remove empty dir
[ghc-hetmet.git] / 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="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>-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>mode</entry>
54               <entry>-</entry>
55             </row>
56             <row>
57               <entry><option>&ndash;&ndash;version</option></entry>
58               <entry>display GHC version</entry>
59               <entry>mode</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>mode</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>mode</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             <row>
81               <entry><option>-Rghc-timing</option></entry>
82               <entry>Summarise timing stats for GHC (same as <literal>+RTS -tstderr</literal>)</entry>
83               <entry>static</entry>
84               <entry>-</entry>
85             </row>
86           </tbody>
87         </tgroup>
88       </informaltable>
89
90     </sect2>
91     <sect2>
92       <title>Which phases to run</title>
93       
94       <para><xref linkend="options-order"/></para>
95
96       <informaltable>
97         <tgroup cols="4" align="left" colsep="1" rowsep="1">
98           <thead>
99             <row>
100               <entry>Flag</entry>
101               <entry>Description</entry>
102               <entry>Static/Dynamic</entry>
103               <entry>Reverse</entry>
104             </row>
105           </thead>
106           <tbody>
107             <row>
108               <entry><option>-E</option></entry>
109               <entry>Stop after preprocessing (<literal>.hspp</literal> file)</entry>
110               <entry>mode</entry>
111               <entry>-</entry>
112             </row>
113             <row>
114               <entry><option>-C</option></entry>
115               <entry>Stop after generating C (<literal>.hc</literal> file)</entry>
116               <entry>mode</entry>
117               <entry>-</entry>
118             </row>
119             <row>
120               <entry><option>-S</option></entry>
121               <entry>Stop after generating assembly (<literal>.s</literal> file)</entry>
122               <entry>mode</entry>
123               <entry>-</entry>
124             </row>
125             <row>
126               <entry><option>-c</option></entry>
127               <entry>Do not link</entry>
128               <entry>dynamic</entry>
129               <entry>-</entry>
130             </row>
131             <row>
132               <entry><option>-x</option> <replaceable>suffix</replaceable></entry>
133               <entry>Override default behaviour for source files</entry>
134               <entry>static</entry>
135               <entry>-</entry>
136             </row>
137           </tbody>
138         </tgroup>
139       </informaltable>
140     </sect2>
141
142      <sect2>
143       <title>Alternative modes of operation</title>
144       
145       <para><xref linkend="modes"/></para>
146
147       <informaltable>
148         <tgroup cols="4" align="left" colsep="1" rowsep="1">
149           <thead>
150             <row>
151               <entry>Flag</entry>
152               <entry>Description</entry>
153               <entry>Static/Dynamic</entry>
154               <entry>Reverse</entry>
155             </row>
156           </thead>
157           <tbody>
158             <row>
159               <entry><option>--interactive</option></entry>
160               <entry>Interactive mode - normally used by just running <command>ghci</command></entry>
161               <entry>mode</entry>
162               <entry>-</entry>
163             </row>
164             <row>
165               <entry><option>--make</option></entry>
166               <entry>Build a multi-module Haskell program, automatically figuring out dependencies. Likely to be much easier, and faster, than using <command>make</command>.</entry>
167               <entry>mode</entry>
168               <entry>-</entry>
169             </row>
170             <row>
171               <entry><option>-e <replaceable>expr</replaceable></option></entry>
172               <entry>Evaluate <replaceable>expr</replaceable></entry>
173               <entry>mode</entry>
174               <entry>-</entry>
175             </row>
176             <row>
177               <entry><option>-M</option></entry>
178               <entry>Generate dependency information suitable for use in a <filename>Makefile</filename>.</entry>
179               <entry>mode</entry>
180               <entry>-</entry>
181             </row>
182           </tbody>
183         </tgroup>
184       </informaltable>
185     </sect2>
186
187     <sect2>
188       <title>Redirecting output</title>
189       
190       <para><xref linkend="options-output"/></para>
191
192       <informaltable>
193         <tgroup cols="4" align="left" colsep="1" rowsep="1">
194           <thead>
195             <row>
196               <entry>Flag</entry>
197               <entry>Description</entry>
198               <entry>Static/Dynamic</entry>
199               <entry>Reverse</entry>
200             </row>
201           </thead>
202           <tbody>
203             <row>
204               <entry><option>-hcsuf</option> <replaceable>suffix</replaceable></entry>
205               <entry>set the suffix to use for intermediate C files</entry>
206               <entry>dynamic</entry>
207               <entry>-</entry>
208             </row>
209             <row>
210               <entry><option>-hidir</option> <replaceable>dir</replaceable></entry>
211               <entry>set directory for interface files</entry>
212               <entry>dynamic</entry>
213               <entry>-</entry>
214             </row>
215             <row>
216               <entry><option>-hisuf</option> <replaceable>suffix</replaceable></entry>
217               <entry>set the suffix to use for interface files</entry>
218               <entry>dynamic</entry>
219               <entry>-</entry>
220             </row>
221             <row>
222               <entry><option>-o</option> <replaceable>filename</replaceable></entry>
223               <entry>set output filename</entry>
224               <entry>dynamic</entry>
225               <entry>-</entry>
226             </row>
227             <row>
228               <entry><option>-odir</option> <replaceable>dir</replaceable></entry>
229               <entry>set output directory</entry>
230               <entry>dynamic</entry>
231               <entry>-</entry>
232             </row>
233             <row>
234               <entry><option>-ohi</option> <replaceable>filename</replaceable></entry>
235               <entry>set the filename in which to put the interface</entry>
236               <entry>dynamic</entry>
237               <entry></entry>
238             </row>
239             <row>
240               <entry><option>-osuf</option> <replaceable>suffix</replaceable></entry>
241               <entry>set the output file suffix</entry>
242               <entry>dynamic</entry>
243               <entry>-</entry>
244             </row>
245             <row>
246               <entry><option>-stubdir</option> <replaceable>dir</replaceable></entry>
247               <entry>redirect FFi stub files</entry>
248               <entry>dynamic</entry>
249               <entry>-</entry>
250             </row>
251           </tbody>
252         </tgroup>
253       </informaltable>
254     </sect2>
255
256     <sect2>
257       <title>Keeping intermediate files</title>
258       
259       <para><xref linkend="keeping-intermediates"/></para>
260       
261       <informaltable>
262         <tgroup cols="4" align="left" colsep="1" rowsep="1">
263           <thead>
264             <row>
265               <entry>Flag</entry>
266               <entry>Description</entry>
267               <entry>Static/Dynamic</entry>
268               <entry>Reverse</entry>
269             </row>
270           </thead>
271           <tbody>
272             <row>
273               <entry><option>-keep-hc-file</option></entry>
274               <entry>retain intermediate <literal>.hc</literal> files</entry>
275               <entry>dynamic</entry>
276               <entry>-</entry>
277             </row>
278             <row>
279               <entry><option>-keep-s-file</option></entry>
280               <entry>retain intermediate <literal>.s</literal> files</entry>
281               <entry>dynamic</entry>
282               <entry>-</entry>
283             </row>
284             <row>
285               <entry><option>-keep-raw-s-file</option></entry>
286               <entry>retain intermediate <literal>.raw_s</literal> files</entry>
287               <entry>dynamic</entry>
288               <entry>-</entry>
289             </row>
290             <row>
291               <entry><option>-keep-tmp-files</option></entry>
292               <entry>retain all intermediate temporary files</entry>
293               <entry>dynamic</entry>
294               <entry>-</entry>
295             </row>
296           </tbody>
297         </tgroup>
298       </informaltable>
299     </sect2>
300
301     <sect2>
302       <title>Temporary files</title>
303       
304       <para><xref linkend="temp-files"/></para>
305
