ghc/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="3" 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>static</entry>
  30               <entry>-</entry>
  31             </row>
  32             <row>
  33               <entry><option>-help</option></entry>
  34               <entry>help</entry>
  35               <entry>static</entry>
  36               <entry>-</entry>
  37             </row>
  38             <row>
  39               <entry><option>-v</option></entry>
  40               <entry>verbose mode (equivalent to <option>-v3</option>)</entry>
  41               <entry>dynamic</entry>
  42               <entry>-</entry>
  43             </row>
  44             <row>
  45               <entry><option>-v</option><replaceable>n</replaceable></entry>
  46               <entry>set verbosity level</entry>
  47               <entry>dynamic</entry>
  48               <entry>-</entry>
  49             </row>
  50             <row>
  51               <entry><option>-V</option></entry>
  52               <entry>display GHC version</entry>
  53               <entry>static</entry>
  54               <entry>-</entry>
  55             </row>
  56             <row>
  57               <entry><option>&ndash;&ndash;version</option></entry>
  58               <entry>display GHC version</entry>
  59               <entry>static</entry>
  60               <entry>-</entry>
  61             </row>
  62             <row>
  63               <entry><option>&ndash;&ndash;numeric-version</option></entry>
  64               <entry>display GHC version (numeric only)</entry>
  65               <entry>static</entry>
  66               <entry>-</entry>
  67             </row>
  68             <row>
  69               <entry><option>&ndash;&ndash;print-libdir</option></entry>
  70               <entry>display GHC library directory</entry>
  71               <entry>static</entry>
  72               <entry>-</entry>
  73             </row>
  74             <row>
  75               <entry><option>-ferror-spans</option></entry>
  76               <entry>output full span in error messages</entry>
  77               <entry>static</entry>
  78               <entry>-</entry>
  79             </row>
  80           </tbody>
  81         </tgroup>
  82       </informaltable>
  83
  84     </sect2>
  85     <sect2>
  86       <title>Which phases to run</title>
  87
  88       <para><xref linkend="options-order"/></para>
  89
  90       <informaltable>
  91         <tgroup cols="3" align="left" colsep="1" rowsep="1">
  92           <thead>
  93             <row>
  94               <entry>Flag</entry>
  95               <entry>Description</entry>
  96               <entry>Static/Dynamic</entry>
  97               <entry>Reverse</entry>
  98             </row>
  99           </thead>
 100           <tbody>
 101             <row>
 102               <entry><option>-E</option></entry>
 103               <entry>Stop after preprocessing (<literal>.hspp</literal> file)</entry>
 104               <entry>static</entry>
 105               <entry>-</entry>
 106             </row>
 107             <row>
 108               <entry><option>-C</option></entry>
 109               <entry>Stop after generating C (<literal>.hc</literal> file)</entry>
 110               <entry>static</entry>
 111               <entry>-</entry>
 112             </row>
 113             <row>
 114               <entry><option>-S</option></entry>
 115               <entry>Stop after generating assembly (<literal>.s</literal> file)</entry>
 116               <entry>static</entry>
 117               <entry>-</entry>
 118             </row>
 119             <row>
 120               <entry><option>-c</option></entry>
 121               <entry>Stop after compiling to object code (<literal>.o</literal> file)</entry>
 122               <entry>static</entry>
 123               <entry>-</entry>
 124             </row>
 125           </tbody>
 126         </tgroup>
 127       </informaltable>
 128     </sect2>
 129
 130      <sect2>
 131       <title>Alternative modes of operation</title>
 132
 133       <para><xref linkend="modes"/></para>
 134
 135       <informaltable>
 136         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 137           <thead>
 138             <row>
 139               <entry>Flag</entry>
 140               <entry>Description</entry>
 141               <entry>Static/Dynamic</entry>
 142               <entry>Reverse</entry>
 143             </row>
 144           </thead>
 145           <tbody>
 146             <row>
 147               <entry><option>--interactive</option></entry>
 148               <entry>Interactive mode - normally used by just running <command>ghci</command></entry>
 149               <entry>static</entry>
 150               <entry>-</entry>
 151             </row>
 152             <row>
 153               <entry><option>--make</option></entry>
 154               <entry>Build a multi-module Haskell program, automatically figuring out dependencies. Likely to be much easier, and faster, than using <command>make</command>.</entry>
 155               <entry>static</entry>
 156               <entry>-</entry>
 157             </row>
 158             <row>
 159               <entry><option>-e <replaceable>expr</replaceable></option></entry>
 160               <entry>Evaluate <replaceable>expr</replaceable></entry>
 161               <entry>static</entry>
 162               <entry>-</entry>
 163             </row>
 164             <row>
 165               <entry><option>-M</option></entry>
 166               <entry>Generate dependency information suitable for use in a <filename>Makefile</filename>.</entry>
 167               <entry>static</entry>
 168               <entry>-</entry>
 169             </row>
 170             <row>
 171               <entry><option>--mk-dll</option></entry>
 172               <entry>DLL-creation mode (Windows only)</entry>
 173               <entry>static</entry>
 174               <entry>-</entry>
 175             </row>
 176           </tbody>
 177         </tgroup>
 178       </informaltable>
 179     </sect2>
 180
 181     <sect2>
 182       <title>Redirecting output</title>
 183
 184       <para><xref linkend="options-output"/></para>
 185
 186       <informaltable>
 187         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 188           <thead>
 189             <row>
 190               <entry>Flag</entry>
 191               <entry>Description</entry>
 192               <entry>Static/Dynamic</entry>
 193               <entry>Reverse</entry>
 194             </row>
 195           </thead>
 196           <tbody>
 197             <row>
 198               <entry><option>-hcsuf</option> <replaceable>suffix</replaceable></entry>
 199               <entry>set the suffix to use for intermediate C files</entry>
 200               <entry>static</entry>
 201               <entry>-</entry>
 202             </row>
 203             <row>
 204               <entry><option>-hidir</option> <replaceable>dir</replaceable></entry>
 205               <entry>set directory for interface files</entry>
 206               <entry>static</entry>
 207               <entry>-</entry>
 208             </row>
 209             <row>
 210               <entry><option>-hisuf</option> <replaceable>suffix</replaceable></entry>
 211               <entry>set the suffix to use for interface files</entry>
 212               <entry>static</entry>
 213               <entry>-</entry>
 214             </row>
 215             <row>
 216               <entry><option>-o</option> <replaceable>filename</replaceable></entry>
 217               <entry>set output filename</entry>
 218               <entry>static</entry>
 219               <entry>-</entry>
 220             </row>
 221             <row>
 222               <entry><option>-odir</option> <replaceable>dir</replaceable></entry>
 223               <entry>set output directory</entry>
 224               <entry>static</entry>
 225               <entry>-</entry>
 226             </row>
 227             <row>
 228               <entry><option>-ohi</option> <replaceable>filename</replaceable></entry>
 229               <entry>set the filename in which to put the interface</entry>
 230               <entry>static</entry>
 231               <entry></entry>
 232             </row>
 233             <row>
 234               <entry><option>-osuf</option> <replaceable>suffix</replaceable></entry>
 235               <entry>set the output file suffix</entry>
 236               <entry>static</entry>
 237               <entry>-</entry>
 238             </row>
 239           </tbody>
 240         </tgroup>
 241       </informaltable>
 242     </sect2>
 243
 244     <sect2>
 245       <title>Keeping intermediate files</title>
 246
 247       <para><xref linkend="keeping-intermediates"/></para>
 248
 249       <informaltable>
 250         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 251           <thead>
 252             <row>
 253               <entry>Flag</entry>
 254               <entry>Description</entry>
 255               <entry>Static/Dynamic</entry>
 256               <entry>Reverse</entry>
 257             </row>
 258           </thead>
 259           <tbody>
 260             <row>
 261               <entry><option>-keep-hc-file</option></entry>
 262               <entry>retain intermediate <literal>.hc</literal> files</entry>
 263               <entry>static</entry>
 264               <entry>-</entry>
 265             </row>
 266             <row>
 267               <entry><option>-keep-s-file</option></entry>
 268               <entry>retain intermediate <literal>.s</literal> files</entry>
 269               <entry>static</entry>
 270               <entry>-</entry>
 271             </row>
 272             <row>
 273               <entry><option>-keep-raw-s-file</option></entry>
 274               <entry>retain intermediate <literal>.raw_s</literal> files</entry>
 275               <entry>static</entry>
 276               <entry>-</entry>
 277             </row>
 278             <row>
 279               <entry><option>-keep-tmp-files</option></entry>
 280               <entry>retain all intermediate temporary files</entry>
 281               <entry>static</entry>
 282               <entry>-</entry>
 283             </row>
 284           </tbody>
 285         </tgroup>
 286       </informaltable>
 287     </sect2>
 288
 289     <sect2>
 290       <title>Temporary files</title>
 291
 292       <para><xref linkend="temp-files"/></para>
 293
 294       <informaltable>
 295         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 296           <thead>
 297             <row>
 298               <entry>Flag</entry>
 299               <entry>Description</entry>
 300               <entry>Static/Dynamic</entry>
 301               <entry>Reverse</entry>
 302             </row>
 303           </thead>
 304           <tbody>
 305             <row>
