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>-short-ghci-banner</option></entry>
 486               <entry>Display a one-line banner at GHCi startup</entry>
 487               <entry>dynamic</entry>
 488               <entry>-</entry>
 489             </row>
 490             <row>
 491               <entry><option>-long-ghci-banner</option></entry>
 492               <entry>Display a full banner at GHCi startup</entry>
 493               <entry>dynamic</entry>
 494               <entry>-</entry>
 495             </row>
 496             <row>
 497               <entry><option>-fdebugging</option></entry>
 498               <entry>Generate bytecode enabled for debugging</entry>
 499               <entry>dynamic</entry>
 500               <entry>-</entry>
 501             </row>
 502             <row>
 503               <entry><option>-fno-debugging</option></entry>
 504               <entry>Do not include debugging information in bytecodes</entry>
 505               <entry>dynamic</entry>
 506               <entry>-</entry>
 507             </row>
 508             <row>
 509               <entry><option>-fno-print-bind-result</option></entry>
 510               <entry><link linkend="ghci-stmts">Turn off printing of binding results in GHCi</link></entry>
 511               <entry>dynamic</entry>
 512               <entry>-</entry>
 513             </row>
 514           </tbody>
 515         </tgroup>
 516       </informaltable>
 517     </sect2>
 518
 519     <sect2>
 520       <title>Packages</title>
 521
 522       <para><xref linkend="packages"/></para>
 523
 524       <informaltable>
 525         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 526           <thead>
 527             <row>
 528               <entry>Flag</entry>
 529               <entry>Description</entry>
 530               <entry>Static/Dynamic</entry>
 531               <entry>Reverse</entry>
 532             </row>
 533           </thead>
 534           <tbody>
 535             <row>
 536               <entry><option>-package-name</option> <replaceable>P</replaceable></entry>
 537               <entry>Compile to be part of package <replaceable>P</replaceable></entry>
 538               <entry>dynamic</entry>
 539               <entry>-</entry>
 540             </row>
 541             <row>
 542               <entry><option>-package</option> <replaceable>P</replaceable></entry>
 543               <entry>Expose package <replaceable>P</replaceable></entry>
 544               <entry>static/<literal>:set</literal></entry>
 545               <entry>-</entry>
 546             </row>
 547             <row>
 548               <entry><option>-hide-all-packages</option></entry>
 549               <entry>Hide all packages by default</entry>
 550               <entry>static</entry>
 551               <entry>-</entry>
 552             </row>
 553             <row>
 554               <entry><option>-hide-package</option> <replaceable>name</replaceable></entry>
 555               <entry>Hide package <replaceable>P</replaceable></entry>
 556               <entry>static/<literal>:set</literal></entry>
 557               <entry>-</entry>
 558             </row>
 559             <row>
 560               <entry><option>-ignore-package</option> <replaceable>name</replaceable></entry>
 561               <entry>Ignore package <replaceable>P</replaceable></entry>
 562               <entry>static/<literal>:set</literal></entry>
 563               <entry>-</entry>
 564             </row>
 565             <row>
 566               <entry><option>-package-conf</option> <replaceable>file</replaceable></entry>
 567               <entry>Load more packages from <replaceable>file</replaceable></entry>
 568               <entry>static</entry>
 569               <entry>-</entry>
 570             </row>
 571             <row>
 572               <entry><option>-no-user-package-conf</option></entry>
 573               <entry>Don't load the user's package config file.</entry>
 574               <entry>static</entry>
 575               <entry>-</entry>
 576             </row>
 577           </tbody>
 578         </tgroup>
 579       </informaltable>
 580     </sect2>
 581
 582     <sect2>
 583       <title>Language options</title>
 584
 585       <para><xref linkend="options-language"/></para>
 586
 587       <informaltable>
 588         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 589           <thead>
 590             <row>
 591               <entry>Flag</entry>
 592               <entry>Description</entry>
 593               <entry>Static/Dynamic</entry>
 594               <entry>Reverse</entry>
 595             </row>
 596           </thead>
 597           <tbody>
 598             <row>
 599               <entry><option>-fallow-overlapping-instances</option></entry>
 600               <entry>Enable <link linkend="instance-overlap">overlapping instances</link></entry>
 601               <entry>dynamic</entry>
 602               <entry><option>-fno-allow-overlapping-instances</option></entry>
 603             </row>
 604             <row>
 605               <entry><option>-fallow-incoherent-instances</option></entry>
 606               <entry>Enable <link linkend="instance-overlap">incoherent instances</link>.
 607               Implies <option>-fallow-overlapping-instances</option> </entry>
 608               <entry>dynamic</entry>
 609               <entry><option>-fno-allow-incoherent-instances</option></entry>
 610             </row>
 611             <row>
 612               <entry><option>-fallow-undecidable-instances</option></entry>
 613               <entry>Enable <link linkend="undecidable-instances">undecidable instances</link></entry>
 614               <entry>dynamic</entry>
 615               <entry><option>-fno-allow-undecidable-instances</option></entry>
 616             </row>
 617             <row>
 618               <entry><option>-fcontext-stack=N</option><replaceable>n</replaceable></entry>
 619               <entry>set the <link linkend="undecidable-instances">limit for context reduction</link></entry>
 620               <entry>dynamic</entry>
 621               <entry><option>20</option></entry>
 622             </row>
 623             <row>
 624               <entry><option>-farrows</option></entry>
 625               <entry>Enable <link linkend="arrow-notation">arrow
 626               notation</link> extension</entry>
 627               <entry>dynamic</entry>
 628               <entry><option>-fno-arrows</option></entry>
 629             </row>
 630             <row>
 631               <entry><option>-ffi</option> or <option>-fffi</option></entry>
 632               <entry>Enable <link linkend="ffi">foreign function interface</link> (implied by
 633               <option>-fglasgow-exts</option>)</entry>
 634               <entry>dynamic</entry>
 635               <entry><option>-fno-ffi</option></entry>
 636             </row>
 637             <row>
 638               <entry><option>-fgenerics</option></entry>
 639               <entry>Enable <link linkend="generic-classes">generic classes</link></entry>
 640               <entry>dynamic</entry>
 641               <entry><option>-fno-fgenerics</option></entry>
 642             </row>
 643             <row>
 644               <entry><option>-fglasgow-exts</option></entry>
 645               <entry>Enable most language extensions</entry>
 646               <entry>dynamic</entry>
 647               <entry><option>-fno-glasgow-exts</option></entry>
 648             </row>
 649             <row>
 650               <entry><option>-fimplicit-params</option></entry>
 651               <entry>Enable <link linkend="implicit-parameters">Implicit Parameters</link>.