306       <informaltable>
307         <tgroup cols="4" align="left" colsep="1" rowsep="1">
308           <thead>
309             <row>
310               <entry>Flag</entry>
311               <entry>Description</entry>
312               <entry>Static/Dynamic</entry>
313               <entry>Reverse</entry>
314             </row>
315           </thead>
316           <tbody>
317             <row>
318               <entry><option>-tmpdir</option></entry>
319               <entry>set the directory for temporary files</entry>
320               <entry>dynamic</entry>
321               <entry>-</entry>
322             </row>
323           </tbody>
324         </tgroup>
325       </informaltable>
326     </sect2>
327
328     <sect2>
329       <title>Finding imports</title>
330
331       <para><xref linkend="search-path"/></para>
332
333       <informaltable>
334         <tgroup cols="4" align="left" colsep="1" rowsep="1">
335           <thead>
336             <row>
337               <entry>Flag</entry>
338
339               <entry>Description</entry>
340               <entry>Static/Dynamic</entry>
341               <entry>Reverse</entry>
342             </row>
343           </thead>
344           <tbody>
345             <row>
346               <entry><option>-i</option><replaceable>dir1</replaceable>:<replaceable>dir2</replaceable>:...</entry>
347               <entry>add <replaceable>dir</replaceable>,
348                   <replaceable>dir2</replaceable>, etc. to import path</entry>
349               <entry>dynamic</entry>
350               <entry>-</entry>
351             </row>
352             <row>
353               <entry><option>-i</option></entry>
354               <entry>Empty the import directory list</entry>
355               <entry>dynamic</entry>
356               <entry>-</entry>
357             </row>
358           </tbody>
359         </tgroup>
360       </informaltable>
361     </sect2>
362
363     <sect2>
364       <title>Interface file options</title>
365
366       <para><xref linkend="hi-options"/></para>
367
368       <informaltable>
369         <tgroup cols="4" align="left" colsep="1" rowsep="1">
370           <thead>
371             <row>
372               <entry>Flag</entry>
373
374               <entry>Description</entry>
375               <entry>Static/Dynamic</entry>
376               <entry>Reverse</entry>
377             </row>
378           </thead>
379           <tbody>
380             <row>
381               <entry><option>-ddump-hi</option></entry>
382               <entry>Dump the new interface to stdout</entry>
383               <entry>dynamic</entry>
384               <entry>-</entry>
385             </row>
386             <row>
387               <entry><option>-ddump-hi-diffs</option></entry>
388               <entry>Show the differences vs. the old interface</entry>
389               <entry>dynamic</entry>
390               <entry>-</entry>
391             </row>
392             <row>
393               <entry><option>-ddump-minimal-imports</option></entry>
394               <entry>Dump a minimal set of imports</entry>
395               <entry>dynamic</entry>
396               <entry>-</entry>
397             </row>
398             <row>
399               <entry><option>--show-iface</option> <replaceable>file</replaceable></entry>
400               <entry>Read the interface in
401               <replaceable>file</replaceable> and dump it as text to
402               <literal>stdout</literal>.</entry>
403               <entry>mode</entry>
404               <entry>-</entry>
405             </row>
406           </tbody>
407         </tgroup>
408       </informaltable>
409     </sect2>
410     
411     <sect2>
412       <title>Recompilation checking</title>
413
414       <para><xref linkend="recomp"/></para>
415
416       <informaltable>
417         <tgroup cols="4" align="left" colsep="1" rowsep="1">
418           <thead>
419             <row>
420               <entry>Flag</entry>
421
422               <entry>Description</entry>
423               <entry>Static/Dynamic</entry>
424               <entry>Reverse</entry>
425             </row>
426           </thead>
427           <tbody>
428             <row>
429               <entry><option>-no-recomp</option></entry>
430               <entry>Turn off recompilation checking; implied by any
431               <option>-ddump-X</option> option</entry>
432               <entry>dynamic</entry>
433               <entry><option>-recomp</option></entry>
434             </row>
435           </tbody>
436         </tgroup>
437       </informaltable>
438     </sect2>
439
440     <sect2>
441       <title>Interactive-mode options</title>
442       
443       <para><xref linkend="ghci-dot-files"/></para>
444
445       <informaltable>
446         <tgroup cols="4" align="left" colsep="1" rowsep="1">
447           <thead>
448             <row>
449               <entry>Flag</entry>
450               <entry>Description</entry>
451               <entry>Static/Dynamic</entry>
452               <entry>Reverse</entry>
453             </row>
454           </thead>
455           <tbody>
456             <row>
457               <entry><option>-ignore-dot-ghci</option></entry>
458               <entry>Disable reading of <filename>.ghci</filename> files</entry>
459               <entry>static</entry>
460               <entry>-</entry>
461             </row>
462             <row>
463               <entry><option>-read-dot-ghci</option></entry>
464               <entry>Enable reading of <filename>.ghci</filename> files</entry>
465               <entry>static</entry>
466               <entry>-</entry>
467             </row>
468           </tbody>
469         </tgroup>
470       </informaltable>
471     </sect2>
472
473     <sect2>
474       <title>Packages</title>
475
476       <para><xref linkend="packages"/></para>
477
478       <informaltable>
479         <tgroup cols="4" align="left" colsep="1" rowsep="1">
480           <thead>
481             <row>
482               <entry>Flag</entry>
483               <entry>Description</entry>
484               <entry>Static/Dynamic</entry>
485               <entry>Reverse</entry>
486             </row>
487           </thead>
488           <tbody>
489             <row>
490               <entry><option>-package</option> <replaceable>P</replaceable></entry>
491               <entry>Expose package <replaceable>P</replaceable></entry>
492               <entry>dynamic</entry>
493               <entry>-</entry>
494             </row>
495             <row>
496               <entry><option>-hide-all-packages</option></entry>
497               <entry>Hide all packages by default</entry>
498               <entry>static</entry>
499               <entry>-</entry>
500             </row>
501             <row>
502               <entry><option>-hide-package</option> <replaceable>name</replaceable></entry>
503               <entry>Hide package <replaceable>P</replaceable></entry>
504               <entry>dynamic</entry>
505               <entry>-</entry>
506             </row>
507             <row>
508               <entry><option>-ignore-package</option> <replaceable>name</replaceable></entry>
509               <entry>Ignore package <replaceable>P</replaceable></entry>
510               <entry>dynamic</entry>
511               <entry>-</entry>
512             </row>
513             <row>
514               <entry><option>-package-conf</option> <replaceable>file</replaceable></entry>
515               <entry>Load more packages from <replaceable>file</replaceable></entry>
516               <entry>dynamic</entry>
517               <entry>-</entry>
518             </row>
519             <row>
520               <entry><option>-no-user-package-conf</option></entry>
521               <entry>Don't load the user's package config file.</entry>
522               <entry>dynamic</entry>
523               <entry>-</entry>
524             </row>
525           </tbody>
526         </tgroup>
527       </informaltable>
528     </sect2>
529
530     <sect2>
531       <title>Language options</title>
532
533       <para><xref linkend="options-language"/></para>
534
535       <informaltable>
536         <tgroup cols="4" align="left" colsep="1" rowsep="1">
537           <thead>
538             <row>
539               <entry>Flag</entry>
540               <entry>Description</entry>
541               <entry>Static/Dynamic</entry>
542               <entry>Reverse</entry>
543             </row>
544           </thead>
545           <tbody>
546             <row>
547               <entry><option>-fallow-overlapping-instances</option></entry>
548               <entry>Enable overlapping instances</entry>
549               <entry>dynamic</entry>
550               <entry><option>-fno-allow-overlapping-instances</option></entry>
551             </row>
552             <row>
553               <entry><option>-fallow-undecidable-instances</option></entry>
554               <entry>Enable undecidable instances</entry>
555               <entry>dynamic</entry>
556               <entry><option>-fno-allow-undecidable-instances</option></entry>
557             </row>
558             <row>
559               <entry><option>-fallow-incoherent-instances</option></entry>
560               <entry>Enable incoherent instances.  