 306               <entry><option>-tmpdir</option></entry>
 307               <entry>set the directory for temporary files</entry>
 308               <entry>static</entry>
 309               <entry>-</entry>
 310             </row>
 311           </tbody>
 312         </tgroup>
 313       </informaltable>
 314     </sect2>
 315
 316     <sect2>
 317       <title>Finding imports</title>
 318
 319       <para><xref linkend="search-path"/></para>
 320
 321       <informaltable>
 322         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 323           <thead>
 324             <row>
 325               <entry>Flag</entry>
 326
 327               <entry>Description</entry>
 328               <entry>Static/Dynamic</entry>
 329               <entry>Reverse</entry>
 330             </row>
 331           </thead>
 332           <tbody>
 333             <row>
 334               <entry><option>-i</option><replaceable>dir1</replaceable>:<replaceable>dir2</replaceable>:...</entry>
 335               <entry>add <replaceable>dir</replaceable>,
 336                   <replaceable>dir2</replaceable>, etc. to import path</entry>
 337               <entry>static</entry>
 338               <entry>-</entry>
 339             </row>
 340             <row>
 341               <entry><option>-i</option></entry>
 342               <entry>Empty the import directory list</entry>
 343               <entry>static</entry>
 344               <entry>-</entry>
 345             </row>
 346           </tbody>
 347         </tgroup>
 348       </informaltable>
 349     </sect2>
 350
 351     <sect2>
 352       <title>Interface file options</title>
 353
 354       <para><xref linkend="hi-options"/></para>
 355
 356       <informaltable>
 357         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 358           <thead>
 359             <row>
 360               <entry>Flag</entry>
 361
 362               <entry>Description</entry>
 363               <entry>Static/Dynamic</entry>
 364               <entry>Reverse</entry>
 365             </row>
 366           </thead>
 367           <tbody>
 368             <row>
 369               <entry><option>-ddump-hi</option></entry>
 370               <entry>Dump the new interface to stdout</entry>
 371               <entry>dynamic</entry>
 372               <entry>-</entry>
 373             </row>
 374             <row>
 375               <entry><option>-ddump-hi-diffs</option></entry>
 376               <entry>Show the differences vs. the old interface</entry>
 377               <entry>dynamic</entry>
 378               <entry>-</entry>
 379             </row>
 380             <row>
 381               <entry><option>-ddump-minimal-imports</option></entry>
 382               <entry>Dump a minimal set of imports</entry>
 383               <entry>dynamic</entry>
 384               <entry>-</entry>
 385             </row>
 386             <row>
 387               <entry><option>--show-iface</option> <replaceable>file</replaceable></entry>
 388               <entry>Read the interface in
 389               <replaceable>file</replaceable> and dump it as text to
 390               <literal>stdout</literal>.</entry>
 391               <entry>static</entry>
 392               <entry>-</entry>
 393             </row>
 394           </tbody>
 395         </tgroup>
 396       </informaltable>
 397     </sect2>
 398
 399     <sect2>
 400       <title>Recompilation checking</title>
 401
 402       <para><xref linkend="recomp"/></para>
 403
 404       <informaltable>
 405         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 406           <thead>
 407             <row>
 408               <entry>Flag</entry>
 409
 410               <entry>Description</entry>
 411               <entry>Static/Dynamic</entry>
 412               <entry>Reverse</entry>
 413             </row>
 414           </thead>
 415           <tbody>
 416             <row>
 417               <entry><option>-no-recomp</option></entry>
 418               <entry>Turn off recompilation checking; implied by any
 419               <option>-ddump-X</option> option</entry>
 420               <entry>dynamic</entry>
 421               <entry><option>-recomp</option></entry>
 422             </row>
 423           </tbody>
 424         </tgroup>
 425       </informaltable>
 426     </sect2>
 427
 428     <sect2>
 429       <title>Interactive-mode options</title>
 430
 431       <para><xref linkend="ghci-dot-files"/></para>
 432
 433       <informaltable>
 434         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 435           <thead>
 436             <row>
 437               <entry>Flag</entry>
 438               <entry>Description</entry>
 439               <entry>Static/Dynamic</entry>
 440               <entry>Reverse</entry>
 441             </row>
 442           </thead>
 443           <tbody>
 444             <row>
 445               <entry><option>-ignore-dot-ghci</option></entry>
 446               <entry>Disable reading of <filename>.ghci</filename> files</entry>
 447               <entry>static</entry>
 448               <entry>-</entry>
 449             </row>
 450             <row>
 451               <entry><option>-read-dot-ghci</option></entry>
 452               <entry>Enable reading of <filename>.ghci</filename> files</entry>
 453               <entry>static</entry>
 454               <entry>-</entry>
 455             </row>
 456           </tbody>
 457         </tgroup>
 458       </informaltable>
 459     </sect2>
 460
 461     <sect2>
 462       <title>Packages</title>
 463
 464       <para><xref linkend="packages"/></para>
 465
 466       <informaltable>
 467         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 468           <thead>
 469             <row>
 470               <entry>Flag</entry>
 471               <entry>Description</entry>
 472               <entry>Static/Dynamic</entry>
 473               <entry>Reverse</entry>
 474             </row>
 475           </thead>
 476           <tbody>
 477             <row>
 478               <entry><option>-package</option> <replaceable>P</replaceable></entry>
 479               <entry>Expose package <replaceable>P</replaceable></entry>
 480               <entry>static</entry>
 481               <entry>-</entry>
 482             </row>
 483             <row>
 484               <entry><option>-hide-package</option> <replaceable>name</replaceable></entry>
 485               <entry>Hide package <replaceable>P</replaceable></entry>
 486               <entry>static</entry>
 487               <entry>-</entry>
 488             </row>
 489             <row>
 490               <entry><option>-ignore-package</option> <replaceable>name</replaceable></entry>
 491               <entry>Ignore package <replaceable>P</replaceable></entry>
 492               <entry>static</entry>
 493               <entry>-</entry>
 494             </row>
 495             <row>
 496               <entry><option>-package-conf</option> <replaceable>file</replaceable></entry>
 497               <entry>Load more packages from <replaceable>file</replaceable></entry>
 498               <entry>static</entry>
 499               <entry>-</entry>
 500             </row>
 501             <row>
 502               <entry><option>-no-user-package-conf</option></entry>
 503               <entry>Don't load the user's package config file.</entry>
 504               <entry>static</entry>
 505               <entry>-</entry>
 506             </row>
 507           </tbody>
 508         </tgroup>
 509       </informaltable>
 510     </sect2>
 511
 512     <sect2>
 513       <title>Language options</title>
 514
 515       <para><xref linkend="options-language"/></para>
 516
 517       <informaltable>
 518         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 519           <thead>
 520             <row>
 521               <entry>Flag</entry>
 522               <entry>Description</entry>
 523               <entry>Static/Dynamic</entry>
 524               <entry>Reverse</entry>
 525             </row>
 526           </thead>
 527           <tbody>
 528             <row>
 529               <entry><option>-fallow-overlapping-instances</option></entry>
 530               <entry>Enable overlapping instances</entry>
 531               <entry>dynamic</entry>
 532               <entry><option>-fno-allow-overlapping-instances</option></entry>
 533             </row>
 534             <row>
 535               <entry><option>-fallow-undecidable-instances</option></entry>
 536               <entry>Enable undecidable instances</entry>
 537               <entry>dynamic</entry>
 538               <entry><option>-fno-allow-undecidable-instances</option></entry>
 539             </row>
 540             <row>
 541               <entry><option>-fallow-incoherent-instances</option></entry>
 542               <entry>Enable incoherent instances</entry>
 543               <entry>dynamic</entry>
 544               <entry><option>-fno-allow-incoherent-instances</option></entry>
 545             </row>
 546             <row>
 547               <entry><option>-farrows</option></entry>
 548               <entry>Enable arrow notation extension</entry>
 549               <entry>dynamic</entry>
 550               <entry><option>-fno-arrows</option></entry>
 551             </row>
 552             <row>
 553               <entry><option>-fcontext-stack</option><replaceable>n</replaceable></entry>
 554               <entry>set the limit for context reduction</entry>
 555               <entry>static</entry>
 556               <entry><option>-</option></entry>
 557             </row>
 558             <row>
 559               <entry><option>-ffi</option> or <option>-fffi</option></entry>
 560               <entry>Enable foreign function interface (implied by
 561               <option>-fglasgow-exts</option>)</entry>
 562               <entry>dynamic</entry>
 563               <entry><option>-fno-ffi</option></entry>
 564             </row>
 565             <row>
 566               <entry><option>-fgenerics</option></entry>
 567               <entry>Enable generics</entry>
 568               <entry>dynamic</entry>
 569               <entry><option>-fno-fgenerics</option></entry>
 570             </row>
 571             <row>
 572               <entry><option>-fglasgow-exts</option></entry>
 573               <entry>Enable most language extensions</entry>
 574               <entry>dynamic</entry>
 575               <entry><option>-fno-glasgow-exts</option></entry>
 576             </row>
 577             <row>
 578               <entry><option>-fignore-asserts</option></entry>
 579               <entry>Ignore assertions</entry>
 580               <entry>dynamic</entry>
 581               <entry><option>-fno-ignore-asserts</option></entry>
 582             </row>
 583             <row>
 584               <entry><option>-fimplicit-params</option></entry>
 585               <entry>Enable Implicit Parameters.
