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