561               Implies <option>-fallow-overlapping-instances</option> </entry>
562               <entry>dynamic</entry>
563               <entry><option>-fno-allow-incoherent-instances</option></entry>
564             </row>
565             <row>
566               <entry><option>-farrows</option></entry>
567               <entry>Enable arrow notation extension</entry>
568               <entry>dynamic</entry>
569               <entry><option>-fno-arrows</option></entry>
570             </row>
571             <row>
572               <entry><option>-fcontext-stack</option><replaceable>n</replaceable></entry>
573               <entry>set the limit for context reduction</entry>
574               <entry>static</entry>
575               <entry><option>-</option></entry>
576             </row>
577             <row>
578               <entry><option>-ffi</option> or <option>-fffi</option></entry>
579               <entry>Enable foreign function interface (implied by
580               <option>-fglasgow-exts</option>)</entry>
581               <entry>dynamic</entry>
582               <entry><option>-fno-ffi</option></entry>
583             </row>
584             <row>
585               <entry><option>-fgenerics</option></entry>
586               <entry>Enable generics</entry>
587               <entry>dynamic</entry>
588               <entry><option>-fno-fgenerics</option></entry>
589             </row>
590             <row>
591               <entry><option>-fglasgow-exts</option></entry>
592               <entry>Enable most language extensions</entry>
593               <entry>dynamic</entry>
594               <entry><option>-fno-glasgow-exts</option></entry>
595             </row>
596             <row>
597               <entry><option>-fimplicit-params</option></entry>
598               <entry>Enable Implicit Parameters.
599               Implied by <option>-fglasgow-exts</option>.</entry>
600               <entry>dynamic</entry>
601               <entry><option>-fno-implicit-params</option></entry>
602             </row>
603             <row>
604               <entry><option>-firrefutable-tuples</option></entry>
605               <entry>Make tuple pattern matching irrefutable</entry>
606               <entry>dynamic</entry>
607               <entry><option>-fno-irrefutable-tuples</option></entry>
608             </row>
609             <row>
610               <entry><option>-fno-implicit-prelude</option></entry>
611               <entry>Don't implicitly <literal>import Prelude</literal></entry>
612               <entry>dynamic</entry>
613               <entry><option>-fimplicit-prelude</option></entry>
614             </row>
615             <row>
616               <entry><option>-fno-monomorphism-restriction</option></entry>
617               <entry>Disable the monomorphism restriction</entry>
618               <entry>dynamic</entry>
619               <entry><option>-fmonomorphism-restriction</option></entry>
620             </row>
621             <row>
622               <entry><option>-fscoped-type-variables</option></entry>
623               <entry>Enable lexically-scoped type variables.
624               Implied by <option>-fglasgow-exts</option>.</entry>
625               <entry>dynamic</entry>
626               <entry><option>-fno-scoped-type-variables</option></entry>
627             </row>
628             <row>
629               <entry><option>-fth</option></entry>
630               <entry>Enable Template Haskell. 
631                 Implied by <option>-fglasgow-exts</option>.</entry>
632               <entry>dynamic</entry>
633               <entry><option>-fno-th</option></entry>
634             </row>
635           </tbody>
636         </tgroup>
637       </informaltable>
638     </sect2>
639
640     <sect2>
641       <title>Warnings</title>
642       
643       <para>(<xref linkend="options-sanity"/></para>
644
645     <informaltable>
646       <tgroup cols="4" align="left" colsep="1" rowsep="1">
647         <thead>
648           <row>
649             <entry>Flag</entry>
650             <entry>Description</entry>
651             <entry>Static/Dynamic</entry>
652             <entry>Reverse</entry>
653           </row>
654         </thead>
655         <tbody>
656           <row>
657             <entry><option>-W</option></entry>
658             <entry>enable normal warnings</entry>
659             <entry>dynamic</entry>
660             <entry><option>-w</option></entry>
661           </row>
662           <row>
663             <entry><option>-w</option></entry>
664             <entry>disable all warnings</entry>
665             <entry>dynamic</entry>
666             <entry>-</entry>
667           </row>
668           <row>
669             <entry><option>-Wall</option></entry>
670             <entry>enable all warnings</entry>
671             <entry>dynamic</entry>
672             <entry><option>-w</option></entry>
673           </row>
674           <row>
675             <entry><option>-Werror</option></entry>
676             <entry>make warnings fatal</entry>
677             <entry>dynamic</entry>
678             <entry></entry>
679           </row>
680
681           <row>
682             <entry><option>-fwarn-deprecations</option></entry>
683             <entry>warn about uses of functions &amp; types that are deprecated</entry>
684             <entry>dynamic</entry>
685             <entry><option>-fno-warn-deprecations</option></entry>
686           </row>
687
688           <row>
689             <entry><option>-fwarn-duplicate-exports</option></entry>
690             <entry>warn when an entity is exported multiple times</entry>
691             <entry>dynamic</entry>
692             <entry><option>-fno-warn-duplicate-exports</option></entry>
693           </row>
694
695           <row>
696             <entry><option>-fwarn-hi-shadowing</option></entry>
697             <entry>warn when a <literal>.hi</literal> file in the
698             current directory shadows a library</entry>
699             <entry>dynamic</entry>
700             <entry><option>-fno-warn-hi-shadowing</option></entry>
701           </row>
702
703           <row>
704             <entry><option>-fwarn-incomplete-patterns</option></entry>
705             <entry>warn when a pattern match could fail</entry>
706             <entry>dynamic</entry>
707             <entry><option>-fno-warn-incomplete-patterns</option></entry>
708           </row>
709
710           <row>
711             <entry><option>-fwarn-incomplete-record-updates</option></entry>
712             <entry>warn when a record update could fail</entry>
713             <entry>dynamic</entry>
714             <entry><option>-fno-warn-incomplete-record-updates</option></entry>
715           </row>
716
717           <row>
718             <entry><option>-fwarn-misc</option></entry>
719             <entry>enable miscellaneous warnings</entry>
720             <entry>dynamic</entry>
721             <entry><option>-fno-warn-misc</option></entry>
722           </row>
723
724           <row>
725             <entry><option>-fwarn-missing-fields</option></entry>
726             <entry>warn when fields of a record are uninitialised</entry>
727             <entry>dynamic</entry>
728             <entry><option>-fno-warn-missing-fields</option></entry>
729           </row>
730
731           <row>
732             <entry><option>-fwarn-missing-methods</option></entry>
733             <entry>warn when class methods are undefined</entry>
734             <entry>dynamic</entry>
735             <entry><option>-fno-warn-missing-methods</option></entry>
736           </row>
737
738           <row>
739             <entry><option>-fwarn-missing-signatures</option></entry>
740             <entry>warn about top-level functions without signatures</entry>
741             <entry>dynamic</entry>
742             <entry><option>-fno-warn-missing-signatures</option></entry>
743           </row>
744
745           <row>
746             <entry><option>-fwarn-name-shadowing</option></entry>
747             <entry>warn when names are shadowed</entry>
748             <entry>dynamic</entry>
749             <entry><option>-fno-warn-name-shadowing</option></entry>
750           </row>
751
752           <row>
753             <entry><option>-fwarn-oprhans</option></entry>
754             <entry>warn when the module contains "orphan" instance declarations
755             or rewrite rules</entry>
756             <entry>dynamic</entry>
757             <entry><option>-fno-warn-orphans</option></entry>
758           </row>
759
760           <row>
761             <entry><option>-fwarn-overlapping-patterns</option></entry>
762             <entry>warn about overlapping patterns</entry>
763             <entry>dynamic</entry>
764             <entry><option>-fno-warn-overlapping-patterns</option></entry>
765           </row>
766
767           <row>
768             <entry><option>-fwarn-simple-patterns</option></entry>
769             <entry>warn about lambda-patterns that can fail</entry>
770             <entry>dynamic</entry>
771             <entry><option>-fno-warn-simple-patterns</option></entry>
772           </row>
773
774           <row>
775             <entry><option>-fwarn-type-defaults</option></entry>
776             <entry>warn when defaulting happens</entry>
777             <entry>dynamic</entry>