 586               Implied by <option>-fglasgow-exts</option>.</entry>
 587               <entry>dynamic</entry>
 588               <entry><option>-fno-implicit-params</option></entry>
 589             </row>
 590             <row>
 591               <entry><option>-firrefutable-tuples</option></entry>
 592               <entry>Make tuple pattern matching irrefutable</entry>
 593               <entry>dynamic</entry>
 594               <entry><option>-fno-irrefutable-tuples</option></entry>
 595             </row>
 596             <row>
 597               <entry><option>-fno-implicit-prelude</option></entry>
 598               <entry>Don't implicitly <literal>import Prelude</literal></entry>
 599               <entry>dynamic</entry>
 600               <entry><option>-fimplicit-prelude</option></entry>
 601             </row>
 602             <row>
 603               <entry><option>-fno-monomorphism-restriction</option></entry>
 604               <entry>Disable the monomorphism restriction</entry>
 605               <entry>dynamic</entry>
 606               <entry><option>-fmonomorphism-restriction</option></entry>
 607             </row>
 608             <row>
 609               <entry><option>-fscoped-type-variables</option></entry>
 610               <entry>Enable lexically-scoped type variables.
 611               Implied by <option>-fglasgow-exts</option>.</entry>
 612               <entry>dynamic</entry>
 613               <entry><option>-fno-scoped-type-variables</option></entry>
 614             </row>
 615             <row>
 616               <entry><option>-fth</option></entry>
 617               <entry>Enable Template Haskell.
 618                 Implied by <option>-fglasgow-exts</option>.</entry>
 619               <entry>dynamic</entry>
 620               <entry><option>-fno-th</option></entry>
 621             </row>
 622           </tbody>
 623         </tgroup>
 624       </informaltable>
 625     </sect2>
 626
 627     <sect2>
 628       <title>Warnings</title>
 629
 630       <para>(<xref linkend="options-sanity"/></para>
 631
 632     <informaltable>
 633       <tgroup cols="3" align="left" colsep="1" rowsep="1">
 634         <thead>
 635           <row>
 636             <entry>Flag</entry>
 637             <entry>Description</entry>
 638             <entry>Static/Dynamic</entry>
 639             <entry>Reverse</entry>
 640           </row>
 641         </thead>
 642         <tbody>
 643           <row>
 644             <entry><option>-W</option></entry>
 645             <entry>enable normal warnings</entry>
 646             <entry>dynamic</entry>
 647             <entry><option>-w</option></entry>
 648           </row>
 649           <row>
 650             <entry><option>-w</option></entry>
 651             <entry>disable all warnings</entry>
 652             <entry>dynamic</entry>
 653             <entry>-</entry>
 654           </row>
 655           <row>
 656             <entry><option>-Wall</option></entry>
 657             <entry>enable all warnings</entry>
 658             <entry>dynamic</entry>
 659             <entry><option>-w</option></entry>
 660           </row>
 661           <row>
 662             <entry><option>-Werror</option></entry>
 663             <entry>make warnings fatal</entry>
 664             <entry>dynamic</entry>
 665             <entry></entry>
 666           </row>
 667
 668           <row>
 669             <entry><option>-fwarn-deprecations</option></entry>
 670             <entry>warn about uses of functions &amp; types that are deprecated</entry>
 671             <entry>dynamic</entry>
 672             <entry><option>-fno-warn-deprecations</option></entry>
 673           </row>
 674
 675           <row>
 676             <entry><option>-fwarn-duplicate-exports</option></entry>
 677             <entry>warn when an entity is exported multiple times</entry>
 678             <entry>dynamic</entry>
 679             <entry><option>-fno-warn-duplicate-exports</option></entry>
 680           </row>
 681
 682           <row>
 683             <entry><option>-fwarn-hi-shadowing</option></entry>
 684             <entry>warn when a <literal>.hi</literal> file in the
 685             current directory shadows a library</entry>
 686             <entry>dynamic</entry>
 687             <entry><option>-fno-warn-hi-shadowing</option></entry>
 688           </row>
 689
 690           <row>
 691             <entry><option>-fwarn-incomplete-patterns</option></entry>
 692             <entry>warn when a pattern match could fail</entry>
 693             <entry>dynamic</entry>
 694             <entry><option>-fno-warn-incomplete-patterns</option></entry>
 695           </row>
 696
 697           <row>
 698             <entry><option>-fwarn-incomplete-record-updates</option></entry>
 699             <entry>warn when a record update could fail</entry>
 700             <entry>dynamic</entry>
 701             <entry><option>-fno-warn-incomplete-record-updates</option></entry>
 702           </row>
 703
 704           <row>
 705             <entry><option>-fwarn-misc</option></entry>
 706             <entry>enable miscellaneous warnings</entry>
 707             <entry>dynamic</entry>
 708             <entry><option>-fno-warn-misc</option></entry>
 709           </row>
 710
 711           <row>
 712             <entry><option>-fwarn-missing-fields</option></entry>
 713             <entry>warn when fields of a record are uninitialised</entry>
 714             <entry>dynamic</entry>
 715             <entry><option>-fno-warn-missing-fields</option></entry>
 716           </row>
 717
 718           <row>
 719             <entry><option>-fwarn-missing-methods</option></entry>
 720             <entry>warn when class methods are undefined</entry>
 721             <entry>dynamic</entry>
 722             <entry><option>-fno-warn-missing-methods</option></entry>
 723           </row>
 724
 725           <row>
 726             <entry><option>-fwarn-missing-signatures</option></entry>
 727             <entry>warn about top-level functions without signatures</entry>
 728             <entry>dynamic</entry>
 729             <entry><option>-fno-warn-missing-signatures</option></entry>
 730           </row>
 731
 732           <row>
 733             <entry><option>-fwarn-name-shadowing</option></entry>
 734             <entry>warn when names are shadowed</entry>
 735             <entry>dynamic</entry>
 736             <entry><option>-fno-warn-name-shadowing</option></entry>
 737           </row>
 738
 739           <row>
 740             <entry><option>-fwarn-oprhans</option></entry>
 741             <entry>warn when the module contains "orphan" instance declarations
 742             or rewrite rules</entry>
 743             <entry>dynamic</entry>
 744             <entry><option>-fno-warn-orphans</option></entry>
 745           </row>
 746
 747           <row>
 748             <entry><option>-fwarn-overlapping-patterns</option></entry>
 749             <entry>warn about overlapping patterns</entry>
 750             <entry>dynamic</entry>
 751             <entry><option>-fno-warn-overlapping-patterns</option></entry>
 752           </row>
 753
 754           <row>
 755             <entry><option>-fwarn-simple-patterns</option></entry>
 756             <entry>warn about lambda-patterns that can fail</entry>
 757             <entry>dynamic</entry>
 758             <entry><option>-fno-warn-simple-patterns</option></entry>
 759           </row>
 760
 761           <row>
 762             <entry><option>-fwarn-type-defaults</option></entry>
 763             <entry>warn when defaulting happens</entry>
 764             <entry>dynamic</entry>
 765             <entry><option>-fno-warn-type-defaults</option></entry>
 766           </row>
 767
 768           <row>
 769             <entry><option>-fwarn-unused-binds</option></entry>
 770             <entry>warn about bindings that are unused</entry>
 771             <entry>dynamic</entry>
 772             <entry><option>-fno-warn-unused-binds</option></entry>
 773           </row>
 774
 775           <row>
 776             <entry><option>-fwarn-unused-imports</option></entry>
 777             <entry>warn about unnecessary imports</entry>
 778             <entry>dynamic</entry>
 779             <entry><option>-fno-warn-unused-imports</option></entry>
 780           </row>
 781
 782           <row>
 783             <entry><option>-fwarn-unused-matches</option></entry>
 784             <entry>warn about variables in patterns that aren't used</entry>
 785             <entry>dynamic</entry>
 786             <entry><option>-fno-warn-unused-matches</option></entry>
 787           </row>
 788
 789           </tbody>
 790         </tgroup>
 791       </informaltable>
 792
 793     </sect2>
 794     <sect2>
 795       <title>Optimisation levels</title>
 796
 797       <para><xref linkend="options-optimise"/></para>
 798
 799       <informaltable>
 800         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 801           <thead>
