               <entry>-</entry>
 435             </row>
 436             <row>
 437               <entry><option>-ddump-minimal-imports</option></entry>
 438               <entry>Dump a minimal set of imports</entry>
 439               <entry>dynamic</entry>
 440               <entry>-</entry>
 441             </row>
 442             <row>
 443               <entry><option>--show-iface</option> <replaceable>file</replaceable></entry>
 444               <entry>See <xref linkend="modes"/>.</entry>
 445             </row>
 446           </tbody>
 447         </tgroup>
 448       </informaltable>
 449     </sect2>
 450
 451     <sect2>
 452       <title>Recompilation checking</title>
 453
 454       <para><xref linkend="recomp"/></para>
 455
 456       <informaltable>
 457         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 458           <thead>
 459             <row>
 460               <entry>Flag</entry>
 461
 462               <entry>Description</entry>
 463               <entry>Static/Dynamic</entry>
 464               <entry>Reverse</entry>
 465             </row>
 466           </thead>
 467           <tbody>
 468             <row>
 469               <entry><option>-fforce-recomp</option></entry>
 470               <entry>Turn off recompilation checking; implied by any
 471               <option>-ddump-X</option> option</entry>
 472               <entry>dynamic</entry>
 473               <entry><option>-fno-force-recomp</option></entry>
 474             </row>
 475           </tbody>
 476         </tgroup>
 477       </informaltable>
 478     </sect2>
 479
 480     <sect2 id="interactive-mode-options">
 481       <title>Interactive-mode options</title>
 482
 483       <para><xref linkend="ghci-dot-files"/></para>
 484
 485       <informaltable>
 486         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 487           <thead>
 488             <row>
 489               <entry>Flag</entry>
 490               <entry>Description</entry>
 491               <entry>Static/Dynamic</entry>
 492               <entry>Reverse</entry>
 493             </row>
 494           </thead>
 495           <tbody>
 496             <row>
 497               <entry><option>-ignore-dot-ghci</option></entry>
 498               <entry>Disable reading of <filename>.ghci</filename> files</entry>
 499               <entry>static</entry>
 500               <entry>-</entry>
 501             </row>
 502             <row>
 503               <entry><option>-read-dot-ghci</option></entry>
 504               <entry>Enable reading of <filename>.ghci</filename> files</entry>
 505               <entry>static</entry>
 506               <entry>-</entry>
 507             </row>
 508             <row>
 509               <entry><option>-fbreak-on-exception</option></entry>
 510               <entry><link linkend="ghci-debugger-exceptions">Break on any exception thrown</link></entry>
 511               <entry>dynamic</entry>
 512               <entry><option>-fno-break-on-exception</option></entry>
 513             </row>
 514             <row>
 515               <entry><option>-fbreak-on-error</option></entry>
 516               <entry><link linkend="ghci-debugger-exceptions">Break on uncaught exceptions and errors</link></entry>
 517               <entry>dynamic</entry>
 518               <entry><option>-fno-break-on-error</option></entry>
 519             </row>
 520             <row>
 521               <entry><option>-fprint-evld-with-show</option></entry>
 522               <entry><link linkend="breakpoints">Enable usage of Show instances in <literal>:print</literal></link></entry>
 523               <entry>dynamic</entry>
 524               <entry><option>-fno-print-evld-with-show</option></entry>
 525             </row>
 526             <row>
 527               <entry><option>-fprint-bind-result</option></entry>
 528               <entry><link linkend="ghci-stmts">Turn on printing of binding results in GHCi</link></entry>
 529               <entry>dynamic</entry>
 530               <entry><option>-fno-print-bind-result</option></entry>
 531             </row>
 532             <row>
 533               <entry><option>-fno-print-bind-contents</option></entry>
 534               <entry><link linkend="breakpoints">Turn off printing of binding contents in GHCi</link></entry>
 535               <entry>dynamic</entry>
 536               <entry>-</entry>
 537             </row>
 538             <row>
 539               <entry><option>-fno-implicit-import-qualified</option></entry>
 540               <entry><link linkend="ghci-import-qualified">Turn off
 541               implicit qualified import of everything in GHCi</link></entry>
 542               <entry>dynamic</entry>
 543               <entry>-</entry>
 544             </row>
 545
 546           </tbody>
 547         </tgroup>
 548       </informaltable>
 549     </sect2>
 550
 551     <sect2>
 552       <title>Packages</title>
 553
 554       <para><xref linkend="packages"/></para>
 555
 556       <informaltable>
 557         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 558           <thead>
 559             <row>
 560               <entry>Flag</entry>
 561               <entry>Description</entry>
 562               <entry>Static/Dynamic</entry>
 563               <entry>Reverse</entry>
 564             </row>
 565           </thead>
 566           <tbody>
 567             <row>
 568               <entry><option>-package-name</option> <replaceable>P</replaceable></entry>
 569               <entry>Compile to be part of package <replaceable>P</replaceable></entry>
 570               <entry>dynamic</entry>
 571               <entry>-</entry>
 572             </row>
 573             <row>
 574               <entry><option>-package</option> <replaceable>P</replaceable></entry>
 575               <entry>Expose package <replaceable>P</replaceable></entry>
 576               <entry>static/<literal>:set</literal></entry>
 577               <entry>-</entry>
 578             </row>
 579             <row>
 580               <entry><option>-hide-all-packages</option></entry>
 581               <entry>Hide all packages by default</entry>
 582               <entry>static</entry>
 583               <entry>-</entry>
 584             </row>
 585             <row>
 586               <entry><option>-hide-package</option> <replaceable>name</replaceable></entry>
 587               <entry>Hide package <replaceable>P</replaceable></entry>
 588               <entry>static/<literal>:set</literal></entry>
 589               <entry>-</entry>
 590             </row>
 591             <row>
 592               <entry><option>-ignore-package</option> <replaceable>name</replaceable></entry>
 593               <entry>Ignore package <replaceable>P</replaceable></entry>
 594               <entry>static/<literal>:set</literal></entry>
 595               <entry>-</entry>
 596             </row>
 597             <row>
 598               <entry><option>-package-conf</option> <replaceable>file</replaceable></entry>
 599               <entry>Load more packages from <replaceable>file</replaceable></entry>
 600               <entry>static</entry>
 601               <entry>-</entry>
 602             </row>
 603             <row>
 604               <entry><option>-no-user-package-conf</option></entry>
 605               <entry>Don't load the user's package config file.</entry>
 606               <entry>static</entry>
 607               <entry>-</entry>
 608             </row>
 609             <row>
 610               <entry><option>-no-auto-link-packages</option></entry>
 611               <entry>Don't automatically link in the haskell98 package.</entry>
 612               <entry>dynamic</entry>
 613               <entry>-</entry>
 614             </row>
 615           </tbody>
 616         </tgroup>
 617       </informaltable>
 618     </sect2>
 619
 620     <sect2>
 621       <title>Language options</title>
 622
 623       <para>Language options can be enabled either by a command-line option
 624       <option>-Xblah</option>, or by a <literal>{-# LANGUAGE blah #-}</literal>
 625       pragma in the file itself.  See <xref linkend="options-language"/></para>
 626
 627       <informaltable>
 628         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 629           <thead>
 630             <row>
 631               <entry>Flag</entry>
 632               <entry>Description</entry>
 633               <entry>Static/Dynamic</entry>
 634               <entry>Reverse</entry>
 635             </row>
 636           </thead>
 637           <tbody>
 638             <row>
 639               <entry><option>-fglasgow-exts</option></entry>
 640               <entry>Enable most language extensions</entry>
 641               <entry>dynamic</entry>
 642               <entry><option>-fno-glasgow-exts</option></entry>
 643             </row>
 644             <row>
 645               <entry><option>-XOverlappingInstances</option></entry>
 646               <entry>Enable <link linkend="instance-overlap">overlapping instances</link></entry>
 647               <entry>dynamic</entry>
 648               <entry><option>-XNoOverlappingInstances</option></entry>
 649             </row>
 650             <row>
 651               <entry><option>-XIncoherentInstances</option></entry>
 652               <entry>Enable <link linkend="instance-overlap">incoherent instances</link>.
 653               Implies <option>-XOverlappingInstances</option> </entry>
 654               <entry>dynamic</entry>
 655               <entry><option>-XNoIncoherentInstances</option></entry>
 656             </row>
 657             <row>
 658               <entry><option>-XUndecidableInstances</option></entry>
 659               <entry>Enable <link linkend="undecidable-instances">undecidable instances</link></entry>
 660               <entry>dynamic</entry>
 661               <entry><option>-XNoUndecidableInstances</option></entry>
 662             </row>
 663             <row>
 664               <entry><option>-fcontext-stack=N</option><replaceable>n</replaceable></entry>
 665               <entry>set the <link linkend="undecidable-instances">limit for context reduction</link>. Default is 20.</entry>
 666               <entry>dynamic</entry>
 667               <entry></entry>
 668             </row>
 669             <row>
 670               <entry><option>-XArrows</option></entry>
 671               <entry>Enable <link linkend="arrow-notation">arrow
 672               notation</link> extension</entry>
 673               <entry>dynamic</entry>
 674               <entry><option>-XNoArrows</option></entry>
 675             </row>
 676             <row>
 677               <entry><option>-XDisambiguateRecordFields</option></entry>
 678               <entry>Enable <link linkend="disambiguate-fields">record
 679               field disambiguation</link></entry>
 680               <entry>dynamic</entry>
 681               <entry><option>-XNoDisambiguateRecordFields</option></entry>
 682             </row>
 683             <row>
 684               <entry><option>-XForeignFunctionInterface</option></entry>
 685               <entry>Enable <link linkend="ffi">foreign function interface</link> (implied by
 686               <option>-fglasgow-exts</option>)</entry>
 687               <entry>dynamic</entry>
 688               <entry><option>-XNoForeignFunctionInterface</option></entry>
 689             </row>
 690             <row>
 691               <entry><option>-XGenerics</option></entry>
 692               <entry>Enable <link linkend="generic-classes">generic classes</link></entry>
 693               <entry>dynamic</entry>
 694               <entry><option>-XNoGenerics</option></entry>
 695             </row>
 696             <row>
 697               <entry><option>-XImplicitParams</option></entry>
 698               <entry>Enable <link linkend="implicit-parameters">Implicit Parameters</link>.