778             <entry><option>-fno-warn-type-defaults</option></entry>
779           </row>
780
781           <row>
782             <entry><option>-fwarn-unused-binds</option></entry>
783             <entry>warn about bindings that are unused</entry>
784             <entry>dynamic</entry>
785             <entry><option>-fno-warn-unused-binds</option></entry>
786           </row>
787
788           <row>
789             <entry><option>-fwarn-unused-imports</option></entry>
790             <entry>warn about unnecessary imports</entry>
791             <entry>dynamic</entry>
792             <entry><option>-fno-warn-unused-imports</option></entry>
793           </row>
794
795           <row>
796             <entry><option>-fwarn-unused-matches</option></entry>
797             <entry>warn about variables in patterns that aren't used</entry>
798             <entry>dynamic</entry>
799             <entry><option>-fno-warn-unused-matches</option></entry>
800           </row>
801
802           </tbody>
803         </tgroup>
804       </informaltable>
805
806     </sect2>
807     <sect2>
808       <title>Optimisation levels</title>
809
810       <para><xref linkend="options-optimise"/></para>
811
812       <informaltable>
813         <tgroup cols="4" align="left" colsep="1" rowsep="1">
814           <thead>
815             <row>
816               <entry>Flag</entry>
817               <entry>Description</entry>
818               <entry>Static/Dynamic</entry>
819               <entry>Reverse</entry>
820             </row>
821           </thead>
822           <tbody>
823             <row>
824               <entry><option>-O</option></entry>
825               <entry>Enable default optimisation (level 1)</entry>
826               <entry>dynamic</entry>
827               <entry><option>-O0</option></entry>
828             </row>
829             <row>
830               <entry><option>-O</option><replaceable>n</replaceable></entry>
831               <entry>Set optimisation level <replaceable>n</replaceable></entry>
832               <entry>dynamic</entry>
833               <entry><option>-O0</option></entry>
834             </row>
835           </tbody>
836         </tgroup>
837       </informaltable>
838               
839     </sect2>
840     <sect2>
841       <title>Individual optimisations</title>
842
843       <para><xref linkend="options-f"/></para>
844
845       <informaltable>
846         <tgroup cols="4" align="left" colsep="1" rowsep="1">
847           <thead>
848             <row>
849               <entry>Flag</entry>
850               <entry>Description</entry>
851               <entry>Static/Dynamic</entry>
852               <entry>Reverse</entry>
853             </row>
854           </thead>
855           <tbody>
856             <row>
857               <entry><option>-fcase-merge</option></entry>
858               <entry>Enable case-merging</entry>
859               <entry>dynamic</entry>
860               <entry><option>-fno-case-merge</option></entry>
861             </row>
862
863             <row>
864               <entry><option>-fdicts-strict</option></entry>
865               <entry>Make dictionaries strict</entry>
866               <entry>static</entry>
867               <entry><option>-fno-dicts-strict</option></entry>
868             </row>
869
870             <row>
871               <entry><option>-fdo-eta-reduction</option></entry>
872               <entry>Enable eta-reduction</entry>
873               <entry>dynamic</entry>
874               <entry><option>-fno-do-eta-reduction</option></entry>
875             </row>
876
877             <row>
878               <entry><option>-fdo-lambda-eta-expansion</option></entry>
879               <entry>Enable lambda eta-reduction</entry>
880               <entry>dynamic</entry>
881               <entry><option>-fno-do-lambda-eta-expansion</option></entry>
882             </row>
883
884             <row>
885               <entry><option>-fexcess-precision</option></entry>
886               <entry>Enable excess intermediate precision</entry>
887               <entry>dynamic</entry>
888               <entry><option>-fno-excess-precision</option></entry>
889             </row>
890
891             <row>
892               <entry><option>-frules-off</option></entry>
893               <entry>Switch off all rewrite rules (including rules
894               generated by automatic specialisation of overloaded functions)</entry>
895               <entry>static</entry>
896               <entry><option>-frules-off</option></entry>
897             </row>
898
899             <row>
900               <entry><option>-fignore-asserts</option></entry>
901               <entry>Ignore assertions in the source</entry>
902               <entry>dynamic</entry>
903               <entry><option>-fno-ignore-asserts</option></entry>
904             </row>
905
906             <row>
907               <entry><option>-fignore-interface-pragmas</option></entry>
908               <entry>Ignore pragmas in interface files</entry>
909               <entry>dynamic</entry>
910               <entry><option>-fno-ignore-interface-pragmas</option></entry>
911             </row>
912
913             <row>
914               <entry><option>-fliberate-case-threshold</option></entry>
915               <entry>Tweak the liberate-case optimisation (default: 10)</entry>
916               <entry>static</entry>
917               <entry><option>-fno-liberate-case-threshold</option></entry>
918             </row>
919
920             <row>
921               <entry><option>-fomit-interface-pragmas</option></entry>
922               <entry>Don't generate interface pragmas</entry>
923               <entry>dynamic</entry>
924               <entry><option>-fno-omit-interface-pragmas</option></entry>
925             </row>
926
927             <row>
928               <entry><option>-fmax-worker-args</option></entry>
929               <entry>If a worker has that many arguments, none will be
930                 unpacked anymore (default: 10)</entry>
931               <entry>static</entry>
932               <entry>-</entry>
933             </row>
934
935             <row>
936               <entry><option>-fmax-simplifier-iterations</option></entry>
937               <entry>Set the max iterations for the simplifier</entry>
938               <entry>dynamic</entry>
939               <entry>-</entry>
940             </row>
941
942             <row>
943               <entry><option>-fno-state-hack</option></entry>
944               <entry>Turn off the "state hack" whereby any lambda with a real-world state token
945               as argument is considered to be single-entry.  Hence OK to inline things inside it.</entry>
946               <entry>static</entry>
947               <entry>-</entry>
948             </row>
949
950             <row>
951               <entry><option>-fno-cse</option></entry>
952               <entry>Turn off common sub-expression</entry>
953               <entry>dynamic</entry>
954               <entry>-</entry>
955             </row>
956
957             <row>
958               <entry><option>-fno-full-laziness</option></entry>
959               <entry>Turn off full laziness (floating bindings outwards).</entry>
960               <entry>dynamic</entry>
961               <entry>-ffull-laziness</entry>
962             </row>
963
964             <row>
965               <entry><option>-fno-pre-inlining</option></entry>
966               <entry>Turn off pre-inlining</entry>
967               <entry>static</entry>
968               <entry>-</entry>
969             </row>
970
971             <row>
972               <entry><option>-fno-strictness</option></entry>
973               <entry>Turn off strictness analysis</entry>
974               <entry>dynamic</entry>
975               <entry>-</entry>
976             </row>
977
978             <row>
979               <entry><option>-funbox-strict-fields</option></entry>
980               <entry>Flatten strict constructor fields</entry>
981               <entry>dynamic</entry>
982               <entry><option>-fno-unbox-strict-fields</option></entry>
983             </row>
984
985             <row>
986               <entry><option>-funfolding-creation-threshold</option></entry>
987               <entry>Tweak unfolding settings</entry>
988               <entry>static</entry>
989               <entry><option>-fno-unfolding-creation-threshold</option></entry>
990             </row>
991
992             <row>
993               <entry><option>-funfolding-fun-discount</option></entry>
994               <entry>Tweak unfolding settings</entry>
995               <entry>static</entry>
996               <entry><option>-fno-unfolding-fun-discount</option></entry>
997             </row>
998
999             <row>
1000               <entry><option>-funfolding-keeness-factor</option></entry>
1001               <entry>Tweak unfolding settings</entry>
1002               <entry>static</entry>
1003               <entry><option>-fno-unfolding-keeness-factor</option></entry>
1004             </row>
1005
1006             <row>
1007               <entry><option>-funfolding-update-in-place</option></entry>
1008               <entry>Tweak unfolding settings</entry>
1009               <entry>static</entry>
1010               <entry><option>-fno-unfolding-update-in-place</option></entry>
