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