 652               Implied by <option>-fglasgow-exts</option>.</entry>
 653               <entry>dynamic</entry>
 654               <entry><option>-fno-implicit-params</option></entry>
 655             </row>
 656             <row>
 657               <entry><option>-firrefutable-tuples</option></entry>
 658               <entry>Make tuple pattern matching irrefutable</entry>
 659               <entry>dynamic</entry>
 660               <entry><option>-fno-irrefutable-tuples</option></entry>
 661             </row>
 662             <row>
 663               <entry><option>-fno-implicit-prelude</option></entry>
 664               <entry>Don't implicitly <literal>import Prelude</literal></entry>
 665               <entry>dynamic</entry>
 666               <entry><option>-fimplicit-prelude</option></entry>
 667             </row>
 668             <row>
 669               <entry><option>-fno-monomorphism-restriction</option></entry>
 670               <entry>Disable the <link linkend="monomorphism">monomorphism restriction</link></entry>
 671               <entry>dynamic</entry>
 672               <entry><option>-fmonomorphism-restriction</option></entry>
 673             </row>
 674             <row>
 675               <entry><option>-fno-mono-pat-binds</option></entry>
 676               <entry>Make <link linkend="monomorphism">pattern bindings polymorphic</link></entry>
 677               <entry>dynamic</entry>
 678               <entry><option>-fmono-pat-binds</option></entry>
 679             </row>
 680             <row>
 681               <entry><option>-fextended-default-rules</option></entry>
 682               <entry>Use GHCi's <link linkend="extended-default-rules">extended default rules</link> in a normal module</entry>
 683               <entry>dynamic</entry>
 684               <entry><option>-fno-extended-default-rules</option></entry>
 685             </row>
 686             <row>
 687               <entry><option>-foverloaded-strings</option></entry>
 688               <entry>Enable <link linkend="overloaded-strings">overloaded string literals</link>.
 689               </entry>
 690               <entry>dynamic</entry>
 691               <entry><option>-fno-overloaded-strings</option></entry>
 692             </row>
 693             <row>
 694               <entry><option>-fscoped-type-variables</option></entry>
 695               <entry>Enable <link linkend="scoped-type-variables">lexically-scoped type variables</link>.
 696               Implied by <option>-fglasgow-exts</option>.</entry>
 697               <entry>dynamic</entry>
 698               <entry><option>-fno-scoped-type-variables</option></entry>
 699             </row>
 700             <row>
 701               <entry><option>-fth</option></entry>
 702               <entry>Enable <link linkend="template-haskell">Template Haskell</link>.
 703                 No longer implied by <option>-fglasgow-exts</option>.</entry>
 704               <entry>dynamic</entry>
 705               <entry><option>-fno-th</option></entry>
 706             </row>
 707             <row>
 708               <entry><option>-ftype-families</option></entry>
 709               <entry>Enable <link linkend="type-families">type families</link>.</entry>
 710               <entry>dynamic</entry>
 711               <entry><option>-fno-type-families</option></entry>
 712             </row>
 713             <row>
 714               <entry><option>-fbang-patterns</option></entry>
 715               <entry>Enable <link linkend="bang-patterns">bang patterns</link>.</entry>
 716               <entry>dynamic</entry>
 717               <entry><option>-fno-bang-patterns</option></entry>
 718             </row>
 719           </tbody>
 720         </tgroup>
 721       </informaltable>
 722     </sect2>
 723
 724     <sect2>
 725       <title>Warnings</title>
 726
 727       <para><xref linkend="options-sanity"/></para>
 728
 729     <informaltable>
 730       <tgroup cols="4" align="left" colsep="1" rowsep="1">
 731         <thead>
 732           <row>
 733             <entry>Flag</entry>
 734             <entry>Description</entry>
 735             <entry>Static/Dynamic</entry>
 736             <entry>Reverse</entry>
 737           </row>
 738         </thead>
 739         <tbody>
 740           <row>
 741             <entry><option>-W</option></entry>
 742             <entry>enable normal warnings</entry>
 743             <entry>dynamic</entry>
 744             <entry><option>-w</option></entry>
 745           </row>
 746           <row>
 747             <entry><option>-w</option></entry>
 748             <entry>disable all warnings</entry>
 749             <entry>dynamic</entry>
 750             <entry>-</entry>
 751           </row>
 752           <row>
 753             <entry><option>-Wall</option></entry>
 754             <entry>enable almost all warnings (details in <xref linkend="options-sanity"/>)</entry>
 755             <entry>dynamic</entry>
 756             <entry><option>-w</option></entry>
 757           </row>
 758           <row>
 759             <entry><option>-Werror</option></entry>
 760             <entry>make warnings fatal</entry>
 761             <entry>dynamic</entry>
 762             <entry></entry>
 763           </row>
 764
 765           <row>
 766             <entry><option>-fwarn-deprecations</option></entry>
 767             <entry>warn about uses of functions &amp; types that are deprecated</entry>
 768             <entry>dynamic</entry>
 769             <entry><option>-fno-warn-deprecations</option></entry>
 770           </row>
 771
 772           <row>
 773             <entry><option>-fwarn-duplicate-exports</option></entry>
 774             <entry>warn when an entity is exported multiple times</entry>
 775             <entry>dynamic</entry>
 776             <entry><option>-fno-warn-duplicate-exports</option></entry>
 777           </row>
 778
 779           <row>
 780             <entry><option>-fwarn-hi-shadowing</option></entry>
 781             <entry>warn when a <literal>.hi</literal> file in the
 782             current directory shadows a library</entry>
 783             <entry>dynamic</entry>
 784             <entry><option>-fno-warn-hi-shadowing</option></entry>
 785           </row>
 786
 787           <row>
 788             <entry><option>-fwarn-implicit-prelude</option></entry>
 789             <entry>warn when the Prelude is implicitly imported</entry>
 790             <entry>dynamic</entry>
 791             <entry><option>-fno-warn-implicit-prelude</option></entry>
 792           </row>
 793
 794           <row>
 795             <entry><option>-fwarn-incomplete-patterns</option></entry>
 796             <entry>warn when a pattern match could fail</entry>
 797             <entry>dynamic</entry>
 798             <entry><option>-fno-warn-incomplete-patterns</option></entry>
 799           </row>
 800
 801           <row>
 802             <entry><option>-fwarn-incomplete-record-updates</option></entry>
 803             <entry>warn when a record update could fail</entry>
 804             <entry>dynamic</entry>
 805             <entry><option>-fno-warn-incomplete-record-updates</option></entry>
 806           </row>
 807
 808           <row>
 809             <entry><option>-fwarn-missing-fields</option></entry>
 810             <entry>warn when fields of a record are uninitialised</entry>
 811             <entry>dynamic</entry>
 812             <entry><option>-fno-warn-missing-fields</option></entry>
 813           </row>
 814
 815           <row>
 816             <entry><option>-fwarn-missing-methods</option></entry>
 817             <entry>warn when class methods are undefined</entry>
 818             <entry>dynamic</entry>
 819             <entry><option>-fno-warn-missing-methods</option></entry>
 820           </row>
 821
 822           <row>
 823             <entry><option>-fwarn-missing-signatures</option></entry>
 824             <entry>warn about top-level functions without signatures</entry>
 825             <entry>dynamic</entry>
 826             <entry><option>-fno-warn-missing-signatures</option></entry>
 827           </row>
 828
 829           <row>
 830             <entry><option>-fwarn-name-shadowing</option></entry>
 831             <entry>warn when names are shadowed</entry>
 832             <entry>dynamic</entry>
 833             <entry><option>-fno-warn-name-shadowing</option></entry>
 834           </row>
 835
 836           <row>
 837             <entry><option>-fwarn-orphans</option></entry>
 838             <entry>warn when the module contains "orphan" instance declarations
 839             or rewrite rules</entry>
 840             <entry>dynamic</entry>