1011             </row>
1012
1013             <row>
1014               <entry><option>-funfolding-use-threshold</option></entry>
1015               <entry>Tweak unfolding settings</entry>
1016               <entry>static</entry>
1017               <entry><option>-fno-unfolding-use-threshold</option></entry>
1018             </row>
1019           </tbody>
1020         </tgroup>
1021       </informaltable>
1022     </sect2>
1023
1024     <sect2>
1025       <title>Profiling options</title>
1026       
1027       <para><xref linkend="profiling"/></para>
1028
1029       <informaltable>
1030         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1031           <thead>
1032             <row>
1033               <entry>Flag</entry>
1034               <entry>Description</entry>
1035               <entry>Static/Dynamic</entry>
1036               <entry>Reverse</entry>
1037             </row>
1038           </thead>
1039           <tbody>
1040             <row>
1041               <entry><option>-auto</option></entry>
1042               <entry>Auto-add <literal>_scc_</literal>s to all
1043               exported functions</entry>
1044               <entry>static</entry>
1045               <entry><option>-no-auto</option></entry>
1046             </row>
1047             <row>
1048               <entry><option>-auto-all</option></entry>
1049               <entry>Auto-add <literal>_scc_</literal>s to all
1050               top-level functions</entry>
1051               <entry>static</entry>
1052               <entry><option>-no-auto-all</option></entry>
1053             </row>
1054             <row>
1055               <entry><option>-auto-dicts</option></entry>
1056               <entry>Auto-add <literal>_scc_</literal>s to all dictionaries</entry>
1057               <entry>static</entry>
1058               <entry><option>-no-auto-dicts</option></entry>
1059             </row>
1060             <row>
1061               <entry><option>-caf-all</option></entry>
1062               <entry>Auto-add <literal>_scc_</literal>s to all CAFs</entry>
1063               <entry>static</entry>
1064               <entry><option>-no-caf-all</option></entry>
1065             </row>
1066             <row>
1067               <entry><option>-prof</option></entry>
1068               <entry>Turn on profiling</entry>
1069               <entry>static</entry>
1070               <entry>-</entry>
1071             </row>
1072             <row>
1073               <entry><option>-ticky</option></entry>
1074               <entry>Turn on ticky-ticky profiling</entry>
1075               <entry>static</entry>
1076               <entry>-</entry>
1077             </row>
1078           </tbody>
1079         </tgroup>
1080       </informaltable>
1081     </sect2>
1082
1083     <sect2>
1084       <title>Parallelism options</title>
1085
1086       <para><xref linkend="sec-using-parallel"/></para>
1087
1088       <informaltable>
1089         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1090           <thead>
1091             <row>
1092               <entry>Flag</entry>
1093               <entry>Description</entry>
1094               <entry>Static/Dynamic</entry>
1095               <entry>Reverse</entry>
1096             </row>
1097           </thead>
1098           <tbody>
1099             <row>
1100               <entry><option>-gransim</option></entry>
1101               <entry>Enable GRANSIM</entry>
1102               <entry>static</entry>
1103               <entry>-</entry>
1104             </row>
1105             <row>
1106               <entry><option>-parallel</option></entry>
1107               <entry>Enable Parallel Haskell</entry>
1108               <entry>static</entry>
1109               <entry>-</entry>
1110             </row>
1111             <row>
1112               <entry><option>-smp</option></entry>
1113               <entry>Enable SMP support</entry>
1114               <entry>static</entry>
1115               <entry>-</entry>
1116             </row>
1117           </tbody>
1118         </tgroup>
1119       </informaltable>
1120     </sect2>
1121
1122     <sect2>
1123       <title>C pre-processor options</title>
1124
1125       <para><xref linkend="c-pre-processor"/></para>
1126
1127       <informaltable>
1128         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1129           <thead>
1130             <row>
1131               <entry>Flag</entry>
1132               <entry>Description</entry>
1133               <entry>Static/Dynamic</entry>
1134               <entry>Reverse</entry>
1135             </row>
1136           </thead>
1137           <tbody>
1138             <row>
1139               <entry><option>-cpp</option></entry>
1140               <entry>Run the C pre-processor on Haskell source files</entry>
1141               <entry>dynamic</entry>
1142               <entry>-</entry>
1143             </row>
1144             <row>
1145               <entry><option>-D</option><replaceable>symbol</replaceable><optional>=<replaceable>value</replaceable></optional></entry>
1146               <entry>Define a symbol in the C pre-processor</entry>
1147               <entry>dynamic</entry>
1148               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1149             </row>
1150             <row>
1151               <entry><option>-U</option><replaceable>symbol</replaceable></entry>
1152               <entry>Undefine a symbol in the C pre-processor</entry>
1153               <entry>dynamic</entry>
1154               <entry>-</entry>
1155             </row>
1156             <row>
1157               <entry><option>-I</option><replaceable>dir</replaceable></entry>
1158               <entry>Add <replaceable>dir</replaceable> to the
1159               directory search list for <literal>#include</literal> files</entry>
1160               <entry>dynamic</entry>
1161               <entry>-</entry>
1162             </row>
1163           </tbody>
1164         </tgroup>
1165       </informaltable>
1166     </sect2>
1167
1168     <sect2>
1169       <title>C compiler options</title>
1170
1171       <para><xref linkend="options-C-compiler"/></para>
1172       <informaltable>
1173         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1174           <thead>
1175             <row>
1176               <entry>Flag</entry>
1177               <entry>Description</entry>
1178               <entry>Static/Dynamic</entry>
1179               <entry>Reverse</entry>
1180             </row>
1181           </thead>
1182           <tbody>
1183             <row>
1184               <entry><option>-#include</option> <replaceable>file</replaceable></entry>
1185               <entry>Include <replaceable>file</replaceable> when
1186               compiling the <filename>.hc</filename> file</entry>
1187               <entry>dynamic</entry>
1188               <entry>-</entry>
1189             </row>
1190           </tbody>
1191         </tgroup>
1192       </informaltable>
1193     </sect2>
1194
1195     <sect2>
1196       <title>Code generation options</title>
1197
1198       <para><xref linkend="options-codegen"/></para>
1199
1200       <informaltable>
1201         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1202           <thead>
1203             <row>
1204               <entry>Flag</entry>
1205               <entry>Description</entry>
1206               <entry>Static/Dynamic</entry>
1207               <entry>Reverse</entry>
1208             </row>
1209           </thead>
1210           <tbody>
1211             <row>
1212               <entry><option>-fasm</option></entry>
1213               <entry>Use the native code generator</entry>
1214               <entry>dynamic</entry>
1215               <entry>-fvia-C</entry>
1216             </row>
1217             <row>
1218               <entry><option>-fvia-C</option></entry>
1219               <entry>Compile via C</entry>
1220               <entry>dynamic</entry>
1221               <entry>-fasm</entry>
1222             </row>
1223             <row>
1224               <entry><option>-fno-code</option></entry>
1225               <entry>Omit code generation</entry>
1226               <entry>mode</entry>
1227               <entry>-</entry>
1228             </row>
1229           </tbody>
1230         </tgroup>
1231       </informaltable>
1232     </sect2>
1233
1234     <sect2>
1235       <title>Linking options</title>
1236
1237       <para><xref linkend="options-linker"/></para>
1238
1239       <informaltable>
1240         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1241           <thead>
1242             <row>
1243               <entry>Flag</entry>
1244               <entry>Description</entry>
1245               <entry>Static/Dynamic</entry>
1246               <entry>Reverse</entry>
1247             </row>
1248           </thead>
1249           <tbody>
1250             <row>
1251               <entry><option>-dynamic</option></entry>
1252               <entry>Use dynamic Haskell libraries (if available)</entry>
1253               <entry>static</entry>
1254               <entry>-</entry>
1255             </row>
1256             <row>
1257               <entry><option>-framework</option> <replaceable>name</replaceable></entry>
1258               <entry>On Darwin/MacOS X only, link in the framework <replaceable>name</replaceable>.