 699               Implied by <option>-fglasgow-exts</option>.</entry>
 700               <entry>dynamic</entry>
 701               <entry><option>-XNoImplicitParams</option></entry>
 702             </row>
 703             <row>
 704               <entry><option>-firrefutable-tuples</option></entry>
 705               <entry>Make tuple pattern matching irrefutable</entry>
 706               <entry>dynamic</entry>
 707               <entry><option>-fno-irrefutable-tuples</option></entry>
 708             </row>
 709             <row>
 710               <entry><option>-XNoImplicitPrelude</option></entry>
 711               <entry>Don't implicitly <literal>import Prelude</literal></entry>
 712               <entry>dynamic</entry>
 713               <entry><option>-XImplicitPrelude</option></entry>
 714             </row>
 715             <row>
 716               <entry><option>-XRebindableSyntax</option></entry>
 717               <entry>Employ <link linkend="rebindable-syntax">rebindable syntax</link></entry>
 718               <entry>dynamic</entry>
 719               <entry><option>-XNoRebindableSyntax</option></entry>
 720             </row>
 721             <row>
 722               <entry><option>-XNoMonomorphismRestriction</option></entry>
 723               <entry>Disable the <link linkend="monomorphism">monomorphism restriction</link></entry>
 724               <entry>dynamic</entry>
 725               <entry><option>-XMonomorphismRrestriction</option></entry>
 726             </row>
 727             <row>
 728               <entry><option>-XNoNPlusKPatterns</option></entry>
 729               <entry>Disable support for <literal>n+k</literal> patterns</entry>
 730               <entry>dynamic</entry>
 731               <entry><option>-XNPlusKPatterns</option></entry>
 732             </row>
 733             <row>
 734               <entry><option>-XNoMonoPatBinds</option></entry>
 735               <entry>Make <link linkend="monomorphism">pattern bindings polymorphic</link></entry>
 736               <entry>dynamic</entry>
 737               <entry><option>-XMonoPatBinds</option></entry>
 738             </row>
 739             <row>
 740               <entry><option>-XRelaxedPolyRec</option></entry>
 741               <entry>Relaxed checking for <link linkend="typing-binds">mutually-recursive polymorphic functions</link></entry>
 742               <entry>dynamic</entry>
 743               <entry><option>-XNoRelaxedPolyRec</option></entry>
 744             </row>
 745             <row>
 746               <entry><option>-XExtendedDefaultRules</option></entry>
 747               <entry>Use GHCi's <link linkend="extended-default-rules">extended default rules</link> in a normal module</entry>
 748               <entry>dynamic</entry>
 749               <entry><option>-XNoExtendedDefaultRules</option></entry>
 750             </row>
 751             <row>
 752               <entry><option>-XOverloadedStrings</option></entry>
 753               <entry>Enable <link linkend="overloaded-strings">overloaded string literals</link>.
 754               </entry>
 755               <entry>dynamic</entry>
 756               <entry><option>-XNoOverloadedStrings</option></entry>
 757             </row>
 758             <row>
 759               <entry><option>-XGADTs</option></entry>
 760               <entry>Enable <link linkend="gadt">generalised algebraic data types</link>.
 761               </entry>
 762               <entry>dynamic</entry>
 763               <entry><option>-XNoGADTs</option></entry>
 764             </row>
 765             <row>
 766               <entry><option>-XTypeFamilies</option></entry>
 767               <entry>Enable <link linkend="type-families">type families</link>.</entry>
 768               <entry>dynamic</entry>
 769               <entry><option>-XNoTypeFamilies</option></entry>
 770             </row>
 771             <row>
 772               <entry><option>-XScopedTypeVariables</option></entry>
 773               <entry>Enable <link linkend="scoped-type-variables">lexically-scoped type variables</link>.
 774               Implied by <option>-fglasgow-exts</option>.</entry>
 775               <entry>dynamic</entry>
 776               <entry><option>-XNoScopedTypeVariables</option></entry>
 777             </row>
 778             <row>
 779               <entry><option>-XMonoLocalBinds</option></entry>
 780               <entry>Enable <link linkend="mono-local-binds">do not generalise local bindings</link>.
 781               </entry>
 782               <entry>dynamic</entry>
 783               <entry><option>-XNoMonoLocalBinds</option></entry>
 784             </row>
 785             <row>
 786               <entry><option>-XTemplateHaskell</option></entry>
 787               <entry>Enable <link linkend="template-haskell">Template Haskell</link>.
 788                 No longer implied by <option>-fglasgow-exts</option>.</entry>
 789               <entry>dynamic</entry>
 790               <entry><option>-XNoTemplateHaskell</option></entry>
 791             </row>
 792             <row>
 793               <entry><option>-XQuasiQuotes</option></entry>
 794               <entry>Enable <link linkend="th-quasiquotation">quasiquotation</link>.</entry>
 795               <entry>dynamic</entry>
 796               <entry><option>-XNoQuasiQuotes</option></entry>
 797             </row>
 798             <row>
 799               <entry><option>-XBangPatterns</option></entry>
 800               <entry>Enable <link linkend="bang-patterns">bang patterns</link>.</entry>
 801               <entry>dynamic</entry>
 802               <entry><option>-XNoBangPatterns</option></entry>
 803             </row>
 804             <row>
 805               <entry><option>-XCPP</option></entry>
 806               <entry>Enable the <link linkend="c-pre-processor">C preprocessor</link>.</entry>
 807               <entry>dynamic</entry>
 808               <entry><option>-XNoCPP</option></entry>
 809             </row>
 810             <row>
 811               <entry><option>-XPatternGuards</option></entry>
 812               <entry>Enable <link linkend="pattern-guards">pattern guards</link>.</entry>
 813               <entry>dynamic</entry>
 814               <entry><option>-XNoPatternGuards</option></entry>
 815             </row>
 816             <row>
 817               <entry><option>-XViewPatterns</option></entry>
 818               <entry>Enable <link linkend="view-patterns">view patterns</link>.</entry>
 819               <entry>dynamic</entry>
 820               <entry><option>-XNoViewPatterns</option></entry>
 821             </row>
 822             <row>
 823               <entry><option>-XUnicodeSyntax</option></entry>
 824               <entry>Enable <link linkend="unicode-syntax">unicode syntax</link>.</entry>
 825               <entry>dynamic</entry>
 826               <entry><option>-XNoUnicodeSyntax</option></entry>
 827             </row>
 828             <row>
 829               <entry><option>-XMagicHash</option></entry>
 830               <entry>Allow "#" as a <link linkend="magic-hash">postfix modifier on identifiers</link>.</entry>
 831               <entry>dynamic</entry>
 832               <entry><option>-XNoMagicHash</option></entry>
 833             </row>
 834             <row>
 835               <entry><option>-XNewQualifiedOperators</option></entry>
 836               <entry>Enable <link linkend="new-qualified-operators">new
 837               qualified operator syntax</link></entry>
 838               <entry>dynamic</entry>
 839               <entry><option>-XNoNewQualifiedOperators</option></entry>
 840             </row>
 841             <row>
 842               <entry><option>-XExplicitForALl</option></entry>
 843               <entry>Enable <link linkend="explicit-foralls">explicit universal quantification</link>.
 844               Implied by <option>-XScopedTypeVariables</option>,
 845             <option>-XLiberalTypeSynonyms</option>,
 846             <option>-XRank2Types</option>,
 847             <option>-XRankNTypes</option>,
 848             <option>-XPolymorphicComponents</option>,
 849             <option>-XExistentialQuantification</option>
 850               </entry>
 851               <entry>dynamic</entry>
 852               <entry><option>-XNoExplicitForAll</option></entry>
 853             </row>
 854             <row>
 855               <entry><option>-XPolymorphicComponents</option></entry>
 856               <entry>Enable <link linkend="universal-quantification">polymorphic components for data constructors</link>.</entry>
 857               <entry>dynamic</entry>
 858               <entry><option>-XNoPolymorphicComponents</option></entry>
 859             </row>
 860             <row>
 861               <entry><option>-XRank2Types</option></entry>
 862               <entry>Enable <link linkend="universal-quantification">rank-2 types</link>.</entry>
 863               <entry>dynamic</entry>
 864               <entry><option>-XNoRank2Types</option></entry>
 865             </row>
 866             <row>
 867               <entry><option>-XRankNTypes</option></entry>
 868               <entry>Enable <link linkend="universal-quantification">rank-N types</link>.</entry>
 869               <entry>dynamic</entry>
 870               <entry><option>-XNoRankNTypes</option></entry>
 871             </row>
 872             <row>
 873               <entry><option>-XImpredicativeTypes</option></entry>
 874               <entry>Enable <link linkend="impredicative-polymorphism">impredicative types</link>.</entry>
 875               <entry>dynamic</entry>
 876               <entry><option>-XNoImpredicativeTypes</option></entry>
 877             </row>
 878             <row>
 879               <entry><option>-XExistentialQuantification</option></entry>
 880               <entry>Enable <link linkend="existential-quantification">existential quantification</link>.</entry>
 881               <entry>dynamic</entry>
 882               <entry><option>-XNoExistentialQuantification</option></entry>
 883             </row>
 884             <row>
 885               <entry><option>-XKindSignatures</option></entry>
 886               <entry>Enable <link linkend="kinding">kind signatures</link>.</entry>
 887               <entry>dynamic</entry>
 888               <entry><option>-XNoKindSignatures</option></entry>
 889             </row>
 890             <row>
 891               <entry><option>-XEmptyDataDecls</option></entry>
 892               <entry>Enable empty data declarations.</entry>
 893               <entry>dynamic</entry>
 894               <entry><option>-XNoEmptyDataDecls</option></entry>
 895             </row>
 896             <row>
 897               <entry><option>-XParallelListComp</option></entry>
 898               <entry>Enable <link linkend="parallel-list-comprehensions">parallel list comprehensions</link>.</entry>
 899               <entry>dynamic</entry>
 900               <entry><option>-XNoParallelListComp</option></entry>
 901             </row>
 902             <row>
 903               <entry><option>-XTransformListComp</option></entry>
 904               <entry>Enable <link linkend="generalised-list-comprehensions">generalised list comprehensions</link>.</entry>
 905               <entry>dynamic</entry>
 906               <entry><option>-XNoTransformListComp</option></entry>
 907             </row>
 908             <row>
 909               <entry><option>-XUnliftedFFITypes</option></entry>
 910               <entry>Enable unlifted FFI types.</entry>
 911               <entry>dynamic</entry>
 912               <entry><option>-XNoUnliftedFFITypes</option></entry>
 913             </row>
 914             <row>
 915               <entry><option>-XLiberalTypeSynonyms</option></entry>
 916               <entry>Enable <link linkend="type-synonyms">liberalised type synonyms</link>.</entry>