 802             <row>
 803               <entry>Flag</entry>
 804               <entry>Description</entry>
 805               <entry>Static/Dynamic</entry>
 806               <entry>Reverse</entry>
 807             </row>
 808           </thead>
 809           <tbody>
 810             <row>
 811               <entry><option>-O</option></entry>
 812               <entry>Enable default optimisation (level 1)</entry>
 813               <entry>dynamic</entry>
 814               <entry><option>-O0</option></entry>
 815             </row>
 816             <row>
 817               <entry><option>-O</option><replaceable>n</replaceable></entry>
 818               <entry>Set optimisation level <replaceable>n</replaceable></entry>
 819               <entry>dynamic</entry>
 820               <entry><option>-O0</option></entry>
 821             </row>
 822           </tbody>
 823         </tgroup>
 824       </informaltable>
 825
 826     </sect2>
 827     <sect2>
 828       <title>Individual optimisations</title>
 829
 830       <para><xref linkend="options-f"/></para>
 831
 832       <informaltable>
 833         <tgroup cols="3" align="left" colsep="1" rowsep="1">
 834           <thead>
 835             <row>
 836               <entry>Flag</entry>
 837               <entry>Description</entry>
 838               <entry>Static/Dynamic</entry>
 839               <entry>Reverse</entry>
 840             </row>
 841           </thead>
 842           <tbody>
 843             <row>
 844               <entry><option>-fcase-merge</option></entry>
 845               <entry>Enable case-merging</entry>
 846               <entry>dynamic</entry>
 847               <entry><option>-fno-case-merge</option></entry>
 848             </row>
 849
 850             <row>
 851               <entry><option>-fdicts-strict</option></entry>
 852               <entry>Make dictionaries strict</entry>
 853               <entry>static</entry>
 854               <entry><option>-fno-dicts-strict</option></entry>
 855             </row>
 856
 857             <row>
 858               <entry><option>-fdo-eta-reduction</option></entry>
 859               <entry>Enable eta-reduction</entry>
 860               <entry>dynamic</entry>
 861               <entry><option>-fno-do-eta-reduction</option></entry>
 862             </row>
 863
 864             <row>
 865               <entry><option>-fdo-lambda-eta-expansion</option></entry>
 866               <entry>Enable lambda eta-reduction</entry>
 867               <entry>dynamic</entry>
 868               <entry><option>-fno-do-lambda-eta-expansion</option></entry>
 869             </row>
 870
 871             <row>
 872               <entry><option>-fexcess-precision</option></entry>
 873               <entry>Enable excess intermediate precision</entry>
 874               <entry>static</entry>
 875               <entry><option>-fno-excess-precision</option></entry>
 876             </row>
 877
 878             <row>
 879               <entry><option>-frules-off</option></entry>
 880               <entry>Switch off all rewrite rules (including rules
 881               generated by automatic specialisation of overloaded functions)</entry>
 882               <entry>static</entry>
 883               <entry><option>-frules-off</option></entry>
 884             </row>
 885
 886             <row>
 887               <entry><option>-fignore-asserts</option></entry>
 888               <entry>Ignore assertions in the source</entry>
 889               <entry>static</entry>
 890               <entry><option>-fno-ignore-asserts</option></entry>
 891             </row>
 892
 893             <row>
 894               <entry><option>-fignore-interface-pragmas</option></entry>
 895               <entry>Ignore pragmas in interface files</entry>
 896               <entry>static</entry>
 897               <entry><option>-fno-ignore-interface-pragmas</option></entry>
 898             </row>
 899
 900             <row>
 901               <entry><option>-fliberate-case-threshold</option></entry>
 902               <entry>Tweak the liberate-case optimisation (default: 10)</entry>
 903               <entry>static</entry>
 904               <entry><option>-fno-liberate-case-threshold</option></entry>
 905             </row>
 906
 907             <row>
 908               <entry><option>-fomit-interface-pragmas</option></entry>
 909               <entry>Don't generate interface pragmas</entry>
 910               <entry>dynamic</entry>
 911               <entry><option>-fno-omit-interface-pragmas</option></entry>
 912             </row>
 913
 914             <row>
 915               <entry><option>-fmax-worker-args</option></entry>
 916               <entry>If a worker has that many arguments, none will be
 917                 unpacked anymore (default: 10)</entry>
 918               <entry>static</entry>
 919               <entry>-</entry>
 920             </row>
 921
 922             <row>
 923               <entry><option>-fmax-simplifier-iterations</option></entry>
 924               <entry>Set the max iterations for the simplifier</entry>
 925               <entry>dynamic</entry>
 926               <entry>-</entry>
 927             </row>
 928
 929             <row>
 930               <entry><option>-fno-state-hack</option></entry>
 931               <entry>Turn off the "state hack" whereby any lambda with a real-world state token
 932               as argument is considered to be single-entry.  Hence OK to inline things inside it.</entry>
 933               <entry>static</entry>
 934               <entry>-</entry>
 935             </row>
 936
 937             <row>
 938               <entry><option>-fno-cpr</option></entry>
 939               <entry>Turn off CPR analysis</entry>
 940               <entry>static</entry>
 941               <entry>-fcpr</entry>
 942             </row>
 943
 944             <row>
 945               <entry><option>-fno-cse</option></entry>
 946               <entry>Turn off common sub-expression</entry>
 947               <entry>dynamic</entry>
 948               <entry>-</entry>
 949             </row>
 950
 951             <row>
 952               <entry><option>-fno-full-laziness</option></entry>
 953               <entry>Turn off full laziness (floating bindings outwards).  It is on by default.</entry>
 954               <entry>dynamic</entry>
 955               <entry>-ffull-laziness</entry>
 956             </row>
 957
 958             <row>
 959               <entry><option>-fno-pre-inlining</option></entry>
 960               <entry>Turn off pre-inlining</entry>
 961               <entry>static</entry>
 962               <entry>-</entry>
 963             </row>
 964
 965             <row>
 966               <entry><option>-fno-strictness</option></entry>
 967               <entry>Turn off strictness analysis</entry>
 968               <entry>dynamic</entry>
 969               <entry>-</entry>
 970             </row>
 971
 972             <row>
 973               <entry><option>-fnumbers-strict</option></entry>
 974               <entry>Make numbers strict</entry>
 975               <entry>dynamic</entry>
 976               <entry><option>-fno-numbers-strict</option></entry>
 977             </row>
 978
 979             <row>
 980               <entry><option>-funbox-strict-fields</option></entry>
 981               <entry>Flatten strict constructor fields</entry>
 982               <entry>dynamic</entry>
 983               <entry><option>-fno-unbox-strict-fields</option></entry>
 984             </row>
 985
 986             <row>
 987               <entry><option>-funfolding-creation-threshold</option></entry>
 988               <entry>Tweak unfolding settings</entry>
 989               <entry>static</entry>
 990               <entry><option>-fno-unfolding-creation-threshold</option></entry>
 991             </row>
 992
 993             <row>
 994               <entry><option>-funfolding-fun-discount</option></entry>
 995               <entry>Tweak unfolding settings</entry>
 996               <entry>static</entry>
 997               <entry><option>-fno-unfolding-fun-discount</option></entry>
 998             </row>
 999
1000             <row>
1001               <entry><option>-funfolding-keeness-factor</option></entry>
1002               <entry>Tweak unfolding settings</entry>
1003               <entry>static</entry>
1004               <entry><option>-fno-unfolding-keeness-factor</option></entry>
1005             </row>
1006
1007             <row>
1008               <entry><option>-funfolding-update-in-place</option></entry>
1009               <entry>Tweak unfolding settings</entry>
1010               <entry>static</entry>
1011               <entry><option>-fno-unfolding-update-in-place</option></entry>
1012             </row>
1013
1014             <row>
1015               <entry><option>-funfolding-use-threshold</option></entry>
1016               <entry>Tweak unfolding settings</entry>
1017               <entry>static</entry>