1259                 This option corresponds to the <option>-framework</option> option for Apple's Linker.</entry>
1260               <entry>dynamic</entry>
1261               <entry>-</entry>
1262             </row>
1263             <row>
1264               <entry><option>-framework-path</option> <replaceable>name</replaceable></entry>
1265               <entry>On Darwin/MacOS X only, add <replaceable>dir</replaceable> to the list of
1266                 directories searched for frameworks.
1267                 This option corresponds to the <option>-F</option> option for Apple's Linker.</entry>
1268               <entry>dynamic</entry>
1269               <entry>-</entry>
1270             </row>
1271             <row>
1272               <entry><option>-l</option><replaceable>lib</replaceable></entry>
1273               <entry>Link in library <replaceable>lib</replaceable></entry>
1274               <entry>dynamic</entry>
1275               <entry>-</entry>
1276             </row>
1277             <row>
1278               <entry><option>-L</option><replaceable>dir</replaceable></entry>
1279               <entry>Add <replaceable>dir</replaceable> to the list of
1280               directories searched for libraries</entry>
1281               <entry>dynamic</entry>
1282               <entry>-</entry>
1283             </row>
1284             <row>
1285               <entry><option>-main-is</option></entry>
1286               <entry>Set main function</entry>
1287               <entry>dynamic</entry>
1288               <entry>-</entry>
1289             </row>
1290             <row>
1291               <entry><option>--mk-dll</option></entry>
1292               <entry>DLL-creation mode (Windows only)</entry>
1293               <entry>dynamic</entry>
1294               <entry>-</entry>
1295             </row>
1296             <row>
1297               <entry><option>-no-hs-main</option></entry>
1298               <entry>Don't assume this program contains <literal>main</literal></entry>
1299               <entry>dynamic</entry>
1300               <entry>-</entry>
1301             </row>
1302             <row>
1303               <entry><option>-no-link</option></entry>
1304               <entry>Omit linking</entry>
1305               <entry>dynamic</entry>
1306               <entry>-</entry>
1307             </row>
1308             <row>
1309               <entry><option>-package</option> <replaceable>name</replaceable></entry>
1310               <entry>Link in package <replaceable>name</replaceable></entry>
1311               <entry>dynamic</entry>
1312               <entry>-</entry>
1313             </row>
1314             <row>
1315               <entry><option>-split-objs</option></entry>
1316               <entry>Split objects (for libraries)</entry>
1317               <entry>dynamic</entry>
1318               <entry>-</entry>
1319             </row>
1320             <row>
1321               <entry><option>-static</option></entry>
1322               <entry>Use static Haskell libraries</entry>
1323               <entry>static</entry>
1324               <entry>-</entry>
1325             </row>
1326             <row>
1327               <entry><option>-threaded</option></entry>
1328               <entry>Use the threaded runtime</entry>
1329               <entry>static</entry>
1330               <entry>-</entry>
1331             </row>
1332             <row>
1333               <entry><option>-debug</option></entry>
1334               <entry>Use the debugging runtime</entry>
1335               <entry>static</entry>
1336               <entry>-</entry>
1337             </row>
1338           </tbody>
1339         </tgroup>
1340       </informaltable>
1341     </sect2>
1342
1343     <sect2>
1344       <title>Replacing phases</title>
1345
1346       <para><xref linkend="replacing-phases"/></para>
1347
1348       <informaltable>
1349         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1350           <thead>
1351             <row>
1352               <entry>Flag</entry>
1353               <entry>Description</entry>
1354               <entry>Static/Dynamic</entry>
1355               <entry>Reverse</entry>
1356             </row>
1357           </thead>
1358           <tbody>
1359             <row>
1360               <entry><option>-pgmL</option> <replaceable>cmd</replaceable></entry>
1361               <entry>Use <replaceable>cmd</replaceable> as the literate pre-processor</entry>
1362               <entry>dynamic</entry>
1363               <entry>-</entry>
1364             </row>
1365             <row>
1366               <entry><option>-pgmP</option> <replaceable>cmd</replaceable></entry>
1367               <entry>Use <replaceable>cmd</replaceable> as the C
1368               pre-processor (with <option>-cpp</option> only)</entry>
1369               <entry>dynamic</entry>
1370               <entry>-</entry>
1371             </row>
1372             <row>
1373               <entry><option>-pgmc</option> <replaceable>cmd</replaceable></entry>
1374               <entry>Use <replaceable>cmd</replaceable> as the C compiler</entry>
1375               <entry>dynamic</entry>
1376               <entry>-</entry>
1377             </row>
1378             <row>
1379               <entry><option>-pgma</option> <replaceable>cmd</replaceable></entry>
1380               <entry>Use <replaceable>cmd</replaceable> as the assembler</entry>
1381               <entry>dynamic</entry>
1382               <entry>-</entry>
1383             </row>
1384             <row>
1385               <entry><option>-pgml</option> <replaceable>cmd</replaceable></entry>
1386               <entry>Use <replaceable>cmd</replaceable> as the linker</entry>
1387               <entry>dynamic</entry>
1388               <entry>-</entry>
1389             </row>
1390             <row>
1391               <entry><option>-pgmdll</option> <replaceable>cmd</replaceable></entry>
1392               <entry>Use <replaceable>cmd</replaceable> as the DLL generator</entry>
1393               <entry>dynamic</entry>
1394               <entry>-</entry>
1395             </row>
1396             <row>
1397               <entry><option>-pgmdep</option> <replaceable>cmd</replaceable></entry>
1398               <entry>Use <replaceable>cmd</replaceable> as the dependency generator</entry>
1399               <entry>dyanmic</entry>
1400               <entry>-</entry>
1401             </row>
1402             <row>
1403               <entry><option>-pgmF</option> <replaceable>cmd</replaceable></entry>
1404               <entry>Use <replaceable>cmd</replaceable> as the pre-processor
1405               (with <option>-F</option> only)</entry>
1406               <entry>dynamic</entry>
1407               <entry>-</entry>
1408             </row>
1409           </tbody>
1410         </tgroup>
1411       </informaltable>
1412       <indexterm><primary><option>-pgmL</option></primary></indexterm>
1413       <indexterm><primary><option>-pgmP</option></primary></indexterm>
1414       <indexterm><primary><option>-pgmc</option></primary></indexterm>
1415       <indexterm><primary><option>-pgma</option></primary></indexterm>
1416       <indexterm><primary><option>-pgml</option></primary></indexterm>
1417       <indexterm><primary><option>-pgmdll</option></primary></indexterm>
1418       <indexterm><primary><option>-pgmdep</option></primary></indexterm>
1419       <indexterm><primary><option>-pgmF</option></primary></indexterm>
1420
1421     </sect2>
1422
1423     <sect2>
1424       <title>Forcing options to particular phases</title>
1425
1426       <para><xref linkend="forcing-options-through"/></para>
1427
1428       <informaltable>
1429         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1430           <thead>
1431             <row>
1432               <entry>Flag</entry>
1433               <entry>Description</entry>
1434               <entry>Static/Dynamic</entry>
1435               <entry>Reverse</entry>
1436             </row>
1437           </thead>
1438           <tbody>
1439             <row>
1440               <entry><option>-optL</option> <replaceable>option</replaceable></entry>
1441               <entry>pass <replaceable>option</replaceable> to the literate pre-processor</entry>
1442               <entry>dynamic</entry>
1443               <entry>-</entry>
1444             </row>
1445             <row>
1446               <entry><option>-optP</option> <replaceable>option</replaceable></entry>