 917               <entry>dynamic</entry>
 918               <entry><option>-XNoLiberalTypeSynonyms</option></entry>
 919             </row>
 920             <row>
 921               <entry><option>-XTypeOperators</option></entry>
 922               <entry>Enable type operators.</entry>
 923               <entry>dynamic</entry>
 924               <entry><option>-XNoTypeOperators</option></entry>
 925             </row>
 926             <row>
 927               <entry><option>-XDoRec</option></entry>
 928               <entry>Enable <link linkend="recursive-do-notation">recursive do notation</link>.</entry>
 929               <entry>dynamic</entry>
 930               <entry><option>-XNoDoRec</option></entry>
 931             </row>
 932             <row>
 933               <entry><option>-XRecursiveDo</option></entry>
 934               <entry>Enable <link linkend="mdo-notation">recursive do (mdo) notation</link>. This is deprecated; please use <link linkend="recursive-do-notation">recursive do notation</link> instead.</entry>
 935               <entry>dynamic</entry>
 936               <entry><option>-XNoRecursiveDo</option></entry>
 937             </row>
 938             <row>
 939               <entry><option>-XPArr</option></entry>
 940               <entry>Enable parallel arrays.</entry>
 941               <entry>dynamic</entry>
 942               <entry><option>-XNoPArr</option></entry>
 943             </row>
 944             <row>
 945               <entry><option>-XRecordWildCards</option></entry>
 946               <entry>Enable <link linkend="record-wildcards">record wildcards</link>.</entry>
 947               <entry>dynamic</entry>
 948               <entry><option>-XNoRecordWildCards</option></entry>
 949             </row>
 950             <row>
 951               <entry><option>-XNamedFieldPuns</option></entry>
 952               <entry>Enable <link linkend="record-puns">record puns</link>.</entry>
 953               <entry>dynamic</entry>
 954               <entry><option>-XNoNamedFieldPuns</option></entry>
 955             </row>
 956             <row>
 957               <entry><option>-XDisambiguateRecordFields</option></entry>
 958               <entry>Enable  <link linkend="disambiguate-fields">record field disambiguation</link>. </entry>
 959               <entry>dynamic</entry>
 960               <entry><option>-XNoDisambiguateRecordFields</option></entry>
 961             </row>
 962             <row>
 963               <entry><option>-XUnboxedTuples</option></entry>
 964               <entry>Enable <link linkend="unboxed-tuples">unboxed tuples</link>.</entry>
 965               <entry>dynamic</entry>
 966               <entry><option>-XNoUnboxedTuples</option></entry>
 967             </row>
 968             <row>
 969               <entry><option>-XStandaloneDeriving</option></entry>
 970               <entry>Enable <link linkend="stand-alone-deriving">standalone deriving</link>.</entry>
 971               <entry>dynamic</entry>
 972               <entry><option>-XNoStandaloneDeriving</option></entry>
 973             </row>
 974             <row>
 975               <entry><option>-XDeriveDataTypeable</option></entry>
 976               <entry>Enable <link linkend="deriving-typeable">deriving for the Data and Typeable classes</link>.</entry>
 977               <entry>dynamic</entry>
 978               <entry><option>-XNoDeriveDataTypeable</option></entry>
 979             </row>
 980             <row>
 981               <entry><option>-XGeneralizedNewtypeDeriving</option></entry>
 982               <entry>Enable <link linkend="newtype-deriving">newtype deriving</link>.</entry>
 983               <entry>dynamic</entry>
 984               <entry><option>-XNoGeneralizedNewtypeDeriving</option></entry>
 985             </row>
 986             <row>
 987               <entry><option>-XTypeSynonymInstances</option></entry>
 988               <entry>Enable <link linkend="flexible-instance-head">type synonyms in instance heads</link>.</entry>
 989               <entry>dynamic</entry>
 990               <entry><option>-XNoTypeSynonymInstances</option></entry>
 991             </row>
 992             <row>
 993               <entry><option>-XFlexibleContexts</option></entry>
 994               <entry>Enable <link linkend="flexible-contexts">flexible contexts</link>.</entry>
 995               <entry>dynamic</entry>
 996               <entry><option>-XNoFlexibleContexts</option></entry>
 997             </row>
 998             <row>
 999               <entry><option>-XFlexibleInstances</option></entry>
1000               <entry>Enable <link linkend="instance-rules">flexible instances</link>.</entry>
1001               <entry>dynamic</entry>
1002               <entry><option>-XNoFlexibleInstances</option></entry>
1003             </row>
1004             <row>
1005               <entry><option>-XConstrainedClassMethods</option></entry>
1006               <entry>Enable <link linkend="class-method-types">constrained class methods</link>.</entry>
1007               <entry>dynamic</entry>
1008               <entry><option>-XNoConstrainedClassMethods</option></entry>
1009             </row>
1010             <row>
1011               <entry><option>-XMultiParamTypeClasses</option></entry>
1012               <entry>Enable <link linkend="multi-param-type-classes">multi parameter type classes</link>.</entry>
1013               <entry>dynamic</entry>
1014               <entry><option>-XNoMultiParamTypeClasses</option></entry>
1015             </row>
1016             <row>
1017               <entry><option>-XFunctionalDependencies</option></entry>
1018               <entry>Enable <link linkend="functional-dependencies">functional dependencies</link>.</entry>
1019               <entry>dynamic</entry>
1020               <entry><option>-XNoFunctionalDependencies</option></entry>
1021             </row>
1022             <row>
1023               <entry><option>-XPackageImports</option></entry>
1024               <entry>Enable <link linkend="package-imports">package-qualified imports</link>.</entry>
1025               <entry>dynamic</entry>
1026               <entry><option>-XNoPackageImports</option></entry>
1027             </row>
1028           </tbody>
1029         </tgroup>
1030       </informaltable>
1031     </sect2>
1032
1033     <sect2>
1034       <title>Warnings</title>
1035
1036       <para><xref linkend="options-sanity"/></para>
1037
1038     <informaltable>
1039       <tgroup cols="4" align="left" colsep="1" rowsep="1">
1040         <thead>
1041           <row>
1042             <entry>Flag</entry>
1043             <entry>Description</entry>
1044             <entry>Static/Dynamic</entry>
1045             <entry>Reverse</entry>
1046           </row>
1047         </thead>
1048         <tbody>
1049           <row>
1050             <entry><option>-W</option></entry>
1051             <entry>enable normal warnings</entry>
1052             <entry>dynamic</entry>
1053             <entry><option>-w</option></entry>
1054           </row>
1055           <row>
1056             <entry><option>-w</option></entry>
1057             <entry>disable all warnings</entry>
1058             <entry>dynamic</entry>
1059             <entry>-</entry>
1060           </row>
1061           <row>
1062             <entry><option>-Wall</option></entry>
1063             <entry>enable almost all warnings (details in <xref linkend="options-sanity"/>)</entry>
1064             <entry>dynamic</entry>
1065             <entry><option>-w</option></entry>
1066           </row>
1067           <row>
1068             <entry><option>-Werror</option></entry>
1069             <entry>make warnings fatal</entry>
1070             <entry>dynamic</entry>
1071             <entry>-Wwarn</entry>
1072           </row>
1073           <row>
1074             <entry><option>-Wwarn</option></entry>
1075             <entry>make warnings non-fatal</entry>
1076             <entry>dynamic</entry>
1077             <entry>-Werror</entry>
1078           </row>
1079
1080           <row>
1081             <entry><option>-fwarn-unrecognised-pragmas</option></entry>
1082             <entry>warn about uses of pragmas that GHC doesn't recognise</entry>
1083             <entry>dynamic</entry>
1084             <entry><option>-fno-warn-unrecognised-pragmas</option></entry>
1085           </row>
1086
1087           <row>
1088             <entry><option>-fwarn-warnings-deprecations</option></entry>
1089             <entry>warn about uses of functions &amp; types that have warnings or deprecated pragmas</entry>
1090             <entry>dynamic</entry>
1091             <entry><option>-fno-warn-warnings-deprecations</option></entry>
1092           </row>
1093
1094           <row>
1095             <entry><option>-fwarn-deprecated-flags</option></entry>
1096             <entry>warn about uses of commandline flags that are deprecated</entry>
1097             <entry>dynamic</entry>
1098             <entry><option>-fno-warn-deprecated-flags</option></entry>
1099           </row>
1100
1101           <row>
1102             <entry><option>-fwarn-duplicate-exports</option></entry>
1103             <entry>warn when an entity is exported multiple times</entry>
1104             <entry>dynamic</entry>
1105             <entry><option>-fno-warn-duplicate-exports</option></entry>
1106           </row>
1107
1108           <row>
1109             <entry><option>-fwarn-hi-shadowing</option></entry>
1110             <entry>warn when a <literal>.hi</literal> file in the
1111             current directory shadows a library</entry>
1112             <entry>dynamic</entry>
1113             <entry><option>-fno-warn-hi-shadowing</option></entry>
1114           </row>
1115
1116           <row>
1117             <entry><option>-fwarn-identities</option></entry>
1118             <entry>warn about uses of Prelude numeric conversions that are probably
1119                    the identity (and hence could be omitted)</entry>
1120             <entry>dynamic</entry>
1121             <entry><option>-fno-warn-identities</option></entry>
1122           </row>
1123
1124           <row>
1125             <entry><option>-fwarn-implicit-prelude</option></entry>
1126             <entry>warn when the Prelude is implicitly imported</entry>
1127             <entry>dynamic</entry>
1128             <entry><option>-fno-warn-implicit-prelude</option></entry>
1129           </row>
1130
1131           <row>
1132             <entry><option>-fwarn-incomplete-patterns</option></entry>
1133             <entry>warn when a pattern match could fail</entry>
1134             <entry>dynamic</entry>
1135             <entry><option>-fno-warn-incomplete-patterns</option></entry>
1136           </row>
1137
1138           <row>
1139             <entry><option>-fwarn-incomplete-record-updates</option></entry>
1140             <entry>warn when a record update could fail</entry>
1141             <entry>dynamic</entry>
1142             <entry><option>-fno-warn-incomplete-record-updates</option></entry>
1143           </row>
1144
1145           <row>
1146             <entry><option>-fwarn-lazy-unlifted-bindings</option></entry>
1147             <entry>warn when a pattern binding looks lazy but must be strict</entry>
1148             <entry>dynamic</entry>
1149             <entry><option>-fno-warn-lazy-unlifted-bindings</option></entry>
1150           </row>
1151
1152           <row>
1153             <entry><option>-fwarn-missing-fields</option></entry>
1154             <entry>warn when fields of a record are uninitialised</entry>
1155             <entry>dynamic</entry>
1156             <entry><option>-fno-warn-missing-fields</option></entry>
1157           </row>
1158
1159           <row>
1160             <entry><option>-fwarn-missing-import-lists</option></entry>
1161             <entry>warn when an import declaration does not explicitly