 841             <entry><option>-fno-warn-orphans</option></entry>
 842           </row>
 843
 844           <row>
 845             <entry><option>-fwarn-overlapping-patterns</option></entry>
 846             <entry>warn about overlapping patterns</entry>
 847             <entry>dynamic</entry>
 848             <entry><option>-fno-warn-overlapping-patterns</option></entry>
 849           </row>
 850
 851           <row>
 852             <entry><option>-fwarn-simple-patterns</option></entry>
 853             <entry>warn about lambda-patterns that can fail</entry>
 854             <entry>dynamic</entry>
 855             <entry><option>-fno-warn-simple-patterns</option></entry>
 856           </row>
 857
 858           <row>
 859             <entry><option>-fwarn-tabs</option></entry>
 860             <entry>warn if there are tabs in the source file</entry>
 861             <entry>dynamic</entry>
 862             <entry><option>-fno-warn-tabs</option></entry>
 863           </row>
 864
 865           <row>
 866             <entry><option>-fwarn-type-defaults</option></entry>
 867             <entry>warn when defaulting happens</entry>
 868             <entry>dynamic</entry>
 869             <entry><option>-fno-warn-type-defaults</option></entry>
 870           </row>
 871
 872           <row>
 873             <entry><option>-fwarn-monomorphism-restriction</option></entry>
 874             <entry>warn when the Monomorphism Restriction is applied</entry>
 875             <entry>dynamic</entry>
 876             <entry><option>-fno-warn-monomorphism-restriction</option></entry>
 877           </row>
 878
 879           <row>
 880             <entry><option>-fwarn-unused-binds</option></entry>
 881             <entry>warn about bindings that are unused</entry>
 882             <entry>dynamic</entry>
 883             <entry><option>-fno-warn-unused-binds</option></entry>
 884           </row>
 885
 886           <row>
 887             <entry><option>-fwarn-unused-imports</option></entry>
 888             <entry>warn about unnecessary imports</entry>
 889             <entry>dynamic</entry>
 890             <entry><option>-fno-warn-unused-imports</option></entry>
 891           </row>
 892
 893           <row>
 894             <entry><option>-fwarn-unused-matches</option></entry>
 895             <entry>warn about variables in patterns that aren't used</entry>
 896             <entry>dynamic</entry>
 897             <entry><option>-fno-warn-unused-matches</option></entry>
 898           </row>
 899
 900           </tbody>
 901         </tgroup>
 902       </informaltable>
 903
 904     </sect2>
 905     <sect2>
 906       <title>Optimisation levels</title>
 907
 908       <para><xref linkend="options-optimise"/></para>
 909
 910       <informaltable>
 911         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 912           <thead>
 913             <row>
 914               <entry>Flag</entry>
 915               <entry>Description</entry>
 916               <entry>Static/Dynamic</entry>
 917               <entry>Reverse</entry>
 918             </row>
 919           </thead>
 920           <tbody>
 921             <row>
 922               <entry><option>-O</option></entry>
 923               <entry>Enable default optimisation (level 1)</entry>
 924               <entry>dynamic</entry>
 925               <entry><option>-O0</option></entry>
 926             </row>
 927             <row>
 928               <entry><option>-O</option><replaceable>n</replaceable></entry>
 929               <entry>Set optimisation level <replaceable>n</replaceable></entry>
 930               <entry>dynamic</entry>
 931               <entry><option>-O0</option></entry>
 932             </row>
 933           </tbody>
 934         </tgroup>
 935       </informaltable>
 936
 937     </sect2>
 938     <sect2>
 939       <title>Individual optimisations</title>
 940
 941       <para><xref linkend="options-f"/></para>
 942
 943       <informaltable>
 944         <tgroup cols="4" align="left" colsep="1" rowsep="1">
 945           <thead>
 946             <row>
 947               <entry>Flag</entry>
 948               <entry>Description</entry>
 949               <entry>Static/Dynamic</entry>
 950               <entry>Reverse</entry>
 951             </row>
 952           </thead>
 953           <tbody>
 954             <row>
 955               <entry><option>-fcase-merge</option></entry>
 956               <entry>Enable case-merging. Implied by <option>-O</option>.</entry>
 957               <entry>dynamic</entry>
 958               <entry><option>-fno-case-merge</option></entry>
 959             </row>
 960
 961             <row>
 962               <entry><option>-fdicts-strict</option></entry>
 963               <entry>Make dictionaries strict</entry>
 964               <entry>static</entry>
 965               <entry><option>-fno-dicts-strict</option></entry>
 966             </row>
 967
 968             <row>
 969               <entry><option>-fdo-eta-reduction</option></entry>
 970               <entry>Enable eta-reduction. Implied by <option>-O</option>.</entry>
 971               <entry>dynamic</entry>
 972               <entry><option>-fno-do-eta-reduction</option></entry>
 973             </row>
 974
 975             <row>
 976               <entry><option>-fdo-lambda-eta-expansion</option></entry>
 977               <entry>Enable lambda eta-reduction</entry>
 978               <entry>dynamic</entry>
 979               <entry><option>-fno-do-lambda-eta-expansion</option></entry>
 980             </row>
 981
 982             <row>
 983               <entry><option>-fexcess-precision</option></entry>
 984               <entry>Enable excess intermediate precision</entry>
 985               <entry>dynamic</entry>
 986               <entry><option>-fno-excess-precision</option></entry>
 987             </row>
 988
 989             <row>
 990               <entry><option>-fignore-asserts</option></entry>
 991               <entry>Ignore assertions in the source</entry>
 992               <entry>dynamic</entry>
 993               <entry><option>-fno-ignore-asserts</option></entry>
 994             </row>
 995
 996             <row>
 997               <entry><option>-fignore-interface-pragmas</option></entry>
 998               <entry>Ignore pragmas in interface files</entry>
 999               <entry>dynamic</entry>
1000               <entry><option>-fno-ignore-interface-pragmas</option></entry>
1001             </row>
1002
1003             <row>
1004               <entry><option>-fomit-interface-pragmas</option></entry>
1005               <entry>Don't generate interface pragmas</entry>
1006               <entry>dynamic</entry>
1007               <entry><option>-fno-omit-interface-pragmas</option></entry>
1008             </row>
1009
1010             <row>
1011               <entry><option>-fmax-worker-args</option></entry>
1012               <entry>If a worker has that many arguments, none will be
1013                 unpacked anymore (default: 10)</entry>
1014               <entry>static</entry>
1015               <entry>-</entry>
1016             </row>
1017
1018             <row>
1019               <entry><option>-fmax-simplifier-iterations</option></entry>
1020               <entry>Set the max iterations for the simplifier</entry>
1021               <entry>dynamic</entry>
1022               <entry>-</entry>
1023             </row>
1024
1025             <row>
1026               <entry><option>-fno-state-hack</option></entry>
1027               <entry>Turn off the "state hack" whereby any lambda with a real-world state token
1028               as argument is considered to be single-entry.  Hence OK to inline things inside it.</entry>
1029               <entry>static</entry>
1030               <entry>-</entry>
1031             </row>
1032
1033             <row>
1034               <entry><option>-fcse</option></entry>
1035               <entry>Turn on common sub-expression elimination. Implied by <option>-O</option>.</entry>
1036               <entry>dynamic</entry>
1037               <entry>-fno-cse</entry>
1038             </row>
1039
1040             <row>
1041               <entry><option>-ffull-laziness</option></entry>
1042               <entry>Turn on full laziness (floating bindings outwards). Implied by <option>-O</option>.</entry>
1043               <entry>dynamic</entry>
1044               <entry>-fno-full-laziness</entry>
1045             </row>
1046
1047             <row>
1048               <entry><option>-frewrite-rules</option></entry>
1049               <entry>Switch on all rewrite rules (including rules
1050               generated by automatic specialisation of overloaded functions).