1447               <entry>pass <replaceable>option</replaceable> to cpp (with
1448               <option>-cpp</option> only)</entry>
1449               <entry>dynamic</entry>
1450               <entry>-</entry>
1451             </row>
1452             <row>
1453               <entry><option>-optF</option> <replaceable>option</replaceable></entry>
1454               <entry>pass <replaceable>option</replaceable> to the
1455               custom pre-processor</entry>
1456               <entry>dynamic</entry>
1457               <entry>-</entry>
1458             </row>
1459             <row>
1460               <entry><option>-optc</option> <replaceable>option</replaceable></entry>
1461               <entry>pass <replaceable>option</replaceable> to the C compiler</entry>
1462               <entry>dynamic</entry>
1463               <entry>-</entry>
1464             </row>
1465             <row>
1466               <entry><option>-opta</option> <replaceable>option</replaceable></entry>
1467               <entry>pass <replaceable>option</replaceable> to the assembler</entry>
1468               <entry>dynamic</entry>
1469               <entry>-</entry>
1470             </row>
1471             <row>
1472               <entry><option>-optl</option> <replaceable>option</replaceable></entry>
1473               <entry>pass <replaceable>option</replaceable> to the linker</entry>
1474               <entry>dynamic</entry>
1475               <entry>-</entry>
1476             </row>
1477             <row>
1478               <entry><option>-optdll</option> <replaceable>option</replaceable></entry>
1479               <entry>pass <replaceable>option</replaceable> to the DLL generator</entry>
1480               <entry>dynamic</entry>
1481               <entry>-</entry>
1482             </row>
1483             <row>
1484               <entry><option>-optdep</option> <replaceable>option</replaceable></entry>
1485               <entry>pass <replaceable>option</replaceable> to the dependency generator</entry>
1486               <entry>dynamic</entry>
1487               <entry>-</entry>
1488             </row>
1489           </tbody>
1490         </tgroup>
1491       </informaltable>
1492     </sect2>
1493
1494     <sect2>
1495       <title>Platform-specific options</title>
1496       
1497       <para><xref linkend="options-platform"/></para>
1498
1499       <informaltable>
1500         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1501           <thead>
1502             <row>
1503               <entry>Flag</entry>
1504               <entry>Description</entry>
1505               <entry>Static/Dynamic</entry>
1506               <entry>Reverse</entry>
1507             </row>
1508           </thead>
1509           <tbody>
1510             <row>
1511               <entry><option>-mv8</option></entry>
1512               <entry>(SPARC only) enable version 8 support</entry>
1513               <entry>static</entry>
1514               <entry>-</entry>
1515             </row>
1516             <row>
1517               <entry><option>-monly-[32]-regs</option></entry>
1518               <entry>(x86 only) give some registers back to the C compiler</entry>
1519               <entry>dynamic</entry>
1520               <entry>-</entry>
1521             </row>
1522           </tbody>
1523         </tgroup>
1524       </informaltable>
1525     </sect2>
1526
1527          
1528     <sect2>
1529       <title>External core file options</title>
1530
1531       <para><xref linkend="ext-core"/></para>
1532
1533       <informaltable>
1534         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1535           <thead>
1536             <row>
1537               <entry>Flag</entry>
1538               <entry>Description</entry>
1539               <entry>Static/Dynamic</entry>
1540               <entry>Reverse</entry>
1541             </row>
1542           </thead>
1543           <tbody>
1544             <row>
1545               <entry><option>-fext-core</option></entry>
1546               <entry>Generate <filename>.hcr</filename> external Core files</entry>
1547               <entry>static</entry>
1548               <entry>-</entry>
1549             </row>
1550           </tbody>
1551         </tgroup>
1552       </informaltable>
1553     </sect2>
1554
1555
1556     <sect2>
1557       <title>Compiler debugging options</title>
1558
1559       <para><xref linkend="options-debugging"/></para>
1560
1561       <informaltable>
1562         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1563           <thead>
1564             <row>
1565               <entry>Flag</entry>
1566               <entry>Description</entry>
1567               <entry>Static/Dynamic</entry>
1568               <entry>Reverse</entry>
1569             </row>
1570           </thead>
1571           <tbody>
1572             <row>
1573               <entry><option>-dcore-lint</option></entry>
1574               <entry>Turn on internal sanity checking</entry>
1575               <entry>dynamic</entry>
1576               <entry>-</entry>
1577             </row>
1578             <row>
1579               <entry><option>-ddump-absC</option></entry>
1580               <entry>Dump abstract C</entry>
1581               <entry>dynamic</entry>
1582               <entry>-</entry>
1583             </row>
1584             <row>
1585               <entry><option>-ddump-asm</option></entry>
1586               <entry>Dump assembly</entry>
1587               <entry>dynamic</entry>
1588               <entry>-</entry>
1589             </row>
1590             <row>
1591               <entry><option>-ddump-bcos</option></entry>
1592               <entry>Dump interpreter byte code</entry>
1593               <entry>dynamic</entry>
1594               <entry>-</entry>
1595             </row>
1596             <row>
1597               <entry><option>-ddump-cpranal</option></entry>
1598               <entry>Dump output from CPR analysis</entry>
1599               <entry>dynamic</entry>
1600               <entry>-</entry>
1601             </row>
1602             <row>
1603               <entry><option>-ddump-cse</option></entry>
1604               <entry>Dump CSE output</entry>
1605               <entry>dynamic</entry>
1606               <entry>-</entry>
1607             </row>
1608             <row>
1609               <entry><option>-ddump-deriv</option></entry>
1610               <entry>Dump deriving output</entry>
1611               <entry>dynamic</entry>
1612               <entry>-</entry>
1613             </row>
1614             <row>
1615               <entry><option>-ddump-ds</option></entry>
1616               <entry>Dump desugarer output</entry>
1617               <entry>dynamic</entry>
1618               <entry>-</entry>
1619             </row>
1620             <row>
1621               <entry><option>-ddump-flatC</option></entry>
1622               <entry>Dump &ldquo;flat&rdquo; C</entry>
1623               <entry>dynamic</entry>
1624               <entry>-</entry>
1625             </row>
1626             <row>
1627               <entry><option>-ddump-foreign</option></entry>
1628               <entry>Dump <literal>foreign export</literal> stubs</entry>
1629               <entry>dynamic</entry>
1630               <entry>-</entry>
1631             </row>
1632             <row>
1633               <entry><option>-ddump-inlinings</option></entry>
1634               <entry>Dump inlining info</entry>
1635               <entry>dynamic</entry>
1636               <entry>-</entry>
1637             </row>
1638             <row>
1639               <entry><option>-ddump-occur-anal</option></entry>
1640               <entry>Dump occurrence analysis output</entry>
1641               <entry>dynamic</entry>
1642               <entry>-</entry>
1643             </row>
1644             <row>
1645               <entry><option>-ddump-parsed</option></entry>
1646               <entry>Dump parse tree</entry>
1647               <entry>dynamic</entry>
1648               <entry>-</entry>
1649             </row>
1650             <row>
1651               <entry><option>-ddump-realC</option></entry>
1652               <entry>Dump &ldquo;real&rdquo; C</entry>
1653               <entry>dynamic</entry>
1654               <entry>-</entry>
1655             </row>
1656             <row>
1657               <entry><option>-ddump-rn</option></entry>
1658               <entry>Dump renamer output</entry>