1018               <entry><option>-fno-unfolding-use-threshold</option></entry>
1019             </row>
1020           </tbody>
1021         </tgroup>
1022       </informaltable>
1023     </sect2>
1024
1025     <sect2>
1026       <title>Profiling options</title>
1027
1028       <para><xref linkend="profiling"/></para>
1029
1030       <informaltable>
1031         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1032           <thead>
1033             <row>
1034               <entry>Flag</entry>
1035               <entry>Description</entry>
1036               <entry>Static/Dynamic</entry>
1037               <entry>Reverse</entry>
1038             </row>
1039           </thead>
1040           <tbody>
1041             <row>
1042               <entry><option>-auto</option></entry>
1043               <entry>Auto-add <literal>_scc_</literal>s to all
1044               exported functions</entry>
1045               <entry>static</entry>
1046               <entry><option>-no-auto</option></entry>
1047             </row>
1048             <row>
1049               <entry><option>-auto-all</option></entry>
1050               <entry>Auto-add <literal>_scc_</literal>s to all
1051               top-level functions</entry>
1052               <entry>static</entry>
1053               <entry><option>-no-auto-all</option></entry>
1054             </row>
1055             <row>
1056               <entry><option>-auto-dicts</option></entry>
1057               <entry>Auto-add <literal>_scc_</literal>s to all dictionaries</entry>
1058               <entry>static</entry>
1059               <entry><option>-no-auto-dicts</option></entry>
1060             </row>
1061             <row>
1062               <entry><option>-caf-all</option></entry>
1063               <entry>Auto-add <literal>_scc_</literal>s to all CAFs</entry>
1064               <entry>static</entry>
1065               <entry><option>-no-caf-all</option></entry>
1066             </row>
1067             <row>
1068               <entry><option>-prof</option></entry>
1069               <entry>Turn on profiling</entry>
1070               <entry>static</entry>
1071               <entry>-</entry>
1072             </row>
1073             <row>
1074               <entry><option>-ticky</option></entry>
1075               <entry>Turn on ticky-ticky profiling</entry>
1076               <entry>static</entry>
1077               <entry>-</entry>
1078             </row>
1079           </tbody>
1080         </tgroup>
1081       </informaltable>
1082     </sect2>
1083
1084     <sect2>
1085       <title>Parallelism options</title>
1086
1087       <para><xref linkend="sec-using-parallel"/></para>
1088
1089       <informaltable>
1090         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1091           <thead>
1092             <row>
1093               <entry>Flag</entry>
1094               <entry>Description</entry>
1095               <entry>Static/Dynamic</entry>
1096               <entry>Reverse</entry>
1097             </row>
1098           </thead>
1099           <tbody>
1100             <row>
1101               <entry><option>-gransim</option></entry>
1102               <entry>Enable GRANSIM</entry>
1103               <entry>static</entry>
1104               <entry>-</entry>
1105             </row>
1106             <row>
1107               <entry><option>-parallel</option></entry>
1108               <entry>Enable Parallel Haskell</entry>
1109               <entry>static</entry>
1110               <entry>-</entry>
1111             </row>
1112             <row>
1113               <entry><option>-smp</option></entry>
1114               <entry>Enable SMP support</entry>
1115               <entry>static</entry>
1116               <entry>-</entry>
1117             </row>
1118           </tbody>
1119         </tgroup>
1120       </informaltable>
1121     </sect2>
1122
1123     <sect2>
1124       <title>C pre-processor options</title>
1125
1126       <para><xref linkend="c-pre-processor"/></para>
1127
1128       <informaltable>
1129         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1130           <thead>
1131             <row>
1132               <entry>Flag</entry>
1133               <entry>Description</entry>
1134               <entry>Static/Dynamic</entry>
1135               <entry>Reverse</entry>
1136             </row>
1137           </thead>
1138           <tbody>
1139             <row>
1140               <entry><option>-cpp</option></entry>
1141               <entry>Run the C pre-processor on Haskell source files</entry>
1142               <entry>dynamic</entry>
1143               <entry>-</entry>
1144             </row>
1145             <row>
1146               <entry><option>-D</option><replaceable>symbol</replaceable><optional>=<replaceable>value</replaceable></optional></entry>
1147               <entry>Define a symbol in the C pre-processor</entry>
1148               <entry>dynamic</entry>
1149               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1150             </row>
1151             <row>
1152               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1153               <entry>Undefine a symbol in the C pre-processor</entry>
1154               <entry>dynamic</entry>
1155               <entry>-</entry>
1156             </row>
1157             <row>
1158               <entry><option>-I</option><replaceable>dir</replaceable></entry>
1159               <entry>Add <replaceable>dir</replaceable> to the
1160               directory search list for <literal>#include</literal> files</entry>
1161               <entry>static</entry>
1162               <entry>-</entry>
1163             </row>
1164           </tbody>
1165         </tgroup>
1166       </informaltable>
1167     </sect2>
1168
1169     <sect2>
1170       <title>C compiler options</title>
1171
1172       <para><xref linkend="options-C-compiler"/></para>
1173       <informaltable>
1174         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1175           <thead>
1176             <row>
1177               <entry>Flag</entry>
1178               <entry>Description</entry>
1179               <entry>Static/Dynamic</entry>
1180               <entry>Reverse</entry>
1181             </row>
1182           </thead>
1183           <tbody>
1184             <row>
1185               <entry><option>-#include</option> <replaceable>file</replaceable></entry>
1186               <entry>Include <replaceable>file</replaceable> when
1187               compiling the <filename>.hc</filename> file</entry>
1188               <entry>dynamic</entry>
1189               <entry>-</entry>
1190             </row>
1191           </tbody>
1192         </tgroup>
1193       </informaltable>
1194     </sect2>
1195
1196     <sect2>
1197       <title>Code generation options</title>
1198
1199       <para><xref linkend="options-codegen"/></para>
1200
1201       <informaltable>
1202         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1203           <thead>
1204             <row>
1205               <entry>Flag</entry>
1206               <entry>Description</entry>
1207               <entry>Static/Dynamic</entry>
1208               <entry>Reverse</entry>
1209             </row>
1210           </thead>
1211           <tbody>
1212             <row>
1213               <entry><option>-fasm</option></entry>
1214               <entry>Use the native code generator</entry>
1215               <entry>dynamic</entry>
1216               <entry>-fvia-C</entry>
1217             </row>
1218             <row>
1219               <entry><option>-fvia-C</option></entry>
1220               <entry>Compile via C</entry>
1221               <entry>dynamic</entry>
1222               <entry>-fasm</entry>
1223             </row>
1224             <row>
1225               <entry><option>-fno-code</option></entry>
1226               <entry>Omit code generation</entry>
1227               <entry>static</entry>
1228               <entry>-</entry>
1229             </row>
1230           </tbody>
1231         </tgroup>
1232       </informaltable>
1233     </sect2>
1234
1235     <sect2>
1236       <title>Linking options</title>
1237
1238       <para><xref linkend="options-linker"/></para>
1239
1240       <informaltable>
1241         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1242           <thead>
1243             <row>
1244               <entry>Flag</entry>
1245               <entry>Description</entry>
1246               <entry>Static/Dynamic</entry>
1247               <entry>Reverse</entry>
1248             </row>
1249           </thead>
1250           <tbody>
1251             <row>
1252               <entry><option>-dynamic</option></entry>
1253               <entry>Use dynamic Haskell libraries (if available)</entry>
1254               <entry>static</entry>
1255               <entry>-</entry>
1256             </row>
1257             <row>
1258               <entry><option>-framework</option> <replaceable>name</replaceable></entry>
1259               <entry>On Darwin/MacOS X only, link in the framework <replaceable>name</replaceable>.