1051               Implied by <option>-O</option>. </entry>
1052               <entry>dynamic</entry>
1053               <entry><option>-fno-rewrite-rules</option></entry>
1054             </row>
1055
1056             <row>
1057               <entry><option>-fstrictness</option></entry>
1058               <entry>Turn on strictness analysis. Implied by <option>-O</option>.</entry>
1059               <entry>dynamic</entry>
1060               <entry>-fno-strictness</entry>
1061             </row>
1062
1063             <row>
1064               <entry><option>-fspec-constr</option></entry>
1065               <entry>Turn on the SpecConstr transformation. Implied by <option>-O2</option>.</entry>
1066               <entry>dynamic</entry>
1067               <entry>-fno-spec-constr</entry>
1068             </row>
1069
1070             <row>
1071               <entry><option>-fliberate-case</option></entry>
1072               <entry>Turn on the liberate-case transformation. Implied by <option>-O2</option>.</entry>
1073               <entry>dynamic</entry>
1074               <entry>-fno-liberate-case</entry>
1075             </row>
1076
1077             <row>
1078               <entry><option>-fspec-threshold</option>=<replaceable>n</replaceable></entry>
1079               <entry>Set the size threshold for function specialisation to <replaceable>n</replaceable>, for both
1080                 the liberate-case and SpecConstr transformations (default: 200)</entry>
1081               <entry>static</entry>
1082               <entry><option>-</option></entry>
1083             </row>
1084
1085             <row>
1086               <entry><option>-funbox-strict-fields</option></entry>
1087               <entry>Flatten strict constructor fields</entry>
1088               <entry>dynamic</entry>
1089               <entry><option>-fno-unbox-strict-fields</option></entry>
1090             </row>
1091
1092             <row>
1093               <entry><option>-funfolding-creation-threshold</option></entry>
1094               <entry>Tweak unfolding settings</entry>
1095               <entry>static</entry>
1096               <entry><option>-fno-unfolding-creation-threshold</option></entry>
1097             </row>
1098
1099             <row>
1100               <entry><option>-funfolding-fun-discount</option></entry>
1101               <entry>Tweak unfolding settings</entry>
1102               <entry>static</entry>
1103               <entry><option>-fno-unfolding-fun-discount</option></entry>
1104             </row>
1105
1106             <row>
1107               <entry><option>-funfolding-keeness-factor</option></entry>
1108               <entry>Tweak unfolding settings</entry>
1109               <entry>static</entry>
1110               <entry><option>-fno-unfolding-keeness-factor</option></entry>
1111             </row>
1112
1113             <row>
1114               <entry><option>-funfolding-update-in-place</option></entry>
1115               <entry>Tweak unfolding settings</entry>
1116               <entry>static</entry>
1117               <entry><option>-fno-unfolding-update-in-place</option></entry>
1118             </row>
1119
1120             <row>
1121               <entry><option>-funfolding-use-threshold</option></entry>
1122               <entry>Tweak unfolding settings</entry>
1123               <entry>static</entry>
1124               <entry><option>-fno-unfolding-use-threshold</option></entry>
1125             </row>
1126
1127             <row>
1128               <entry><option>-fno-pre-inlining</option></entry>
1129               <entry>Turn off pre-inlining</entry>
1130               <entry>static</entry>
1131               <entry>-</entry>
1132             </row>
1133           </tbody>
1134         </tgroup>
1135       </informaltable>
1136     </sect2>
1137
1138     <sect2>
1139       <title>Profiling options</title>
1140
1141       <para><xref linkend="profiling"/></para>
1142
1143       <informaltable>
1144         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1145           <thead>
1146             <row>
1147               <entry>Flag</entry>
1148               <entry>Description</entry>
1149               <entry>Static/Dynamic</entry>
1150               <entry>Reverse</entry>
1151             </row>
1152           </thead>
1153           <tbody>
1154             <row>
1155               <entry><option>-auto</option></entry>
1156               <entry>Auto-add <literal>_scc_</literal>s to all
1157               exported functions</entry>
1158               <entry>static</entry>
1159               <entry><option>-no-auto</option></entry>
1160             </row>
1161             <row>
1162               <entry><option>-auto-all</option></entry>
1163               <entry>Auto-add <literal>_scc_</literal>s to all
1164               top-level functions</entry>
1165               <entry>static</entry>
1166               <entry><option>-no-auto-all</option></entry>
1167             </row>
1168             <row>
1169               <entry><option>-caf-all</option></entry>
1170               <entry>Auto-add <literal>_scc_</literal>s to all CAFs</entry>
1171               <entry>static</entry>
1172               <entry><option>-no-caf-all</option></entry>
1173             </row>
1174             <row>
1175               <entry><option>-prof</option></entry>
1176               <entry>Turn on profiling</entry>
1177               <entry>static</entry>
1178               <entry>-</entry>
1179             </row>
1180             <row>
1181               <entry><option>-ticky</option></entry>
1182               <entry>Turn on ticky-ticky profiling</entry>
1183               <entry>static</entry>
1184               <entry>-</entry>
1185             </row>
1186           </tbody>
1187         </tgroup>
1188       </informaltable>
1189     </sect2>
1190
1191     <sect2>
1192       <title>Program coverage options</title>
1193
1194       <para><xref linkend="hpc"/></para>
1195
1196       <informaltable>
1197         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1198           <thead>
1199             <row>
1200               <entry>Flag</entry>
1201               <entry>Description</entry>
1202               <entry>Static/Dynamic</entry>
1203               <entry>Reverse</entry>
1204             </row>
1205           </thead>
1206           <tbody>
1207             <row>
1208               <entry><option>-fhpc</option></entry>
1209               <entry>Turn on Haskell program coverage instrumentation</entry>
1210               <entry>static</entry>
1211               <entry><option>-</option></entry>
1212             </row>
1213             <row>
1214               <entry><option>-hpcdir dir</option></entry>
1215               <entry>Directory to deposit .mix files during compilation</entry>
1216               <entry>dynamic</entry>
1217               <entry><option>-</option></entry>
1218             </row>
1219           </tbody>
1220         </tgroup>
1221       </informaltable>
1222     </sect2>
1223
1224     <sect2>
1225       <title>Haskell pre-processor options</title>
1226
1227       <para><xref linkend="pre-processor"/></para>
1228
1229       <informaltable>