1659               <entry>dynamic</entry>
1660               <entry>-</entry>
1661             </row>
1662             <row>
1663               <entry><option>-ddump-rules</option></entry>
1664               <entry>Dump rules</entry>
1665               <entry>dynamic</entry>
1666               <entry>-</entry>
1667             </row>
1668             <row>
1669               <entry><option>-ddump-sat</option></entry>
1670               <entry>Dump saturated output</entry>
1671               <entry>dynamic</entry>
1672               <entry>-</entry>
1673             </row>
1674             <row>
1675               <entry><option>-ddump-simpl</option></entry>
1676               <entry>Dump final simplifier output</entry>
1677               <entry>dynamic</entry>
1678               <entry>-</entry>
1679             </row>
1680             <row>
1681               <entry><option>-ddump-simpl-iterations</option></entry>
1682               <entry>Dump output from each simplifier iteration</entry>
1683               <entry>dynamic</entry>
1684               <entry>-</entry>
1685             </row>
1686             <row>
1687               <entry><option>-ddump-spec</option></entry>
1688               <entry>Dump specialiser output</entry>
1689               <entry>dynamic</entry>
1690               <entry>-</entry>
1691             </row>
1692             <row>
1693               <entry><option>-ddump-stg</option></entry>
1694               <entry>Dump final STG</entry>
1695               <entry>dynamic</entry>
1696               <entry>-</entry>
1697             </row>
1698             <row>
1699               <entry><option>-ddump-stranal</option></entry>
1700               <entry>Dump strictness analyser output</entry>
1701               <entry>dynamic</entry>
1702               <entry>-</entry>
1703             </row>
1704             <row>
1705               <entry><option>-ddump-tc</option></entry>
1706               <entry>Dump typechecker output</entry>
1707               <entry>dynamic</entry>
1708               <entry>-</entry>
1709             </row>
1710             <row>
1711               <entry><option>-ddump-types</option></entry>
1712               <entry>Dump type signatures</entry>
1713               <entry>dynamic</entry>
1714               <entry>-</entry>
1715             </row>
1716             <row>
1717               <entry><option>-ddump-usagesp</option></entry>
1718               <entry>Dump UsageSP analysis output</entry>
1719               <entry>dynamic</entry>
1720               <entry>-</entry>
1721             </row>
1722             <row>
1723               <entry><option>-ddump-worker-wrapper</option></entry>
1724               <entry>Dump worker-wrapper output</entry>
1725               <entry>dynamic</entry>
1726               <entry>-</entry>
1727             </row>
1728             <row>
1729               <entry><option>-ddump-rn-trace</option></entry>
1730               <entry>Trace renamer</entry>
1731               <entry>dynamic</entry>
1732               <entry>-</entry>
1733             </row>
1734             <row>
1735               <entry><option>-ddump-rn-stats</option></entry>
1736               <entry>Renamer stats</entry>
1737               <entry>dynamic</entry>
1738               <entry>-</entry>
1739             </row>
1740             <row>
1741               <entry><option>-ddump-stix</option></entry>
1742               <entry>Native code generator intermediate form</entry>
1743               <entry>dynamic</entry>
1744               <entry>-</entry>
1745             </row>
1746             <row>
1747               <entry><option>-ddump-simpl-stats</option></entry>
1748               <entry>Dump simplifier stats</entry>
1749               <entry>dynamic</entry>
1750               <entry>-</entry>
1751             </row>
1752             <row>
1753               <entry><option>-dppr-debug</option></entry>
1754               <entry>Turn on debug printing (more verbose)</entry>
1755               <entry>static</entry>
1756               <entry>-</entry>
1757             </row>
1758             <row>
1759               <entry><option>-dppr-noprags</option></entry>
1760               <entry>Don't output pragma info in dumps</entry>
1761               <entry>static</entry>
1762               <entry>-</entry>
1763             </row>
1764             <row>
1765               <entry><option>-dppr-user-length</option></entry>
1766               <entry>Set the depth for printing expressions in error msgs</entry>
1767               <entry>static</entry>
1768               <entry>-</entry>
1769             </row>
1770             <row>
1771               <entry><option>-dsource-stats</option></entry>
1772               <entry>Dump haskell source stats</entry>
1773               <entry>dynamic</entry>
1774               <entry>-</entry>
1775             </row>
1776             <row>
1777               <entry><option>-dstg-lint</option></entry>
1778               <entry>STG pass sanity checking</entry>
1779               <entry>dynamic</entry>
1780               <entry>-</entry>
1781             </row>
1782             <row>
1783               <entry><option>-dstg-stats</option></entry>
1784               <entry>Dump STG stats</entry>
1785               <entry>dynamic</entry>
1786               <entry>-</entry>
1787             </row>
1788             <row>
1789               <entry><option>-dusagesp-lint</option></entry>
1790               <entry>UsageSP sanity checker</entry>
1791               <entry>dynamic</entry>
1792               <entry>-</entry>
1793             </row>
1794             <row>
1795               <entry><option>-dverbose-core2core</option></entry>
1796               <entry>Show output from each core-to-core pass</entry>
1797               <entry>dynamic</entry>
1798               <entry>-</entry>
1799             </row>
1800             <row>
1801               <entry><option>-dverbose-stg2stg</option></entry>
1802               <entry>Show output from each STG-to-STG pass</entry>
1803               <entry>dynamic</entry>
1804               <entry>-</entry>
1805             </row>
1806             <row>
1807               <entry><option>-unreg</option></entry>
1808               <entry>Enable unregisterised compilation</entry>
1809               <entry>static</entry>
1810               <entry>-</entry>
1811             </row>
1812           </tbody>
1813         </tgroup>
1814       </informaltable>
1815     </sect2>
1816       
1817     <sect2>
1818       <title>Misc compiler options</title>
1819
1820       <informaltable>
1821         <tgroup cols="4" align="left" colsep="1" rowsep="1">
1822           <thead>
1823             <row>
1824               <entry>Flag</entry>
1825               <entry>Description</entry>
1826               <entry>Static/Dynamic</entry>
1827               <entry>Reverse</entry>
1828             </row>
1829           </thead>
1830           <tbody>
1831             <row>
1832               <entry><option>-femit-extern-decls</option></entry>
1833               <entry>???</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>-fhistory-size</option></entry>
1857               <entry>Set simplification history size</entry>
1858               <entry>static</entry>
1859               <entry>-</entry>
1860             </row>
1861             <row>
1862               <entry><option>-funregisterised</option></entry>
1863               <entry>Unregisterised compilation (use <option>-unreg</option> instead)</entry>
1864               <entry>static</entry>
1865               <entry>-</entry>
1866             </row>
1867             <row>
1868               <entry><option>-fno-asm-mangling</option></entry>
1869               <entry>Turn off assembly mangling (use <option>-unreg</option> instead)</entry>
1870               <entry>dynamic</entry>
1871               <entry>-</entry>
1872             </row>
1873           </tbody>
1874         </tgroup>
1875       </informaltable>
1876     </sect2>
1877   </sect1>
1878
1879
1880 <!--
1881 Still to document:
1882
1883 Misc:
1884   ,  ( "H"                 , HasArg (setHeapSize . fromIntegral . decodeSize) )
1885
1886   -Bdir
1887 -->
1888
1889 <!-- Emacs stuff:
1890      ;;; Local Variables: ***
1891      ;;; mode: xml ***
1892      ;;; sgml-parent-document: ("users_guide.xml" "book" "chapter") ***
1893      ;;; End: ***
1894  -->