1260                 This option corresponds to the <option>-framework</option> option for Apple's Linker.</entry>
1261               <entry>static</entry>
1262               <entry>-</entry>
1263             </row>
1264             <row>
1265               <entry><option>-framework-path</option> <replaceable>name</replaceable></entry>
1266               <entry>On Darwin/MacOS X only, add <replaceable>dir</replaceable> to the list of
1267                 directories searched for frameworks.
1268                 This option corresponds to the <option>-F</option> option for Apple's Linker.</entry>
1269               <entry>static</entry>
1270               <entry>-</entry>
1271             </row>
1272             <row>
1273               <entry><option>-l</option><replaceable>lib</replaceable></entry>
1274               <entry>Link in library <replaceable>lib</replaceable></entry>
1275               <entry>static</entry>
1276               <entry>-</entry>
1277             </row>
1278             <row>
1279               <entry><option>-L</option><replaceable>dir</replaceable></entry>
1280               <entry>Add <replaceable>dir</replaceable> to the list of
1281               directories searched for libraries</entry>
1282               <entry>static</entry>
1283               <entry>-</entry>
1284             </row>
1285             <row>
1286               <entry><option>-main-is</option></entry>
1287               <entry>Set main function</entry>
1288               <entry>static</entry>
1289               <entry>-</entry>
1290             </row>
1291             <row>
1292               <entry><option>-no-hs-main</option></entry>
1293               <entry>Don't assume this program contains <literal>main</literal></entry>
1294               <entry>static</entry>
1295               <entry>-</entry>
1296             </row>
1297             <row>
1298               <entry><option>-no-link</option></entry>
1299               <entry>Omit linking</entry>
1300               <entry>static</entry>
1301               <entry>-</entry>
1302             </row>
1303             <row>
1304               <entry><option>-package</option> <replaceable>name</replaceable></entry>
1305               <entry>Link in package <replaceable>name</replaceable></entry>
1306               <entry>static</entry>
1307               <entry>-</entry>
1308             </row>
1309             <row>
1310               <entry><option>-split-objs</option></entry>
1311               <entry>Split objects (for libraries)</entry>
1312               <entry>static</entry>
1313               <entry>-</entry>
1314             </row>
1315             <row>
1316               <entry><option>-static</option></entry>
1317               <entry>Use static Haskell libraries</entry>
1318               <entry>static</entry>
1319               <entry>-</entry>
1320             </row>
1321             <row>
1322               <entry><option>-threaded</option></entry>
1323               <entry>Use the threaded runtime</entry>
1324               <entry>static</entry>
1325               <entry>-</entry>
1326             </row>
1327             <row>
1328               <entry><option>-debug</option></entry>
1329               <entry>Use the debugging runtime</entry>
1330               <entry>static</entry>
1331               <entry>-</entry>
1332             </row>
1333           </tbody>
1334         </tgroup>
1335       </informaltable>
1336     </sect2>
1337
1338     <sect2>
1339       <title>Replacing phases</title>
1340
1341       <para><xref linkend="replacing-phases"/></para>
1342
1343       <informaltable>
1344         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1345           <thead>
1346             <row>
1347               <entry>Flag</entry>
1348               <entry>Description</entry>
1349               <entry>Static/Dynamic</entry>
1350               <entry>Reverse</entry>
1351             </row>
1352           </thead>
1353           <tbody>
1354             <row>
1355               <entry><option>-pgmL</option> <replaceable>cmd</replaceable></entry>
1356               <entry>Use <replaceable>cmd</replaceable> as the literate pre-processor</entry>
1357               <entry>static</entry>
1358               <entry>-</entry>
1359             </row>
1360             <row>
1361               <entry><option>-pgmP</option> <replaceable>cmd</replaceable></entry>
1362               <entry>Use <replaceable>cmd</replaceable> as the C
1363               pre-processor (with <option>-cpp</option> only)</entry>
1364               <entry>static</entry> <entry>-</entry>
1365             </row>
1366             <row>
1367               <entry><option>-pgmc</option> <replaceable>cmd</replaceable></entry>
1368               <entry>Use <replaceable>cmd</replaceable> as the C compiler</entry>
1369               <entry>static</entry>
1370               <entry>-</entry>
1371             </row>
1372             <row>
1373               <entry><option>-pgma</option> <replaceable>cmd</replaceable></entry>
1374               <entry>Use <replaceable>cmd</replaceable> as the assembler</entry>
1375               <entry>static</entry>
1376               <entry>-</entry>
1377             </row>
1378             <row>
1379               <entry><option>-pgml</option> <replaceable>cmd</replaceable></entry>
1380               <entry>Use <replaceable>cmd</replaceable> as the linker</entry>
1381               <entry>static</entry>
1382               <entry>-</entry>
1383             </row>
1384             <row>
1385               <entry><option>-pgmdll</option> <replaceable>cmd</replaceable></entry>
1386               <entry>Use <replaceable>cmd</replaceable> as the DLL generator</entry>
1387               <entry>static</entry>
1388               <entry>-</entry>
1389             </row>
1390             <row>
1391               <entry><option>-pgmdep</option> <replaceable>cmd</replaceable></entry>
1392               <entry>Use <replaceable>cmd</replaceable> as the dependency generator</entry>
1393               <entry>static</entry>
1394               <entry>-</entry>
1395             </row>
1396             <row>
1397               <entry><option>-pgmF</option> <replaceable>cmd</replaceable></entry>
1398               <entry>Use <replaceable>cmd</replaceable> as the pre-processor
1399               (with <option>-F</option> only)</entry>
1400               <entry>static</entry>
1401               <entry>-</entry>
1402             </row>
1403           </tbody>
1404         </tgroup>
1405       </informaltable>
1406       <indexterm><primary><option>-pgmL</option></primary></indexterm>
1407       <indexterm><primary><option>-pgmP</option></primary></indexterm>
1408       <indexterm><primary><option>-pgmc</option></primary></indexterm>
1409       <indexterm><primary><option>-pgma</option></primary></indexterm>
1410       <indexterm><primary><option>-pgml</option></primary></indexterm>
1411       <indexterm><primary><option>-pgmdll</option></primary></indexterm>
1412       <indexterm><primary><option>-pgmdep</option></primary></indexterm>
1413       <indexterm><primary><option>-pgmF</option></primary></indexterm>
1414
1415     </sect2>
1416
1417     <sect2>
1418       <title>Forcing options to particular phases</title>
1419
1420       <para><xref linkend="forcing-options-through"/></para>
1421
1422       <informaltable>
1423         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1424           <thead>
1425             <row>
1426               <entry>Flag</entry>
1427               <entry>Description</entry>
1428               <entry>Static/Dynamic</entry>
1429               <entry>Reverse</entry>
1430             </row>
1431           </thead>
1432           <tbody>
1433             <row>
1434               <entry><option>-optL</option> <replaceable>option</replaceable></entry>
1435               <entry>pass <replaceable>option</replaceable> to the literate pre-processor</entry>
1436               <entry>dynamic</entry>
1437               <entry>-</entry>
1438             </row>
1439             <row>
1440               <entry><option>-optP</option> <replaceable>option</replaceable></entry>
1441               <entry>pass <replaceable>option</replaceable> to cpp (with
1442               <option>-cpp</option> only)</entry>
1443               <entry>dynamic</entry>
1444               <entry>-</entry>
1445             </row>
1446             <row>
1447               <entry><option>-optF</option> <replaceable>option</replaceable></entry>
1448               <entry>pass <replaceable>option</replaceable> to the
1449               custom pre-processor</entry>
1450               <entry>dynamic</entry>
1451               <entry>-</entry>
1452             </row>
1453             <row>
1454               <entry><option>-optc</option> <replaceable>option</replaceable></entry>