1230         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1231           <thead>
1232             <row>
1233               <entry>Flag</entry>
1234               <entry>Description</entry>
1235               <entry>Static/Dynamic</entry>
1236               <entry>Reverse</entry>
1237             </row>
1238           </thead>
1239           <tbody>
1240             <row>
1241               <entry><option>-F</option></entry>
1242               <entry>
1243                   Enable the use of a pre-processor
1244                   (set with <option>-pgmF</option>)
1245               </entry>
1246               <entry>dynamic</entry>
1247               <entry>-</entry>
1248             </row>
1249           </tbody>
1250         </tgroup>
1251       </informaltable>
1252     </sect2>
1253
1254     <sect2>
1255       <title>C pre-processor options</title>
1256
1257       <para><xref linkend="c-pre-processor"/></para>
1258
1259       <informaltable>
1260         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1261           <thead>
1262             <row>
1263               <entry>Flag</entry>
1264               <entry>Description</entry>
1265               <entry>Static/Dynamic</entry>
1266               <entry>Reverse</entry>
1267             </row>
1268           </thead>
1269           <tbody>
1270             <row>
1271               <entry><option>-cpp</option></entry>
1272               <entry>Run the C pre-processor on Haskell source files</entry>
1273               <entry>dynamic</entry>
1274               <entry>-</entry>
1275             </row>
1276             <row>
1277               <entry><option>-D</option><replaceable>symbol</replaceable><optional>=<replaceable>value</replaceable></optional></entry>
1278               <entry>Define a symbol in the C pre-processor</entry>
1279               <entry>dynamic</entry>
1280               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1281             </row>
1282             <row>
1283               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1284               <entry>Undefine a symbol in the C pre-processor</entry>
1285               <entry>dynamic</entry>
1286               <entry>-</entry>
1287             </row>
1288             <row>
1289               <entry><option>-I</option><replaceable>dir</replaceable></entry>
1290               <entry>Add <replaceable>dir</replaceable> to the
1291               directory search list for <literal>#include</literal> files</entry>
1292               <entry>dynamic</entry>
1293               <entry>-</entry>
1294             </row>
1295           </tbody>
1296         </tgroup>
1297       </informaltable>
1298     </sect2>
1299
1300     <sect2>
1301       <title>C compiler options</title>
1302
1303       <para><xref linkend="options-C-compiler"/></para>
1304       <informaltable>
1305         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1306           <thead>
1307             <row>
1308               <entry>Flag</entry>
1309               <entry>Description</entry>
1310               <entry>Static/Dynamic</entry>
1311               <entry>Reverse</entry>
1312             </row>
1313           </thead>
1314           <tbody>
1315             <row>
1316               <entry><option>-#include</option> <replaceable>file</replaceable></entry>
1317               <entry>Include <replaceable>file</replaceable> when
1318               compiling the <filename>.hc</filename> file</entry>
1319               <entry>dynamic</entry>
1320               <entry>-</entry>
1321             </row>
1322           </tbody>
1323         </tgroup>
1324       </informaltable>
1325     </sect2>
1326
1327     <sect2>
1328       <title>Code generation options</title>
1329
1330       <para><xref linkend="options-codegen"/></para>
1331
1332       <informaltable>
1333         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1334           <thead>
1335             <row>
1336               <entry>Flag</entry>
1337               <entry>Description</entry>
1338               <entry>Static/Dynamic</entry>
1339               <entry>Reverse</entry>
1340             </row>
1341           </thead>
1342           <tbody>
1343             <row>
1344               <entry><option>-fasm</option></entry>
1345               <entry>Use the native code generator</entry>
1346               <entry>dynamic</entry>
1347               <entry>-fvia-C</entry>
1348             </row>
1349             <row>
1350               <entry><option>-fvia-C</option></entry>
1351               <entry>Compile via C</entry>
1352               <entry>dynamic</entry>
1353               <entry>-fasm</entry>
1354             </row>
1355             <row>
1356               <entry><option>-fno-code</option></entry>
1357               <entry>Omit code generation</entry>
1358               <entry>dynamic</entry>
1359               <entry>-</entry>
1360             </row>
1361             <row>
1362               <entry><option>-fbyte-code</option></entry>
1363               <entry>Generate byte-code</entry>
1364               <entry>dynamic</entry>
1365               <entry>-</entry>
1366             </row>
1367             <row>
1368               <entry><option>-fobject-code</option></entry>
1369               <entry>Generate object code</entry>
1370               <entry>dynamic</entry>
1371               <entry>-</entry>
1372             </row>
1373           </tbody>
1374         </tgroup>
1375       </informaltable>
1376     </sect2>
1377
1378     <sect2>
1379       <title>Linking options</title>
1380
1381       <para><xref linkend="options-linker"/></para>
1382
1383       <informaltable>
1384         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1385           <thead>
1386             <row>
1387               <entry>Flag</entry>
1388               <entry>Description</entry>
1389               <entry>Static/Dynamic</entry>
1390               <entry>Reverse</entry>
1391             </row>
1392           </thead>
1393           <tbody>
1394             <row>
1395               <entry><option>-fPIC</option></entry>
1396               <entry>Generate position-independent code (where available)</entry>
1397               <entry>static</entry>
1398               <entry>-</entry>
1399             </row>
1400             <row>
1401               <entry><option>-dynamic</option></entry>
1402               <entry>Use dynamic Haskell libraries (if available)</entry>
1403               <entry>static</entry>
1404               <entry>-</entry>
1405             </row>
1406             <row>
1407               <entry><option>-framework</option> <replaceable>name</replaceable></entry>
1408               <entry>On Darwin/MacOS X only, link in the framework <replaceable>name</replaceable>.
1409                 This option corresponds to the <option>-framework</option> option for Apple's Linker.</entry>
1410               <entry>dynamic</entry>
1411               <entry>-</entry>
1412             </row>
1413             <row>
1414               <entry><option>-framework-path</option> <replaceable>name</replaceable></entry>
1415               <entry>On Darwin/MacOS X only, add <replaceable>dir</replaceable> to the list of
1416                 directories searched for frameworks.