1162                    list all the names brought into scope</entry>
1163             <entry>dynamic</entry>
1164             <entry><option>-fnowarn-missing-import-lists</option></entry>
1165           </row>
1166
1167           <row>
1168             <entry><option>-fwarn-missing-methods</option></entry>
1169             <entry>warn when class methods are undefined</entry>
1170             <entry>dynamic</entry>
1171             <entry><option>-fno-warn-missing-methods</option></entry>
1172           </row>
1173
1174           <row>
1175             <entry><option>-fwarn-missing-signatures</option></entry>
1176             <entry>warn about top-level functions without signatures</entry>
1177             <entry>dynamic</entry>
1178             <entry><option>-fno-warn-missing-signatures</option></entry>
1179           </row>
1180
1181           <row>
1182             <entry><option>-fwarn-name-shadowing</option></entry>
1183             <entry>warn when names are shadowed</entry>
1184             <entry>dynamic</entry>
1185             <entry><option>-fno-warn-name-shadowing</option></entry>
1186           </row>
1187
1188           <row>
1189             <entry><option>-fwarn-orphans</option></entry>
1190             <entry>warn when the module contains <link linkend="orphan-modules">orphan instance declarations
1191             or rewrite rules</link></entry>
1192             <entry>dynamic</entry>
1193             <entry><option>-fno-warn-orphans</option></entry>
1194           </row>
1195
1196           <row>
1197             <entry><option>-fwarn-overlapping-patterns</option></entry>
1198             <entry>warn about overlapping patterns</entry>
1199             <entry>dynamic</entry>
1200             <entry><option>-fno-warn-overlapping-patterns</option></entry>
1201           </row>
1202
1203           <row>
1204             <entry><option>-fwarn-tabs</option></entry>
1205             <entry>warn if there are tabs in the source file</entry>
1206             <entry>dynamic</entry>
1207             <entry><option>-fno-warn-tabs</option></entry>
1208           </row>
1209
1210           <row>
1211             <entry><option>-fwarn-type-defaults</option></entry>
1212             <entry>warn when defaulting happens</entry>
1213             <entry>dynamic</entry>
1214             <entry><option>-fno-warn-type-defaults</option></entry>
1215           </row>
1216
1217           <row>
1218             <entry><option>-fwarn-monomorphism-restriction</option></entry>
1219             <entry>warn when the Monomorphism Restriction is applied</entry>
1220             <entry>dynamic</entry>
1221             <entry><option>-fno-warn-monomorphism-restriction</option></entry>
1222           </row>
1223
1224           <row>
1225             <entry><option>-fwarn-unused-binds</option></entry>
1226             <entry>warn about bindings that are unused</entry>
1227             <entry>dynamic</entry>
1228             <entry><option>-fno-warn-unused-binds</option></entry>
1229           </row>
1230
1231           <row>
1232             <entry><option>-fwarn-unused-imports</option></entry>
1233             <entry>warn about unnecessary imports</entry>
1234             <entry>dynamic</entry>
1235             <entry><option>-fno-warn-unused-imports</option></entry>
1236           </row>
1237
1238           <row>
1239             <entry><option>-fwarn-unused-matches</option></entry>
1240             <entry>warn about variables in patterns that aren't used</entry>
1241             <entry>dynamic</entry>
1242             <entry><option>-fno-warn-unused-matches</option></entry>
1243           </row>
1244
1245           <row>
1246             <entry><option>-fwarn-unused-do-bind</option></entry>
1247             <entry>warn about do bindings that appear to throw away values of types other than <literal>()</literal></entry>
1248             <entry>dynamic</entry>
1249             <entry><option>-fno-warn-unused-do-bind</option></entry>
1250           </row>
1251
1252           <row>
1253             <entry><option>-fwarn-wrong-do-bind</option></entry>
1254             <entry>warn about do bindings that appear to throw away monadic values that you should have bound instead</entry>
1255             <entry>dynamic</entry>
1256             <entry><option>-fno-warn-wrong-do-bind</option></entry>
1257           </row>
1258
1259           </tbody>
1260         </tgroup>
1261       </informaltable>
1262
1263     </sect2>
1264     <sect2>
1265       <title>Optimisation levels</title>
1266
1267       <para><xref linkend="options-optimise"/></para>
1268
1269       <informaltable>
1270         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1271           <thead>
1272             <row>
1273               <entry>Flag</entry>
1274               <entry>Description</entry>
1275               <entry>Static/Dynamic</entry>
1276               <entry>Reverse</entry>
1277             </row>
1278           </thead>
1279           <tbody>
1280             <row>
1281               <entry><option>-O</option></entry>
1282               <entry>Enable default optimisation (level 1)</entry>
1283               <entry>dynamic</entry>
1284               <entry><option>-O0</option></entry>
1285             </row>
1286             <row>
1287               <entry><option>-O</option><replaceable>n</replaceable></entry>
1288               <entry>Set optimisation level <replaceable>n</replaceable></entry>
1289               <entry>dynamic</entry>
1290               <entry><option>-O0</option></entry>
1291             </row>
1292           </tbody>
1293         </tgroup>
1294       </informaltable>
1295
1296     </sect2>
1297     <sect2>
1298       <title>Individual optimisations</title>
1299
1300       <para><xref linkend="options-f"/></para>
1301
1302       <informaltable>
1303         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1304           <thead>
1305             <row>
1306               <entry>Flag</entry>
1307               <entry>Description</entry>
1308               <entry>Static/Dynamic</entry>
1309               <entry>Reverse</entry>
1310             </row>
1311           </thead>
1312           <tbody>
1313             <row>
1314               <entry><option>-fcase-merge</option></entry>
1315               <entry>Enable case-merging. Implied by <option>-O</option>.</entry>
1316               <entry>dynamic</entry>
1317               <entry><option>-fno-case-merge</option></entry>
1318             </row>
1319
1320             <row>
1321               <entry><option>-fdicts-strict</option></entry>
1322               <entry>Make dictionaries strict</entry>
1323               <entry>static</entry>
1324               <entry><option>-fno-dicts-strict</option></entry>
1325             </row>
1326
1327             <row>
1328               <entry><option>-fmethod-sharing</option></entry>
1329               <entry>Share specialisations of overloaded functions (default)</entry>
1330               <entry>dynamic</entry>
1331               <entry><option>-fno-method-sharing</option></entry>
1332             </row>
1333
1334             <row>
1335               <entry><option>-fdo-eta-reduction</option></entry>
1336               <entry>Enable eta-reduction. Implied by <option>-O</option>.</entry>
1337               <entry>dynamic</entry>
1338               <entry><option>-fno-do-eta-reduction</option></entry>
1339             </row>
1340
1341             <row>
1342               <entry><option>-fdo-lambda-eta-expansion</option></entry>
1343               <entry>Enable lambda eta-reduction</entry>
1344               <entry>dynamic</entry>
1345               <entry><option>-fno-do-lambda-eta-expansion</option></entry>
1346             </row>
1347
1348             <row>
1349               <entry><option>-fexcess-precision</option></entry>
1350               <entry>Enable excess intermediate precision</entry>
1351               <entry>dynamic</entry>
1352               <entry><option>-fno-excess-precision</option></entry>
1353             </row>
1354
1355             <row>
1356               <entry><option>-fignore-asserts</option></entry>
1357               <entry>Ignore assertions in the source</entry>
1358               <entry>dynamic</entry>
1359               <entry><option>-fno-ignore-asserts</option></entry>
1360             </row>
1361
1362             <row>
1363               <entry><option>-fignore-interface-pragmas</option></entry>
1364               <entry>Ignore pragmas in interface files</entry>
1365               <entry>dynamic</entry>
1366               <entry><option>-fno-ignore-interface-pragmas</option></entry>
1367             </row>
1368
1369             <row>
1370               <entry><option>-fomit-interface-pragmas</option></entry>
1371               <entry>Don't generate interface pragmas</entry>
1372               <entry>dynamic</entry>
1373               <entry><option>-fno-omit-interface-pragmas</option></entry>
1374             </row>
1375
1376             <row>
1377               <entry><option>-fmax-worker-args</option></entry>
1378               <entry>If a worker has that many arguments, none will be
1379                 unpacked anymore (default: 10)</entry>
1380               <entry>static</entry>
1381               <entry>-</entry>
1382             </row>
1383
1384             <row>
1385               <entry><option>-fsimplifier-phases</option></entry>
1386               <entry>Set the number of phases for the simplifier (default 2).
1387               Ignored with <option>-O0</option>.</entry>
1388               <entry>dynamic</entry>
1389               <entry>-</entry>
1390             </row>
1391
1392             <row>
1393               <entry><option>-fmax-simplifier-iterations</option></entry>
1394               <entry>Set the max iterations for the simplifier</entry>
1395               <entry>dynamic</entry>
1396               <entry>-</entry>
1397             </row>
1398
1399             <row>
1400               <entry><option>-fno-state-hack</option></entry>
1401               <entry>Turn off the "state hack" whereby any lambda with a real-world state token
1402               as argument is considered to be single-entry.  Hence OK to inline things inside it.</entry>
1403               <entry>static</entry>
1404               <entry>-</entry>
1405             </row>
1406
1407             <row>
1408               <entry><option>-fcse</option></entry>
1409               <entry>Turn on common sub-expression elimination. Implied by <option>-O</option>.</entry>
1410               <entry>dynamic</entry>
1411               <entry>-fno-cse</entry>
1412             </row>
1413
1414             <row>
1415               <entry><option>-fspecialise</option></entry>
1416               <entry>Turn on specialisation of overloaded functions. Implied by <option>-O</option>.</entry>
1417               <entry>dynamic</entry>
1418               <entry>-fno-specialise</entry>
1419             </row>
1420
1421             <row>
1422               <entry><option>-ffull-laziness</option></entry>
1423               <entry>Turn on full laziness (floating bindings outwards). Implied by <option>-O</option>.</entry>
1424               <entry>dynamic</entry>
1425               <entry>-fno-full-laziness</entry>
1426             </row>
1427
1428             <row>
1429               <entry><option>-ffloat-in</option></entry>
1430               <entry>Turn on the float-in transformation. Implied by <option>-O</option>.</entry>
1431               <entry>dynamic</entry>
1432               <entry>-fno-float-in</entry>
1433             </row>
1434
1435             <row>
1436               <entry><option>-fenable-rewrite-rules</option></entry>
1437               <entry>Switch on all rewrite rules (including rules
1438               generated by automatic specialisation of overloaded functions).