1455               <entry>pass <replaceable>option</replaceable> to the C compiler</entry>
1456               <entry>dynamic</entry>
1457               <entry>-</entry>
1458             </row>
1459             <row>
1460               <entry><option>-opta</option> <replaceable>option</replaceable></entry>
1461               <entry>pass <replaceable>option</replaceable> to the assembler</entry>
1462               <entry>dynamic</entry>
1463               <entry>-</entry>
1464             </row>
1465             <row>
1466               <entry><option>-optl</option> <replaceable>option</replaceable></entry>
1467               <entry>pass <replaceable>option</replaceable> to the linker</entry>
1468               <entry>static</entry>
1469               <entry>-</entry>
1470             </row>
1471             <row>
1472               <entry><option>-optdll</option> <replaceable>option</replaceable></entry>
1473               <entry>pass <replaceable>option</replaceable> to the DLL generator</entry>
1474               <entry>static</entry>
1475               <entry>-</entry>
1476             </row>
1477             <row>
1478               <entry><option>-optdep</option> <replaceable>option</replaceable></entry>
1479               <entry>pass <replaceable>option</replaceable> to the dependency generator</entry>
1480               <entry>static</entry>
1481               <entry>-</entry>
1482             </row>
1483           </tbody>
1484         </tgroup>
1485       </informaltable>
1486     </sect2>
1487
1488     <sect2>
1489       <title>Platform-specific options</title>
1490
1491       <para><xref linkend="options-platform"/></para>
1492
1493       <informaltable>
1494         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1495           <thead>
1496             <row>
1497               <entry>Flag</entry>
1498               <entry>Description</entry>
1499               <entry>Static/Dynamic</entry>
1500               <entry>Reverse</entry>
1501             </row>
1502           </thead>
1503           <tbody>
1504             <row>
1505               <entry><option>-mv8</option></entry>
1506               <entry>(SPARC only) enable version 8 support</entry>
1507               <entry>static</entry>
1508               <entry>-</entry>
1509             </row>
1510             <row>
1511               <entry><option>-monly-[32]-regs</option></entry>
1512               <entry>(x86 only) give some registers back to the C compiler</entry>
1513               <entry>dynamic</entry>
1514               <entry>-</entry>
1515             </row>
1516           </tbody>
1517         </tgroup>
1518       </informaltable>
1519     </sect2>
1520
1521
1522     <sect2>
1523       <title>External core file options</title>
1524
1525       <para><xref linkend="ext-core"/></para>
1526
1527       <informaltable>
1528         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1529           <thead>
1530             <row>
1531               <entry>Flag</entry>
1532               <entry>Description</entry>
1533               <entry>Static/Dynamic</entry>
1534               <entry>Reverse</entry>
1535             </row>
1536           </thead>
1537           <tbody>
1538             <row>
1539               <entry><option>-fext-core</option></entry>
1540               <entry>Generate <filename>.hcr</filename> external Core files</entry>
1541               <entry>static</entry>
1542               <entry>-</entry>
1543             </row>
1544           </tbody>
1545         </tgroup>
1546       </informaltable>
1547     </sect2>
1548
1549
1550     <sect2>
1551       <title>Compiler debugging options</title>
1552
1553       <para><xref linkend="options-debugging"/></para>
1554
1555       <informaltable>
1556         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1557           <thead>
1558             <row>
1559               <entry>Flag</entry>
1560               <entry>Description</entry>
1561               <entry>Static/Dynamic</entry>
1562               <entry>Reverse</entry>
1563             </row>
1564           </thead>
1565           <tbody>
1566             <row>
1567               <entry><option>-dcore-lint</option></entry>
1568               <entry>Turn on internal sanity checking</entry>
1569               <entry>dynamic</entry>
1570               <entry>-</entry>
1571             </row>
1572             <row>
1573               <entry><option>-ddump-absC</option></entry>
1574               <entry>Dump abstract C</entry>
1575               <entry>dynamic</entry>
1576               <entry>-</entry>
1577             </row>
1578             <row>
1579               <entry><option>-ddump-asm</option></entry>
1580               <entry>Dump assembly</entry>
1581               <entry>dynamic</entry>
1582               <entry>-</entry>
1583             </row>
1584             <row>
1585               <entry><option>-ddump-bcos</option></entry>
1586               <entry>Dump interpreter byte code</entry>
1587               <entry>dynamic</entry>
1588               <entry>-</entry>
1589             </row>
1590             <row>
1591               <entry><option>-ddump-cpranal</option></entry>
1592               <entry>Dump output from CPR analysis</entry>
1593               <entry>dynamic</entry>
1594               <entry>-</entry>
1595             </row>
1596             <row>
1597               <entry><option>-ddump-cse</option></entry>
1598               <entry>Dump CSE output</entry>
1599               <entry>dynamic</entry>
1600               <entry>-</entry>
1601             </row>
1602             <row>
1603               <entry><option>-ddump-deriv</option></entry>
1604               <entry>Dump deriving output</entry>
1605               <entry>dynamic</entry>
1606               <entry>-</entry>
1607             </row>
1608             <row>
1609               <entry><option>-ddump-ds</option></entry>
1610               <entry>Dump desugarer output</entry>
1611               <entry>dynamic</entry>
1612               <entry>-</entry>
1613             </row>
1614             <row>
1615               <entry><option>-ddump-flatC</option></entry>
1616               <entry>Dump &ldquo;flat&rdquo; C</entry>
1617               <entry>dynamic</entry>
1618               <entry>-</entry>
1619             </row>
1620             <row>
1621               <entry><option>-ddump-foreign</option></entry>
1622               <entry>Dump <literal>foreign export</literal> stubs</entry>
1623               <entry>dynamic</entry>
1624               <entry>-</entry>
1625             </row>
1626             <row>
1627               <entry><option>-ddump-inlinings</option></entry>
1628               <entry>Dump inlining info</entry>
1629               <entry>dynamic</entry>
1630               <entry>-</entry>
1631             </row>
1632             <row>
1633               <entry><option>-ddump-occur-anal</option></entry>
1634               <entry>Dump occurrence analysis output</entry>
1635               <entry>dynamic</entry>
1636               <entry>-</entry>
1637             </row>
1638             <row>
1639               <entry><option>-ddump-parsed</option></entry>
1640               <entry>Dump parse tree</entry>
1641               <entry>dynamic</entry>
1642               <entry>-</entry>
1643             </row>
1644             <row>
1645               <entry><option>-ddump-realC</option></entry>
1646               <entry>Dump &ldquo;real&rdquo; C</entry>
1647               <entry>dynamic</entry>
1648               <entry>-</entry>
1649             </row>
1650             <row>
1651               <entry><option>-ddump-rn</option></entry>
1652               <entry>Dump renamer output</entry>
1653               <entry>dynamic</entry>
1654               <entry>-</entry>
1655             </row>
1656             <row>
1657               <entry><option>-ddump-rules</option></entry>
1658               <entry>Dump rules</entry>
1659               <entry>dynamic</entry>
1660               <entry>-</entry>
1661             </row>
1662             <row>
1663               <entry><option>-ddump-sat</option></entry>
1664               <entry>Dump saturated output</entry>
1665               <entry>dynamic</entry>
1666               <entry>-</entry>
1667             </row>
1668             <row>
1669               <entry><option>-ddump-simpl</option></entry>
1670               <entry>Dump final simplifier output</entry>
1671               <entry>dynamic</entry>
1672               <entry>-</entry>
1673             </row>
1674             <row>
1675               <entry><option>-ddump-simpl-iterations</option></entry>
1676               <entry>Dump output from each simplifier iteration</entry>
1677               <entry>dynamic</entry>
1678               <entry>-</entry>
1679             </row>
1680             <row>