1417                 This option corresponds to the <option>-F</option> option for Apple's Linker.</entry>
1418               <entry>dynamic</entry>
1419               <entry>-</entry>
1420             </row>
1421             <row>
1422               <entry><option>-l</option><replaceable>lib</replaceable></entry>
1423               <entry>Link in library <replaceable>lib</replaceable></entry>
1424               <entry>dynamic</entry>
1425               <entry>-</entry>
1426             </row>
1427             <row>
1428               <entry><option>-L</option><replaceable>dir</replaceable></entry>
1429               <entry>Add <replaceable>dir</replaceable> to the list of
1430               directories searched for libraries</entry>
1431               <entry>dynamic</entry>
1432               <entry>-</entry>
1433             </row>
1434             <row>
1435               <entry><option>-main-is</option></entry>
1436               <entry>Set main module and function</entry>
1437               <entry>dynamic</entry>
1438               <entry>-</entry>
1439             </row>
1440             <row>
1441               <entry><option>--mk-dll</option></entry>
1442               <entry>DLL-creation mode (Windows only)</entry>
1443               <entry>dynamic</entry>
1444               <entry>-</entry>
1445             </row>
1446             <row>
1447               <entry><option>-no-hs-main</option></entry>
1448               <entry>Don't assume this program contains <literal>main</literal></entry>
1449               <entry>dynamic</entry>
1450               <entry>-</entry>
1451             </row>
1452             <row>
1453               <entry><option>-no-link</option></entry>
1454               <entry>Omit linking</entry>
1455               <entry>dynamic</entry>
1456               <entry>-</entry>
1457             </row>
1458             <row>
1459               <entry><option>-split-objs</option></entry>
1460               <entry>Split objects (for libraries)</entry>
1461               <entry>dynamic</entry>
1462               <entry>-</entry>
1463             </row>
1464             <row>
1465               <entry><option>-static</option></entry>
1466               <entry>Use static Haskell libraries</entry>
1467               <entry>static</entry>
1468               <entry>-</entry>
1469             </row>
1470             <row>
1471               <entry><option>-threaded</option></entry>
1472               <entry>Use the threaded runtime</entry>
1473               <entry>static</entry>
1474               <entry>-</entry>
1475             </row>
1476             <row>
1477               <entry><option>-debug</option></entry>
1478               <entry>Use the debugging runtime</entry>
1479               <entry>static</entry>
1480               <entry>-</entry>
1481             </row>
1482           </tbody>
1483         </tgroup>
1484       </informaltable>
1485     </sect2>
1486
1487     <sect2>
1488       <title>Replacing phases</title>
1489
1490       <para><xref linkend="replacing-phases"/></para>
1491
1492       <informaltable>
1493         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1494           <thead>
1495             <row>
1496               <entry>Flag</entry>
1497               <entry>Description</entry>
1498               <entry>Static/Dynamic</entry>
1499               <entry>Reverse</entry>
1500             </row>
1501           </thead>
1502           <tbody>
1503             <row>
1504               <entry><option>-pgmL</option> <replaceable>cmd</replaceable></entry>
1505               <entry>Use <replaceable>cmd</replaceable> as the literate pre-processor</entry>
1506               <entry>dynamic</entry>
1507               <entry>-</entry>
1508             </row>
1509             <row>
1510               <entry><option>-pgmP</option> <replaceable>cmd</replaceable></entry>
1511               <entry>Use <replaceable>cmd</replaceable> as the C
1512               pre-processor (with <option>-cpp</option> only)</entry>
1513               <entry>dynamic</entry>
1514               <entry>-</entry>
1515             </row>
1516             <row>
1517               <entry><option>-pgmc</option> <replaceable>cmd</replaceable></entry>
1518               <entry>Use <replaceable>cmd</replaceable> as the C compiler</entry>
1519               <entry>dynamic</entry>
1520               <entry>-</entry>
1521             </row>
1522             <row>
1523               <entry><option>-pgmm</option> <replaceable>cmd</replaceable></entry>
1524               <entry>Use <replaceable>cmd</replaceable> as the mangler</entry>
1525               <entry>dynamic</entry>
1526               <entry>-</entry>
1527             </row>
1528             <row>
1529               <entry><option>-pgms</option> <replaceable>cmd</replaceable></entry>
1530               <entry>Use <replaceable>cmd</replaceable> as the splitter</entry>
1531               <entry>dynamic</entry>
1532               <entry>-</entry>
1533             </row>
1534             <row>
1535               <entry><option>-pgma</option> <replaceable>cmd</replaceable></entry>
1536               <entry>Use <replaceable>cmd</replaceable> as the assembler</entry>
1537               <entry>dynamic</entry>
1538               <entry>-</entry>
1539             </row>
1540             <row>
1541               <entry><option>-pgml</option> <replaceable>cmd</replaceable></entry>
1542               <entry>Use <replaceable>cmd</replaceable> as the linker</entry>
1543               <entry>dynamic</entry>
1544               <entry>-</entry>
1545             </row>
1546             <row>
1547               <entry><option>-pgmdll</option> <replaceable>cmd</replaceable></entry>
1548               <entry>Use <replaceable>cmd</replaceable> as the DLL generator</entry>
1549               <entry>dynamic</entry>
1550               <entry>-</entry>
1551             </row>
1552             <row>
1553               <entry><option>-pgmF</option> <replaceable>cmd</replaceable></entry>
1554               <entry>Use <replaceable>cmd</replaceable> as the pre-processor
1555               (with <option>-F</option> only)</entry>
1556               <entry>dynamic</entry>
1557               <entry>-</entry>
1558             </row>
1559           </tbody>
1560         </tgroup>
1561       </informaltable>
1562       <indexterm><primary><option>-pgmL</option></primary></indexterm>
1563       <indexterm><primary><option>-pgmP</option></primary></indexterm>
1564       <indexterm><primary><option>-pgmc</option></primary></indexterm>
1565       <indexterm><primary><option>-pgma</option></primary></indexterm>
1566       <indexterm><primary><option>-pgml</option></primary></indexterm>
1567       <indexterm><primary><option>-pgmdll</option></primary></indexterm>
1568       <indexterm><primary><option>-pgmF</option></primary></indexterm>
1569
1570     </sect2>
1571
1572     <sect2>
1573       <title>Forcing options to particular phases</title>
1574
1575       <para><xref linkend="forcing-options-through"/></para>
1576
1577       <informaltable>
1578         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1579           <thead>
1580             <row>
1581               <entry>Flag</entry>
1582               <entry>Description</entry>
1583               <entry>Static/Dynamic</entry>
1584               <entry>Reverse</entry>
1585             </row>
1586           </thead>
1587           <tbody>
1588             <row>
1589               <entry><option>-optL</option> <replaceable>option</replaceable></entry>
1590               <entry>pass <replaceable>option</replaceable> to the literate pre-processor</entry>
1591               <entry>dynamic</entry>
1592               <entry>-</entry>
1593             </row>
1594             <row>
1595               <entry><option>-optP</option> <replaceable>option</replaceable></entry>
1596               <entry>pass <replaceable>option</replaceable> to cpp (with
1597               <option>-cpp</option> only)</entry>
1598               <entry>dynamic</entry>
1599               <entry>-</entry>
1600             </row>
1601             <row>
1602               <entry><option>-optF</option> <replaceable>option</replaceable></entry>
1603               <entry>pass <replaceable>option</replaceable> to the
1604               custom pre-processor</entry>
1605               <entry>dynamic</entry>
1606               <entry>-</entry>
1607             </row>
1608             <row>
1609               <entry><option>-optc</option> <replaceable>option</replaceable></entry>
1610               <entry>pass <replaceable>option</replaceable> to the C compiler</entry>
1611               <entry>dynamic</entry>
1612               <entry>-</entry>
1613             </row>
1614             <row>
1615               <entry><option>-optm</option> <replaceable>option</replaceable></entry>