1439               Implied by <option>-O</option>. </entry>
1440               <entry>dynamic</entry>
1441               <entry><option>-fno-enable-rewrite-rules</option></entry>
1442             </row>
1443
1444             <row>
1445               <entry><option>-fstrictness</option></entry>
1446               <entry>Turn on strictness analysis. Implied by <option>-O</option>.</entry>
1447               <entry>dynamic</entry>
1448               <entry>-fno-strictness</entry>
1449             </row>
1450
1451             <row>
1452               <entry><option>-fstrictness=before</option>=<replaceable>n</replaceable></entry>
1453               <entry>Run an additional strictness analysis before simplifier
1454 phase <replaceable>n</replaceable></entry>
1455               <entry>dynamic</entry>
1456               <entry>-</entry>
1457             </row>
1458
1459             <row>
1460               <entry><option>-fspec-constr</option></entry>
1461               <entry>Turn on the SpecConstr transformation. Implied by <option>-O2</option>.</entry>
1462               <entry>dynamic</entry>
1463               <entry>-fno-spec-constr</entry>
1464             </row>
1465
1466             <row>
1467               <entry><option>-fspec-constr-threshold</option>=<replaceable>n</replaceable></entry>
1468               <entry>Set the size threshold for the SpecConstr transformation to <replaceable>n</replaceable> (default: 200)</entry>
1469               <entry>static</entry>
1470               <entry><option>-fno-spec-constr-threshold</option></entry>
1471             </row>
1472
1473             <row>
1474               <entry><option>-fspec-constr-count</option>=<replaceable>n</replaceable></entry>
1475               <entry>Set to <replaceable>n</replaceable> (default: 3) the maximum number of
1476                 specialisations that will be created for any one function
1477                 by the SpecConstr transformation</entry>
1478               <entry>static</entry>
1479               <entry><option>-fno-spec-constr-count</option></entry>
1480             </row>
1481
1482             <row>
1483               <entry><option>-fliberate-case</option></entry>
1484               <entry>Turn on the liberate-case transformation. Implied by <option>-O2</option>.</entry>
1485               <entry>dynamic</entry>
1486               <entry>-fno-liberate-case</entry>
1487             </row>
1488
1489             <row>
1490               <entry><option>-fstatic-argument-transformation</option></entry>
1491               <entry>Turn on the static argument transformation. Implied by <option>-O2</option>.</entry>
1492               <entry>dynamic</entry>
1493               <entry>-fno-static-argument-transformation</entry>
1494             </row>
1495
1496             <row>
1497               <entry><option>-fliberate-case-threshold</option>=<replaceable>n</replaceable></entry>
1498               <entry>Set the size threshold for the liberate-case transformation to <replaceable>n</replaceable> (default: 200)</entry>
1499               <entry>static</entry>
1500               <entry><option>-fno-liberate-case-threshold</option></entry>
1501             </row>
1502
1503             <row>
1504               <entry><option>-funbox-strict-fields</option></entry>
1505               <entry>Flatten strict constructor fields</entry>
1506               <entry>dynamic</entry>
1507               <entry><option>-fno-unbox-strict-fields</option></entry>
1508             </row>
1509
1510             <row>
1511               <entry><option>-funfolding-creation-threshold</option></entry>
1512               <entry>Tweak unfolding settings</entry>
1513               <entry>static</entry>
1514               <entry><option>-fno-unfolding-creation-threshold</option></entry>
1515             </row>
1516
1517             <row>
1518               <entry><option>-funfolding-fun-discount</option></entry>
1519               <entry>Tweak unfolding settings</entry>
1520               <entry>static</entry>
1521               <entry><option>-fno-unfolding-fun-discount</option></entry>
1522             </row>
1523
1524             <row>
1525               <entry><option>-funfolding-keeness-factor</option></entry>
1526               <entry>Tweak unfolding settings</entry>
1527               <entry>static</entry>
1528               <entry><option>-fno-unfolding-keeness-factor</option></entry>
1529             </row>
1530
1531             <row>
1532               <entry><option>-funfolding-use-threshold</option></entry>
1533               <entry>Tweak unfolding settings</entry>
1534               <entry>static</entry>
1535               <entry><option>-fno-unfolding-use-threshold</option></entry>
1536             </row>
1537
1538             <row>
1539               <entry><option>-fno-pre-inlining</option></entry>
1540               <entry>Turn off pre-inlining</entry>
1541               <entry>static</entry>
1542               <entry>-</entry>
1543             </row>
1544
1545             <row>
1546               <entry><option>-feager-blackholing</option></entry>
1547               <entry>Turn on <link linkend="parallel-compile-options">eager blackholing</link></entry>
1548               <entry>dynamic</entry>
1549               <entry>-</entry>
1550             </row>
1551           </tbody>
1552         </tgroup>
1553       </informaltable>
1554     </sect2>
1555
1556     <sect2>
1557       <title>Profiling options</title>
1558
1559       <para><xref linkend="profiling"/></para>
1560
1561       <informaltable>
1562         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1563           <thead>
1564             <row>
1565               <entry>Flag</entry>
1566               <entry>Description</entry>
1567               <entry>Static/Dynamic</entry>
1568               <entry>Reverse</entry>
1569             </row>
1570           </thead>
1571           <tbody>
1572             <row>
1573               <entry><option>-auto</option></entry>
1574               <entry>Auto-add <literal>_scc_</literal>s to all
1575               exported functions not marked INLINE</entry>
1576               <entry>dynamic</entry>
1577               <entry><option>-no-auto</option></entry>
1578             </row>
1579             <row>
1580               <entry><option>-auto-all</option></entry>
1581               <entry>Auto-add <literal>_scc_</literal>s to all
1582               top-level functions not marked INLINE</entry>
1583               <entry>dynamic</entry>
1584               <entry><option>-no-auto-all</option></entry>
1585             </row>
1586             <row>
1587               <entry><option>-caf-all</option></entry>
1588               <entry>Auto-add <literal>_scc_</literal>s to all CAFs</entry>
1589               <entry>dynamic</entry>
1590               <entry><option>-no-caf-all</option></entry>
1591             </row>
1592             <row>
1593               <entry><option>-prof</option></entry>
1594               <entry>Turn on profiling</entry>
1595               <entry>static</entry>
1596               <entry>-</entry>
1597             </row>
1598             <row>
1599               <entry><option>-ticky</option></entry>
1600               <entry><link linkend="ticky-ticky">Turn on ticky-ticky profiling</link></entry>
1601               <entry>static</entry>
1602               <entry>-</entry>
1603             </row>
1604           </tbody>
1605         </tgroup>
1606       </informaltable>
1607     </sect2>
1608
1609     <sect2>
1610       <title>Program coverage options</title>
1611
1612       <para><xref linkend="hpc"/></para>
1613
1614       <informaltable>
1615         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1616           <thead>
1617             <row>
1618               <entry>Flag</entry>
1619               <entry>Description</entry>
1620               <entry>Static/Dynamic</entry>
1621               <entry>Reverse</entry>
1622             </row>
1623           </thead>
1624           <tbody>
1625             <row>
1626               <entry><option>-fhpc</option></entry>
1627               <entry>Turn on Haskell program coverage instrumentation</entry>
1628               <entry>static</entry>
1629               <entry><option>-</option></entry>
1630             </row>
1631             <row>
1632               <entry><option>-hpcdir dir</option></entry>
1633               <entry>Directory to deposit .mix files during compilation (default is .hpc)</entry>
1634               <entry>dynamic</entry>
1635               <entry><option>-</option></entry>
1636             </row>
1637           </tbody>
1638         </tgroup>
1639       </informaltable>
1640     </sect2>
1641
1642     <sect2>
1643       <title>Haskell pre-processor options</title>
1644
1645       <para><xref linkend="pre-processor"/></para>
1646
1647       <informaltable>
1648         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1649           <thead>
1650             <row>
1651               <entry>Flag</entry>
1652               <entry>Description</entry>
1653               <entry>Static/Dynamic</entry>
1654               <entry>Reverse</entry>
1655             </row>
1656           </thead>
1657           <tbody>
1658             <row>
1659               <entry><option>-F</option></entry>
1660               <entry>
1661                   Enable the use of a pre-processor
1662                   (set with <option>-pgmF</option>)
1663               </entry>
1664               <entry>dynamic</entry>
1665               <entry>-</entry>
1666             </row>
1667           </tbody>
1668         </tgroup>
1669       </informaltable>
1670     </sect2>
1671
1672     <sect2>
1673       <title>C pre-processor options</title>
1674
1675       <para><xref linkend="c-pre-processor"/></para>
1676
1677       <informaltable>
1678         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1679           <thead>
1680             <row>
1681               <entry>Flag</entry>
1682               <entry>Description</entry>
1683               <entry>Static/Dynamic</entry>
1684               <entry>Reverse</entry>
1685             </row>
1686           </thead>
1687           <tbody>
1688             <row>
1689               <entry><option>-cpp</option></entry>
1690               <entry>Run the C pre-processor on Haskell source files</entry>
1691               <entry>dynamic</entry>
1692               <entry>-</entry>
1693             </row>
1694             <row>
1695               <entry><option>-D</option><replaceable>symbol</replaceable><optional>=<replaceable>value</replaceable></optional></entry>
1696               <entry>Define a symbol in the C pre-processor</entry>
1697               <entry>dynamic</entry>
1698               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1699             </row>
1700             <row>
1701               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1702               <entry>Undefine a symbol in the C pre-processor</entry>
1703               <entry>dynamic</entry>
1704               <entry>-</entry>
1705             </row>
1706             <row>
1707               <entry><option>-I</option><replaceable>dir</replaceable></entry>
1708               <entry>Add <replaceable>dir</replaceable> to the
1709               directory search list for <literal>#include</literal> files</entry>
1710               <entry>dynamic</entry>
1711               <entry>-</entry>
1712             </row>
1713           </tbody>
1714         </tgroup>
1715       </informaltable>
1716     </sect2>
1717
1718     <sect2>
1719       <title>Code generation options</title>
1720
1721       <para><xref linkend="options-codegen"/></para>
1722
1723       <informaltable>
1724         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1725           <thead>
1726             <row>
1727               <entry>Flag</entry>
1728               <entry>Description</entry>
1729               <entry>Static/Dynamic</entry>
1730               <entry>Reverse</entry>
1731             </row>
1732           </thead>
1733           <tbody>
1734             <row>
1735               <entry><option>-fasm</option></entry>
1736               <entry>Use the native code generator</entry>
1737               <entry>dynamic</entry>
1738               <entry>-fvia-C</entry>
1739             </row>
1740             <row>
1741               <entry><option>-fvia-C</option></entry>
1742               <entry>Compile via C</entry>
1743               <entry>dynamic</entry>
1744               <entry>-fasm</entry>
1745             </row>
1746             <row>
1747               <entry><option>-fllvm</option></entry>
1748               <entry>Compile via LLVM</entry>
1749               <entry>dynamic</entry>
1750               <entry>-fasm</entry>
1751             </row>
1752             <row>
1753               <entry><option>-fno-code</option></entry>
1754               <entry>Omit code generation</entry>
1755               <entry>dynamic</entry>
1756               <entry>-</entry>
1757             </row>
1758             <row>
1759               <entry><option>-fbyte-code</option></entry>
1760               <entry>Generate byte-code</entry>
1761               <entry>dynamic</entry>
1762               <entry>-</entry>
1763             </row>
1764             <row>
1765               <entry><option>-fobject-code</option></entry>
1766               <entry>Generate object code</entry>
1767               <entry>dynamic</entry>
1768               <entry>-</entry>
1769             </row>
1770           </tbody>
1771         </tgroup>
1772       </informaltable>
1773     </sect2>
1774
1775     <sect2>
1776       <title>Linking options</title>
1777
1778       <para><xref linkend="options-linker"/></para>
1779
1780       <informaltable>
1781         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1782           <thead>
1783             <row>
1784               <entry>Flag</entry>
1785               <entry>Description</entry>
1786               <entry>Static/Dynamic</entry>
1787               <entry>Reverse</entry>
1788             </row>
1789           </thead>
1790           <tbody>
1791             <row>
1792               <entry><option>-shared</option></entry>
1793               <entry>Generate a shared library (as opposed to an executable)</entry>
1794               <entry>dynamic</entry>
1795               <entry>-</entry>
1796             </row>
1797             <row>
1798               <entry><option>-fPIC</option></entry>
1799               <entry>Generate position-independent code (where available)</entry>
1800               <entry>static</entry>
1801               <entry>-</entry>
1802             </row>
1803             <row>
1804               <entry><option>-dynamic</option></entry>
1805               <entry>Use dynamic Haskell libraries (if available)</entry>
1806               <entry>static</entry>
1807               <entry>-</entry>
1808             </row>
1809             <row>
1810               <entry><option>-dynload</option></entry>
1811               <entry>Selects one of a number of modes for finding shared
1812                 libraries at runtime.</entry>
1813               <entry>static</entry>
1814               <entry>-</entry>
1815             </row>
1816             <row>
1817               <entry><option>-framework</option> <replaceable>name</replaceable></entry>
1818               <entry>On Darwin/MacOS X only, link in the framework <replaceable>name</replaceable>.