1681               <entry><option>-ddump-spec</option></entry>
1682               <entry>Dump specialiser output</entry>
1683               <entry>dynamic</entry>
1684               <entry>-</entry>
1685             </row>
1686             <row>
1687               <entry><option>-ddump-stg</option></entry>
1688               <entry>Dump final STG</entry>
1689               <entry>dynamic</entry>
1690               <entry>-</entry>
1691             </row>
1692             <row>
1693               <entry><option>-ddump-stranal</option></entry>
1694               <entry>Dump strictness analyser output</entry>
1695               <entry>dynamic</entry>
1696               <entry>-</entry>
1697             </row>
1698             <row>
1699               <entry><option>-ddump-tc</option></entry>
1700               <entry>Dump typechecker output</entry>
1701               <entry>dynamic</entry>
1702               <entry>-</entry>
1703             </row>
1704             <row>
1705               <entry><option>-ddump-types</option></entry>
1706               <entry>Dump type signatures</entry>
1707               <entry>dynamic</entry>
1708               <entry>-</entry>
1709             </row>
1710             <row>
1711               <entry><option>-ddump-usagesp</option></entry>
1712               <entry>Dump UsageSP analysis output</entry>
1713               <entry>dynamic</entry>
1714               <entry>-</entry>
1715             </row>
1716             <row>
1717               <entry><option>-ddump-worker-wrapper</option></entry>
1718               <entry>Dump worker-wrapper output</entry>
1719               <entry>dynamic</entry>
1720               <entry>-</entry>
1721             </row>
1722             <row>
1723               <entry><option>-ddump-rn-trace</option></entry>
1724               <entry>Trace renamer</entry>
1725               <entry>dynamic</entry>
1726               <entry>-</entry>
1727             </row>
1728             <row>
1729               <entry><option>-ddump-rn-stats</option></entry>
1730               <entry>Renamer stats</entry>
1731               <entry>dynamic</entry>
1732               <entry>-</entry>
1733             </row>
1734             <row>
1735               <entry><option>-ddump-stix</option></entry>
1736               <entry>Native code generator intermediate form</entry>
1737               <entry>dynamic</entry>
1738               <entry>-</entry>
1739             </row>
1740             <row>
1741               <entry><option>-ddump-simpl-stats</option></entry>
1742               <entry>Dump simplifier stats</entry>
1743               <entry>dynamic</entry>
1744               <entry>-</entry>
1745             </row>
1746             <row>
1747               <entry><option>-dppr-debug</option></entry>
1748               <entry>Turn on debug printing (more verbose)</entry>
1749               <entry>static</entry>
1750               <entry>-</entry>
1751             </row>
1752             <row>
1753               <entry><option>-dppr-noprags</option></entry>
1754               <entry>Don't output pragma info in dumps</entry>
1755               <entry>static</entry>
1756               <entry>-</entry>
1757             </row>
1758             <row>
1759               <entry><option>-dppr-user-length</option></entry>
1760               <entry>Set the depth for printing expressions in error msgs</entry>
1761               <entry>static</entry>
1762               <entry>-</entry>
1763             </row>
1764             <row>
1765               <entry><option>-dsource-stats</option></entry>
1766               <entry>Dump haskell source stats</entry>
1767               <entry>dynamic</entry>
1768               <entry>-</entry>
1769             </row>
1770             <row>
1771               <entry><option>-dstg-lint</option></entry>
1772               <entry>STG pass sanity checking</entry>
1773               <entry>dynamic</entry>
1774               <entry>-</entry>
1775             </row>
1776             <row>
1777               <entry><option>-dstg-stats</option></entry>
1778               <entry>Dump STG stats</entry>
1779               <entry>dynamic</entry>
1780               <entry>-</entry>
1781             </row>
1782             <row>
1783               <entry><option>-dusagesp-lint</option></entry>
1784               <entry>UsageSP sanity checker</entry>
1785               <entry>dynamic</entry>
1786               <entry>-</entry>
1787             </row>
1788             <row>
1789               <entry><option>-dverbose-core2core</option></entry>
1790               <entry>Show output from each core-to-core pass</entry>
1791               <entry>dynamic</entry>
1792               <entry>-</entry>
1793             </row>
1794             <row>
1795               <entry><option>-dverbose-stg2stg</option></entry>
1796               <entry>Show output from each STG-to-STG pass</entry>
1797               <entry>dynamic</entry>
1798               <entry>-</entry>
1799             </row>
1800             <row>
1801               <entry><option>-unreg</option></entry>
1802               <entry>Enable unregisterised compilation</entry>
1803               <entry>static</entry>
1804               <entry>-</entry>
1805             </row>
1806           </tbody>
1807         </tgroup>
1808       </informaltable>
1809     </sect2>
1810
1811     <sect2>
1812       <title>Misc compiler options</title>
1813
1814       <informaltable>
1815         <tgroup cols="3" align="left" colsep="1" rowsep="1">
1816           <thead>
1817             <row>
1818               <entry>Flag</entry>
1819               <entry>Description</entry>
1820               <entry>Static/Dynamic</entry>
1821               <entry>Reverse</entry>
1822             </row>
1823           </thead>
1824           <tbody>
1825             <row>
1826               <entry><option>-femit-extern-decls</option></entry>
1827               <entry>???</entry>
1828               <entry>static</entry>
1829               <entry>-</entry>
1830             </row>
1831             <row>
1832               <entry><option>-fglobalise-toplev-names</option></entry>
1833               <entry>Make all top-level names global (for <option>-split-objs</option>)</entry>
1834               <entry>static</entry>
1835               <entry>-</entry>
1836             </row>
1837             <row>
1838               <entry><option>-fno-hi-version-check</option></entry>
1839               <entry>Don't complain about <literal>.hi</literal> file mismatches</entry>
1840               <entry>static</entry>
1841               <entry>-</entry>
1842             </row>
1843             <row>
1844               <entry><option>-dno-black-holing</option></entry>
1845               <entry>Turn off black holing (probably doesn't work)</entry>
1846               <entry>static</entry>
1847               <entry>-</entry>
1848             </row>
1849             <row>
1850               <entry><option>-fno-method-sharing</option></entry>
1851               <entry>Don't share specialisations of overloaded functions</entry>
1852               <entry>static</entry>
1853               <entry>-</entry>
1854             </row>
1855             <row>
1856               <entry><option>-fno-prune-decls</option></entry>
1857               <entry>Renamer: don't prune declarations</entry>
1858               <entry>static</entry>
1859               <entry>-</entry>
1860             </row>
1861             <row>
1862               <entry><option>-fhistory-size</option></entry>
1863               <entry>Set simplification history size</entry>
1864               <entry>static</entry>
1865               <entry>-</entry>
1866             </row>
1867             <row>
1868               <entry><option>-funregisterised</option></entry>
1869               <entry>Unregisterised compilation (use <option>-unreg</option> instead)</entry>
1870               <entry>static</entry>
1871               <entry>-</entry>
1872             </row>
1873             <row>
1874               <entry><option>-fno-asm-mangling</option></entry>
1875               <entry>Turn off assembly mangling (use <option>-unreg</option> instead)</entry>
1876               <entry>static</entry>
1877               <entry>-</entry>
1878             </row>
1879           </tbody>
1880         </tgroup>
1881       </informaltable>
1882     </sect2>
1883   </sect1>
1884
1885
1886 <!--
1887 Still to document:
1888
1889 Misc:
1890   ,  ( "H"                 , HasArg (setHeapSize . fromIntegral . decodeSize) )
1891   ,  ( "Rghc-timing"       , NoArg  (enableTimingStats) )
1892
1893   -Bdir
1894 -->
1895
1896 <!-- Emacs stuff:
1897      ;;; Local Variables: ***
1898      ;;; mode: xml ***
1899      ;;; sgml-parent-document: ("users_guide.xml" "book" "chapter") ***
1900      ;;; End: ***
1901  -->