1616               <entry>pass <replaceable>option</replaceable> to the mangler</entry>
1617               <entry>dynamic</entry>
1618               <entry>-</entry>
1619             </row>
1620             <row>
1621               <entry><option>-opta</option> <replaceable>option</replaceable></entry>
1622               <entry>pass <replaceable>option</replaceable> to the assembler</entry>
1623               <entry>dynamic</entry>
1624               <entry>-</entry>
1625             </row>
1626             <row>
1627               <entry><option>-optl</option> <replaceable>option</replaceable></entry>
1628               <entry>pass <replaceable>option</replaceable> to the linker</entry>
1629               <entry>dynamic</entry>
1630               <entry>-</entry>
1631             </row>
1632             <row>
1633               <entry><option>-optdll</option> <replaceable>option</replaceable></entry>
1634               <entry>pass <replaceable>option</replaceable> to the DLL generator</entry>
1635               <entry>dynamic</entry>
1636               <entry>-</entry>
1637             </row>
1638             <row>
1639               <entry><option>-optdep</option> <replaceable>option</replaceable></entry>
1640               <entry>pass <replaceable>option</replaceable> to the dependency generator</entry>
1641               <entry>dynamic</entry>
1642               <entry>-</entry>
1643             </row>
1644           </tbody>
1645         </tgroup>
1646       </informaltable>
1647     </sect2>
1648
1649     <sect2>
1650       <title>Platform-specific options</title>
1651
1652       <para><xref linkend="options-platform"/></para>
1653
1654       <informaltable>
1655         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1656           <thead>
1657             <row>
1658               <entry>Flag</entry>
1659               <entry>Description</entry>
1660               <entry>Static/Dynamic</entry>
1661               <entry>Reverse</entry>
1662             </row>
1663           </thead>
1664           <tbody>
1665             <row>
1666               <entry><option>-monly-[432]-regs</option></entry>
1667               <entry>(x86 only) give some registers back to the C compiler</entry>
1668               <entry>dynamic</entry>
1669               <entry>-</entry>
1670             </row>
1671           </tbody>
1672         </tgroup>
1673       </informaltable>
1674     </sect2>
1675
1676
1677     <sect2>
1678       <title>External core file options</title>
1679
1680       <para><xref linkend="ext-core"/></para>
1681
1682       <informaltable>
1683         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1684           <thead>
1685             <row>
1686               <entry>Flag</entry>
1687               <entry>Description</entry>
1688               <entry>Static/Dynamic</entry>
1689               <entry>Reverse</entry>
1690             </row>
1691           </thead>
1692           <tbody>
1693             <row>
1694               <entry><option>-fext-core</option></entry>
1695               <entry>Generate <filename>.hcr</filename> external Core files</entry>
1696               <entry>static</entry>
1697               <entry>-</entry>
1698             </row>
1699           </tbody>
1700         </tgroup>
1701       </informaltable>
1702     </sect2>
1703
1704
1705     <sect2>
1706       <title>Compiler debugging options</title>
1707
1708       <para><xref linkend="options-debugging"/></para>
1709
1710       <informaltable>
1711         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1712           <thead>
1713             <row>
1714               <entry>Flag</entry>
1715               <entry>Description</entry>
1716               <entry>Static/Dynamic</entry>
1717               <entry>Reverse</entry>
1718             </row>
1719           </thead>
1720           <tbody>
1721             <row>
1722               <entry><option>-dcore-lint</option></entry>
1723               <entry>Turn on internal sanity checking</entry>
1724               <entry>dynamic</entry>
1725               <entry>-</entry>
1726             </row>
1727             <row>
1728               <entry><option>-ddump-asm</option></entry>
1729               <entry>Dump assembly</entry>
1730               <entry>dynamic</entry>
1731               <entry>-</entry>
1732             </row>
1733             <row>
1734               <entry><option>-ddump-bcos</option></entry>
1735               <entry>Dump interpreter byte code</entry>
1736               <entry>dynamic</entry>
1737               <entry>-</entry>
1738             </row>
1739             <row>
1740               <entry><option>-ddump-cmm</option></entry>
1741               <entry>Dump C-- output</entry>
1742               <entry>dynamic</entry>
1743               <entry>-</entry>
1744             </row>
1745             <row>
1746               <entry><option>-ddump-cpranal</option></entry>
1747               <entry>Dump output from CPR analysis</entry>
1748               <entry>dynamic</entry>
1749               <entry>-</entry>
1750             </row>
1751             <row>
1752               <entry><option>-ddump-cse</option></entry>
1753               <entry>Dump CSE output</entry>
1754               <entry>dynamic</entry>
1755               <entry>-</entry>
1756             </row>
1757             <row>
1758               <entry><option>-ddump-deriv</option></entry>
1759               <entry>Dump deriving output</entry>
1760               <entry>dynamic</entry>
1761               <entry>-</entry>
1762             </row>
1763             <row>
1764               <entry><option>-ddump-ds</option></entry>
1765               <entry>Dump desugarer output</entry>
1766               <entry>dynamic</entry>
1767               <entry>-</entry>
1768             </row>
1769             <row>
1770               <entry><option>-ddump-flatC</option></entry>
1771               <entry>Dump &ldquo;flat&rdquo; C</entry>
1772               <entry>dynamic</entry>
1773               <entry>-</entry>
1774             </row>
1775             <row>
1776               <entry><option>-ddump-foreign</option></entry>
1777               <entry>Dump <literal>foreign export</literal> stubs</entry>
1778               <entry>dynamic</entry>
1779               <entry>-</entry>
1780             </row>
1781             <row>
1782               <entry><option>-ddump-hpc</option></entry>
1783               <entry>Dump after intrumentation for program coverage</entry>
1784               <entry>dynamic</entry>
1785               <entry>-</entry>
1786             </row>
1787             <row>
1788               <entry><option>-ddump-inlinings</option></entry>
1789               <entry>Dump inlining info</entry>
1790               <entry>dynamic</entry>
1791               <entry>-</entry>
1792             </row>
1793             <row>
1794               <entry><option>-ddump-occur-anal</option></entry>
1795               <entry>Dump occurrence analysis output</entry>
1796               <entry>dynamic</entry>
1797               <entry>-</entry>
1798             </row>
1799             <row>
1800               <entry><option>-ddump-opt-cmm</option></entry>
1801               <entry>Dump the results of C-- to C-- optimising passes</entry>
1802               <entry>dynamic</entry>
1803               <entry>-</entry>
1804             </row>
1805             <row>
1806               <entry><option>-ddump-parsed</option></entry>
1807               <entry>Dump parse tree</entry>
1808               <entry>dynamic</entry>
1809               <entry>-</entry>
1810             </row>
1811             <row>
1812               <entry><option>-ddump-prep</option></entry>
1813               <entry>Dump prepared core</entry>
1814               <entry>dynamic</entry>
1815               <entry>-</entry>
1816             </row>
1817             <row>
1818               <entry><option>-ddump-rn</option></entry>
1819               <entry>Dump renamer output</entry>
1820               <entry>dynamic</entry>
1821               <entry>-</entry>
1822             </row>
1823             <row>
1824               <entry><option>-ddump-rules</option></entry>
1825               <entry>Dump rules</entry>
1826               <entry>dynamic</entry>
1827               <entry>-</entry>
1828             </row>
1829             <row>
1830               <entry><option>-ddump-simpl</option></entry>
1831               <entry>Dump final simplifier output</entry>
1832               <entry>dynamic</entry>
1833               <entry>-</entry>
1834             </row>
1835             <row>
1836               <entry><option>-ddump-simpl-iterations</option></entry>
1837               <entry>Dump output from each simplifier iteration</entry>
1838               <entry>dynamic</entry>
1839               <entry>-</entry>