1819                 This option corresponds to the <option>-framework</option> option for Apple's Linker.</entry>
1820               <entry>dynamic</entry>
1821               <entry>-</entry>
1822             </row>
1823             <row>
1824               <entry><option>-framework-path</option> <replaceable>name</replaceable></entry>
1825               <entry>On Darwin/MacOS X only, add <replaceable>dir</replaceable> to the list of
1826                 directories searched for frameworks.
1827                 This option corresponds to the <option>-F</option> option for Apple's Linker.</entry>
1828               <entry>dynamic</entry>
1829               <entry>-</entry>
1830             </row>
1831             <row>
1832               <entry><option>-l</option><replaceable>lib</replaceable></entry>
1833               <entry>Link in library <replaceable>lib</replaceable></entry>
1834               <entry>dynamic</entry>
1835               <entry>-</entry>
1836             </row>
1837             <row>
1838               <entry><option>-L</option><replaceable>dir</replaceable></entry>
1839               <entry>Add <replaceable>dir</replaceable> to the list of
1840               directories searched for libraries</entry>
1841               <entry>dynamic</entry>
1842               <entry>-</entry>
1843             </row>
1844             <row>
1845               <entry><option>-main-is</option></entry>
1846               <entry>Set main module and function</entry>
1847               <entry>dynamic</entry>
1848               <entry>-</entry>
1849             </row>
1850             <row>
1851               <entry><option>--mk-dll</option></entry>
1852               <entry>DLL-creation mode (Windows only)</entry>
1853               <entry>dynamic</entry>
1854               <entry>-</entry>
1855             </row>
1856             <row>
1857               <entry><option>-no-hs-main</option></entry>
1858               <entry>Don't assume this program contains <literal>main</literal></entry>
1859               <entry>dynamic</entry>
1860               <entry>-</entry>
1861             </row>
1862             <row>
1863               <entry><option>-rtsopts</option>, <option>-rtsopts={none,some,all}</option></entry>
1864               <entry>Control whether the RTS behaviour can be tweaked via command-line
1865           flags and the <literal>GHCRTS</literal> environment
1866           variable. Using <literal>none</literal> means no RTS flags can be given; <literal>some</literal> means only a minimum of safe options can be given (the default), and <literal>all</literal> (or no argument at all) means that all RTS flags are permitted.</entry>
1867               <entry>dynamic</entry>
1868               <entry>-</entry>
1869             </row>
1870             <row>
1871               <entry><option>-with-rtsopts=<replaceable>opts</replaceable></option></entry>
1872               <entry>Set the default RTS options to
1873           <replaceable>opts</replaceable>.</entry>
1874               <entry>dynamic</entry>
1875               <entry>-</entry>
1876             </row>
1877             <row>
1878               <entry><option>-no-link</option></entry>
1879               <entry>Omit linking</entry>
1880               <entry>dynamic</entry>
1881               <entry>-</entry>
1882             </row>
1883             <row>
1884               <entry><option>-split-objs</option></entry>
1885               <entry>Split objects (for libraries)</entry>
1886               <entry>dynamic</entry>
1887               <entry>-</entry>
1888             </row>
1889             <row>
1890               <entry><option>-static</option></entry>
1891               <entry>Use static Haskell libraries</entry>
1892               <entry>static</entry>
1893               <entry>-</entry>
1894             </row>
1895             <row>
1896               <entry><option>-threaded</option></entry>
1897               <entry>Use the threaded runtime</entry>
1898               <entry>static</entry>
1899               <entry>-</entry>
1900             </row>
1901             <row>
1902               <entry><option>-debug</option></entry>
1903               <entry>Use the debugging runtime</entry>
1904               <entry>static</entry>
1905               <entry>-</entry>
1906             </row>
1907             <row>
1908               <entry><option>-eventlog</option></entry>
1909               <entry>Enable runtime event tracing</entry>
1910               <entry>static</entry>
1911               <entry>-</entry>
1912             </row>
1913             <row>
1914               <entry><option>-fno-gen-manifest</option></entry>
1915               <entry>Do not generate a manifest file (Windows only)</entry>
1916               <entry>dynamic</entry>
1917               <entry>-</entry>
1918             </row>
1919             <row>
1920               <entry><option>-fno-embed-manifest</option></entry>
1921               <entry>Do not embed the manifest in the executable (Windows only)</entry>
1922               <entry>dynamic</entry>
1923               <entry>-</entry>
1924             </row>
1925             <row>
1926               <entry><option>-fno-shared-implib</option></entry>
1927               <entry>Don't generate an import library for a DLL (Windows only)</entry>
1928               <entry>dynamic</entry>
1929               <entry>-</entry>
1930             </row>
1931             <row>
1932               <entry><option>-dylib-install-name</option> <replaceable>path</replaceable></entry>
1933               <entry>Set the install name (via <literal>-install_name</literal> passed to Apple's
1934               linker), specifying the full install path of the library file. Any libraries
1935               or executables that link with it later will pick up that path as their
1936               runtime search location for it. (Darwin/MacOS X only)</entry>
1937               <entry>dynamic</entry>
1938               <entry>-</entry>
1939             </row>
1940           </tbody>
1941         </tgroup>
1942       </informaltable>
1943     </sect2>
1944
1945     <sect2>
1946       <title>Replacing phases</title>
1947
1948       <para><xref linkend="replacing-phases"/></para>
1949
1950       <informaltable>
1951         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1952           <thead>
1953             <row>
1954               <entry>Flag</entry>
1955               <entry>Description</entry>
1956               <entry>Static/Dynamic</entry>
1957               <entry>Reverse</entry>
1958             </row>
1959           </thead>
1960           <tbody>
1961             <row>
1962               <entry><option>-pgmL</option> <replaceable>cmd</replaceable></entry>
1963               <entry>Use <replaceable>cmd</replaceable> as the literate pre-processor</entry>
1964               <entry>dynamic</entry>
1965               <entry>-</entry>
1966             </row>
1967             <row>
1968               <entry><option>-pgmP</option> <replaceable>cmd</replaceable></entry>
1969               <entry>Use <replaceable>cmd</replaceable> as the C
1970               pre-processor (with <option>-cpp</option> only)</entry>
1971               <entry>dynamic</entry>
1972               <entry>-</entry>
1973             </row>
1974             <row>
1975               <entry><option>-pgmc</option> <replaceable>cmd</replaceable></entry>
1976               <entry>Use <replaceable>cmd</replaceable> as the C compiler</entry>
1977               <entry>dynamic</entry>
1978               <entry>-</entry>
1979             <row>
1980               <entry><option>-pgmlo</option> <replaceable>cmd</replaceable></entry>
1981               <entry>Use <replaceable>cmd</replaceable> as the LLVM optimiser</entry>
1982               <entry>dynamic</entry>
1983               <entry>-</entry>
1984             </row>
1985             <row>
1986               <entry><option>-pgmlc</option> <replaceable>cmd</replaceable></entry>
1987               <entry>Use <replaceable>cmd</replaceable> as the LLVM compiler</entry>
1988               <entry>dynamic</entry>
1989               <entry>-</entry>
1990             </row>
1991             </row>
1992             <row>
1993               <entry><option>-pgmm</option> <replaceable>cmd</replaceable></entry>
1994               <entry>Use <replaceable>cmd</replaceable> as the mangler</entry>
1995               <entry>dynamic</entry>
1996               <entry>-</entry>
1997             </row>
1998             <row>
1999               <entry><option>-pgms</option> <replaceable>cmd</replaceable></entry>
2000               <entry>Use <replaceable>cmd</replaceable> as the splitter</entry>
2001               <entry>dynamic</entry>
2002               <entry>-</entry>
2003             </row>
2004             <row>
2005               <entry><option>-pgma</option> <replaceable>cmd</replaceable></entry>
2006               <entry>Use <replaceable>cmd</replaceable> as the assembler</entry>
2007               <entry>dynamic</entry>
2008               <entry>-</entry>
2009             </row>
2010             <row>
2011               <entry><option>-pgml</option> <replaceable>cmd</replaceable></entry>
2012               <entry>Use <replaceable>cmd</replaceable> as the linker</entry>
2013               <entry>dynamic</entry>
2014               <entry>-</entry>
2015             </row>
2016             <row>
2017               <entry><option>-pgmdll</option> <replaceable>cmd</replaceable></entry>
2018               <entry>Use <replaceable>cmd</replaceable> as the DLL generator</entry>
2019               <entry>dynamic</entry>
2020               <entry>-</entry>
2021             </row>
2022             <row>
2023               <entry><option>-pgmF</option> <replaceable>cmd</replaceable></entry>
2024               <entry>Use <replaceable>cmd</replaceable> as the pre-processor
2025               (with <option>-F</option> only)</entry>
2026               <entry>dynamic</entry>
2027               <entry>-</entry>
2028             </row>
2029             <row>
2030               <entry><option>-pgmwindres</option> <replaceable>cmd</replaceable></entry>
2031               <entry>Use <replaceable>cmd</replaceable> as the program for
2032                 embedding manifests on Windows.</entry>
2033               <entry>dynamic</entry>
2034               <entry>-</entry>
2035             </row>
2036           </tbody>
2037         </tgroup>
2038       </informaltable>
2039       <indexterm><primary><option>-pgmL</option></primary></indexterm>
2040       <indexterm><primary><option>-pgmP</option></primary></indexterm>
2041       <indexterm><primary><option>-pgmc</option></primary></indexterm>
2042       <indexterm><primary><option>-pgmlo</option></primary></indexterm>
2043       <indexterm><primary><option>-pgmlc</option></primary></indexterm>
2044       <indexterm><primary><option>-pgma</option></primary></indexterm>
2045       <indexterm><primary><option>-pgml</option></primary></indexterm>
2046       <indexterm><primary><option>-pgmdll</option></primary></indexterm>
2047       <indexterm><primary><option>-pgmF</option></primary></indexterm>
2048
2049     </sect2>
2050
2051     <sect2>
2052       <title>Forcing options to particular phases</title>