1840             </row>
1841             <row>
1842               <entry><option>-ddump-spec</option></entry>
1843               <entry>Dump specialiser output</entry>
1844               <entry>dynamic</entry>
1845               <entry>-</entry>
1846             </row>
1847             <row>
1848               <entry><option>-ddump-splices</option></entry>
1849               <entry>Dump TH splided expressions, and what they evaluate to</entry>
1850               <entry>dynamic</entry>
1851               <entry>-</entry>
1852             </row>
1853             <row>
1854               <entry><option>-ddump-stg</option></entry>
1855               <entry>Dump final STG</entry>
1856               <entry>dynamic</entry>
1857               <entry>-</entry>
1858             </row>
1859             <row>
1860               <entry><option>-ddump-stranal</option></entry>
1861               <entry>Dump strictness analyser output</entry>
1862               <entry>dynamic</entry>
1863               <entry>-</entry>
1864             </row>
1865             <row>
1866               <entry><option>-ddump-tc</option></entry>
1867               <entry>Dump typechecker output</entry>
1868               <entry>dynamic</entry>
1869               <entry>-</entry>
1870             </row>
1871             <row>
1872               <entry><option>-ddump-types</option></entry>
1873               <entry>Dump type signatures</entry>
1874               <entry>dynamic</entry>
1875               <entry>-</entry>
1876             </row>
1877             <row>
1878               <entry><option>-ddump-worker-wrapper</option></entry>
1879               <entry>Dump worker-wrapper output</entry>
1880               <entry>dynamic</entry>
1881               <entry>-</entry>
1882             </row>
1883             <row>
1884               <entry><option>-ddump-if-trace</option></entry>
1885               <entry>Trace interface files</entry>
1886               <entry>dynamic</entry>
1887               <entry>-</entry>
1888             </row>
1889             <row>
1890               <entry><option>-ddump-tc-trace</option></entry>
1891               <entry>Trace typechecker</entry>
1892               <entry>dynamic</entry>
1893               <entry>-</entry>
1894             </row>
1895             <row>
1896               <entry><option>-ddump-rn-trace</option></entry>
1897               <entry>Trace renamer</entry>
1898               <entry>dynamic</entry>
1899               <entry>-</entry>
1900             </row>
1901             <row>
1902               <entry><option>-ddump-rn-stats</option></entry>
1903               <entry>Renamer stats</entry>
1904               <entry>dynamic</entry>
1905               <entry>-</entry>
1906             </row>
1907             <row>
1908               <entry><option>-ddump-simpl-stats</option></entry>
1909               <entry>Dump simplifier stats</entry>
1910               <entry>dynamic</entry>
1911               <entry>-</entry>
1912             </row>
1913             <row>
1914               <entry><option>-dppr-debug</option></entry>
1915               <entry>Turn on debug printing (more verbose)</entry>
1916               <entry>static</entry>
1917               <entry>-</entry>
1918             </row>
1919             <row>
1920               <entry><option>-dppr-noprags</option></entry>
1921               <entry>Don't output pragma info in dumps</entry>
1922               <entry>static</entry>
1923               <entry>-</entry>
1924             </row>
1925             <row>
1926               <entry><option>-dppr-user-length</option></entry>
1927               <entry>Set the depth for printing expressions in error msgs</entry>
1928               <entry>static</entry>
1929               <entry>-</entry>
1930             </row>
1931             <row>
1932               <entry><option>-dsource-stats</option></entry>
1933               <entry>Dump haskell source stats</entry>
1934               <entry>dynamic</entry>
1935               <entry>-</entry>
1936             </row>
1937             <row>
1938               <entry><option>-dcmm-lint</option></entry>
1939               <entry>C-- pass sanity checking</entry>
1940               <entry>dynamic</entry>
1941               <entry>-</entry>
1942             </row>
1943             <row>
1944               <entry><option>-dstg-lint</option></entry>
1945               <entry>STG pass sanity checking</entry>
1946               <entry>dynamic</entry>
1947               <entry>-</entry>
1948             </row>
1949             <row>
1950               <entry><option>-dstg-stats</option></entry>
1951               <entry>Dump STG stats</entry>
1952               <entry>dynamic</entry>
1953               <entry>-</entry>
1954             </row>
1955             <row>
1956               <entry><option>-dverbose-core2core</option></entry>
1957               <entry>Show output from each core-to-core pass</entry>
1958               <entry>dynamic</entry>
1959               <entry>-</entry>
1960             </row>
1961             <row>
1962               <entry><option>-dverbose-stg2stg</option></entry>
1963               <entry>Show output from each STG-to-STG pass</entry>
1964               <entry>dynamic</entry>
1965               <entry>-</entry>
1966             </row>
1967             <row>
1968               <entry><option>-dshow-passes</option></entry>
1969               <entry>Print out each pass name as it happens</entry>
1970               <entry>dynamic</entry>
1971               <entry>-</entry>
1972             </row>
1973             <row>
1974               <entry><option>-dfaststring-stats</option></entry>
1975               <entry>Show statistics for fast string usage when finished</entry>
1976               <entry>dynamic</entry>
1977               <entry>-</entry>
1978             </row>
1979             <row>
1980               <entry><option>-unreg</option></entry>
1981               <entry>Enable unregisterised compilation</entry>
1982               <entry>static</entry>
1983               <entry>-</entry>
1984             </row>
1985           </tbody>
1986         </tgroup>
1987       </informaltable>
1988     </sect2>
1989
1990     <sect2>
1991       <title>Misc compiler options</title>
1992
1993       <informaltable>
1994         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1995           <thead>
1996             <row>
1997               <entry>Flag</entry>
1998               <entry>Description</entry>
1999               <entry>Static/Dynamic</entry>
2000               <entry>Reverse</entry>
2001             </row>
2002           </thead>
2003           <tbody>
2004             <row>
2005               <entry><option>-fno-hi-version-check</option></entry>
2006               <entry>Don't complain about <literal>.hi</literal> file mismatches</entry>
2007               <entry>static</entry>
2008               <entry>-</entry>
2009             </row>
2010             <row>
2011               <entry><option>-dno-black-holing</option></entry>
2012               <entry>Turn off black holing (probably doesn't work)</entry>
2013               <entry>static</entry>
2014               <entry>-</entry>
2015             </row>
2016             <row>
2017               <entry><option>-fno-method-sharing</option></entry>
2018               <entry>Don't share specialisations of overloaded functions</entry>
2019               <entry>static</entry>
2020               <entry>-</entry>
2021             </row>
2022             <row>
2023               <entry><option>-fhistory-size</option></entry>
2024               <entry>Set simplification history size</entry>
2025               <entry>static</entry>
2026               <entry>-</entry>
2027             </row>
2028             <row>
2029               <entry><option>-funregisterised</option></entry>
2030               <entry>Unregisterised compilation (use <option>-unreg</option> instead)</entry>
2031               <entry>static</entry>
2032               <entry>-</entry>
2033             </row>
2034             <row>
2035               <entry><option>-fno-asm-mangling</option></entry>
2036               <entry>Turn off assembly mangling (use <option>-unreg</option> instead)</entry>
2037               <entry>dynamic</entry>
2038               <entry>-</entry>
2039             </row>
2040           </tbody>
2041         </tgroup>
2042       </informaltable>
2043     </sect2>
2044   </sect1>
2045
2046
2047 <!--
2048 Still to document:
2049
2050 Misc:
2051   ,  ( "H"                 , HasArg (setHeapSize . fromIntegral . decodeSize) )
2052
2053   -Bdir
2054 -->
2055
2056 <!-- Emacs stuff:
2057      ;;; Local Variables: ***
2058      ;;; mode: xml ***
2059      ;;; sgml-parent-document: ("users_guide.xml" "book" "chapter") ***
2060      ;;; End: ***
2061  -->