2053
2054       <para><xref linkend="forcing-options-through"/></para>
2055
2056       <informaltable>
2057         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2058           <thead>
2059             <row>
2060               <entry>Flag</entry>
2061               <entry>Description</entry>
2062               <entry>Static/Dynamic</entry>
2063               <entry>Reverse</entry>
2064             </row>
2065           </thead>
2066           <tbody>
2067             <row>
2068               <entry><option>-optL</option> <replaceable>option</replaceable></entry>
2069               <entry>pass <replaceable>option</replaceable> to the literate pre-processor</entry>
2070               <entry>dynamic</entry>
2071               <entry>-</entry>
2072             </row>
2073             <row>
2074               <entry><option>-optP</option> <replaceable>option</replaceable></entry>
2075               <entry>pass <replaceable>option</replaceable> to cpp (with
2076               <option>-cpp</option> only)</entry>
2077               <entry>dynamic</entry>
2078               <entry>-</entry>
2079             </row>
2080             <row>
2081               <entry><option>-optF</option> <replaceable>option</replaceable></entry>
2082               <entry>pass <replaceable>option</replaceable> to the
2083               custom pre-processor</entry>
2084               <entry>dynamic</entry>
2085               <entry>-</entry>
2086             </row>
2087             <row>
2088               <entry><option>-optc</option> <replaceable>option</replaceable></entry>
2089               <entry>pass <replaceable>option</replaceable> to the C compiler</entry>
2090               <entry>dynamic</entry>
2091               <entry>-</entry>
2092             </row>
2093             <row>
2094               <entry><option>-optlo</option> <replaceable>option</replaceable></entry>
2095               <entry>pass <replaceable>option</replaceable> to the LLVM optimiser</entry>
2096               <entry>dynamic</entry>
2097               <entry>-</entry>
2098             </row>
2099             <row>
2100               <entry><option>-optlc</option> <replaceable>option</replaceable></entry>
2101               <entry>pass <replaceable>option</replaceable> to the LLVM compiler</entry>
2102               <entry>dynamic</entry>
2103               <entry>-</entry>
2104             </row>
2105             <row>
2106               <entry><option>-optm</option> <replaceable>option</replaceable></entry>
2107               <entry>pass <replaceable>option</replaceable> to the mangler</entry>
2108               <entry>dynamic</entry>
2109               <entry>-</entry>
2110             </row>
2111             <row>
2112               <entry><option>-opta</option> <replaceable>option</replaceable></entry>
2113               <entry>pass <replaceable>option</replaceable> to the assembler</entry>
2114               <entry>dynamic</entry>
2115               <entry>-</entry>
2116             </row>
2117             <row>
2118               <entry><option>-optl</option> <replaceable>option</replaceable></entry>
2119               <entry>pass <replaceable>option</replaceable> to the linker</entry>
2120               <entry>dynamic</entry>
2121               <entry>-</entry>
2122             </row>
2123             <row>
2124               <entry><option>-optdll</option> <replaceable>option</replaceable></entry>
2125               <entry>pass <replaceable>option</replaceable> to the DLL generator</entry>
2126               <entry>dynamic</entry>
2127               <entry>-</entry>
2128             </row>
2129             <row>
2130               <entry><option>-optwindres</option> <replaceable>option</replaceable></entry>
2131               <entry>pass <replaceable>option</replaceable> to <literal>windres</literal>.</entry>
2132               <entry>dynamic</entry>
2133               <entry>-</entry>
2134             </row>
2135           </tbody>
2136         </tgroup>
2137       </informaltable>
2138     </sect2>
2139
2140     <sect2>
2141       <title>Platform-specific options</title>
2142
2143       <para><xref linkend="options-platform"/></para>
2144
2145       <informaltable>
2146         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2147           <thead>
2148             <row>
2149               <entry>Flag</entry>
2150               <entry>Description</entry>
2151               <entry>Static/Dynamic</entry>
2152               <entry>Reverse</entry>
2153             </row>
2154           </thead>
2155           <tbody>
2156             <row>
2157               <entry><option>-msse2</option></entry>
2158               <entry>(x86 only) Use SSE2 for floating point</entry>
2159               <entry>dynamic</entry>
2160               <entry>-</entry>
2161             </row>
2162           </tbody>
2163           <tbody>
2164             <row>
2165               <entry><option>-monly-[432]-regs</option></entry>
2166               <entry>(x86 only) give some registers back to the C compiler</entry>
2167               <entry>dynamic</entry>
2168               <entry>-</entry>
2169             </row>
2170           </tbody>
2171         </tgroup>
2172       </informaltable>
2173     </sect2>
2174
2175
2176     <sect2>
2177       <title>External core file options</title>
2178
2179       <para><xref linkend="ext-core"/></para>
2180
2181       <informaltable>
2182         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2183           <thead>
2184             <row>
2185               <entry>Flag</entry>
2186               <entry>Description</entry>
2187               <entry>Static/Dynamic</entry>
2188               <entry>Reverse</entry>
2189             </row>
2190           </thead>
2191           <tbody>
2192             <row>
2193               <entry><option>-fext-core</option></entry>
2194               <entry>Generate <filename>.hcr</filename> external Core files</entry>
2195               <entry>dynamic</entry>
2196               <entry>-</entry>
2197             </row>
2198           </tbody>
2199         </tgroup>
2200       </informaltable>
2201     </sect2>
2202
2203
2204     <sect2>
2205       <title>Compiler debugging options</title>
2206
2207       <para><xref linkend="options-debugging"/></para>
2208
2209       <informaltable>
2210         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2211           <thead>
2212             <row>
2213               <entry>Flag</entry>
2214               <entry>Description</entry>
2215               <entry>Static/Dynamic</entry>
2216               <entry>Reverse</entry>
2217             </row>
2218           </thead>
2219           <tbody>
2220             <row>
2221               <entry><option>-dcore-lint</option></entry>
2222               <entry>Turn on internal sanity checking</entry>
2223               <entry>dynamic</entry>
2224               <entry>-</entry>
2225             </row>
2226             <row>
2227               <entry><option>-ddump-asm</option></entry>
2228               <entry>Dump assembly</entry>
2229               <entry>dynamic</entry>
2230               <entry>-</entry>
2231             </row>
2232             <row>
2233               <entry><option>-ddump-bcos</option></entry>
2234               <entry>Dump interpreter byte code</entry>
2235               <entry>dynamic</entry>
2236               <entry>-</entry>
2237             </row>
2238             <row>
2239               <entry><option>-ddump-cmm</option></entry>
2240               <entry>Dump C-- output</entry>
2241               <entry>dynamic</entry>
2242               <entry>-</entry>
2243             </row>
2244             <row>
2245               <entry><option>-ddump-cpranal</option></entry>
2246               <entry>Dump output from CPR analysis</entry>
2247               <entry>dynamic</entry>
2248               <entry>-</entry>
2249             </row>
2250             <row>
2251               <entry><option>-ddump-cse</option></entry>
2252               <entry>Dump CSE output</entry>
2253               <entry>dynamic</entry>
2254               <entry>-</entry>
2255             </row>
2256             <row>
2257               <entry><option>-ddump-deriv</option></entry>
2258               <entry>Dump deriving output</entry>
2259               <entry>dynamic</entry>
2260               <entry>-</entry>
2261             </row>
2262             <row>
2263               <entry><option>-ddump-ds</option></entry>
2264               <entry>Dump desugarer output</entry>
2265               <entry>dynamic</entry>
2266               <entry>-</entry>
2267             </row>
2268             <row>
2269               <entry><option>-ddump-flatC</option></entry>
2270               <entry>Dump &ldquo;flat&rdquo; C</entry>
2271               <entry>dynamic</entry>
2272               <entry>-</entry>
2273             </row>
2274             <row>
2275               <entry><option>-ddump-foreign</option></entry>
2276               <entry>Dump <literal>foreign export</literal> stubs</entry>
2277               <entry>dynamic</entry>
2278               <entry>-</entry>
2279             </row>
2280             <row>
2281               <entry><option>-ddump-hpc</option></entry>
2282               <entry>Dump after instrumentation for program coverage</entry>
2283               <entry>dynamic</entry>
2284               <entry>-</entry>
2285             </row>
2286             <row>
2287               <entry><option>-ddump-inlinings</option></entry>
2288               <entry>Dump inlining info</entry>
2289               <entry>dynamic</entry>
2290               <entry>-</entry>
2291             </row>
2292             <row>
2293               <entry><option>-ddump-llvm</option></entry>
2294               <entry>Dump LLVM intermediate code</entry>
2295               <entry>dynamic</entry>
2296               <entry>-</entry>
2297             </row>
2298             <row>
2299               <entry><option>-ddump-occur-anal</option></entry>
2300               <entry>Dump occurrence analysis output</entry>
2301               <entry>dynamic</entry>
2302               <entry>-</entry>
2303             </row>
2304             <row>
2305               <entry><option>-ddump-opt-cmm</option></entry>
2306               <entry>Dump the results of C-- to C-- optimising passes</entry>
2307               <entry>dynamic</entry>
2308               <entry>-</entry>
2309             </row>
2310             <row>
2311               <entry><option>-ddump-parsed</option></entry>
2312               <entry>Dump parse tree</entry>
2313               <entry>dynamic</entry>
2314               <entry>-</entry>
2315             </row>
2316             <row>
2317               <entry><option>-ddump-prep</option></entry>
2318               <entry>Dump prepared core</entry>
2319               <entry>dynamic</entry>
2320               <entry>-</entry>
2321             </row>
2322             <row>
2323               <entry><option>-ddump-rn</option></entry>
2324               <entry>Dump renamer output</entry>
2325               <entry>dynamic</entry>
2326               <entry>-</entry>
2327             </row>
2328             <row>
2329               <entry><option>-ddump-rule-firings</option></entry>
2330               <entry>Dump rule firing info</entry>
2331               <entry>dynamic</entry>
2332               <entry>-</entry>
2333             </row>
2334             <row>
2335               <entry><option>-ddump-rule-rewrites</option></entry>
2336               <entry>Dump detailed rule firing info</entry>
2337               <entry>dynamic</entry>
2338               <entry>-</entry>
2339             </row>
2340             <row>
2341               <entry><option>-ddump-rules</option></entry>
2342               <entry>Dump rules</entry>
2343               <entry>dynamic</entry>
2344               <entry>-</entry>
2345             </row>
2346             <row>
2347               <entry><option>-ddump-simpl</option></entry>
2348               <entry>Dump final simplifier output</entry>
2349               <entry>dynamic</entry>
2350               <entry>-</entry>
2351             </row>
2352             <row>
2353               <entry><option>-ddump-simpl-phases</option></entry>
2354               <entry>Dump output from each simplifier phase</entry>
2355               <entry>dynamic</entry>
2356               <entry>-</entry>
2357             </row>
2358             <row>
2359               <entry><option>-ddump-simpl-iterations</option></entry>
2360               <entry>Dump output from each simplifier iteration</entry>
2361               <entry>dynamic</entry>
2362               <entry>-</entry>
2363             </row>
2364             <row>
2365               <entry><option>-ddump-spec</option></entry>
2366               <entry>Dump specialiser output</entry>
2367               <entry>dynamic</entry>
2368               <entry>-</entry>
2369             </row>
2370             <row>
2371               <entry><option>-ddump-splices</option></entry>
2372               <entry>Dump TH spliced expressions, and what they evaluate to</entry>
2373               <entry>dynamic</entry>
2374               <entry>-</entry>
2375             </row>
2376             <row>
2377               <entry><option>-ddump-stg</option></entry>
2378               <entry>Dump final STG</entry>
2379               <entry>dynamic</entry>
2380               <entry>-</entry>
2381             </row>
2382             <row>
2383               <entry><option>-ddump-stranal</option></entry>
2384               <entry>Dump strictness analyser output</entry>
2385               <entry>dynamic</entry>
2386               <entry>-</entry>
2387             </row>
2388             <row>
2389               <entry><option>-ddump-tc</option></entry>
2390               <entry>Dump typechecker output</entry>
2391               <entry>dynamic</entry>
2392               <entry>-</entry>
2393             </row>
2394             <row>
2395               <entry><option>-ddump-types</option></entry>
2396               <entry>Dump type signatures</entry>
2397               <entry>dynamic</entry>
2398               <entry>-</entry>
2399             </row>
2400             <row>
2401               <entry><option>-ddump-worker-wrapper</option></entry>
2402               <entry>Dump worker-wrapper output</entry>
2403               <entry>dynamic</entry>
2404               <entry>-</entry>
2405             </row>
2406             <row>
2407               <entry><option>-ddump-if-trace</option></entry>
2408               <entry>Trace interface files</entry>
2409               <entry>dynamic</entry>
2410               <entry>-</entry>
2411             </row>
2412             <row>
2413               <entry><option>-ddump-tc-trace</option></entry>
2414               <entry>Trace typechecker</entry>
2415               <entry>dynamic</entry>
2416               <entry>-</entry>
2417             </row>
2418             <row>
2419               <entry><option>-ddump-rn-trace</option></entry>
2420               <entry>Trace renamer</entry>
2421               <entry>dynamic</entry>
2422               <entry>-</entry>
2423             </row>
2424             <row>
2425               <entry><option>-ddump-rn-stats</option></entry>
2426               <entry>Renamer stats</entry>
2427               <entry>dynamic</entry>
2428               <entry>-</entry>
2429             </row>
2430             <row>
2431               <entry><option>-ddump-simpl-stats</option></entry>
2432               <entry>Dump simplifier stats</entry>
2433               <entry>dynamic</entry>
2434               <entry>-</entry>
2435             </row>
2436             <row>
2437               <entry><option>-dno-debug-output</option></entry>
2438               <entry>Suppress unsolicited debugging output</entry>
2439               <entry>static</entry>
2440               <entry>-</entry>
2441             </row>
2442             <row>
2443               <entry><option>-dppr-debug</option></entry>
2444               <entry>Turn on debug printing (more verbose)</entry>
2445               <entry>static</entry>
2446               <entry>-</entry>
2447             </row>
2448             <row>
2449               <entry><option>-dsuppress-uniques</option></entry>
2450               <entry>Suppress the printing of uniques in debug output (easier to use <command>diff</command>.</entry>
2451               <entry>static</entry>
2452               <entry>-</entry>
2453             </row>
2454             <row>
2455               <entry><option>-dsuppress-coercions</option></entry>
2456               <entry>Suppress the printing of coercions in Core dumps to make them shorter.</entry>
2457               <entry>static</entry>
2458               <entry>-</entry>
2459             </row>
2460             <row>
2461               <entry><option>-dsuppress-module-prefixes</option></entry>
2462               <entry>Suppress the printing of module qualification prefixes in Core dumps to make them easier to read.</entry>
2463               <entry>static</entry>
2464               <entry>-</entry>
2465             </row>
2466             <row>
2467               <entry><option>-dppr-noprags</option></entry>
2468               <entry>Don't output pragma info in dumps</entry>
2469               <entry>static</entry>
2470               <entry>-</entry>
2471             </row>
2472             <row>
2473               <entry><option>-dppr-user-length</option></entry>
2474               <entry>Set the depth for printing expressions in error msgs</entry>
2475               <entry>static</entry>
2476               <entry>-</entry>
2477             </row>
2478             <row>
2479               <entry><option>-dsource-stats</option></entry>
2480               <entry>Dump haskell source stats</entry>
2481               <entry>dynamic</entry>
2482               <entry>-</entry>
2483             </row>
2484             <row>
2485               <entry><option>-dcmm-lint</option></entry>
2486               <entry>C-- pass sanity checking</entry>
2487               <entry>dynamic</entry>
2488               <entry>-</entry>
2489             </row>
2490             <row>
2491               <entry><option>-dstg-lint</option></entry>
2492               <entry>STG pass sanity checking</entry>
2493               <entry>dynamic</entry>
2494               <entry>-</entry>
2495             </row>
2496             <row>
2497               <entry><option>-dstg-stats</option></entry>
2498               <entry>Dump STG stats</entry>
2499               <entry>dynamic</entry>
2500               <entry>-</entry>
2501             </row>
2502             <row>
2503               <entry><option>-dverbose-core2core</option></entry>
2504               <entry>Show output from each core-to-core pass</entry>
2505               <entry>dynamic</entry>
2506               <entry>-</entry>
2507             </row>
2508             <row>
2509               <entry><option>-dverbose-stg2stg</option></entry>
2510               <entry>Show output from each STG-to-STG pass</entry>
2511               <entry>dynamic</entry>
2512               <entry>-</entry>
2513             </row>
2514             <row>
2515               <entry><option>-dshow-passes</option></entry>
2516               <entry>Print out each pass name as it happens</entry>
2517               <entry>dynamic</entry>
2518               <entry>-</entry>
2519             </row>
2520             <row>
2521               <entry><option>-dfaststring-stats</option></entry>
2522               <entry>Show statistics for fast string usage when finished</entry>
2523               <entry>dynamic</entry>
2524               <entry>-</entry>
2525             </row>
2526           </tbody>
2527         </tgroup>
2528       </informaltable>
2529     </sect2>
2530
2531     <sect2>
2532       <title>Misc compiler options</title>
2533
2534       <informaltable>
2535         <tgroup cols="4" align="left" colsep="1" rowsep="1">
2536           <thead>
2537             <row>
2538               <entry>Flag</entry>
2539               <entry>Description</entry>
2540               <entry>Static/Dynamic</entry>
2541               <entry>Reverse</entry>
2542             </row>
2543           </thead>
2544           <tbody>
2545             <row>
2546               <entry><option>-fno-hi-version-check</option></entry>
2547               <entry>Don't complain about <literal>.hi</literal> file mismatches</entry>
2548               <entry>static</entry>
2549               <entry>-</entry>
2550             </row>
2551             <row>
2552               <entry><option>-dno-black-holing</option></entry>
2553               <entry>Turn off black holing (probably doesn't work)</entry>
2554               <entry>static</entry>
2555               <entry>-</entry>
2556             </row>
2557             <row>
2558               <entry><option>-fhistory-size</option></entry>
2559               <entry>Set simplification history size</entry>
2560               <entry>static</entry>
2561               <entry>-</entry>
2562             </row>
2563             <row>
2564               <entry><option>-funregisterised</option></entry>
2565               <entry>Unregisterised compilation (use <option>-unreg</option> instead)</entry>
2566               <entry>static</entry>
2567               <entry>-</entry>
2568             </row>
2569             <row>
2570               <entry><option>-fno-asm-mangling</option></entry>
2571               <entry>Turn off assembly mangling (use <option>-unreg</option> instead)</entry>
2572               <entry>dynamic</entry>
2573               <entry>-</entry>
2574             </row>
2575             <row>
2576               <entry><option>-fno-ghci-sandbox</option></entry>
2577               <entry>Turn off the GHCi sandbox. Means computations are run in teh main thread, rather than a forked thread.</entry>
2578               <entry>dynamic</entry>
2579               <entry>-</entry>
2580             </row>
2581           </tbody>
2582         </tgroup>
2583       </informaltable>
2584     </sect2>
2585   </sect1>
2586
2587
2588 <!--
2589 Still to document:
2590
2591 Misc:
2592   ,  ( "H"                 , HasArg (setHeapSize . fromIntegral . decodeSize) )
2593
2594   -Bdir
2595 -->
2596
2597 <!-- Emacs stuff:
2598      ;;; Local Variables: ***
2599      ;;; sgml-parent-document: ("users_guide.xml" "book" "chapter") ***
2600      ;;; End: ***
2601  -->